Non contacting corrosion method applied to the steel corrosion rate determination in different solutions and reinforced concrete specimens.

Andrade Perdrix, Maria del Carmen y Martinez Sierra, Isabel (2010). Non contacting corrosion method applied to the steel corrosion rate determination in different solutions and reinforced concrete specimens.. En: "NACE 2010", 01/03/2010 - 01/03/2010, San Antonio, Texas, EEUU. pp. 1-2.

Descripción

Título: Non contacting corrosion method applied to the steel corrosion rate determination in different solutions and reinforced concrete specimens.
Autor/es:
  • Andrade Perdrix, Maria del Carmen
  • Martinez Sierra, Isabel
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: NACE 2010
Fechas del Evento: 01/03/2010 - 01/03/2010
Lugar del Evento: San Antonio, Texas, EEUU
Título del Libro: Proceedings of NACE 2010
Fecha: 2010
Materias:
Palabras Clave Informales: corrosion, rate measurement, non-metallic contact.
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ciencia de los Materiales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

All the current techniques used to measure the metallic corrosion require contact with the metal. Particularly, in the case of reinforcement corrosion, this signifies the need to reach the bar that is embedded in the concrete, which may consequently result in the disruption of the integrity of the real structures. This paper explores the feasibility of using a new method for polarizing the reinforcement or any metal in an electrolyte, without the need of direct contact with it. The polarization is obtained through the induction of current from an external electrical field. The current runs through the electrolyte and the metal in parallel, depending on the electrode arrangement. The resulting Polarization Resistance calculated is termed as Inductive, Rp = Rpi . The Inductive is calculated by the model of resistances in parallel, which requires a separate measurement of the electrolyte ohmic resistance. In this study, solutions with several resistivities and concrete specimens with and without chlorides have been used. The results indicate that electrolytes of low resistivity mask the measurement, and consequently, Rpi could not be calculated. In electrolytes with high resistivity, such as concrete, the feasibility is found to depend on the relative values of Re and Rpi

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ID de Registro: 9303
Identificador DC: http://oa.upm.es/9303/
Identificador OAI: oai:oa.upm.es:9303
Depositado por: Memoria Investigacion
Depositado el: 27 Oct 2011 09:49
Ultima Modificación: 20 Abr 2016 17:46
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