Clinker Specification Type OPC (clinker test report)
| Composition% | Test Method | Value | Standard Limit. | Tolerance |
| SiO2 | ISIRI-1692 | > 20.9 | – | max 22 |
| Al2O3 | ISIRI-1692 | > 5.3 | – | 5.3-6 |
| Fe2O3 | ISIRI-1692 | < 4 | – | 3.5-4 |
| CaO | ISIRI-1692 | 65 | – | 64.5-65.5 |
| MgO | ISIRI-1692 | < 2.1 | Max 5.0 | max 2.2 |
| SO3 | ISIRI-1692 | ≤ 1.2 | – | max 1.2 |
| K2O | ISIRI-1695 | < 1.0 | – | max 1 |
| Na2O | ISIRI-1695 | <0.2 | – | – |
| CL | ISIRI-6443 | 0.006 | – | – |
| L.O.I | ISIRI-1692 | <0.5 | Max 1.0 | Max 1.0 |
| LSF | ISIRI-1692 | ≥ 94.5 | – | – |
| SIM | ISIRI-1692 | >2.2 | – | – |
| ALM | ISIRI-1692 | >1.4 | – | – |
| C3S | ISIRI-389 | ≥ 57 | – | 57-60 |
| C2S | ISIRI-389 | < 20 | – | – |
| C3A | ISIRI-389 | 8 | – | 7.5-8.5 |
| C4AF | ISIRI-389 | < 11.5 | – | – |
| Free CaO | ISIRI-1692 | 1.5 | Max 2.0 | Max 2.0 |
| Total Alkali | ISIRI-1692 | ≤ 0.95 | – | – |
| Clinker Sieve Analysis | ||||
| Size.mm(Inches) |
ASTM E11 |
Unit(Percent) | Actual | Cumulative |
| Retain on/25mm | % | 10.00 | 10.00 | |
| Retain on/10mm | % | 42.00 | 52.0 | |
| Retain on/5mm | % | 18.00 | 70.0 | |
| Retain on/2.5mm | % | 16.00 | 86.0 | |
| Retain on/1 mm | % | 7.00 | 93.0 | |
| passing/1mm | % | 7.00 | 100.0 | |
| Reference: EN196-2&ASTM | ||||
