The propose of this investigation was to determine the distribution of bond stress between plain round bars and low strength concrete from cyclic pull-out testing. Considered main parameter was the length of embedment bars in this paper. From the test results, tensile stress and bond stress distribution of the embedded bar were obtained. The location of the peak bond stress shifted from the loaded end toward the unloaded end of the bars with increasing applied load. When tensile load decreased to zero the residual stress was occurred in the bar. In addition, even though the applied load was reversed, bond stress distribution along the bar was still constant.
