Element

Fly ash PW (wt%)

[21]

(wt%)

[22]

(wt%)

[24]

(wt%)

[25]

(wt%)

SiO₂

52.1

52.7

42.64

55.89

44.42

Al₂O₃

11.8

26

20.49

23.06

32.56

Fe₂O₃

7.59

12.8

11.48

6.66

6.49

CaO

4.68

3.2

14.27

1.64

6.67

MgO

LOD

1.4

2.62

2.57

1.86

K₂O

1.72

0.79

2.84

0.99

1.81

TiO₂

1.52

1.24

P₂O₅

1.15

0.44