A COMPARISON BETWEEN THE BOND STRENGTH OF RIBBED STEEL BARS AND GFRP BARS IN THE APPLICATION OF NEW MATERIALS IN THE CONSTRUCTION OF COASTAL STRUCTURES

The aim of this research is the comparison of bond resistance of steel round bar and GFRP.since that most of structures expose danger environment such as marine structures which are exposed to steel round bar erosion and with regarding this reason that the erosion finally leads to destruct concrete and also FRP round bars have non magnetic property without erosion so most researchers want to use steel round bar instead of FRP round bar as concrete reinforce material.But due to bond properties of FRP round bars rather than different round bars in this research theeffect of round bars properties and the bond behavior of steel and GFRP round bars are studiedperfectly . In this research a cubic sample with steel and GFRP grooved round bars has beenused perfectly. The results show that: bond resistance average of steel grooved round bars is 4 times of GFRP round bars

Keywords:

GFRP bars , bond strength , deformed rebar , steel bar , comparison