64712 2025 eng lecture 0 -- -- -- Increasing amounts of new types of EAFS from the DRP-EAF-route and still significant amounts of BOFS from the DRP-SAF-BOF-route will be produced while BFS will vanish. In two BMBF funded research projects, BAM and FEhS examine the application of slags from future steel production in the cement industry. The project “SlagCEM” investigated the recovery of iron from BOFS while producing a mineral product with good cementitious properties. The reduction of BOFS to recover metallic iron along with the generation of a clinker-like material for the cement industry increases the viscosity of the BOFS. This would require a process at unfeasibly high temperatures of >1.700 °C. Therefore, SlagCEM aimed to modify the BOFS to reduce the viscosity to suitable ranges at lower temperatures of ~1.600 °C. A demonstration trial (20 tons) was carried out and the potential for substitution of OPC was determined. DRI-EOS investigates the utilization of increasing amounts of DRI-based EAFS in the cement industry to compensate the reduced production of GBFS. This requires an adjustment of the slag’s chemical composition and a rapid quenching to create an amorphous structure with latent hydraulic characteristics. The project studies the behavior of the modified slag during the metallurgical process and during solidification, any possibly negative impact on the cementitious or environmental properties as well as the potential to recover metals such as Fe, Cr, Mo and V. The final results of the project “SlagCEM”, finished in 2024, as well as the current state and insights of the project “DRI-EOS”, started in July 2022, shall be presented in this talk. 9th International Slag Valorisation Symposium Leuven, Belgium 08.04.2025 11.04.2025 0 publish false true Joachim Schneider eng uncontrolled Steel slags eng uncontrolled Basic oxygen furnace (BOF) eng uncontrolled Electric arc furnace (EAF) eng uncontrolled Cement eng uncontrolled Slag valorisation Ingenieurbau Sanitär- und Kommunaltechnik; Umwelttechnik 4 Material und Umwelt 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung Infrastruktur Umwelt Circular Economy Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation Green Intelligent Building