Ground granulated blast furnace slag/ GGBFS/ GGBFS Powder The GGBFS Powder that we export complies with standard of BS 6699. Physical and Chemical properties: SO3: 0.08% MgO: 12.36% Mn2O3: 1.26% Insoluble Residue: 0.1% Moisture content: 0.02% L.O.I: 0.14% Cl-: 0.026% SiO2+ CaO+ MgO: 82.71% ( CaO+ MgO) / SiO2: 1.34 CaO/ SiO2: 1.00 Mortar compressive strength: 13.5N/ mm2 for 3 days, 32.5 N/ mm2 for 7 days, 60 N/ mm2 for 28 days Activity index: 58% for 3 days, 83% for 7 days, 106% for 28 days Minimum Order Quantity: 1000 T Supply ability: 80, 000 T per month Package: 1.5 tons per pp bag