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News Cemvision valorises EAF slag into GGBS-grade SCM

Cemvision valorises EAF slag into GGBS-grade SCM

Written by Global Cement staff 23 June 2025
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Sweden: Cemvision has developed a patent-pending beneficiation process to upcycle electric arc furnace (EAF) and basic oxygen furnace (BOF) slags into high-performance supplementary cementitious material (SCM), while recovering valuable metals.

Third-party testing found the material performs as well as or better than ground granulated blast-furnace slag (GGBS). Cemvision recovers 99% of the iron oxide content from EAF slag for reuse in steelmaking, as well as other metals like chromium.

The output will support Cemvision’s Re-Ment Massive and Rapid products as clinker-replacing SCMs. The process was piloted with metallurgical research institute Swerim.

Cemvision CEO Oscar Hållén said “This is a game-changer not only for the cement industry but for steel producers as well. Our process enables high-performing cement products from materials that would otherwise be treated as waste. With this innovation, we're proving that decarbonisation and circularity can go hand in hand, and at scale.”

Last modified on 25 June 2025
Published in Global Cement News
Tagged under
  • CemVision
  • Sweden
  • Slag
  • electric arc furnace
  • ground granulated blast furnace slag
  • supplementary cementitious materials
  • testing
  • circular economy
  • Europe
  • GCW715
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