Plastic is found in abundance on earth due to its cheap capital cost and large-scale availability. Plastic waste is a mean to degrade our environment as it is also a source of many toxic gasses and is non-biodegradable. There must be some way to eliminate such a threat to our surroundings. The use of Low-density polyethylene such as bottles, polythene bags, and much more as a replacement in bitumen blend provides various benefits like an increase in resistance to deformation, increase in durability, strength, reduction in seepage, mitigating of pollution, and gainful for waste disposal.

Clayey soil is typically firm when they are evaporated and gave its firmness as it looks right on soaked. Delicate clays are related with little compressive strength and beyond preposterous arrangement. This decrease in strength because of dampness prompts serious harm to the structures and substructures. The nature of the soil can experiment with the originator fabricating foundation intent on clayey sediments. This paper is based on the study of the engineering properties of clayey soil. This experimental study depicts the basic attributes of the clayey soil; which further leads to improving the nature or engineering properties of the clayey soil for the subgrade of the flexible pavement. Different tests are to be performed in the laboratory and conduct the desired results.