The Effect of Calcium Formate, Sodium Sulfate, and Cement Clinker on Engineering Properties of Fly Ash-Based Cemented Tailings Backfill

Table 3

The mix proportions of CTB mixtures.

Designation	Cement	Fly ash	Tailings	Binder-to-tailing ratio	Water	Solid content (wt.%)	Activator percentage in binder (wt.%)
							Calcium formate	Sodium sulfate	Cement clinker
CF4%	0.52	0.48	8	1 : 8	3.50	72	4	0	0
CF8%	0.52	0.48	8	1 : 8	3.50	72	8	0	0
CF12%	0.52	0.48	8	1 : 8	3.50	72	12	0	0
SS4%	0.52	0.48	8	1 : 8	3.50	72	0	4	0
SS8%	0.52	0.48	8	1 : 8	3.50	72	0	8	0
SS12%	0.52	0.48	8	1 : 8	3.50	72	0	12	0
CC4%	0.52	0.48	8	1 : 8	3.50	72	0	0	4
CC8%	0.52	0.48	8	1 : 8	3.50	72	0	0	8
CC12%	0.52	0.48	8	1 : 8	3.50	72	0	0	12
Control	1.0	0	8	1 : 8	3.50	72	0	0	0