The construction of flexible pavement is most commonly done by the bituminous mix. It constitutes asphalt or bitumen acting as a binder and is mixed with aggregate which is compacted after being laid in layers. The conventional bituminous pavement with proper design and execution under usual circumstances gives satisfactory results, but often in various conditions, the performance is very low. With the increased volume of traffic, increased loads, and variation in seasonal as well as daily temperature the asphaltic concrete pavements have shown better performance. On the contrary, the performance of bituminous pavement is very low in damped conditions. On considering these factors the modification of bitumen and the addition of polymer in bitumen has been an alternative. Experiments have been conducted and inferred that the addition of polymer to binders has helped to increase the cohesive bond between the binder and aggregate which in turn has improved the characteristics of asphalt pavement to meet the growing need. The additive used to modify the mix must satisfy the essential strength as well as economic aspects. India has rapid use of plastic in its lifestyle and is increasing day by day. These are major threats to society and management is another major issue. The use of recycled material in road pavement is one of the most innovative forms of sustainability. Thin bags are mainly composed of low-density polyethylene which is used for packing, protecting, and many applications. The Low-Density Polyethylene which is one of the polymers when experimented has indicated the potential of enriching the asphalt mixture. The study aims to add a varying percentage of the polymer as an aggregate coat and to find the optimum percentage by weight of polymer to be added to the mix. A comparison is to be done between the conventional and polymer-added mix to find the difference in rheological properties between them. The prospect of the experiment is to know that the addition of polymer (mainly waste plastic) results in an improvement in the properties of the road which results in minimization of maintenance of road work which in turn is economical. It is also expected to substantially reduce the volume of environmentally hazardous plastic and environmental pollution.