Q. The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less than (Solved)
1. 7 MN/m2
2. 11.5 MN/m2
3. 17.5 MN/m2
4. 21 MN/m2
- b. 11.5 MN/m2
1. 7 MN/m2
2. 11.5 MN/m2
3. 17.5 MN/m2
4. 21 MN/m2