Effect of Calcined Hard Kaolin Dosage on the Strength Development of CPB of Fine Tailings with Sulphide

Table 1

Chemical properties of tailings, PC, and CHK used.

Composition	SiO2	Al2O3	Fe2O3	CaO	MgO	Pb	Na2O	K2O	S	Loss
Tailings	25.37	5.88	21.28	14.47	0.15	0.84	0.009	1.58	19.07	19.97
PC	25.26	6.38	4.05	54.67	2.68	—		—	0.06	—
CHK	43.13	45.17	1.25	1.75	0.10	—		—	—	7.70