GBFS / GGBFS

Granulated Blast Furnace Slag or GBFS is the residue of combustion in the furnace of the steel refining process. It is obtained by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy substance.

GGBFS or Ground Granulated Blast Furnace Slag is formed when GBFS is further processed or grounded using conventional cement clinker grinding technology.

Uses and Benefits of GBFS/GGBFS

Uses :

• GGBFS or GBFS is the most used raw material in cement industry to make slag cement.
• Lightweight fill
• Raw material for the manufacture of glass
• GBFS can be used as a substitute for sand in building materials
• GGBFS can be used as a replacement for Portland cement

Benefits :

• Reduced chloride permeability
• Improved resistance to sulphate attack
• Reduced heat of hydration in mass concrete
• Better workability
• Environmental friendly
• Improved compressive and flexural strength
• Reduced alkali-silica reaction
• Less bleeding
• Long slump retention
• Better reflectance
• Greater durability and thermal resistance
• Brighter color and reduced electricity