Plastic road gor Seminar Topics in 20224

Plastic Road

1. CONTENTS Introduction. What are plastic roads? Field trials Comparison between ordinary road and plastic road Advantages of plastic roads Disadvantages of plastic roads Conclusion

2. INTRODUCTION Disposal of waste plastic is a major problem. It is nonbiodegradable and it mainly consists of low density polyethylene. Burning of these waste plastic bags causes environmental pollution. To find its utility in bituminous mixes for road construction,laboratory performance studies were conducted on bituminous mixes. Laboratory studies proved that waste plastic enhances the property of the mix.

3. Plastic roads mainly use plastic carry bags, disposable cups and bottles that are collected from garbage dumps as an important ingredient of the construction material. Improvement in properties of bituminous mix provides the solution for disposal in an useful way. When mixed with hot bitumen, plastics melt to form an oily coat over the aggregate and the mixture is laid on the road surface like a normal tar road.

4. WHAT ARE WASTE PLASTIC ROADS ? The roads constructed using waste plastic,popularly known as plastic roads, are found to perform better compared to these constructed with conventional bitumen.

5. WHY PLASTIC ? Resistance to water, wear and tear Durability Available at low cost Disposal issues Environmental and ecological issues Properties enhanced.

6. HOW TO USE ? 1. SEGREGATION: Plastic waste collected from various sources must be separated from other waste. Maximum thickness of 60 microns.

7. 2. CLEANING PROCESS Plastic waste get cleaned and dried.

8. 3. SHREDDING PROCESS Different types of plastic wastes are mixed together and plastics gets shredded or cut into small piece.

9. Then plastic waste retaining in 2.36 mm is collected. COLLECTING PROCESS

10. FIELD TRIALS Dry process Wet process

11. WASTE PLASTIC MIXED WITH THE HOT AGGREGATE

12. BITUMEN IS ADDED WITH PLASTIC COATED AGGREGATE This Photo by Unknown Author is licensed under CC BY

13. ROAD LAYING

14. WET PROCESS Waste plastics by directly mixing with hot bitumen at 160 C. Mechanical stirrer is needed. Addition of stabilizers and proper cooling. Since the wet process require a lot of investment and biggerplants . Not commonly used.

15. PLASTIC ROAD The tensile strength is high Less durability Life span is up to 10 years penitration of rain water is less Wear and tear is less Plastic road are hollow and less weight. Construction cost is high while maintenance cost is less BITUMEN ROAD The tensile strength is less More durable Life span is 4 to 5 years penitration of rain water is more Wear and tear is high Bitumen road is heavy and solid Construction cost is less while maintenance cost is high

16. ADVANTAGES Better resistance towards rain water and water stagnation. No stripping and no potholes. The strength of the road is increased by 100%. The cost of road construction is also decreased. The maintenance cost of road is almost nil. Use higher percentage of plastic reduces the disposal problem of waste plastic. Reduce the need of bitumen by around 10%.

17. DISADVANTAGES Cleaning process: Toxics present in the co-mingled plasticwaste would start leaching. During the road laying process: In the presence of chlorinewill definitely release HCL gas. After the road laying: It is opined that the first rain willtrigger leaching. as the plastic will merely from a sticky layer,(mechanical abrasion).

18. PLASTIC ROADS IN KERALA Here are some notable facts about plastic roads in Kerala:- In 2017, Kerala began a project to use non-recyclable plastic waste to construct roads. Kerala's public works department has used over 1,579.59 metric tonnes of shredded plastic to tar roads across the state. The state government has set up a system for door-to-door collection and segregation of plastic waste.

19. Shredded plastic is sold to the public works department at 20 Indian rupees per kilogram. The plastic road project has been implemented on over 15,000 kilometers of roads, including state highways and major district roads. Kerala uses 9,700 tonnes of plastic waste to pave 246 kilometers of roads.

20. CONCLUSION Use of innovative technology not only strengthened the road construction but also increased the road life. Help to improve the environment. Plastic road would be a boon for India's hot and extremely humid climate where durable and eco-friendly roads which will relive the earth from all type of plastic waste.