紅外線熱影像溫差與空鼓率之關聯性研究

Research on the Correlation between Infrared Thermal Image Temperature Difference and Hollowing Rate

高大鈞(Kao Ta-Chun) ； 廖硃岑(Chu-Tsen Liao) ； 呂敏如(LU Min-Ju)

《物業管理學會論文集》 14屆 (2021/06) Pp. 161-167

摘要

業界常使用的外牆磁磚檢測方式分為破壞檢測和非破壞檢測，非破壞檢測又分為目視法、打音法和紅外線熱影像法。其中紅外線熱影像法可以快速地應用在現場檢測，成為不可或缺的勘檢方式。本研究為研究外牆磁磚產生空鼓劣化時，和正常磁磚的溫度差。因此製作一混凝土試體，並在試體上鋪貼射出還原二丁掛磚，磁磚背後設定不同空鼓率。實驗時使用鹵素燈加熱試體，藉由手持式FLIRE8進行紅外線熱影像法，探討打底層出現空鼓的磁磚和無空鼓的磁磚之間的溫度差異。試體施作打底層時，空鼓率的設定以25%、50%、75%進行討論。研究結果發現，加熱至10分鐘時，磁磚溫度與溫差最為穩定，空鼓率25%磁磚表面溫度為37.49°C，正常與空鼓磁磚溫差為2.01°C時，即可判斷磁磚產生空鼓現象。空鼓率為50%，磁磚表面溫度為38.19°C，溫差為2.25°C時；空鼓率為75%磁磚表面溫度為39.31°C，溫差為2.65°C。希望此研究成果提供外牆檢測人員作為參考依據，在實施紅外線熱影像法時，快速判別何處可能產生空鼓現象和約略空鼓率。

關鍵字

紅外線熱影像法 ； 空鼓率 ； 非破壞性檢測 ； 射出還原磚 ； 劣化檢測

並列摘要

The detection methods of external wall tiles commonly used in the industry are divided into destructive detection and non-destructive detection, and non-destructive detection is divided into visual method, sound method and infrared thermal imaging method. Among them, infrared thermal imaging method can be quickly applied in the field detection, and become an indispensable exploration method. This study is to study the temperature difference between the outer wall tile and the normal tile when the hollow drum is deteriorated. Therefore, a concrete test body is made and the reduction of the two-dimensional hanging brick is laid on the test body, and different hollowing rate is set behind the magnetic brick. In the experiment, the halogen lamp was used to heat the test body. The temperature difference between the hollow tile and the no drum tile was studied by infrared thermal imaging method with FLIR E8.When the test body is applied as the bottom layer, the setting of the empty drum rate is discussed in 25%,50%,75%.The results show that when heated to10minutes, the temperature and temperature difference of tile are the most stable, and the surface temperature of tile with 25% hollowing rate is 37.49 ° C. The temperature difference between normal tiles is 2.01 °.The hollowing rate is 50%, and the surface temperature of tile is 38.19 ° C. The temperature difference is 2.25 ° At C; The surface temperature of tile with 75% hollowing rate is 39.31 ° C. The temperature difference is 2.65 ° C。It is hoped that the research results can be used as a reference for the external wall inspection personnel to quickly identify the possible hollowing phenomenon and approximate hollowing rate when implementing the infrared thermal imaging method.

並列關鍵字

Infrared thermal imaging ； Hollowing rate ； Non-destructive testing ； Injection reduction brick ； Deterioration detection