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QuestionWhich category of bars reinforcement are more corrosion resistant, epoxy-coated bars, stainless steel bars, galvanized bars?
AnswerSupported on experiment conducted by Building Research Establishment, it was exposed that corrosion resistance of galvanized steel was worst between the three sort of bar reinforcement. In case of galvanized steel bars, corrosion started to happen while certain chloride content in concrete for example 0.4% by cement weight was exceeded. Though, for epoxy-coated bars, they extended time occupied for cracking to occur while compared with galvanized steel bars. Best corrosion resistant reinforcement between all is stainless steel. In exacting, austenitic stainless steel stayed uncorroded even there was chloride contamination in the experiment.
Resultant Force on a Given Area of a Horizontal Plane By equation, the total vertical force applied to an area A on the plane is: Resultant Force R = ΡA = (lb/ft 2 )(ft 2 )
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A machine weighing 500 kN is mounted on a concrete block resting on soil. The base area of the block is 25 m 2 , and the weight is 100 kN. The coefficient of elastic uniform com
Question In designing of service reservoirs, how should reservoir floors be designed to avoid leakage of water because of seasonal and shrinkage movements ? Answer I
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A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum size shovel that will excavate 450,000 bcy of common earth in a minimum of 120 working day
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