Mechanical Properties and Statistical Damage Constitutive Model of Rock under a Coupled Chemical-Mechanical Condition

Table 5

Parameters of sandstone treated with different chemical corrosion (30 MPa).

Chemical environment	(MPa)		E (GPa)			(%)	(%)
H2SO4 solution	144.14	0.0151	12.99	2.4275	188.4859	5.08	10.76	0.0598	0.78
Distilled water	166.47	0.0162	13.70	2.7855	222.4475	5.14	5.94	0.0084	0.80
NaOH solution	151.27	0.0154	13.30	2.6737	201.4039	5.07	8.64	0.0376	0.82
Natural state	170.86	0.0165	13.81	2.8038	230.2525	5.11	5.11	0	0.81