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Structural Design Specifications

Q1: The grade of reinforced concrete to be used in sea water or structures exposed to sea water should be

A M 10

B M 15

C M 20

D M 30

ANS:C - M 20

IS 456 1978 PCC m 15 and RCC m20 in seawater.

IS 456 2000 PCC m20 and RCC m30 in seawater.

Here no specify IS code 1978 or 2000 so the answer is correct.



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