Mesoscopic Freeze-Thaw Damage Evolution Characteristics of Fractured Sandstone at Different Saturations

Table 1

Rock sample numbers and basic parameters.

Sample number	Initial saturation (%)	Dry density (g/cm^3)	Porosity (%)	P-wave velocity (m/s)
A	60	2.175	12.67	2577
B	70	2.206	12.66	2688
C	80	2.231	12.65	2577
D	90	2.189	12.53	2525
E	100	2.211	12.50	2525