USE OF WASTE PLASTIC IN ROAD PAVEMENTS

For production of asphalt mix waste plastics both by domestic and industrial sectors can be used Waste plastics are mainly use for packaging are formed of by Polyethylene, Polypropylene and polystyrene. Their softening varies from 110-1400c and they can not produced any toxic gases at heating but the softened plastics going to formed a coat over the aggregates, when it is formed over the hot aggregate at 1600C. The Plastics Coated Aggregates (PCA) is a good raw material for the construction of flexible road pavement. PCA then mixed with hot bitumen of different types and the mixes were used for contruction of road pavement. PCA - Bitumen mix showed better binding and less wetting property. The higher Marshall Stability value in the range of 18-20KN and the load bearing capacity of the road is increased by 100% by sample. The roads are constructed since 2002 using PCA-Bitumen mixes are performing better.. A detailed study on the performances of these roads shows that the constructed with PCA –Bitumen mix are performing better. It is a eco-freindly and economical process.