20.500.12556/DiRROS-21217 Alkali-activated mineral residues in construction case studies on bauxite residue and steel slag pavement tiles This research aimed to investigate the potential of using alkali activation technology to valorize steel slag and bauxite residue for the production of high-performance pavement blocks. By utilizing these industrial by-products, the study seeks to reduce their environmental impact and support the development of sustainable construction materials. Lab-scale testing showed that bauxite pavers showed a decrease in mechanical strength with increasing replacement of ordinary Portland cement. Partial replacement up to 20% still exceeded 30 MPa in compressive strength. Steel slag-based pavers achieved the 30 MPa threshold required for the application with selected mix designs. Pilot-scale production-optimized formulations and standards testing, including freeze–thaw resistance, confirmed the technical viability of these products. Life cycle analysis indicated a 25–27% reduction in CO2 emissions for slag-based tiles compared to traditional concrete tiles. Moreover, using industrial residue reduced mineral resource depletion. This study examined the properties of the resulting alkali-activated binders, their ecological benefits, and their performance compared to conventional materials. Through a comprehensive analysis of these applications, our research promotes the circular economy and the advancement of sustainable construction products. alkali-activated materials building materials bauxite residue steel slag pavers alkalijsko aktivirani materiali gradbeni materiali boksitni ostanek žlindra alkalijsko aktivirani materiali gradbeni materiali boksitni ostanek jeklarska žlindra tlakovci true false true Molecular Diversity Preservation International Angleški jezik Slovenski jezik © 2025 by the authors. Licensee MDPI, Basel, Switzerland. Neznano 2025-01-17 03:34:51 2025-01-20 10:35:52 2025-01-21 03:36:50 0000-00-00 00:00:00 2025 0 0 1-18 str. iss. 2, [article no.] 257 Vol. 18 2025 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 2025-01-09 620.1/.2 1996-1944 10.3390/ma18020257 222369539 https://www.mdpi.com/1996-1944/18/2/257 1 a0f3c54a-d47b-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30113 RAZ_Kriskova_Lubica_2025.pdf RAZ_Kriskova_Lubica_2025.pdf 1 98AB0A35B9316534D3488979366DA9E9 6edd7f80b8c1f0a1234e6c3364f9d9a20da301d0439988d6d603e43614536c19 c5d5214d-d711-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30163 Zavod za gradbeništvo Slovenije Geološki zavod Slovenije 0 0 0