Imaging of Reinforced Concrete: State-of-the-Art Review
Publication: Journal of Infrastructure Systems
Volume 1, Issue 2
Abstract
Nondestructive evaluation plays an important role in the assessment of the nation's infrastructure. The evaluation methods for reinforced and prestressed concrete facilities can become more reliable if the methods incorporate imaging technology, which has been implemented widely in many fields. Radiography, ground penetrating radar (in B-scan mode) and infrared thermography have established themselves in civil engineering practice. They are used to nondestructively locate steel reinforcement and concrete flaws, such as delaminations, cracks and honeycombing. This paper discusses the principles of these established methods, as well as their advantages and disadvantages. Radioactive computed tomography, microwave holography, microwave tomography and acoustic tomography are in various stages of development. This paper summarizes the basis for each new method and the results of recent research. It also discusses the potential advantages of the new methods and the barriers to their implementation in civil engineering applications. Examples of images obtained with each technology are provided.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 1 • Issue 2 • June 1995
Pages: 134 - 141
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Jun 1, 1995
Published in print: Jun 1995
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