Answer / sunil chauhan

Due to thermal expansion

Answer / nazar ahamed

Concrete is good is compression strength and steel is good is tensile strength, the combination of both materials will give the better strength and flexibility

Answer / sandeep punwatkar

steel can withstand high tensile stresses as compared to other material and concrete is very good in compression but very weak in taking tension.

Answer / jagan_srinivasan2002@yahoo.co.

1)Steel has good tensile stress
2)it will develop the good bond streets with concrete
3)Modulus of elacticy is high

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