玄武岩纤维再生混凝土及其轴压短柱力学性能分析

随着再生混凝土研究和应用的不断深入,研究再生混凝土的力学性能及其结构的耐久性问题显得尤为重要.纤维再生混凝土可显著提高再生混凝土的力学性能,为其在土木工程上的应用提供了重要的理论依据和参考价值.通过对再生粗骨料基本物理和力学性能参数的研究,讨论了不同玄武岩纤维掺量对3种再生骨料取代率(0%,50%,100%)下再生混凝土的物理和力学参数的影响,对比分析了再生混凝土轴压短柱在不同纤维掺量下的力学性能.研究结果表明,玄武岩纤维对再生混凝土的增强效果要优于对普通混凝土的增强效果,说明玄武岩纤维可用于增强再生混凝土及其短柱的力学性能.

Experimental Research of Mechanical Properties of Basalt Fiber Aggregate Concrete and Its Short Columns under Axial Compression

The mechanical properties of basalt fiber aggregate concrete(BFAC) and its short column were studied,which included the durability of recycled aggregate concrete(RAC),RAC and its structure,due to the engineering desire on the research of RAC.Fiber reinforced recycled aggregate concrete could improve the mechanical properties of RAC obviously,which would provide important theoretical basis and references for its application in the civil engineering.In this paper,the effect of basalt fiber with different contents on the physical and mechanical properties of RAC with the RAC replacement rates of 0%,50% and 100% were discussed,and comparison and analysis of the mechanical properties of RAC short columns with different fiber content under axial compression were conducted.The results showed that the basalt fiber could improve the mechanical properties of RAC greatly in contrast with the normal concrete,and the results also indicated that the basalt fiber could be used in strengthening the RAC and its short columns.