Experimental Study on Mechanical Properties of Freeze-Thaw Damaged Red Sandstone under Combined Dynamic and Static Loading

Table 1

Physical indexes of samples with different freeze and thaw cycles.

Cycle of freeze and thaw	Dry density (g/cm^3)	Wave velocity of dry samples (m/s)	Saturated water absorption rate (%)
0	2.53	3248	2.53
10	2.52	2889	2.55
20	2.50	2598	2.87
30	2.48	2494	3.03