International Journal of Civil and Structural Engineering Research ISSN 2348-7607 (Online) Vol. 7, Issue 1, pp: (90-94), Month: April 2019 - September 2019, Available at: www.researchpublish.com
USE OF PLASTIC WASTE IN ROAD CONSTRUCTION Nidhi Agrawal1, Nilesh Agrawal2 Lecturer IT Korba1, Student IT Korba2 Institute of Technology, Korba
Abstract: Plastic which is toxic in nature is found to be nearly 5% in Municipal Solid Waste (MSW). The waste plastic and its disposal is a major threat to the environment, which results in pollution and global warming. The utilization of plastic waste in bituminous mixes enhances its properties and also its strength1. In addition it will also be a solution to plastic disposal & various defects in pavement viz., pot holes, corrugation, ruts, etc. the waste plastic used are poly-ethylene, poly-styrene, poly-propylene. The waste plastic is shredded & coated over aggregate & mixed with hot bitumen and resulted mix is used for pavement construction. This provides a solution to the problem of effective disposal of plastic waste at the same time increases the strength and durability of the road, addresses the environmental, economic and most importantly safety issue. Keywords: Plastic waste, Bitumen, incineration, segregation, absorption, marshal value, non biodegradable, polymer, land filling, dry process, et process.
I. INTRODUCTION Plastic is everywhere in today s lifestyle. The main problem is what to do with the plastic waste. Use of plastic waste which is non biodegradable is rapidly growing and researchers have found that the material can remain on earth for 4500 years unchanged and without degradation. This threat of disposal of plastic will not solve itself and certain practical steps have to be initiated at the ground level. On the other hand the road traffic is increasing with time hence there arises a need to increase the load bearing capacities of roads[1]. The various experiments have been carried out whether the waste plastic can be reused productively. The various literature indicated that the waste plastic when added to hot aggregates will form a fine coat of plastic over the aggregate and such aggregates when mixed with binder is found to have higher strength, higher resistance and better performance over a period of time. Along with bitumen, use waste plastic increases its life and smoothness. It is economical and eco-friendly. Addition of plastic waste in construction of pavements reduces the plastic shrinkage and drying shrinkage. The use of waste plastic improves the abrasion & slip resistance of asphalt pavement.[2]
II. PROBLEMS WITH DISPOSAL OF PLASTIC WASTE Disposal of plastic waste has emerged as an important environmental challenge and its recycling is facing roadblocks due to non-degradable nature. Because plastic does not decompose biologically, the amount of plastic waste in our surroundings is steadily increasing. Plastic waste is often the most objectionable kind of litter and will be visible for months in landfill sites without degrading.
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