Ground granulated blast furnace slag (GGBFS), a byproduct of the iron and steel industry, is a
sustainable and high-performance material used in concrete production. Like fly ash, GGBFS serves
as a supplementary cementitious material (SCM) and offers several benefits in enhancing the quality
and sustainability of concrete.

DURABILITY: Concrete containing GGBFS exhibits improved resistance to aggressive environments. It
enhances the concrete’s resistance to sulfate attack, chloride ingress, and alkali-silica reaction (ASR),
making it suitable for use in marine environments and structures exposed to de-icing salts.
Reduced Permeability The fine particles of GGBFS fill the pores within the concrete matrix, reducing its permeability. This leads to lower water absorption and increased resistance to chemical penetration, further improving the durability and longevity of concrete structures.
Workability PLASTIC CONCRETE: GGBFS improves the workability of fresh concrete due to its smooth and spherical particle shape. This reduces the water demand and makes the concrete easier to handle and place.
Cost Efficiency
GGBFS can be a cost-effective alternative to Portland cement. By partially replacing cement with GGBFS, the overall material cost of concrete can be reduced, especially in large-scale
construction projects.