ATZ PORTLAND CEMENT CEM I 42.5R

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Category: Cement

ATZ Portland Cement CEM I 42.5R is a pure portland cement made from top-quality clinker, ground with gypsum and no extenders, ensuring rapid early strength and reliability.

Applications

This cement excels in creating concrete for foundations, slabs, and precast items, as well as mortar for bricklaying and plaster for smooth wall finishes. It’s also great for producing sturdy bricks and performs reliably in low-temperature settings thanks to its quick hardening.
ATZ Portland Cement CEM I 42.5R ensures steady quality and strength. It pairs well with typical admixtures but avoid mixing with fly ash or slag.

Specification

ATZ Portland Cement CEM I 42.5R meets the 42.5R strength class of EN 197-1:2011 for common cements. “CEM I” indicates pure Portland cement, with minor variations based on the production plant.

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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	20.66	EN 196 -2
Aluminum Trioxide, Al₂O₃	A	5.82
Ferric Oxide, Fe₂O₃	A	3.30
Calcium Oxide, CaO	A	60.74
Chemical Content Requirement (%)	Spect.Limit	Typical results	Test Method
Magnesium Oxide, MgO	≤ 5.0	-	EN 196 - 2
Sulfate content, SO₃	≤ 4.0	2.30
Loss on Ignition, LOI	≤ 5.0	2.50
Insoluble Residue, IR	≤ 5.0	0.45
Equivalent alkalis, Na₂O + 0.658K₂O	≤ 0.8	-
Physical Properties	Spect.Limit	Typical results	Test Method
Setting times: minutes Initial: Final:	≥ 45 ≤ 420	165 200	EN 196 - 3
Soundness Expansion: mm	≤ 10.0	0.1	EN 196 - 3
Finenest Test (Blaine): cm²/g	≥ 3200	3998	EN 196 - 6
Retained Content on Sieve: % 45µm	≤ 12.0	1.0	EN 196 - 6
Compressive Strength (Mpa)	Spect.Limit	Typical results	Test Method
After 2 days After 7 days After 28 days	≥ 20.0 - ≥ 42.5	23.1 45.8 52.2	EN 196 - 1