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The properties and chemical compositions of granulated blast furnace slag (GGBS), fly ash, and ordinary Portland cement (OPC). (Reproduced from the previous work [46] with permission from Elsevier).
| Indexes | GGBS | Fly Ash | OPC |
|---|---|---|---|
| Specific surface area (m2/kg) | 400 | 600 | - |
| Density (g/cm3) | 2.8 | 2.34 | - |
| Fineness (80 µm) | - | - | 1.1 |
| SiO2 (%) | 35.52 | 51.49 | 20–24 |
| Al2O3 (%) | 13.60 | 24.36 | 4–7 |
| CaO (%) | 35.05 | 9.8 | 62–67 |
| Fe2O3 (%) | 0.61 | 5.49 | 5–6 |
| SO3 (%) | 1.72 | 2.14 | 2.12 |
| MgO (%) | 9.58 | 1.2 | 0.9 |
| Ignition loss (%) | 3 | 2.34 | 1.7 |
