Active Microwave Thermography: A Real-Time Monitoring Tool for CFRP-Concrete Bond Testing

Abstract

Nondestructive testing and evaluation (NDT&E) of materials and structures is important for many civil and infrastructure applications. To this end, this paper introduces active microwave thermography (AMT) as a real-time monitoring tool for detection of defect formation and propagation in composite-strengthened concrete structures. AMT is a thermographic NDTE technique which utilizes microwave radiation as a heat source. In this case, AMT is used to detect and evaluate debonding in a number of concrete specimens which have been strengthened with externally bonded carbon-fiber-reinforced polymer (CFRP) composite. As microwave radiation can be constantly and continuously applied over a long period of time, it can be effectively used as a source of thermal energy for long inspections. Several measurement results are presented in the paper that support AMT as a successful monitoring tool for the aforementioned application.

Meeting Name

2019 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2019 (2019: May 20-23, Auckland, New Zealand)

Department(s)

Electrical and Computer Engineering

Second Department

Civil, Architectural and Environmental Engineering

Comments

This work was partially supported by the National Science Foundation Division of Electrical, Communication, and Cyber Systems (ECCS) Award No. 1609470 “A Multi-Physics-Based Approach to Active Microwave Thermography.”

Keywords and Phrases

Active microwave thermography; CFRP; Debonding; Real-time monitoring; Strengthened concrete

International Standard Book Number (ISBN)

978-153863460-8

International Standard Serial Number (ISSN)

1091-5281

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 May 2019

Link to Full Text

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