1,Color:grey/white 2,Standard:British Standards BS 12/1996, or United States Standards ASTM C-150. 3,Weight:1250Gms/Litre Specification:Component index ConstituentsUnitValueSiO2%20.90Al2O3 %5.67Fe2O3%3.90CaO%65.10MgO%1.90SO3%0.60K2O%0.59Na2O%0.17Total Alkalies (as Na2O)%0.55Chloride%0.02Insoluble Residue%0.20Loss on Ignition0.35Free Lime0.97PHASE COMPOSITIONC2S%58.52C2S%15.80C3A%8.43C4AF%11. ...