Imaging water ingress into concrete using electrical resistance tomography

Benny Suryanto, Danah Saraireh, Jaehwan Kim, William John McCarter, Gerard Starrs, HussamEldin Mohamed Taha

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Abstract

This paper investigates the feasibility of imaging the movement of water into partially saturated concrete using electrical resistance tomography (ERT). With this technique, the spatial distribution of electrical resistance within the concrete sample was acquired from 4-point electrical measurements obtained on its surface. As the ingress of water influences the electrical properties of the concrete, it is shown that ERT can assist in monitoring and visualising water movement within concrete. To this end, the difference-imaging technique was used to obtain a qualitative representation of moisture distribution within concrete during the initial 20-hour absorption. It is shown that the technique also enables the influence of surface damage to be studied.
Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalInternational Journal of Advances in Engineering Sciences and Applied Mathematics
Early online date13 May 2017
DOIs
Publication statusE-pub ahead of print - 13 May 2017

Keywords

  • Electrical methods
  • tomography
  • imaging
  • water ingress

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