This document discusses the process of creating plastic roads using waste plastic as an ingredient in road construction material. When mixed with hot bitumen, plastics melt to form a coating over aggregate. There are two main methods - the dry process where shredded plastic is added to heated aggregate and bitumen, and the wet process which directly mixes plastic with hot bitumen. Benefits include using waste plastic, reducing bitumen needs, and increasing road strength and lifespan. However, there are also concerns about toxins leaching from the plastic during the cleaning, laying, and use of the roads.

1. PLASTIC ROADS
A Longlastingroadfromwaste plastic for a
better andgreenworld….

2. Introduction
What is plastic ??
Basic process
Methods
Merits
De-Merits
Conclusion

3. INTRODUCTION
• Plastic roads mainly use plastic carry-bags,
disposable cups and PET bottles that are
collected from garbage dumps as an
important ingredient of the construction
material.
• 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 bitumen road.

4. WHAT IS PLASTIC ?
• A plastic material is any of a wide range of
synthetic or semi-synthetic organic amorphous
solids used in the manufacture of industrial
products.
• Plastics are typically polymers of high
molecular mass and may contain other
substances to improve performance and
reduce costs.
• Monomers of plastic are either natural or
synthetic organic compounds

5. BASIC PROCESS
1. Segregation.
2. Cleaning process.
3. Shredding process.
4. Collection process .

6. SEGREGATION
Plastic waste collected from various sources
must be separated from other waste
Maximum thickness of 60 microns.

7. CLEANING PROCESS
• Plastic waste get cleaned & dried

8. SHREDDING PROCESS
• The plastic waste will be shredded or cut into
small piece.
• The different types of plastic wastes are mixed
together

9. COLLECTION PROCESS
• The plastic waste retaining in 2.36 mm is
collected.

10. METHODS OF LAYING OF
PLASTIC ROADS
1.DRY PROCESS
2.WET PROCESS

11. DRY PROCESS
• The aggregate is heated to 170 ° C in the
Mini hot Mix Plant .
• The shredded plastic will be added in equal
proportions
• Immediately the hot Bitumen 60/70 or 80
/100 grade (160°C) is added.
• The mixture is transferred to the road and the
road is laid.

12. DRY PROCESS

13. WET PROCESS
• Waste plastics by direct 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 bigger plants .
• Not commonly used..

14. MERITS
• Use higher percentage of plastic waste.
• Reduce the need of bitumen by around 10%.
• Increase the strength and performance of the road.
• Reduce the cost to around Rs. 5000/Km. of single lane
road.
• Generate jobs for rag pickers. Develop a technology,
which is eco-friendly .
• 100% improvement in fatigue life of roads.
• Reduced penetration and ductility, a higher softening
point, less rutting and cold cracking

15. DE-MERITS
• 1. Cleaning process Toxics present in the
co-mingled plastic waste would start leaching .
• 2. During the road laying process In the
presence of chlorine will definitely release
noxious HCL gas
• 3.After the road laying It is opined that the
first rain will trigger leaching.

16. CONCLUSION

17. THANK YOU
HARINATH REDDY.P
PLASTIC ROADS