Flexural Behavior of Reactive Powder Concrete with Hybrid Section T- Beams

Abstract

Reactive powder concrete (RPC) is unique of the newest and greatest significant improvements in constructions field , it has usual excessive kindness happening current duration in the world owing toward its higher concrete properties , great ductility, durability, imperfect shrinkage penalties, great opposition to corrosion and abrasion. In this experimental investigation is carried out on the way to revision the flexural behavior of RPC with Hybrid Section T-Beams and the mechanical properties of this construction material. The experimental program included testing five beams to examine the things of steel fiber volumetric ratio, silica fume ratio, tensile steel ratio, hybrid section on flexural performance of RPC T-beams. The study was focused on determining the first crack load (Pcr), ultimate flexural strength (Pu),ultimate deflection (Δu), load-deflection behavior, letdown mode, strain supply across the depth of the beams and crack pattern at failure. The effects of steel fiber volumetric ratio and silica fume ratio were also considered in studying the mechanical properties of RPC mixes. Moreover, a study of hybrid beams exhibited that expending RPC happening web and normal concrete in flange efficiently enhances the enactment of T-beams in comparison with normal concrete T-beams and also studying hybrid beams exhibited that expending RPC happening flange and normal concrete in web efficiently enhances the enactment of T-beams in comparison with normal concrete T-beams.