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und Roheisen GmbH, Duisburg.

Slag - environmentally friendly and cost-effective

DK blast furnace slag is characterised by its high environmental friendliness and cost-effectiveness.


It consists of minerals that are also available in natural stones, and therefore are absolutely environmentally friendly. At the same time, they offer our customers better product properties compared to other raw materials. The quantities required decrease, whereas the cost-effectiveness continues increasing.

The DK blast furnace slag consists of non-metallic components that accumulate in the bottom blast furnace area during the pig iron production. Due to the slow cooling down of the slag in the slag bed, a strong and weather-resistant rock is built which proves to be an ideal material for the building industry.