INVESTIGATION FOR REUSING RECYCLED AGGREGATES IN STRUCTURAL CONCRETE

Abstract

Demolition of old structures to make way for new and modern ones is common features in metropolitan areas due to rapid urbanization. Due to strict environmental laws and lack of dumping sites in urban areas, demolished waste disposal is a great problem. The study is a part of comprehensive program wherein experimental investigations have been carried out to assess the effect of partial replacement of coarse aggregate by demolished waste on tensile and compressive strength of recycled concrete for the period of 7 and 28 days. The compressive and tensile strength thus observed on has been compared with strength of conventional concrete. Test results show that the compressive strength of recycled concrete with 10% coarse aggregate and tensile strength of recycled concrete with 15% coarse aggregate of replacement by demolished waste at the end of 28 days is marginally higher than that of conventional concrete.