Development of Guidelines for Asphalt Recycling in …sites.nationalacademies.org/cs/groups/pgasite/documents/...Development of Guidelines for Asphalt Recycling in Pakistan Pakistan-US

Development of Guidelines for Asphalt Development of Guidelines for Asphalt Recycling in Pakistan

Syed Waqar Haider, Syed Waqar Haider, Ph.D., P.E.Ph.D., P.E.

GilbertGilbert. Y. Baladi, . Y. Baladi, Ph.D., Ph.D., P.E.P.E.

Department of Civil & Environmental EngineeringDepartment of Civil & Environmental Engineeringp C v & v g gp C v & v g g

TayyebTayyeb AkramAkram, , Ph.D.Ph.D.National Institute of Transportation, National Institute of Transportation,

National National University of Science & Technology, University of Science & Technology, Islamabad, Islamabad, PakistanPakistan

PakistanPakistan--U.S. S&T Cooperative Program Symposium U.S. S&T Cooperative Program Symposium IslamabadIslamabad PakistanPakistan January 31January 31 Februray 1 Februray 1 2013 2013

Development of Guidelines for Asphalt Recycling in PakistanDevelopment of Guidelines for Asphalt Recycling in PakistanPakistan-US S&T Symposium, Islamabad, Pakistan, January 2013 1

IslamabadIslamabad, , PakistanPakistan, , January 31January 31--Februray 1, Februray 1, 2013 2013

Presentation Overview

•• IntroductionIntroduction

R h bj tiR h bj ti•• Research objectivesResearch objectives

•• BackgroundBackground

•• Research Research approachapproach

•• AccomplishmentsAccomplishmentspp

•• Research outcomesResearch outcomes

•• Research ImpactsResearch Impacts•• Research ImpactsResearch Impacts


Role of Roads in Economic Development

•• Move goods and people in timely fashionMove goods and people in timely fashion•• Provide access to farms and rural areasProvide access to farms and rural areas•• Create jobsCreate jobs•• Generate investment opportunitiesGenerate investment opportunities•• Improve standard of living Improve standard of living p gp g


Transportation Modes in Pakistan

100PassengerFreight

60

80

(%)

Freight

National Highways only National Highways only t ib t 4 2 % (11 000 k ) t ib t 4 2 % (11 000 k )

40Shar

e ( contributes 4.2 % (11,000 km) contributes 4.2 % (11,000 km)

of the total road network, they of the total road network, they carry 90% of total trafficcarry 90% of total traffic

0

20

Road Rail AirTransport mode

Development of Guidelines for Asphalt Recycling in PakistanDevelopment of Guidelines for Asphalt Recycling in PakistanPakistan-US S&T Symposium, Islamabad, Pakistan, January 2013

Source: Economic Survey 2007Source: Economic Survey 2007--0808

4

Overall Goals of the Research

•• Introduce Introduce asphalt pavement recycling asphalt pavement recycling methodologies methodologies methodologies methodologies

•• Positive socioPositive socio--economic and environmental economic and environmental impactsimpactsimpactsimpacts

•• Technology transfer Technology transfer -- Training local professionals Training local professionals through short coursesthrough short coursesthrough short coursesthrough short courses

•• Capacity building of academic institutionsCapacity building of academic institutions


Research Objectives

Develop guidelines for asphalt pavement recycling in Develop guidelines for asphalt pavement recycling in Pakistan within the given constraints and Pakistan within the given constraints and

i t l ditii t l ditienvironmental conditionsenvironmental conditions

1.1. Develop guidelines for pavement evaluationDevelop guidelines for pavement evaluation

2.2. Investigate the stateInvestigate the state--ofof--thethe--practice for pavement recyclingpractice for pavement recycling

3.3. Develop procedure for material characterization for recyclingDevelop procedure for material characterization for recyclingp p y gp p y g


Research Tasks


Pavement Distress — Rutting

NN--5, Lahore 5, Lahore -- IslamabadIslamabad


Pavement Distress — Cracking

NN--5, Lahore 5, Lahore -- IslamabadIslamabad


Causes of Distress — Excessive truck loads


Causes of Distress — Climatic factors


Needs for Pavement Preservation

•• In 1998, network analysis using the HDMIn 1998, network analysis using the HDM--III III computer program showed that an annual budget computer program showed that an annual budget p p g gp p g gof PKR 6.0 billions per year is required over 10 of PKR 6.0 billions per year is required over 10 years period to improve the average network years period to improve the average network

•• I 2005 h l d i d f PKR 6 0 I 2005 h l d i d f PKR 6 0

conditions to an acceptable levelconditions to an acceptable levelSource: (NHA 2005), and (Rodrigo and Haider 1998)Source: (NHA 2005), and (Rodrigo and Haider 1998)

•• In 2005, the annual needs increased from PKR 6.0 In 2005, the annual needs increased from PKR 6.0 to 10.5 billions after adjusting for inflationto 10.5 billions after adjusting for inflation


The Problem

•• Funding for preventive maintenance, preservation, Funding for preventive maintenance, preservation, rehabilitation, and reconstruction of roadways rehabilitation, and reconstruction of roadways , y, ycompete with other demands on the limited public compete with other demands on the limited public funds and resources. funds and resources.

