Grouting Fractured Coal Permeability Evolution Based on Industrial CT Scanning

Table 1

Proportioning scheme of water-solid ratio.

Water-solid ratio	Mass of coal powder (g)	Curing agent (g)	Expansive agent (g)	Water (g)
0.5	500	2	400	451
0.8	500	2	400	721.6
0.9	500	2	400	811.8
1	500	2	400	902
1.5	500	2	400	1353
2	500	2	400	1804