Evaluation of Rheological Parameters of Slag-Based Paste Backfill with Superplasticizer

Table 2

Mix proportions of fresh CPB.

Stage	Factors	Superplasticizer type	Binder type	Superplasticizer content (‰)	Binder content (%)	Solid content (%)	Curing time (min)
I	Types and dosage of superplasticizer	PNS	Slag-based binder	0, 0.36, 0.73, 1.09, 1.45, 1.81	9.1	76	0
		PMS	Slag-based binder	0, 0.36, 0.73, 1.09, 1.45, 1.81	9.1	76	0
		PC	Slag-based binder	0, 0.36, 0.54, 1.09	9.1	76	0
II	Curing time	PC	Slag-based binder, OPC	0, 0.36, 0.54	9.1	76	0
		PC	Slag-based binder, OPC	0, 0.36, 0.54	9.1	76	30
		PC	Slag-based binder, OPC	0, 0.36, 0.54	9.1	76	60
		PC	Slag-based binder, OPC	0, 0.36, 0.54	9.1	76	120
	Solid content	PC	Slag-based binder	0, 0.36, 0.54	9.1	76	0
		PC	Slag-based binder	0, 0.36, 0.54	9.1	77	0
		PC	Slag-based binder	0, 0.36, 0.54	9.1	78	0
	Binder content	PC	Slag-based binder	0, 0.36, 0.54	4.8	76	0
		PC	Slag-based binder	0, 0.36, 0.54	9.1	76	0
		PC	Slag-based binder	0, 0.36, 0.54	14.3	76	0
		PC	Slag-based binder	0, 0.36, 0.54	20.0	76	0