Experimental investigation on the composite effect of steel rebars and macro fibers on the impact behavior of high performance self-compacting concrete

•The hybrid use of rebars and fibers on impact properties of concrete was studied.•The reinforcement mechanism of the influences of steel rebars and different fibers on failure impact energy was explained.•The penetration depth for each mixture was analyzed.•The hybrid use of rebars and fibers provided positive composite effect on failure impact energy.•The distribution of the number of blows to the first crack and to the failure followed Weibull distribution.