Type
ArticleKAUST Grant Number
KUS-I1-004021Date
2010-01Permanent link to this record
http://hdl.handle.net/10754/598128
Metadata
Show full item recordAbstract
We apply Electrical Resistance Tomography (ERT) for three dimensional imaging of concrete. In ERT, alternating currents are injected into the target using an array of electrodes attached to the target surface, and the resulting voltages are measured using the same electrodes. These boundary measurements are used for reconstructing the internal (3D) conductivity distribution of the target. In reinforced concrete, the metallic phases (reinforcing bars and fibers), cracks and air voids, moisture gradients, and the chloride distribution in the matrix carry contrast with respect to conductivity. While electrical measurements have been widely used to characterize the properties of concrete, only preliminary results of applying ERT to concrete imaging have been published so far. The aim of this paper is to carry out a feasibility evaluation with specifically cast samples. The results indicate that ERT may be a feasible modality for non-destructive evaluation of concrete. © 2009 Elsevier Ltd. All rights reserved.Citation
Karhunen K, Seppänen A, Lehikoinen A, Monteiro PJM, Kaipio JP (2010) Electrical Resistance Tomography imaging of concrete. Cement and Concrete Research 40: 137–145. Available: http://dx.doi.org/10.1016/j.cemconres.2009.08.023.Sponsors
Paulo Monteiro wishes to acknowledge the financial support given by Award No. KUS-I1-004021, made by King Abdullah University of Science and Technology (KAUST).Publisher
Elsevier BVJournal
Cement and Concrete Researchae974a485f413a2113503eed53cd6c53
10.1016/j.cemconres.2009.08.023