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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Asphalt versus Concrete Driveways –Your Edmonton Concrete Pros Discuss What to Consider The choice to go with concrete or asphalt for your driveway involves a variety of factors. You will need to consider details such as your present budget‚ how much you want to spend over the long term‚ and your desired aesthetics for the finished product. The pros at Osco Mudjacking & Shotcreting Ltd. are always happy to help you with your projects and concerns. We can assist you in determining what kind of
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Prestressed concrete construction Prestressed concrete Prestressed concrete is a method for overcoming concrete’s natural weakness in tension. It can be used to produce beams‚ floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that balances the tensile stress that the concrete compression member would otherwise
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Foam concrete advantages Foam Concrete is normal concrete with bubbles of air inside. Therefore it has the same characteristics with many additional advantages. CLC (foam concrete) blocks are used for building cottages‚ wall insulation in multistory buildings and internal partitions. Also CLC can be produced and poured for floors and roofs on-site. In roofs it can be used because of very good insulating and lightweight. For floors CLC offers faster installation and a less expensive option because
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Alliance Concrete Case Analysis Executive Summary: This report provides an analysis and evaluation of the current and forecasted profitability‚ liquidity and financial stability of Alliance Concrete. Methods of analysis include forecasting the income statement and balance sheet to calculate financial ratios and profitability ratios. The key drivers for the income statement was management’s assumption about the sales environment surrounding Alliance Concrete. All calculations can be found on the
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Study on Ready-Mix Concrete with Survey and Experiments in the Context of Bangladesh A. S. M. Fahad Hossain1. Dr. Md. Mahmudur Rahman2. Abstract : The research study conducted here is focused on the ready mix concrete (RMC) in the context of Bangladesh. At present time ready mix concrete (RMC) is a very important subject of interest. In foreign countries most of the construction work is carried out by ready mix concrete. In the present study‚ it was tried to find out the condition of ready mix
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“PROBLEMS IN READY MIX CONCRETE” A PROJECT REPORT Submitted by MISTRY UMANG 100393106006 VARSHA RAJPUT 100393106001 In fulfilment for the award of the degree of BACHELOR OF ENGINEERING in Civil Engineering S.P.B. Patel Engineering College‚ Mehsana Gujarat Technological University‚ Ahmedabad December‚ 2012 CERTIFICATE Date: This is to certify that the dissertation entitled “PROBLEMS IN READY MIX CONCRETE” has been carried out by MISTRY
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Consolidation of plastic concrete is termed as compaction. In the process of compaction‚ efforts are only directed to reduce the voids in the compacted concrete. Compaction of concrete can be done either manually or mechanically. When it is done manually it is called hand compaction or tamping‚ and in second case it is termed as machine compaction. Hand compaction: Hand compaction is done with the help of steel tamping rods‚ or timber screeds. Marrow and deep members are compacted with tamping
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POLYMER COCNCRETE 1. Introduction Despite being thought of as a modern material‚ concrete has been in use for hundreds of years. The word concrete comes from the Latin concretus‚ which means “mixed together” or compounded. Concrete is an extremely popular structural material due to its low cost and easy fabrication. Concrete is made up of sand or stone‚ known as aggregate‚ combined with cement paste to bind it. Aggregate can be of various sizes. It is broadly categorized as fine (commonly
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pdf Multi-Level Formwork Load Distribution with Post-Tensioned Slabs By Dr Stephen L Kajewski1 Abstract: Formwork and the associated shoring represent a significant proportion of the costs associated with the construction of multi-level concrete structures. To minimize these costs‚ a limited number of formwork and shoring sets are recycled up the structure as construction progresses‚ eliminating the need for a new set of formwork and shoring with each new slab. When a slab is post-tensioned
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