ben franklin essays

ben franklin essays Benjamin Franklin, one of the most important people of the new American Dream was born in Boston in January 1706 to a tradesman and a homemaker. It seemed unlikely that Benjamin Franklin would succeed in becoming one of the shapers of the American dream. Josiah Franklin, his father, a young Dyer in England with his first wife Anne and his three children, Josiah, Hanna, Samuel, and Elizabeth left England and came to Boston in 1683. In the begging society of Boston population 5,000 they seemed not to be in need of Josiahs skills forcing him to find a new trade candle and soap making. Many years later Anne Franklin died from complication of giving birth to her seventh child. Franklins father soon married Abaih Folger of Nantucket who went on to have ten more children who Benjamin was the eight child. From Benjamins point of view his mother was a very caring and loving person. James Franklin, Benjamins older brother had already become a printer by the age of twenty-one. Seeing the opportunity Benjamin signed on with his brother for nine years in 1718. The contract committed Benjamin to work for his brother nine years until the age of twenty-one. The new work opened doors for Benjamin. Through his brothers dealings with booksellers, Benjamin was exposed to a great deal of literature and philosophy. Benjamin franklins talent and ingenuity were instrumental in making his brothers business a success. James had a contract for printing the Boston Gazette. After ten months the contract had ended and was transferred to a rival printer. This angered Benjamin so he started his own newspaper, The New England Courant, in august 1721. Benjamin was assigned to the duty of composing the type and printing the pages. He was also in charge of distributing to reach more readers. Inspired by the dream of becoming a writer Benjamin, ascertain that his brother would not publish any of his work began slipping his work un...

7th Grade Math Course of Study

7th Grade Math Course of Study The following list provides you with the basic 7th grade math  concepts that should be attained by the end of the school year. Mastery of the concepts at the previous grade is assumed. A standard seventh grade course of study includes numbers, measurements, geometry, algebra, and probability. Heres a breakdown of the specific topics. Numbers Give factors, multiples, integer amounts and square roots for numbers.Compare and order decimals, fractions and integers.Add and subtract integers.Be able to perform multi-step word problems for all of the above operations.Add, subtract, multiply and divide fractions and convert between fractions, decimals and percents.Explain and justify a variety of procedures for the above related concepts in problem solving. Measurements Use measurement terms appropriately, be able to measure a variety of items at home and at school.Be able to solve more complex problems with measurement estimations an problems using a variety of formulas.Estimate and calculate areas for trapezoids, parallelograms, triangles, prisms circles using the correct formulas.Estimate and calculate volumes for prisms, sketch prisms (rectangular) given the volumes. Geometry Hypothesize, sketch, identify, sort, classify, construct, measure, and apply a variety of geometric shapes and figures and problems.Sketch and construct a variety of shapes given the dimensions.Create and solve a variety of geometric problems.Analyze and identify shapes that have been rotated, reflected, translated and describe those that are congruent.Determine if shapes/figures will tile a plane (tessellate).Analyze different types of tiling patterns. Algebra/Patterning Extend, analyze and justify the explanations for patterns and their rules and a more complex levelBe able to write algebraic equations/expressions and write statements to understand simple formulas.Evaluate a variety of simple linear algebraic expressions at a beginning level 1 variable and first-degree.Be able to solve and simplify algebraic equations with the 4 operations.Substitute natural numbers for variables when solving algebraic equations. Probability Design surveys, collect and organize more complex data and identify and explain patterns and trends in data.Construct a variety of graphs and label them appropriately and state the difference between selecting one graph over another.Defend your choices of graphs.Make more accurate predictions based on data.Understand the importance of statistics on decision making and provide real life scenarios.Describe collected data in terms of mean, median and the mode and be able to analyze any bias.Make inferences, predictions and evaluations based on interpretations of data collection results.Be able to predict possible outcomes based on background information.Apply the rules of probability to games of chance and sports. Course Topics for All Grades Pre-K Kdg. Gr. 1 Gr. 2 Gr. 3 Gr. 4 Gr. 5 Gr. 6 Gr. 7 Gr. 8 Gr. 9 Gr. 10 Gr.11 Gr. 12

Commanding Heights Movie Review Example | Topics and Well Written Essays - 1000 words

Commanding Heights - Movie Review Example To add on that, consider this scenario, a documentary of cancer that is funded by manufacturers of cigarette, will you believe it fully? Then what you think about an economics documentary that is sponsored by large world corporations? From that, it can be concluded that although Commanding Heights is a PBS production, it is not objective and neutral. This can be demonstrated clearly as the first thing seen are the advertisements from the program corporate sponsors including British Petroleum and the federal express. On further audit, it is crystal clear that one of the original founders of the documentary was Enron even after the company scandalous fall. This illustrates Commanding Heights is substantially a piece of propaganda for the world mega-corporation as the financiers of the program have a major interest in advocating for pro-deregulation economic issues and Pro- big business. Â  This series encompasses frustrating duality: it is informative on issues of the contemporary politics and history but apparently, the bias not only on the choice of facts to present and not to present but also in the interpretation. Episode one, (the battle of ideas), examines two substantial competing ideologies about the economy of the world. Firstly it looks at the analogy of the free market as propagated by an economics theorist called Hayek. On the other hand, it looks at the concept of `planned economy’ as advocated by Keynes. It tracks how the ideological climate transitioned from one to the other over a century with a corresponding impact on the policies of the government. The synopsis of the specific opinion of these two critical thinkers is the most crucial part of this episode while the evaluation of the advantages of these positions is the least important.

River Plate Trust, Loan & Agency Company Ltd Essay

River Plate Trust, Loan & Agency Company Ltd - Essay Example The operation of the companies in the region suffered a setback in the period when the financial crisis of 1930 was felt; however, some companies strived strove to become international firms. One of the companies formed by the Morrison Group in the River plate region was the River Plate Trust, Loan, and Agency (RPTLA), which was formed for in 1881 for three main reasons. The first reason for the formation of the firm was the acquisition of assets as a trust. This was accomplished by the acquisition of the assets of the Mercantile Bank of the River Plate, and the second reason was the provision of loan facilities to the people in the region. This was done through the lending of money in form of mortgages in Argentina and Uruguay, and among the last reasons was the performing of financial agency duties for individuals and firms in the River Plate Region. Another reason for the formation of the firm was the motivation to invest in the mortgage business in the River Plate Region, and the expected high economic growth of the region. The previous occupations of the major stakeholders in the firm were also a big factor in the formation of the RPTLA. ... RPTLA was founded by seven members, John Gorst, Sidney Herbert, Frederick Fearon, Cornelius Cox, Edward Ashworth, Edward Griggs and John Taylor, who went on to become the first board members of the new company. These seven individuals were mostly stakeholders in the Mercantile Bank, either as shareholders, board members, or liquidators, and the rest of the board members were related to the bank in some way. For example, one of the shareholders, Leon Isaac, was part of the family that owned most of the Mercantile Bank. Some other members were politicians, while others were directors of other financial institutions. One example of a director is Griggs, who was a major director in the now defunct Trust and Loan Company of Canada, while some other members were business people and merchants. The similarity of these individuals was drawn around financial institutions, since they were either members of the fallen Mercantile Bank, or former members of other financial institutions in the regi on. The social system in place at the time indicated that the first directors of the RPTLA were in social class 1 and 2, which was reserved for professionals, gentry, and major businesspeople. A year after the formation of the RPTLA, a former senior partner at Ashurst, Morris and Company, John Morris, was appointed as the new Chairman and Managing director of the RPTLA (Slinn, 1997). Under the administration of Morris, the organizational structure of the company was reformed, and the principles that he placed in place guided the company through its entire lifetime. As previously stated, the members of the board of RPTLA were in some way related to the Mercantile Bank, and Morris was no exception, since he was in charge of the law firm that liquidated the bank. This indicates that the

Biology Coursework Example | Topics and Well Written Essays - 1000 words

Biology - Coursework Example For example, the current UK Governmental recommendation is for an individual to consume at least 5 portions of fruit and vegetables per day, which an individual following the above diet would have achieved. It is also recommended that the fruit and vegetables consumed are not all the same colour, again something that this diet provides. Fruit and vegetables are one of the major food groups, the others being starch-based (pasta, rice, bread), protein (meat, fish, eggs), dairy (milk, cheese) and foods containing fat and sugar, although all are needed in different proportions (see diagram 1). Eating a variation of foods from these different groups is essential in maintaining a healthy lifestyle, and the inverse is true – less than adequate quantities from these groups could lead to some serious health problems. Fruit and Vegetables As already discussed, the above diet would provide all the essential fruit and vegetable nutrition for the day. However, it is advisable to eat a wide variety within this group, and thus different combinations within this group should be used throughout the week. Starch The diet above includes three portions of starch – the breakfast porridge, the garlic and the whole meal pasta in the evening. It is recommended that starch in the diet should be whole meal and from complex carbohydrates. Consuming whole meal and complex carbohydrates has been proven to keep blood sugar more consistent throughout the day, as well as increasing insulin sensitivity which can help prevent overeating and obesity. We can assume that the garlic bread found in the diet above has less nutritional value than the other two starch portions and as such could be eliminated from the day and replaced to ensure that calorie input is adequate. Protein Protein is especially important in the human diet, because humans cannot synthesize all 21 amino acids and thus must obtain them nutritionally (Zoumbaris, 2009). Nutritional proteins, found in meat products an d egg albumin, for example, can be broken down into their constituent amino acids and as a result are important for the conservation of life. During the day specified above, the individual consumed chicken breast for lunch, and many of the vegetables will also contain amino acids. The chicken breast could be easily replaced for a vegetarian diet with an egg or some baked beans – both high in protein content. Dairy Dairy products are particularly important for obtaining calcium, a mineral that regulates muscle contraction and blood clotting, as well as ensuring that teeth and bones are strong. Calcium cannot be synthesized in the body and thus must be obtained nutritionally, thus making dairy products necessary. Contrary to popular belief (and diagram 1) it is not only dairy products that contain calcium and this food group can be replaced in the lactose intolerant by certain types of leafy green vegetables, almonds, sesame seeds or calcium enriched milk alternatives. Calcium is not needed in particularly large quantities and the portion of milk in the porridge mentioned above may be adequate. Fat & Sugar Fat and sugar are needed in smaller amounts than any other food type. Fat comes in two types, saturated and unsaturated, and it is currently recommended that saturated fat is consumed in quantities of less than 30g in adult men, with total fat intake being less than 90g a day. Although an excess of fat can be harmful, it should be noted that some fats are needed

