Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 3 (Q.No. 1)
Permissible compressive strength of M 150 concrete grade is
100 kg/cm2
150 kg/cm2
200 kg/cm2
250 kg/cm2
300 kg/cm2
Answer: Option
No answer description is available. Let's discuss.
27 comments Page 2 of 3.

Rajesh thakur said:   7 years ago
The correct answer is 150 as per SSC JE answer key.

P.Uday Teja Reddy said:   7 years ago
The answer should be option B.

Shiv said:   7 years ago
I think it is 150.

Agree @Bharath.

Bharath E said:   7 years ago
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.

Rupali said:   7 years ago
Please tell me the correct answer.

Manoranjan said:   7 years ago
150kg/cm^2 is the correct answer.

Suman preet said:   7 years ago
150kg/cm2 is the correct answer.

Nirav Bhalani said:   7 years ago
Please explain the answer.

Sonu said:   8 years ago
Please explain this question?

Sandeep said:   8 years ago
Please explain this question?

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