What is the value of flexural strength of M 25 concrete?

4.0 MPa

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3.5 MPa

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3.0 MPa

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1.75 MPa

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Solution

The correct option is B 3.5 MPa
As per $IS 456 : 2000$ (clause 6.2.2)
Flexure strength of concrete
$f_{c r} = 0.7 \sqrt{f_{c k}} N / m m^{2} = 3.5 N / m m^{2}$

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