Research Article
The Influences of Iron Ore Tailings as Fine Aggregate on the Strength of Ultra-High Performance Concrete
Table 1
Chemical component (%).
| Name | SiO2 | Al2O3 | CaO | MgO | SO3 | Fe2O3 | Na2O | K2O | Loss |
| Cement | 20.71 | 4.97 | 59.88 | 2.33 | 3.72 | 3.26 | / | / | 3.62 | IOT | 68.44 | 8.27 | 4.46 | 3.04 | 0.35 | 7.46 | 2.29 | 1.90 | 2.73 | Fly ash | 55.77 | 31.77 | 2.59 | 0.61 | 0.60 | 3.88 | / | / | 1.03 | Slag powder | 32.69 | 15.50 | 38.14 | 9.14 | 1.73 | 1.70 | 0.10 | 0.43 | 2.3 | Silica fume | 94.32 | 0.14 | 0.06 | 0.05 | 0.43 | 1.29 | / | / | 3.40 |
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