Permeability Evolution and Particle Size Distribution of Saturated Crushed Sandstone under Compression

Table 2

The mass percent of the rock particles in each diameter range of the saturated crushed sandstone with under variable axial stresses.

Axial stress (MPa)	Mass percent in each diameter range (%)
	0–2.5 mm	2.5–5 mm	5–8 mm	8–10 mm	10–12 mm	12–15 mm
0	0	23.21	24.89	15.52	14.91	21.47
2	15.94	16.34	25.35	12.67	14.03	15.67
4	21.23	15.03	28.40	13.20	10.70	11.44
8	27.88	13.45	26.71	10.63	11.68	9.65
12	30.87	15.25	23.29	11.17	10.62	8.81
16	33.71	12.44	26.37	10.09	9.65	7.75