Among the following select high-strength concrete as per IS 456.
1 M 60
2. M 65
3. M 55
4. M 80
1
1, 2, 3, and 4 is correct
2
2, and 4 is correct
3
1 and 2 is correct
4
only 3 is correct
Among the following select high-strength concrete as per IS 456.
1 M 60
2. M 65
3. M 55
4. M 80