Journal Published Online: 09 September 2011
Volume 8, Issue 10

Application of Frequency Selective Circuits for Crack Detection in Concrete Elements

CODEN: JAIOAD

Abstract

Recent research has demonstrated that cracking can be monitored in concrete using conductive surface elements. One complication with using conductive surface elements is that each element requires a separate data acquisition channel. To overcome this hurdle, a frequency selective circuit (FSC) has been developed to rapidly and simultaneously interrogate the response of multiple conductive surface elements. The response of the FSC is analyzed using numerical methods and the use of the FSC is demonstrated using a pilot study in which conductive surface coatings were used to simultaneously monitor the time of cracking of multiple restrained concrete rings. Results indicate that the FSC can be used to monitor a large number of surface coating elements. This technology could be extended to other resistance based sensors. The FSC approach has the potential to be used for health monitoring of infrastructure elements where a large number of sensors are used.

Author Information

Pour-Ghaz, Mohammad
North Carolina State University
Weiss, Jason
Purdue Univ., School of Civil Engineering
Pages: 11
Price: $25.00
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Stock #: JAI103826
ISSN: 1546-962X
DOI: 10.1520/JAI103826