Comparative Study of Strength and Corrosion Resistant Properties of Plain and Blended Cement Concrete Types

Table 2

Chemical composition of cements.

Constituent	Weight/(%)
	OPC	PPC	PSC
SiO2	21.0	32.0	31.0
Al2O3	5.50	10.0	10.5
Fe2O3	4.60	5.50	2.80
CaO	63.0	44.0	47.0
MgO	0.60	1.50	3.90
SO3	2.60	2.60	2.60
LOI	2.70	4.40	2.70