Table 4.
Chemical composition of fly ash.
| Element | Percentage (%) |
|---|---|
| SiO2 | 38.80 |
| Fe2O3 | 19.48 |
| CaO | 18.10 |
| Al2O3 | 14.70 |
| MgO | 3.30 |
| K2O | 1.79 |
| SO3 | 1.50 |
| MnO | 0.16 |
| BaO | 0.27 |
| TiO2 | 1.02 |
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