Effect of ceramic waste powder content and sodium hydroxide molarity on the residual mechanical strength of alkali-activated mortars

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dc.authoridAygormez, Yurdakul/0000-0001-7405-2450
dc.contributor.authorErol, Ferhat
dc.contributor.authorAl-mashhadani, Mukhallad M.
dc.contributor.authorAygormez, Yurdakul
dc.contributor.authorNis, Anil
dc.date.accessioned2024-09-11T19:51:08Z
dc.date.available2024-09-11T19:51:08Z
dc.date.issued2023
dc.departmentİstanbul Gelişim Üniversitesien_US
dc.description.abstractIn the study, the effects of various ceramic waste powder (CWP) additions (5, 10, and 15%) and sodium hydroxide (SH) molarity (8 M and 16 M) on the residual mechanical properties of different ambient-cured alkaliactivated mortar (AAM) samples were investigated under the elevated temperatures (300, 600, and 900 degrees C) and freeze-thaw (100 cycles) attacks. The fresh (flowability, initial and final setting time, water absorption, and void ratio) and hardened (compressive and flexural strength, ultrasonic pulse velocity, and weight loss) state performances were evaluated. Also, XRD and SEM analyses were carried out. The findings pointed out that flowability enhanced up to 15% of CWP replacements. The initial and final setting time was reduced with higher molarity, while improved with further CWP incorporations. The water absorption and void ratio decreased with higher CWP incorporations and SH molarity. Moreover, mechanical strengths increased with time, which were found to be more with a higher CWP replacement ratio and SH molarity. After elevated temperature, the average compressive strength losses were about 50% at 600 degrees C and 85% at 900 degrees C, while average flexural strength losses were about 70% at 600 degrees C and 85% at 900 degrees C. Meanwhile, similar residual compressive strengths were obtained at elevated temperatures, irrespective of the SH molarity and CWP incorporations. However, both CWP incorporation and high SH molarity slightly enhanced the residual flexural strengths. After freeze-thaw attacks, an average of 23% compressive strength loss and 29% flexural strength loss was obtained, and almost similar mechanical strength losses were observed with varying SH molarity and CWP replacement ratio.en_US
dc.description.sponsorshipIstanbul Gelisim University [HD-190220-AN]; Istanbul Gelisim University scientific research coordination unit [HD-190220-AN]en_US
dc.description.sponsorshipThis study was supported by the research fund of Istanbul Gelisim University. The authors would like to express their special thanks to the Istanbul Gelisim University scientific research coordination unit for the financial support to this project (Project number: HD-190220-AN) .en_US
dc.identifier.doi10.1016/j.matchemphys.2023.128403
dc.identifier.issn0254-0584
dc.identifier.issn1879-3312
dc.identifier.scopus2-s2.0-85169806405en_US
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2023.128403
dc.identifier.urihttps://hdl.handle.net/11363/7741
dc.identifier.volume309en_US
dc.identifier.wosWOS:001074733400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Chemistry And Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240903_Gen_US
dc.subjectAlkali-activated mortaren_US
dc.subjectFreeze-thawen_US
dc.subjectCompressive strengthen_US
dc.subjectElevated temperaturesen_US
dc.subjectFlexural strengthen_US
dc.subjectUltrasonic pulse velocityen_US
dc.subjectResidual strengthen_US
dc.titleEffect of ceramic waste powder content and sodium hydroxide molarity on the residual mechanical strength of alkali-activated mortarsen_US
dc.typeArticleen_US

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