Use of bamboo fiber on the relationship between compressive strength and split tensile strength of high strength concrete

Abstract

This study was to determine the influence of fiber bamboo on the split tensile strength of concrete and to know the relationship between compressive and tensile strength. In the concrete mixture, fibre bamboo is added with a percentage of 0%, 0.5%, 1% and 1.5% of cement. Concrete strength of the design is 60 MPa with w/cvalue of 0.25. The coarse aggregate used had a maximum diameter of 12 mm, while the plasticizer used was 2% of cement. Testing was carried out at 28 days. For 0% fiber bamboo, the obtained strength was 62.47 MPa and a split tensile strength was 4.15 MPa. For 0.5% fiber, the obtained strength was 59.83 MPa and a split tensile strength was 5.12 MPa. For 1% fiber, the obtained strength value was 59.07 MPa and a split tensile strength was 5.91 MPa. For 1.5% fiber, the obtained strength value was 54.92 MPa and a split tensile strength was 6.48 MPa. Using fiber bamboo of the test shows a decrease in compressive strength, where the use of 0.5% fiber bamboo in concrete was the most optimal value. The use of the highest-fiber bamboo content of 1.5% achieved the optimum value of split tensile strength of 6.48 MPa.