SCHOOL OF ENGINEERING CIVIL INDIANA DEPARTMENT OF TRANSPORTATION JOINT HIGHWAY RESEARCH PROJECT FHWA/IN/JHRP-95/12 Final Report EFFECTOF PYROLYZED CARBON BLACK ON ASPHALT CEMENT (PartTwo: Asphalt Binder) Yongdong Zeng and C. W. Lovell SO & UNIVERSITY FINALREPORT USINGPYROLYZED CARBON BLACK(PCB) FROM WASTETTRES INASPHALTPAVEMENTS (PARTII: Asphalt Binder, andTestRoad) FHWA/IN/JHRP-95/12 by Yongdong Zeng Research Assistant and C. W. Lovell Research Engineer PurdueUniversity DepartmentofCivil Engineering JointHighway Research Project ProjectNo: C-36-55L FileNo: 2-12-13 Prepared in coorporation with the U.S. DepartmentofTransportation Federal Highway Adminisration Thecontentsofthisreportreflecttheviewsoftheauthorswhoareresponsible for thefacts andtheaccuracyofthedatapresented herein. Thecontentsdo notnecessarily reflectthe official views or policies of the Federal Highway Administration and the Indiana DepartmentofTransportation. Thisreportdoesnotconstitutea standard, specification, orregulation. PurdueUniversity WestLafayette, Indiana47907 February20, 1996 Digitized by the Internet Archive in 2011 with funding from LYRASIS members and Sloan Foundation; Indiana Department of Transportation http://www.archive.org/details/usingpyrolyzedcaOOzeng 1 TECHNICALREPORTSTANDARDTITLEPAGE 1. ReportNo. 2.GovernmentAccessionNo. 3.Recipient'sCatalogNo. FHWA/IN/JHRP-95/12 4.TitleandSubtitle 5.ReportDate February20,1996 UsingPyrolyzedCarbonBlack(PCB)fromWasteTiresinAsphaltPavements (PartE,AsphaltBinderandTestRoad) 6. PerformingOrganizationCode 7.Authors) 8. PerformingOrganization ReportNo. YongdongZengandC.W.Lovell FHWA/IN/JHRP-95/12 9. PerformingOrganizationNameandAddress 10.WorkUnitNo. JointHighwayResearchProject CivilEngineeringBuilding PurdueUniversity 1 . ContractorGrantNo. WestLafayette,Indiana47907-1284 12. SponsoringAgencyNameandAddress 13. TypeofReportandPeriodCovered FinalReport IndianaDepartmentofTransportation September,1993toMay,1995 IndianaGovernmentCenterNorth 100NorthSenateAvenue Indianapolis,IN46204 14. SponsoringAgencyCode 15. SupplementaryNotes ConductedincooperationwiththeU.S.DepartmentofTransportation,FederalHighwayAdministratioa 16. Abstract ScraptiresderivedfromautomobileshavebecomealargeenvironmentalproblemintheUnitedStates. Inthisstudy,researchiscarriedouttoinvestigatethe potentialuseoftire-derivedpyrolyzedcarbonblackfromscraptiresasanasphaltcementmodifier. TheasphaltcementsusedinthisresearchwereAC10andAC20. Penetrationandsofteningpointtestswereperformedtoobtaintheconsistencyoftheasphalt cements. Thepyrolyzedcarbonblack,asprovidedbyWolfIndustries,wascombinedwiththeasphaltcementinthefollowingpercentages: 5%,10%,15%and 20%. Penetration,softeningpointandductilitytestswereperformedtodeterminethetemperaturesusceptibilityofthemodifiedbinderasalteredbythe pyrolyzedcarbonblack. Inorderthattheresultsarecomparabletoprevioustesting,commercialcarbonblackpurchasedfromCABOTIndustrywasalsousedasamodifierinthe tests. Thesametestprocedureswereappliedtotheasphaltcementsmodifiedbycommercialcarbonblack. Thetestresultscontainedinthisreportillustratetheviabilityofthepyrolyzedcarbonblackasanasphaltmodifier. Recommendationsareprovidedtofacilitate furtherresearchonthisparticularproject Apreliminaryassessmentofatestroadusingthepyrolyzedcarbonisappended. 17. Keywords 18. DistributionStatement scraptires,asphalt,pyrolysisofscraprubber,carbonblack,asphahicbinder, Norestrictions. ThisdocumentisavailabletothepublicthroughtheNational testroad TechnicalInformationService,Virginia,22161 19. SecurityClassif.(ofthisreport) 20. SecurityClassif.(ofthispage) 21.No.ofPages 22. Price Unclassified Unclassified 142 FormDOTF1700.7(8-69) ACKNOWLEDGEMENTS The authorsgratefullyacknowledgethevaluableguidanceprovidedby Dr. Coree andMr. TravisLoworn, whoarewithIndianaDepartmentofTransportation's Divisionof Research, fortheir assistanceinusingtestingequipmentfordeterminingasphaltproperties. Personalinstructionand encouragement fromProfessor Salgado is highly appreciated. Also, sincerethanksare duetoMr.LeeandDr. Parkfortheirhelpanddiscussion. TABLE OF CONTENTS Pages LIST OF FIGURES vi LIST OF TABLES ix Chapter1 INTRODUCTION 1.1 Background 1 1.2 Problem Statement 2 1.3 Objective 3 1.4 Report Organization 3 1.5 Implementatioa 4 Chapter2 LITERATUREREVIEW 2.1 Introductioa 5 2.2 Overview ofAsphalt 6 2.3 Properties ofCarbon Black 7 2.4 General Properties of Asphalt 10 Ill 2.5 Effect of Carbon Black on Asphalt Properties 12 2.6 Chapter Summary 16 Chapter3 MATERIAL PROPERTIES 3.1 Introduction 17 3.2 Carbon Black 17 3.3 Pyrolyzed Carbon Black 18 3.3.1 Techniquesof tirepyrolysis 18 3.3.2 Characteristics of pyrolyzed carbon black used 22 3.4 Asphalt Cements 24 3.5 Chapter Summary 24 Chapter4 DESIGNOFTESTING 4.1 Introduction 25 4.2 Specific gravity test 25 4.2.1 Background 25 4.2.2 Test Equipment 25 4.2.3 Test Procedure 25 4.3 Kinematicviscositytest 26 4.3.1 Background 26 : 4.3.2 Test Equipment 27