earticle

영어

This study describes the techniques to analyze the components of carbonized paper wallpapers in fire scenes and estimate the ignition point. The conventional ignition point estimation methods include a number of techniques from the US' NFPA 921 and Japan's TFD Materials Information, such as wood carbonization depth measurement, gypsum boards calcination measurement, and metal deformation analysis. In the United States and Japan, these techniques can be applied well to various fire scenes because most housing buildings are finished with gypsum boards and paints. However, in the case of Korea, there are limitations in applying the above techniques as most buildings are finished with wallpapers on fire- resistant substances or mortar. Wallpapers are carbonized in a fish scale shape by the radiant heat generated at the ignition point, and the carbonized wallpapers show differences according to their locations. The amounts of the soot left on the wallpapers also vary. Nonetheless, there are no academic theories or studies conducted in relation to this. The purpose of this study is, therefore, to analyze the components of carbonized wallpapers collected from fire scenes and tests, and to establish ignition point estimation techniques that can be applied to fire cases in Korea