Synergic effect of fly ash and calcium aluminate cement on the properties of pumice-based geopolymer mortar

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dc.contributor.authorKaraaslan, Cemal
dc.contributor.authorYener, Engin
dc.contributor.authorBagatur, Tamer
dc.contributor.authorPolat, Riza
dc.contributor.authorGul, Rustem
dc.contributor.authorAlma, Mehmet Hakki
dc.date.accessioned2024-04-24T16:11:10Z
dc.date.available2024-04-24T16:11:10Z
dc.date.issued2022
dc.departmentDicle Üniversitesien_US
dc.description.abstractThis paper reveals the synergic effect of fly ash (FA) and calcium aluminate cement (CAC) on the properties of pumice-based geopolymer mortars. Geopolymer mortar samples produced by replacing 0, 10, 20, and 30% of the pumice with FA and/or CAC are cured at ambient temperature, and 60C degrees. Physical properties, compressive strength (7, 28, and 90-days), durability, and microstructure of these samples are investigated in this study. While CAC and heat curing greatly reduce the setting time, FA has a limited effect on the setting time. However, both FA and CAC significantly increase the workability of the mortar mix. By replacing the optimum amount of the pumice with FA and CAC, the 7-day compressive strength of heat-cured geopolymer mortars can achieve 68.0 MPa. On the other hand, CAC significantly increases the compressive strength of the geopolymer mortars and their resistance to the wetting-drying and seawater. In addition, the FA has a limited effect on the enhancement of the mechanical properties and durability of the geopolymer mortars. Efflorescence is slightly reduced by FA and CAC additives, however, is greatly reduced by heat curing. The SEM/EDS show that CAC creates C-A-S-H gel and together with FA they reduce cracks and voids in the geopolymer matrix. The findings reveal that the properties of both fresh and hardened geopolymer mortars can be improved by replacing pumice with a suitable amount of FA and CAC.en_US
dc.description.sponsorshipIgdir University [MUF0720A17]en_US
dc.description.sponsorshipThe authors are grateful to the Igdir University for their financial support for the project (Project No: MUF0720A17).en_US
dc.identifier.doi10.1016/j.conbuildmat.2022.128397
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-85133907108
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2022.128397
dc.identifier.urihttps://hdl.handle.net/11468/15293
dc.identifier.volume345en_US
dc.identifier.wosWOS:000859048900004
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofConstruction and Building Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGeopolymeren_US
dc.subjectPumiceen_US
dc.subjectCalcium Aluminate Cementen_US
dc.subjectFly Ashen_US
dc.subjectWetting-Dryingen_US
dc.subjectDurabilityen_US
dc.subjectSurface Roughnessen_US
dc.titleSynergic effect of fly ash and calcium aluminate cement on the properties of pumice-based geopolymer mortaren_US
dc.titleSynergic effect of fly ash and calcium aluminate cement on the properties of pumice-based geopolymer mortar
dc.typeArticleen_US

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