Natural Recycling of Aggregate

Natural Recycling of Aggregate Introduction For many years peoples have been trying to keep the environmental clean and mention the natural balance of life. The scientific studies provide us the information and methods to achieve these objectives and the recycling of waste and by product materials represent the main role in these studies [1-4]. As a result of reconstruction of existing buildings and pavements, wars and natural disasters such as earthquakes the amount of construction and demolition materials are increasing every year. At the same time approval of additional facilities for waste disposal or treatment are become more difficult to obtain. Furthermore increasing restrictive environmental regulations have made waste disposal more difficult and expensive. Also the available natural aggregate in some countries decreases and may be become insufficient for the construction projects in these countries in the future [5]. So, the reuse of construction and demolition materials in construction has benefits not only in reducing the amount of materials requiring disposal but also can provide construction materials with significant saving of the original materials. According to the third Building Waste Monitoring Report [6], there is an increase in the recorded amount of building waste in the sectors of the building debris, road scarification and building site waste. It has arisen in Germany by 11.5 million tons, from 77.1 million tons in the period 1997/1998 to 88.6 million tons in the period 1999/2000. According to Rahlwes and Schmidt [7, 8], for concrete only, the annual crushed concrete quantity in west Germany only is about 30 million tones and in the European Union is approximately 130 million ton. Due to intensive building activities in the last decades, these amounts are expected to considerably increase after the year 2000. The properties of recycled coarse aggregate with a grain size above 4 mm and its reuse in concrete production and pavements construction have been evaluated and described in many. It has been estimated that approximately 50 million tons of concrete are currently demolished each year in the European Economic Communities [1], Equivalent figures are 60 million tons in the United States ([2], [3]), and in Japan [12] the total quantity of concrete debris available for recycling on some scale is about 10 to 12 million tons. Very little demolished concrete is currently recycled or reused anywhere in the world. The small quantity which is recovered is mainly reused as unstabilized base or subbase in highway construction. The rest is dumped or disposed of as fill. For Environmental and other reasons the number of readily accessible disposal sites around major cities in the world has decreased in recent years. Both disposals volume and maximum sizes of wastes have been restricted. In Japan disposal charges from USD 3 to 10 per ton are not uncommon. Moreover, distances between demolition sites and disposal areas have become larger and transportation costs higher. At the same time critical shortages of good natural aggregate is developing in many urban areas, and distances between deposits of natural material and sites of new construction have grown larger, and transportation costs have become correspondingly higher, It is estimated that between now and year 2,000, three times more demolished concrete will be generated each year than is today. For these reasons it can be foreseen that demolition contractors will come under considerable economic and other pressure to process demolished concrete for reuse as unscreened gravel, base and subbase materials, aggregates for production of new concrete or for other useful purposes. Large-scale recycling of demolished concrete will contribute not only to the solution of a growing waste disposal problem. It will also help to conserve natural resources of sand and gravel and to secure future supply of reasonably priced aggregates for building and road construction purposes within large urban areas of the world. Applications of Recycled Aggregate The recycled concrete aggregate shown in Figure 1.1 can be defined as crushed concrete composed of aggregate fragments coated with cement paste or cement mortar from the demolition of the old structures or pavements that has been processed to produce aggregates suitable for use in new concrete. The processing, as with many natural aggregates, generally involves crushing, grading and washing. This removes contaminant materials such as reinforcing steel, remnants of formwork, gypsum board, and other foreign materials. The resulting coarse aggregate is then suitable for use in concrete. The fine aggregate, however, generally contains a considerable amount of old cement paste and mortar. This tends to increase the drying shrinkage and creep properties of the new concrete, as well as leading to problems with unworkable mix and strength. Therefore, many transportation departments have found that using 100% coarse recycled aggregate but with only about 10% to 20% recycled fines works well. Regarding the results of most of the previous research that has been done so far, the application of Recycled Aggregate is mostly currently in low quality/strength concrete, for example, pavement base and slab rather than used in structural concrete. The most common application of Recycled Concrete Aggregate is the use in concrete sub-base in road construction, bank protection, noise barriers and embankments, many types of general bulk fills and fill materials for drainage structures. After the removal of contaminants through selective demolition, screening, and/or air separation and size reduction in a crusher to aggregate sizes, crushed concrete can be used as new concrete for pavements, shoulders, median barriers, sidewalks, curbs and gutters, and bridge foundations; structural grade concrete; soil-cement pavement bases; moulded concrete bricks and blocks; bituminous concrete etc. However, there is an example of recycled concrete being used for part of the structural slabs in a high-rise building in Japan but there was no too much detail available on this project. According to research that has been conducted in Australia, current use of recycled aggregates is still only around 7% of road construction material in South Australia. Victoria Road also use recycled aggregate for their road base construction projects in Victoria but MainRoads in Queensland does not currently. Traditionally, the application of recycled aggregate is used as landfill. Nowadays, the applications of recycled aggregate in construction areas are wide. The applications are different from country to country. Concrete Kerb and Gutter Mix Recycled aggregate have been used as concrete kerb and gutter mix in Australia. According to Building Innovation Construction Technology (1999), Stone says that the 10mm recycled aggregate and blended recycled sand are used for concrete kerb and gutter mix in the Lent hall Street project in Sydney. Granular Base Course Materials According to Market Development Study for Recycled Aggregate Products (2001), recycled aggregate are used as granular base course in the road construction. It also stated that recycled aggregate had proved that better than natural aggregate when used as granular base course in roads construction. They also found that when the road is built on the wet sub grade areas, recycled aggregate will stabilize the base and provide an improved working surface for pavement structure construction. Embankment Fill Materials Market Development Study for Recycled Aggregate Products (2001) stated that recycled aggregate can be used in embankment fill. The reason for being able to use in embankment fill is same as it is used in granular base course construction. The embankment site is on the wet sub grade areas. Recycled aggregate can stabilize the base and provide an improved working surface for the remaining works. Paving Blocks Recycled aggregate have been used as paving blocks in Hong Kong. According to Hong Kong Housing Department (n.d.), recycled aggregate are used as typical paving blocks. A trial project had been started to test the long – term performance of paving blocks made with recycled aggregate in 2002. Backfill Materials Recycled aggregate can be used as backfill materials. Mehus and Lillestol (n.d) found that Norwegian Building Research Institute (n.d) mentioned that recycled concrete aggregate can be used as backfill materials in the pipe zone along trenches after having testing in laboratory. Building Blocks Recycled aggregate used as building blocks. Mehus and Lillestol (n.d) stated that Optiroc AS had used recycled aggregate to produce the masonry sound insulation blocks. The masonry sound insulation blocks that produced had met all the requirements during the laboratory testing. International Status Mehus and Lillestol (n.d.) stated that RESIBA had constructed a new high school in Sorumsand, outside the city of Oslo, Norway in 2001. Recycled concrete aggregate had been used in this project. Thirty – five percent of coarse aggregate were replaced by recycled concrete aggregate in the foundations, half of the basement walls and columns. Several tests were conducted based on fresh and hardened concrete properties and the results shown that the concrete with thirty – five percent of recycled concrete aggregate have good freeze – thaw resistance. The use of recycled concrete aggregate did not shown any noticeable increase in cracking. According to Grubl, Nealen and Schmidt (n.d.), there is a building project, the â€Å"Waldspirale† by Friedensreich Hundertwasser, made from concrete with recycled aggregate in Darmstadf from November 1998 to September 1999. Numerous tests were evaluated for freshly missed and also hardened concrete properties. The result shown that the consistency controlled method for concrete with recycled aggregate is applicable. And it leads to concrete of equal quality when compared with concrete made from natural aggregate. According to Regain (1993/94), recycled aggregate were used as capping and sub-base layers in housing development at North Bracknell, UK in 1993/94. Visual inspections and condition surveys were carried out by using the falling weight deflectometer in 1998. The result shown that the sections with recycled aggregate did not show any difference in appearance compared to the sections that using natural aggregate. The tests gave the larger values of elastic modulus in the recycled aggregate sections. According to Regain (2001), footway paving slabs are being replaced gradually in London Borough of Bexley. Recycled aggregate are used as coarse aggregate in the concrete mix with a 12:1 aggregate to cement mix Advantages There are many advantages through using the recycled aggregate. The advantages that occur through usage of recycled aggregate are listed below. Environmental Gain The major advantage is based on the environmental gain. According to CSIRO (n.d.), construction and demolition waste makes up to around 40% of the total waste each year (estimate around 14 million tones) going to land fill. Through recycled these material, it can keep diminishing the resources of urban aggregated. Therefore, natural aggregate can be used in higher –grade applications. Save Energy The recycling process can be done on site. According to Kajima Technical Research Institute (2002), Kajima is developing a method of recycling crushed concrete that used in the construction, known as the Within-Site Recycling System. Everything can be done on the construction site through this system, from the process of recycled aggregate, manufacture and use them. This can save energy to transport the recycled materials to the recycling plants. Cost Secondly is based on the cost. The cost of recycled aggregate is cheaper than virgin aggregate. According to PATH Technology Inventory (n.d.), the costs of recycled concrete aggregate are sold around $3.50 to $7.00 per cubic yard. It depends on the aggregate size limitation and local availability. This is just around one and half of the cost for natural aggregate that used in the construction works. The transportation cost for the recycled aggregate is reduced due to the weight of recycled aggregate is lighter than virgin aggregate. Concrete Network (n.d) stated that recycling concrete from the demolition projects can saves the costs of transporting the concrete to the land fill (around $0.25 per ton/ mile), and the cost of disposal (around $100 per ton). Beside that, Aggregate Advisory Service (n.d.) also state that the recycling site may accept the segregates materials at lower cost than landfill without tax levy and recycled aggregate can be used at lower prices than primary aggregate in the construction works. Job Opportunities There will be many people involved in this new technology, such as specialized and skilled persons, general workers, drivers and etc. According to Scottish Executive (2004), a Scottish Market Development Program is developed. The purpose of this program is to recycle the materials that arising in Scotland. This program will provide 150 new jobs in the Scottish industry. Sustainability The amount of waste materials used for landfill will be reducing through usage of recycled aggregate. This will reduce the amount of quarrying. Therefore this will extend the lives of natural resources and also extend the lives of sites that using for landfill. Market is Wide The markets for recycled concrete aggregate are wide. According to Environmental Council of Concrete Organization (n.d), recycled concrete aggregate can be used for sidewalk, curbs, bridge substructures and superstructures, concrete shoulders, residential driveways, general and structural fill. It also mentioned that recycled concrete aggregate can be used in sub bases and support layers such as unstabilized base and permeable bases. Disadvantages Although there are many advantages by using recycled aggregate. But there are still some disadvantages in recycled aggregate. Hard to have permit Jacobsen (1999) stated that it is hard to get the permit for the machinery that needed air permit or permit to operate during the recycling process. These has to depend on the local or state regulations whether this technology is implemented or not. Lack of Specification and Guidelines According to Kawano (n.d), there is no specification or any guideline when using recycled concrete aggregate in the constructions. In many cases, the strength characteristic will not meet the requirement when using recycled concrete aggregate. Therefore, more testing should be considered when using recycled concrete aggregate. Water Pollution The recycled process will cause water pollution. Morris of National Ready Mix Concrete Association (n.d) had mentioned that the wash out water with the high pH is a serious environmental issue. According to Building Green (1993), the alkalinity level of wash water from the recycling plants is pH12. This water is toxic to the fish and other aquatic life. Project Aim The aim for this on – going project is to determine the strength characteristic of recycled aggregate for application in high strength structural concrete, which will give a better understanding on the properties of concrete with recycled aggregate, where can be an alternative material to coarse aggregate in structural concrete. Project Scope Review and research of recycled aggregate. Construct the concrete specimens by using different percentage of recycled aggregate. Investigation and laboratory testing on high strength concrete with recycled aggregate. Analysis the results and recommendation for further research