Experimental Investigation on Bond Stress Behavior of Sand-Coated GFRP Bars with Concrete

In this paper, a comprehensive experimental study was conducted to investigate the bond performance of sand-coated glass fiber reinforced polymer (GFRP) bars embedded in normal concrete with different bar sizes and regions beams following regulation Rilem beam. The achieved results are compared analytical equations presented by current codes reputable recent research using average strength free end stress-slip curves. This contains effect size length on stress slippage GFRP bars. From data observed, 8mm is about 23% higher than 10mm 16% 12mm for 10D length. showed maximum 13.8MPa among all other specimens while slip measurement detected from 1.519mm. Bond beam test value almost twice those derived codes. general, as increases decreases, tends fall. Similarly, rises rises. recommended RILEM 1994 inadequate Finally, show steel 20%.