earticle

영어

This paper performed a study on the analysis of the flooring material carbonization pattern by flame liquid and general combustibles. The result of a carbonization pattern analyse through a microscope. It shows that a black glossy reticular structure marked on the carbonized surface when the 50 [ml] of gasoline and thinner sprayed and ignited a surface in the vinyl floor covering and the carpet. A boundary surface identified in the carbonized in the vinyl floor covering and the carpet. Also, an intermediate point exist between the boundary surface and the non-melted area in carpet surface. In the case of the cross-section of the carbonized carpet, the thin vinyl wires and bonding layer are burned by fire heat. In addition, the case-hardening layer is severely carbonized, and the buffer layer and underlying layer are also partially carbonized and discolored. When burning the vinyl floor covering, laminate floor and carpet after placing and igniting the piece of cotton and timber on them with 50 [ml] of gasoline being sprayed on it, it was seen a clear distinction made on the boundary surface. The carbonized area has black color with a matte or polish parts. The boundary of the carpet has been marked with a narrow line. A little intermediate point exist between the boundary surface and the non-melted area. As can be seen from the above results, it proves that there are differences between flammable liquids and general flammable materials in a surface and cross-section of carbonized pattern even though same the flooring material is used. Therefore, it is thought that these results can be utilized to investigate patterns of arson and accidental fire by flammable liquid. Furthermore, it can be proposed a new technique for the carbonization pattern of a flammable liquid and general combustibles.