摘要
通过对不同钢纤维含量的活性粉末混凝土试件进行抗弯性能试验,研究钢纤维含量对其荷载-位移曲线及抗折强度的影响规律,分析了钢纤维活性粉末混凝土的抗弯破坏机理。结果表明:钢纤维对混凝土基体具有明显的阻裂作用,随着钢纤维含量的增加,试件荷载-位移曲线逐渐丰满,抗折强度增加,延性性能得到明显提高。
The flexural behavior of reactive powder concrete with different volume fraction of steel fibers has been investigated by the experiment,the influence of different volume fraction of steel fibers on the load-displacement curves and flexural strength were studied,and then the flexural failure pattern was analyzed.The results show that the crack resistance capacity of specimens was enhanced obviously because the steel fiber is here.The load-displacement curves was full and round,the ductility and flexural strength of specimens was enhanced when the volume fraction of steel fibers was increased.
出处
《混凝土》
CAS
CSCD
北大核心
2010年第10期53-55,共3页
Concrete
基金
河北省科技支撑计划项目(07215159)
河北省教育厅项目(20084642009127)
河北省建设厅项目(2009-223)
关键词
活性粉末混凝土
钢纤维
抗折强度
荷载-位移曲线
reactive powder concrete
steel fibre
flexural strength
load-displacement curves
