The mechanical and microstructural properties of Li2SO4, LiNO3, Li2CO3 and LiBr added mortars exposed to alkali-silica reaction

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dc.contributor.authorDemir, Ilhami
dc.contributor.authorArslan, Metin
dc.date.accessioned2020-06-25T18:07:19Z
dc.date.available2020-06-25T18:07:19Z
dc.date.issued2013
dc.departmentKırıkkale Üniversitesi
dc.descriptionDemir, Ilhami/0000-0002-8230-4053
dc.description.abstractAim of this study intends analyzing the effects of lithium additives on fresh and hardened cement mortars. In this study, mortar specimens were prepared by adding four types of additives (Li2SO4, LiNO3, Li2CO3 and LiBr) to the mixing water of the cement at 0.5%, 1%, 1.5%, 2%, 2.5% and 3% proportions by weight. The Alkali-silica reaction (ASR) of these mixtures was explored. The effects of Li2SO4, LiNO3, Li2CO3 and LiBr, which are used to control ASR induced expansion, on expansion and mechanical properties were determined. ASTM C 1260 experiment standard was used to find out the reactivity of aggregate and cement mixtures. In this experimental study, the morphology and the chemical composition of specimens exposed to ASR effect was examined by means of scanning electron microscope (SEM) and Energy Dispersive Spectroscopy (EDS). Fourteen-day readings conducted in the experimental study showed that the average maximum length change of the reference mortar bar was 0.34%, whereas the lowest average length change was 0.023% of the mortar bar with 3% Li2CO3 additive. Among the mortars that had undergone ASR, mortars containing 3% LiNO3 experienced the least strength loss. As observed in the SEM image, EDX done on dense and wide ASR cracked areas pointed to high ratios of calcium oxide and silica oxide. (C) 2013 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.conbuildmat.2012.12.059
dc.identifier.endpage77en_US
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-84873618833
dc.identifier.scopusqualityQ1
dc.identifier.startpage64en_US
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2012.12.059
dc.identifier.urihttps://hdl.handle.net/20.500.12587/5542
dc.identifier.volume42en_US
dc.identifier.wosWOS:000317443100010
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofConstruction And Building Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlkali-silica reactionen_US
dc.subjectSEMen_US
dc.subjectEDSen_US
dc.subjectLi2SO4en_US
dc.subjectLiNO3en_US
dc.subjectLi2CO3en_US
dc.subjectLiBren_US
dc.subjectCompressive and flexural strengthen_US
dc.titleThe mechanical and microstructural properties of Li2SO4, LiNO3, Li2CO3 and LiBr added mortars exposed to alkali-silica reactionen_US
dc.typeArticle

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