Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005 |
Resumo: | Conducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution. |
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7160 |
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Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigationscorrosioncarbonated concrete pore solutionrebarconducting polypyrroleConducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution.Sociedade Portuguesa de Electroquímica2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005Portugaliae Electrochimica Acta v.36 n.5 2018reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005Munot,H.Deshpande,P.Modhera,C.info:eu-repo/semantics/openAccess2024-02-06T17:07:27Zoai:scielo:S0872-19042018000500005Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:23.616552Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
title |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
spellingShingle |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations Munot,H. corrosion carbonated concrete pore solution rebar conducting polypyrrole |
title_short |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
title_full |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
title_fullStr |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
title_full_unstemmed |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
title_sort |
Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations |
author |
Munot,H. |
author_facet |
Munot,H. Deshpande,P. Modhera,C. |
author_role |
author |
author2 |
Deshpande,P. Modhera,C. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Munot,H. Deshpande,P. Modhera,C. |
dc.subject.por.fl_str_mv |
corrosion carbonated concrete pore solution rebar conducting polypyrrole |
topic |
corrosion carbonated concrete pore solution rebar conducting polypyrrole |
description |
Conducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-01 |
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005 |
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 |
Sociedade Portuguesa de Electroquímica |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
dc.source.none.fl_str_mv |
Portugaliae Electrochimica Acta v.36 n.5 2018 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1817550086874333184 |