Chemical composition

CaO

SiO₂

Al₂O₃

Fe₂O₃

SO₃

P₂O₅

K₂O

Na₂O

MgO

TiO₂

Cement

56.3

22.4

8.5

3.10

4.20

4.65

0.56

0

­

-

Fly ash

1.31

57.82

31.96

3.07

0.23

0.25

1.03

0.30

2.68

1.25