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: 50,000 T per month Package: 1.5 tons per pp bag Function: High strength, the faster of condensation and induration, good frost resistance and good workability Sphere of application: Applicable to important structure of high strength concrete and prestressed concrete engineering, such as high-rise building, high-grade highways, bridges, etc. Our company established in 1995, and has become one of the biggest company dealing with the export of¨¢GGBFS and GBFS in north China. We are glad to cooperate with friends all over the world. 1.5 tons per jumbo bag