Valuable product from steel industry slag – components created as a result of piloting tested in Finland and Spain

VTT and Renotech Oy developed a method for the partial replacement of refractory ceramic raw material with slag from the steel industry.Europe’s steel industry produced around 21.4 million tons of slag in 2012. A quarter of this was not re-used. Slag is traditionally used in road building, for example as insulating material in the subbase of roads. The RESLAG project funded by the EU developed methods of using slag in various energy industry applications. Finnish company Renotech Oy led one of the piloting projects under RESLAG and developed fire-resistant or refractory ceramics