STUDY ON LIMITATIONS OF THERMOGRAPHIC SURVEY APPLIED TO THE DETECTION OF DELAMINATION IN CONCRETE STRUCTURES
As a method of detecting delamination of finishing materials on external walls, the thermographic survey using thermal imager is widely used because of the advantages of easiness, rate of data sampling, and safety. However, since this method is based on the lack of heat conductivity of the delaminated area in comparison with that of the sound area of the building wall, which causes temperature differences between their surfaces, the limitations of this method depend largely upon natural weathering. This paper discusses the applicability and limitations of the method by carrying out an experiment and a heat balance simulation using Finite Element Method. As a result, the applicability and limitations of this method were clarified. In addition, it was proved that the thermographic survey shows a good performance for the detection of delaminated render or tile by choosing fine weather in proper seasons.
-
Corporate Authors:
Technomic Publishing Company, Incorporated
851 New Holland Avenue, Box 3535
Lancaster, PA United States 17604 -
Authors:
- Komiyama, T
- Tanigawa, Y
- Nakano, Y
-
Conference:
- Structural Materials Technology. An NDT Conference.
- Location: San Diego, CA
- Date: 1996-2-20 to 1996-2-23
- Publication Date: 1996
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 305-310
Subject/Index Terms
- TRT Terms: Concrete structures; Delamination; Detection and identification; Detectors; Finite element method; Materials; Performance; Safety; Statistical sampling; Surface temperature; Surveys; Thermographs; Weathering
- Uncontrolled Terms: Data sampling; Limitations
- Subject Areas: Bridges and other structures; Data and Information Technology; Design; Highways; Materials; Safety and Human Factors; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00725895
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 16 1996 12:00AM