Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3
slag does not have the hydraulic properties of water-cooled slag. Granulated blast furnace slag was first developed in Germany in 1853 (Malhotra 1996). Ground slag has been used as a cementitious material in concrete since the begin-ning of the 1900s (Abrams 1925). Ground granulated blast-furnace slag, when used in general purpose concrete in