•• Innovation is required in order to do more with less. Innovation is required in order to do more with less.

A h lt t liA h lt t li i h i h •• Asphalt pavement recyclingAsphalt pavement recycling is one way to stretch is one way to stretch existing budgets to maintain, preserve, rehabilitate and existing budgets to maintain, preserve, rehabilitate and reconstruct more kilometers of roadwaysreconstruct more kilometers of roadwaysreconstruct more kilometers of roadways.reconstruct more kilometers of roadways.


Advantages

•• The advantages of asphalt pavement surface recycling The advantages of asphalt pavement surface recycling (hot or cold in(hot or cold in--place and inplace and in--plant recycling) include:plant recycling) include:

Conservation of natural resourcesConservation of natural resources

Better pavement performanceBetter pavement performance

(( pp p y g)p y g)

Better pavement performanceBetter pavement performance

Reduced traffic disruption, maintained pavement geometry Reduced traffic disruption, maintained pavement geometry and thicknessesand thicknessesand thicknessesand thicknesses


Existing Practice — Wasted resources & environmental hazardsg


Existing Practice — Wasted resources & environmental hazardsg


Hot-in-place Recycling (HIR)

PP h i ih i iPrePre--heating unitheating unit

Wirtgen’sWirtgen’s recycling trainrecycling train


HIR


Remixing unitRemixing unit

18

HIR

Scarifying / Heating unitScarifying / Heating unit


HIR


New HMA placed in remixing unitNew HMA placed in remixing unit

20

Cold Milling


Cold-in-place Recycling (CIR)

CIR t i ki NCIR t i ki N 55Development of Guidelines for Asphalt Recycling in PakistanDevelopment of Guidelines for Asphalt Recycling in PakistanPakistan-US S&T Symposium, Islamabad, Pakistan, January 2013

CIR train working on NCIR train working on N--55

22

CIRcy

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by s

cree

dby

scr

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of m

illed

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eral

Initi

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Initi

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ycle

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eria

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CIR

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r

Mill

ed re

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near

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In-plant Recycling in USA






Technology TransferPakistan team visit to USAPakistan team visit to USA——August 16August 16--25, 200625, 2006

Revised research plan

Visit to cold-in-place recycled road project

Visit to the state-of-the-art asphalt mixing plant

One week training course at NCAT, Auburn

USA team visit to PakistanUSA team visit to Pakistan——December 10December 10--22, 200622, 2006Three-day short course “Infrastructure asset management systems and asphalt recycling practices and technologies”, more than 200 people attending from the road authorities, private sector and academia.

Several recycling projects site visits and meetings with HEC NUST and NHA officialsSeveral recycling projects site visits and meetings with HEC, NUST and NHA officials

USA team visit to PakistanUSA team visit to Pakistan——March 1March 1--9, 20089, 2008Two-day short course “State-of-the-art in road construction and quality control assurance issues”, more than 120 people attending from the road authorities, private sector and academia.more than 120 people attending from the road authorities, private sector and academia.

Several meetings with contractors, consultants, the World Bank, NHA and NUST officials.


Technical Publications• Final Report entitled “Develop Guidelines for Recycling of Develop Guidelines for Recycling of

Asphalt Pavements in PakistanAsphalt Pavements in Pakistan”, 2009.•• Two journal papers presented Two journal papers presented at at the the Annual Meeting of Two journal papers presented Two journal papers presented at at the the Annual Meeting of

Transportation Research Board, 2008 and 2009.•• Nine Nine conference papers conference papers published and presented at following

fconferences:• 6th International Conference MAIREPAV6, Torino, Italy, July 8-10, 2009• 6th RILEM International Conference on Cracking in Pavements, Chicago,

USA, June 8-11, 2008.• 6th International Conference on Road and Airfield Pavement Technology

(ICPT) Conference, Japan, July 2008.• 7th International Conference on: Sustainable Aggregates, Asphalt

Technology and Pavement Engineering, Liverpool, UK. February 20-21, 2008.


