Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel

Abstract Increasing the lifespan of structures is of great importance for civil construction, either because of economic aspects or security to the users. Corrosion of reinforcement is one of the most recurring problems, especially in environments with high chloride content. One of the most effectiv...

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Autores principales:	Ortolan,Vinícius de Kayser, Hilgert,Thayse, Howland,Juan José, Silva,Luis, Tutikian,Bernardo Fonseca
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2017
Materias:	Reinforcement corrosion hot-dip galvanizing adhesion bending test
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000200238
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spelling	oai:scielo:S0718-915X20170002002382017-10-23Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steelOrtolan,Vinícius de KayserHilgert,ThayseHowland,Juan JoséSilva,LuisTutikian,Bernardo Fonseca Reinforcement corrosion hot-dip galvanizing adhesion bending test Abstract Increasing the lifespan of structures is of great importance for civil construction, either because of economic aspects or security to the users. Corrosion of reinforcement is one of the most recurring problems, especially in environments with high chloride content. One of the most effective alternatives to protect reinforcement against corrosion is the hot-dip galvanizing of steel bars, with the addition of a zinc coating that is consumed before steel entering in reaction. In this paper, it was investigated the comparison between unprotected steel bars and hot-dip galvanized ones, immersed in four types of concrete with different water/cement ratio, and subjected to accelerated corrosion test executed by the CAIM procedure. It was observed corrosion decreased for all types of concrete, reaching 70.5% of reduction for the richest mixture, showing that the hot-dip galvanizing may be an important alternative to the wired concrete structures, particularly when used in combination with mixtures of greater durability.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.16 n.2 20172017-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000200238en10.7764/rdlc.16.2.238
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Reinforcement corrosion hot-dip galvanizing adhesion bending test
spellingShingle	Reinforcement corrosion hot-dip galvanizing adhesion bending test Ortolan,Vinícius de Kayser Hilgert,Thayse Howland,Juan José Silva,Luis Tutikian,Bernardo Fonseca Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
description	Abstract Increasing the lifespan of structures is of great importance for civil construction, either because of economic aspects or security to the users. Corrosion of reinforcement is one of the most recurring problems, especially in environments with high chloride content. One of the most effective alternatives to protect reinforcement against corrosion is the hot-dip galvanizing of steel bars, with the addition of a zinc coating that is consumed before steel entering in reaction. In this paper, it was investigated the comparison between unprotected steel bars and hot-dip galvanized ones, immersed in four types of concrete with different water/cement ratio, and subjected to accelerated corrosion test executed by the CAIM procedure. It was observed corrosion decreased for all types of concrete, reaching 70.5% of reduction for the richest mixture, showing that the hot-dip galvanizing may be an important alternative to the wired concrete structures, particularly when used in combination with mixtures of greater durability.
author	Ortolan,Vinícius de Kayser Hilgert,Thayse Howland,Juan José Silva,Luis Tutikian,Bernardo Fonseca
author_facet	Ortolan,Vinícius de Kayser Hilgert,Thayse Howland,Juan José Silva,Luis Tutikian,Bernardo Fonseca
author_sort	Ortolan,Vinícius de Kayser
title	Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
title_short	Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
title_full	Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
title_fullStr	Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
title_full_unstemmed	Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
title_sort	comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000200238
work_keys_str_mv	AT ortolanviniciusdekayser comparativeassessmentofcorrosionofconcretereinforcedwithunprotectedsteelandhotdipgalvanizedsteel AT hilgertthayse comparativeassessmentofcorrosionofconcretereinforcedwithunprotectedsteelandhotdipgalvanizedsteel AT howlandjuanjose comparativeassessmentofcorrosionofconcretereinforcedwithunprotectedsteelandhotdipgalvanizedsteel AT silvaluis comparativeassessmentofcorrosionofconcretereinforcedwithunprotectedsteelandhotdipgalvanizedsteel AT tutikianbernardofonseca comparativeassessmentofcorrosionofconcretereinforcedwithunprotectedsteelandhotdipgalvanizedsteel
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Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel

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