钢纤维长径比对水泥基复合材料力学性能的影响

Influence of steel-fiber long-diameter ratio on mechanical performance of cement based composite material

为研究钢纤维长径比对水泥基复合材料立方体抗压强度、劈裂抗拉强度和圆柱体轴心抗压强度的影响,进行了9组不同长径比镀铜微钢纤维水泥基复合材料立方体抗压强度、圆柱体劈裂抗拉强度和轴心抗压强度试验。试验研究表明:钢纤维水泥基复合材料的立方体抗压强度、圆柱体轴心抗压强度与劈裂抗拉强度随着钢纤维长径比的增大而提高。建立了钢纤维水泥基复合材料立方体抗压强度与圆柱体抗压强度比值K之间的关系,为钢纤维水泥基复合材料在土木工程的应用提供了理论依据。

In order to study the effect of steel-fiber long-diameter ratio on cubic compressive strength, splitting tension strength and the axial of the cylinder compressive strength of cement based composite material, nine groups of copper coated with different length-diameter ratio micro cube compressive strength of steel fiber cement based composite material, the axis of the cylinder block splitting tensile strength and compressive strength are tested.The results show that steel fiber cement based composite material of cube compressive strength, axis of cylinder compressive strength and splitting tensile strength increase with the increase of steel fiber length-diameter ratio. Set up the cube compressive strength of steel fiber cement based composite material and the relationship between the cylinder compressive strength ratio K, for steel fiber cement based composite material in civil engineering application provides a theoretical basis.