Portland Cement With High Strength 1-425
This type of cement has higher compressive strength than the other type of cement produced in the company and is being distributed in class 425 and 525. 28 day strength in types 1-425 and 1-525 equals 425 kg/cm2 and 525 kg/cm2, respectively.
Data Sheet
| Component | Result | Requirements |
| Loss on ignition | 1.60% | Max:3 |
| SiO2 | 21.60% | – |
| Al₂O₃ | 5.00% | – |
| Fe2O3 | 3.57% | – |
| CaO | 64.05% | – |
| MgO | 2.00% | Max: 5 |
| SO3 | 2.10% | Max: 3 |
| CI | 0.02% | – |
| Insoluble Residue | 0.60% | Max: 0.75 |
| Free CaO | 1.50% | – |
| Alkalis(Na2O%+0.658 K2O%) | 1.0% | – |
| C3S | 51.9% | – |
| C2S | 22.8% | – |
| C3A | 7.2% | – |
| C4AF | 10.9% | – |
Packaging
- Sack bag
- Pallet bag
- Jumbo bag
- Bulk
Transportation
- Land
- Rail
- Sea
Application
- Production of concrete
- In mortars(with sand and water only)
- In plaster and screeds