Well-Dispersed Silica Fume by Surface Modification and the Control of Cement Hydration

Table 3

Chemical composition of PI 52.5 Portland cement.

	SiO2 (%)	Al2O3 (%)	Fe2O3 (%)	CaO (%)	MgO (%)	SO3 (%)	K2O (%)	N2O (%)	L.O.I (%)
Cement	20.40	4.70	3.38	64.70	0.87	1.89	0.49	0.33	3.24