ABSTRACT Concrete has been the most preferred construction material for over five decades. It is being increasing day to day all over the world due to its versatility‚ mould ability‚ high compressive strength and many more advantages. For several years beginning in 1983‚ the problem of the durability of the concrete structures was a major topic of interest in Japan. The creation of durable concrete structures requires adequate compaction by skilled workers. One solution for the achievement of durable
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Date | 16 April 2013 | Page No. | 1 | Title: Standard Operating Procedures of Making a Concrete Block. | Department/ Unit: | This Standard Operating Procedures has been done by Department of Production and Manufacturing of Concrete Block | Purpose: | The purpose of this Standard Operating Procedures of making a concrete block is to provide instructions in order to manufacture a concrete block. | Who can perform this SOP: | Skilled worker technician. | Equipment/ Tools Needed:
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placed between the two BS 5400 results‚ or close to the lower values. The Eurocode 2 results were usually reasonably close to the mean of the other results. The CEB-FIP-1990 results were consistently the lowest for high steel stresses and high concrete cover values. Results with varying spacing were close to Eurocode 2 results. The ACI 318 results were consistently the highest‚ being close to and
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Abul Kalam Azad‚ and Mohammed Abdul Hameed A STUDY OF SELF-COMPACTING CONCRETE MADE WITH MARGINAL AGGREGATES Shamsad Ahmad∗‚ Abul Kalam Azad‚ and Mohammed Abdul Hameed Department of Civil Engineering King Fahd University of Petroleum & Minerals Dhahran‚ Saudi Arabia 1. INTRODUCTION Self-compacting concrete (SCC)‚ developed first in Japan in the late 1980s‚ represents one of the most significant advances in concrete technology in the last two decades. SCC was developed to ensure adequate compaction
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Reflective model In this report I am going to evaluate the difference between Gibbs (1988) and Kolb (1984)‚ drawing primarily on Gibbs’s reflective model. The Kolb cycle 1984 was published before Gibbs 1988‚ David A. Kolb published his conception after an experimental test on a book “Experience as the Source of learning and development” while Gibbs published his theory by developing on the existing Kolb cycle (ehow[07/10/2014]). Kolb’s theory is based on 4 cycles. It starts with doing something
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Corrosion of reinforced concrete Contents 1. Introduction 3 2. Corrosion 3 2.1 Chloride attack 4 2.2 Carbonation 5 3. Minimising corrosion 6 3.1 Metallic coatings 6 3.2 Cathodic protection 7 3.3 Other solutions 8 4. Conclusion 8 References 10 List of Figures 2.1 Chloride attack on reinforced concrete…………………………………………....4 2.2 Carbonation attack of RC due to poor concrete cover…………………………….5 3.1 How impressed current cathodic protection stops corrosion ……………………
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Engineering B45 Concrete Lab Report Introduction: Concrete is a mixture of sand and rock or similar inert material (aggregates) held together by a cementing material. Usually the cementing material is Portland cement‚ but sometimes binders such as asphalt or gypsum are used‚ in which case the concrete may be called asphaltic concrete or gypsum concrete. Properties of concrete are governed not only by the properties of its ingredients (cement‚ water‚ sand‚ and coarse aggregate) but also‚ to a great
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MECHANICAL COMPACTION OF CONCRETE: A GOVERENING FACTOR FOR DURABILITY AND SERVICEABILITY OF THE CONCRETE Ranchhod Mata1‚ Prof. Jayeshkumar Pitroda2‚ Prof. J. J. Bhavsar3 1Student of first year M.E (C.E & M)‚ B.V.M Engineering College‚ Vallabh Vidyanagar 2Assistant Professor and Research Scholar‚ Civil Engineering Department‚ B.V.M. Engineering College‚ Vallabh Vidyanagar-Gujarat-India 3Associate Professor and PG Coordinator (M.E C E & M)‚ Civil Engineering Department‚ B.V.M. Engineering College
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single-dwelling occupancies D. impact-resistant gypsum board is easily differentiated from regular gypsum board 7. Which of the following is MOST likely to contribute to rapid structural failure in a wood-frame dwelling? A. gypsum board interior walls B. concrete basement floor C. plywood subfloor covered with carpet D.
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introduction of concrete as a construction medium and the true arch as a structural component made it possible for the Romans to build strong‚ elaborate‚ expansive structures that would endure the test of time. Concrete Roman concrete‚ called opus caementicium‚ was made by mixing traditional lime mortar with stone aggregate called caementa. This material used less water and was very thick compared to modern concrete; therefore it was laid rather than poured (Roman Architecture‚ n.d.). Concrete was an important
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