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Proceedings Paper

Wireless low-cost corrosion sensors for reinforced concrete structures
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Paper Abstract

The prototype sensors provide a low-cost method to detect the onset of corrosion in concrete structures using a noninvasive approach. The embedded sensors are wirelessly powered by inductive coupling and do not require batteries. Unlike traditional techniques for detecting corrosion which require an electrical connection to the embedded reinforcement, the sensors are self-contained and provide information about the environmental conditions within the concrete in the vicinity of the sensor. The sensors were originally envisioned to provide binary information about the onset of corrosion based on the characteristic frequency of the impedance response. However, more complicated signal processing is required to determine the state of the sensor. The viability of the corrosion sensors is being evaluated through a comprehensive series of laboratory tests using small-scale concrete prisms and large-scale reinforced concrete members.

Paper Details

Date Published: 17 May 2005
PDF: 11 pages
Proc. SPIE 5765, Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, (17 May 2005); doi: 10.1117/12.600011
Show Author Affiliations
Nathan P. Dickerson, Univ. of Texas/Austin (United States)
Jarkko T. Simonen, Structural Repair Group, LLC (United States)
Matthew M. Ardringa, Univ. of Texas/Austin (United States)
Sharon L. Wood, Univ. of Texas/Austin (United States)
Dean P. Neikirk, Univ. of Texas/Austin (United States)


Published in SPIE Proceedings Vol. 5765:
Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
Masayoshi Tomizuka, Editor(s)

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