plastic roads
TRANSCRIPT
![Page 1: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/1.jpg)
PLASTIC ROADS
![Page 2: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/2.jpg)
CONTENT
• Plastic Wastes used in construction of roads
• Process
• Advantages of plastic roads
• Disadvantages of plastic roads
• Conclusion
![Page 3: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/3.jpg)
Plastic Wastes used in construction of roads
• Films ( Carry Bags, Cups) thickness up to 60micron (PE, PP and PS)
• Hard foams (PS) any thickness
• Soft Foams (PE and PP) any thickness.
• Laminated Plastics thickness up to 60 micron (Aluminum coated also) packing materials used for biscuits, chocolates, etc.,
• Poly Vinyl Chloride (PVC) sheets or Flux sheets should not be used in any case.
![Page 4: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/4.jpg)
Process Step 1
Plastics waste (bags,cups,thermocole) made out of PE,PP and PS cut into a size between 2.36mm and 4.75mm using shredding machine, (PVC waste should be eliminated).
![Page 5: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/5.jpg)
Process Step 2
The aggregate mix is heated to 165°c (as per the HRS specification) and transferred to mixing chamber.
Simillarly the bitumen is to be heated upto a maximum of 160°c (HRS Specification) to have good binding and to preovent weak bonding. (Monitoring the temperature is very important).
![Page 6: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/6.jpg)
Process
At the mixing chamber, the shredded plastics waste is to be added. It get coated uniformly over the aggregate within 30 to 60 seconds, giving an oily look.
Step 3
![Page 7: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/7.jpg)
Process Step 4
The plastics waste coated aggregate is mixed with got bitumen and the resulted mix is used for road construction. The road laying temperature is between 110°c to 120°c. The roller used is 8-ton capacity.
![Page 8: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/8.jpg)
Advantages of plastic roads
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.
100% improvement in life of roads.
Reduced penetration and ductility, a higher softening point, less rutting and cold cracking.
Generate jobs for rag pickers.
![Page 9: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/9.jpg)
Disadvantages of plastic roads
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. As
the plastics will merely form a sticky layer, (mechanical abrasion).
The components of the road, once it has been laid, are not inert.
![Page 10: Plastic Roads](https://reader034.vdocuments.site/reader034/viewer/2022042518/554a5405b4c905572f8b4aa3/html5/thumbnails/10.jpg)
Conclusion
Plastic will increase the melting point of the bitumen .
use of the innovative technology not only strengthened the road construction but also increased the road life .
Help to improve the environment .