Use of PET Fibers – Polyethylene Terephtalate (Plastic Bottles) in the Composition of Asphalt Mixture Type BADPC 22.4

The use of plastic waste in construction represents an innovative solution for reducing the environmental impact of these materials. One of the most commonly recycled plastic types in construction is polyethylene terephthalate (PET), due to its durability, lightweight nature, and availability. In the construction industry, plastic waste and PET are incorporated either into cement concrete or asphalt mixtures, contributing to improved mechanical performance and the sustainability of these materials. In cement concrete, the addition of PET fibers can enhance crack resistance, durability, and flexibility while also reducing the need for conventional materials. In the case of asphalt mixtures, PET is used in the form of fibers or recycled aggregates, playing a role in enhancing road performance and extending their service life. In this study, experiments were conducted on the BADPC 22.4 asphalt mixture. In the first stage, the optimal bitumen content was determined, and for this content, the asphalt mixture was reinforced with PET fibers in proportions of 2%, 4%, 6%, 8%, and 10% to analyze their influence on the material's physical and mechanical properties.