Discussion :: Concrete Technology - Section 4 (Q.No.47)
Sudip said: (Dec 3, 2016) | |
For retaining structures, a/c to IS456, M20 grade is recommended. That means option C is the correct answer. |
Koushik Das said: (May 29, 2019) | |
It is M25. |
Palash said: (Aug 6, 2019) | |
Yes, M20 - for general retaining structure. M25 - for water retaining structure. |
Animesh Mondal said: (Jun 25, 2020) | |
I agree C is the correct answer. |
Ajay Kumar Yadav said: (May 16, 2022) | |
Options C is correct because min grade used for construction is M20. |
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