Table 1 Chemical and physical properties of PC, GDS and Slag.

SiO₂

22.62

93.4

33.33

Al₂O₃

6.11

0.19

13.74

Fe₂O₃

3.69

0.32

0.44

CaO

57.96

0.45

43.1

MgO

2.16

–

5.76

K₂O

0.98

0.04

0.41

Na₂O

0.17

–

0.2

SO₃

2.99

–

1.89

LOI

3.02

1.15

1.34

Specific surface area, BET cm²/g

3012

2574

5314

Specific gravity

3.15

2.64

2.94