area. Dissertation Overview This dissertation is structured in the following format. Chapter 2 provides a review of relevant literature, overview of recycling process, as well as comparison of recycled aggregate and natural aggregate. This chapter also discussed the previous investigation and testing done with recycled aggregate. Chapter 3 includes the preliminary design and information on the recycled  aggregate testing and design of the concrete mix. Chapter 4 describes the experimental methodology carried out in order to obtain the required data. Chapter 5 discusses the results and analysis of all experimental results obtained from the testing procedures. Chapter 6 contains the conclusions of the research and recommendations on further work. Literature review of Recycled Aggregate Literature review of Recycled Aggregate Conventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones. However, there is a growing interest in substituting alternative aggregate materials, largely as a potential use for recycled materials. While there is significant research on many different materials for aggregate substitutes (such as granulated coal ash, blast furnace slag or various solid wastes including fiberglass waste materials, granulated plastics, paper and wood products / wastes, sintered sludge pellets and others), the only two that have been significantly applied are glass cullet and crushed recycled concrete itself. Even though aggregate typically accounts for 70% to 80% of the concrete volume, it is commonly thought of as inert filler having little effect on the finished concrete properties. However, research has shown that aggregate in fact plays a substantial role in determining workability, strength, dimensional stability, and durability of the concrete. Also, aggregates can have a significant effect on the cost of the concrete mixture. Certain aggregate parameters are known to be important for engineered-use concrete: hardness, strength, and durability. The aggregate must be clean, without absorbed chemicals, clay coatings, and other fine materials in concentrations that could alter the hydration and bond of the cement paste. It is important to note the difference between aggregate and cement, because some materials have found use both as a cementitious material and as aggregate (such as certain blast furnace slags). Materials that have been researched or applied only as cement substitutes are addressed in another Technology Inventory article Cement Substitutes. Aggregate composed of recycled concrete generally has a lower specific gravity and a higher absorption than conventional gravel aggregate. New concrete made with recycled concrete aggregate typically has good workability, durability and resistance to saturated freeze-thaw action. The compressive strength varies with the compressive strength of the original concrete and the water-cement ratio of the new concrete. It has been found that concrete made with recycled concrete aggregate has at least two-thirds the compressive strength and modulus of elasticity of natural aggregate concrete. Field-testing has shown that crushed and screened waste glass may be used as a sand substitute in concrete. Nearly all waste glass can be used in concrete applications, including glass that is unsuitable for uses such as glass bottle recycling. Some of the specific glass waste materials that have found use as fine aggregate are non-recyclable clear window glass and fluorescent bulbs with very small amounts of contaminants. Possible applications for such waste-glass concrete are bike paths, footpaths, gutters and similar non-structural work. Lack of widespread reliable data on aggregate substitutes can hinder its use. To design consistent, durable recycled aggregate concrete, more testing is required to account for variations in the aggregate properties. Also, recycled aggregate generally has a higher absorption and a lower specific gravity than conventional aggregate. Research has revealed that the 7-day and 28-day compressive strengths of recycled aggregate concrete are generally lower than values for conventional concrete. Moreover, recycled aggregates may be contaminated with residual quantities of sulfate from contact with sulfate rich soil and chloride ions from marine exposure. Glass aggregate in concrete can be problematic due to the alkali silica reaction between the cement paste and the glass aggregate, which over time can lead to weakened concrete and decreased long-term durability. Research has been done on types of glass and other additives to stop or decrease the alkali silica reaction and thereby maintain finished concrete strength. However, further research is still needed before glass cullet can be used in structural concrete applications. The applications of recycled aggregate in highway construction as a road base material are very board and have been in use for almost 100 years. There has been much research based on the use of recycled aggregate that has been carried out all around the world. The research on recycled aggregate that has been carried out indicated that the successful application of crushed aggregate in concrete can be achieved. This successful research has been achieved in many countries, in particular in Europe; United States; Japan and China. This chapter presents literature reviews on the effects of various factors on the recycled aggregate from research from those countries. The major objective of most of the experiments or research on recycled aggregate is to find out the results in the strength characteristic area and what is the best method to achieve high strength concrete with recycled aggregate. Strengths of Recycled Aggregate Concrete Made Using Field- Demolished Concrete as Aggregate Tavakoli M. (1996) studied the compressive; splitting tensile and flexural strengths of 100% recycled coarse aggregate concrete and 100% natural sand to compare them with normal concrete made of natural crushed stone. The water-cement ratio was 0.3 and 0.4 in the concrete mix design. The test result shows the compressive, tensile and flexural strengths of RCA are little higher than the natural aggregate at the same size of 25.4mm at 28-day specimen. This indicates that if the compressive strength of the original concrete that is being recycled is higher than that of the control concrete, then the recycled aggregate concrete can also be made to achieve higher compressive strength than the control concrete. The results also indicates increase L.A. abrasion loss and water absorption capacity of recycled aggregates, which partly reflect the increased amount of water, adhering to the original stone aggregate, generally lead to reduced compressive strength of recycled aggregate concrete. Dhir et al. (1998) studied the effect of the cleanliness and percentage of the replacement of RCA. They found out that the degree of cleanliness of aggregate has significantly affected on the results of the properties of both the plastic and hardened concrete. The workability and compressive strengths both were lower than the quarried aggregate from 17% to 78% depending on the percentage of replacement of RCA. The results also indicated recycled aggregate has very high air content. Limbachiya and Leelawat (2000) found that recycled concrete aggregate had 7 to 9% lower relative density and 2 times higher water absorption than natural aggregate. According to their test results, it shown that there was no effect with the replacement of 30% coarse recycled concrete aggregate used on the ceiling strength of concrete. It also mentioned that recycled concrete aggregate could be used in high strength concrete mixes with the recycled concrete aggregate content in the concrete. Sagoe, Brown and Taylor (2002) stated that the difference between the characteristic of fresh and hardened recycled aggregate concrete and natural aggregate concrete is relatively narrower than reported for laboratory crush recycled aggregate concrete mixes. There was no difference at the 5% significance level in concrete compressive and tensile strength of recycled concrete and control normal concrete made from natural aggregate. Limbachiya (2003) found that there is no effect by using up to 30% of coarse recycled concrete aggregate on the standard 100mm concrete cube compressive strength. But when the percentage of recycled concrete aggregate used increased, the compressive strength was reducing. Behavior of Construction and Demolition Debris in Base and Subbase Application Pappjr et al (1998) studied using recycled aggregates in Base and Subbase applications. They found that recycled concrete yielded higher resilient modulus than the dense graded aggregate currently used. Furthermore, the results have been shown that recycled concrete have less permanent deformation than dense graded aggregate. They concluded that recycled concrete could be a valuable alternative to natural materials for base and subbase applications. Influence of recycled aggregate quality on concrete properties Sanchez de Juan et al. (2000) studied what is the maximum percentage, from 20% to 100%, replacement of recycled aggregate in concrete. The results showed that the compressive strength of recycled concrete is lower than that of a control concrete with equal water/cement ratio and same cement content. Recycled concretes with a percentage of recycled coarse aggregate lower than 50% show decreases in the range 5-10%, while for concretes with 100% recycled aggregates, decreases ranged from 10-15%. Experimental results also indicated that properties of conventional concretes and recycled concretes with same compressive strength when less than 20% of recycled coarse aggregate are used. The exception being modulus of elasticity was decreased until 10% can be found in recycled concretes. When the percentage of recycled aggregate is lower than 50%, tensile strength and drying shrinkage of recycled concrete is similar to conventional concrete with same compressive strength. As a result of the testing, all properties of concrete with a 100% of recycled coarse aggregate are affected. Some studies on durability of recycled aggregate concrete Mandal et al. (2002) studied the durability of recycled aggregate concrete and found that recycled aggregate had less durability than natural aggregate. However, when 10 percent replacement of cement by fly ash was used with recycled aggregate, the durability observed was increased. It significantly improved the compressive strength up to 46.5MPa, reduced shrinkage and increased durability to a level comparable to natural aggregate. Therefore, the results of this study provide a strong support for the feasibility of using recycled aggregate instead of natural aggregate for the production of concrete. Use of recycled aggregates in molded concrete bricks and Blocks Poon et al. (2002) developed a technique to produce concrete bricks and paving blocks from recycled aggregates. The test result showed that replacing natural aggregate by 25% to 50% had little effect on the compressive strength, but higher levels of replacement reduced the compressive strength. The transverse strength increased as the percentage of recycled aggregate increased. The concrete paving blocks with a 28-day compressive strength of at least 49MPa can be produced without the incorporation of fly ash by using up to 100% recycled aggregate. According to the study, recycled aggregate has been used in structural engineering. For example, a viaduct and marine loch in the Netherlands in 1998 and an office building in England in 1999. The project in the Netherlands had shown that 20 percent of the coarse aggregate was replaced by recycled aggregate. The project also indicated even there are some disadvantage of recycled aggregate such as being too weak, more porous and that it has a very higher value of water absorption. However, the study showed that these weaknesses could be avoided by using mechanized moulded concrete bricks. The workability also could be improved by poring the mix into the mould. Therefore, the performance of the bricks and blocks was also satisfactory in the shrinkage and skid resistance tests. Concrete with Recycled materials as Coarse Aggregates: Shrinkage and Creep Behavior Tawrwe et al. (1999) compared limestone aggregate with concrete rubble. They found the concrete rubble had a very high water absorption compared to the limestone aggregate (0.74% against 6.83% of dry mass). Furthermore the porous aggregate absorbed water slowly in some tests. For example, it was difficult to determine accurately the amount of water that had to be added to obtain suitable workability. The critical shrinkage of the limestone aggregate concrete was higher than the concrete rubble, but after a year the shrinkage was greater for the concrete rubble based aggregate. Treatments for the improvement of recycled aggregate Katz (2004) stated two methods to improve the quality of the recycled aggregates. The superplasticizer (1% weight of silica fume) was added to the solution of 10L of water and 1 kg raw silica fume to ensure proper ispersion of silica fume particles. After the silica fume impregnation, the SF treatment seems to improve significantly the compressive strength up to 51MPa at ranged from 23% to 33% at 7 days of the recycled aggregate concrete. Ultrasonic cleaning of the recycled aggregate to remove the loose particles and improve the bond between the new cement paste and the recycled aggregate, which, in turn, increased 7% of strength. Kantawong and Laksana (1998) mentioned that the fineness modulus and percentage of water absorption used instead with the recycled aggregate is higher than natural aggregate. The results of compressive strength of added reduce water admixture concrete is higher than the one that not added reduce water admixture concrete, ane the compressive strength of concrete produced that using recycled aggregate is higher than concrete using natural coarse aggregate. Sawamoto and Takehino (2000) found that the strength of the recycled aggregate concrete can be increased by using Pozzolanic material that can absorb the water. Mandal (2002) stated that adjusted the water/cement ratio when using recycled concrete aggregate during the concrete mixing can improved the strength of the recycled aggregate concrete specimens. From the obtained result, recycled aggregate concrete specimens had the same engineering and durability performance when compared to the concrete specimens made by natural aggregate within 28days design strength. Chen and Kuan (2003) found that the strength of the concrete specimens was affected by the unwashed recycled aggregate in the concrete. The effect will more strange at the low water cement ratio. These effects can be improved by using the washed recycled aggregate. Construction and Demolition Waste Recycling Reuse as Aggregate in Concrete Production Limbachiya (2004) studied the properties of recycled aggregate compared with natural aggregates and found out the density of RCA is typically 4-8% lower and water absorption 2-6 times higher. The results showed that a reduction in slump value with increasing RCA concrete mix. The results also slowed that up to 30% coarse RCA has no effect on the standard concrete cube strength but thereafter a gradual reduction with increasing RCA content occurs. This means that some adjustment is necessary of the water/cement ratio to achieve the equivalent strength with high proportions of RCA. Review on Recycled Process This section discusses the recycling process and method. Recycling Plant Recycling plant normally located in the suburbs of cities due to the noise pollution that make by t