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Proceedings Paper

Health monitoring of concrete structures subjected to environmental attacks
Author(s): Kevin K. Tseng
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Paper Abstract

Civil infrastructures are generally the most expensive investments in a country. Concrete has been used extensively in the construction of most of the civil infrastructures. Structures made of concrete have long life span and are rarely replaced once they are erected. During the service life, the concrete ages and deteriorates leading to the loss of structural integrity. One of the major factors for the deterioration of concrete is the attack from environmental factors such as sulfate and acid. This paper presents some experimental results on the effects of environmental attacks on the system performance of impedance-based structural health monitoring. Two types of environmental factors are investigated - sulfate attack and acid attack. The experimental results show that impedance-based health monitoring technique is capable of identifying the change in the material property of concrete due to chemical attacks. Another interesting observation is that the impedance-based monitoring technique appears to be sensitive to the moisture contents in the concrete cube.

Paper Details

Date Published: 28 June 2002
PDF: 8 pages
Proc. SPIE 4696, Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways, (28 June 2002); doi: 10.1117/12.472576
Show Author Affiliations
Kevin K. Tseng, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 4696:
Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu; Darryll J. Pines, Editor(s)

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