ATZ PORTLAND CEMENT CEM I 42.5N

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Category: Cement

ATZ PORTLAND CEMENT CEM I 42.5N is pure portland cement made from top-quality clinker ground with gypsum, with no extenders, ensuring reliable strength and durability.

Applications

This cement is ideal for concrete foundations, slabs, precast elements, mortar for bricklaying, and plaster for smooth finishes. ATZ PORTLAND CEMENT CEM I 42.5N ensures consistent quality and strength, performs well in moderate temperatures, and is compatible with common chemical admixtures. It should not be mixed with materials like fly ash or ground granulated blast-furnace slag to maintain its intended properties.

Specification

ATZ PORTLAND CEMENT CEM I 42.5N meets the 42.5N strength class of EN 197-1:2011 for common cement.

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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	20.34	EN 196 -2
Aluminum Trioxide, Al₂O₃	A	5.26
Ferric Oxide, Fe₂O₃	A	3.14
Calcium Oxide, CaO	A	63.18
Chemical Content Requirement (%)	Spect.Limit	Typical results	Test Method
Magnesium Oxide, MgO	A	1.80	EN 196 - 2
Sulfate content, SO₃	≤ 3.5	2.20
Chloride, Cl	≤ 0.1	0.007
Loss on Ignition, LOI	≤ 5.0	2.86
Insoluble Residue, IR	≤ 5.0	0.41
Equivalent alkalis, Na₂O + 0.658K₂O	A	0.54
Physical Properties	Spect.Limit	Typical results	Test Method
Setting times: minutes Initial: Final:	≥ 45 ≤ 375	140 190	EN 196 - 3
Soundness Expansion: mm	≤ 10.0	0.8
Standard consistency: %	A	27.0
Finenest test (Blaine): cm²/g	≥ 3200	4000	EN 196 - 6
Compressive Strength (Mpa)	Spect.Limit	Typical results	Test Method
After 2 days After 28 days	≥ 10.0 ≥ 42.5	19.0 45.0	EN 196 - 1