| Oxides | CEM I 42.5N |
| SiO2 | 19.50 |
| Al2O3 | 4.80 |
| Fe2O3 | 3.60 |
| CaO | 63.50 |
| MgO | 3.40 |
| K2O | 0.69 |
| Na2O | 0.22 |
| SO3 | 2.60 |
| CaOf | 1.00 |
| LOI | 3.49 |
| Insoluble residue | 0.20 |