Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences

Detalhes bibliográficos
Autor(a) principal: Zacchei, Enrico
Data de Publicação: 2019
Outros Autores: Nogueira, Caio Gorla [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.conbuildmat.2018.12.166
http://hdl.handle.net/11449/188560
Resumo: The aim of this study is to investigate the chloride ions diffusion in sound and cracked concrete under compressive loads. The model includes the analytical setup and data analyses. The governing equations are modified to account for the no-constant chloride diffusion coefficient. With this condition it is possible to define several terms in the time domain to predict the service life of structures. The material is a saturated and hardened cement paste under non-steady-state conditions. Loads are studied for linear and non-linear material states. The predicted values at the depth of steel reinforcement ranges from 0.1 to 0.3% in 7–20 years. The ratio of the chloride diffusion coefficient under loading and no-loading is 9, whereas the chloride diffusivity coefficient in cracks is 0.9–1.3 times the chloride diffusion coefficient under loading.
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spelling Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influencesChloride diffusionCracked concrete diffusivityNo-constant chloride coefficientStress-strain effectsThe aim of this study is to investigate the chloride ions diffusion in sound and cracked concrete under compressive loads. The model includes the analytical setup and data analyses. The governing equations are modified to account for the no-constant chloride diffusion coefficient. With this condition it is possible to define several terms in the time domain to predict the service life of structures. The material is a saturated and hardened cement paste under non-steady-state conditions. Loads are studied for linear and non-linear material states. The predicted values at the depth of steel reinforcement ranges from 0.1 to 0.3% in 7–20 years. The ratio of the chloride diffusion coefficient under loading and no-loading is 9, whereas the chloride diffusivity coefficient in cracks is 0.9–1.3 times the chloride diffusion coefficient under loading.Higher Polytechnic School of Ávila University of Salamanca (USAL), 50 Hornos Caleros AvenueSchool of Civil Engineering of Bauru São Paulo State University (UNESP), 14-01 Eng. Luís Edmundo Carrijo Coube AvenueSchool of Civil Engineering of Bauru São Paulo State University (UNESP), 14-01 Eng. Luís Edmundo Carrijo Coube AvenueUniversity of Salamanca (USAL)Universidade Estadual Paulista (Unesp)Zacchei, EnricoNogueira, Caio Gorla [UNESP]2019-10-06T16:12:04Z2019-10-06T16:12:04Z2019-03-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article100-109http://dx.doi.org/10.1016/j.conbuildmat.2018.12.166Construction and Building Materials, v. 201, p. 100-109.0950-0618http://hdl.handle.net/11449/18856010.1016/j.conbuildmat.2018.12.1662-s2.0-85059327105Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengConstruction and Building Materialsinfo:eu-repo/semantics/openAccess2024-06-28T12:56:51Zoai:repositorio.unesp.br:11449/188560Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-28T12:56:51Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
title Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
spellingShingle Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
Zacchei, Enrico
Chloride diffusion
Cracked concrete diffusivity
No-constant chloride coefficient
Stress-strain effects
title_short Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
title_full Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
title_fullStr Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
title_full_unstemmed Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
title_sort Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences
author Zacchei, Enrico
author_facet Zacchei, Enrico
Nogueira, Caio Gorla [UNESP]
author_role author
author2 Nogueira, Caio Gorla [UNESP]
author2_role author
dc.contributor.none.fl_str_mv University of Salamanca (USAL)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Zacchei, Enrico
Nogueira, Caio Gorla [UNESP]
dc.subject.por.fl_str_mv Chloride diffusion
Cracked concrete diffusivity
No-constant chloride coefficient
Stress-strain effects
topic Chloride diffusion
Cracked concrete diffusivity
No-constant chloride coefficient
Stress-strain effects
description The aim of this study is to investigate the chloride ions diffusion in sound and cracked concrete under compressive loads. The model includes the analytical setup and data analyses. The governing equations are modified to account for the no-constant chloride diffusion coefficient. With this condition it is possible to define several terms in the time domain to predict the service life of structures. The material is a saturated and hardened cement paste under non-steady-state conditions. Loads are studied for linear and non-linear material states. The predicted values at the depth of steel reinforcement ranges from 0.1 to 0.3% in 7–20 years. The ratio of the chloride diffusion coefficient under loading and no-loading is 9, whereas the chloride diffusivity coefficient in cracks is 0.9–1.3 times the chloride diffusion coefficient under loading.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T16:12:04Z
2019-10-06T16:12:04Z
2019-03-20
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.conbuildmat.2018.12.166
Construction and Building Materials, v. 201, p. 100-109.
0950-0618
http://hdl.handle.net/11449/188560
10.1016/j.conbuildmat.2018.12.166
2-s2.0-85059327105
url http://dx.doi.org/10.1016/j.conbuildmat.2018.12.166
http://hdl.handle.net/11449/188560
identifier_str_mv Construction and Building Materials, v. 201, p. 100-109.
0950-0618
10.1016/j.conbuildmat.2018.12.166
2-s2.0-85059327105
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Construction and Building Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 100-109
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1803650373612732416

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