Compressive Strength and Microstructure of Microwave-Cured Waste Brick Powder-Based Geopolymer Mortars

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dc.authorscopusid57195561040en_US
dc.contributor.authorGultekin, Adil
dc.date.accessioned2024-08-23T16:04:58Z
dc.date.available2024-08-23T16:04:58Z
dc.date.issued2024en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractIn this study, the compressive strength, microstructure and energy consumption of conventional oven- and microwave-cured waste brick powder-based geopolymers were investigated. For this purpose, the bricks that emerged as defective products during the factory production process were broken, ground, and used as aluminosilicate source. Samples with varying water contents were produced to examine the effect of the water/binder ratio. An alkali solution prepared with sodium silicate and sodium hydroxide was used as activator, and natural river sand was utilized as aggregate. The mixtures were cured in a household microwave oven at 300-W power level for 30, 45 and 60 min. Additionally, oven-cured specimen prepared at 90 degrees C for 1, 3 and 5 days was used for the sake of comparison. Samples with different water contents (ranging from 0.35 to 0.60) were produced to examine the effect of the water/binder ratio. The highest compressive strengths obtained in conventional and microwave curing mortars were 32 MPa and 36 MPa, respectively. The optimum water/binder ratio for oven and microwave curing was 0.4 regarding compressive strength, and lower rates reduced workability and strength. SEM images demonstrated that the microwave-cured paste had a more homogeneous structure and contained fewer cracks and pores than that of the oven-cured specimen at the same water/binder ratio. The results indicated that microwave-cured waste brick powder-based geopolymers with appropriate mixing ratios and curing regimes have higher compressive strengths and more homogeneous microstructures than their conventionally cured counterparts, with 94% energy savings.en_US
dc.description.sponsorshipDuzce University Scientific Research Projects Coordination Center; [2022.06.05.1356]en_US
dc.description.sponsorshipThis study was supported by the Duzce University Scientific Research Projects Coordination Center under Grant Number of 2022.06.05.1356.en_US
dc.identifier.doi10.1007/s40996-023-01330-4
dc.identifier.issn2228-6160
dc.identifier.issn2364-1843
dc.identifier.scopus2-s2.0-85182209023en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1007/s40996-023-01330-4
dc.identifier.urihttps://hdl.handle.net/20.500.12684/14437
dc.identifier.wosWOS:001141927100001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorGultekin, Adilen_US
dc.language.isoenen_US
dc.publisherSpringer Int Publ Agen_US
dc.relation.ispartofIranian Journal of Science and Technology-Transactions of Civil Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGeopolymeren_US
dc.subjectBrick powderen_US
dc.subjectSustainabilityen_US
dc.subjectMicrowave curingen_US
dc.subjectSEMen_US
dc.subjectEnergy savingen_US
dc.subjectAsh-Based Geopolymeren_US
dc.titleCompressive Strength and Microstructure of Microwave-Cured Waste Brick Powder-Based Geopolymer Mortarsen_US
dc.typeArticleen_US

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