Use of recycled mortar as fine aggregates in pavement concrete applications

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dc.authoridŞahin, Hatice Gizem/0000-0002-8915-879X
dc.authoridMardani, Ali/0000-0003-0326-5015
dc.authoridŞAHİN, Hatice Gizem/0000-0002-8915-879X
dc.authoridAssaad, Joseph/0000-0002-2423-451X
dc.contributor.authorMardani, Ali
dc.contributor.authorHatungimana, Daniel
dc.contributor.authorYazici, Semsi
dc.contributor.authorSahin, Hatice Gizem
dc.contributor.authorAssaad, Joseph J.
dc.date.accessioned2024-08-31T07:50:14Z
dc.date.available2024-08-31T07:50:14Z
dc.date.issued2024
dc.departmentEge Üniversitesien_US
dc.description.abstractThe use of recycled aggregates derived from construction and demolition wastes increased in the concrete construction industry. While the coarse fraction (i.e., from 5 to 20 mm) was successfully recycled, the fine fraction (i.e., from 0 to 5 mm) is hardly recyclable given its heterogenous nature and poor physical properties. This paper assesses the feasibility of recycled mortar aggregate (RMA) in pavement concrete applications requiring superior resistance to weathering and wearing effects. Three concrete strength grade categories prepared with different water -to -binder ratios (w/b) of 0.4, 0.5, and 0.6 are investigated; the natural sand replacement levels by RMA varied from 0 % to 60 % by volume, at 20 % increment rates. Test results showed that the detrimental RMA effect on durability depends on the concrete strength category, requiring proper adjustment of the maximum replacement rate to maintain acceptable losses in performance. Hence, the higher strength grade mixtures prepared with 0.4 w/b were found to yield significant drops in durability reaching 25 % in water sorptivity, 18 % in abrasion, and 22 % due to freeze/ thaw (F/T) cycles. In contrast, the lower strength grade concrete made with 0.6 w/b exhibited marginal degradation in strength and durability, despite the incorporation of 60 % RMA. The resulting losses in sorptivity, abrasion, and F/T cycles were limited to 13 %, 8 %, and 12 %, respectively.en_US
dc.description.sponsorshipTUBITAK 2211-A programen_US
dc.description.sponsorshipThe fourth author (Hatice Gizem S,ahin) wishes to acknowledge the scholarship provided by the TUBITAK 2211-A program.en_US
dc.identifier.doi10.1016/j.heliyon.2024.e24264
dc.identifier.issn2405-8440
dc.identifier.issue2en_US
dc.identifier.pmid38268825en_US
dc.identifier.scopus2-s2.0-85182558019en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.heliyon.2024.e24264
dc.identifier.urihttps://hdl.handle.net/11454/105159
dc.identifier.volume10en_US
dc.identifier.wosWOS:001164905900001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherCell Pressen_US
dc.relation.ispartofHeliyonen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240831_Uen_US
dc.subjectRecycled Mortar Aggregatesen_US
dc.subjectPavement Concreteen_US
dc.subjectAbrasionen_US
dc.subjectFreeze/Thawen_US
dc.subjectSustainabilityen_US
dc.titleUse of recycled mortar as fine aggregates in pavement concrete applicationsen_US
dc.typeArticleen_US

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