ATZ PORTLAND COMPOSITE CEMENT CEM II 42.5R is produced from high-quality raw materials, where clinker is ground with gypsum and an appropriate proportion of extender. This cement is characterized by fast strength development, making it suitable for projects that require quick construction.
Applications:
ATZ PORTLAND COMPOSITE CEMENT CEM II 42.5R is ideal for concrete, mortar, plaster, and bricks in projects needing early strength, like fast-setting concrete or urgent timelines, it offers excellent performance, high durability, and stability. Compatible with common chemical admixtures, but not with fly ash or ground granulated slag.
Specification:
ATZ PORTLAND COMPOSITE CEMENT CEM II 42.5R complies with the 42.5R strength class of EN 197-1:2011 for common cements. Where "CEM II" refers to Portland Composite Cement, and 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 (%) |
Spect.Limit |
Typical results |
Test Method |
Silicon Dioxide (SiO2) |
A |
21.89 |
EN 196-2 |
Alumium Oxide (Al2 O3) |
A |
5.52 |
|
Ferric Oxide (Fe2O3) |
A |
3.31 |
|
Calcium Oxide (CaO) |
A |
61.50 |
|
Magnesium Oxide (MgO) |
A |
3.68 |
|
Sulfate content (SO3) |
≤ 3.5 |
2.15 |
|
Loss on Ignition (LOI) |
A |
2.78 |
|
Insoluble Residue (IR) |
A |
0.67 |
|
Chloride content (Cl-) |
≤ 0.10 |
0.03 |
|
R2O ( Total alkalies) |
A |
0.54 |
|
Free CaO |
≤ 1.5 |
0.80 |
|
TiO2 |
A |
0.38 |
|
P2O5 |
A |
0.10 |
|
Physical Properties |
Spect.Limit |
Typical results |
Test Method |
Setting times: minutes Initial: Final: |
≥ 75 ≤ 420 |
151 187 |
EN 196-3 |
Finenest test (Blaine): |
≥ 3200 |
4105 |
EN 196-6 |
Retained content on sieve 45 μm: % |
≤ 12.0 |
0.9 |
|
Air content of motar, % |
≤ 12.0 |
5.1 |
ASTM C185 |
Autoclave expansion, % |
≤ 0.8 |
0.15 |
ASTM C151/C151M |
Compressive Strength (Mpa) |
Spect.Limit |
Typical results |
Test Method |
|
≥ 20.0 ≥ 24.8 ≥ 35.8 |
27.46 36.60 45.30
|
EN 196-1 |