Concrete is amalgamation of different ingredients these are cement, fine and coarse aggregate which have different chemical and physical properties. It is the most widely used human made construction material in the world due to its versatility, strength, toughness and ease to place into shapes and forms. Nowadays saving such limited resources of concrete ingredients is one concern. Aggregate takes place from 65-75% by volume of the concrete works. In future, there is a huge demand of aggregates along with an increasing rate of the construction industry. Consequently the industry is challenged by an increase in cost of aggregate and shortages. Now the construction industry is in need of finding effective aggregate material for increasing the strength of concrete structures with low cost, and with minimizing environmental damage. Today large quantities of waste are generated from empty cans and bottle caps of beer, soft drinks and packed products. This is an environmental issue as waste is difficult to biodegrade and involves processes either to recycle or reuse. Therefore, this research investigated the effects of partial replacement of coarse aggregate with waste steel bottle caps (WSBC) in concrete and assessed the compressive strength and flexural strength of concrete for different sample cubes and rectangular sample beam in experimental laboratory to attain a specified compressive strength of 25 MPa concrete strength respectively. Different concrete cubes and beams are casted with varying mixing proportions of WSBC: 10%, 20%, 30%, 40% & 100%.The concrete samples are cured in a laboratory setting and strengths are measured at 7 and 28 days records. The study examines the conventional concrete strength with partial replacement of WSBC as aggregate in concrete strength. As result of this study shows that partial replacement of WSBC with accustomed aggregate in concrete give an impressive result in compressive strength than the control mixes; but the strength decreased with an increase in percentage replacement of WSBC. However, no that much change in flexural strength. It is almost equivalent with control mix. Overall, the outcome of the study will be a bridge for sustaining the flourishing construction industry and reducing waste, saving cost and conserving natural aggregates. Therefore, this research illustrates the use of WSBC as a potential replacement of aggregate material.