Enhancing Sustainability in Construction through Recycled Concrete Aggregate (RCA): Technological and Policy Perspectives
Keywords:
Recycled Concrete Aggregate, sustainable construction, circular economy, demolition waste, mix design, policy frameworks, lifecycle assessmentAbstract
In the context of the circular economy, the incorporation of construction and demolition (C&D) waste as recycled concrete aggregate (RCA) offers a crucial chance to promote sustainability in the building industry. This research investigates the technological, financial, and environmental effects of using construction and demolition waste as RCA in the manufacturing of concrete. The potential of RCA to lessen landfill usage, cut greenhouse gas emissions, and lessen dependency on natural aggregates is highlighted. The study examines life cycle assessment (LCA) measures, performance features of RCA-based concrete, and existing practices. The results show that although RCA could have worse mechanical qualities than virgin aggregates, these impacts can be reduced with the right processing and mix design changes. Additionally, by encouraging resource efficiency, waste reduction, and material reuse, RCA supports the tenets of the circular economy. In order to effectively reap the benefits of recycling construction and demolition waste in sustainable construction practices, this study emphasises the necessity of updated standards, legislative support, and industry collaboration.
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