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

Figure 3

Figures of rock samples immersed in solution with pH of 2.8 and underwent different F-T cycles. (a) 10 cycles, (b) 20 cycles, (c) 30 cycles, and (d) 40 cycles.

(a)

(b)

(c)

(d)