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Virtual Reality Presentation for Nondestructive Evaluation of Rebar Corrosion in Concrete based on Inverse BEM  

Kyung, Je-Woon (Research Institute of Technology, EJtech Co., Ltd.)
Yokota, Masaru (Department of Civil Engineering, Shikoku Research Institute Inc.)
Leelalerkiet, V. (Graduate School of Science and Technology, Kumamoto University)
Ohtsu, Masayasu (Graduate School of Science and Technology, Kumamoto University)
Publication Information
Abstract
In order to evaluate the corrosion of reinforcing steel-bars (rebar) in concrete, a nondestructive evaluation by the half-cell potential method is currently applied. In this study, potentials measured on a concrete surface are compensated into those on the concrete-rebar interface by the inverse boundary element method (IBEM). Because these potentials are obtained three-dimensionally (3-D), 3-D visualization is desirable. To this end, a visualization system has been developed by using VRML (Virtual Reality Modeling Language). As an application, results of a reinforced concrete (RC) slab with corroded rebars are visualized and discussed.
Keywords
half-cell potential; nondestructive testing; inverse boundary element method; virtual reality modeling language; polarization resistance;
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