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Accordingly, existing road levels at approaches of these structures are required to be raised making the existing pavement materials redundant. Annually a huge amount of new roads are overlaid on existing road pavement in which a layer of existing bitumen pavement is removed for road development purposes. Utilization of such waste as Reclaimed Asphalt Pavement to replace natural aggregates partially could be helpful both for environmental and economic aspects in the construction industry. Also disposal of waste materials including waste plastic bags has become a serious problem and waste plastics are burnt for apparent disposal which cause environmental pollution. Utilization of waste plastic in bituminous mixes has proved that these enhance the properties of mix in addition to solving disposal problems in various studies. The seasonal change in temperature and loading nature has a significant effect on asphalt behavior because of its viscoelastic nature. Several types of flexible pavement failure/distress occur due to this behavior of asphalt binder, among which rutting and fatigue cracks are very common. The present study is to assess the suitability of using these redundant pavement materials also called Reclaimed Asphalt Pavement (RAP) as potential subbase / base course materials for flexible pavement and perform various laboratory experiments to analyze its strength and durability factors and compare the results with the conventional bituminous mix The purpose of this article is to review global experience with RAP, identify common issues of implementation of this technology and develop methods to ensure a comprehensive approach to the use of RAP. Keywords— Waste Plastic, Reclaimed Asphalt Pavement (RAP), Bitumen, Flexible Pavement, Sustainable Construction.

international journal of recent trends in engineering and research

EXPERIMENTAL STUDY OF PARTIAL REPLACEMENT OF NATURAL AGGREGATES AND BITUMEN WITH RECLAIMED ASPHALT PAVEMENT AND WASTE PLASTIC IN FLEXIBLE PAVEMENT – A REVIEW