Ordinary Portland Cement PO 42.5

The specification of PO52.5 1) Quality standard:GB175-2007 2) Specification as bellows: Test ItemUnitGB175-2007Test dataConclusionFineness Specific Surface/≥300361eligibleComsumptive use of water normal consistence%/25.2/Initial Setting timeh:min≥00:4501:41Eligible Final setting timeh:min≤06:3002:46EligibleInvariabilitymm≤5.00.48Eligiblemm/0.50/Strength 3DBending StrengthMPa≥4.0X=5.2Eligible5.15.15.328DMPa≥7.0X=8.0Eligible7.78.08.23DCompressive StrengthMPa≥23.0X=25.4Eligible25.124.627.129.930.530.328DMPa≥52.5X=59.0Eligible57.958.059.159.259.261.1SO3%≤3.51.87EligibleLoss%≤3.01.31EligibleMgO%≤5.03.73Eligibleundissolved substance%≤1.501.24EligibleAlikali content%≤0.600.53EligibleRemarkAll the data meet the China Standard GB175-2007