高强高性能混凝土极限拉应变性能研究  

STUDY OF ULTIMATE TENSILE STRAIN OF HIGH STRENGTH AND HIGH PERFORMANCE CONCRETE

作　　者：尹健[1] 周士琼[1] 谢友均[1] 

机构地区：[1]长沙铁道学院土建院,长沙410075

出　　处：《工业建筑》2000年第7期47-49,共3页Industrial Construction

基　　金：湖南省科委项目!项目编号 0 1- 95 2 - 73- 3

摘　　要：就C8 0～C10 0高强高性能混凝土的极限拉应变性能进行了初步探讨 ,试验结果表明 :HPC的极限拉应变比高强混凝土、普通混凝土的有明显提高 ,抗拉性能得到了改善 ,脆性有所降低 ,韧性相应提高。同时还提出了HPC极限拉应变与强度间的变化规律 ,给出了计算公式 ,数据回归分析表明用该公式来推定HPC的极限拉应变值精度较高。In this paper,an initial investigation has been made into the ultimate tensile strain of C80～C100 high strength and high performance concrete.The experimental results show:the characteristics of tension of high strength and high performance concrete has been greatly improved and brittleness of it has been reduced to a certain degree,toughness of it has been increased relatively.At the same time,the changing law of the high strength and high performance concrete between the strength and the ultimate tensile strain has been studied,and a formula of them was given.It is indicated by a regression analysis that the value of the ultimate tensile strain of HPC estimated through this formula has a higher precision.

关 键 词：高强混凝土 高性能混凝土 极限拉应变 

分 类 号：TU502.6[建筑科学—建筑技术科学]