Waste plastic utilization in pavements and its mixture with bitumen

1. UTILIZATION OF PLASTIC WASTE IN
FLEXIBLE PAVEMENTS

3. INTRODUCTION
Today the availability of waste plastic is
enormous, as the plastic materials has become
parcel of daily life. The present disposal of plastic is
either by land filling or Incineration. Both the
process have certain impact on environment.
In the construction of flexible pavements,
bitumen plays the role of binding the aggregate
together by coating over the aggregate it also helps
to improve the strength of road. But its resistance
towards water is poor.
In order to overcome this problem a common
method to improve the quality of bitumen by
modifying the rheological properties of bitumen by
blending with waste plastic.

4. WHY WE USE PLASTIC
Plastic Consumption(Tons) in India
Cost of plastic(segregation,cleaning,shredding) is
Rs 10 per kg and cost of bitumen is Rs 30 per kg.
We replace 4-8% of plastic by weight of bitumen,
which requires 0.4-0.8 tons of plastic per km.

5. REVIEW OF LITERATURE
 Ms.Apurva Chavan (2013) says that “ using plastic
waste will help reduction in need of bitumen by
around 10%,increase the strength and performance
of road”.
 Mrs.Vidula swami (2012) says that “the addition of
plastic increases the hardness of the bitumen”.

6. MATERIALS USED
AGGREGATE :
Aggregate of 20mm, 10 mm.
BITUMEN:
60/70, 80/100 grade bitumen
WASTE PLASTIC:
Waste plastic in the shredded form, passing through 4.75mm
IS Sieve, retaining on 2.36mm sieve

7. METHODOLOGY

8. MIXING PROCESS
• In this process the aggregates are
heated to 170 C and shredded plastic
waste is added in proportion by weight to
the hot agggregate.this plastic gets
coated over the aggregate uniformly.
Immediately the hot bitumen 160 C is
added with the mixture.
Dry
process
• In this process blending of waste
plastics by direct mixing of shredded
plastics with hot bitumen at 160C is
done. mechanical stirrer is needed as
the mixing is difficult because of
differences in viscosities of molten
polymer and bitumen.
Wet
process

9. TESTS ON AGGREGATES
• Impact testing machine
• IS:2386 (part IV)-1963Aggregate impact test
• Los angles abrasion testing machine
• IS:2386 (part IV)-1963Abrasion value
• Crushing value apparatus
• IS:2386(Part IV)-1963Crushing value
• Flakiness gauge
• IS:2386(Part I-1963)Flakiness index
• Elongation gauge
• IS :2386(Part I -1963)Elongation index
• Pycnometer apparatus
• IS :2386(Part IV-1963)Specific gravity

10. TESTS ON BITUMEN
• Standard penetrometer
• IS:1203-1978Penetration test
• Ring ball apparatus
• IS:1205-1978
Softening point
test
• Crushing value apparatus
• IS:2386(Part IV)-1963Crushing value
• Ductility apparatus
• IS:1203-1978Ductility test
• Pensky - martens apparatus
• IS :1209-1978
Flash and fire
point

11. AGGREGATE –BITUMEN-PLASTIC TESTS
• Marshall test apparatus
• IRC SP 53-1999 And
ASTM D 1559-1979
Marshall
stability test
• Universal testing
machine
• ASTM D 1074-09
Compressive
strength test
• Universal testing
machine
• ASTM D 6981
Indirect tensile
strength test

12. PLAN OF WORK
Aggreate
(%)
Bitumen
(%)
Plastic
(%)
Marshall
stability
value
Compressive
strength
value
100 100 0
Indirect Tensile
Strength value
100 96 4
100 95 5
100 94 6
100 93 7
100 92 8

13.  Strength of the road is increased
 Better resistant to water and water stagnation.
 Increases binding and better bonding of the mix.
 Better soundness property.
 Maintenance cost of the road is almost nil.
 No effect of radiation like UV.
ADVANTAGES

14. REFERENCES
 V. S. Punish and A. Veeraraghavan, Laboratory Fatigue Studies on
Bituminous Concrete Mixed Utilizing Waster Shredded Plastic Modifier,
Proceedings of 21st ARRB Transport Research (ARRB) & 11th Road
Engineering Association and Australia Conference, Claims, Australia (2003)
pp. 19-23.
 S. S. Varma, Roads from Plastic Waste, The Indian Concrete J. (2008) pp.
43-44.
 R. Vasudevan, Utilization of Waste Plastics for Flexible Pavement, Indian
High Ways (Indian Road Congress), 34 (2006) p. 4.
 N. R. R. D. A., Ministry of Rural Development, GOI, Guidelines for use of
Plastic Waste in Rural Road Construction (2007).
 C. S. Bindu, Int. J. Engg. & Technol., 2(6), 379-387 (2010).
 Indicative Operational Guidelines on Construction Polymer-Bitumen Road,
Central Pollution Control Board, Ministry of Environment and Forests,
Probes/101/2005-2006.
 Handbook for PWD Engineers (Building & Road construction), Public
Works Department, Mumbai (2002).