plastic waste use in bitumen roa construction

2. 1 A.VENKATESH 15525A0102
2 G.SHYAMALA RAO 14521A0109
3 B.JYOTHSNA 14521A0101
4 K.RAJESH 15525A0119
5 R.BIOIN KUMAR 14521A0116
6 D.KIRAN KUMAR 14521A0107
Under the guidance of
sravanthi m-tech
VISWANADHA INSTITUTE OF TECHNOLOGY & MANAGEMENT

3.  Introduction
 Need of study
 Abstract
 Material used
 Literature survey
 Construction process
 Field trail
 Advantages of waste plastic bituminous mix
 Reference
 Conclusion
Contents

4. Introduction
• Disposal of waste plastic use a major problem .Is it non-
biodegradable
& 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 provide that waste plastic enhances the
property of the mix.
• Improvement in properties of bituminous mix provides the
solution for disposal in an useful way.

5. • Plastic roads mainly use plastic carry bags , disposable cups and
bottles that are collected from the garbage dumps as an important
ingredient of the construction material.
• When mixed with hot bitumen, plastic melt to form an oily coat
over the aggregate and mixture is laid on the road surface like a
normal tar road.

6. Need of study
• Disposal of waste plastic is major problem.
• low density polyethylene.
• To find the utility It is non-biodegradable.
• Burning the waste plastics bags causes environmental
pollution.

7. Abstract
The plastic wastes could be used in road construction and the
field tests withstood the stress and proved that plastic wastes
used after proper processing as an additive would enhance
the life of the roads and also solve environmental problems.
Plastic use in road construction is not new. Waste plastic is
ground and made into powder; 3 to 4 % plastic is mixed with
the bitumen. The durability of the roads laid out with
shredded plastic waste is much more compared with roads
with asphalt with the ordinary mix. The use of the innovative
technology not only strengthened the road construction but
also increased the road life as well as will help to improve the
environment and also creating a source of income.

8. Material used
Aggregate
• Aggregate of mm, 10mm.
• Stone dust and lime as filler
Bitumen
• 60/70/80/100 grade bitumen.
Waste plastic
• Waste plastic in the shredded form. Pvc not used.

9. 00
Literature survey
• Simpson et al. (1994) conducted a research on modified
bituminous mixtures using polypropylene, polyester fibers
and polymers. Two blends of modified binder were
evaluated. An unmodified mixture was used as a control
sample. Mixtures containing polypropylene fibers were
found to have higher tensile strength and resistance to
cracking than the others.
• Studies by Brown et al. (1990), showed that some fibers
have high tensile strength relative to bituminous
mixtures, thus it was found that fibers have the potential
to improve the cohesive and tensile strength of
bituminous mixes.

10. • Studies by Brown et al. (1990), showed that some fibers
have high tensile strength relative to bituminous mixtures,
thus it was found that fibers have the potential to improve
the cohesive and tensile strength of bituminous mixes.

11. Construction process
Step 1
Plastic waste bags, cups, bottles made out of PE,PP and PS cut
into a size between 4.75mm sieve into 2.36mm retain sample
in collected.

14. There are two types of field trials
1. DRY PROCESS
2. WET PROCESS
1. DRY PROCESS
 The aggregated is heated to 170 c in the mini hot mix plant.
 Heated aggregates
 The shredded plastic waste is added in equal portion.
 Adding shredded plastic.
2. WET PROCESS
 Waste plastic by direct mixing with hot bitumen at 160 c.
 Mechanical stirrer is needed.
 Additional of stabilizers and proper cooling.
 Since the wet process require a lot investment and bigger plant.
 Not commonly used.
Field trials

15. Advantages of waste plastic bituminous mix
 Better resistance towards rain water and water stagnation.
 No stripping and no potholes.
 Increase binding and better bonding of the mix.
 Reducing in pores in aggregate and hence less rutting and
reveling.
 No leaching of plastics.
 No effect of radiation like UV.
 Strong road with increased marshall stability value.

16. References
Appea, A. K., Al-Qadi, I. L., Bhutta, S. A., and Coree, B. J., “Quantitative
Assessment of Transmission Layer in Flexible Pavements,” 77th Transportation
Research Board, Paper No. 980994, Washington, DC, 1998.
IRC, “Guidelines for the Design of flexible pavements,” IRC: 37-1970, Indian
Roads Congress.
Battiato, G., and Verga, C., “The AGIP Visco elastic Method For Asphalt
Pavement Design,” Proceedings Of The Fifth International Conference On The
Structural Design Of Asphalt Pavements, Ba Arnhem; Netherlands, August 23-26
1982, pp. 59-66.
Barksdale, R. D., Brown, S. F., and Francis, C., “Potential Benefits of
Geosynthetics in Flexible Pavement Systems,” National Cooperative Highway
Research Program, Report No. 315, Transportation Research Board,
Washington, D. C. 1989.
ISI, “Indian Standards Specifications for Roads Tar”, IS: 215, Indian standard
Institution.
IRC, “Tentative Specifications for Bituminous Surface dressing Using Pre-coated
Aggregates,” IRC: 48-1972, Indian Roads Congress

17. 1Conclusion
Polymer Modified Bitumen is used due to its better performance. But
in the case of higher percentage of polymer bitumen blend, the blend
is a more polymer dispersion in bitumen, which get separated on
cooling.
In the modified process (dry process) plastics-waste is coated over aggregate.
This helps to have better binding of bitumen with the plastic-waste coated
aggregate due to increased bonding and increased area of contact between
polymer and bitumen. The polymer coating also reduces the voids.