Utilization of Crumb Rubber Utilization of Crumb Rubber in Paving Construction in Paving Construction SEAUPG 2009 Annual Meeting SEAUPG 2009 Annual Meeting Hilton Head, SC November 11, 2009 Hilton Head, SC November 11, 2009 Asphalt Rubber Technology Service Asphalt Rubber Technology Service Serji Amirkhanian Serji Amirkhanian Human Being Human Being Sleep time!! He is very boring Asphalt Rubber Asphalt Rubber Technology Service Technology Service Phone: (864) 656-6799 Email: [email protected]Website: www.ces.clemson.edu/arts ARTS Mission ARTS Mission To promote the practical utilization of waste tire rubber in hot mix asphalt as well as other civil engineering applications through research, training, education, and information services. Program Overview Program Overview Grants: pay for the difference in cost of Grants: pay for the difference in cost of demonstration projects using crumb demonstration projects using crumb rubber in civil engineering applications rubber in civil engineering applications – Any publicly Any publicly- funded entity in SC eligible funded entity in SC eligible (Cities, Counties, Schools, State Agencies) (Cities, Counties, Schools, State Agencies) Technical Support: Design and manage Technical Support: Design and manage demonstration projects demonstration projects Newsletter: Semi Newsletter: Semi- annual newsletter annual newsletter (ARTS Bulletin) (ARTS Bulletin) Program Overview Program Overview Web page: Web page: www.ces.clemson.edu/arts www.ces.clemson.edu/arts Public Awareness: Seminars and Public Awareness: Seminars and industry conferences industry conferences Education: Provide access to technical Education: Provide access to technical reports, publications and other media reports, publications and other media Technology Transfer: Provide Technology Transfer: Provide interaction with other states and interaction with other states and technology resources technology resources SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Transcript
Utilization of Crumb Rubber Utilization of Crumb Rubber in Paving Constructionin Paving Construction
SEAUPG 2009 Annual MeetingSEAUPG 2009 Annual MeetingHilton Head, SC November 11, 2009Hilton Head, SC November 11, 2009
To promote the practical utilization of waste tire rubber in hot mix asphalt as well as other civil engineering applications through research, training, education, and information services.
Program OverviewProgram Overview
Grants: pay for the difference in cost of Grants: pay for the difference in cost of demonstration projects using crumb demonstration projects using crumb rubber in civil engineering applicationsrubber in civil engineering applications–– Any publiclyAny publicly--funded entity in SC eligible funded entity in SC eligible
(Cities, Counties, Schools, State Agencies)(Cities, Counties, Schools, State Agencies)Technical Support: Design and manage Technical Support: Design and manage demonstration projectsdemonstration projectsNewsletter: SemiNewsletter: Semi--annual newsletter annual newsletter (ARTS Bulletin)(ARTS Bulletin)
Program OverviewProgram Overview
Web page: Web page: www.ces.clemson.edu/artswww.ces.clemson.edu/artsPublic Awareness: Seminars and Public Awareness: Seminars and industry conferencesindustry conferencesEducation: Provide access to technical Education: Provide access to technical reports, publications and other mediareports, publications and other mediaTechnology Transfer: Provide Technology Transfer: Provide interaction with other states and interaction with other states and technology resourcestechnology resources
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Uses of Scrap TiresUses of Scrap TiresRubberRubber--modified asphalt applicationsmodified asphalt applications–– RubberRubber--modifed HMA (densemodifed HMA (dense-- or gapor gap--
(SAMI)(SAMI)Subbase drainage layers in highwaysSubbase drainage layers in highways
Uses of Scrap TiresUses of Scrap TiresLightweight embankmentsLightweight embankmentsSlope stability / retaining wallsSlope stability / retaining wallsTurf grass applications/ sports Turf grass applications/ sports surfacessurfacesPourPour--inin--place surfacing (playgrounds place surfacing (playgrounds and running tracks)and running tracks)Landscaping mulchLandscaping mulch
ARTS AccomplishmentsARTS AccomplishmentsTechnology transfer with other US states and Technology transfer with other US states and with foreign countries, including:with foreign countries, including:–– CanadaCanada–– BelgiumBelgium–– ScotlandScotland–– ChinaChina–– JapanJapan–– ItalyItaly–– BrazilBrazil–– SwedenSweden–– South KoreaSouth Korea–– PolandPoland
