Reinforced Concrete with Synthetic Fibers (PET+PP) for Rigid Pavement Structures

Abstract

This work evaluated in the laboratory, the mechanical resistance at 28 days under monotonic load that undergoes a hydraulic concrete when adding contents in weight of 0%, 2%, 3% and 4% of synthetic fibers of Terephthalate Polyethylene (PET) and Polypropylene (PP) on the total weight of the aggregates. From the results obtained, it is concluded that the residual stress increases as a function of the content of synthetic fiber compared to conventional concrete or with 0% addition of synthetic fibers. The presence of fibers can contribute to the reduction of contraction cracks generated in the first 24 hours of concrete hardening and to the increase in ductility after rupture. The technique of the addition of synthetic fibers in concrete is technically feasible by obtaining a reduction in the routine and periodic maintenance of rigid paving slabs