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Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution

The use of supplementary cementitious materials such as fly ash, slag, and silica fume improve reinforced concrete corrosion performance, while decreasing cost and reducing environmental impact compared to ordinary Portland cement. In this study, the corrosion behavior of AISI 1018 carbon steel (CS)...

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Autores principales: Baltazar-Zamora, Miguel Angel, M. Bastidas, David, Santiago-Hurtado, Griselda, Mendoza-Rangel, José Manuel, Gaona-Tiburcio, Citlalli, Bastidas, José M., Almeraya-Calderón, Facundo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926658/
https://www.ncbi.nlm.nih.gov/pubmed/31816822
http://dx.doi.org/10.3390/ma12234007
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author Baltazar-Zamora, Miguel Angel
M. Bastidas, David
Santiago-Hurtado, Griselda
Mendoza-Rangel, José Manuel
Gaona-Tiburcio, Citlalli
Bastidas, José M.
Almeraya-Calderón, Facundo
author_facet Baltazar-Zamora, Miguel Angel
M. Bastidas, David
Santiago-Hurtado, Griselda
Mendoza-Rangel, José Manuel
Gaona-Tiburcio, Citlalli
Bastidas, José M.
Almeraya-Calderón, Facundo
author_sort Baltazar-Zamora, Miguel Angel
collection PubMed
description The use of supplementary cementitious materials such as fly ash, slag, and silica fume improve reinforced concrete corrosion performance, while decreasing cost and reducing environmental impact compared to ordinary Portland cement. In this study, the corrosion behavior of AISI 1018 carbon steel (CS) and AISI 304 stainless steel (SS) reinforcements was studied for 365 days. Three different concrete mixtures were tested: 100% CPC (composite Portland cement), 80% CPC and 20% silica fume (SF), and 80% CPC and 20% fly ash (FA). The concrete mixtures were designed according to the ACI 211.1 standard. The reinforced concrete specimens were immersed in a 3.5 wt.% NaCl test solution to simulate a marine environment. Corrosion monitoring was evaluated using the corrosion potential (E(corr)) according to ASTM C876 and the linear polarization resistance (LPR) according to ASTM G59. The results show that AISI 304 SS reinforcements yielded the best corrosion behavior, with E(corr) values mainly pertaining to the region of 10% probability of corrosion, and corrosion current density (i(corr)) values indicating passivity after 105 days of experimentation and low probability of corrosion for the remainder of the test period.
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spelling pubmed-69266582019-12-24 Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution Baltazar-Zamora, Miguel Angel M. Bastidas, David Santiago-Hurtado, Griselda Mendoza-Rangel, José Manuel Gaona-Tiburcio, Citlalli Bastidas, José M. Almeraya-Calderón, Facundo Materials (Basel) Article The use of supplementary cementitious materials such as fly ash, slag, and silica fume improve reinforced concrete corrosion performance, while decreasing cost and reducing environmental impact compared to ordinary Portland cement. In this study, the corrosion behavior of AISI 1018 carbon steel (CS) and AISI 304 stainless steel (SS) reinforcements was studied for 365 days. Three different concrete mixtures were tested: 100% CPC (composite Portland cement), 80% CPC and 20% silica fume (SF), and 80% CPC and 20% fly ash (FA). The concrete mixtures were designed according to the ACI 211.1 standard. The reinforced concrete specimens were immersed in a 3.5 wt.% NaCl test solution to simulate a marine environment. Corrosion monitoring was evaluated using the corrosion potential (E(corr)) according to ASTM C876 and the linear polarization resistance (LPR) according to ASTM G59. The results show that AISI 304 SS reinforcements yielded the best corrosion behavior, with E(corr) values mainly pertaining to the region of 10% probability of corrosion, and corrosion current density (i(corr)) values indicating passivity after 105 days of experimentation and low probability of corrosion for the remainder of the test period. MDPI 2019-12-03 /pmc/articles/PMC6926658/ /pubmed/31816822 http://dx.doi.org/10.3390/ma12234007 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Baltazar-Zamora, Miguel Angel
M. Bastidas, David
Santiago-Hurtado, Griselda
Mendoza-Rangel, José Manuel
Gaona-Tiburcio, Citlalli
Bastidas, José M.
Almeraya-Calderón, Facundo
Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title_full Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title_fullStr Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title_full_unstemmed Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title_short Effect of Silica Fume and Fly Ash Admixtures on the Corrosion Behavior of AISI 304 Embedded in Concrete Exposed in 3.5% NaCl Solution
title_sort effect of silica fume and fly ash admixtures on the corrosion behavior of aisi 304 embedded in concrete exposed in 3.5% nacl solution
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926658/
https://www.ncbi.nlm.nih.gov/pubmed/31816822
http://dx.doi.org/10.3390/ma12234007
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