Question

The modulus of rupture of concrete in terms of its characteristic cube compressive strength $\left(f_{ck}\right)$ in MPa according to IS : 456 - 2000 is

• A.
  5000 $f_{ck}$
• B.
  0.7 $f_{ck}$
• C.
  5000 $\sqrt{f_{ck}}$
• D.
  0.7$\sqrt{f_{ck}}$

Answer 1

The correct option is D

0.7$\sqrt{f_{ck}}$
According to IS : 456 : 2000, Modulus of rupture
$=0.7\sqrt{f_{ck}}$