A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200018 |
Resumo: | Several electrochemical techniques can be used to monitor corrosion, among them are open circuit potential (OCP) and eletrochemical impedance spectroscopy (EIS). Monitoring OCP is the most typical procedure for routine inspection of reinforced concrete structures and can be easily carried out, however it only gives an approximate idea of the corrosion process. EIS is a more complete technique, which supplies information regarding the mechanism and kinetics of reaction electrochemistries, but only used in the laboratory. Based on these two techniques, this study is related to the steel corrosion in high-performance concrete with silica fume and silica from rice husk. The acceleration of the corrosion was carried out using immersion cycles in a 3.5% NaCl solution. As well as high compressive strength values, the addition of silica fume presented low corrosion risks and high impedance module values and significant increases of the concrete resistivity after 22 months of alternate immersion/drying cycles were obtained. |
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Materials research (São Carlos. Online) |
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A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopyhigh-performance concretesilica fumecorrosioneletrochemical techniquesSeveral electrochemical techniques can be used to monitor corrosion, among them are open circuit potential (OCP) and eletrochemical impedance spectroscopy (EIS). Monitoring OCP is the most typical procedure for routine inspection of reinforced concrete structures and can be easily carried out, however it only gives an approximate idea of the corrosion process. EIS is a more complete technique, which supplies information regarding the mechanism and kinetics of reaction electrochemistries, but only used in the laboratory. Based on these two techniques, this study is related to the steel corrosion in high-performance concrete with silica fume and silica from rice husk. The acceleration of the corrosion was carried out using immersion cycles in a 3.5% NaCl solution. As well as high compressive strength values, the addition of silica fume presented low corrosion risks and high impedance module values and significant increases of the concrete resistivity after 22 months of alternate immersion/drying cycles were obtained.ABM, ABC, ABPol2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200018Materials Research v.9 n.2 2006reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392006000200018info:eu-repo/semantics/openAccessSilva,Fernanda Giannotti daLiborio,Jefferson Benedicto Libardieng2006-06-06T00:00:00Zoai:scielo:S1516-14392006000200018Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2006-06-06T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
title |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
spellingShingle |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy Silva,Fernanda Giannotti da high-performance concrete silica fume corrosion eletrochemical techniques |
title_short |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
title_full |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
title_fullStr |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
title_full_unstemmed |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
title_sort |
A study of steel bar reinforcement corrosion in concretes with SF and SRH using electrochemical impedance spectroscopy |
author |
Silva,Fernanda Giannotti da |
author_facet |
Silva,Fernanda Giannotti da Liborio,Jefferson Benedicto Libardi |
author_role |
author |
author2 |
Liborio,Jefferson Benedicto Libardi |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva,Fernanda Giannotti da Liborio,Jefferson Benedicto Libardi |
dc.subject.por.fl_str_mv |
high-performance concrete silica fume corrosion eletrochemical techniques |
topic |
high-performance concrete silica fume corrosion eletrochemical techniques |
description |
Several electrochemical techniques can be used to monitor corrosion, among them are open circuit potential (OCP) and eletrochemical impedance spectroscopy (EIS). Monitoring OCP is the most typical procedure for routine inspection of reinforced concrete structures and can be easily carried out, however it only gives an approximate idea of the corrosion process. EIS is a more complete technique, which supplies information regarding the mechanism and kinetics of reaction electrochemistries, but only used in the laboratory. Based on these two techniques, this study is related to the steel corrosion in high-performance concrete with silica fume and silica from rice husk. The acceleration of the corrosion was carried out using immersion cycles in a 3.5% NaCl solution. As well as high compressive strength values, the addition of silica fume presented low corrosion risks and high impedance module values and significant increases of the concrete resistivity after 22 months of alternate immersion/drying cycles were obtained. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392006000200018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.9 n.2 2006 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212658447384576 |