Microstructural investigation and strength properties of structural lightweight concrete produced with Zeolitic tuff aggregate

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dc.authoridtekin, ilker/0000-0001-7400-4790
dc.contributor.authorPekgoz, Mahfuz
dc.contributor.authorTekin, Ilker
dc.date.accessioned2024-09-29T15:57:44Z
dc.date.available2024-09-29T15:57:44Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn this study, physical, mechanical, and microscopic investigations were carried out on structural lightweight concretes (LWC) produced with zeolitic aggregate. Zeolitic tuff aggregate, 300 kg/m(3), and 400 kg/m(3) dosages OPC and 0.70 and 0.45 water/cement ratios were used in LWC productions. An optical microscope method was used to determine the aggregate-cement interface zone (ITZ) on the hardened LWC. SEM analyses were performed on the specimens to determine microstructural properties as well. Moreover, water absorption, capillary suction, and compressive strength tests were carried out. The experimental results showed that ITZ thickness and compressive strength are significantly depend on the cement dosage and w/c ratio in structural LWC. ITZ thicknesses were measured 20-33% less in LWC produced with a 0.45 w/c ratio and the 400 kg/m(3) cement dosage. On the SEM analyses, dense CH and ettringite formations were observed at the early age of all LWC in high w/c ratios. However, on the 28th day, well-formed CSH structures were observed in large areas with lower w/c ratios.en_US
dc.identifier.doi10.1016/j.jobe.2021.102863
dc.identifier.issn2352-7102
dc.identifier.scopus2-s2.0-85107952550en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jobe.2021.102863
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4988
dc.identifier.volume43en_US
dc.identifier.wosWOS:000701712400002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Building Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLightweight concreteen_US
dc.subjectZeolitic tuffen_US
dc.subjectITZen_US
dc.subjectSEMen_US
dc.subjectOptical microscopeen_US
dc.titleMicrostructural investigation and strength properties of structural lightweight concrete produced with Zeolitic tuff aggregateen_US
dc.typeArticleen_US

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