Product Quality and Specifications Portland Cement/Clinker

UNITED STATES STANDARD ASTM C 150 BRITISH STANDARD BS 12/1996
RUSSIAN STANDARD GOST 1017885 SABS CERTIFIED CONTINGENTS AVAILABLE AT ADDITIONAL COST.
GOST AND BIS CERTIFICATION AVAILABLE UPON REQUEST.

 

 

 


ACCORDING TO BRITISH STANDARDS 12/1996, ASTM C-150 SPECIFICATIONS OF ORDINARY PORTLAND CEMENT GRADE 42.5 N/R CHEMICAL COMPOSITION.

  • SILICON DIOXIDE (SIO2) 21
  • ALUMINIUM OXIDE (A12O3) 5.3
  • FERRIC OXIDE (FE2O3) 3.3
  • CALCIUM OXIDE (CAO) 65.6
  • MAGNESIUM OXIDE (MGO) 1.1
  • SULPHUR TRIOXIDE (SO3) 2.7
  • LOSS OF IGNITION (LOI) 0.9
  • TRICALCIUM SILICATE (C3S) 60
  • DICALCIUM SILICATE (C2S) 15
  • TRICALCIUM ALUMINATE (C3A) 8.05
  • TRICALCIUM ALUMINO FERRICE (C4AF) 9.76

PHYSICAL AND MECHANICAL PROPERTIES

BLAIN CM2/GR 3.250
AUTOCLAVE EXPANTION 0.02
INITIAL SETTING TIME (VICAT) 105 MINUTES
FINAL SETTING TIME (VICAT) 135 MINUTES

Compressive strength at 3 DAYS 230 KG/CM2
Compressive strength at 7 DAYS 305 KG/CM2
Compressive strength at 28 DAYS 420 KG/CM2
Compressive strength mortar Mpa (N/mm”)
Strength Class: 42,5N
Early Strength: 2 days – 10.00
Strength Class: 42,5R
Early Strength: 2 days – 20.00
Standard 28 days strength: Minimum 42,5. Maximum 62,5