Experimental Study on the Damage and Degradation Characteristics of Red Sandstone after Dry and Wet Cycling by Low Magnetic Field Nuclear Magnetic Resonance (NMR) Technique

Table 1

Changes of porosity after wet and dry cycle.

Number/time	0	1	3	6	10
Porosity/%	9.527	9.490	10.930	10.968	11.317
	9.841	9.437	9.627	9.787	9.646
Average	9.684	9.464	10.279	10.378	10.482