Natural Recycling of Aggregate Natural Recycling of Aggregate Introduction For many years peoples have been trying to keep the environmental clean and mention the natural balance of life. The scientific studies provide us the information and methods to achieve these objectives and the recycling of waste and by product materials represent the main role in these studies [1-4]. As a result of reconstruction of existing buildings and pavements, wars and natural disasters such as earthquakes the amount of construction and demolition materials are increasing every year. At the same time approval of additional facilities for waste disposal or treatment are become more difficult to obtain. Furthermore increasing restrictive environmental regulations have made waste disposal more difficult and expensive. Also the available natural aggregate in some countries decreases and may be become insufficient for the construction projects in these countries in the future [5]. So, the reuse of construction and demolition materials in construction has benefits not only in reducing the amount of materials requiring disposal but also can provide construction materials with significant saving of the original materials. According to the third Building Waste Monitoring Report [6], there is an increase in the recorded amount of building waste in the sectors of the building debris, road scarification and building site waste. It has arisen in Germany by 11.5 million tons, from 77.1 million tons in the period 1997/1998 to 88.6 million tons in the period 1999/2000. According to Rahlwes and Schmidt [7, 8], for concrete only, the annual crushed concrete quantity in west Germany only is about 30 million tones and in the European Union is approximately 130 million ton. Due to intensive building activities in the last decades, these amounts are expected to considerably increase after the year 2000. The properties of recycled coarse aggregate with a grain size above 4 mm and its reuse in concrete production and pavements construction have been evaluated and described in many. It has been estimated that approximately 50 million tons of concrete are currently demolished each year in the European Economic Communities [1], Equivalent figures are 60 million tons in the United States ([2], [3]), and in Japan [12] the total quantity of concrete debris available for recycling on some scale is about 10 to 12 million tons. Very little demolished concrete is currently recycled or reused anywhere in the world. The small quantity which is recovered is mainly reused as unstabilized base or subbase in highway construction. The rest is dumped or disposed of as fill. For Environmental and other reasons the number of readily accessible disposal sites around major cities in the world has decreased in recent years. Both disposals volume and maximum sizes of wastes have been restricted. In Japan disposal charges from USD 3 to 10 per ton are not uncommon. Moreover, distances between demolition sites and disposal areas have become larger and transportation costs higher. At the same time critical shortages of good natural aggregate is developing in many urban areas, and distances between deposits of natural material and sites of new construction have grown larger, and transportation costs have become correspondingly higher, It is estimated that between now and year 2,000, three times more demolished concrete will be generated each year than is today. For these reasons it can be foreseen that demolition contractors will come under considerable economic and other pressure to process demolished concrete for reuse as unscreened gravel, base and subbase materials, aggregates for production of new concrete or for other useful purposes. Large-scale recycling of demolished concrete will contribute not only to the solution of a growing waste disposal problem. It will also help to conserve natural resources of sand and gravel and to secure future supply of reasonably priced aggregates for building and road construction purposes within large urban areas of the world. Applications of Recycled Aggregate The recycled concrete aggregate shown in Figure 1.1 can be defined as crushed concrete composed of aggregate fragments coated with cement paste or cement mortar from the demolition of the old structures or pavements that has been processed to produce aggregates suitable for use in new concrete. The processing, as with many natural aggregates, generally involves crushing, grading and washing. This removes contaminant materials such as reinforcing steel, remnants of formwork, gypsum board, and other foreign materials. The resulting coarse aggregate is then suitable for use in concrete. The fine aggregate, however, generally contains a considerable amount of old cement paste and mortar. This tends to increase the drying shrinkage and creep properties of the new concrete, as well as leading to problems with unworkable mix and strength. Therefore, many transportation departments have found that using 100% coarse recycled aggregate but with only about 10% to 20% recycled fines works well. Regarding the results of most of the previous research that has been done so far, the application of Recycled Aggregate is mostly currently in low quality/strength concrete, for example, pavement base and slab rather than used in structural concrete. The most common application of Recycled Concrete Aggregate is the use in concrete sub-base in road construction, bank protection, noise barriers and embankments, many types of general bulk fills and fill materials for drainage structures. After the removal of contaminants through selective demolition, screening, and/or air separation and size reduction in a crusher to aggregate sizes, crushed concrete can be used as new concrete for pavements, shoulders, median barriers, sidewalks, curbs and gutters, and bridge foundations; structural grade concrete; soil-cement pavement bases; moulded concrete bricks and blocks; bituminous concrete etc. However, there is an example of recycled concrete being used for part of the structural slabs in a high-rise building in Japan but there was no too much detail available on this project. According to research that has been conducted in Australia, current use of recycled aggregates is still only around 7% of road construction material in South Australia. Victoria Road also use recycled aggregate for their road base construction projects in Victoria but MainRoads in Queensland does not currently. Traditionally, the application of recycled aggregate is used as landfill. Nowadays, the applications of recycled aggregate in construction areas are wide. The applications are different from country to country. Concrete Kerb and Gutter Mix Recycled aggregate have been used as concrete kerb and gutter mix in Australia. According to Building Innovation Construction Technology (1999), Stone says that the 10mm recycled aggregate and blended recycled sand are used for concrete kerb and gutter mix in the Lent hall Street project in Sydney. Granular Base Course Materials According to Market Development Study for Recycled Aggregate Products (2001), recycled aggregate are used as granular base course in the road construction. It also stated that recycled aggregate had proved that better than natural aggregate when used as granular base course in roads construction. They also found that when the road is built on the wet sub grade areas, recycled aggregate will stabilize the base and provide an improved working surface for pavement structure construction. Embankment Fill Materials Market Development Study for Recycled Aggregate Products (2001) stated that recycled aggregate can be used in embankment fill. The reason for being able to use in embankment fill is same as it is used in granular base course construction. The embankment site is on the wet sub grade areas. Recycled aggregate can stabilize the base and provide an improved working surface for the remaining works. Paving Blocks Recycled aggregate have been used as paving blocks in Hong Kong. According to Hong Kong Housing Department (n.d.), recycled aggregate are used as typical paving blocks. A trial project had been started to test the long – term performance of paving blocks made with recycled aggregate in 2002. Backfill Materials Recycled aggregate can be used as backfill materials. Mehus and Lillestol (n.d) found that Norwegian Building Research Institute (n.d) mentioned that recycled concrete aggregate can be used as backfill materials in the pipe zone along trenches after having testing in laboratory. Building Blocks Recycled aggregate used as building blocks. Mehus and Lillestol (n.d) stated that Optiroc AS had used recycled aggregate to produce the masonry sound insulation blocks. The masonry sound insulation blocks that produced had met all the requirements during the laboratory testing. International Status Mehus and Lillestol (n.d.) stated that RESIBA had constructed a new high school in Sorumsand, outside the city of Oslo, Norway in 2001. Recycled concrete aggregate had been used in this project. Thirty – five percent of coarse aggregate were replaced by recycled concrete aggregate in the foundations, half of the basement walls and columns. Several tests were conducted based on fresh and hardened concrete properties and the results shown that the concrete with thirty – five percent of recycled concrete aggregate have good freeze – thaw resistance. The use of recycled concrete aggregate did not shown any noticeable increase in cracking. According to Grubl, Nealen and Schmidt (n.d.), there is a building project, the â€Å"Waldspirale† by Friedensreich Hundertwasser, made from concrete with recycled aggregate in Darmstadf from November 1998 to September 1999. Numerous tests were evaluated for freshly missed and also hardened concrete properties. The result shown that the consistency controlled method for concrete with recycled aggregate is applicable. And it leads to concrete of equal quality when compared with concrete made from natural aggregate. According to Regain (1993/94), recycled aggregate were used as capping and sub-base layers in housing development at North Bracknell, UK in 1993/94. Visual inspections and condition surveys were carried out by using the falling weight deflectometer in 1998. The result shown that the sections with recycled aggregate did not show any difference in appearance compared to the sections that using natural aggregate. The tests gave the larger values of elastic modulus in the recycled aggregate sections. According to Regain (2001), footway paving slabs are being replaced gradually in London Borough of Bexley. Recycled aggregate are used as coarse aggregate in the concrete mix with a 12:1 aggregate to cement mix Advantages There are many advantages through using the recycled aggregate. The advantages that occur through usage of recycled aggregate are listed below. Environmental Gain The major advantage is based on the environmental gain. According to CSIRO (n.d.), construction and demolition waste makes up to around 40% of the total waste each year (estimate around 14 million tones) going to land fill. Through recycled these material, it can keep diminishing the resources of urban aggregated. Therefore, natural aggregate can be used in higher –grade applications. Save Energy The recycling process can be done on site. According to Kajima Technical Research Institute (2002), Kajima is developing a method of recycling crushed concrete that used in the construction, known as the Within-Site Recycling System. Everything can be done on the construction site through this system, from the process of recycled aggregate, manufacture and use them. This can save energy to transport the recycled materials to the recycling plants. Cost Secondly is based on the cost. The cost of recycled aggregate is cheaper than virgin aggregate. According to PATH Technology Inventory (n.d.), the costs of recycled concrete aggregate are sold around $3.50 to $7.00 per cubic yard. It depends on the aggregate size limitation and local availability. This is just around one and half of the cost for natural aggregate that used in the construction works. The transportation cost for the recycled aggregate is reduced due to the weight of recycled aggregate is lighter than virgin aggregate. Concrete Network (n.d) stated that recycling concrete from the demolition projects can saves the costs of transporting the concrete to the land fill (around $0.25 per ton/ mile), and the cost of disposal (around $100 per ton). Beside that, Aggregate Advisory Service (n.d.) also state that the recycling site may accept the segregates materials at lower cost than landfill without tax levy and recycled aggregate can be used at lower prices than primary aggregate in the construction works. Job Opportunities There will be many people involved in this new technology, such as specialized and skilled persons, general workers, drivers and etc. According to Scottish Executive (2004), a Scottish Market Development Program is developed. The purpose of this program is to recycle the materials that arising in Scotland. This program will provide 150 new jobs in the Scottish industry. Sustainability The amount of waste materials used for landfill will be reducing through usage of recycled aggregate. This will reduce the amount of quarrying. Therefore this will extend the lives of natural resources and also extend the lives of sites that using for landfill. Market is Wide The markets for recycled concrete aggregate are wide. According to Environmental Council of Concrete Organization (n.d), recycled concrete aggregate can be used for sidewalk, curbs, bridge substructures and superstructures, concrete shoulders, residential driveways, general and structural fill. It also mentioned that recycled concrete aggregate can be used in sub bases and support layers such as unstabilized base and permeable bases. Disadvantages Although there are many advantages by using recycled aggregate. But there are still some disadvantages in recycled aggregate. Hard to have permit Jacobsen (1999) stated that it is hard to get the permit for the machinery that needed air permit or permit to operate during the recycling process. These has to depend on the local or state regulations whether this technology is implemented or not. Lack of Specification and Guidelines According to Kawano (n.d), there is no specification or any guideline when using recycled concrete aggregate in the constructions. In many cases, the strength characteristic will not meet the requirement when using recycled concrete aggregate. Therefore, more testing should be considered when using recycled concrete aggregate. Water Pollution The recycled process will cause water pollution. Morris of National Ready Mix Concrete Association (n.d) had mentioned that the wash out water with the high pH is a serious environmental issue. According to Building Green (1993), the alkalinity level of wash water from the recycling plants is pH12. This water is toxic to the fish and other aquatic life. Project Aim The aim for this on – going project is to determine the strength characteristic of recycled aggregate for application in high strength structural concrete, which will give a better understanding on the properties of concrete with recycled aggregate, where can be an alternative material to coarse aggregate in structural concrete. Project Scope Review and research of recycled aggregate. Construct the concrete specimens by using different percentage of recycled aggregate. Investigation and laboratory testing on high strength concrete with recycled aggregate. Analysis the results and recommendation for further research