Table 2:
Chemical composition of quicklime, Portland cement, slag, cement clinker, and dihydrate gypsum (wt%).
CaO
SiO
2
Al
2
O
3
Fe
2
O
3
SO
3
MgO
Quicklime
81.12
0.49
0.09
0.04
0.01
Portland cement
59.82
24.13
6.35
3.57
2.24
0.98
Slag
37.68
30.46
14.95
1.12
1.95
9.9
Cement clinker
63.83
21.48
4.72
3.63
0.67
3.70
Dihydrate gypsum
42.87
4.2
0.25
0.05
44.22
1.17