Properties and Engineering Applications of a New Goaf Grouting Filling Material

Table 8

Cost analysis table.

No.	Grouting amount/m^3	Raw material type and component unit price					Cost
		Cement	Fly ash	Sodium silicate	Ethylene glycol	Adipic acid
		400.0 RMB/t	180.0 RMB/t	1200.0 RMB/t	4.5 RMB/kg	6.0 RMB/kg	RMB
4	1	232.40		264.00			496.40
20	1	66.00	69.30	264.00			399.30
31	1	75.60	50.94	120.00	9.40	18.54	274.48
34	1	50.00	52.38	160.80	12.15	24.00	299.33

Note: Pure cement slurry density  g/cm³; cement-fly ash slurry density  g/cm³. Pure sodium silicate density  g/cm³; modified sodium silicate density  g/cm³.