ブラックパネル温度に基づく熱劣化予想マップ : 屋外での熱劣化環境の定量化(その1)

Abstract

Heat is recognized as general degradation agent of most building materials. Therefore quantification of thermal degradation is essentialy important to discuss the durability. Based on the theory of chemical reaction rate, author proposed a thermal degradation simulation method to predict the service life of building materials. Introducing black-panel temperature, the property change of model material was estimated. The thermal degradation simulation method is consist of following steps. 1) From thermal aging test at several constant temperature, degradation material constants are obtained. Some supposed constants were used in this paper. 2) Black-panel temperature, which is an index of thermal degradation environment, is measured in outdoor and the relation between daily equivalent black-panel temperature and meteorological elements are analysed. The daily equivalent black-panel temperature in various area can be estimated by the observed meteorological data. 3) The property change of material can be calculated using daily equivalent black-panel temperature day by day, and the obtained results are plotted on a map.