Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
ISSN-L : 0033-9008
PAPERS
Detection of Concrete Spalling Using Active Infrared Thermography
Hisashi TANAKASeiichi TOTTORITatsuya NIHEI
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2006 Volume 47 Issue 3 Pages 138-144

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Abstract

Active infrared thermography is a method to detect concrete spalling by heating the surface of the concrete using irradiation devices, such as halogen lamps, xenon arc lamps and far-infrared irradiation devices. We carried out irradiation tests of plain plate specimens using all of these devices and compared the results with those obtained by transient heat-conduction analysis. Specimens with artificial voids were then prepared for active infrared thermography using a xenon arc lamp and subjected to a laboratory test. A field test carried out on an actual viaduct to prove the effectiveness confirmed that active infrared thermography could detect concrete spalling accurately.

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© 2006 by Railway Technical Research Institute
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