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dc.contributor.authorWu, T.en_US
dc.contributor.authorTemizer, I.en_US
dc.contributor.authorWriggers, P.en_US
dc.date.accessioned2016-02-08T10:58:21Z
dc.date.available2016-02-08T10:58:21Z
dc.date.issued2014en_US
dc.identifier.issn0927-0256
dc.identifier.urihttp://hdl.handle.net/11693/26326
dc.description.abstractAlkali-Silica Reaction (ASR) is a complex chemical process that affects concrete structures and so far various mechanisms to account for the reaction at the material level have already been proposed. The present work adopts a simple mechanism, in which the reaction takes place at the micropores of concrete, with the aim of establishing a multiscale framework to analyze the ASR induced failure in the concrete. For this purpose, 3D micro-CT scans of hardened cement paste (HCP) and aggregates with a random distribution embedded in a homogenized cement paste matrix represent, respectively, the microscale and mesoscale of concrete. The analysis of the deterioration induced by ASR with the extent of the chemical reaction is initialized at the microscale of HCP. The temperature and the relative humidity influence the chemical extent. The correlation between the effective damage due to ASR and the chemical extent is obtained through a computational homogenization approach, enabling to build the bridge between microscale damage and macroscale failure. A 3D hydro-thermo-chemo-mechanical model based on a staggered method is developed at the mesoscale of concrete, which is able to reflect the deterioration at the microscale due to ASR. © 2013 Elsevier B.V. All rights reserved.en_US
dc.language.isoEnglishen_US
dc.source.titleComputational Materials Scienceen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.commatsci.2013.12.029en_US
dc.subjectAlkali-silica reactionen_US
dc.subjectCement pasteen_US
dc.subjectConcreteen_US
dc.subjectHomogenizationen_US
dc.subjectMultiscaleen_US
dc.titleMultiscale hydro-thermo-chemo-mechanical coupling: application to alkali-silica reactionen_US
dc.typeArticleen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.citation.spage381en_US
dc.citation.epage395en_US
dc.citation.volumeNumber84en_US
dc.identifier.doi10.1016/j.commatsci.2013.12.029en_US
dc.publisherElsevieren_US


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