Study on environmental control method in public and conservation of decorated stone chamber in tumulus

本研究旨在为墓葬装饰石室的现场保护和公共环境控制提供技术基础，对装饰石室的外观、温度、湿度、结露等的年变化进行了现场测量和调查。通过对石室内水分流动的分析，阐明了结露的机理，并提出了防止结露的对策。其次，以石材为材料背景，考虑光线的多次折射，提出了石材表面润湿后的外观变化模型，阐明了润湿对石材表面外观的影响。最后，我们研究了含盐风化的材料的吸附等温线，并提出了一个模型来预测吸附等温线考虑盐的浓度和它的结晶。

The purpose of this study is to develop the fundamental techniques for environmental control method in public and conservation of decorated stone chamber in tumulus on site.We measured and investigated annual variation of the appearance of the decorated stone and temperature and humidity, condensation on site. We analyzed moisture flow in the stone chamber in order to clarify mechanism of condensation and proposed the counter measure to prevent the condensation. Next, we proposed a model to change of appearance of decorated stone by wetting considering multi refractions of light and stone as the material background and clarified the change of appearance by wetting. Finally, we investigated sorption isotherm of the material which includes salt caused salt weathering and propose a model to predict the sorption isotherm considering concentration of salt and its crystallization.