I. Introduction Aggregates contribute to 60-80% of a concrete mix‚ with water and cement being the other major constituents. Therefore considerable testing and consideration should be placed on aggregate type and size to ensure an adequate concrete mix. Two tests have been performed to establish the properties of the aggregates: 1. Compacted bulk density test 2. Sieve analysis II Testing For Compacted Bulk Density Objectives * To determine the specific bulk densities of a range
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ijcrb.webs.com SEPTEMBER 2011 VOL 3‚ NO 5 INTERDISCIPLINARY JOURNAL OF CONTEMPORARY RESEARCH IN BUSINESS Porter Five Forces Analysis of Pakistan Mobiles Communication Limited (Mobilink): A Critical Approach Akhtar Munir Retail Sales Officer in Mobilink. Afnan Khan Saddozai Management Trainee Officer in National Bank of Pakistan Dr.Bakhtiar khattak Chairman: Department of Business Administration‚ Gomal University‚ D‚I.Khan Dr.Shumaila Hashim Lecturer: Dept of Bus.Administration‚ Gomal University
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Porter’s five forces analysis of the Personal Computer (PC) industry In his article “The five competitive forces that shape strategy“‚ Michael Porter (2008) updates and extends his “five forces” framework he first introduced in 1979 and which has influenced the academic and business research for decades. He reaffirms that “THREAT OF ENTRY”‚ “THE POWER OF SUPPLIERS”‚ “THE POWER OF BUYERS”‚ THE THREAT OF SUBSTITUTES”‚ and “RIVALRY AMONG EXISTING COMPETITORS” are the forces that shape every
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The European Airline industry has gone through a lot in the past century since the establishment of the first public airline after the World War I. Until a few decades ago most of these airlines were national and at least partially state owned‚ and most of the European countries had at least one‚ with direct government control. Significant change in this only came in the 1990’s with the appearance of the low cost airlines. While the business model existed for some time (first such in 1973 US)‚ the
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Concrete is a composite construction material composed primarily of aggregate‚ cement‚ and water. There are many formulations‚ which provide varied properties. The aggregate is generally a coarse gravel or crushed rocks such as limestone‚ or granite‚ along with a fine aggregate such as sand. The cement‚ commonly Portland cement‚ and other cementitious materials such as fly ash and slag cement‚ serve as a binder for the aggregate. Various chemical admixtures are also added to achieve varied properties
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PROPERTIES OF ( FINE AND COARSE ) AGGREGATES ? REPORT Aggregates are defined as a combination of distinct parts gathered into a mass or a whole. They can increase stability of a structure and protect it from bad weather. In addition‚ aggregates can also increase quality and reduce price of the cements beacause of their greater volume stability and filling function. Therefore‚ it is important for civil engineers to understand properties of aggregates. Aggregates’ properties are the characteristics
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of Concrete and their Sustainability Concrete was first made with fragments of stone or sand mixed with cementatous materials and water. Concrete has changed over the many years and today it is made with basically the same materials‚ but the main differences between concrete when it was first made and now‚ is the concretes strength and that it is produced in larger amounts. Some of the different types are: • Reinforced concrete • Prestressed concrete • Pre-cast concrete • Concrete Masonry
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Testing of Aggregates for Concrete Pesith Chan xxxxxxxx Xavier Cure 10440269 1. Sampling of Aggregates for Testing 1. Sampling of aggregates - General Quality control tests are routinely carried out on representative samples of aggregates to ensure that any variation in quality is within the specification limits. The need for representative samples cannot be over-stressed; otherwise the test results may misrepresent the characteristics of the aggregates. Sampling operations
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The twelve year return-on-equity data for the Tobacco Industry of 27.9% is substantially above the all-industry average of 14.1% given in the Business Week data. Examining Porters five forces reveals the keys to the Tobacco industries superior profit performance. The price customers are willing to pay for a product depends‚ in part‚ on the availability of substitutes. The absence of close substitutes in the case of cigarettes means that consumers are comparatively insensitive to price increases
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Coursework 1: Aggregate testing This report was an investigation into different standard testing methods used for aggregates; Sieve Analysis‚ Moisture Content Determination and Determination of Voids Content and Density. The experiments precisely verified that the aggregates complied with British Standards. Contents page Test 1: Sieve Analysis “Large” coarse aggregate “Small” coarse aggregate Fine aggregates Observation Test 2: Moisture Content “Small” coarse aggregate Fine aggregate
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