Ground Granulated Blast Furnace Slag (GGBFS)

Ground Granulated Blast Furnace Slag (GGBFS)

GGBFS formed when granulated blast furnace slag (GBFS) is further processed or ground using conventional cement clinker grinding technology. On a casual examination, GGBFS can be off-white in appearance and could pass for a powder fineness typically between 380m2/kg – 420m2/kg. GGBFS is typically used in activation of granular pavement materials and as a cementitious material in the manufacture of concrete, particularly where resistance to aggressive ground, water and aggressive environmental conditions are present.

As a general cementitious replacement 25 – 50% for Portland Cement in concrete construction.

As a significant cementitious replacement min 65% for Portland Cement where long term durability in aggressive ground, water or air environments are required.

As a high cementitious replacement > 80% in special grout mixes.

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