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About Us
(1) Grade: P.O.42.5 (china standard GB175-2007.
(2) Chemical analysis:
CHINA STANDARD GB175-2007 P. O 42.5
Items/ Indexes National Standard Internal controlled indexes
Cement MgO (%) ≤ 5.0 3.80
Cement SO 3 (%) ≤ 3.5 2.30
Cement loss on ignition (%) ≤ 5.0 2.01
Cement fineness (%) ≤ 10.0 1.50
Setting time (min) ≥ 45 190
Final setting time ≤ 600 245
Strength(MPa) 3-day compressive strength ≥ 16.0 25.60
3-day bending ...
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