Study of the ignition properties of oriented strand boards exposed to radiant heat flux

摘要

The paper deals with the study of effect of heat flux on the ignition OSB boards of different thicknesses. Ignition is the first of the fire properties to be taken into account for assessing the fire hazard. Ignition of the materials is contained in ISO standard 5657: 1997, where is described a method for testing the ignitability of building products. It is a simple aspect of the fire situation characterized by a radiant heat source, which are exposed to test samples. It is a modification of this method was used to determine the time to ignition and tested mass loss OSB when exposed to the pre-defined heat flux. Another characteristic observed in this work, the behavior of the plate materials according to the thickness in order to define the behavior of the thermally thin and thermally thick materials exposed to heat flux.