Recycling of plastic waste polyethylene terephthalate (PET) as a modifier in asphalt mixture: study of Creep-Recovery at Low, Medium, and Hot Temperatures

One environmental problem in most countries is the huge quantities of plastic waste, which has different types polymers such as polyethylene terephthalate (PET), polypropylene (PP)., These plastics become a because their non-biodegradability, toxicity, etc. The recovery waste pavements an ecological technique that contributes to preservation natural resources. In this study, PET was used additive for hot mix asphalt at two sizes (2.50 1.25 mm, and 0.315 0.160 mm) three contents (3%, 5%, 7% by weight binder), modified mixes creep-recovery behavior tested four points bending test compared with control (without waste) temperatures (0°, 25° 50° C), were added directly mixture method dry process. results showed addition yields better could increase bituminous resistance against permanent deformation clear rigidity improvement various temperature it's more thermally stable can limit degradation risks mixtures mixture. Further, be prepared eco-friendly road construction less material cost.