Choose the CORRECT option (s) that talks about properties of hardened concrete.
1. Strength of normal concrete varies between 25 MPa and 40 MPa
2. The denser the concrete the lesser its performance and greater the durability
3. Extremely resistant to physio-chemical attack
1
1 & 2 statements
2
2 & 3 statements
3
1 & 3 statements
4
1, 2 & 3 statements