Bond of steel reinforcing bars in self-prestressed hybrid steel fiber reinforced concrete

•The bond behavior of steel reinforcing bars in hybrid steel fiber reinforced concrete (HSFRC) made with micro and macro steel fibers was investigated.•Without increasing the total fiber volume, the hybrid use of micro and macro steel fibers increased bond strength and initial bond stiffness by up to 31% and 60%.•The bond stress-slip model was extended to hybrid steel fiber reinforced concrete and prediction models for the bond strength and stiffness were developed.•It was proven that the mean crack width of reinforced concrete beam members can be reduced by 20–33% by virtue of the enhanced bond.