Masters Thesis•• Introduction of performanceIntroduction of performance--based specification for Asphalt binders in based specification for Asphalt binders in

PakistanPakistan, by Mr. by Mr. QaziQazi AurangzebAurangzeb, 2007.

•• Characterization of RAP and asphalt binders for their potential use in CIR Characterization of RAP and asphalt binders for their potential use in CIR p pp pwith foamed asphalt through conventional and performance testingwith foamed asphalt through conventional and performance testing, by Mr. Khurram MalikMr. Khurram Malik, 2008.

•• HotHot--inin--place recycling experience on motorway (Mplace recycling experience on motorway (M--2) in Pakistan2) in Pakistan, by Mr. Mr. p y g p y (p y g p y ( )) , yNadeemNadeem A. A. QureshiQureshi, 2008.

•• Developing pavement evaluation guidelines for selection of flexible Developing pavement evaluation guidelines for selection of flexible pavement recycling strategies in Pakistanpavement recycling strategies in Pakistan, by Mr. Mr. ArshadArshad HussainHussain, 2008.p y g gp y g g , y ,

•• Characterization Characterization of binder blends for asphalt mixtures containing of binder blends for asphalt mixtures containing reclaimed asphalt pavements, reclaimed asphalt pavements, by Mr. Mudissar, 2009.

•• R tti R tti S tibilit f A h lt Mi t i l di RAP i Si l S tibilit f A h lt Mi t i l di RAP i Si l •• Rutting Rutting Susceptibility of Asphalt Mixtures including RAP using Simple Susceptibility of Asphalt Mixtures including RAP using Simple Performance TestingPerformance Testing, , by Mr. Anees Ali, 2010.


Training Components

More than 300 highway related professionals from More than 300 highway related professionals from public, private and academic sectors were trained public, private and academic sectors were trained p , pp , pduring short coursesduring short coursesThe academic/research/supporting staff at NIT The academic/research/supporting staff at NIT working on the research were trained for using the working on the research were trained for using the statestate--ofof--thethe--art material testing using new art material testing using new laboratory equipment procured through the research laboratory equipment procured through the research laboratory equipment procured through the research laboratory equipment procured through the research grantgrant


Outcome of the Research•• Guidelines for the evaluation of existing pavements Guidelines for the evaluation of existing pavements

•• Pavement structure assessment criteria for selecting asphalt Pavement structure assessment criteria for selecting asphalt recycling methodrecycling method

•• Guidelines for construction processes which includes detailed Guidelines for construction processes which includes detailed procedures and methodsprocedures and methodsprocedures and methodsprocedures and methods

•• Guidelines for material evaluation and characterization for Guidelines for material evaluation and characterization for asphalt recyclingasphalt recyclingp y gp y g

•• Guidelines for asphalt mixture design involving RAP by highway Guidelines for asphalt mixture design involving RAP by highway class class

•• A process for evaluating and upgrading the guidelinesA process for evaluating and upgrading the guidelines


Research Impactf f h h ll b f h hf f h h ll b f h h

Universities and InstitutionsUniversities and Institutions

Benefits of the research will be for entire highway sector in Benefits of the research will be for entire highway sector in Pakistan. The beneficiaries include:Pakistan. The beneficiaries include:

• National University of Sciences and Technology (NUST)

• National Institute of Transportation (NIT)

• University of Engineering and Technology (UETs) at Lahore Taxila Karachi andUniversity of Engineering and Technology (UETs) at Lahore, Taxila, Karachi, and

• Peshawar

Organizations and AgenciesOrganizations and AgenciesN ti l Hi h A th it (NHA)• National Highway Authority (NHA)

• Provincial Highway Authorities (Punjab, Sindh, NWFP, and Baluchistan)

• Provincial Communications & Works (C&W) Departments

• District and City Governments

• Highway Construction Industry

• Design and Supervision Consultants


Research ImpactResearch Impact


AcknowledgementsAcknowledgements

PakistanPakistan--US Science and US Science and T h l C ti T h l C ti

This research is a part of the This research is a part of the 44--years study (2006years study (2006--2009) 2009) entitled:entitled:

Technology Cooperative Technology Cooperative ProgramProgram

pp y y (y y ( ))

Development of Guidelines for Asphalt Recycling in PakistanDevelopment of Guidelines for Asphalt Recycling in Pakistan


Thank YouThank You


Documents

Development of Guidelines for Asphalt Recycling in …sites.nationalacademies.org/cs/groups/pgasite/documents/...Development of Guidelines for Asphalt Recycling in Pakistan Pakistan-US