Utilization of Plastic Waste in Developing Sustainable Construction Pavers
摘要
The construction industry significantly contributes to environmental degradation through carbon-intensive cement production and unsustainable resource use, while plastic waste continues to pollute ecosystems globally. This study explores a dual-solution approach to these challenges by utilizing Acrylonitrile-butadiene-styrene (ABS) plastic waste as a raw material to manufacture sustainable plastic-sand pavers. Locally sourced ABS plastic was shredded, mixed with manufactured sand in a 1:1 ratio, and processed to create durable pavers. The study conducted comparative tests on plastic-sand and traditional concrete pavers, including compressive strength and water absorption evaluations. Results demonstrated that plastic-sand pavers exhibit superior compressive strength (19.8 MPa), significantly lower water absorption rates (as low as 4.81%), enhanced thermal resistance, improved soundness with minimal structural degradation, and higher hardness levels compared to concrete pavers. These findings underscore the potential of plastic-sand pavers as a sustainable alternative, addressing both plastic waste management and carbon emissions in the construction industry. By repurposing waste into high-performance building materials, this study contributes to the discourse on sustainable construction and circular economy practices. The proposed methodology offers scalability, adaptability to various waste streams, and the potential for widespread adoption, particularly in resource-constrained regions like Pakistan. Further research on long-term performance and economic feasibility is recommended to bridge the gap between innovation and industrial application.