What is Ground Granulated Blast Furnace Slag (GGBFS)

Author：JessicaDate：2025-7-22

GGBFS is a byproduct of the iron and steel industry, specifically from the production of iron in blast furnaces.

It is obtained by rapidly quenching molten slag from the blast furnace with water or steam, which results in the formation of glassy granules. These granules are then ground into a fine powder, which is GGBFS.

GGBFS contains various oxides, including calcium, silicon, aluminum, and magnesium, making it an ideal material for use in concrete. When added to concrete as a partial replacement for Portland cement, GGBFS imparts several beneficial properties. ↑Previous [ Properties of GGBFS in Concrete ]
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