Chemical Composition Typical Control Range Silicon Dioxide (Slo2) 21.0 20.0 û 22.0 Aluminum Oxide(al203) 5.30 4.50 û 6.50 Ferric Oxide(CaO) 3.30 2.50 û 6.50 Calium Oxide(CaO) 65.60 63.00 û 66.00 Magnesium Oxide(MgO) 1.10 1.00 û 5.00 Sulfur Trioxide(SO3) 2.70 2.00 û 3.50 Loss on Ignition(L.O.I.)0.90 0.40 û 5.00 Tricalcium Silicate(C3S 60.00 40.00 û 60.00 . 50 kg bags.
