ai’s reob task force · joel r. m. oliveira, hugo m.r.d. silva, carlos m.g. jesus, liliana p.f....

AI’sREOBTaskForce

NEAUPGAnnualMeetingOct.21-22,2015

• AsphaltInstitutesupportstheresponsiblemodificationofasphaltmaterialsforimprovedperformanceandbetterlifecyclecosts,butdoesnotendorseanyspecificorproprietaryformofmodification.• AIcurrentlyhasnoofficial(written)guidanceonREOB.• AIdoeshaveinformation/guidance/studiesregardingsomemodificationtypes(PPA,SEA,PMA)• REOBTFformedSummer2014underTACtodevelopanInformationalSeries(IS)documentonREOBmodification• JohnBrownie- Chair,MikeAnderson,SandyBrown,MarkBuncher,GregHarder,PaulSohi,GaylonBaumgardner,EverettCrews,KevinHardin,EdgardHitti,MarkHomer,GeraldReinke,BobHockman,LaurandLewandowski,TonyKriech,MattCorrigan(FHWA)

Background

• F-T-FmeetingwasAug20th inLakeTahoe• LastWebExmeetingwasSept10th

• F-T-FmeetinginLexingtonKYonSept29-30• Review1st draftofdocumentinitsentirety

• 2-hrseminarhostedbyREOBTFinDecatAIAnnualMtg toaddressgapsinknowledge• GoalofpublishingdocumentinMay2016

•MaintainAI’spublicrepositoryofREOBinfo.• Publications,presentationsatpublicmtgs ,manufacturersinfo

AIEOBTFActivitiesandTimeline

AI’sREOBwebpage

• GeneralOverview&IntentofInformationalDocument• REOBProductionandManufacturing,MaterialCharacteristicsandComposition• LiteratureReviewofREOBinAsphaltandPerformance• HSEAspects• ConsiderationsforanImprovedBinderSpec• FrequentlyAskedQuestionsbyAgenciesandAnswers

OutlineofDraftREOBDocument

REOBTaskForceLiteratureReview

• 17Researchpapersreviewed• First16onperformance,17th ondetection• Allpublishedand/orpeerreviewed• Onein1993,othersfrom2009-2015• ListedonAI’sREOBwebpage• Byacademia,consultants,REOBmanufacturers,agencies• Someinfoinmultiplepublications• EOBdosagesvaried:5-20%.• OftenveylittlematerialcharacterizationofREOB

• 7paperssuggesttheuseofREOBisdetrimentaltopavementperformance• 7paperssuggesttheuseofREOBisnotdetrimentalandmayenhancepavementperformance• 2paperslookedatwasteengineoil(notre-refined)

• 1wasfavorablewhenusedwith100%RAP• 1wasgenerallynotfavorable

1.WasteOilDistillationBottomsAsBitumenExtenders,1993RTRP.R.Herrington,V.K.Dravitzki,C.W.B.Wood,andJ.E.Patrick

2.FiveYearPerformanceReviewofaNorthernOntarioPavementTrial:ValidationofOntario’sDouble-Edge-NotchedTensionTest(DENT)andExtendedBendingBeamRheometer(BBR)TestMethods,2009CTAA

S.A.MHesp,S.N.Genin,D.Scafe,H.F.Shurvell andS.Subramani

3.AsphaltCementLossTangentasSurrogatePerformanceIndicatorforControlofThermalCracking,2009TRB

Abdolrasoul Soleimani,Shanan Walsh,andSimonA.M.Hesp

4.X-rayFluorescenceDetectionofWasteEngineOilResidueInAsphaltandItsEffectonCrackingInService,2010IJPE

SimonA.M.Hesp andHerbertF.Shurvell

5.OxidativeAgingOfAsphaltCementsFromanOntarioPavementTrial,2011IJPELoganWright,Amit Kanabar,EricMoult,SyedRubab,andSimonHesp

6.EffectsofEngineOilResiduesonAsphaltCementQuality,2011 CTAASyedRubab,Kezia Burke,LoganWright,andSimonHesp,PamelaMarksandChrisRaymond–OntarioMinistryofTransportation


7.WasteEngineOilResidueinAsphaltCement,2012MAIREPAVES.A.M.Hesp andH.F.Shurvell

8.AsphaltBinderModificationwithRe-RefinedHeavyVacuumDistillationOil(RHVDO),2012CTAA

JohnD’Angelo,KenGrzybowski,andSteveLewis

9.EvaluationofthePerformancePropertiesofAsphaltMixesProducedwithRe-refinedHeavyVacuumDistillateBottoms,2013CTAA

