Very high strength Na2SiO3 and NaOH activated fly ash based geopolymer mortar

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dc.contributor.author Atabey, İsmail İsa
dc.contributor.author Karahan, Okan
dc.contributor.author Bilim, Cahit
dc.contributor.author Atiş, Cengiz Duran
dc.date.accessioned 2021-11-29T06:46:33Z
dc.date.available 2021-11-29T06:46:33Z
dc.date.issued 2020
dc.identifier.citation Atabey, İ. İ., Karahan, O., Bilim, C., & Atis, C. D. (2020). Very high strength Na2SiO3 and NaOH activated fly ash based geopolymer mortar. Cement Wapno Beton, 25(5). tr_TR
dc.identifier.uri http://hdl.handle.net/20.500.11787/5963
dc.description.abstract The paper presents the results of research of high-strength geo-polymer mortars, prepared from two types of siliceous fl y ash. Sodium hydroxide and mixtures of sodium hydroxide and sodium silicate in the form of solutions were used as activators. The activator was added in amounts ranging from 6 to 15% NaOH in relation to the ash mass. After preparation, the mortars were cured at the temperature of 60ºC, 80ºC or 100ºC for various times, from 24 hours to 7 days. Increasing the addition of sodium or a higher curing temperature increase the fl exural and compressive strength of the tested mortars. The best results - compressive and fl exural strength of 100 MPa and 20 MPa, respectively, were obtained for mortar activated with 15% sodium hydroxide, cured at 100°C for 24 hours. Blended activator – sodium silicate and sodium hydrox-ide also allowed to obtain high strengths, but lower than sodium hydroxide alone. Extending the curing time at high temperature beyond 24 hours did not produce favourable results in most cases. Fly ash geopolymer mortar, activated with 15% NaOH by mass of ash, cured at 100°C for 24 hours, showed about 18% reduc-tion in greenhouse gas emissions compared to common Portland cement mortar. tr_TR
dc.language.iso eng tr_TR
dc.publisher Cement Wapno Beton tr_TR
dc.relation.isversionof https://doi.org/10.32047/CWB.2020.25.4.4 tr_TR
dc.rights info:eu-repo/semantics/openAccess tr_TR
dc.subject Alkali activation tr_TR
dc.subject Fly ash tr_TR
dc.subject Geopolymer tr_TR
dc.subject High-strength mortars tr_TR
dc.subject Thermal curing tr_TR
dc.title Very high strength Na2SiO3 and NaOH activated fly ash based geopolymer mortar tr_TR
dc.type article tr_TR
dc.relation.journal Cement Wapno Beton tr_TR
dc.contributor.department Balıkesir Üniversitesi/Havran meslek yüksekokulu/muhasebe ve vergi bölümü/muhasebe ve vergi uygulamaları pr. tr_TR
dc.contributor.authorID 17922 tr_TR
dc.identifier.volume 25 tr_TR
dc.identifier.issue 4 tr_TR
dc.identifier.startpage 292 tr_TR
dc.identifier.endpage 305 tr_TR


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