Ground Granulated Blast Furnace Slag
GGBFS is 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.
After molten slag has been quenched rapidly by passing it through a trough of high pressure, high volume water sprays, the heat energy contained in the molten slag causes it to explode and instantly form granulated blast furnace slag (GBFS).
GBFS is then further processed or ground using conventional cement clinker grinding technology to form GGBFS.