area. Dissertation Overview This dissertation is structured in the following format. Chapter 2 provides a review of relevant literature, overview of recycling process, as well as comparison of recycled aggregate and natural aggregate. This chapter also discussed the previous investigation and testing done with recycled aggregate. Chapter 3 includes the preliminary design and information on the recycled  aggregate testing and design of the concrete mix. Chapter 4 describes the experimental methodology carried out in order to obtain the required data. Chapter 5 discusses the results and analysis of all experimental results obtained from the testing procedures. Chapter 6 contains the conclusions of the research and recommendations on further work. Literature review of Recycled Aggregate Literature review of Recycled Aggregate Conventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones. However, there is a growing interest in substituting alternative aggregate materials, largely as a potential use for recycled materials. While there is significant research on many different materials for aggregate substitutes (such as granulated coal ash, blast furnace slag or various solid wastes including fiberglass waste materials, granulated plastics, paper and wood products / wastes, sintered sludge pellets and others), the only two that have been significantly applied are glass cullet and crushed recycled concrete itself. Even though aggregate typically accounts for 70% to 80% of the concrete volume, it is commonly thought of as inert filler having little effect on the finished concrete properties. However, research has shown that aggregate in fact plays a substantial role in determining workability, strength, dimensional stability, and durability of the concrete. Also, aggregates can have a significant effect on the cost of the concrete mixture. Certain aggregate parameters are known to be important for engineered-use concrete: hardness, strength, and durability. The aggregate must be clean, without absorbed chemicals, clay coatings, and other fine materials in concentrations that could alter the hydration and bond of the cement paste. It is important to note the difference between aggregate and cement, because some materials have found use both as a cementitious material and as aggregate (such as certain blast furnace slags). Materials that have been researched or applied only as cement substitutes are addressed in another Technology Inventory article Cement Substitutes. Aggregate composed of recycled concrete generally has a lower specific gravity and a higher absorption than conventional gravel aggregate. New concrete made with recycled concrete aggregate typically has good workability, durability and resistance to saturated freeze-thaw action. The compressive strength varies with the compressive strength of the original concrete and the water-cement ratio of the new concrete. It has been found that concrete made with recycled concrete aggregate has at least two-thirds the compressive strength and modulus of elasticity of natural aggregate concrete. Field-testing has shown that crushed and screened waste glass may be used as a sand substitute in concrete. Nearly all waste glass can be used in concrete applications, including glass that is unsuitable for uses such as glass bottle recycling. Some of the specific glass waste materials that have found use as fine aggregate are non-recyclable clear window glass and fluorescent bulbs with very small amounts of contaminants. Possible applications for such waste-glass concrete are bike paths, footpaths, gutters and similar non-structural work. Lack of widespread reliable data on aggregate substitutes can hinder its use. To design consistent, durable recycled aggregate concrete, more testing is required to account for variations in the aggregate properties. Also, recycled aggregate generally has a higher absorption and a lower specific gravity than conventional aggregate. Research has revealed that the 7-day and 28-day compressive strengths of recycled aggregate concrete are generally lower than values for conventional concrete. Moreover, recycled aggregates may be contaminated with residual quantities of sulfate from contact with sulfate rich soil and chloride ions from marine exposure. Glass aggregate in concrete can be problematic due to the alkali silica reaction between the cement paste and the glass aggregate, which over time can lead to weakened concrete and decreased long-term durability. Research has been done on types of glass and other additives to stop or decrease the alkali silica reaction and thereby maintain finished concrete strength. However, further research is still needed before glass cullet can be used in structural concrete applications. The applications of recycled aggregate in highway construction as a road base material are very board and have been in use for almost 100 years. There has been much research based on the use of recycled aggregate that has been carried out all around the world. The research on recycled aggregate that has been carried out indicated that the successful application of crushed aggregate in concrete can be achieved. This successful research has been achieved in many countries, in particular in Europe; United States; Japan and China. This chapter presents literature reviews on the effects of various factors on the recycled aggregate from research from those countries. The major objective of most of the experiments or research on recycled aggregate is to find out the results in the strength characteristic area and what is the best method to achieve high strength concrete with recycled aggregate. Strengths of Recycled Aggregate Concrete Made Using Field- Demolished Concrete as Aggregate Tavakoli M. (1996) studied the compressive; splitting tensile and flexural strengths of 100% recycled coarse aggregate concrete and 100% natural sand to compare them with normal concrete made of natural crushed stone. The water-cement ratio was 0.3 and 0.4 in the concrete mix design. The test result shows the compressive, tensile and flexural strengths of RCA are little higher than the natural aggregate at the same size of 25.4mm at 28-day specimen. This indicates that if the compressive strength of the original concrete that is being recycled is higher than that of the control concrete, then the recycled aggregate concrete can also be made to achieve higher compressive strength than the control concrete. The results also indicates increase L.A. abrasion loss and water absorption capacity of recycled aggregates, which partly reflect the increased amount of water, adhering to the original stone aggregate, generally lead to reduced compressive strength of recycled aggregate concrete. Dhir et al. (1998) studied the effect of the cleanliness and percentage of the replacement of RCA. They found out that the degree of cleanliness of aggregate has significantly affected on the results of the properties of both the plastic and hardened concrete. The workability and compressive strengths both were lower than the quarried aggregate from 17% to 78% depending on the percentage of replacement of RCA. The results also indicated recycled aggregate has very high air content. Limbachiya and Leelawat (2000) found that recycled concrete aggregate had 7 to 9% lower relative density and 2 times higher water absorption than natural aggregate. According to their test results, it shown that there was no effect with the replacement of 30% coarse recycled concrete aggregate used on the ceiling strength of concrete. It also mentioned that recycled concrete aggregate could be used in high strength concrete mixes with the recycled concrete aggregate content in the concrete. Sagoe, Brown and Taylor (2002) stated that the difference between the characteristic of fresh and hardened recycled aggregate concrete and natural aggregate concrete is relatively narrower than reported for laboratory crush recycled aggregate concrete mixes. There was no difference at the 5% significance level in concrete compressive and tensile strength of recycled concrete and control normal concrete made from natural aggregate. Limbachiya (2003) found that there is no effect by using up to 30% of coarse recycled concrete aggregate on the standard 100mm concrete cube compressive strength. But when the percentage of recycled concrete aggregate used increased, the compressive strength was reducing. Behavior of Construction and Demolition Debris in Base and Subbase Application Pappjr et al (1998) studied using recycled aggregates in Base and Subbase applications. They found that recycled concrete yielded higher resilient modulus than the dense graded aggregate currently used. Furthermore, the results have been shown that recycled concrete have less permanent deformation than dense graded aggregate. They concluded that recycled concrete could be a valuable alternative to natural materials for base and subbase applications. Influence of recycled aggregate quality on concrete properties Sanchez de Juan et al. (2000) studied what is the maximum percentage, from 20% to 100%, replacement of recycled aggregate in concrete. The results showed that the compressive strength of recycled concrete is lower than that of a control concrete with equal water/cement ratio and same cement content. Recycled concretes with a percentage of recycled coarse aggregate lower than 50% show decreases in the range 5-10%, while for concretes with 100% recycled aggregates, decreases ranged from 10-15%. Experimental results also indicated that properties of conventional concretes and recycled concretes with same compressive strength when less than 20% of recycled coarse aggregate are used. The exception being modulus of elasticity was decreased until 10% can be found in recycled concretes. When the percentage of recycled aggregate is lower than 50%, tensile strength and drying shrinkage of recycled concrete is similar to conventional concrete with same compressive strength. As a result of the testing, all properties of concrete with a 100% of recycled coarse aggregate are affected. Some studies on durability of recycled aggregate concrete Mandal et al. (2002) studied the durability of recycled aggregate concrete and found that recycled aggregate had less durability than natural aggregate. However, when 10 percent replacement of cement by fly ash was used with recycled aggregate, the durability observed was increased. It significantly improved the compressive strength up to 46.5MPa, reduced shrinkage and increased durability to a level comparable to natural aggregate. Therefore, the results of this study provide a strong support for the feasibility of using recycled aggregate instead of natural aggregate for the production of concrete. Use of recycled aggregates in molded concrete bricks and Blocks Poon et al. (2002) developed a technique to produce concrete bricks and paving blocks from recycled aggregates. The test result showed that replacing natural aggregate by 25% to 50% had little effect on the compressive strength, but higher levels of replacement reduced the compressive strength. The transverse strength increased as the percentage of recycled aggregate increased. The concrete paving blocks with a 28-day compressive strength of at least 49MPa can be produced without the incorporation of fly ash by using up to 100% recycled aggregate. According to the study, recycled aggregate has been used in structural engineering. For example, a viaduct and marine loch in the Netherlands in 1998 and an office building in England in 1999. The project in the Netherlands had shown that 20 percent of the coarse aggregate was replaced by recycled aggregate. The project also indicated even there are some disadvantage of recycled aggregate such as being too weak, more porous and that it has a very higher value of water absorption. However, the study showed that these weaknesses could be avoided by using mechanized moulded concrete bricks. The workability also could be improved by poring the mix into the mould. Therefore, the performance of the bricks and blocks was also satisfactory in the shrinkage and skid resistance tests. Concrete with Recycled materials as Coarse Aggregates: Shrinkage and Creep Behavior Tawrwe et al. (1999) compared limestone aggregate with concrete rubble. They found the concrete rubble had a very high water absorption compared to the limestone aggregate (0.74% against 6.83% of dry mass). Furthermore the porous aggregate absorbed water slowly in some tests. For example, it was difficult to determine accurately the amount of water that had to be added to obtain suitable workability. The critical shrinkage of the limestone aggregate concrete was higher than the concrete rubble, but after a year the shrinkage was greater for the concrete rubble based aggregate. Treatments for the improvement of recycled aggregate Katz (2004) stated two methods to improve the quality of the recycled aggregates. The superplasticizer (1% weight of silica fume) was added to the solution of 10L of water and 1 kg raw silica fume to ensure proper ispersion of silica fume particles. After the silica fume impregnation, the SF treatment seems to improve significantly the compressive strength up to 51MPa at ranged from 23% to 33% at 7 days of the recycled aggregate concrete. Ultrasonic cleaning of the recycled aggregate to remove the loose particles and improve the bond between the new cement paste and the recycled aggregate, which, in turn, increased 7% of strength. Kantawong and Laksana (1998) mentioned that the fineness modulus and percentage of water absorption used instead with the recycled aggregate is higher than natural aggregate. The results of compressive strength of added reduce water admixture concrete is higher than the one that not added reduce water admixture concrete, ane the compressive strength of concrete produced that using recycled aggregate is higher than concrete using natural coarse aggregate. Sawamoto and Takehino (2000) found that the strength of the recycled aggregate concrete can be increased by using Pozzolanic material that can absorb the water. Mandal (2002) stated that adjusted the water/cement ratio when using recycled concrete aggregate during the concrete mixing can improved the strength of the recycled aggregate concrete specimens. From the obtained result, recycled aggregate concrete specimens had the same engineering and durability performance when compared to the concrete specimens made by natural aggregate within 28days design strength. Chen and Kuan (2003) found that the strength of the concrete specimens was affected by the unwashed recycled aggregate in the concrete. The effect will more strange at the low water cement ratio. These effects can be improved by using the washed recycled aggregate. Construction and Demolition Waste Recycling Reuse as Aggregate in Concrete Production Limbachiya (2004) studied the properties of recycled aggregate compared with natural aggregates and found out the density of RCA is typically 4-8% lower and water absorption 2-6 times higher. The results showed that a reduction in slump value with increasing RCA concrete mix. The results also slowed that up to 30% coarse RCA has no effect on the standard concrete cube strength but thereafter a gradual reduction with increasing RCA content occurs. This means that some adjustment is necessary of the water/cement ratio to achieve the equivalent strength with high proportions of RCA. Review on Recycled Process This section discusses the recycling process and method. Recycling Plant Recycling plant normally located in the suburbs of cities due to the noise pollution that make by t

