POTENTIAL REUSE OF PLASTIC WASTE IN ROAD CONSTRUCTION: A REVIEW Prof. Kiran Bhoot 1 , Kapil Malviya 2 , Thanvendra K Prajapat 3 1 Associate Professor, Department of Civil Engineering, JIET Group of Institutions, Jodhpur 2,3 B.Tech. IV year, Department of Civil Engineering, JIET Group of Institutions, Jodhpur ABSTRACT Plastic is widely used in our day to day life. It is common site in both urban and rural areas to find empty plastic bags and other type of plastic packing material littering the roads as well as drains. As Plastic is non-biodegradable, harmful chemical, causes ocean pollution and so many. As per a study by the Central Pollution Control Board, 60 large cities in India generate over 15,000 tonne of plastic waste every day. In an observation earlier this year, the Supreme Court had said that the country is sitting on a plastic time bomb. Natural materials use in road construction being exhaustible in nature, its quantity is declining gradually while use of Plastic in Roads are found to perform better compared to those constructed with conventional bitumen. If these materials can be suitably utilized in highway road construction, the pollution and disposal problems may be partly reduced. Further it has been found that such roads were not subjected to stripping when come in contact with water. Also, cost of extracting good quality of natural material is increasing. On heating at 100-160°C, plastics such as polyethylene, polypropylene and polystyrene, soften and exhibit good binding properties. Blending of the softened plastic with bitumen results in a mixed that is good for road laying. The process is easy and does not need any new machinery. Plastic increases the aggregate impact value and improves the quality of flexible pavements and also wear and tear of the roads has decreased to a large extent. KEYWORDS: Plastic waste, Impact Value, Flexible pavement. INTRODUCTION Plastic is a polymeric material—that is, a material whose molecules are very large, often resembling long chains made up of a seemingly endless series of interconnected links. Natural polymers such as rubber and silk exist in abundance, but nature’s “plastics” have not been implicated in environmental pollution, because they do not persist in the environment. Today, however, the average consumer comes into daily contact with all kinds of man-made plastic materials that have been developed specifically to defeat natural decay processes. Materials derived mainly from petroleum that can be molded, cast, spun, or applied as a coating. Since synthetic plastics are largely non-biodegradable, they tend to persist in natural environments. Moreover, many lightweight, single-use plastic products and packaging materials, which account for approximately 50 percent of all plastics produced, are not deposited in containers for subsequent removal to landfills, recycling centers, or incinerators. Instead, they are improperly disposed of at or near the location where they end their usefulness to the consumer. Dropped on the ground, thrown out of a car window, heaped onto International Journal of Scientific Research in Engineering IJSRE October, Vol-1 Issue-9 www.ijsre.in Page 1
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POTENTIAL REUSE OF PLASTIC WASTE IN ROAD
CONSTRUCTION: A REVIEW
Prof. Kiran Bhoot1, Kapil Malviya
2, Thanvendra K Prajapat
3
1Associate Professor, Department of Civil Engineering, JIET Group of Institutions, Jodhpur 2,3B.Tech. IV year, Department of Civil Engineering, JIET Group of Institutions, Jodhpur
ABSTRACT
Plastic is widely used in our day to day life. It is common site in both urban and rural areas to
find empty plastic bags and other type of plastic packing material littering the roads as well as
drains. As Plastic is non-biodegradable, harmful chemical, causes ocean pollution and so
many. As per a study by the Central Pollution Control Board, 60 large cities in India generate
over 15,000 tonne of plastic waste every day. In an observation earlier this year, the Supreme
Court had said that the country is sitting on a plastic time bomb.
Natural materials use in road construction being exhaustible in nature, its quantity is
declining gradually while use of Plastic in Roads are found to perform better compared to
those constructed with conventional bitumen. If these materials can be suitably utilized in
highway road construction, the pollution and disposal problems may be partly reduced.
Further it has been found that such roads were not subjected to stripping when come in
contact with water. Also, cost of extracting good quality of natural material is increasing. On
heating at 100-160°C, plastics such as polyethylene, polypropylene and polystyrene, soften
and exhibit good binding properties. Blending of the softened plastic with bitumen results in
a mixed that is good for road laying. The process is easy and does not need any new
machinery. Plastic increases the aggregate impact value and improves the quality of flexible
pavements and also wear and tear of the roads has decreased to a large extent.