L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar

Corrosion of reinforcement is a major problem regarding concrete durability. In new structures the corrosion onset can be delayed if additional protection methods are provided as is the case for the addition of corrosion inhibitors in the concrete mix. The main goal of this paper is the evaluation o...

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Autores: Argiz, Cristina, Arroyo, Celia, Bravo, Astrid, Moragues, Amparo, Andrade, Carmen, Bolzoni, Fabio
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/428878
Acceso en línea:https://hdl.handle.net/2117/428878
https://dx.doi.org/10.3390/ma15228005
Access Level:acceso abierto
Palabra clave:Green corrosion inhibitor
Ascorbic acid
Chloride-contaminated mortars
Linear polarization resistance
Electrochemical impedance spectroscopy
Differential thermal
Thermogravimetric analysis
Àrees temàtiques de la UPC::Enginyeria dels materials::Desgast de materials
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spelling L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortarArgiz, CristinaArroyo, CeliaBravo, AstridMoragues, AmparoAndrade, CarmenBolzoni, FabioGreen corrosion inhibitorAscorbic acidChloride-contaminated mortarsLinear polarization resistanceElectrochemical impedance spectroscopyDifferential thermalThermogravimetric analysisÀrees temàtiques de la UPC::Enginyeria dels materials::Desgast de materialsCorrosion of reinforcement is a major problem regarding concrete durability. In new structures the corrosion onset can be delayed if additional protection methods are provided as is the case for the addition of corrosion inhibitors in the concrete mix. The main goal of this paper is the evaluation of the effect of the ascorbic acid (AA) as a green steel corrosion inhibitor in cement mortars contaminated by chlorides. Concentration levels of ascorbic acid, ranging from 0.5 to 10−3 mol/L, were added to the mixing water. Electrochemical methods, including corrosion potential (Ecorr), linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS), were employed to assess the corrosion rate of the steel embedded in the mortars. The corrosion inhibiting performance of ascorbic acid was compared with that of sodium nitrite. The interaction of the ascorbic acid with the hydrated cement matrix was also evaluated with differential thermal and thermogravimetric analysis (DTA/TG) and pH measurements. The results indicated that, depending on the ascorbic acid concentration, it can be an activator of the corrosion process or an effective corrosion inhibitor in a similar manner to sodium nitrite. A corrosion rate decrease was achieved with concentrations below 10−2 mol/L and the optimum content was 10−3 mol/L. Within this concentration range, the AA does not modify the hydration performance of the cement matrix.This research was funded by the Ministry of Science and Innovation of Spain by means of the Research Fund Projects RTI2018-100962-B-100 and PID 2021-128616OB-100.Peer ReviewedMDPI20222022-11-1220252025-05-06journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/428878https://dx.doi.org/10.3390/ma15228005reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 RTI2018-100962-B-I00 ESTRATEGIA SOSTENIBLE DE ALTA DURABILIDAD EN HORMIGONES SOMETIDOS A AMBIENTES MARINOS A EDADES TEMPRANASAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-128616OB-I00 DISEÑO DE HORMIGONES NANOESTRUCTURADOS CON CONTENIDO REDUCIDO DE CLINKER PORTLAND Y ALTA DURABILIDAD DESDE EDADES TEMPRANAS COMO ESTRATEGIA EFICAZ HACIA LA SOSTENIBILIDADopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4288782026-05-27T15:37:01Z
dc.title.none.fl_str_mv L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
title L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
spellingShingle L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
Argiz, Cristina
Green corrosion inhibitor
Ascorbic acid
Chloride-contaminated mortars
Linear polarization resistance
Electrochemical impedance spectroscopy
Differential thermal
Thermogravimetric analysis
Àrees temàtiques de la UPC::Enginyeria dels materials::Desgast de materials
title_short L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
title_full L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
title_fullStr L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
title_full_unstemmed L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
title_sort L-ascorbic acid as an efficient green corrosion inhibitor of steel rebars in chloride contaminated cement mortar
dc.creator.none.fl_str_mv Argiz, Cristina
Arroyo, Celia
Bravo, Astrid
Moragues, Amparo
Andrade, Carmen
Bolzoni, Fabio
author Argiz, Cristina
author_facet Argiz, Cristina
Arroyo, Celia
Bravo, Astrid
Moragues, Amparo
Andrade, Carmen
Bolzoni, Fabio
author_role author
author2 Arroyo, Celia
Bravo, Astrid
Moragues, Amparo
Andrade, Carmen
Bolzoni, Fabio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Green corrosion inhibitor
Ascorbic acid
Chloride-contaminated mortars
Linear polarization resistance
Electrochemical impedance spectroscopy
Differential thermal
Thermogravimetric analysis
Àrees temàtiques de la UPC::Enginyeria dels materials::Desgast de materials
topic Green corrosion inhibitor
Ascorbic acid
Chloride-contaminated mortars
Linear polarization resistance
Electrochemical impedance spectroscopy
Differential thermal
Thermogravimetric analysis
Àrees temàtiques de la UPC::Enginyeria dels materials::Desgast de materials
description Corrosion of reinforcement is a major problem regarding concrete durability. In new structures the corrosion onset can be delayed if additional protection methods are provided as is the case for the addition of corrosion inhibitors in the concrete mix. The main goal of this paper is the evaluation of the effect of the ascorbic acid (AA) as a green steel corrosion inhibitor in cement mortars contaminated by chlorides. Concentration levels of ascorbic acid, ranging from 0.5 to 10−3 mol/L, were added to the mixing water. Electrochemical methods, including corrosion potential (Ecorr), linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS), were employed to assess the corrosion rate of the steel embedded in the mortars. The corrosion inhibiting performance of ascorbic acid was compared with that of sodium nitrite. The interaction of the ascorbic acid with the hydrated cement matrix was also evaluated with differential thermal and thermogravimetric analysis (DTA/TG) and pH measurements. The results indicated that, depending on the ascorbic acid concentration, it can be an activator of the corrosion process or an effective corrosion inhibitor in a similar manner to sodium nitrite. A corrosion rate decrease was achieved with concentrations below 10−2 mol/L and the optimum content was 10−3 mol/L. Within this concentration range, the AA does not modify the hydration performance of the cement matrix.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-11-12
2025
2025-05-06
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/428878
https://dx.doi.org/10.3390/ma15228005
url https://hdl.handle.net/2117/428878
https://dx.doi.org/10.3390/ma15228005
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 RTI2018-100962-B-I00 ESTRATEGIA SOSTENIBLE DE ALTA DURABILIDAD EN HORMIGONES SOMETIDOS A AMBIENTES MARINOS A EDADES TEMPRANAS
Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-128616OB-I00 DISEÑO DE HORMIGONES NANOESTRUCTURADOS CON CONTENIDO REDUCIDO DE CLINKER PORTLAND Y ALTA DURABILIDAD DESDE EDADES TEMPRANAS COMO ESTRATEGIA EFICAZ HACIA LA SOSTENIBILIDAD
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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