Making Fimo Beads :: Expository Process Essays

Making Fimo Beads The "Generation X" population of today's society has made the wearing of beaded necklaces containing fimo beads quite a fashion statement. These necklaces contain small, round, colored plastic beads and other intricate beads made out of different colored fimo. Fimo is a synthetic material similar to modeling clay, and can be used to make thousands on types of beads. These beads can then be incorporated into necklaces. However, to accurately describe the process of making this style of bead, a simple pattern will be used as an example. Specifically, the fimo example described will have a pattern with a small, yellow circular center surrounded by three small, green triangles and three small, red triangles. The following process will allow anyone without artistic ability to create a simple, inexpensive fimo bead that can later be used in stylish necklaces. The first step in the process involves taking a trip to a local craft store like, A. C. Moore, or a department store such as Wal*Mart, to buy the necessary supplies. For the example fimo bead, red, yellow, and green fimo must be purchased. To make a complete necklace, other colored plastic beads would have to be bought along with a spool of beading thread and a silver clasp. Also, a sharp flat-edged cutting tool (for example, a razor blade) and a thick, large pin will also be necessary tools in the final stages of the bead making process. Once the supplies are gathered, the bead making process is ready to begin. The fimo color that will make up the center circle in the bead (in this case, yellow) is the color that is first readied. A piece of fimo with the diameter of a quarter and the width of a pencil, is pinched off from the larger slab of fimo. It is then rubbed between both hands in a circular motion until it is warm and no longer cracks when folded in half. Then, from that small, primed piece of fimo, a smaller, nickel-sized piece is pinched and rolled on a flat surface. The fimo is rolled into a cylindrical log that is approximately three inches long. It is important to ensure that the log is not too thin, meaning it does not easily pull apart. Making Fimo Beads :: Expository Process Essays Making Fimo Beads The "Generation X" population of today's society has made the wearing of beaded necklaces containing fimo beads quite a fashion statement. These necklaces contain small, round, colored plastic beads and other intricate beads made out of different colored fimo. Fimo is a synthetic material similar to modeling clay, and can be used to make thousands on types of beads. These beads can then be incorporated into necklaces. However, to accurately describe the process of making this style of bead, a simple pattern will be used as an example. Specifically, the fimo example described will have a pattern with a small, yellow circular center surrounded by three small, green triangles and three small, red triangles. The following process will allow anyone without artistic ability to create a simple, inexpensive fimo bead that can later be used in stylish necklaces. The first step in the process involves taking a trip to a local craft store like, A. C. Moore, or a department store such as Wal*Mart, to buy the necessary supplies. For the example fimo bead, red, yellow, and green fimo must be purchased. To make a complete necklace, other colored plastic beads would have to be bought along with a spool of beading thread and a silver clasp. Also, a sharp flat-edged cutting tool (for example, a razor blade) and a thick, large pin will also be necessary tools in the final stages of the bead making process. Once the supplies are gathered, the bead making process is ready to begin. The fimo color that will make up the center circle in the bead (in this case, yellow) is the color that is first readied. A piece of fimo with the diameter of a quarter and the width of a pencil, is pinched off from the larger slab of fimo. It is then rubbed between both hands in a circular motion until it is warm and no longer cracks when folded in half. Then, from that small, primed piece of fimo, a smaller, nickel-sized piece is pinched and rolled on a flat surface. The fimo is rolled into a cylindrical log that is approximately three inches long. It is important to ensure that the log is not too thin, meaning it does not easily pull apart.

Lord of the Flies- What Is Evil and Where Does It Come from? Essay

Prompt: What is evil and where does it come from? Support your answer with Lord of the Flies and your own example. Two direct quotes needed: one for each body paragraph about Lord of the Flies. Where does evil come from? Was Lord of the Flies written to answer this question? William Golding wrote this spectacular story in 1954 to illustrate the concept of evil’s existence. The story is about several boys whose plane crashed because of a Soviet missile hit. The boys get stranded on an island and have to figure out how to survive. Each boy has his own personality and ideas on how to survive and get rescued. The group of boys start a fire to act as a signal for rescue. Unfortunately, the fire gets out of hand, and the chaos begins. Because the group of boys was hungry, one of the boys, Jack, decided to kill a pig. This led Jack to abandon his superego and to continue killing. It seems like the Beast entered Jack and the others, causing in them the thirst for blood. After several events that took place in the story, the boys were finally rescued by a naval officer from the Soviet Union. William Golding wrote this classic to deliver a moral message about the origins of evil. Evil is killing people for excitement and comes from ids within us, according to Lord of the Flies. William Golding shows that evil is within everyone and does not come from society. When Lord of the Flies/ the Beast gets into Simon’s head, Lord of the Flies says, â€Å" I am part of you† (Golding 142-143). Evil is speaking directly to Simon’s head and heart. This is an example of Simon’s conscience talking to him and evil trying to turn Simon into a savage like Jack. Society did not make Simon evil, it was the Beast who tried to get Simon to listen and become a savage. Evil is within everyone yet it is though society, creatures and people that evil is actually seen. â€Å"The Beast is harmless and horrible† (Golding 147). The Beast is horrible because it is not content with himself. Ralph is frightened because he thinks Simon’s murder was done on purpose (Golding 157). However, the Beast was not the one who committed Simon’s murder. It was Jack, Ralph, and the other boys on the island who murdered Simon. The Beast is not the one to blame, for Ralph had a choice whether to be a part of Simon’s death. Therefore, the Beast is blameless. Society does not generate evil in people and creatures. Evil is within us. The Bible clearly states in Genesis 3:3 that sin comes from within. In the book of Genesis, it had the story of Adam and Eve. God clearly said, â€Å"You must not eat from the Tree of Knowledge or you (Adam and Eve) will die† (Genesis 3:3). Adam had a choice whether to eat the forbidden fruit on the Tree of Knowledge. He chose to eat it. The serpent known as Satan deceived Adam and Eve and managed to trick them into eating the forbidden fruit. Adam was in control of his own actions. If he had not eaten that fruit, he would not have let sin into this world. Therefore, sin comes from within us. Evil is the feeling of enjoyment when killing someone or something and comes from our ids within us. The author clearly demonstrates in Lord of the Flies that evil is within everyone and does not come from society. Even though it can seem like society causes people and creatures to be evil, the fact is that evil comes from within every human being. It is clearly explained throughout the Bible the acts of sin are evil. Evil is within all of us whether we are morally corrupted by sin or we are tempted by society. Lord of the Flies definitely illustrated the concept of evil’s existence and that evil is within all of us.

