PLASTIC MODIFIED BITUMEN

ROADS

PRESENTED BY:

BIKASH MUDULI

DEPT. CIVIL ENGG

RAAJDHANI ENGINEERING

COLLEGE

GUIDED BY:

MR.MADAN MOHAN MOHAPATRA

HOD. CIVIL DEPARTMENT

RAAJDHANI ENGINEERING COLLEGE

CONTENTS

WHAT IS PLASTIC ?

TYPES OF PLASTIC ?

STEPS FOR USING PLASTIC IN ROADS

ON SITE EXECUTION

ADVANTAGES AND DISADVANTAGES OF PLASTIC ROADS

CONCLUSION

WHAT IS PLASTIC

A PLASTIC MATERIAL IS ANY OF A WIDE RANGE OF SYNTHETIC OR SEMI-

SYNTHETIC ORGANIC SOLIDS THAT ARE MALLEABLE.

THEY ARE USUALLY SYNTHETIC, MOST COMMONLY DERIVED FROM

PETROCHEMICALS.

TYPES OF PLASTICS

ELASTOMERS THERMOSETS THERMOPLASTICS

STEPS FOR USING PLASTIC IN ROADS

SEGREGATION

CLEANING PROCESS

SHREDDING PROCESS

COLLECTION PROCESS

SEGREGATIO

N

PLASTIC WASTE COLLECTED FROM VARIOUS SOURCES MUST BE SEPARATED

FROM OTHER WASTE.

MAXIMUM THICKNESS OF 60 MICRONS.

CLEANING PROCESS

PLASTIC WASTE GET CLEANED AND DRIED.

SHREDDING PROCESS

PLASTICS WILL BE SHREDDED OR CUT INTO SMALL PIECES.

THE DIFFERENT TYPES OF PLASTIC WASTES ARE MIXED TOGETHER.

COLLECTION PROCESS

THE PLASTIC WASTE REMAINING IN 1.5 TO 2 mm ARE COLLECTED AT ONE PLACE.

ON SITE EXECUTION

THERE ARE TWO TYPES OF EXECUTION PROCESS OF PLASTICS.

• WET PROCESS

• DRY PROCESS

WET PROCESS

BLENDING OF WASTE PLASTICS BY DIRECT MIXING OF SHREDDED PLASTICS WITH HOT BITUMEN AT 160°C.

MECHANICAL STIRRER IS NEEDED AS THE MIXING IS DIFFICULT BECAUSE OF DIFFERENCE IN VISCOSITIES OF MOLTEN POLYMER AND BITUMEN.

ADDITION OF STABILIZERS AND PROPER COOLING ARE REQUIRED.

SINCE THE WET PROCESS REQUIRE A LOT OF INVESTMENT AND BIGGER PLANTS.

NOT COMMONLY USED.

DRY

PROCES

S

THIS PROCESS IS DEVELOPED BY

prof. R.VASUDEVAN.

HE IS THE DEAN OF DEPT. OF CHEMISTRY IN

THIAGARAJAR COLLEGE OF

ENGINEERING.

THE AGGREGATE IS HEATED UP TO 170°C IN THE MINI HOT MIX PLANT.

MINI HOT MIX PLANTAGGREGATE TRANSFERRED TO

PUDDLING CHAMBER

THE SHREDDED PLASTICS IS ADDED TO THE HOT AGGREGATE IN EQUAL

PROPORTION.

WASTE PLASTICS MIXED WITH THE HOT AGGREGATES

THIS PLASTIC GET COATED OVER THE AGGREGATE UNIFORMLY.

COATED AGGREGATE PLAIN AGGREGATE

IMMIDIATELY THE HOT BITUMEN WITH 160°C IS ADDED WITH THE MIXTURE.

BEFORE BITUMEN MIXBITUMEN IS ADDED WITH

COATED AGGREGATE

THE MIXTURE IS TRANSFERRED TO THE ROAD AND THE ROAD IS LAID.

Road is being laid

CHARACTERISTIC OF PLASTIC COATED

AGGREGATE

LOS ANGEL’S ABRASION TEST –

WEAR AND TEAR VALUES OF PLASTIC COATED AGGREGATE IF FOUND

TO BE DECREASING WHILE USING PLASTICS.

EG. 37% WITHOUT PLASTIC, 32% WITH 1% PLASTIC, 29% WITH 2%

PLASTIC.

SOUNDNESS TEST-

THE PLASTIC COATED AGGREGATE, DID NOT SHOW ANY WEIGHT

LOSS, HENCE IMPROVE THE QUALITY OF THE AGGREGATE.

Aggregate Impact Value

Plastics Improves Aggregate Impact Value.

Helps To Improve The Quality Of Flexible Pavement

Aggregate impact value

% of plastic coating over

aggregate

Compressive strength

(MPa)

Bending strength

(MPa)

10% 250 325

20% 270 335

30% 290 350

40% 320 390

BINDING PROPERTY

ADVANTAGES OF PLASTIC ROAD

SIMPLE PROCESS, NO NEW MECHINARY IS REQUIRED.

USE HIGHER PERCENTAGE OF PLASTIC WASTE.

REDUSE THE NEED OF THE BITUMEN BY AROUND 10%.

INCREASE THE STRENGTH AND PERFORMANCE OF THE ROAD.

REDUSE THE COST AROUND Rs.5000/KM OF SINGLE LANE ROAD.

GENERATE JOBS FOR RAG PICKERS.

UP TO 10,00,000 CARRY BAGS DISSAPEARED IN ONLY 10Mtr.

NO POT HOLES.

DISADVANTAGES

TOXICS PRESENT IN THE PLASTICS WOULD START LEACHING AFTER SOME

YEARS.

ONCE THE ROAD STARTED TO USE,IT WILL REALESE THE FINE PARTCELS OF

POLYMER.

Bangalore

BANGALORE MYSORE ROAD

PLASTIC ROAD IN KARNATAKA PLASTIC ROAD IN

THAMBARAM

CONCLUSION PLASTIC WILL INCREASE THE ADHESSIVE

NATURE OF THE BITUMEN.

NOT ONLY STRENGTHEND THE ROAD BUT

ALSO THE ROAD LIFE.

ECONOMICAL.

INCREASED DURABILITY.

ECO-FRIENDLY.