Fig. 16

Comparison of the same BS specimens of different concrete strength classes. (a) Strength increases of 10Â MPa, (b) Strength increases of 20Â MPa, (c) Strength increases of 30Â MPa.

Comparison of the same BS specimens of different concrete strength classes. (a) Strength increases of 10Â MPa, (b) Strength increases of 20Â MPa, (c) Strength increases of 30Â MPa.