Table 1.
Typical composition range of blast furnace slag (BFS).
| Chemical Composition | SiO2 | CaO | Al2O3 | MgO | Fe2O3 | SO3 | Na2O | K2O |
| Percentage (%) | 27–40 | 30–50 | 5–15 | 1–15 | 0.2–2.5 | 1–2.5 | 0.1–3 | 0.1–3 |
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