Damage Features of Altered Rock Subjected to Drying-Wetting Cycles

Table 5

Triaxial compression data.

Rock	Cycles	Cohesion (MPa)			Internal friction angle (°)
		Different pH values			Different pH values
		2	4	7	2	4	7
Beresitization granoclastic	0	13.35	13.35	13.35	27.26	27.26	27.26
	1	10.17	11.56	12.39	23.56	25.12	26.66
	5	7.02	7.94	9.54	22.53	23.17	24.22
	8	5.56	6.55	8.62	21.46	22.15	23.79
	15	4.64	5.47	6.44	19.45	20.27	21.33
	20	3.01	3.66	4.06	17.69	18.27	19.51
Beresitization granite	0	9.19	9.19	9.19	50.01	50.01	50.01
	1	6.94	8.03	8.51	45.02	46.34	47.89
	5	5.56	6.96	7.01	41.78	43.96	45.02
	8	3.12	5.02	5.94	40.68	42.04	43.19
	15	2.10	2.91	3.59	38.57	40.11	42.01
	20	1.67	2.00	2.81	37.94	39.57	41.34