Effect of waste glass powder addition on properties of alkali-activated silica fume mortars

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dc.contributor.authorBostanci, Levent
dc.date.accessioned2024-03-13T10:34:59Z
dc.date.available2024-03-13T10:34:59Z
dc.date.issued2020
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractIn cement technology, sustainable-based politics demands the use of industrial by-products and waste - based materials. Glass powder (GP) and silica fume (SF) are excellent solid materials to develop a sustainable cementbased material due to a high content of silicon dioxide (SiO2) in their chemical compositions. This study focuses on the properties of alkali-activated silica fume (AASF) mortars containing waste glass powder (WGP). For this purpose, WGP was utilized as partial replacement of sand in AASF mortar mixtures at four levels: 0%, 15%, 30%, and 45% by weight. Displacement -controlled compressive and flexural strength tests were carried out on prismatic 40 x 40 x 160 mm test samples that had been cured for 2,7 and 28 days. The Mercury Intrusion Porosimetry (MIP) test and the thermal conductivity coefficient measurement were carried out following the compressive strength test on 28-day samples. The microstructure morphology and mineralogical properties of the mortar samples were studied by means of Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD), respectively. Experimental studies have shown that at a replacement level of 30%, WGP simultaneously improves the flexural strength of mortars by 12.65% and reduces the thermal conductivity coefficient by 30.88% under stable macro pores and transient capillary-micro pores formation in AASF pore structure. As an alternative to conventional cement mortar, WGP-incorporated AASF mortars attract a great deal of attention.en_US
dc.identifier.doi10.1016/j.jobe.2019.101154
dc.identifier.issn2352-7102
dc.identifier.scopus2-s2.0-85077045305en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jobe.2019.101154
dc.identifier.urihttps://hdl.handle.net/20.500.12662/4197
dc.identifier.volume29en_US
dc.identifier.wosWOS:000543785300037en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Building Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectWaste glass powderen_US
dc.subjectNa2CO3en_US
dc.subjectSilica fumeen_US
dc.subjectPore structureen_US
dc.subjectThermal conductivityen_US
dc.titleEffect of waste glass powder addition on properties of alkali-activated silica fume mortarsen_US
dc.typeArticleen_US

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