Table 1: Basic physical parameters determined.

Confining pressures, σ3 (MPa)Bulk modulus, K (MPa)Shear modulus, G (MPa)

1.0505.1440.2
2.01133.1514.9
4.02104.7642.2
5.02531.1694.7
6.03244.2739.7
8.04116.2807.6
10.04898.1845.9
14.05329.2833.4
16.05455.5782.7