聚丙烯纤维对改善高强混凝土高温作用后劣化性能的研究  

The Experimental Study on Deteriorated Property of High Strength Concrete After High Temperature Improved by Polypropylene Fiber

作　　者：徐晓勇[1] 马彦飞[1] 石国柱[1] 

机构地区：[1]安阳师范学院土木建筑工程系,安阳455000

出　　处：《吉林建筑工程学院学报》2009年第1期5-8,共4页Journal of Jilin Architectural and Civil Engineering

基　　金：安阳市科技局科技攻关项目(2007G061)

摘　　要：通过对聚丙烯纤维高强混凝土高温后力学性能的试验研究,探讨了聚丙烯纤维高强混凝土的抗压强度、抗拉强度和抗折强度在不同温度下的变化规律,并与高强混凝土火灾后性能变化规律进行比较,分析了聚丙烯纤维改善高强混凝土高温爆裂现象的机理,还阐述了聚丙烯纤维对高强混凝土受高温作用后力学性能的影响机理.最后,对进一步地研究进行了展望。Through the experimental study on the mechanical property ofpolypropylene fiber reinforced high strength concrete（PPFRHSC）after high temperature, the paper discusses the influencing law of the compressive strength, splitting strength and rupture strength of PPFRHSC under different temperature, then compares the changing rule of PPFRHSC to that of high strength concrete（HSC）, analyzes the mechanical property of HSC spalling after high temperature improved by polypropylene fiber, and expounds influence mechanism of polypropylene fiber to the mechanical property of HSC after high temperature. Finally, expectation on further research is provided.

关 键 词：高温 聚丙烯纤维 高强混凝土 力学性能 爆裂 

分 类 号：TU528.572[建筑科学—建筑技术科学]