| Summary: | 碩士 === 國立臺灣大學 === 土木工程學研究所 === 105 === Since Taiwan is located in the subtropical region, the weather is wet. External walls of the buildings in such environment tend to deteriorate. According to the statistics, there are more than three hundred thousand buildings in Taiwan over thirty years and most of them lack maintenance. Therefore, falling tiles are incidental and pose a danger for pedestrians walking the streets.
With detecting tiles of external walls, it is possible to prevent falling tiles in advance. Methods of detecting tile deterioration, destructive testing and non-destructive testing included, are numerous. Non- destructive testing is commonly used and fast without damaging the integrity of external walls. At present, common non-destructive testing has tap tone method, infrared thermography method, visual method, ultrasonic pulse velocity method etc. Infrared thermography method compared to other methods, it has wider range and do not need to contact objects directly. Much research home and abroad has applied infrared thermography method to tiles for exploring the difference between deteriorated tiles and normal tiles.
Through infrared thermography method, this research investigated whether solar radiation, temperature, humidity influence tile temperature difference, with two external walls of buildings in Kaohsiung as research objects. Additionally, this research proposed the minimum amount of solar radiation required to observe tile temperature difference for further research.
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