Experimental Study on the Concrete with Compound Admixture of Iron Tailings and Slag Powder under Low Cement Clinker System

Table 3

Concrete mix proportion (kg·m⁻³).

Grade	Group	Cement	Iron tailings powder	Slag powder	Sand	Stone	Water	W/B	PC (%)
C30	A1	151	0	226	840	1018	151	0.40	0.9
	A2	151	68	158	840	1018	147	0.39	0.9
	A3	151	113	113	840	1018	143	0.38	0.9
	A4	151	158	68	840	1018	140	0.37	0.9
	A5	151	226	0	840	1018	136	0.36	0.9
C50	B1	239	0	239	725	1071	139	0.29	1.4
	B2	239	72	167	725	1071	134	0.28	1.4
	B3	239	119.5	119.5	725	1071	129	0.27	1.4
	B4	239	167	72	725	1071	124	0.26	1.4
	B5	239	239	0	725	1071	119	0.25	1.4