2026-06-10T22:12:00Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/118302026-06-10T00:05:39Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Adediran, Adeolu d908b09d-5fbc-4396-966d-82135ce6be1f 600 Asaam, Nana 0fdc7802-195a-4d68-a8c5-8f2a8f43e247 600 Manso Morato, Javier 876 600 0000-0002-9145-3595 Avci, Erdi add435a0-3bf5-4026-b29b-c1d3ee86d8ec Perumal, Priyadharshini bff9936c-5c4c-4e6e-a8df-7ed33579d595 2026-06-09T11:25:13Z 2026-06-09T11:25:13Z 2026-05 2352-7102 https://hdl.handle.net/10259/11830 10.1016/j.jobe.2026.116374 Approximately 300,000 tons of municipal solid waste incineration bottom ash (BA) and 600,000 tons of fayalite slag (FS) are generated annually in Finland from metallurgical and incineration processes, with the majority of them disposed of in landfills or used in low-value applications. This study investigated the potential upcycling of FS and BA as sand replacements in cementbased mortars to avoid landfilling, conserve natural resources, and ensure efficient use of industrial residues. Standard sand (SS) was used as the main fine aggregate. The effect of replacing SS partly or wholly with either FS or BA was investigated through workability, compressive strength, ultrasonic pulse velocity (UPV), scanning electron microscope analysis, capillary water absorption, alkali–silica reaction (ASR), freeze-thaw cycles in water, and combined sodium sulfate and sodium chloride solution exposure. The aggregates’ leaching results were below the values stipulated by Finnish and EU regulations. Partial or full replacement of SS with either FS or BA resulted in lower workability. Full replacement of SS with FS resulted in comparable properties to the reference mix in terms of compressive strength, UPV, and capillary water absorption. Meanwhile, partial replacement of SS with FS resulted in higher compressive strength and UPV but reduced water absorption. In contrast, partial or full replacement of SS with BA resulted in lower compressive strength and UPV, as well as increased water absorption compared with the reference mix. All samples remained stable after exposure to freeze-thaw cycles in water. However, only the reference samples and samples containing 50% replacement of SS with either FS or BA were stable after exposure to freeze-thaw cycles in a combined sulfate and chloride solution, whereas those containing 100% FS or BA were completely degraded. Of all the aggregates, only FS satisfied the 14-day ASR requirements according to the ASTM C1260 standard, achieving a low expansion rate of 0.009%. This work was done as part of Ar2CorD project (NPA0100039) funded by Interreg Northern Periphery and Arctic. Adeolu Adediran gratefully acknowledges funding from Finnish Cultural Foundation for his postdoctoral research. The authors gratefully acknowledge the Centre for Material Analysis, University of Oulu, Finland for assistance with data analysis. application/pdf eng Elsevier Journal of Building Engineering. 2026, V. 127, art. 116374 https://doi.org/10.1016/j.jobe.2026.116374 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Fayalite slag Bottom ash Cement mortar Alkali–silica reaction Freeze-thaw Sulfate and chloride Construction application Residuos industriales-Reciclado Mortero (Materiales de construcción) Factory and trade waste-Recycling Cement Fayalite slag and municipal solid waste incineration bottom ash as sand replacement in cement mortar: Physical, mechanical, and durability properties info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Journal of Building Engineering 127 THUMBNAIL Adediran-JBE_2026.pdf.jpg Adediran-JBE_2026.pdf.jpg IM Thumbnail image/jpeg 4756 https://riubu.ubu.es/bitstream/10259/11830/4/Adediran-JBE_2026.pdf.jpg dd539bdcad1d5c623a15f9556295f2da MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 1362 https://riubu.ubu.es/bitstream/10259/11830/3/license.txt 5d013bfa6e473ff0db22cd82a4d71a70 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/11830/2/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 2 ORIGINAL Adediran-JBE_2026.pdf Adediran-JBE_2026.pdf application/pdf 12898348 https://riubu.ubu.es/bitstream/10259/11830/1/Adediran-JBE_2026.pdf 69a264b608c3772d9adfd7c403f121c6 MD5 1 10259/11830 oai:riubu.ubu.es:10259/11830 2026-06-10 02:05:39.161 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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