Ground granulated blast furnace slag powder 1. Product: ground granulated blast furnace slag powder (ggbs) 2. Standard: s95 3. Blain value as >400m2/kg 4. Activity index > 75(7days), 95(28days) 5. Density (g/cm3)>2.8 6. Fluidity: >90 7. So3 (%) around 0.1 8. Loss (%):