Development of Eco-Efficient Fly Ash-Based Alkali-Activated and Geopolymer Composites with Reduced Alkaline Activator Dosage

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dc.authoridGokce, H. Suleyman/0000-0002-6978-0135
dc.authoridTuyan, Murat/0000-0003-2149-8437
dc.contributor.authorGokce, H. S.
dc.contributor.authorTuyan, M.
dc.contributor.authorRamyar, K.
dc.contributor.authorNehdi, M. L.
dc.date.accessioned2024-10-04T18:49:29Z
dc.date.available2024-10-04T18:49:29Z
dc.date.issued2020
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe eco-efficiency and economy of geopolymer composites largely depend on their alkaline activator dosage. In this study, the effect of applying a pre-setting pressure and variation of the aggregate-to-fly ash ratio on the alkaline solution dosage and mechanical strength of fly ash-based geopolymer composites was explored. It is shown that through control of the aggregate-to-ash ratio and application of pre-setting pressure, compressive strength could be increased by 102% and 86% for Class F fly ash-based geopolymer and alkali-activated Class C fly ash-based mixture, respectively. The total alkaline solution consumption could be reduced from 718 to 188 kg/m(3) and from 769 to 262 kg/m3 for Class F fly ash-based geopolymer and alkali-activated Class C fly ash-based mixture, respectively. The proposed method reduced the alkaline solution consumption per compressive strength (6.2 kg.m(-3).MPa-1) by up to 85% compared to that of the reference manually consolidated control geopolymer. The findings demonstrate that fly ash-based geopolymers could be made more sustainable and eco-efficient through tailored production techniques. (C) 2019 American Society of Civil Engineers.en_US
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0003017
dc.identifier.issn0899-1561
dc.identifier.issn1943-5533
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85076635806en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1061/(ASCE)MT.1943-5533.0003017
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3177
dc.identifier.volume32en_US
dc.identifier.wosWOS:000502814800022en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAsce-Amer Soc Civil Engineersen_US
dc.relation.ispartofJournal of Materials in Civil Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFly ashen_US
dc.subjectGeopolymeren_US
dc.subjectAlkaline solutionen_US
dc.subjectAggregate-to-ash ratioen_US
dc.subjectPre-setting pressureen_US
dc.subjectCompressive strengthen_US
dc.subjectPore structureen_US
dc.titleDevelopment of Eco-Efficient Fly Ash-Based Alkali-Activated and Geopolymer Composites with Reduced Alkaline Activator Dosageen_US
dc.typeArticleen_US

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