paper prasentation

7/28/2019 Paper Prasentation

1/3

Title of the paper: Overview of Waste Plastic and Crumb Rubber Used in Bituminous Concrete Mix

Author Name : Mr. Chirag B. Patel

M.E. Civil (Transportation) Engineering

Parul Institute of Engineering & Technology

P.O. Limda, Ta. Waghodia,

Vadodara -391760

Address : 19-Gitanjali Society,

Near Dudh Sagar Dairy,

Mehsana-Unjha Highway,

Mehsana-384002

(M) +91 7567647301

Email : [email protected]

Guided By: Prof. S.M.Damodariya

Reader in Civil Engineering Department,

Parul Institute of Engineering & TechnologyP.O. Limda, Ta. Waghodia,

Vadodara -391760


2/3

OVERVIEW OF WASTE PLASTIC AND

CRUMB RUBBER USED IN BITUMINOUS

CONCRETE MIX

Mr. Chirag B. Patel1, Prof. S.M.Damodariya21M.E. Student, Transportation Engineering, Parul Institute of Engineering and Technology, Waghodia.(M)7567647301

2Reader, Civil Engineering Dept., Parul College of Engineering & Technology, Waghodia. (M) 9879345303.1pat el . chi g@gmai l . com

2smdamodar i ya@yahoo. com

Abstract- Now-a-days disposal of different wastesproduced from different Industries is a greatproblem. These materials pose environmentalpollution in the nearby locality because many ofthem are non-biodegradable. In India, it isestimated that over 33 lakh kilometers of roadexists. The road transport carries close to 90% ofpassenger traffic and 70% of freight transport.Investigations in India and countries abroad haverevealed that properties of bitumen andbituminous mixes can be improved to meetrequirements of pavement with the incorporationof certain additives or blend of additives. These

additives are called Bitumen Modifiers and thebitumen premixed with these modifiers is knownas modified bitumen. Modified bitumen isexpected to give higher life of surfacing (up to100%) depending upon degree of modification andtype of additives and modification process used.Different types of modifiers used are Polymers,Natural Rubber and Crumb Rubber.

Key words- waste plastic, crumb rubber, utilization,rheological properties, stability

1. INTRODUCTION

Increased number of traffic loads with overloading ofaxles in excess of permissible limits & higher tyrepressure have caused widespread problems withbituminous roads on national highways & available60/70 & 80/100 grade bitumen is not suitable forexpress way, heavy duty roads in industrial complex ,ports & airfield pavement. The accelerateddeterioration of bituminous surfacing prematurelyburdens the maintenance budget & poses fundsconstraints on new developments.Plastics are user friendly but not eco-friendly as theyare non-biodegradable. Generally it is disposed byway of land filling or incineration of materials which

are hazardous. The better binding property of plastics

in its molten state has helped in finding out a method

of safe disposal of waste plastics, by using them inroad laying. Modified Bitumen is one of theimportant construction materials for flexiblepavements. Use of plastic waste (LDPE) and CrumbRubber i.e. the rubber obtained from the waste tyresof vehicles, in the construction of flexible pavementis gaining importance. It is also worth mentioningthat, the modifier raw-material has been sourced fromdisposed waste plastic and crumb rubber. This notonly allows us to collect modifier raw material at lowcost, but also provides a solution towards ecologicalmenace posed by increased use of plastics (non-biodegradable). In the present study, an attempt has

been made to use waste plastic, Low DensityPolyethylene (LDPE) and Crumb Rubber, blendedusing dry process for LDPE and wet process forCRMB. Marshal method of bituminous mix designwas carried out for varying percentages of LDPE andCrumb Rubber to determine the different mix designcharacteristics.

2. WASTE SCENARIOThe consumption of plastics have increased from4000 tons/annum (1990) to 4 million tons/annum(2001)and it is rise up to 1,35,00,000tones/annum(2011). Nearly 50 to 60% of the total

plastics are consumed for packing. Once used plasticmaterials are thrown out. They do not undergo bio-decomposition. Hence, they are either land filled orincinerated. Both are not ecofriendly processes asthey pollute the land and the air.Waste tyres in India are categorized as solid waste orhazardous waste. It is estimated that about 60% of(retreaded) waste tyres are disposed via unknownroutes in the urban as well as rural areas. The hazardsof waste tyres include- air pollution associated withopen burning of tyres (particulates, odor, visualimpacts, and other harmful contaminants such aspolycyclic aromatic hydrocarbon, dioxin, furans andoxides of nitrogen), aesthetic pollution caused by


3/3

waste tyre stockpiles and illegal waste tyre collectingand other impacts such as alterations in hydrologicalregimes when gullies and watercourses become waste

sites. Table -1Chemical properties of crumb rubber

Content Method Percentage

Acetone extract ASTM D297-1

paper prasentation

Documents