EXPERIMENTAL STUDY ON FIRE RESISTANCE OF COMPOSITE SLABS FILLED WITH DEMOLISHED CONCRETE BLOCKS

摘要：

　　A new fireproof coating was prepared by using rice husk ash (RHA) as thermal-insulating aggregates and using alkali activated calcined kaolin geopolymer as green binder.Four composite slabs filled with demolished concrete blocks (DCBs) and fresh concrete (FC),two of which were protected by the new fireproof coating,and two composite slabs filled with FC alone were experimentally investigated in fire following the ISO834 standard heating process.The experimental results show that:(a) The new fireproof coating exhibits excellent thermal-insulation capacity when exposed to fire; and (b) The fire resistance of a composite slab filled with DCBs and FC is similar to that filled with FC alone.

关键词： Rice husk ash geopolymer fireproof coating demolished concrete block composite slab fire resistance

作者: Jing Duan Bo Wu Shuyi Zhang

作者单位: State Key Laboratory of Subtropical Building Science, South China Univ.of Technology, Guangzhou 5106 State Key Laboratory of Subtropical Building Science, South China Univ.of Technology, Guangzhou 5106

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 999-1005

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）