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Iron or steel is used in reinforcement in concrete because

(a) Concrete has higher coefficient of expansion than iron or steel .\[\](b) Concrete has lower coefficient of expansion than iron or steel .\[\](c) both have nearly equal coefficients of expansion .\[\](d) both are good conductors of heat .
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Answer : both have nearly equal coefficients of expansion .
Iron or steel is used in reinforcement in concrete because - both have nearly equal coefficients of expansion .
answered Apr 13, 2014 by yamini.v
 

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