Research Article

Experimental Study on Physicomechanical Properties of Sandstone under Acidic Environment

Figure 12

SEM images of the sandstone samples attacked by pH = 1 H2SO4 solution. (a) Natural sandstone sample. Soaking in pH = 1 sulfuric acid solution for (b) 30 days and (c) 90 days.
(a)
(b)
(c)