Table 1 Characteristics of cement and metakaolin.
From: Effect of Metakaolin Content on the Properties of High Strength Concrete
Chemical composition | Cement (%) | Metakaolin (%) |
|---|---|---|
Silica (SiO2) | 34 | 54.3 |
Alumina (Al2O3) | 5.5 | 38.3 |
Ferric oxide (Fe2O3) | 4.4 | 4.28 |
Calcium oxide (CaO) | 63 | 0.39 |
Magnesium oxide (MgO) | 1.26 | 0.08 |
Sodium oxide (Na2O) | 0.1 | 0.12 |
Potassium oxide (K2O) | 0.48 | 0.50 |
Sulphuric anhydride (SO3) | 1.92 | 0.22 |
Loss on ignition (LOI) | 1.3 | 0.68 |
Blaine (m2/kg) | 360 | 15,000a |
Specific gravity | 3.15 | 2.5 |