About GGBS
Our portfolio of innovative, high-quality products includes Ground
Granulated Blast Furnace Slag (GGBS), a cement addition providing an optimal mix of environmental
benefits and performance.
A by-product of the iron industry, GGBS is made when blast
furnace slag is finely ground into a powder. It possesses hydraulic properties, which means it can
partially replace Portland cement in concrete mixtures. In fact, GGBS can replace 70% or more of
Portland cement.
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