Research Article
Experimental Study of Macro- and Micro-Scopic Damage in Red Sandstone under Dry and Wet Cycling
Table 1
Main physical and hydraulic properties parameters of rock samples.
| | Formation lithology | Natural density, ρ (g/cm3) | Dry density, ρd (g/cm3) | Saturated density, ρw (g/cm3) | Saturated water absorption, Wsa (%) | Natural water absorption, Wa (%) | Natural moisture content, W (%) | Saturation coefficient, Ks |
| | Purple-red sandstone | 2.34 | 2.32 | 2.43 | 3.85 | 2.47 | 0.61 | 0.64 |
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