Steel & Cement Materials

Granulated Blast Furnace Slag (GBFS)

Commodity Profile

Granulated Blast Furnace Slag (GBFS)

GBFS is the glassy byproduct obtained by rapidly quenching molten blast furnace slag in water. It exhibits excellent latent hydraulic properties, making it prime cement feedstock.

Sourcing & Shipping Logistics
Procured from state-owned and private blast furnace plants in India. Shipped in bulk to grinding mills for cement blending.
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Typical Technical Specifications

Quality Parameter Guaranteed Range / Value
Glass Content (X-Ray) 95% Min
Chemical Activity Index 1.0 Min
Moisture Content 8.0% - 12.0% Max
Bulk Density (Loose) 1.0 - 1.1 g/cm³
Calcium Oxide (CaO) 38.0% - 41.0%
Silicon Dioxide (SiO2) 32.0% - 35.0%
Aluminium Oxide (Al2O3) 11.0% - 14.0%
Physical Sizing 0mm - 5mm granular

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