Recently, researches on FRP bars have been carried out as a solution to improve the durability of reinforcing steel bars. In the study, an experimental program was conducted to evaluate the development performance of GFRP bars for SFRC beams. Specimens were failed by splitting fracture. The development performance by the center lap joint was larger than the development of end of beam. As the lap length increased, the development performance was increased but not proportional.

This paper presents an experimental study investigating the bond characteristic of steel bars (D13, D16) on fluidity concrete mixed with recycled marble powder under tensile loads. Experimental results showed that average bond strengths of D13 series specimens and D13 series specimens were 18.00MPa and 15.67MPa respectively, and that specimen with the larger diameter of rebar that adhesion strength had the lower bond strength.