Fig. 14

Comparison of different BS specimens under the same confining stress. (a) Confining stress of 1Â MPa, (b) Confining stress of 0.5Â MPa, (c) Confining stress of 1.5Â MPa.

Comparison of different BS specimens under the same confining stress. (a) Confining stress of 1Â MPa, (b) Confining stress of 0.5Â MPa, (c) Confining stress of 1.5Â MPa.