Table 1.

Oxide composition of the raw materials (wt%).

Oxides (wt%)	CaCO3 AP	SiO2 AP	Fe2O3 AP	Al2O3 AP	SFCC
CaO	54.95	0.01	0.02	0.07	0.10
SiO2	0.17	89.56	0.17	0.19	47.97
Fe2O3	0.02	0.05	97.53	0.02	1.13
Al2O3	0.02	0.51	0.08	95.26	42.09
MgO	0.29	n.d	n.d	n.d	0.03
SO3	0.02	0.26	0.49	0.02	0.10
P2O5	0.07	n.d	0.02	19 ppm	0.41
Na2O	0.02	0.56	0.10	0.36	0.51
ZnO	16 ppm	9 ppm	0.04	38 ppm	0.01
K2O	61 ppm	n.d	20 ppm	19 ppm	0.15
NiO	17 ppm	30 ppm	0.01	19 ppm	0.89
TiO2	17 ppm	0.02	59 ppm	48 ppm	0.52
MnO	56 ppm	n.d	0.18	n.d	39 ppm
La2O3	n.d	n.d	39 ppm	n.d	2.39
V2O5	6 ppm	n.d	20 ppm	48 ppm	0.71
Others	0.30	0.01	0.18	0.07	0.22
LOI	44.14	9.02	1.17	4.01	2.77

LOI Loss on ignition (1000 °C), as determined by thermal analysis; n.d. Not detected; ppm Parts per million.