ARTS ResearchARTS Research
Research at ARTSResearch at ARTS
Feasibility Study of the Utilization of Crumb Feasibility Study of the Utilization of Crumb Rubber in the Production of New Tires Rubber in the Production of New Tires Evaluation of Modified Asphalt Binders in Evaluation of Modified Asphalt Binders in Superpave Mixtures and OpenSuperpave Mixtures and Open--Graded Friction Graded Friction Courses Courses Recycled Asphalt Pavement (RAP) Used in Recycled Asphalt Pavement (RAP) Used in Superpave Mixes Made with Rubberized Asphalt Superpave Mixes Made with Rubberized Asphalt Utilization of Wasted Fibers in Stone Matrix Utilization of Wasted Fibers in Stone Matrix Asphalt Asphalt
Research at ARTSResearch at ARTSHigh Temperature Properties of Crumb Rubber High Temperature Properties of Crumb Rubber Modified Binders Modified Binders Laboratory Performance Evaluation of Hot Mix Laboratory Performance Evaluation of Hot Mix Asphalt Containing Ground Tire Rubber and Asphalt Containing Ground Tire Rubber and Vestenamer Vestenamer Effects of Rejuvinating Agents on Recycled Effects of Rejuvinating Agents on Recycled Aged Rubber Modified Binders Aged Rubber Modified Binders Effect of Fiber Finish on the Rheological Effect of Fiber Finish on the Rheological Properties of Asphalt BindersProperties of Asphalt Binders
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Research at ARTSResearch at ARTSLaboratory Evaluation of AntiLaboratory Evaluation of Anti--Strip Additives in Strip Additives in Hot Mix Asphalt Hot Mix Asphalt Influences of PAV Test Temperatures on the Influences of PAV Test Temperatures on the Aging of Rubber Modified Asphalt Binders Aging of Rubber Modified Asphalt Binders Application of GPC to Characterize Asphalt Application of GPC to Characterize Asphalt Rejuvenator DiffusionRejuvenator DiffusionEstimation of RAPEstimation of RAP’’s Binder Viscosity using GPC s Binder Viscosity using GPC without Binder Recoverywithout Binder Recovery
Research at ARTSResearch at ARTSEstimation of Rutting Characteristics of Scrap Estimation of Rutting Characteristics of Scrap Tire RubberTire Rubber--Modified Asphalt Binder Using GPCModified Asphalt Binder Using GPCRecycling Reclaimed Asphalt Pavement Recycling Reclaimed Asphalt Pavement Mixtures Containing CrumbMixtures Containing Crumb--RubberRubber--Modified Modified Binders in Hot Mix AsphaltBinders in Hot Mix AsphaltInfluence of Test Temperature on Aging of Influence of Test Temperature on Aging of BindersBindersMicrostructures of Crumb Rubber Modifiers Microstructures of Crumb Rubber Modifiers (CRM) and the Rheological Properties of CRM (CRM) and the Rheological Properties of CRM Modified BindersModified Binders
Research at ARTSResearch at ARTSLaboratory Investigation of Dimensional Laboratory Investigation of Dimensional Changes of Crumb Rubber Reacting with Changes of Crumb Rubber Reacting with Asphalt BinderAsphalt BinderCrumb Rubber Modification of Binders: Crumb Rubber Modification of Binders: Interaction and Particle EffectsInteraction and Particle EffectsEffect of Compaction Temperature on Effect of Compaction Temperature on Rubberized Asphalt MixturesRubberized Asphalt MixturesEffect of Crumb Rubber on the Aging of Asphalt Effect of Crumb Rubber on the Aging of Asphalt BindersBinders
Research at ARTSResearch at ARTSSpecific Surface Area of Crumb Rubber and its Specific Surface Area of Crumb Rubber and its Influence on the Performance of Crumb Rubber Influence on the Performance of Crumb Rubber Modified Asphalt Binders Modified Asphalt Binders Comparison of Field Produced CRM Binders Comparison of Field Produced CRM Binders with Laboratory Produced CRM Binders with Laboratory Produced CRM Binders Fatigue Properties of Rubberized HMA Fatigue Properties of Rubberized HMA Laboratory and Field Investigation of Laboratory and Field Investigation of Temperature Differential in HMA Mixtures Using Temperature Differential in HMA Mixtures Using and Infrared Cameraand Infrared CameraField Trial of Cryogenic CRM HMA PavementField Trial of Cryogenic CRM HMA PavementAnd other ongoing projectsAnd other ongoing projects……
Field Trial Field Trial –– Cryogenic CRM HMACryogenic CRM HMA Field Trial Field Trial –– Cryogenic CRM HMACryogenic CRM HMA
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Field Trial Field Trial –– Cryogenic CRM HMACryogenic CRM HMA Field Trial Field Trial –– Cryogenic CRM HMACryogenic CRM HMA
People youwork with...
