USE OF PLASTIC WASTE IN ROAD CONSTRUCTION.pptx

8/10/2019 USE OF PLASTIC WASTE IN ROAD CONSTRUCTION.pptx

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GUIDED BYDR A.K. NAYAKPRESENTED BY

SUBHASHREE TRIPATHY

ROLL NO-12020001BRANCH-CIVIL


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WHAT ARE PLASTIC ROADS????The roads constructed using waste plastic, popularly

known

as Plastic Roads,are found to perform bettercompared

to those constructed with conventional bitumen


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WHY WE NEED IT ???1)Disposal of waste plastic is a major problem.

2)It is non-biodegradable.3)Because the recycled plastic is more dangerous than the originalTo dispose.

.


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4)Burning of these waste plastic bags causesenvironmental pollution.

5)studies proved that waste plastic enhances theproperty of the mix.


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BASIC PROCESSES1. Segregation .

2. Cleaning process .

3. Shredding process .

4. Collection process


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1.SEGREGATIONplastic waste collected from various sources must

be separated from other waste.Maximum thickness of 60 microns.

SEGREGATION PROCESS


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2 cleaning process Plastic waste get cleaned and dried.

cleaning process


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3 Shredding processwill be shredded or cut into small piece.

the different types of plastic wastes are mixedtogether

shredding process


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4 Collection process the plastic waste retaining in 2.36 mm is collected.

collected plastic


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On site executionThere are two type of execution

1. WET PROCESS

2. DRY PROCESS


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WET PROCESS Blending of waste plastics by direct mixing

of shredded plastics with hot bitumen at 160C

Mechanical stirrer is needed as the mixing is

difficult because of difference in viscosities ofmolten polymer and bitumen.

Addition of stabilizers and proper cooling arerequired.

Since the wet process require a lot of investmentand bigger plants

Not commonly used..


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Dry Process

This process is developed by Dr. Vasudevan. The aggregate is heated to 170C in the Mini hot Mix

Plant .

MINI HOT MIX PLANT

Th h dd d l i i


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The shredded plastic waste is

added in equal proportion.

WASTE PLASTICS MIXED WITH THE

HOT AGGREGATES


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This plastics gets coated over the

aggregate uniformly.

THEN THE BITUMEN IS ADDED IN THE


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THEN THE BITUMEN IS ADDED IN THE

MIXTURE AT A TEMPERATURE AROUND

155-163C


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The mixture is transferred to the

road and the road is laid.

Road is being laid


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COMPARISON BETWEEN ORDINARY BITUMINOUS ROADS AND WASTE PLASTIC BITUMINOUS

ROADS:-

S.No. Properties Plastic Road Ordinary Road

1. MARSHALL STABILITY VALUE MORE LESS

2. BINDING PROPERTY BETTER GOOD

3. DURABILITY OF ROADS BETTER GOOD

4. COST OF PAVEMENT LESS MORE

5. TENSILE STRENGTH HIGH LESS

6. MAINTENANCE COST ALMOST NILL LESS

7. STRIPPING(POT HOLES) NO MORE

8. ENVIRONMENT FRIENDLY YES NO


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ADVANTAGES OF PLASTIC ROAD1) The strength of the road is increased .

2) The load withstanding property increases. It helpsto satisfy todays need of increased road transport.

3) For 1km road, 1 ton of plastic (10 lakh carry bags) isused and 1 ton of bitumen is saved.

4)Value of waste plastics is increased.(cost perkilogram increases from Rs 4 to Rs12).

5) The cost of road construction is also decreased.


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ADVANTAGES OF PLASTIC ROAD 6) Reduce the cost to around Rs. 5000/Km. of single

lane road.

7)Generate jobs for rag pickers.

8) The maintenance cost of road is almost nil.

9)Disposal of waste plastic will no longer be a problem.

10) The use of waste plastics on the road has helped to

provide better place for burying the plastic waste withoutcausing disposal problem.


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DISADVANTAGES OF PLASTIC ROAD

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 releasenoxious

HCL gas.

3.After the road laying -:It is opinioned that the first rain will triggerleaching.

As the plastics will merely form a sticky layer.

WASTE PLASTIC ROADS


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WASTE PLASTIC ROADS

CONSTRUCTED:- The Bruhat Bengaluru Mahanagara Palike (BBMP) has used plastic on

about 600 km of roads, including many thoroughfares and arterialroads.

It uses the plastic blend in at least 25% of the road-laying works,including the present project to upgrade about 45 roads in the city.

The plastic model was successful on major roads in Bangalore,including -:

Shankar Mutt Road, K H Road, M G Road (towards Trinity Circle), J C Nagar Road , Miller's Road and Cunningham Road,

inner ring road, Rajarajeshwari Junction, Mysore Bangalore state highway.

Puttanna Chetty Town Hall


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CONCLUSION:-

Evidence of Better Performance of thePlastic Roads-:The performance studies carried out on the roads

constructed in Tamil Nadu indicated satisfactoryperformance with good skid resistance, goodtexture value, stronger and less amount ofprogressive unevenness over a period of time.

The experimentation carried out by CRRI alsoindicated better stability value, indicating higherstrength, less flow and more air voids.


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The use of the innovative technology not onlystrengthened the road construction but also

increased the road life as well as will help to improvethe environment and also creating a source ofincome.

It is hoped that in near future we will have strong,

durable and eco-friendly roads which will relieve theearth from all type of plastic-waste .

Hence the use of waste plastics for pavement is one ofthe best methods for easy disposal of waste plastics.


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QUESTION?????

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USE OF PLASTIC WASTE IN ROAD CONSTRUCTION.pptx