不同尺寸纤维自密实混凝土试件轴拉性能试验

Tensile Properties of Different Sizes Fiber Reinforced Self-compacting Concrete

采用粘贴法对尺寸分别为150 mm×150 mm×150 mm和100 mm×100 mm×400mm的纤维混凝土试件进行了轴拉试验。获得了轴拉应力-应变曲线,并研究了不同种类和不同纤维掺量的聚合纤维对混凝土轴拉极限承载力、极限应变的影响。结果表明:在自密实混凝土中掺入纤维能有效地提高混凝土的抗拉强度和峰值应变。

Based on axial tension test on polymeric fibers concrete specimens with the dimensions of 150mm×150mm×150mm and 100mm×100mm×400mm with epoxy pasting method,the axial tension stressstain curves were obtained,and the influence of concrete with variety and different polymeric fiber amount on axial tension ultimate bearing capacity and ultimate strain was studied.The result was shows that the tensile strength and peak strain of concrete are improved effectively by the mixing fiber in self-compacting concrete.