Chemical and physical characteristics of cementitious materials
| Parameter | Type I Portland cement | Class F fly ash |
|---|---|---|
| Silicon dioxide (SiO2): % | 33.4 | 60.0 |
| Aluminum oxide (Al2O3): % | 15.0 | 25.5 |
| Iron oxide (Fe2O3): % | 0.5 | 7.7 |
| Calcium oxide (CaO): % | 44.1 | 10.6 |
| Free CaO: % | 0.8 | — |
| Magnesium oxide (MgO): % | 3.5 | 1.4 |
| Sulfur trioxide (SO3): % | 3.4 | 0.3 |
| Loss on ignition (LOI): % | 1.2 | 0.1 |
| Tricalcium silicate (C3S): % | 61.2 | — |
| Dicalcium silicate (C2S): % | 12.0 | — |
| Tricalcium aluminate (C3A): % | 13.1 | — |
| Tetracalcium aluminoferrite (C4AF): % | 6.1 | — |
| Blaine: m2/kg | 350 | — |
| Silicon dioxide (SiO2): % | 33.4 | 60.0 |
| Aluminum oxide (Al2O3): % | 15.0 | 25.5 |
| Iron oxide (Fe2O3): % | 0.5 | 7.7 |
| Calcium oxide (CaO): % | 44.1 | 10.6 |
| Free CaO: % | 0.8 | — |
| Magnesium oxide (MgO): % | 3.5 | 1.4 |
| Sulfur trioxide (SO3): % | 3.4 | 0.3 |
| Loss on ignition (LOI): % | 1.2 | 0.1 |
| Tricalcium silicate (C3S): % | 61.2 | — |
| Dicalcium silicate (C2S): % | 12.0 | — |
| Tricalcium aluminate (C3A): % | 13.1 | — |
| Tetracalcium aluminoferrite (C4AF): % | 6.1 | — |
| Blaine: m2/kg | 350 | — |
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