摘要
建筑外墙外保温系统通常由保温层、增强层和装饰层三部分组成。潮湿问题对建筑物框架结构危害巨大,外墙外保温系统应留空隙以利湿气移除。如外墙外保温系统保温材料不具备一定的阻燃性能,发生火灾时火灾可能在保温层垂直传播。保温材料应依据材料导热系数、燃烧性能及价格选择。列举了三种国外标准对外墙外保温系统防火分隔的要求。
Usually the three parts of building external insulation system are insulation layer, enhancement layer and decoration layer. The external insulation system should have void to remove the wet since the wet harm the construction of building badly. The fire may spread vertically in side the external insulation system if the insulation materials in it is not antiflameing. The selection of insulation materials should consider the thermal conductivity and flame character and price. Requirements of external insulation system in three oversea codes were expatiated.
出处
《消防科学与技术》
CAS
北大核心
2010年第6期462-465,共4页
Fire Science and Technology
基金
北京理工大学科研基地科技支撑计划--火灾安全材料与技术教育部工程研究中心开放研究基金项目(ORF-FRM-2009-05)
关键词
外墙外保温系统
垂直传播
防火分隔
导热系数
external insulation system
spread horizontal
fire compartment
thermal conductivity
