Contents 1. Introduction 2 2. Concrete attacks 2 3. Alkali-Silica Reaction – ASR 3 4. Sulphate Attack 5 5. Reference List 8 1. Introduction This report was issued in order to provide an in depth understanding of how a surveyor can differentiate between Alkali-Silica Reaction and Sulphate attacks in concrete when inspecting a building. In order to satisfy the requirements for this report‚ the author will give a detailed description of both kind of attacks‚ different study areas
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Investigation of carbonation profiles of a 60 years old carbonated concrete specimens subjected to re-alkalization M.O. Mohsen1‚* 1 College of Engineering‚ Qatar University‚ P.O. Box 2713‚ Doha‚ Qatar Re-alkalization method is an electrochemical treatment which is commonly used to repair carbonated concrete elements. This method prevents further reinforcement corrosion by increasing the PH of the element which results in maintaining the reinforcement passivation. In this paper‚ the re-alkalization
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globalization in the construction of buildings and other structures. Concrete is the premier construction material across the world and the most widely used in all types of civil engineering works‚ including infrastructure‚ low and high-rise buildings‚ defense installations‚ environment protection and local/domestic developments (Parekh and Modhera‚ 2011). Aggregates is one of the constituents used in the production of conventional concrete and has become highly expensive and also scarce. The growing environmental
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Reinforced concrete is a strong‚ durable material that can be formed in too many varied shapes and sizes ranging from a simple rectangle column‚ to a slender curved dome or shell‚ its utility and versatility are achieved by combining the best features of concrete and steel. Its utility and versatility is achieved by combining the best features of concrete and steel. When combined‚ the steel is able to provide the tensile strength and probably some of the shear strength while the concrete‚ strong in
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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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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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Musique Concrete Music has existed since the beginning of time‚ evolving and changing with the times and culture. From monks chanting to the Beatles in the 1960’s‚ there is a long line of the evolution of music. The existence of musique concrete was another step in the world’s music history. But before going any further perhaps the definition of musique concrete should be specified. “ Musique concrete is the name given to a class of electronic music produced from editing together fragments of
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Mixture proportioning: Procedures outlined in ACI 211.1 should be used for mixture proportioning. Typical proportions for heavyweight concrete are shown in Table 2. MATERIALS : Cement Cements conforming to ASTM C 150‚ which would be suitable for conventional concrete and produce the required physical properties‚ are suitable for use in heavyweight concrete. Aggregate Thorough examination and evaluation of heavyweight aggregate sources are necessary to obtain material suitable for the type
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Question: Find out types of building masonry - brick‚ stone‚ marble‚ granite‚ travertine‚ concrete blocks & glass block. Find out the difference‚ benefit and bad points of reinforced concrete‚ prestressed concrete and precast concrete. Answer: 1) Masonry is basically materials that are made up of brick‚ stone‚ marble‚ granite ‚ traventine‚ concrete blocks‚ glass blocks are stacked up one by one together by mortar to make walls. They are also called masonry units. There are
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on-site concrete aggravating. Bags of cement‚ sand‚ aggregate and possibly other additives must be delivered to the construction area. A supply of clean water is also necessary‚ along with a rented concrete mixing hopper. Even after all the dusty and heavy ingredients have been loaded into the hopper‚ there may occur the problem of erroneous water-cement ratio. One common solution to this messy and time-consuming problem is “READYMIX CONCRETE”. 1.1 Readymix Concrete Ready-mix concrete (RMC) is
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