Specification of clinker in bulk.
No. | Characteristics | Requirement |
1 | Moisture | ≤ 1% |
2 | Content of free lime (f.CaO) | ≤ 1.5% |
3 | Chemical composition | |
3.1 | SiO2 | 18 - 26% |
3.2 | Al2O3 | 3 - 8% |
3.3 | Fe2O3 | 2 - 5% |
3.4 | CaO | 65% MINIMUM |
3.5 | MgO | ≤ 3% |
3.6 | SO3 | ≤ 0.75% |
3.7 | Na2O td = Na2O + 0,658 K2O | ≤ 0.9% |
3.8 | Loss on ignition (LOI) | ≤ 1.0% |
3.9 | Insoluble residue content (IR) | ≤ 0.75% |
4 | C3S | 55% MIN |
| C2S | 10-22% |
| C4AF LSF | 8% – 12% 0.92 – 1.02 |