Replacing Coarse Aggregates with Sustainable Recycled Aggregates in Concrete

Civil Engineering

Sustainability is important to the well-being of our planet, continued growth of a civilization, and human progress. Concrete is one of the most commonly used construction materials in the world. However, the manufacturing of portland cement, an important constituent of concrete, leads to the release of momentous amounts of CO2, a greenhouse gas emission of one ton of portland cement produces about one ton of CO2 and other GHGs. The environmental problems associated with GHGs, in addition to natural resources problems, will play a leading role in the sustainable development of the cement and concrete industry. The focus of our research will primarily be aiming on the coarse aggregate replacement with recycled coarse aggregate materials. In order to attain the goal of ecological development it is necessary to make use of recycled materials and reuse them to provide a helping hand in controlling climate change and other environmental disasters. We have replaced the natural coarse aggregate or NCA with 100% of recycled coarse aggregate or RCA. The goal is to design a concrete that gives high strength, is cost-effective to produce on a larger scale and also gives increased workability.

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