PO52.5ORDINARY PORTLAND CEMENT（CHINESE STANDARD:GB175-1999）

项目 CHINESE STANDARD 工厂FACTORY
Standard P.O52.5(STANDARD:GB175-1999) actual data
MgO ≤5.0% 3.0%
SO3 ≤3.5% 3.0%
Loss on Ignition ≤5.0% 4.5%
Fineness ≤10.0% 2.0%
Initial Setting Time >45min 60:min
Final Setting Time ≤600:min 240min
Bending Strength 3 days >5.0 Mpa 5.50Mpa
Bending Strength 28 days >7.0 Mpa 7.5Mpa
Compressive Strength 3days >26.0 Mpa 28.0Mpa
Compressive Strength 28days >52.5 Mpa 56.0Mpa
Soundness Up to grade Up to grade
Conclusion: