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Physical and chemical property of OPC.
| Chemical property | Percentage (%) | Physical property | Results |
|---|---|---|---|
| Ca0 | 65.7 | Size | ≤ 75 µ |
| SiO2 | 21.9 | Fineness | 91.2% |
| Al2O3 | 3.4 | Normal consistency | 31% |
| Fe2O3 | 3.7 | Initial stetting time | 48 min |
| MgO | 1.5 | Final stetting time | 341 min |
| SO3 | 2.9 | Specific surface | 322 m2/kg |
| K2O | 0.4 | Soundness | 0.90% |
| Na2O | 0.5 |
