CEM I 42.5 N
Constrix Materials

CEM I 42.5 N

CEM I 42.5 N
Cement Product Detail

Normal use Portland cement

Portland cement, preferable to use in the normal uses of cement. According to Egyptian standard norm 4756-1/2022 and technically complies with BS EN 197-1/2011.

Ready-mix concreteGeneral constructionStructural construction
Physical Test
Description
Limits / Standard
Obtained Results
Soundness (Expansion)
≤ 10
0.0 mm
Fineness, Blaine
3900 cm²/g
Insoluble Residue
≤ 5.0
3.2%
Initial setting time
≥ 60
165 min
Water consistency
28.1%
Compressive Strength — 2 days
≥ 10
20.0 MPa
Compressive Strength — 28 days
≥ 42.5
50.0 MPa
Chemical Analysis
Description
Limits / Standard
Obtained Results
SiO₂
19.95%
Al₂O₃
4.89%
Fe₂O₃
3.64%
CaO
62.19%
MgO
1.15%
SO₃
≤ 3.5
3.30%
Na₂O
0.35%
K₂O
0.24%
Chloride (Cl)
≤ 0.1
0.05%
LOI
≤ 5.0
3.70%

Applications

Ready-mix concrete
General construction
Structural construction