Comparison Of Compressive Strength Of Concrete Made With Various Percentage Of Recycle Aggregate

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 compressive strength of recycle aggregate for the period of 7, 14 and 28 days. The compressive strength thus observed on has been compared with strength of conventional concrete. In fact, none of the results showed that recycled aggregates are unsuitable for structural use. However, some hypothetical problems related to durability aspects resulted in recycled aggregates being employed practically only as base filler for road construction. This paper focuses on the possibility of the use of recycled aggregate concrete as a structural material. For that purpose an experimental study of the shear behavior and strength of beams made with recycled aggregate concrete was studied