The happy employeeThe happy employee
The greedy employeeThe greedy employee The JokerThe Joker
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
The LeaderThe Leader The Loud MouthThe Loud Mouth
The Busy BodyThe Busy Body The Disgruntled EmployeeThe Disgruntled Employee
The Information SpecialistThe Information Specialist Keeper of the nutsKeeper of the nuts
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
The ExpertThe Expert The New Guy The New Guy
The SupervisorThe Supervisor The MoleThe Mole
The Frustrated EmployeeThe Frustrated Employee
AndAndTadaaaaTadaaaa……..
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Da BOSS !!!!Da BOSS !!!! The BossThe Boss’’ Secretary Secretary
The CEOThe CEO
The best time of the The best time of the yearyear
VACATION!VACATION! U.S. Scrap Tires (2007*)U.S. Scrap Tires (2007*)*RMA Report Published May 2009*RMA Report Published May 2009
303 million scrap tires generated annually (1 tire 303 million scrap tires generated annually (1 tire per person)per person)
258 MillionPassenger and Light
Truck Tires( 85%)
45 MillionHeavy Truck
and Commercial
Tires(15%)
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Passenger Car TiresPassenger Car Tires
Other Materials*
20%
Steel20%Rubber
60%
*Other Materials include fiber, oils, waxes, and pigment
Ground Rubber MarketGround Rubber Market
Automotive:Automotive: 100 million pounds100 million poundsMolded/extruded: 400 million poundsMolded/extruded: 400 million poundsCoarse rubber: 100 million poundsCoarse rubber: 100 million poundsInfill sport surfacing: 300 million lbs Infill sport surfacing: 300 million lbs Asphalt: 100 million pounds Asphalt: 100 million pounds Export: 100 million poundsExport: 100 million pounds
Advantages of Rubberized AsphaltAdvantages of Rubberized Asphalt
Longer overall pavement lifeLonger overall pavement lifeIncreased crack resistanceIncreased crack resistanceIncreased rut resistanceIncreased rut resistanceReduced oxidation (slower aging)Reduced oxidation (slower aging)Reduced maintenance needs/costReduced maintenance needs/costIncreased skid resistanceIncreased skid resistanceNoise reductionNoise reductionStandard HMA production, paving, and Standard HMA production, paving, and compaction equipment can be utilizedcompaction equipment can be utilized
Disadvantages of Rubberized AsphaltDisadvantages of Rubberized Asphalt
Higher initial cost (or is it???)Higher initial cost (or is it???)Lack of experienced contractors in early stages Lack of experienced contractors in early stages of agency implementationof agency implementationRequires either use of blending unit or Requires either use of blending unit or coordination with supplier for precoordination with supplier for pre--blended binderblended binderRequires agitated binder storage tank for Requires agitated binder storage tank for rubberrubber--modified liquid binder at HMA plantmodified liquid binder at HMA plantRequires slightly higher production temperaturesRequires slightly higher production temperatures
Dry ProcessDry Process–– CRM blended with aggregateCRM blended with aggregate–– Between 2% Between 2% -- 4% CRM by weight of the 4% CRM by weight of the
asphalt concrete mixtureasphalt concrete mixture
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Paving with RPaving with R--M Surface CourseM Surface Course ControlControl10% GTR10% GTRFlorida SRFlorida SR--16 After 8 Years Performance16 After 8 Years Performance
II--40 Arizona After 8 Years Performance 40 Arizona After 8 Years Performance Conventional Overlay on Left, Rubber on RightConventional Overlay on Left, Rubber on Right RubberRubber--Modified OGFCModified OGFC
Used to decrease noise, increase skid Used to decrease noise, increase skid resistance, and increase surface drainageresistance, and increase surface drainage12% to 20% rubber by weight of virgin binder12% to 20% rubber by weight of virgin binderTires UsedTires Used–– OveOverall: 400 to 890 tires/lanerall: 400 to 890 tires/lane--milemile
Used to prevent reflective crackingUsed to prevent reflective cracking20% to 25% rubber by weight of virgin binder20% to 25% rubber by weight of virgin binderTires Used Overall:Tires Used Overall:–– 725 to 1,115 tires per lane725 to 1,115 tires per lane--mile with conventional HMA overlaymile with conventional HMA overlay–– 1,075 to 2,975 tires per lane1,075 to 2,975 tires per lane--mile with Rmile with R--M HMA overlayM HMA overlay
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Survey administered February 2007Survey administered February 2007
Participating StatesParticipating States
South Carolina
Florida
North Carolina
Washington, D.C.
