The menace of plastics in Nigeria has increased significantly and its recycling has become one of the major challenge. Consequently, the study selected waste Polyethylene terephthalate (PET), to probe the prospect of using it as an aggregate in concrete production. The pet bottle was melted and molded in shape of aggregate. Concrete cubes measuring 150×150×150 mm and beam samples measuring 100×100×400 mm were cast, using a mix ratio of 1:2:4 and a water/cement ratio of 0.5. The samples were tested for workability, compressive strength and flexural strength at 0% (control mix), 5%, 10%, 15% and 20% replacement of coarse aggregate (by weight) with plastic aggregate at 28days age of curing. At 5% and 10% replacement there is an observed 10% and 20% decrease in the compressive of concrete compared to the control. The minimum value of compressive strength was 19.27 N/mm2 at 20% which exceeds the minimum standard for structural application. There was an observed 8.4% and 32% decrease in flexural strength at 5% and 10% respectively. The study concludes that the plastic aggregates can be incorporated upto15% in concrete. Its use in concrete production would lead to better and profitable environmental control of industrial waste.