. 2022 Feb 21;15(4):1613. doi: 10.3390/ma15041613

Table 2.

Mechanical parameters of Na₂SO₄ corroded sandstone (σ₃ = 10 MPa).

Na₂SO₄		Peak Strength σ_pk (MPa)	Peak Strain ε_pk (%)	Elasticity Modulus E (GPa)	Poisson’s Ratio µ
pH	2	115.71	0.7351	16.07	0.371
	4	125.73	0.7746	16.71	0.342
	6	138.96	0.8542	17.42	0.314
	7	146.83	0.8654	17.98	0.293
	8	144.81	0.8391	17.73	0.302
	10	135.38	0.7944	17.05	0.327
	12	124.57	0.7532	16.49	0.346
α (mol·L⁻¹)	0.02	115.71	0.7351	16.07	0.371
	0.04	112.14	0.7264	15.87	0.378
	0.06	101.62	0.7073	15.44	0.386
	0.08	97.04	0.6648	15.03	0.392
	0.10	86.54	0.6197	14.37	0.415