Surface and subsurface damage detection in cement-based materials using electrical resistance tomography

T. Ruan; A. Poursaee

doi:10.1117/12.2218958

20 April 2016 Surface and subsurface damage detection in cement-based materials using electrical resistance tomography

T. Ruan, A. Poursaee

Proceedings Volume 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016; 980318 (2016) https://doi.org/10.1117/12.2218958
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

Cement-based materials are widely used in infrastructure facilities. However, often the degradation of structures leads to the failures earlier than designed service life. Thus, non-destructive testing techniques are urgently needed to evaluate the health information of the structures. In this paper, the implementation of Electrical Resistance Tomography (ERT) was investigated. This low cost, radiation free and easy to perform modality is based on measuring the electrical properties of the material under test and using that to evaluate the existence of defects in that material. It uses a set of boundary potentials and injected current to reconstruct the conductivity distribution. An automatic measurement system was developed and surface damages as well as subsurface damages on mortar specimens were investigated. The reconstructed images were capable to show the presence and the location of the damages.

Conference Presentation

Citation Download Citation

T. Ruan and A. Poursaee "Surface and subsurface damage detection in cement-based materials using electrical resistance tomography", Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 980318 (20 April 2016); https://doi.org/10.1117/12.2218958

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