DelawareNew Jersey
ConnecticutRhode Island
Massachusetts
Maine
New Hampshire
Vermont
New York
Ohio
Kentucky
West Virginia
Pennsylvania
IndianaIllinois
Iowa
Missouri
ArkansasTennessee
GeorgiaAlabamaMississippi
LouisianaTexas
Oklahoma
Nebraska
Kansas
South Dakota
North Dakota
Virginia
New Mexico
Arizona
ColoradoUtah
Nevada
California
Alaska
Minnesota
Wisconsin
Michigan
Montana
Wyoming
Idaho
Oregon
Washington
Maryland
Hawaii
Participating
Not Participating
Does your state use the wet process for producing the Does your state use the wet process for producing the rubberized asphalt (modified binder using crumb rubberized asphalt (modified binder using crumb
rubber) for hot mix asphalt (HMA)?rubber) for hot mix asphalt (HMA)?
2514
Yes
No
The following methods are used for blending binder for The following methods are used for blending binder for rubberrubber--modified asphalt applications (respondents modified asphalt applications (respondents
were asked to check all that applied to them):were asked to check all that applied to them):
10
6
12
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Number of States Using
Blended at Terminal and Transported to Job Site
Blended at Project Site
Blended at Hot Mix Asphalt Plant
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Sources of funding for the use of rubber Sources of funding for the use of rubber modified asphalt:modified asphalt:
9
7
4
2
0 1 2 3 4 5 6 7 8 9
Number of States Using
No subsidized funding
Federal
Other*
State
*See next slide for breakdown of “Other”
The types of mix design methods used The types of mix design methods used for rubber modified asphalt:for rubber modified asphalt:
7
6
1
1
1
0 1 2 3 4 5 6 7 8
Number of States Using
Modified FHWA
Marshall
Hveem
Superpave
Marshall, but changing to Superpave
Does your state use crumb rubber in any Does your state use crumb rubber in any other civil engineering applications?other civil engineering applications?
20 16
Yes
No
Rubber modified binder is used for Rubber modified binder is used for maintenance activities such as:maintenance activities such as:
0
1
4
11
14
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Number of States Using
Chip Seals
Cold Mix
Other*
Patch Mix
Crack Seals
*4 States never used it for maintenance; 1 State only used it once; 1 State used it for thin lift mix
What is the extent of usage of shredded What is the extent of usage of shredded or chopped tires?or chopped tires?
4
6
13
6
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Number of States Using
Not used at all
Use occasionally
Other*
Used once
*See next slide for breakdown of “Other”
*Other usage of shredded or *Other usage of shredded or chopped tires:chopped tires:
Rhode Island– Used from 1998 – 2006 in pavement preservation program
Illinois– Used in landfill remediation projects, including drainage layer
under landfill cap and aggregate in landfill gas collection/recovery system. The studies on these projects will be available in the TDA Civil Engineering Compendium.
California– Contact Linda Fong
South Carolina– Landscaping
New York– Embark. Fill until 25 mil tires are depleted
OhioOhio–– Was used in the midWas used in the mid--9090’’ss
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
Do you see/expect any increase in the Do you see/expect any increase in the use of crumb rubber/TDA in your state?use of crumb rubber/TDA in your state?
