Product Description

STANDARD PARAMETERS OF CEMENT PO *2.5R WITH GB*******7 CATEGORY:GB*******7 QUALITY INDEX GRADE:PO*2.5R STANDARD SOUNDNESS Passed GB/T ***6 (SO3)(%) ≤3.5 GB/T**6 (MgO)(%) ≤5.0 GB/T**6 R2O ( NA2O*0.**8K2O) GB/T**6 CHLORIDE CONTENT (%) ≤0.*6 JC/T**0 DEGREE OF FINENESS (*0UM)(%) ***- GB/T***5 FINENESS (SPECIFIC SURFACE) (M2/KG ) ≥**0 GB/T ***4 LOSS ON IGNITION (%) ≤5.0 GB/T**6 INSOLUBLE RESIDUE (%) (≤1.5%) ***- GB/T**6 SETTING TIME (MIN) INITIAL TIME ≥*5 GB/T ***6 FINAL TIME ≤**0 FLEXURAL RIGIDITY (MPA) 3 DAYS ≥4.0 GB/T****1 *8 DAYS ≥6.5 COMPRESSIVE STRENGTH（MPA) 3 DAYS ≥*2 *8 DAYS ≥*2.5