Evaluation of Alkali-Silica Reaction by Concrete Microbar Test

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dc.contributor.authorAndic-Cakir, Oezge
dc.contributor.authorCopuroglu, Oguzhan
dc.contributor.authorRamyar, Kambiz
dc.date.accessioned2019-10-27T20:19:05Z
dc.date.available2019-10-27T20:19:05Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study investigates different aspects of the proposed concrete microbar test that evaluates alkali-silica reaction expansions by using aggregate having particles size between 4.75 and 12.5 mm (No. 4 and 1/2 in.), a water-cement ratio (w/c) of 0.33, and an aggregate-cement ratio of 1:1. The concrete microbar test method was modified by using different aggregate gradations. Considering no-fines mixtures, increasing the coarsest aggregate size fraction in the coarse aggregate decreased the alkali-silica reaction expansions. However, expansions were increased by the addition of fine aggregate to concrete microbar mixtures. The alteration of w/c in the practical range for these mixtures did not strongly affect the expansion values. The effects of some supplementary cementing materials (fly ash, natural pozzolan, and natural zeolite powder) on ASR expansions were studied by using the concrete microbar test and the accelerated mortar bar test method. Both of the accelerated test methods revealed comparable expansions in evaluating the effect of supplementary cementing materials on alkali-silica reaction expansions.en_US
dc.description.sponsorshipThe Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); Ege University Science and Technology Research Center (EBILTEM)Ege Universityen_US
dc.description.sponsorshipThe authors would like to acknowledge The Scientific and Technological Research Council of Turkey (TUBITAK) and Ege University Science and Technology Research Center (EBILTEM) for their financial support.en_US
dc.identifier.endpage191en_US
dc.identifier.issn0889-325X
dc.identifier.issn0889-325Xen_US
dc.identifier.issue2en_US
dc.identifier.startpage184en_US
dc.identifier.urihttps://hdl.handle.net/11454/41312
dc.identifier.volume106en_US
dc.identifier.wosWOS:000264581100011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAmer Concrete Insten_US
dc.relation.ispartofAci Materials Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectaggregate gradationen_US
dc.subjectalkali-silica reactionen_US
dc.subjectconcrete microbar testen_US
dc.subjectsupplementary cementing materialsen_US
dc.subjectwater-cement ratioen_US
dc.titleEvaluation of Alkali-Silica Reaction by Concrete Microbar Testen_US
dc.typeArticleen_US

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