Dynamic Compression Properties and Deterioration of Red-Sandstone Subject to Cyclic Wet-Dry Treatment

Table 2

Index properties variation of red-sandstone subjected to different wet-dry cycles.

W-D cycles	Dried density		P-wave velocity		Static UCS
	After (g/cm^3)	Variation (%)	After (m/s)	Variation (%)	After (MPa)	Variation (%)
0	2478.0	0.00	2598.2	0.00	74.4	0.0
5	2438.2	−1.61	2350.0	−9.55	69.3	−6.85
10	2408.6	−2.80	2180.4	−16.08	67.1	−9.81
15	2396.7	−3.28	2020.3	−22.24	64.7	−13.04
20	2388.4	−3.62	1950.5	−24.93	60.8	−18.28