1.

In modulus of elasticity of insitu concrete of grade M20 will be about ___________

A. 25kn/mm<sup>2</sup>
B. 30kn/mm<sup>2</sup>
C. 35kn/mm<sup>2</sup>
D. 40kn/mm<sup>2</sup>
Answer» B. 30kn/mm<sup>2</sup>


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