Civil Engineering MCQAE Level Civil Engineering
As per IS 456:2000, for an isolated footing in mild exposure condition, the minimum grade of concrete to be used is:
RCCGrade of Concrete FoundationMEDIUM
Choose the correct answer
A
M10
B
M15
C
M20
D
M25
Correct Answer
C. M20
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IS 456:2000 Table 5 (Cl. 6.1.2): Minimum grade for reinforced concrete in mild exposure = M20. For plain concrete in footings, M15 may be used, but reinforced concrete footings require M20.
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