Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings

Most regulations on the manufacturing of concrete for reinforced concrete structures rest on durability models that consider the corrosion of reinforcements. Those models are based on factors such as humidity, frost, presence of chlorides, and internal characteristics of the concrete itself, like re...

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Principais autores: Pascual Saura Gómez, Javier Sánchez Montero, Julio Emilio Torres Martín, Servando Chinchón-Payá, Nuria Rebolledo Ramos, Óscar Galao Malo
Formato: Artigo
Idioma:English
Publicado em: MDPI AG 2023-06-01
coleção:Corrosion and Materials Degradation
Assuntos:
Acesso em linha:https://www.mdpi.com/2624-5558/4/3/18
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author Pascual Saura Gómez
Javier Sánchez Montero
Julio Emilio Torres Martín
Servando Chinchón-Payá
Nuria Rebolledo Ramos
Óscar Galao Malo
author_facet Pascual Saura Gómez
Javier Sánchez Montero
Julio Emilio Torres Martín
Servando Chinchón-Payá
Nuria Rebolledo Ramos
Óscar Galao Malo
author_sort Pascual Saura Gómez
collection DOAJ
description Most regulations on the manufacturing of concrete for reinforced concrete structures rest on durability models that consider the corrosion of reinforcements. Those models are based on factors such as humidity, frost, presence of chlorides, and internal characteristics of the concrete itself, like resistance, porosity, type of cement, water/cement ratio, etc. No regulations, however, adopt a purely constructive perspective when evaluating the risk of corrosion, i.e., the relative position of the reinforced concrete in buildings. The present work focuses on the relationship between the position of the damaged element and the building envelope. A total of 84 elements (columns and reinforced concrete beams) across twenty buildings were analysed in the provinces of Alicante and Murcia (Spain). The reinforcement concrete of these elements underwent carbonation-induced corrosion according to their positions in the buildings: (A) façade columns in contact with the ground; (B) interior columns in contact with the ground; (C) columns of walls in contact with the ground; (D) columns and external beams protected from rain; (E) columns and external beams exposed to rain; (F) columns and beams in air chambers under sanitary slabs; and (G), columns and interior beams. Of all types, elements (E) and (F) suffered carbonation-induced corrosion faster than the models used in the regulations, and type (G) underwent slower carbonation.
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spelling doaj.art-8f1da651dc4c41cab031b71eeb91cb4b2023-11-19T10:06:15ZengMDPI AGCorrosion and Materials Degradation2624-55582023-06-014334536310.3390/cmd4030018Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the BuildingsPascual Saura Gómez0Javier Sánchez Montero1Julio Emilio Torres Martín2Servando Chinchón-Payá3Nuria Rebolledo Ramos4Óscar Galao Malo5Department of Architectural Constructions, University of Alicante, 03690 Alicante, SpainInstituto Eduardo Torroja de Ciencias de la Construcción (IETcc-CSIC), Calle de Serrano Galvache, 4, 28033 Madrid, SpainInstituto Eduardo Torroja de Ciencias de la Construcción (IETcc-CSIC), Calle de Serrano Galvache, 4, 28033 Madrid, SpainInstituto Eduardo Torroja de Ciencias de la Construcción (IETcc-CSIC), Calle de Serrano Galvache, 4, 28033 Madrid, SpainInstituto Eduardo Torroja de Ciencias de la Construcción (IETcc-CSIC), Calle de Serrano Galvache, 4, 28033 Madrid, SpainDepartment of Civil Engineering, University of Alicante, 03690 Alicante, SpainMost regulations on the manufacturing of concrete for reinforced concrete structures rest on durability models that consider the corrosion of reinforcements. Those models are based on factors such as humidity, frost, presence of chlorides, and internal characteristics of the concrete itself, like resistance, porosity, type of cement, water/cement ratio, etc. No regulations, however, adopt a purely constructive perspective when evaluating the risk of corrosion, i.e., the relative position of the reinforced concrete in buildings. The present work focuses on the relationship between the position of the damaged element and the building envelope. A total of 84 elements (columns and reinforced concrete beams) across twenty buildings were analysed in the provinces of Alicante and Murcia (Spain). The reinforcement concrete of these elements underwent carbonation-induced corrosion according to their positions in the buildings: (A) façade columns in contact with the ground; (B) interior columns in contact with the ground; (C) columns of walls in contact with the ground; (D) columns and external beams protected from rain; (E) columns and external beams exposed to rain; (F) columns and beams in air chambers under sanitary slabs; and (G), columns and interior beams. Of all types, elements (E) and (F) suffered carbonation-induced corrosion faster than the models used in the regulations, and type (G) underwent slower carbonation.https://www.mdpi.com/2624-5558/4/3/18corrosioncarbonationposition of reinforced concrete
spellingShingle Pascual Saura Gómez
Javier Sánchez Montero
Julio Emilio Torres Martín
Servando Chinchón-Payá
Nuria Rebolledo Ramos
Óscar Galao Malo
Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
Corrosion and Materials Degradation
corrosion
carbonation
position of reinforced concrete
title Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
title_full Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
title_fullStr Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
title_full_unstemmed Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
title_short Carbonation-Induced Corrosion of Reinforced Concrete Elements according to Their Positions in the Buildings
title_sort carbonation induced corrosion of reinforced concrete elements according to their positions in the buildings
topic corrosion
carbonation
position of reinforced concrete
url https://www.mdpi.com/2624-5558/4/3/18
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