Introduction To Revenue Management Tourism Essay Example

Introduction To Revenue Management Tourism Essay Example Introduction To Revenue Management Tourism Essay Introduction To Revenue Management Tourism Essay the conceiver to today s Revenue Management. American and other air hoses refined and extended their Output Management capablenesss during the early old ages of deregulating, finally giving them the ability monetary value every place on every flight for maximal value, selling low cost seats to price- sensitive travelers and high-cost seats to time-sensitive travellers. The impact and benefits of these accomplishments was apparent to all perceivers that, in late 1985, is recognized as American 48 % net incomes growing to gross growing of 14.5 % , while the low-priced rivals People s Express was shed blooding clients and hard currency. These fiscal consequences and overpowering competitory advantage attracted a batch of attending from a batch of industries. Cruise lines, auto leases companies and hotel companies started to measure the benefits of following Yield direction as a concern scheme. Early adoptive parents in the hotel infinite included Marriott International, Holiday Inns Worldwide ( now Intercontinental ) , Hilton Hotels Corporation and ITC Sheraton. ( Prism. Travel A ; leisure consulting ) ( Talluri A ; Van Ryzin, 2005 ) 3. REVENUE MANAGEMENT STRATEGIES Gross direction schemes consists of designation of clients sections and the constitution of merchandises targeted at those sections. Important component of gross direction which is followed by assorted hotels and air hoses is to split the client on the footing on either leisure client or concern client. This segregation helps the organisation to make a practical merchandise orientation towards different section. There are assorted gross schemes used by the organisation but the two chief categorization are as follows: Cost based Schemes Selling Schemes ( Cross, 1997 ) Cost Based Schemes: Cost and pricing based schemes is one of the simplest and concerned factors in an organisation because it consequences in pulling more figure of clients towards company therefore consequence in more gross gaining for the organisation. Most common scheme in this cost based scheme is cutting the monetary value of the merchandise and selling it on a higher monetary value. Merchandise cost is a really of import factor in an organisation. One of the of import strep that hotel has to take is to make the proper costing and at the same clip pricing as a manner of increasing gross is besides one of the most of import schemes that a hotel has to take. ( Cross, 1997 ) Marketing Based Schemes: Market is a topographic point where all the activities of exchange of goods and services take topographic point. Peoples ever want to cognize about the merchandise and services offered by the company or hotel. Selling schemes help the organisation to do programs for the hereafter and anticipate hereafter market conditions. This scheme assist the organisation to do the right determination at the right clip taking demand and supply into consideration and besides aid in cut downing the wastage of clip and money and the activities in selling. These schemes need assorted information and information sing the market before doing any schemes for e.g. demand of a peculiar merchandise, cancellation profitableness of a supply etc. ( Cross, 1997 ) Traditional Schemes: Booking Schemes: Booking schemes comes under marketing schemes of an organisation. Earlier the companies and organisation merely focused on giving on current engagements or booking which were already lying in the system. This is the ground why they did non take historic and future tendencies into consideration. These schemes were more of provider centric with accent on bring forthing lone gross and non concentrating on net income. As consequence of which these schemes used to take to gross loss. Example All the taking trade names of hotels earlier used to concentrate merely on the booking which they had with them in their system, instead than concentrating on future tactics of promoting and publication to increase the figure of engagements. Market Cleavage: It means spliting the market into sections. Markets are fundamentally divided in to two classs which are Business invitee and leisure invitee. Segmentation helps in spliting the penchants of the guest so that in can turn out to their satisfaction which might turn to their delightment and hence helps the organisation to increase their gross. Example: If there are two types of guest remaining in a hotel one time are concern invitee and the other is leisure invitee. Both of them will hold different demands like the concern invitee will demand for good Wi-Fi connectivity and the leisure invitee will demand for more luxury like soft bed, more pillows. So through this scheme we can segregate different penchants of different clients. Pricing Schemes: It s a cost based schemes. Hotels earlier followed a demand based pricing where pricing depends merely on the tenancy degrees of a peculiar hotel instead than other major factors which help in determing the most suited rate for a peculiar piece of concern. Example Assorted taking trade names of the hotels earlier used to repair their rates depending on their tenancy. This means if there is a season there monetary values will be high instead than concentrating on factors like what monetary values is offered by their rivals. Discounting: Discounting is cost based scheme. Dismissing refers to offering a peculiar merchandise to a invitee below its original monetary value. Traditionally assorted trade names of hotels used to supply price reduction, that is, selling a peculiar merchandise at a lesser monetary value instead than the fixed monetary value, it helps in pulling more figure of client. Example In a hotel if they are selling their suites at a lesser rate than the existent rate it will assist them in pulling more figure of invitees than the existent figure of people coming in their hotel because invitee will ever choose for best installations at lesser rate. Competitive Analysis: In a market scenario a hotel can a several figure of rivals It is a selling based scheme which means that if a hotel is given a room with a figure of installations at a fixed monetary value so the rival is besides giving the same figure of installations at a same monetary value or lesser monetary value. Example If Marriott hotel in a given metropolis is cut downing the room rate in order to pull more clients so the Taj and Oberoi group will besides follow the same tendency of cut downing the room rates. Marriott s so as to increase their clients and give tough competition and both the rivals will seek to market their merchandises by publicizing more selling strategies. ( Cross R. , 1997 ) ( Nagle A ; Hogan, 2006 ) Contemporary Schemes Channel Management schemes: In these type of schemes companies should track the channel through which they promote, advertises and their engagement comes into the hotel which can be either hotel s direct web site, direct hotel engagement or through 3rd party. This selling scheme helps to track the right channel and helps them in finding their selling spend for their channels. ( Nagle A ; Hogan, 2006 ) Examples If a hotel is acquiring maximal figure of booking through hotel s direct web site so hotel should put maximal sum of money in advertisement and advancing it s belongings through that channel instead than other channels. Entire Revenue Management Schemes: Gross direction can non merely be restricted to suites but can besides be applied to other sections of the hotels for e.g. eating house, watering place, retail mercantile establishment monetary values, feasts etc because now-a-days hotel industry is non restricted to suites merely there are other gross gaining sections excessively in the hotel. Example If we take the full Food N Beverage section, Banquets is the most gross gaining section therefore if more money is invested in this mercantile establishment it will assist in conveying batch of concern. Market Blending Scheme: With the altering tendencies, hotels now have realised the importance of marketing mix. Market commixture is the selling schemes which means look intoing what sort of patronage is coming into the hotel at what rate. It means a hotels need to understand what type of clientele prefers at that place hotel more and they should maintain the installations ready for that patronage in head. Example If a hotel gets more of concern patronages than luxury patronages, so the hotel must put more of gross on the installations which is suited for concern patronage. Bundling: Hotels now a yearss have other installations besides which are non to the full utilised therefore in order to use the full potency of those installations and increase the concern in those mercantile establishments. This make it hard for the invitee to find the monetary value of those extra installations provided. It is an cost based technique. Example Let s take a leisure invitee coming to Hotel Taj residence Aurangabad. Hotel in order to do concern added the service of take away packed nutrient and watering place in the bundle to be offered to the invitee. This will assist the hotel to do gross out of those installations and service as the invitees will non able to do out the existent monetary value of value added repasts and spa interventions. Rate fence Schemes: Hotels earlier used to follow a pricing technique based on what their rival is offering but now a twenty-four hours by using rate fence technique i.e. by bettering room trappings, free breakfast, airdrome choice up, better comfortss etc. Hotels let the guest choose the rate which is suited to them, as it helps them to pull more figure of client following a client centric scheme. Example If a invitee makes a reserve in the hotel and pays a reserve fee of Rs2500 and after few yearss he cancel the reserve so the hotel will cut a per centum of sum as per their recognition bound and non the full sum and the invitee will besides believe a just trade is done and he will prefer to come to the hotel which will assist in increasing the gross of the hotel. Up selling Scheme: Up merchandising is a Cost based Strategy followed by most of the taking trade name of hotels now a yearss. Up selling agencies offering the invitees a room of higher class and at the same point bear downing for the same unlike upgrading. This scheme helps in making more gross for the belongings and more avenues for guest satisfaction. This can be done either at the clip of booking or at the clip cheque in depending on the handiness of the class of suites. Example: If a household of four comes to the forepart desk and they have booked a room with one male monarch bed and pull-out sofa at that clip the forepart desk staff could up sell them to a higher class with two queen size bed and a pull out couch and bear downing for the same. 4. INFORMATION TECHNOLOGY Information engineering can be defined as the survey, design, application, execution, support or direction of computer-based information systems, peculiarly package and computing machine hardware. Information plays a really cardinal function in determination and scheme devising. Particularly sing cordial reception industry exchange of right information, at right clip and right clip helps in doing a batch of difference in determination and scheme devising. In earlier times people used to compose statements of their disbursals and general leger sheet manually but development of computing machines has changed the tendency. Particularly in hotel industry from the very clip of reserve till the client cheques out every minor item about the client is recorded and the information is available for the same. ( Information Technology in the Hospitality Industry ) Traditionally, hotels, most of which depends on the cards and paper system to maintain path of the invitees at their hotel. They had come mostly from understanding the demands of tourers and their ain attempts and staff to be prepared for possible overloading or long drouths of tenancy. The first country in which information engineering has become of import in footings of the dealing. Antique paper accounting was slow and inefficient, and could non state the proprietor of the hotel its current place. Fortunately, progresss in engineering help the proprietor to cognize the current place and what they have on manus, how much of it they have, and state you how much it costs. Most hotels trade names are familiar with booking suites and reserve over the phones, but information engineering has expanded beyond that. Hotels now-a-days can take reserve through assorted on-line travel companies and booking services to hold their suites booked online, with no demand to use expensive staff. This besides allows a hotel to publicize their unfastened suites and particular trades straight to the individual who is interested in purchasing them, alternatively of blowing batch of money advertisement in an unfocused mode. Better information engineering allows hotel for better agreement and direction of engagements in order to let a hotel to maximise tenancy and besides to cognize when the big groups and thin times are nearing. This allows a director o make necessary agreements sing impermanent staff, good times to restitute or spread out, or other concerns because h/she can find the conditions of the hotel presently and for the following few months with merely a few chin ks on the computing machine. ( Information Technology in the Hospitality Industry ) ( Shekhar, 2008 ) Choosing the right type of system is most of import for any hotel organisation. Most of the hotel organisation usage package which is made for hotels merely which are by and large called Property Management System ( PMS ) . PMS comprise of both front terminal and back terminal operation. Choosing the right system requires expertise and knowledge about the hotel operations. Normally, all systems comes with room division- with front office systems and housekeeping faculty, nutrient and drink division- with point of sale and back terminal system- with Accounting, Inventory, Human Resources. It s non necessary for the full hotels to hold this expensive computing machine system. Many large operations require assorted interfacing such as Telephone, Internet, Interactive Television, door lockup system, Yield direction, Global distribution system, Visa/Master card etc. All these can be automated