Experimental Study of Macro- and Micro-Scopic Damage in Red Sandstone under Dry and Wet Cycling

<div>SEM images for the surfaces of red sandstone after different dry–wet cycle number: (a) <i>n</i> = 0; (b) <i>n</i> = 5; (c) <i>n</i> = 10; (d) <i>n</i> = 15; and (e) <i>n</i> = 25.</div>

Advances in Civil Engineering

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Figure 7

Figure 7: Experimental Study of Macro- and Micro-Scopic Damage in Red Sandstone under Dry and Wet Cycling 