Waste-based Fiber Concrete Properties using Supplementary Material of Bead Wire Scrap K A Sambowo, A B Suherman, Prihantono, R A Sumarsono
Department of Civil Engineering, Engineering Faculty, State University of Jakarta
Abstract
Fiber concrete has gained its popularity for the past few years to improve the tensile capacity of concrete by the presence of natural or synthetic fiber as the supplement. In contrast, synthetic fibers are mostly derives from a high energy consumption process so that fiber concrete is still considered as an un-eco-friendly material. Thus, finding alternative materials for fiber is still a widely open area, such as by utilizing wire-based waste like bead wire scrap from the used tires. The purpose of this paper is to examine the fiber concrete properties of waste-based fiber concrete using up to 2% of bead wire scrap supplementary to the weight of cement. The physical and mechanical characteristics of bead wire scrap are eligible for the fiber in concrete in which tensile strength is up to 615 MPa. Split tensile test of the fiber concrete result is best at 0.5% of bead wire scrap supplementary with the split tensile capacity of 2.57 MPa. However, our investigation of the capacity of the fiber concrete shows a fluctuation of its supplementary variation percentage. This could be due to the non-uniformity of the fiber distribution in the concrete during mixing and molding processes.
Keywords: Waste-based Fiber Concrete, Bead Wire Scrap, Supplementary Material
