The investigation is focused on the utility of steel slag in the reinforced concrete beams under static and impact loads through the experiment and simulations. The partial substitution of conventional coarse aggregate with steel slag aggregate 30 % and fibre volume was fixed at 0.75 %, were considered. The three-point bending test is used to evaluate the static response, while a impact test was employed for impact tests. It was observed that the influence of steel slag in the curved beam is found to be increased 36 % as compared to curved beam without steel slag, however, the addition of steel slag aggregate in the straight beam improves marginally, i.e. 4 % under static loading. In case of impact loading, the influence of steel slag in the curved beam is found to be increased 14 % whereas the addition of steel slag aggregate in the straight beam improves, i.e. 7 %, as compared to curved beam without steel slag. It is also concluded that the measured peak acceleration of MSS0 beams found higher as compared to the MSS30 and the reason may be due to the material density influences the acceleration of wave generated by the impact load. Also, the crack width in the straight beam MSS30 is 15 mm whereas same for the MSS0 mix found to be 35 mm and the reason for lesser crack width attributed to the good bonding between the steel slag aggregate and the concrete matrix lead to better ITZ. It was also observed that the crack width in the curved beam found to be 10 and 30 mm for MSS30 and MSS0, respectively. The measured acceleration found to be higher of MSS0 as compared to the MSS30. Further, the finite element analysis was performed using ABAQUS CAE and the concrete damage plasticity model and Johnson-Cook (J-C) material model were used in order to model the behavior of concrete and steel bar, respectively. The maximum deviation on the impact force on straight beam under static analysis (ABAQUS/Standard) found to be 21 % whereas same was found to be 12 % in the impact analysis (ABAQUS/Explicit).