Optimizing and investigating durability performance of sandy soils stabilized with alkali activated waste tuff-fly ash mixtures

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dc.contributor.authorYilmaz, Fatih
dc.contributor.authorKuvat, Ahmet
dc.contributor.authorKamiloglu, Hakan Alper
dc.date.accessioned2024-10-04T18:52:34Z
dc.date.available2024-10-04T18:52:34Z
dc.date.issued2023
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe search for alternative environmentally-friendly materials to Portland cement is increasing its importance in geotechnical engineering as in other fields. In this study, alkali activated waste volcanic tuff (BT) and fly ash (FA) utilized as an alternative to conventional binders. The specific objectives of this paper were to, (1) optimize fly ash, waste tuff and activator content using Response Surface Methodology (RSM), (2) investigate the UCS performance of the optimum amount of alkali-activated fly ash and waste tuff mixtures as a binder in soil stabilization by comparing with various codes, (3) characterize the optimized parameters, (4) examine durability performances of the samples. Optimum binder and activator content and effect of waste tuff on strength characteristics were evaluated statistically with RSM approach. XRF, XRD, FTIR analyses were performed to verify the synthesized alkali activated material in the inner structures of the optimized samples. The durability and mechanical properties of samples stabilized with alkali activated binders against soaking condition, wetting-drying and were investigated. Destructive and non-destructive methods were employed to examine mechanical and durability characteristics. Unconfined compression strength, strength reduction ratio, soil deterioration, and water absorption capacity was taken into account to evaluate durability performances. UCS values of the stabilized samples were compared with limit UCS values suggested by several standards. As a result of the study it was determined that alkali activated waste tuff and fly ash mixture shows significant mechanical and durability performance in soil stabilization, and capable to use as an alternative to conventional non-green binders.en_US
dc.description.sponsorshipThis research was supported under Bayburt University Coordinatorship of Scientific Research Projects (Project No.: 2020/69002-01). [2020/69002-01]; Bayburt University Coordinatorship of Scientific Research Projectsen_US
dc.description.sponsorshipThis research was supported under Bayburt University Coordinatorship of Scientific Research Projects (Project No.: 2020/69002-01).en_US
dc.identifier.doi10.1007/s12046-023-02250-9
dc.identifier.issn0256-2499
dc.identifier.issn0973-7677
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85168778154en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/s12046-023-02250-9
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3561
dc.identifier.volume48en_US
dc.identifier.wosWOS:001093865400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Indiaen_US
dc.relation.ispartofSadhana-Academy Proceedings in Engineering Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlkali activationen_US
dc.subjectsoil stabilizationen_US
dc.subjectdurabilityen_US
dc.subjectwaste utilizationen_US
dc.subjectresponse surface methodology (RSM)en_US
dc.titleOptimizing and investigating durability performance of sandy soils stabilized with alkali activated waste tuff-fly ash mixturesen_US
dc.typeArticleen_US

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