高强混凝土火灾后性能变化规律研究  

THE VARYING RULE AND THE NON-DESTRUCTIVE MEASURING OF HIGH PERFORMANCE CONCRETE AFTER FIRE

作　　者：李敏[1] 钱春香[1] 孙伟[1] 

机构地区：[1]东南大学材料系,南京210096

出　　处：《工业建筑》2002年第10期34-36,共3页Industrial Construction

基　　金：江苏省自然科学基金(BK990 16) ;国家自然科学基金重点项目(5 993 8170 )

摘　　要：高性能混凝土具有好的工作性 ,高强度及优异的耐久性。但由于低的渗透性 ,高强混凝土在火灾高温下不可避免地发生爆裂 ,限制了高强混凝土在建筑结构上的应用。通过对高强混凝土在火灾作用后的物理、力学性能变化规律进行研究 ,讨论火灾温度、强度等级、试件尺寸等对性能的影响 。Due to low penetrability, the high strength concrete spalls inevitably in fire, which restricts the application of high strength concrete in building structure. The variety rule of physical, mechanical properties of high strength concrete after fire are presented. The effect of temperature, strength grade and specimen size on performance of high strength concrete is discussed. The variety rule of normal strength concrete is compared to that of high strength concrete.

关 键 词：火灾 高强混凝土 物理性能 力学性能 

分 类 号：TU528.31[建筑科学—建筑技术科学]