Damage Characteristics of Sandstone Subjected to Coupled Effect of Freezing-Thawing Cycles and Acid Environment

Figure 2

Figures of rock samples immersed in solution with different pH for a time-span of 40 F-T cycles but did not undergo any F-T cycles. (a) pH 2.8, (b) pH 4.2, (c) pH 5.6, and (d) pH 7.0.

(a)

(b)

(c)

(d)