Packing: In 50 Kg bags/BULK. Especifications: CEMENT â?? 42.5 R : Chemical Composition SILICON DIOXIDE (SIO2) 21.00 ALUMINIUM OXIDE (A12O3) 5.30 FERRIC OXIDE (FE2O3) 3.30 CALCIUM OXIDE (CAO) 65.60 MAGNESIUM OXIDE (MGO) 1.10 SULPHUR TRIOXIDE (SO3) 2.70 LOSS OF IGNITION (LOI) 0.90 TRICALCIUM SILICATE (C3S) 60.00 DICALCIUM SILICATE (C2S) 15.00 TRICALCIUM ALUMINATE (C3A) 8.05 TRICALCIUM ALUMINO FERRICE (C4AF) 9.76 CEMENT â?? 42.5 R : 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 @ 03 DAYâ??S 230 KG/CM2 @ 07 DAYâ??S 305 KG/CM2 COMPRESSIVE STRENGTH @ 28 DAYâ??S 420 KG/CM2 SKU: ORDINARY PORTLAND CEMENT 32.5/42.5/52.5 GRADES Origin: India / Turkey / Pakistan / China