Suggest the minimum grade of concrete for following exposure condition. i) RCC work ii) Water retaining structure iii) Sea water construction iv) Pre-stressed concrete

Suggest the minimum grade of concrete for following exposure condition. i) RCC work ii) Water retaining structure iii) Sea water construction iv) Pre-stressed concrete
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1 Answer

Answer :

Minimum grade of concrete for following exposure condition:

i) RCC work = M 20

ii) Water retaining structure = M 25

iii) Sea water construction = M 20 for PCC and M 30 for RCC

iv) Pre-stressed concrete = M 30
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