JohnA.D’Angelo,KenGrzybowski,SteveLewis,andRodneyWalker

10.PushingtheAsphaltRecyclingTechnologytotheLimit,2013IJPRTJoelR.M.Oliveira,HugoM.R.D.Silva,CarlosM.G.Jesus,LilianaP.F.Abreu,andSaraR.M.Fernandes

11.InvestigationoftheEffectofOilModificationonCriticalCharacteristicsofAsphaltBinders,2013DissertationUniv ofWI-Madison

AmirGolalipour

12.EffectofWasteEngineOilResidueonQualityandDurabilityofSHRPMaterialsReferenceLibraryBinders,2014TRB

Kelli-AnneN.JohnsonandSimonA.M.Hesp


13.ThePerformanceofAgedAsphaltMaterialsRejuvenatedwithWasteEngineOil,2014IJPRT

ChristopherD.DeDene andZhanping You

14.EvaluationofOilModificationEffectonAsphaltBinderThermalCrackingandAgingProperties,2014CTAA

AmirGolalipour,HussainBahia

15.TheImpactofAsphaltBlendedwithRe-refinedVacuumTowerBottoms(RTVB)andItsEffectonHMAMixturePerformance,2014CTAA

JasonC.Wielinski,AnthonyJ.Kreich,GeraldA.Huber,AndreasHorton,LindaV.Osborn,HeritageResearchGroup

16.AnalysisofVacuumTowerAsphaltExtenderandEffectonBitumenandAsphaltProperties,2015RMPD

JasonC.Wielinski,AnthonyJ.Kreich,GeraldA.Huber,AndreasHorton,LindaV.Osborn,HeritageResearchGroup

17.AnalysisofAsphaltBindersforRecycledEngineOilBottomsbyX-rayFluorescenceSpectroscopy,2015TRB

TerrySArnold,AShastry,FHWAEditors


SampleFindingsfromFirstPublishedPaperin19931.WasteOilDistillationBottomsAsBitumenExtenders

P.R.Herrington,V.K.Dravitzki,C.W.B.Wood,andJ.E.Patrick

§ Callsit“WasteOilDistillationBottoms”§ Blendshad9%and20%WODB,comparedtocontrolofequalpen

§ AllWODBblendsshowedsimilarorpositiveeffectsrelativetocontrol,exceptforlowerductility

§ Displayedsimilarfieldperformance(upto14months)§ Noconstructabilityissues§ MentionedconsiderablevariationinWODBphysicalpropertiesover 13monthsofmonitoringproduction


• Useisdetrimental– papers2,3,4,5,6,7,12• AllbyHesp etal• CurrentSuperpave testing/specificationdoesn’tproperlypredictfieldperformance• Needforadditionalaging/testingprotocols• Poorfieldperformanceofbinderscontainingzinc

• 15%REOBestimatedinbinder• Proposedextendedaging/newtestmethods(Dent,ExBBR)wouldhavepredictedpoorperformance

• Wasteengineoiluseisdetrimental– paper13• Bindertestingofvirgin/RAP/WEOshowedreducedagingcharacteristics• MixtestingshowedanincreaseinruttingandareductioninTSRstrengths



• Useisnotdetrimental– papers1,8,9,11,14,15,16• Bindertestingshowedimprovedpropertieswithmostblendscontaining10%orlessREOB(somebindertestinginpaper8wasdoneat20%)whencomparedtoconventionalbinders• Additionalagingwasincluded• Mixturetestingcompletedat10%orlessREOB- indicatedequalorimprovedlaboratorymixturepropertieswhencomparedtocontrolmixtures• Limitedfielddata

• Wasteengineoiluseisnotdetrimental– paper10• WEOusedin100%RAPmixturesasarejuvenator• Equivalentlaboratorymixtureperformancecomparedtoconventionalmixture

ManyNamesintheLiteratureforREOB/VTAE

• Re-refinedVacuumTowerBottoms(RVTB)• HeritageResearchGroup,2014

• WasteEngineOilResidue(WEOR),WasteEngineOil(WEO)Residue,EngineOilResidue(EOR)• SimonHesp (QueensUniv.)

• WasteOilDistillationBottoms(WODB)• Herrington(1993)

• Re-RefinedHeavyVacuumDistillationOil(RHVDO),Re-refinedHeavyVacuumDistillateBottoms(RHVDB)• D’Angelo

• AsphaltFlux,AsphaltExtender,AsphaltBlowdown,VacuumTowerAsphaltBinder(VTAB),Others,NowVTAE• NationalOilRecyclersAssociation(NORA)

Currently,“REOB”termprevalentlyusedbyhighwayagenciesand“VTAE”prevalentlyusedbymanufacturers

REOBIndustryUpdate- NORANationalOilRecyclersAssociation(NORA)hasdevelopedtwodraftASTMspecsonVTAE(Roofing&Paving)• DraftSpecsonNORA’swebsite• BroughttoASTMmeetinginJune• Specdevelopmentandballotprocessexpectedtotake~18mos.

