Steered fiber orientation: correlating orientation and residual tensile strength parameters of SFRC

Abstract Adding steel fibers to concrete improves the post-cracking tensile strength of composite material due bridging cracks. The residual performance is influenced by fiber type, content and orientation with respect crack plane. latter a main issue in fiber-reinforced elements, since it significantly influences structural behavior. aim this research develop tailor-made casting method orient order optimize for applications. To aim, mechanized concreting device that induces such preferred designed fabricated. It uses vibration series narrow channels guide fibers. A oriented produced using hybrid system macro micro high-performance concrete. From same batch, specimens are cast both without device, obtaining different levels orientation. Three-point bending tests performed measure compare capacities standard according EN 14651. Elements favorable show significant increase beams. Finally, computed tomography an electromagnetic induction employed better assess distribution Their results good agreement enable link parameters