Discussion :: Concrete Technology - Section 4 (Q.No.47)
: 3| 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. |
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| 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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