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CEM I 42.5 R
Portland Cement – Technical Data Sheet
Product Overview
CEM I 42.5 R is a high-performance Portland cement designed for rapid early strength development. It is ideal for precast structural elements, fast-track construction projects, commercial infrastructure and demanding industrial applications.
Thanks to its high clinker purity and excellent workability, this cement delivers reliable mechanical performance and consistent quality in structural concrete production.
22.0 MPa
Early Strength (2 Days)
55.0 MPa
Standard Strength (28 Days)
3800 cm²/g
Blaine Surface Area
Chemical Analysis & Mineralogical Composition
| Parameter | Unit | Average Value | Standard Limit |
|---|---|---|---|
| Silicon Dioxide (SiO₂) | % | 20.5 | – |
| Aluminum Oxide (Al₂O₃) | % | 4.9 | – |
| Iron Oxide (Fe₂O₃) | % | 3.85 | – |
| Calcium Oxide (CaO) | % | 63.3 | – |
| Sulfur Trioxide (SO₃) | % | 1.85 | ≤ 4 |
| Chlorides (Cl⁻) | % | < 0.01 | ≤ 0.10 |
| Loss on Ignition (LOI) | % | 1.6 | ≤ 5.0 |
| Tricalcium Silicate (C₃S) | % | ≥ 60 | – |
Physical & Mechanical Properties
| Test | Unit | Value | Standard |
|---|---|---|---|
| Soundness | mm | 1 | ≤ 10 |
| Initial Setting Time | min | 165 | ≥ 60 |
| Final Setting Time | min | 225 | – |
| Absolute Density | g/cm³ | 3.08 | – |
| Blaine Specific Surface | cm²/g | 3800 | – |
| Compressive Strength (2 Days) | MPa | 22 | ≥ 20.0 |
| Compressive Strength (7 Days) | MPa | 37 | – |
| Compressive Strength (28 Days) | MPa | 55 | ≥ 42.5 |
Standard Compliance: EN 197-1 / NA 442
Commercial Origin: GICA – Algeria
Application: Industrial, Structural & Infrastructure Projects
Commercial Origin: GICA – Algeria
Application: Industrial, Structural & Infrastructure Projects