To study the effect of recycled polyethylene on physical and rheological properties of polymer modified bitumen

The purpose of this research was to investigate the influence that recycled polyethylene has on the rheological and physical characteristics of polymer-modified bitumen. In order to investigate the impact that polyethylene content has on bitumen binder, several different kinds of tests, including rheological, mechanical, thermal, and surface morphological examinations, were carried out. The rheological characteristics of the composite binder were investigated with the use of a dynamic shear rheometer. According to the findings of thermogravimetric analysis, the thermal stability of polyethylene modified binder is significantly enhanced in comparison to that of unmodified binder. The complex shear modulus, storage modulus, and loss modulus of the bitumen binder have all been enhanced as a result of the gradual rise in the polymer contents. The accumulation of polymeric waste as a result of day-to-day applications of polymer materials like building and packaging is one of the main contributors to environmental issues, and recycling polymers is one solution to this problem. Due to the fact that the majority of polymer materials are derived from oil and gas, the recycling of waste polymeric materials contributes to the conservation of natural resources. This article discusses the recent developments in the recycling of polymeric waste from traditional polymers and their systems (blends and composites), including polyethylene (PE), polypropylene (PP), and polystyrene (PS). Additionally, the paper introduces the concepts of mechanical and chemical recycling. In addition, the influence that mechanical recycling has on the attributes of recycled materials, such as their mechanical, thermal, rheological, and processing properties, is examined in this work. These properties are highlighted.