Civil Engineering MCQAE Level Civil Engineering

In M40 concrete, the number 40 denotes

RCCPYQ/PYQ-PatternMEDIUM

Choose the correct answer

A

Cement content of 40 kg/m³

B

Mean tensile strength of 40 MPa

C

Characteristic compressive strength of 40 MPa at 28 days

D

Slump of 40 mm

Correct Answer

C. Characteristic compressive strength of 40 MPa at 28 days

Why is this the answer?

Concrete grade number denotes 28-day characteristic compressive strength in MPa.

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