Civil Engineering - Concrete Technology - Discussion

I think 150 kg/cm^2 is correct.

The correct answer is 150 as per SSC JE answer key.

The answer should be option B.

I think it is 150.

Agree @Bharath.

It is 150 kg/cm^2 only. Option B is correct. Don't confuse between permissible and ultimate strength.

If we design the mix for M150 grade means permissible will be 150kg/cm^2 only. Sometimes during testing due to some variations strength decreases for ex.130 or 135kg/cm^2 or 200kg/cm^2 even if we designed for M150 grade concrete. But we designed for M150 means we must conclude the answer to be 150kg/cm^2 irrespective of what ever we obtained.

In SCC sometimes permissible strength varies due to trail and error Mix design methods,but here they didn't mention anything as SCC(Self Compacting Concrete)
Finally, option B is correct.

Hope this will clear the confusion.

Please tell me the correct answer.

150kg/cm^2 is the correct answer.

150kg/cm2 is the correct answer.

Please explain the answer.

Please explain this question?