Study of the Influence of Clay Minerals on the Mechanical and Percolation Properties of Weakly Cemented Rocks

Table 3

Mechanical characteristic parameters of weakly cemented rock samples.

The clay mineral proportions S(%)	20	30	40	50	60
Peak stress (MPa)	13.683	11.662	8.991	7.272	5.438
Initial stress of crack development (MPa)	5.725	8.826	6.796	4.262	3.742
Rapid crack propagation stress (MPa)	11.526	10.732	8.124	6.638	5.291
Peak strain (%)	0.707	0.763	0.876	0.731	0.586
Elastic module (GPa)	2.788	2.247	1.633	1.343	1.079