Partially Replacement of Coarse Aggregate by Structural Demolition Waste–A Step towards Green Concrete

In this project, we focus on developing green concrete by partially replacing coarse aggregates with structural demolition waste. The goal is to explore the feasibility of using recycled concrete materials to reduce reliance on natural aggregates. This will involve testing the properties and performance of the resulting concrete and comparing it with conventional concrete. The motivation for using demolition waste arises from growing environmental concerns about resource extraction. Discarded concrete waste in landfills contributes to environmental degradation, so reusing it can help reduce strain on natural resources and minimize landfill waste. Previous research has shown that recycled concrete aggregates can produce concrete with satisfactory strength and durability under certain conditions. While there may be slight mechanical property variations, proper treatment and grading can lead to viable construction materials. The environmental benefits of green concrete are significant, as it reduces the need for natural aggregates, preserves natural habitats, and lowers the carbon footprint of the construction industry. This approach supports sustainable urban development and resource conservation. Key Words: Recycled Coarse Aggregate, Compressive strength, Admixture, Silica Fumes