Influence of Steel Slag-Superfine Blast Furnace Slag Composite Mineral Admixture on the Properties of Mortar and Concrete

Table 1

Chemical compositions of the material (w.t.%).

Sample	CaO	SiO2	Al2O3	Fe2O3	MgO	K2O	NaO	SO3	Loss
OPC	57.21	22.36	7.73	3.66	3.10	0.23	0.73	3.54	2.31
SS	43.37	19.10	7.46	18.01	5.17	0.63	0.41	—	1.36
SBFS	40.26	34.39	13.78	0.19	7.43	0.44	0.3	1.92	3.5