Utilization of andesite processing wastewater treatment sludge as admixture in concrete mix

Basit Öğe Kaydı
dc.contributor.authorSogancioglu, Merve
dc.contributor.authorYel, Esra
dc.contributor.authorYilmaz-Keskin, Ulku Sultan
dc.date.accessioned2020-03-26T18:44:24Z
dc.date.available2020-03-26T18:44:24Z
dc.date.issued2013
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe dried physicochemical sludge from the coagulation-flocculation treatment of an andesite processing plant wastewater was used as concrete admixture in powder form. Various physicochemical sludges obtained with various coagulant/flocculants (alum, FeCl3, and sepiolite) were experienced dry particulate (powder) form of the sludge was replaced at 0.5-1.5% w/w of the cement for 250 kg/m(3) cement dosage. The admixture doses were complied with local standard. Slump tests were conducted on fresh concrete, and compressive strengths were measured for 7 and 28 days hardened concrete samples. Physical properties, namely freeze/thaw resistance, water absorption, capillary suction, void ratio and porosity were determined at the end of 28 days for the hardened concrete samples. The concrete consistency (slump) was improved up to 16-18 cm from 14.5 cm by the admixture. The best compressive strength was achieved with 0.5% w/w for admixtures. The admixture sludges obtained with organic flocculants were worse than the other admixtures. The structural changes after freeze/thaw tests were very close to the reference concrete (concrete without admixture); only the capilary suction had increased. The results confirmed that up to 0.5% of physicochemical sludge can be replaced with cement in concrete for use in certain non-load bearing structures that require medium strength concrete. (C) 2013 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipSelcuk University Scientific Research Foundation ProjectsSelcuk University [11101008]en_US
dc.description.sponsorshipThis study was financially supported by Selcuk University Scientific Research Foundation Projects under Grant No. 11101008.en_US
dc.identifier.doi10.1016/j.conbuildmat.2013.04.035en_US
dc.identifier.endpage155en_US
dc.identifier.issn0950-0618en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage150en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.conbuildmat.2013.04.035
dc.identifier.urihttps://hdl.handle.net/20.500.12395/29988
dc.identifier.volume46en_US
dc.identifier.wosWOS:000321168900019en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCI LTDen_US
dc.relation.ispartofCONSTRUCTION AND BUILDING MATERIALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAdmixtureen_US
dc.subjectAndesiteen_US
dc.subjectConcreteen_US
dc.subjectMechanical propertiesen_US
dc.subjectPhysical propertiesen_US
dc.titleUtilization of andesite processing wastewater treatment sludge as admixture in concrete mixen_US
dc.typeArticleen_US

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