• Journal of the Society of Disaster Information
• /
• v.12 no.3
• /
• pp.292-299
• /
• 2016

The insulation in buildings is very important. Insulation used in the building is largely divided into organic and inorganic insulation by its insulation material. Organic insulations material which are made of styrofoam or polyurethane are extremely vulnerable to fire. On the other hand, inorganic insulation such as mineral-wool and glass-wool are very week with moisture while they are non-flammable so that its usage is very limited. In this study, inorganic heat insulating material developed and the properties of thermal conductivity evaluated. The thermal conductivity and the water absorption of the sample in less than 50mm thickness of the board is less than 0.05W/mk, 3.0%. Bending strength and the water repellency is more than $25N/cm^2$, 98%.