Characterization of elastic and time-dependent deformations in normal strength and high performance concrete by image analysis

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dc.contributor.authorLopez, Maunicio
dc.contributor.authorKahn, Lawrence F.
dc.contributor.authorKurtis, Kimberly E.
dc.date.accessioned2024-01-10T12:37:57Z
dc.date.available2024-01-10T12:37:57Z
dc.date.issued2007
dc.description.abstractDeformations in normal strength concrete (NSC) and high performance concrete (HPC) were examined using image analysis to better understand the distribution of strain in these materials as related to their composition and microstructure. Elastic strain, creep and shrinkage were shown to occur non-uniformly throughout the NSC and HPC microstructure and creep and shrinkage strain both increased with time, as expected. The non-uniformity in the strain measurements also increased with time, as a consequence of dissimilarities in time-dependent behavior of the paste and the aggregate. However, compared with NSC, the time-dependent strains in the HPC were lower and showed less variation, suggesting a more uniform microstructure. In both NSC and HPC, high-strain sub-regions were evident in the vicinity of the interfacial transition zone (ITZ), likely as a consequence of the strain mismatch between aggregate and paste. The thickness of the high strain sub-regions along the ITZ in HPC were approximately one half of those in NSC. (c) 2007 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital21-03-2024
dc.format.extent13 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cemconres.2007.05.011
dc.identifier.issn0008-8846
dc.identifier.urihttps://doi.org/10.1016/j.cemconres.2007.05.011
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76957
dc.identifier.wosidWOS:000249229400015
dc.information.autorucIngeniería;López M;S/I;7202
dc.issue.numero8
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1277
dc.pagina.inicio1265
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaCEMENT AND CONCRETE RESEARCH
dc.rightsacceso restringido
dc.subjectaggregate
dc.subjectcement paste
dc.subjectcreep
dc.subjectinterfacial transition zone
dc.subjectshrinkage
dc.subjectLIGHTWEIGHT CONCRETE
dc.subjectDRYING SHRINKAGE
dc.subjectCEMENT PASTE
dc.subjectCREEP
dc.subjectCOMPRESSION
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleCharacterization of elastic and time-dependent deformations in normal strength and high performance concrete by image analysis
dc.typeartículo
dc.volumen37
sipa.codpersvinculados7202
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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