Study on Solidification Characteristics of Granular Coal Gangue: Fine Sand Paste-Cemented Filling Materials

Table 5

Consumption per unit volume of filling material.

Group number	Mass fraction; (ω) (%)	Aggregate cement ratio (α)	Gangue–sand ratio (β)	Material consumption per unit volume (kg‧m^−3)
				Coal gangue	Fine sand	Cement	Water
Group 1	86	3.5 : 1	3 : 7	440	1,026	419	307
	84			418	975	398	341
	82			397	927	378	374
Group 2	86	3.5 : 1	5 : 5	735	735	420	308
	84			698	698	399	342
	82			664	664	379	375
Group 3	86	3.5 : 1	7 : 3	1,031	442	421	308
	84			980	420	400	343
	82			931	399	380	375