Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions

The present study investigates the possibility of re-surfacing previously corroded reinforcements and the suitability of the two electrochemical techniques that are widely used to determine the state of corrosion of steel (the corrosion potential E<sub>corr</sub> and the corrosion rate i...

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Autores principales:	María de las Nieves González, María Isabel Prieto, Alfonso Cobo, Fernando Israel Olmedo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	repassivation corrosion reinforcement electrochemical techniques Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d50ad0f0f6594ef98550cd0c07fa6067
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spelling	oai:doaj.org-article:d50ad0f0f6594ef98550cd0c07fa60672021-11-25T18:14:28ZElectrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions10.3390/ma142268831996-1944https://doaj.org/article/d50ad0f0f6594ef98550cd0c07fa60672021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6883https://doaj.org/toc/1996-1944The present study investigates the possibility of re-surfacing previously corroded reinforcements and the suitability of the two electrochemical techniques that are widely used to determine the state of corrosion of steel (the corrosion potential E<sub>corr</sub> and the corrosion rate i<sub>corr</sub>). In order to test this, 32 pre-corroded B500SD reinforcing steel bars have been used for one year, where half of the bars have been cleaned to eliminate corrosion products. The other half have been maintained with the generated corrosion products. Subsequently, the bars have been embedded in cement mortar samples with variable amounts of chloride ion, and E<sub>corr</sub> and i<sub>corr</sub> have been measured for 250 days. The results showed that it is not possible to rework the reinforcement without removing corrosion products and that it is not possible to predict the passive or active state of steel by measuring E<sub>corr</sub> only.María de las Nieves GonzálezMaría Isabel PrietoAlfonso CoboFernando Israel OlmedoMDPI AGarticlerepassivationcorrosionreinforcementelectrochemical techniquesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6883, p 6883 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	repassivation corrosion reinforcement electrochemical techniques Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	repassivation corrosion reinforcement electrochemical techniques Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 María de las Nieves González María Isabel Prieto Alfonso Cobo Fernando Israel Olmedo Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
description	The present study investigates the possibility of re-surfacing previously corroded reinforcements and the suitability of the two electrochemical techniques that are widely used to determine the state of corrosion of steel (the corrosion potential E<sub>corr</sub> and the corrosion rate i<sub>corr</sub>). In order to test this, 32 pre-corroded B500SD reinforcing steel bars have been used for one year, where half of the bars have been cleaned to eliminate corrosion products. The other half have been maintained with the generated corrosion products. Subsequently, the bars have been embedded in cement mortar samples with variable amounts of chloride ion, and E<sub>corr</sub> and i<sub>corr</sub> have been measured for 250 days. The results showed that it is not possible to rework the reinforcement without removing corrosion products and that it is not possible to predict the passive or active state of steel by measuring E<sub>corr</sub> only.
format	article
author	María de las Nieves González María Isabel Prieto Alfonso Cobo Fernando Israel Olmedo
author_facet	María de las Nieves González María Isabel Prieto Alfonso Cobo Fernando Israel Olmedo
author_sort	María de las Nieves González
title	Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
title_short	Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
title_full	Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
title_fullStr	Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
title_full_unstemmed	Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions
title_sort	electrochemical study of clean and pre-corroded reinforcements embedded in mortar samples with variable amounts of chloride ions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d50ad0f0f6594ef98550cd0c07fa6067
work_keys_str_mv	AT mariadelasnievesgonzalez electrochemicalstudyofcleanandprecorrodedreinforcementsembeddedinmortarsampleswithvariableamountsofchlorideions AT mariaisabelprieto electrochemicalstudyofcleanandprecorrodedreinforcementsembeddedinmortarsampleswithvariableamountsofchlorideions AT alfonsocobo electrochemicalstudyofcleanandprecorrodedreinforcementsembeddedinmortarsampleswithvariableamountsofchlorideions AT fernandoisraelolmedo electrochemicalstudyofcleanandprecorrodedreinforcementsembeddedinmortarsampleswithvariableamountsofchlorideions
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Electrochemical Study of Clean and Pre-Corroded Reinforcements Embedded in Mortar Samples with Variable Amounts of Chloride Ions

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