The Influence of Bamboo Fibers as Additive on the Mechanical Properties of High Strength Concrete

Abstract

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.