钢纤维掺量对活性粉末RPC混凝土抗拉强度的影响研究

Influence of Steel Fiber Content on Tensile Strength of Reactive Powder RPC Concrete

主要以不同的钢纤维掺量为研究对象,研究其对钢筋混凝土抗拉强度的影响,并进行了一系列的试验研究,主要对抗折、劈裂、轴心抗拉与抗压几个方面的强度同钢纤维掺量的关系进行了研究,在不同钢纤维掺量条件下分析了拉压比变化规律。实验结果表明,拉压比与钢纤维掺量呈正比,适量钢纤维的掺入,可使钢筋混凝土的劈裂抗拉强度、抗折强度等得到有效提高,钢纤维掺量的最佳含量为2.0%。

The influence of steel fiber content on the tensile strength of reinforced concrete was investigated through a series of experiments.The relationships between flexural strength,splitting strength,axial tensile strength, compressive strength and steel fiber content were studied,and the variation of tensile pressure ratio under the conditions of different steel fiber content was analyzed.The experimental results showed that the ratio of tensile pressure was proportional to the amount of steel fiber,and the addition of proper amount of steel fiber improved the splitting tensile strength and flexural strength of reinforced concrete,and the optimum content of steel fiber content was 2%.