Process Development of Fly Ash-Based Geopolymer Mortars in View of the Mechanical Characteristics

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dc.authoridDogan-Saglamtimur, Neslihan/0000-0001-6287-6268
dc.authoridGunaydin, Kadir/0000-0002-3045-130X
dc.authoridTamer, Aykut/0000-0003-3257-3105
dc.contributor.authorOz, Hatice oznur
dc.contributor.authorDogan-Saglamtimur, Neslihan
dc.contributor.authorBilgil, Ahmet
dc.contributor.authorTamer, Aykut
dc.contributor.authorGunaydin, Kadir
dc.date.accessioned2024-11-07T13:34:33Z
dc.date.available2024-11-07T13:34:33Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis study aimed to determine the effects of design parameters, including the liquid/solid ratio (L/S), Na2SiO3/NaOH weight ratio, and curing temperature, on class F fly ash-based geopolymer composites. For this purpose, two disparate sources of fly ash were supplied from catalagzi (FA) and Isken Sugozu (FB) Thermal Power Plants in Turkey. Two different L/S ratios of 0.2 and 0.4 were used. The Na2SiO3/NaOH ratios in the alkaline solutions were 1, 1.5, 2, 2.5, and 3 by weight for each type of geopolymer mixture. Then, 40 different mixes were cured at two specific temperatures (70 degrees C and 100 degrees C) for 24 h and then preserved at room temperature until testing. Thereafter, the physical water absorption properties, apparent porosity, and bulk density were examined at 28 days on the hardened mortars. Additionally, compressive and flexural tests were applied to the geopolymers at 7, 28, and 90 days. It was found that the highest compressive strength was 60.1 MPa for the geopolymer manufactured with an L/S of 0.2 and Na2SiO3/NaOH ratio of 2. Moreover, the best thermal curing temperature for obtaining optimal strength characteristics was 100 degrees C for the FB.
dc.description.sponsorshipEuropean Commission [ELAC2015/T02-0721]; European Union; Turkish Scientific and Technological Research Council of Turkey (TUB.ITAK); Imperial College London Open Access Fund; [116Y549]
dc.description.sponsorshipThis study is a part of the project Development of Eco-Friendly Composite Materials based on a Geopolymer Matrix and Reinforced with Waste Fibers, funded by the European Commission, within the 7th Framework Program for Research and Technology Development (FP7), Topic #02: Waste Management, Recycling, and Urban Mining (Project No. ELAC2015/T02-0721), under the ERANet-LAC: Latin America, Caribbean, and European Union; and supported by a grant from the Turkish Scientific and Technological Research Council of Turkey (TUB.ITAK). The Turkish project number is 116Y549. Article Processing Charges was funded by Imperial College London Open Access Fund.
dc.identifier.doi10.3390/ma14112935
dc.identifier.issn1996-1944
dc.identifier.issue11
dc.identifier.pmid34072388
dc.identifier.scopus2-s2.0-85107792528
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/ma14112935
dc.identifier.urihttps://hdl.handle.net/11480/16046
dc.identifier.volume14
dc.identifier.wosWOS:000661227500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofMaterials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectenvironmentally friendly sustainable material
dc.subjectnumerical analysis
dc.subjectfly ash
dc.subjectgeopolymer
dc.subjectSEM-EDX
dc.subjectTGA-DTA
dc.subjectXRD
dc.subjectreuse
dc.subjectwaste
dc.titleProcess Development of Fly Ash-Based Geopolymer Mortars in View of the Mechanical Characteristics
dc.typeArticle

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