Model uncertainty in diffusion coefficient for chloride ingress into concrete

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dc.contributor.authorKonečný, Petrcs
dc.contributor.authorHorňáková, Mariecs
dc.contributor.authorLehner, Petrcs
dc.contributor.authorRovnaníková, Pavlacs
dc.contributor.authorSýkora, Miroslavcs
dc.coverage.issue1cs
dc.coverage.volume31cs
dc.date.issued2021-08-17cs
dc.description.abstractDiffusion coefficient for the chloride ingress into concrete is a key parameter describing the resistance against chloride penetration into the concrete. Consequently, it is an important aspect of the durability of reinforced concrete structures endangered by chloride-induced corrosion. The diffusion coefficient may be used for the direct assessment of the concrete quality with respect to chloride ingress and with respect to the numerical analysis of the durability of reinforced concrete structures. To estimate the diffusion coefficient, the computation based on the Second Fick's Law model and approximation of chloride profile from destructive penetration tests is usually utilised. Semi-destructive or non-destructive electrochemical tests provide estimates of the diffusion coefficient. The study reveals that (a) the resistivity readings provide a higher estimate for diffusion coefficient in comparison to short-time field exposures that seem to be associated with large uncertainty for exposure periods shorter than one year; (b) electrical resistivity measurements show significantly lower variation com-pared to the estimates based on chloride profiles. (C) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSID 2020 Organizers.en
dc.formattextcs
dc.format.extent147-153cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Structural Integrity. 2021, vol. 31, issue 1, p. 147-153.en
dc.identifier.doi10.1016/j.prostr.2021.03.023cs
dc.identifier.issn2452-3216cs
dc.identifier.orcid0000-0002-6732-788Xcs
dc.identifier.other177198cs
dc.identifier.researcheridAAF-7443-2019cs
dc.identifier.scopus6506551687cs
dc.identifier.urihttp://hdl.handle.net/11012/204057
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Structural Integritycs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2452321621000263cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2452-3216/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectdiffusion coefficienten
dc.subjectchloride ingressen
dc.subjectreinforced concrete structureen
dc.subjectelectro-chemical testsen
dc.subjectcalibrationen
dc.titleModel uncertainty in diffusion coefficient for chloride ingress into concreteen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177198en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:44:24en
sync.item.modts2025.01.17 15:22:16en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
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