According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as________?
AEc = where fck N/mm2 = 700 is the characteristic strength in
BEc = = 570
CEc = = 5700fck
DEc = = 5700
Correct answer
D. Ec = = 5700
Explanation
The correct answer is Ec = = 5700.