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

Table 2

Regression results of peak axial strain versus confining pressures of sandstone treated with different chemical corrosions.

Chemical environment			Correlative coefficients	RMSE
H2SO4 solution		0.01010	0.995
NaOH solution		0.00959	0.995
Distilled water		0.00947	0.971
Natural state		0.00919	0.987