2313
Yes
No
Are you currently using or researching Are you currently using or researching the use of polymer/recycled rubber the use of polymer/recycled rubber
blends for use in asphalt?blends for use in asphalt?
24
14
Yes
No
Please check all that apply regarding Please check all that apply regarding your concerns about the use of your concerns about the use of rubberized asphalt in your state.rubberized asphalt in your state.
Don’t know much about process/productUnsure about recyclability
Not your typical polymer binder
Need new mix design procedures
It is still experimental
It does not work
Not your typical binder
Need many equipment changes to work
It is too expensiveOther* 16
127
45
77
13
1
0 1 2 3 4 5 6 7 8 9 1011121314151617
Number of States Using
*See next slide for breakdown of “Other”
*Other concerns about the use of *Other concerns about the use of rubberized asphalt:rubberized asphalt:
Cannot be blended with conventional equipmentCannot be blended with conventional equipmentPerformance aspect of AR in northern climatesPerformance aspect of AR in northern climatesWorking on method of incorporationWorking on method of incorporationOnly one contractor, so bids are not competitiveOnly one contractor, so bids are not competitiveLife cycle cost effectivenessLife cycle cost effectivenessCMCRA the best thing in asphalt in 20 yearsCMCRA the best thing in asphalt in 20 yearsDoes not meet any current needsDoes not meet any current needsWe hope Terminal Blend can be used successfullyWe hope Terminal Blend can be used successfullyHas not proven to be cost effectiveHas not proven to be cost effective
*Other concerns about the use of *Other concerns about the use of rubberized asphalt:rubberized asphalt:
Past experiences were costly and didnPast experiences were costly and didn’’t performt performEnvironmental problemsEnvironmental problemsCaltrans has a long and successful historyCaltrans has a long and successful historySolubility, settlement, and performanceSolubility, settlement, and performanceHad problems getting uniformity in early effortsHad problems getting uniformity in early effortsQuestion the performance in freeze/thaw Question the performance in freeze/thaw environmentenvironmentITD does not use rubberized asphaltITD does not use rubberized asphalt
PresentationPresentation
JUST TO MAKE YOU JUST TO MAKE YOU SMILESMILE
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
What Part of Quiet Do You Not What Part of Quiet Do You Not Understand????Understand????
COULDN'T HELP IT MA, THAT COULDN'T HELP IT MA, THAT FIRST STEP IS A KILLER..FIRST STEP IS A KILLER..
NOW WHAT DO I DO??? NOW WHAT DO I DO??? I REALLY NEED TO GET GOING, BUT I REALLY NEED TO GET GOING, BUT JUST CAN'T SEEM TO GET JUST CAN'T SEEM TO GET
MOTIVATED............MOTIVATED............
MAN...I'M GETTING SO FAT I CAN MAN...I'M GETTING SO FAT I CAN HARDLY SCRATCH MY OWN HARDLY SCRATCH MY OWN
FANNYFANNY !! !! THESE MORNING WALKS ARE THESE MORNING WALKS ARE
KILLING ME!!!! KILLING ME!!!!
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
I said, Go to I said, Go to sleepsleep!! !! Nice doggie...GOOD boyNice doggie...GOOD boy
WHAT PETS DO WHEN WE'RE WHAT PETS DO WHEN WE'RE AT WORK:AT WORK:
WHAT PETS DO WHEN WE'RE AT WORK:
WHAT PETS DO WHEN WE'RE AT WORK:
WHAT PETS DO WHEN WE'RE AT WORK:
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
WHAT PETS DO WHEN WE'RE AT WORK:
WHAT PETS DO WHEN WE'RE AT WORK:
LET ME SHOW YOU HOW.LET ME SHOW YOU HOW.It is done by moving the corners of the It is done by moving the corners of the mouth upward.mouth upward.A Picture is worth a thousand wordsA Picture is worth a thousand words
HAVE YOU SMILED TODAY????? Like ThisLike This……..
And ThisAnd This…….. And ThisAnd This……..
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
And ThisAnd This……..Just in case nobody hasJust in case nobody hasSmiled at you today...Smiled at you today...
I am so glad that he is finished With his boring talk!! You
can wake up now. Thank you!!Thank you!!
Questions?Questions?
SEAUPG 2009 CONFERENCE-HILTON HEAD ISLAND, SOUTH CAROLINA
