Flexural strength of M 25 concrete is ______
| Flexural strength of M 25 concrete is ______
A. 25 N/mm<sup>2</sup>
B. 8.33 N/mm<sup>2</sup>
C. 6.25 N/mm<sup>2</sup>
D. 3.5 N/mm<sup>2</sup>
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Right Answer is: D
SOLUTION
Flexural strength of concrete/ Bending tensile strength of concrete/Modulus of rupture of concrete (fcr) is given by
\({f_{cr}} = 0.7\;\sqrt {25} = 3.5\;N/m{m^2}\; = 3.5MPa\)