On the effectiveness of realkalisation as a rehabilitation method for corroded reinforced concrete structures
Metadatos
Mostrar el registro completo del ítemAutor
Fecha
2000Materia/s
Materia/s Unesco
3305 Tecnología de la Construcción
3305.05 Tecnología del Hormigón
5801 Teoría y Métodos Educativos
5802 Organización y Planificación de la Educación
2201.02 Acústica Arquitectónica
3303.07 Tecnología de la Corrosión
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3305.32 Ingeniería de Estructuras
Resumen
Escuela Universitaria de Arquitectura Técnica de Madrid, Av. Jüan de Herrera, 6, 28040-Madrid (Spain) Based on available experience with the use of electrochemical realkalisation (ERA), a fairly recent method for rehabilitating reinforced concrete structures (RCS), carbonated concrete can undoubtedly be realkalised. To the authors' minds, however, the following questions remain unanswered: (a) does ERA always effectively repassivates reinforcements?; (b) can ERA be considered an end or just a means to ensuring RCS durability?; and (c) what is the use of ERA if it cannot stop corrosion? This work was aimed at answering the previous, controversial questions. To this aim, the behaviour in a Ca(OH)2 saturated solution, and in a sound uncarbonated mortar consisting of 1:3:0.5 cement, sand and water, of reinforcing bars from an RCS that failed through carbonation after 29 years of service life was examined. © WILEY-VCH Verlag GmbH.
Escuela Universitaria de Arquitectura Técnica de Madrid, Av. Jüan de Herrera, 6, 28040-Madrid (Spain) Based on available experience with the use of electrochemical realkalisation (ERA), a fairly recent method for rehabilitating reinforced concrete structures (RCS), carbonated concrete can undoubtedly be realkalised. To the authors' minds, however, the following questions remain unanswered: (a) does ERA always effectively repassivates reinforcements?; (b) can ERA be considered an end or just a means to ensuring RCS durability?; and (c) what is the use of ERA if it cannot stop corrosion? This work was aimed at answering the previous, controversial questions. To this aim, the behaviour in a Ca(OH)2 saturated solution, and in a sound uncarbonated mortar consisting of 1:3:0.5 cement, sand and water, of reinforcing bars from an RCS that failed through carbonation after 29 years of service life was examined. © WILEY-VCH Verlag GmbH.
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