| 초록 |
This study investigated the combustion properties of cypress specimen for the constructional interiors, especially focusing on fire hazard properties in fire scenarios. Heat hazard properties were measured by using a cone calorimeter (ISO 5660-1). The external heat flux was maintained at 50 kW/m2. Metal oxide was used Al2O3, Co3O4 and SnO. Metal oxide to silicone sol compounds were dispersed with 20 wt% vs. 80 wt%. The maximum heat release rates were decreased by 36 to 71%. Fire performance index (FPI) of the specimens were increased by 204% to 1478%, compared with uncoated specimen. The fire hazard due to fire performance index increased in the order of SnO < Al2O3 < Co3O4 < cypress. The fire growth index decreased from 69% to 91%, compared with uncoated wood. The fire hazard due to fire growth index increased in the order of SnO < Al2O3 < Co3O4 < cypress. A comprehensive assessment of fire hazard properties shows that metal oxide/silicone sol compounds reduced heat hazards. |
