Table 1 Properties of cementitious materials

Specific gravity

3.15

2.21

2.40

Specific area, cm² g⁻¹

3250

–

3900

Color

Grey

Light grey

Light grey

 Silicon dioxide (SiO₂)

19.70

96.20

61.06

 Aluminum oxide (Al₂O₃)

6.46

0.26

28.55

 Ferric oxide (Fe₂O₃)

3.66

0.57

3.15

 Calcium oxide (CaO)

62.15

0.47

1.41

 Magnesium oxide (MgO)

2.10

0.35

1.32

 Sulphur trioxide (SO₃)

2.51

0.15

1.06

 Potassium oxide (K₂O)

0.75

0.67

1.15

 Titanium dioxide (TiO₂)

–

–

0.35

 Sodium oxide (Na₂O)

0.85

0.12

0.71

 Loss on ignition (LOI)

1.73

1.15

1.19