Utilization of Waste Plastics in Construction of Flexible Pavements(Reuse of waste plastics - a path - breaking initiative)

摘要

Plastics are user friendly but not eco-friendly as they are non-biodegradable,rnGenerally it is disposed by way of land filling or incineration of materials which arernhazardous. The better binding property of plastics in its molten state has helped inrnfinding out a method of safe disposal of waste plastics, by using them in road laying.rnThe aggregate is heated to around 170℃. To that the waste plastics (carry bags, cups &rnthermocole made out of Polyethylene, Polypropylene & Polystyrene) after processing, isrnadded. They get melted and coated over aggregate. Then the bitumen (160℃) is addedrnand the aggregate – polymer- bitumen mix is used for road laying. The mix has higherrnMarshall value, lower penetration value and resistance to water penetrationrnThe benefits are many - Helps in safe disposal of waste plastics by a eco-friendly way;rnimproved solid waste management; better environmental hygiene; reduction in thernconsumption of bitumen by 10%; No toxic emission; better road; withstand heavy load;rnNo pothole formation; value added to waste plastics; cost is less; mix used for Rural &rnHighways roads.rnThe plastics tar road has been already laid for 1500 km in India at different places likernState Capitals as well as rural roads. The performance of these roads is good. Even afterrn24 months.