CEM I 42,5 R
Portland cement
Composition
- Portland clinker in the amount of 95-100%
- Secondary ingredients in the amount of 0-5%
- Setting time regulator - calcium sulfate
Characteristics
- Specific gravity 3.10 kg/dm3
- Volume 100 kg of cement is 32.3 dm3
- Bulk density 1.42 t/m3
- Rapid strength gain
- High heat of hydration
- High early and final strength
Application
- High-strength concrete - HSC
- Self-compacting concrete - SCC
- Normal concrete, commercial according to EN 206-1 class C16/20 and higher
- Concrete for vibro-pressed prefabricates e.g. concrete paving blocks
- Concrete for monolithic structures and elements
- Cement and cement-lime building mortars: 'masonry and plastering'
Meets requirements
- standards PN-EN 197-1 "Cement - Part 1: Composition, requirements and conformity criteria for common cements"
- standards PN-EN 197-2 "Cement - Part 2: Conformity evaluation and verification of the constancy of performance"
| REQUIREMENTS according to EN 197-1 | UNIT | REQUIRED VALUES |
| Compressive strength after 2 days | MPa | >= 20.0 |
| Compressive strength after 28 days | MPa | >= 42.5 <= 62.5 |
| Setting time (beginning) | min | >= 60 |
| Volume stability | mm | <= 10 |
| Loss on ignition | % | <= 5.0 |
| Insoluble residue | % | <= 5.0 |
| Sulfate content (as SO3) | % | <= 4.0 |
| Chloride content | % | <= 0.10 |
| Chromium content Cr(VI) | ppm | <= 2.0 |
Technical consultancy
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