Table 3 Chemical composition of OPC cement and PFS.

From: Characterization and experimental investigation of powdered filtration sludge for potential utilization in construction industry

Composition

Mass%

OPC cement

PFS

SiO2

22.8

50.89

Fe2O3

3.59

6.55

Al2O3

5.2

17.81

CaO

58.2

2.94

MgO

2.45

2.64

K2O

0.47

3.59

Na2O

0.23

1.08

TiO2

0.33

0.64

P2O5

0.21

0.38

MnO

0.2

0.18

ZnO

–

0.02

Others

2.64

5.91

LOI

3.76

7.42

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