Performance of concrete materials containing recycled aggregate from construction and demolition waste

Abstract

The performance of recycled aggregate material from construction and demolition waste can affect concrete material strength that incorporates recycled aggregate in high volume. The current research assesses the overall benefits of recycled aggregate materials from construction and demolition waste from different sources. It evaluates the performance of concrete materials containing recycled aggregate as a substitute for conventional aggregate materials at various rates for coarse and fine aggregate materials. The investigation includes basic laboratory works on the behavior of concrete materials. These tests consist of primary characteristics of the recycled aggregate materials that can determine the material performance while substituting virgin aggregate materials. The substitution rate varies to identify the best version of the materials. It ranges from 0% to 100%, and the data included in the current research work was obtained from site visits to the existing recycling plants in Delhi, India. The maximum replacement rate of recycled aggregate materials to the natural aggregate materials has been used up to 100%, and the effects have been analyzed. The substitution rate is highly dependent on the conditions and purpose of the engineering projects. Concrete materials perform accordingly as it is related to the substitution rates directly.