Chemical Composition,% | Sample | ||
CEM I (52.5N) | Cement kiln dust (CKD) | Silica fume* (SF) | |
SiO2 | 20.48 | 12.27 | 93.79 |
Al2O3 | 15.06 | 2.27 | 0.36 |
Fe2O3 | 5.23 | 3.70 | 1.48 |
CaO | 3.96 | 45.28 | 0.33 |
MgO | 3.40 | 1.49 | 0.41 |
SO3 | 2.12 | 2.59 | 0.19 |
Na2O | 62.72 | 0.31 | 0.43 |
K2O | 1.67 | 5.68 | 0.62 |
Cl | 3.20 | 8.06 | 0.05 |
L.O.I | 0.33 | 17.38 | 1.63 |