硬硅钙石-SiO_2气凝胶复合纳米孔超级绝热材料在钢结构防火中的应用探讨  

Inquire into applcation of xonotlite-SiO_2 aerogel compounded nanoporous super thermal insulation material in fire protection of steel structures

作　　者：徐国强[1] 倪文[1] 梁涛[1] 韩建强[2] 杨海龙[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]河北理工大学建筑工程学院,河北唐山063009

出　　处：《露天采矿技术》2007年第2期70-74,共5页Opencast Mining Technology

基　　金：国家863资助项目(2003AA302610)

摘　　要：将具有中空结构的硬硅钙石二次粒子和具有纳米孔结构的SiO2气凝胶用真空复合技术将其制备成具有良好绝热性能的绝热材料。用此材料包覆钢构件的防火保护方法具有防火涂料无法比拟的优点,是一种理想的钢结构耐火保护方式。介绍了该防火板的生产工艺、防火原理及施工方法,探讨了这种防护方法的特点及推广前景。The super thermal insulating materials can be prepared by using xonotlite with hollow structure and SiO2 aerogel with nanometer pores structure through vacuum compounded method. This fire protection method by using the material to envelope steel members has an unparalleled advantage over the fireproof paint and is a kind of ideal fireproof protection of steel structures. This paper introduces the technique of producing fire dampers, fireproof principles and job practices, explores the characteristics of the protection method and the prospect of popularization.

关 键 词：硬硅钙石 SIO2气凝胶 超级绝热材料 铜结构防火 防火板 

分 类 号：TU551[建筑科学—建筑技术科学]