Ground granulated blast-furnace slag
Low Carbon Concrete Routemap, Setting the agenda for a path to net zero, draft for consultation published by the Institution of Civil Engineers in 2021, defines ground granulated blast-furnace slag (GGBS) as: ‘An SCM (Secondary Cementitious Materials) whose main use is in concrete as a Portland cement replacement to help reduce permeability and improve durability. It is a by-product from the blast-furnaces used to make iron.’
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