PRODUCT SPECIFICATION - Portland Cement 42.5 R/N
Chemical Composition
Silicon Dioxide (Si 02) 21% Minimum
Aluminium Oxide (Al2 03) 5.5% Max
Ferric Oxide (Fez 03) 3.3% Max
Calcium Oxide (Ca 0) 65.6% Min
Magnesium Oxide (Mg 0 %) 1.4% Max
Sulphur Trioxide (S03) 2.7% Max
Loss of Ignition (LOI) 1.4% Max
Insoluble Residue % 0.5% Max
Total Alkalies as Na20 0.6% Max
Tricalcium Aluminate (Ca3 Al %) 8.5% Max
Tricalcium Silicate (Cas Si %) 60.0% Min
Dicalcium Silicate (Caz Si %) 15% Max
Tricalcium Alumina Ferrite (Ca4 Al Fe %) 9.76%
Chromium (Cr %) 2.0% Max
Physical and Mechanical Properties
Blain CM2/GR 3.250
Autoclave Expansion (Le Chat) 0.02mm
Physical and Mechanical Properties
Blain CM2/GR 3.250
Autoclave Expansion 0.02
Initial Setting Time (Vicat Test) 105 Min
Final Setting Time (Vicat Test) 135 Min
Compressive Strength
@ 03 DAYS PSI 230 Kg/CM2
@ 07 DAYS PSI 305 Kg/CM2
@ 28 DAYS PSI 420 Kg/CM2
