Effect of Different Activators on Rheological and Strength Properties of Fly Ash-Based Filling Cementitious Materials

Table 5

Orthogonal test scheme of compound activation.

Test no.	A	B	C	D
	Lime dosage (%)	Gypsum dosage (%)	NaOH dosage (%)	Na2SO4 dosage (%)
FH-1	8	4	1	2
FH-2	8	5	2	3
FH-3	8	6	3	4
FH-4	12	4	2	4
FH-5	12	5	3	2
FH-6	12	6	1	3
FH-7	16	4	3	3
FH-8	16	5	1	4
FH-9	16	6	2	2

Notes: the ratio of cement to fly ash is 1 : 1; the water-cement ratio is 0.5.