through Property Management Systems in an efficient and effectual manner. This reduces non merely the adult male power, besides reduces errors when handled manually. ( Shekhar, 2008 ) A GDS may be defined as a computerised reserve system easing the sale of cordial reception merchandises and services chiefly to organisational purchasers such as travel agents. The four major planetary distribution systems today are Sabre, Galileo, Amadeus and universe span.. The larger cordial reception suppliers like concatenation of hotels, auto leases, bet oning operations are connected to each GDS through an expensive nexus or interface. The travel agent straight contacts the stock list provider via GDS and smaller agents who ca nt afford such a big disbursal connect through a switch to the GDS. A switch is defined as a individual electronic connexion through which a cordial reception suppliers must go through through before being connected to the GDS. Most people summon up the images of an on-line travel site such as Expedia, Orbitz or Travelocity when they think of booking any travel constituent over the cyberspace. These online travel sites are referred to as third- party web sites. They serve as mediators. The electronic pattern that facilitates purchase of cordial reception merchandises and services by client is referred to as Internet Distribution systems ( IDS ) . ( Tranter, Hill-Stuart, A ; Parker, 2009 ) 5. Review ON STRATEGIES Traditional Booking Schemes: Booking Schemes are non favorable for an organisation as it concentrated merely on gross non the net income. Therefore lead to gross loss. These schemes did nt let the hotels to concentrate on other ways and methods to advance and publicize their belongings. Thus it bound the heads of the executives merely to gross gaining. Pricing schemes: These schemes followed a demand based policies. They ever followed the tenancy rates to repair the monetary values pretermiting other of import factors. These types of schemes where non wide plenty to cover the full spectrum cost factor. No-Preference Scheme: These schemes followed merely one regulation of first come foremost serve . But these schemes have a large disadvantage of giving no penchant to it loyal and regular clients who must hold lead to negligence feel in a client s head. Discounting: Selling the merchandise at lower rates which attracts more figure of clients makes this scheme really of import as it makes easy for the client to easy afford those products.. Competitive Analysis: These schemes created humdrum in the market as the hotels used to follow the same tendencies and used to offer same sort of installations to the invitees. This prevents the invitee to see something different even though have passing powers. Contemporary Channel Management Schemes: These schemes help the hotel, organisation and house to investing in the right channel to acquire maximal gross gaining in return. This is most appropriate scheme harmonizing to me a hotel should follow to maximise its gross earning. Entire Revenue Management: These schemes help the hotel to concentrate on gross gaining from other beginnings besides as gross direction is non restricted to room merely. Now yearss there are assorted other installations besides provided by the hotels to pull invitees like shopping Centre, Spa and other retail mercantile establishment. Thus it helps in catching more figure of clients at one time. Market Blending schemes: It helps the hotel to happen out what type of patronage prefers their belongings more. Thus it helps to heighten their service in their bulk of the patronage by supplying assorted other installations and services which are good and utile for patronage. Bundling Schemes: Not all belongingss can pull clients to their extra installations and services. Thus these schemes help the hotels to better the capablenesss of its extra on services. This can be done in several ways by adding these services in bundle being given to the invitee as it will be difficult for the invitee to find the single monetary value. Rate Fencing schemes: These schemes follow simple tendency of giving something excess to invitees which in any instance is loved by the invitees. These simple schemes helps in pulling more of invitees therefore is really good for an organisation, hotel or a house. Up merchandising: These Schemes can merely be possible if the hotel staff if convincing plenty to inquire the guest to pay more. If there is a stiff invitees he/she might non be convinced by the staff therefore in that instance it is non possible. Thus staff members should hold good and clear communicating accomplishments and converting powers. 6. FUTURE TRENDS IN REVENUE MANAGEMENT In future gross direction will be used to heighten the capablenesss of gross direction professionals. There will be more of focal point on entire gross direction alternatively of room gross. There will be more of publicities and heavy discounting ensuing in 3rd party channels wars. Hoteliers will be able to do record and analyze societal platforms as a critical constituent of gross direction leveraging the bid of tools that assists in pull offing the sites of consumer reappraisal and other forums. Automated gross direction engineering will go the chief tool which can ensue in addition in the gross and the return on investing for those who will follow it. More attending on guest satisfaction. Schemes will be more clients centric. In future the gross direction will compromise of a development of the information as an plus which help in doing determination in future. 7. Case STUDY: La Costa Golf Resort and Spa Caught between the stones above the ocean is a nailing continuously with its narrow green tattered flag windswept relentless. Just behind the 18th Hole Clubhouse is the picturesque golf class, people merely name the drops. It is located in San Diego ( U.S.A ) . Hole 19 is a saloon where invitees can hold traditional drinks accompanied by the olfactory property of all right Cognac, cigars and a wood fire. There are some installations which attracts batch of people are as follows: ( Tranter, Hill-Stuart, A ; Parker, 2009 ) Physical Facilities 18 holes of golf along the ocean seashore Driving Scope The class is received for members merely on the weekend and unfastened to the populace on Monday through Thursday Clubhouse with eating house, tavern, leases, and the retail ware. Indoor event infinite and lasting outdoor collapsible shelter Golf carts with planetary placement system on board Full-service watering place Barber store and salon Media room Golf clinic with video recording of swing and seting techniques Servicess Breakfast Lunch Dinner On-course drink and bite carts Cocktails Saturday- flushing societal events Providing Event-planning services Full scope of watering place merchandises and services Haircutting and titling Golf ware runing from nines to places Golf cart lease Golf lessons Video analysis of swing and seting public presentation Time period used for analysis September and October. Booking Pace and pattern In the hebdomad for the hebdomad for members, within the month for weekday tee times made by the general populace, three to six months for tourneies and corporate groups. Channelss presently used Clubhouse telephone and web sites, direct mail to members, publicizing in country publications, one-year spread in Golf Digest with tear out information card, links with local hotels and touristry organisation. Monetary values Per 18 hole unit of ammunition of golf: Annual Membership: $ 75,000 yearly and $ 25 per members per unit of ammunition. Corporate Membership: $ 150,000 yearly and $ 45 per employees per unit of ammunition. Non-members: Quartets before midday and after 5 Autopsy: $ 360 ; Noon: $ 24. Cart lease included with rank. Non-member fee $ 15 per twenty-four hours. Lessons and picture analysis: $ 65 per hr Club Leases: $ 35 per twenty-four hours. It is hard, if non impossible, to acquire a tee clip before 11 AM during the summer. Play slows down a spot in the autumn, with significantly more tee times available early in the hebdomad. This is a popular class of carry oning concern and many of the local corporations maintain corporate ranks. Visitors to the neighbouring hotels and resorts are able to buy unit of ammunition of golf within a resort and diversion bundles sold by both the belongingss and collapsible shelter is popular topographic point for marrying responses and household reunions. Seventy per centum of the golf players playing the class are work forces over the age of 40. ( Tranter, Hill-Stuart, A ; Parker, 2009 ) Possible Schemes: The nine needs to switch the extra demand to the less busy tee times in the center of the twenty-four hours. Particular inducements could be offered during the weekdays in the autumn and price reductions could be offered midday twelvemonth unit of ammunition to local occupants. The scheme here is to switch demand to slower clip periods. The tactics are to offer inducements or price reductions in the local market. The nine needs to capture more of adult females participants. Possibly get down a conference on Sunday or adding ladies apparel in the pro-shop, supplying women- merely golf clinics and offering mid-afternoons refreshments on the patio. The nine can besides make a green tea bundle uniting a unit of ammunition of golf with a intervention at the watering place. The nine needs to increase its gaining control of both leisure and concern travelers remaining at local hotels. It should plan a more attractive bundle and increase its committee to the local hotels and resorts to bring on the forepart office and gross revenues sections to sell more bundles. The scheme here is to increase gaining control of sing golf players. The maneuver here is to make and sharply market bundles with the local hotels and resorts. It is clip for the nine to get down beging new members. One manner to pull golf players is to offer discounted golf lessons and clinics to local high schools and colleges. The nine can patronize local school golf squad to derive acknowledgment in the community. And it could develop a junior golf conference. Strategy here is to pull local and immature golf players. Tacticss included is to supply discounted golf lessons and clinics, patronizing a local golf school nine and developing a junior golf conference. The catering sections need to happen new beginnings of meetings and event concern during the hebdomad. It may make one-year autumn tourney. It should offer Sunday brunch to the groups its marrying response grosss on its extremum summer day of the months. The scheme here is to increase the gross of catering section. The tactic include adding a autumn golf tourney, making a Sunday brunch for persons and groups and optimising grosss from summer nuptialss. 8. Review Possible Consequences: In the first case, allow s presume that the nine turns off merely two groups each forenoon due to miss of early forenoon tee times. If it were able to capture these groups by offering extra inducements for a noon unit of ammunition of golf on Monday through Thursdays in September and October, this would ensue in important addition in gross. In the 2nd case, if the beginning of the season of the adult females s golf conference attracted merely four quartets, two of which were composed of members and two of which were composed of non-members, this would bring forth extra grosss per twenty-four hours of $ 920 during peak golf clip and $ 860 during non peak times. Multiply that by 5 months of golf ( about 20 hebdomads ) and this conference would bring forth extra grosss of $ 18,400 golfing during peak hours or $ 13,600 golfing during noon hours. Offering a green tea golf and spa bundle would drive extra adult females s into the nine for an afternoon of golf, watering place, interventions, and company. One bundle for non-members quartet could be priced at $ 599 with a noon tee clip. The same could be priced for member at $ 399 per individual. If merely 10 bundles sold per hebdomad, five at each monetary value, this would bring forth an extra $ 4990 per hebdomad, $ 19,960 per month and $ 99,800 over the 20 hebdomads golf season. In this instance, allow s presume that the golf nine offers the hotels and resorts a committee of $ 25 for each golf bundle sold. Some belongingss permit the clerk and gross revenues individual selling the bundle to retain $ 25 as a fillip. If all the local hotels or resorts combined to sell merely one peak clip bundle six twenty-four hours per hebdomad ( Saturdays are normally booked ) and one noon box each twenty-four hours of the hebdomad, that represents an extra 13 packager per hebdomad. Using non-member monetary values, the six peak clip bundles would bring forth $ 2,160 per hebdomad and noon bundle would bring forth $ 1,680 per hebdomad. Combined, this is $ 3,840 per hebdomad. Removing the committee paid to the hotel and this still represents an extra $ 3,190 in gross per hebdomad. Multiply that with 20 hebdomads and the bundle generates $ 63,800 in gross per season to the nine. If we double the gross at least $ 125,000 per season. In the 4th scenario, adolescents and schools are normally a spot hapless for hard currency. The nine should cut down its rates for junior conference golf players. These younger golf players have more staying powers and seen to boom in the heat, so all junior conference would take topographic point in the noon during the hebdomad. If these unit of ammunitions are priced at 50 % off the noon fee of $ 240, each unit of ammunition of the golf would be $ 120 or merely $ 30 per participant for non-members. So eight unit of ammunitions peers to $ 960 per hebdomad and multiplying $ 960 with 20 hebdomads would bring forth $ 19,200 to the nine. The cost to bring forth each participant is $ 1000 with 75 % fees traveling to charity and other 255 traveling to club for tournament operations. So the enrollment fees would bring forth $ 12000 as tonss of people registries. Out of which $ 9000 would travel for charity and $ 3000 would travel to the nine. If 500 tickets are sold each twenty-four hours for two yearss it will bring forth an extra $ 25000 each for the charity and the nine. If we look at the possible grosss that may be generated by a Sunday brunch. Bruch would be priced at $ 28.75 per individual and nine house will function 160 screens per Sunday. This will bring forth $ 4,600 in grosss. But if we add 56 screens from private group brunches held in the 10 that would add up to $ 6,210 per