Abstract
Polyethylene terephthalate (PET) waste, ubiquitous in packaging and shipping industries, offers logistical advantages through its lightweight, durable nature, fostering cost-effective transportation. However, concerns over PET’s environmental impact arise from its persistence in ecosystems and contribution to pollution, urging industries to prioritize responsible waste management and recycling strategies. Recognizing the pivotal role of the construction industry, leveraging PET recycling in asphalt mixtures presents an applicable solution to curtail the environmental footprint of PET waste. Roadway asphalt construction, a significant industry, holds substantial potential to integrate PET waste into asphalt, offering a promising avenue for sustainable waste utilization. This research investigates the integration of PET waste into Egyptian asphalt mixtures across nine distinct compositions, varying binder percentages (3.0%, 3.50%, and 4%) and PET ratios (6%, 7%, and 8%). Marshall and Hamburg Wheel Rutting tests were conducted, comparing these formulations against a control mix devoid of PET. Notably, optimal outcomes emerged from the 3% binder with 8% PET combination, exhibiting enhanced mix stability and stiffness while meeting established mix design standards, signifying promising improvements in sustainability without compromising performance metrics.
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