Abstract
In this study, fire risk was evaluated using Chung's equations-II, Chung's equations-III, and Chung's equation-IV to predict the fire risk and grade of wood for construction materials. Spruce wood, Rigida pine, Lauan, Chestnut, Oak, and Zelkova wood were used as test pieces. The fire characteristics of the test pieces were investigated using a cone calorimeter (ISO 5660-1) equipment. After combustion of the specimen, FPI-II measured by Chung's equations was 1.36 to 113.49 s2/kW, and FGI-II was 0.01 to 0.29 kW/s2. FPI-III was 4.53~378.30 based on polymethylmethacrylate (PMMA), and FGI-III was 0.07~1.93 based on PMMA. The fire risk index-IV, which is a fire risk rating index, was 0.33 and 0.43 for Spruce and Lauan, respectively, indicating that they are woods with relatively high fire risk.
Publisher
Korea Institute of Fire Science and Engineering