Grade 42.5 R/N Grey Portland Cement CEMENT Specification:- Ordinary Portland Cement Grade42.5 Chemical Analysis:- 1. Silicon Dioxide (SIOZ) 20.25% 2. Aluminum Oxide (A1203) 4.73% 3. Ferric Oxide (Fe203) 3.35% 4. Calcium Oxide (CaO) 63.44% 5. Magnesium Oxide (MgO) 3.15% 6. Sulphur Trioxide (S03) 2.91% 7. Alkalies (Na20 +0658 X K20) 0.50% 8. Loss on Ignition 1.05o/o 9. Insoluble Residue 0.51% 10.Tricalcium Silicate (C2S) 72.59 11. Dilicalcium Silicate (C2S) 12. Tricalcium Aluminate (C3A) 6.87 % 13.Tetra Calcium Aluminoferrite (C4AF) 10.18 14.Chloride Packing:50 kg bags packed into container individually