掺钢纤维活性粉末混凝土的受压力学性能研究

Researches on the compressive mechanics properties of steel fiber RPC

通过掺加钢纤维改善活性粉末混凝土(RPC)脆性性能．进行28组不同尺寸的立方体试件、14组棱柱 体试件的受压试验,探讨钢纤维RPC在不同养护制度和纤维掺量下的立方体抗压强度及其尺寸效应、棱柱 体抗压强度、弹性模量、峰值应变等物理力学性能指标,并根据立方体试件受压破坏的现象对钢纤维作用 的机理做了初步的探讨．

The bnttleness of reactive powder concrete(RPC) can be improved by mixing steel fibers. Based on the compressive experimental of 28 groups of cubes and 14 groups of prism specimens, this paper discusse the physical and mechanics properties such as the cube compressive strength, the effect of size, the prism compressive strength, Young' s modulus and peak strain etc of the steel fiber RPC with different curing methods and different volume fractions of steel fiber; and introduce the mechanism effect of steel fiber by observing the phenomenon of the destroy of cube specimens.