赤外線法を利用した外壁タイルの剥離評価に関する解析的研究

Abstract

In this study, the applicability of thermography method on the evaluation of tile separation was examined by using the three dimensional finite element method for the heat conduction analysis. The relationships between the degree of tile separation and the temperature disribution of tile surface were discussed. Following results were obtained in this study : 1) When the exterior air temperature is lower than the interior one, the surface temperature of tile separating from the concrete is higher than that of tile adhering to the concrete, but the former becomes lower than the latter in the case that the exterior air temperature is higher than the interior one. 2) The effect of tile separation on the temperature distribution of exterior wall increases with decreasing the separation depth, but the temperature distribution of interior wall is hardly affected by the tile separation. 3) It is necessary to clarify the combined effects of interior and exterior air temperatures on the temperature distribution of tile surface, so as to predict exactly the tile separation by the thermography method.