Studi Eksperimental Besaran Mekanis pada Beton Serat dengan Penambahan Potongan Kawat Bendrat

Abstract

Fiber concrete is a common concrete made by adding fibers to the concrete mix to prevent cracking under loading and improve its mechanical properties. This method makes concrete more resistant to compressive, tensile, and flexural forces caused by weather, climate, and temperature that usually occur in concrete with large surfaces. Bendrat wire cut fibers, a natural fiber that is easy to find and obtained from factory manufacturing and cut to about 13 mm will be used as fiber concrete additive in this study. The purpose of this study was to assess the compressive strength, split tensile strength, and modulus of elasticity of concrete made with bendrat wire cut fiber additives at varying percentages of 0%, 3%, 6%, and 9%. In addition, superplasticizer and silica fume were added to improve the compressive strength and workability of the fiber concrete mix. At 7, 14, and 28 days of age, the fiber concrete was tested for compressive strength. The results showed that concrete with 9% fiber variation of bendrat wire fiber had a maximum compressive strength of 63.645 MPa, a maximum split tensile strength of 3.294 MPa, and a maximum elastic modulus of 37.442 GPa.