Non-Destructive Evaluation of Reinforcing Rebar Radius by Digital Image GPR Technique

Abstract:

Ground Penetrating Radar (GPR) is a high efficiency technology to detect the cylindrical medium in the concretes material. The electromagnetic wave is incidental to double-rebar, and measures the reflection signal behaviors from energy zone. The results from the reflection signal of electromagnetic wave of the reinforcement concretes allow evaluating the radius of double-bar (1.6cm, 1cm). A physical model can effectively measure the radius of double-bar by the result of electromagnetic wave reflex behavior analysis. The results indicate that, this techology is capable of estimating the reinforcing double-bar radius to within 6%.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 847-851
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.847
• Online since: January 2014
• Authors: Che Way Chang*, Chen Hua Lin, Shyi Lin Lee, Ping Huang Chen, Ching Cheng Jen, Huei Lin Chen
• Keywords: Double-Rebar, Ground Penetrating Radar (GPR), Power Reflection Coefficient

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