混凝土结构火灾损伤的热发光实验研究  

Experimental Study of the Thermal Damage in Concrete Structures on Fire Damage

作　　者：蒋锐 薛晨曦 蒋林葳 杨戈 胡景蕙 陈瑞晓 JIANG Rui;XUE Chenxi;JIANG Linwei;YANG Ge;HU Jinghui;CHEN Ruixiao(Henan Building Materials Research and Design Institute Co. Ltd.,Zhengzhou 450002,China)

机构地区：[1]河南建筑材料研究设计院有限责任公司,郑州450002

出　　处：《河南科学》2019年第2期225-229,共5页Henan Science

基　　金：国家自然科学基金(51608178)

摘　　要：在总结石英热发光特性的基础上,提出了应用石英热发光实验技术,诊断火灾后混凝土的烧伤程度,并应用预特大火灾的工程实践.结果表明,混凝土中的石英砂辉光曲线,客观反映了混凝土经历的温度上限,该方法与混凝土与混凝土微观结构受热破坏的微观结构研究和现有常规检测手段相结合,将对混凝土火灾损伤评估技术带来新的突破和发展.On the basis of summarizing the characteristics of quartz thermoluminescence,we put forward the application of quartz thermoluminescence experimental technology to diagnose the degree of concrete burns after fire and the engineering practice of applying pre-extra-large fire. The results show that the glow curve of quartz sand in concrete objectively reflects the upper limit temperature by concrete. This method brings the new breakthroughs and developments to the fire damage assessment technology of concrete by combining the research on the microstructure of thermal damage of concrete and the concrete with the existing conventional detection methods.

关 键 词：火灾 混凝土 热发光 温度场 

分 类 号：TU359[建筑科学—结构工程]