Around the world, concrete is one of the second most consumed material only next to water and the amount of consumption was increased was rapidly increasing over the past few decades due to rapid growth in industrialization and urbanization. Because of continuous consumption of different ingredients of concrete results in drastic depletion of natural resources and demand on such ingredients also getting increased. In this study, fibre reinforced concrete of grade M30 was made with GGBFS (Ground Granulated Blast Furnace Slag) and RCA (Recycled Concrete Aggregate) obtained from C & D Waste (Construction and Demolition waste) were utilized as a substitute material for cement (0% to 50% at an interval of 10%) and coarse aggregate (0% to 100% at an interval of 20%) respectively. In addition, BF (Basalt Fibre) was added into the concrete mix by 0% to 0.9% at an interval 0.3%. Optimum level of GGBFS replacement and BF addition were determined with the help of strength properties and the RCA content was keep on varying from 0% to 100%. In this article, RC (Reinforced Concrete) beams were made with BFRC (Basalt Fibre Reinforced Concrete) which is of size 150*200*1800mm. Totally 6 beams were prepared with BFRC in order to check the structural behaviour of RC Beams. Numerical investigation was conducted on the RC beams with the help of finite element software (ANSYS) and the results were compared with the experiments. This study mainly focuses on structural performance of RC beams like load vs deflection behaviour and crack analysis.