Monitoring of corrosion processes in chloride contaminated mortar by X-ray tomography

Authors

  • Mathias Beck, Ph. D. Federal Institute for Materials Research and Testing
  • Juergen Goebbels, Ph. D. Federal Institute for Materials Research and Testing
  • Andreas Burkert, Ph. D. Federal Institute for Materials Research and Testing

Abstract

La corrosión  del  acero  reforzado en  concreto expuesto  a
ambientes que contienen cloruro es un serio problema en la
práctica de la  ingeniería civil. Los métodos electroquímicos,
vale decir, el mapeo potencial, suministra  información acerca
de  si  el  refuerzo  todavía  es  pasivo  o  se  ha  iniciado  la
despasivización. La aplicación de  tales  técnicas no suministra información sobre el tipo de corrosión, ni sobre la extensión y distribución del producto de  la corrosión. Hasta hoy es imposible  recopilar  tal  información  sin  destruir  los
especímenes,  luego de que  la prueba electroquímica se    lleva a cabo. Para superar este problema  se  trató de estudiar  la superficie del acero dentro del mortero de los especímenes,mediante  las tomografías con Rayos X  (CT). En el marco de estas investigaciones se pudo mostrar, por primera vez, que la tomografía de rayos X es apropiada para hacer visible la corrosión de  las barras de  refuerzo empotradas en el mortero,con un  recubrimiento de unos 20 milímetros. Posteriormente,secciones de  las varillas empotradas  formadas por las medidas del CT, fueron exitosamente comparadas con las secciones metalográficas.

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Published

2011-05-05
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How to Cite

Beck, M, Goebbels, J, & Burkert, A. (2011). Monitoring of corrosion processes in chloride contaminated mortar by X-ray tomography. Revista Facultad de Ingeniería, 18(27). Retrieved from https://revistas.uptc.edu.co/index.php/ingenieria/article/view/1389

Issue

Vol. 18 No. 27 (2009)

Section

Papers

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