Chemical properties of Portland cement.
| Compounds | OPC (%) |
|---|---|
| CaO | 63.28 |
| SiO2 | 19.95 |
| Al2O3 | 4.79 |
| Fe2O3 | 3.14 |
| MgO | 2.03 |
| Na2O | 0.29 |
| K2O | 0.4 |
| SO3 | 2.69 |
| P2O5 | 0.04 |
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