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El Derea Cement
El Derea Cement
“Cemex is a global building solutions company providing reliable and high quality products and services to customers and communities”
Our Product is produced using carefully selected raw materials (GBFS) confirming BS 6699 Strict quality control throughout each stage of the manufacturing process ensures that a consistent final product is produced, that meets and exceeds the requirements of EN 197-1 2011 and ES 4756 -1/2013. Our cement is manufactured and distributed by Assiut Cement Company.
Usages and Applications
Blast furnace cement is the most suitable solution in wide range of concrete applications including mass concrete, sewage systems and concrete elements subjected to severe environment.
Blast furnace cement significantly reduces the heat evolution during hydration and reduces thermal cracks in concrete. In fact it is the optimum solution for hot weathering concrete.
| Item | Unit | Spec. Limit | Test Result |
|---|---|---|---|
| SiO₂ | % | -- | 23.15 |
| Al₂O₃ | % | --- | 6.35 |
| Fe₂O₃ | % | --- | 5.18 |
| CaO | % | --- | 55.36 |
| MgO | % | --- | 3.67 |
| SO₃ | % | 4.0 max | 2.53 |
| Na₂O | % | --- | 0.35 |
| K₂O | % | --- | 0.21 |
| Cl | % | 0.10 max | 0.07 |
| (IR) Insoluble residue | % | 5.0 max | 1.61 |
| (LOI) Loss On Ignition | % | 5.0 max. | 1.78 |
| Equivalent Alkalies | % | --- | 0.49 |
| Item | Unit | Spec. Limit | Test Result |
|---|---|---|---|
| Fineness, Blaine | Cm²/gm | --- | 3892 |
| Heat of Hydration | Kj/kg | 270 max | 230 |
| Setting time (initial) | Minutes | 60.0 min | 140 |
| Setting Time (final) | Minutes | --- | 195 |
| Le Chatelier expansion | mm | 10.0 max | 1.0 |
| Compressive Strength | N/mm² | ||
| 2 days | 10.O min | 19.19 | |
| 7 days | --- | 33.05 | |
| 28 days | 42.5 min., 62.5 max. | 48.38 |
Relevant Information
Advantages
- It is the superior solution for hot weathering concrete.
- Reduce heat of hydration ( less than 210 KJ/Kg ) and so reduce cracks even in mass concrete.
- Improved workability.
- CEM III/A demand water less than for a Portland cement concrete.
Packaging
It is available in bulk silos.
Shelf time
Safety recommendations
It is recommended to follow the following instructions:
- Avoid contact of cement with eyes and skin since it may cause allergic reactions.
- Use gloves and glasses to protect hands and eyes in case of spray applications, or manual mixings.
How to clean the cement remains of the used tools
- Before setting: by using clean water.
- After setting: by using mechanical methods.
