The aim of this research is to investigate the influence of bamboo fiber on the mechanical properties of high strength concrete. The fiber was taken 0%, 0.5%, 1% and 1.5% against the weight of cement. The mix design conducted using weight comparison method. The test carried out at 28 and 56 days. The compressive and tensile strength test 28 days showed concrete obtained an average value of 62.47 MPa and 3.444 MPa for 0%, 59.83 MPa and 4.246 MPa for 0.5%, 59.07 MPa and 4.907 MPa for 1%, 54.92 MPa and 5.379 MPa for 1.5% bamboo fiber. The test at 56 days obtained 62.56 MPa and 4.907 MPa results with 0%, 60.77 MPa and 5.143 MPa at 0.5%, 59.82 MPa and 5.331 MPa at 1%, 55.11 MPa and 5.426 MPa with 1.5% use of bamboo fiber. The decrease in compressive strength on test 28 days occurred, which was close to the strength design, and there was an increase in the 56-day test. Tensile strength test of 28 and 56 days show an increase in each percentage of bamboo fiber added, where the optimal value obtained from the addition of 1.5% bamboo fiber.

本研究的目的是研究竹纤维对高强混凝土力学性能的影响。纤维取水泥重量的 0%、0.5%、1% 和 1.5%。采用重量比较法进行配合比设计。该测试在第 28 天和第 56 天进行。28天的抗压和抗拉强度试验表明，0%混凝土的平均值为62.47 MPa和3.444 MPa，0.5%的混凝土为59.83 MPa和4.246 MPa，1%的混凝土为59.07 MPa和4.907 MPa，1.5%的混凝土为54.92 MPa和5.379 MPa竹纤维。在 56 天的测试中，使用 0%、60.77 MPa 和 5.143 MPa 的 0.5%、59.82 MPa 和 5.331 MPa 的 1%、55.11 MPa 和 5.426 MPa 的竹纤维使用 1.5% 的竹纤维时，获得了 62.56 MPa 和 4.907 MPa 的结果。试验 28 天发生抗压强度下降，接近强度设计，56天的测试增加了。28 天和 56 天的拉伸强度测试表明，竹纤维的添加百分比每增加一个百分比，其中竹纤维添加 1.5% 的最佳值。