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运用ISORoom方法在全尺寸室内墙角火源条件下进行了复合板装潢材料火灾特性的研究,详细讨论了复合板的点燃、火焰传播和炭化物性以及室内火灾的发展过程。在墙角火源条件下,室内火灾发展过程可分为四个不同阶段,而在每一发展阶段,东面和北面墙上复合板分别存在四个和三个明显不同的区域。当区域四内的复合板被点燃、燃烧面积急剧扩大时轰燃现象发生。炭化结果表明,墙上复合板存在两个剧烈燃烧区:一个发生在区域一,另一个在侧墙与天花板交界的区域。研究旨在为建立室内火灾条件下复合板装潢材料的火灾特性模型提供实验依据。
The ISORoom method was used to investigate the fire characteristics of the composite panel decorating materials under full-scale indoor corner fire conditions. The ignition, flame propagation, charring properties and the development of indoor fires were discussed in detail. Under the corner fire source conditions, the development process of indoor fires can be divided into four different stages. At each stage of development, there are four and three distinctly different areas on the east and north wall composite panels, respectively. The flashover phenomenon occurs when the composite panel in area four is ignited and the burning area is dramatically expanded. Carbonization results show that there are two intense burning areas on the wall composite board: one in the area one, and the other in the area where the side wall and ceiling are at the junction. The research aims to provide experimental basis for establishing the fire characteristics model of composite panel decorating materials under indoor fire conditions.