Q. |
For the construction of the retaining structures, the type of concrete mix to be used, is |
A. | 1 : 3 : 6 |
B. | 1 : 2 : 4 |
C. | 1 : 1½ : 3 |
D. | 1 : 4 : 8 |
Answer» C. 1 : 1½ : 3 |
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