Waste Plastic use in Bituminous Pavement

Now days, the population growth, industrialization, consumerism and technological development have led to uncontrollable accumulation of waste Proper waste disposal is of great importance in both rural and urban areas. Many of the wastes produced today will remain in the environment for many years leading to various environmental concerns Plastic which is toxic in nature is found to be nearly 5% in Municipal Solid Waste (MSW) A major problem nowadays is the disposal of plastic wastes. These wastes are non biodegradable in nature causing environmental pollution and hygiene problems. The experimentation at several institutes indicated that waste plastic can be utilized in Asphalting of roads The use of these wastes in road construction is based on Economic, Technical and Ecological criteria. Taking an example of INDIA (Authors native land) several million metric tons plastic wastes are produced every year. However disposal of waste plastic (WP) in large quantities constitutes an environmental problem, as they considered non-biodegradable materials. Hence, there is a real need to find useful applications for these growing quantities of wastes. Therefore it is necessary to utilize the wastes effectively with technical development in cache field. If these wastes can be suitably utilized in road construction, the disposal and pollution problems can be minimized to a large extent Once the plastic waste is separated from municipal solid waste, the organic matter can be converted into manure and used. In road making process bitumen is used as binder The bitumen can be modified with plastic waste pieces forming a mix which can be used as a top layer of flexible pavement, showing better binding property, stability, density and which is more resistant to water. In this study bitumen and aggregates are coated with various percentage of waste plastic (0%, 4%, 8%, and 12 %) replacement. And various laboratory tests are done on these samples It has been observed that, the optimum replacement of waste plastic to bitumen without changing the properties is 12%.