Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration

Table 1

Chemical composition (wt.%) and physical property of MT, BFS, and FA.

	SiO2	Al2O3	MgO	CaO	Fe2O3	Na2O	K2O	BET surface area (m^2/kg)
MT	69.55	12.63	0.33	0.69	0.87	1.98	3.13	356.1
BFS	34.60	12.11	9.23	39.52	0.11	0.35	0.19	935.5
FA	54.79	23.57	1.12	3.17	0.03	0.31	1.12	757.5