ATZ PORTLAND CEMENT CEM I 52.5R
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Cement
ATZ PORTLAND CEMENT CEM I 52.5R is a pure portland cement crafted from premium-grade clinker finely ground with gypsum, free of extenders, delivering outstanding compressive strength and long-lasting performance.
Applications
This cement excels in demanding construction projects such as concrete foundations, slabs, precast structural elements, bricklaying mortar, and plaster requiring a smooth, durable finish. ATZ PORTLAND CEMENT CEM I 52.5R offers superior early strength gain, consistent quality, and excellent workability in moderate climates. It is fully compatible with standard chemical admixtures but should not be blended with supplementary materials like fly ash or ground granulated blast-furnace slag to preserve its high-performance properties.
Specification
ATZ PORTLAND CEMENT CEM I 52.5R conforms to the 52.5R strength class of EN 197-1:2011 for common cement, ensuring rapid strength development and reliability. Where "CEM I" refers to Portland Cement. The type and quantity of extender may vary depending on the manufacturing plant.
TYPICAL PROPERTIES (This specification can be varied little on each production batch)
|
Chemical Content Not Requirement (%) |
Spect.Limit |
Typical results |
Test Method |
|
Silicon Dioxide, SiO₂ |
A |
20.00 |
EN 196 -2 |
|
Aluminum Trioxide, Al₂O₃ |
A |
5.10 |
|
|
Ferric Oxide, Fe₂O₃ |
A |
3.00 |
|
|
Calcium Oxide, CaO |
A |
64.64 |
|
|
Chemical Content Requirement (%) |
Spect.Limit |
Typical results |
Test Method |
|
Magnesium Oxide, MgO |
A |
1.60 |
EN 196 - 2 |
|
Sulfate content, SO3 |
≤ 4.5 |
2.92 |
|
|
Loss on Ignition, LOI |
≤ 5.0 |
3.39 |
|
|
Insoluble Residue, IR |
≤ 5.0 |
0.32 |
|
|
Equivalent alkalis, Na₂O + 0.658K₂O |
≤ 0.6 |
0.42 |
|
|
Physical Properties |
Spect.Limit |
Typical results |
Test Method |
|
Setting times (Vicat): minutes Initial: Final: |
≥ 45 ≤ 375 |
115 175 |
EN 196 - 3
|
|
Soundness (LeChatelier): mm |
≤ 5.0 |
0.10 |
|
|
Finenest test (Blaine): |
≥ 3200 |
4360 |
EN 196 - 6 |
| Retained content on
+ Sieve 45 μm: % |
≤ 12.0 |
0.4 |
|
|
Specific gravity: mm |
≥ 2.8 |
3.10 |
|
|
Autoclave Expansion: % |
≤ 0.80 |
0.06 |
ASTM C151/C151M |
|
Air content of mortar: % |
≤ 12.0 |
6.2 |
ASTM C185 |
|
Compressive Strength (MPa) |
Spect.Limit |
Typical results |
Test Method |
|
A ≥ 25.0 A ≥ 52.5 |
16.4 28.1 53.4 59.0 |
EN 196 - 1 |
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