Performance of hybrid bars in corrosion and flexure in concrete beams

Kamar, R. R.; Debaiky, A. S.; Mansour, M. H.

doi:10.21608/erjm.2020.72123

Performance of hybrid bars in corrosion and flexure in concrete beams

Document Type : Original Article

Authors

¹ Researcher, Civil Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt.

² Associate Prof, Civil Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt.

³ Assistant Prof, Civil Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt.

10.21608/erjm.2020.72123

Abstract

Corrosion of reinforcing steel is a serious problem worldwide; the problem of steel rebar corrosion leads to a
reduction in the lifespan of the structure and adds to the maintenance costs. Many techniques have been developed in
recent past to reduce corrosion but none of these solutions seem to be applicable as an adequate solution to the
corrosion problem. Besides the use of Fiber Reinforced Polymer (FRP) rebar, hybrid rebar consisting of both FRP
and steel are also being tried to control the problem of steel corrosion. This research evaluates the performance of
hybrid rebar in corrosion resistance by inducing natural corrosion in a number of concrete cylinders with a hybrid
rebar embedded symmetrically. The research also studies the performance of hybrid rebar as a tension reinforcement
in concrete beams.

Keywords