• “VTAEistheproductofprocessingusedoilusingatmosphericdistillationfollowedbyvacuumdistillationtoproduceavacuumresiduummeetingthespecificationsoutlinedinTable1.”• “VTAEshallbehomogenous,freefromwater,notfoamwhenheatedto350ºF.”• Table1

• FlashPoint,COC:min450ºF(forroofing:min500ºF)• MassChange,RTFOT:max1.0%• SolubilityinTrichloroethylene:min98.0%

o Solubilityoflessthan98.0%isacceptableprovidedthefinalasphaltblendedproductmeetsthesolubilityrequirementsinthespecifications

• Viscosity,140°F:max5000cP

• Newdocumenthadbeendeveloped&approvedbytheNEAUPGrequiringallnon-bituminouscomponentsaddedtoabindertobeidentified.Reportingshallbeasfollows:• Anynon-bituminouscomponentsaddedpriortothepointwheresamplesaretakenforcertificationpurposesmustappearontheCertificateofAnalysis(COA).

• Anynon-bituminouscomponentsaddedafterthecertificationsamplepointbutpriortotransportmustappearontheBillofLading.

• Anynon-bituminouscomponentsaddedattheHMAplantmustappearontheHMAproducer'sdocumentation.

• Thereportingofallnon-bituminouscomponentsshallonlydisclosetheirpresenceandshall not disclosetheirdosageasthisisconsideredproprietary.

• Any"specialhandling"requirementsshallremainontheBillofLading.• Theattachedlistshall not beconsideredasall-inclusivebutprovidessomeexamplesofthedifferenttypesofnon-bituminouscomponents.

• Thelistshallalso not beconsideredasanytypeofanapprovedlistofadditives– pleaseconsultwitheachindividualagencytoinsuretheiracceptancefortheadditivesuse.

• It’sunclearifandhowallNEAUPGStateswillrequirethisdisclosure;however,manyhaveindicatedtheywould.

REOBIndustryUpdate- NEAUPG

ETG• NewREOBrelatedtaskforceformedundertheFHWABinderETGatAprilmtg.

• LedbyGeoffRowe

• TheTFwasaskedtoworkonthefollowing:• Synthesize&summarizeinformationpresentedattheApril2015ETG• Include discussiononuseofdeltaTcortheGRparametertoevaluateblendedbinderscontainingREOB,RAS,RAP,RAs,etc.

• Includediscussiononextendedlabaging(i.e.PAVx2)• Draft“whitepaper”hasbeencompletedbyGeoffRowe,presentedtoBinderETGonSept15

AASHTO• REOBTaskForcePresentationtoSOMinAugust• SubcommitteeonResearchacceptedRNSinresponsetotheREOBissue

• NCHRP09-60:TheImpactsonPavementPerformancefromChangesinAsphaltProduction• Expertpanelformed• Expectedfundingis$1,000,000

REOBIndustryUpdate

Summary:AIandREOB

• AIWorkingonREOBInformationalDocumentoPublicationgoalofMay2016oModeledafterAI’sPPAInformationalSeries(IS-220)oBalanced,state-of-the-knowledge,basedonscienceoHelpagenciesmakeinformeddecisions

• Untilthen,AIhasnoofficialpositiononREOB• GuidancefromIS-220,“PolyphosphoricAcidModificationofAsphalt”(2005)stillvalido “TheAsphaltInstitutesupportstheresponsiblemodificationofasphaltmaterialsforimprovedperformanceandbetterlifecyclecosts,butdoesnotendorseanyspecificorproprietaryformofmodification.Furthermore,theAsphaltInstituteencouragesthecontinuingdevelopmentofperformance-relatedspecificationstoreplacerecipe-typebinderspecificationswhereverfeasible.”

BinderCommitteeAgenda

• PossibleadoptionofAASHTOR-15forapprovingbinderadditives/modifiers• Jnrdifferenceissues- causesandhowtheyaffectAMRLresults• BinderQCplans– regionalapprovalprocess• Vacuumdegassing– yeahornay?Who’sdoingwhat?• Standardizedapproachtoresolvingissuesbetweenlabresults– isthissomethingweneed?

• Tomorrowat1PM– allareencouragedandwelcometoattend

Questions?

ai’s reob task force · joel r. m. oliveira, hugo m.r.d. silva, carlos m.g. jesus, liliana p.f....

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