Shape Effect of Electrochemical Chloride Extraction in Structural Reinforced Concrete Elements Using a New Cement-Based Anodic System

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Título: Shape Effect of Electrochemical Chloride Extraction in Structural Reinforced Concrete Elements Using a New Cement-Based Anodic System
Autor/es: Carmona Calero, Jesús | Climent, Miguel-Ángel | Antón Gil, Carlos | Vera Almenar, Guillem de | Garcés, Pedro
Grupo/s de investigación o GITE: Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ingeniería Civil
Palabras clave: Electrochemical chloride extraction | Cement-based anodic system | Shape effect
Área/s de conocimiento: Ingeniería de la Construcción
Fecha de publicación: 26-may-2015
Editor: MDPI
Cita bibliográfica: Materials. 2015, 8(6): 2901-2917. doi:10.3390/ma8062901
Resumen: This article shows the research carried out by the authors focused on how the shape of structural reinforced concrete elements treated with electrochemical chloride extraction can affect the efficiency of this process. Assuming the current use of different anode systems, the present study considers the comparison of results between conventional anodes based on Ti-RuO2 wire mesh and a cement-based anodic system such as a paste of graphite-cement. Reinforced concrete elements of a meter length were molded to serve as laboratory specimens, to closely represent authentic structural supports, with circular and rectangular sections. Results confirm almost equal performances for both types of anode systems when electrochemical chloride extraction is applied to isotropic structural elements. In the case of anisotropic ones, such as rectangular sections with no uniformly distributed rebar, differences in electrical flow density were detected during the treatment. Those differences were more extreme for Ti-RuO2 mesh anode system. This particular shape effect is evidenced by obtaining the efficiencies of electrochemical chloride extraction in different points of specimens.
Patrocinador/es: This research was funded by the Spanish Ministerio de Economía y Competitividad (and formerly by the Spanish Ministerio de Ciencia e Innovación) and ERDF (European Regional Development Fund) through projects BIA2010-20548 and MAT2009-10866, and also through the project PROMETEO/2013/035 of Generalitat Valenciana (Spain).
URI: http://hdl.handle.net/10045/47166
ISSN: 1996-1944
DOI: 10.3390/ma8062901
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2015 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 license (http://creativecommons.org/licenses/by/4.0/).
Revisión científica: si
Versión del editor: http://dx.doi.org/10.3390/ma8062901
Aparece en las colecciones:INV - DMCIA - Artículos de Revistas

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