玄武岩纤维对混凝土力学性能的影响

Effect of Basalt Fiber on Mechanical Properties of Concrete

玄武岩纤维作为一种新型环保型纤维材料,在工程建设中已得到了一定的应用。本文通过不同龄期的混凝土抗压强度和辟拉强度试验,考察了玄武岩纤维对混凝土的增强程度。试验结果表明,玄武岩纤维的掺入能有效增强混凝土破坏时的延性,并提高各个龄期混凝土基体的抗压强度和劈拉强度,其中3d抗压强度和28d劈拉强度提高率较为显著,分别为9%和19%。试验分析结果可为玄武岩纤维在混凝土工程中的应用提供参考。

As a new environment - friendly fiber material, the basalt fiber has been used in engineering construction to a certain ex- tent. Through the tests for compressive strength and split tensile strength of concrete matrices in different ages, the reinforcement of basalt fiber for concrete was explored in this paper. As shown by the test results, the mixture with basalt fiber would efficiently, enhance the ductility of the concrete being broken, and improve the compressive strength and split tensile strength of concrete matrices in different ages, in which the compressive strength of concrete in the age of 3d and the split tensile strength of concrete in the age of 28d were improved more significantly, by 9% and 19% respectively. The test analysis results can be used as a reference for application of basalt fiber in concrete projects.