The flame-retardant evaluation of the impregnated kaya by boracic acid and sodium silicate

Abstract

The traditional wooden architectures and the roofs of kaya are decreasing year by year in Japan.It is necessary to keep the long-term durability of the roof.Although the examinations that could be evaluate the effectiveness of flame-retardant evaluation of the impregnated kaya by boracic acid and sodium silicate is not done well.In this study, the experiments for evaluating the flame-retardant properties of kaya by boracic acid and sodium silicate were enforced, and as the results of experiments, it was cleard that it becomes effective measures for preserving the kaya material for long terms by holding the kaya so as to increase the fire resistancy.