自密实堆石混凝土抗拉性能的试验研究  

Experimental research on the tensile performance of the self-compacting rock-filled concrete

作　　者：张志恒[1] 石建军[1] 杨晓峰[1] 金峰[2] 

机构地区：[1]南华大学城市建设学院,湖南衡阳421001 [2]清华大学,北京100084

出　　处：《混凝土》2007年第10期38-41,共4页Concrete

摘　　要：自密实堆石混凝土在拱坝、围堰、港口等结构中有广泛的应用前景。特别是在大坝混凝土结构中,坝体长期处于水压力作用下,抗拉性能的好坏是影响坝体质量和寿命的根本,又直接影响混凝土的开裂和变形。通过从自密实堆石混凝土块体中切割试验试样,研究堆石混凝土的劈裂抗拉强度、抗折强度,并建立抗压强度和抗拉强度的关系,给出相应的数学表达式,为工程提供合理的力学参数。Among the rock-filled arch bam, cofferdam,port, etc, the self-compacting rock-filled concrete （ RFC ） appears to be a prospect of future development.Tensile performance affects the quality, fractures and deformation of large dam in the action of the hydraulic pressure over a long period of time in the large dam concrete structure.By means of cutting the samples from the RFC test block directly,this test deals with the splitting tension strength and flexural strength of RFC and builds the relationship between the compressive and tensile strength, and gives out the relevant mathematics expression.This research is provided the reasonable mechanics parameter for engineering project.

关 键 词：自密实堆石混凝土 抗拉性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]