Investigating Eco-Friendly Concrete in the Construction Industry in Order to Improve the Circular Economy - A Literature Review - Abstract
The construction industry, responsible for significant greenhouse gas emissions and heavy natural resource consumption, is under growing pressure to adopt sustainable practices. The increasing demand for infrastructure, driven by rapid population growth, has intensified the environmental impact of traditional materials like concrete. However, incorporating recycled materials into concrete production presents an opportunity to reduce both energy use and greenhouse gas emissions, improving the sustainability of construction projects. This study examines literature from 2018 to 2024, highlighting key trends, challenges, and opportunities in the adoption of environmentally friendly concrete, and proposes strategies to promote circular economy principles in the industry. This study highlights the benefits of using ceramic waste as a partial replacement for cement and fine aggregates in sustainable mortar production, showing improvements both in mechanical performance and environmental impact. By substituting these materials, the environmental footprint of Portland cement can be reduced by up to 30%. Additionally, a mix containing 70% fly ash and 100% recycled aggregates achieves a compressive strength of 35 MPa. This approach not only lowers natural resource use by 50% but also enhances construction waste management. Furthermore, carbon emissions could be reduced by as much as 40%, advancing environmental sustainability. Experimental findings reveal that the inclusion of silica fume and fly ash improves concrete's mechanical properties while increasing its permeability. The use of ceramic waste and recycled materials in concrete offers a cost-effective, resource-saving solution that promotes sustainable and circular construction. These findings can serve as a valuable foundation for shaping policies on sustainable construction in various regions.