Engineering properties and thermal conductivity of lightweight concrete with polyester-coated pumice aggregates

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dc.contributor.authorTuncer, Metin
dc.contributor.authorBideci, Alper
dc.contributor.authorBideci, Ozlem Salli
dc.contributor.authorComak, Bekir
dc.contributor.authorDurmus, Gokhan
dc.date.accessioned2025-10-11T20:48:00Z
dc.date.available2025-10-11T20:48:00Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractPumice aggregates stand out with their low density and high porosity. However, their high water retention capacity and low mechanical strength are the primary disadvantages limiting their use in lightweight concrete production. In this study, pumice aggregates with particle sizes ranging from 4 to 16 mm were coated with polyester, known for its superior adhesion and insulation properties, to produce polyester-coated pumice aggregates. Subsequently, five different lightweight concrete mixtures were prepared using 450 kg/m(3) cement, incorporating coated and non-coated pumice aggregates as coarse aggregates at replacement ratios of 0, 25, 50, 75, and 100%. Aggregate tests included specific gravity and water absorption, while fresh concretes were evaluated for unit weight and slump. Hardened concretes were tested for dry unit weight, water absorption, ultrasonic pulse velocity (UPV), compressive strength, freeze-thaw resistance, and thermal conductivity. The results revealed that the polyester coating increased the specific gravity of pumice aggregates by up to 45% and reduced water absorption by 85%. The use of coated aggregates increased the unit weight of the concrete but resulted in a reduction in compressive strength and UPV. Despite a compressive strength reduction of up to 58% depending on the coated aggregate content, concrete specimens produced with polyester-coated aggregates exhibited the highest performance in terms of freeze-thaw resistance and thermal conductivity.en_US
dc.identifier.doi10.1515/secm-2025-0057
dc.identifier.issn0792-1233
dc.identifier.issn2191-0359
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-105010093839en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1515/secm-2025-0057
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21698
dc.identifier.volume32en_US
dc.identifier.wosWOS:001495417400001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDe Gruyter Poland Sp Z O Oen_US
dc.relation.ispartofScienceand Engineering of Composite Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectpumiceen_US
dc.subjectcoated aggregatesen_US
dc.subjectlightweight concreteen_US
dc.subjectthermal propertiesen_US
dc.subjectfreeze-thaw resistanceen_US
dc.titleEngineering properties and thermal conductivity of lightweight concrete with polyester-coated pumice aggregatesen_US
dc.typeArticleen_US

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