Effect of Fine Aggregate Angularity on Asphalt Mixture Performance : Final Report

240 Pages·2000·6.2 MB·English

by  Lee, Chih-Jen

Joint
Transportation
Research
I
Program
JTRP
JOINTTRANSPORTATIONRESEARCHPROGRAM
FHWA/DV/JTRP-98/20
FinalReport
EFFECTOFFINEAGGREGATEANGULARITYON
ASPHALTMIXTUREPERFORMANCE
Chih-JenLee
ThomasD.White
TerryR.West
July 1999
Indiana
Department
of Transportation
Purdue
University

Final Report
FHWA/INDOT/JTRP-98/20
EFFECT OF FINE AGGREGATEANGULARITY ON ASPHALT MIXTURE
PERFORMANCE
by
Chih-JenLee,
Thomas D. White,
and
Terry R. West
JointTransportationResearchProgram
ProjectNo: C-36-21H
FileNo: 2-8-8
Preparedas PartofanInvestigation
Conductedbythe
JointTransportationResearchProgram
PurdueUniversity
InCooperationwiththe
IndianaDepartmentofTransportation
andthe
U.S. DepartmentofTransportation
FederalHighwayAdministration
The content ofthis report reflect the views ofthe authors who are responsible for the
facts and accuracy ofthe data presented herein. The contents do not necessarily reflect
the official views orpolicies ofthe Indiana Department ofTransportation or the Federal
Highway Administration. This report does not constitute a standard or specification or
regulation.
SchoolofCivil Engineering
PurdueUniversity
WestLafayette, Indiana47907
July, 1999

TECHNICALREPORTSTANDARDTITLEPAGE
1. ReportNo. 2. GovernmentAccessionNo. 3. Recipient'sCatalogNo.
FHWA/IN/JTRP-98/20
4. TitleandSubtitle 5. ReportDate
July1999
EffectofFineAggregateAngularityonAsphaltMixturePerformance
6. PerformingOrganizationCode
7. Authors) S. PerformingOrganizationReportNo.
FHWA/IN/JTRP-98/20
Chih-JenLee,ThomasD.White,andTerryR.West
9. PerformingOrganizationNameandAddress 10.WorkUnivNo.
JointHighwayResearchProject
1284CivilEngineeringBuilding 11.ContractorGrantNo.
PurdueUniversity SPR-2153
WestLafayette,Indiana47907-1284
12.SponsoringAgencyNameandAddress 13.TypeofReportandPeriodCovered
IndianaDepartmentofTransportation FinalReport
StateOfficeBuilding
100NorthSenateAvenue 14.SponsoringAgencyCode
Indianapolis,IN46204
15.SupplementaryNotes
PreparedincooperationwiththeIndianaDepartmentofTransportationandFederalHighwayAdministration.
16.Abstract
Superpaveaggregatequalificationincludesthefineaggregateangularity(FAA). Fineaggregateangularitylevelsusedinthe
Superpavesystemarebelow40,40to45andabove45. Thehighervaluesarespecifiedforlayersnearthesurfaceandforhigher
trafficlevels.
Theobjectiveofthisstudywastoaddresstheeffectoffineaggregateangularityonasphaltmixtureruttingperformance. A
totalof18mixturesweredesignedaccordingtotheSuperpavevolumetricdesigncriteria. Asurfacemixtureutilizingapartially
crushed9.5mmcoarseaggregateandasinglePG64-22binderwereutilized. Thepoorqualitycoarseaggregatewasusedtomaximum
theeffectsofthevariousfineaggregates. TestsconductedincludedPURWheelLaboratoryWheelTrackingDevice,SimpleShear
Test(SST),CompactedAggregateResistance(CAR)test,andFloridaBearingValue.
Testresults indicated thatthe useoffineaggregateangularity(FAA)doesnotbe itselfassuregood mixturerutting
performance. Otherfactorssuchasmixturegradation,asphaltcontent,dustamountandmixturecompacubilityalsoinfluencemixture
ruttingperformance. AperformancetestsuchasthePURWheellaboratorywheeltrackingdevicecanbeusedtoassurethatmixtures
willexhibitthedesiredlevelofruttingperformance.
17.Keywords 18.DistributionStatement
asphalt,mixtures,performance,Superpave,laboratorywheeltests, Norestrictions. Thisdocumentisavailabletothepublicthroughthe
PURWheel,aggregates,fineaggregateangularity NationalTechnicalInformationService.Springfield,VA22161
19.SecurityClassif.(ofthisreport) 20.SecurityClassif.(ofthispage) 21.No.ofPages
Unclassified Unclassified 225
FormDOTF1700.7(8-69)

IV
TABLEOF CONTENTS
Page
LISTOF TABLES
vii
LISTOF FIGURES ix
IMPLEMENTATIONREPORT
xii
CHAPTER INTRODUCTION
1 1
1.1 Fine Aggregate Angularity 1
1.2Approach 2
1.3 Scope 3
1.4 Summary 4
CHAPTER2 LITERATUREREVIEW 5
2.1 Introduction 5
2.2EffectsofFineAggregateGeometricPropertiesonMixtures 6
2.3 FineAggregate ShapeandSurfaceTextureTests 8
CHAPTER3 MATERIALS 17
3.1 Introduction 17
Page
3.2AsphaltandAggregate 17
3.2.1 Asphalt 17
3.2.2Aggregate 18
3.2.3 ASTMTestsonAggregate 19
3.2.4PetrographicAnalysis 20
3.3 CompactedAggregateResistance(CAR)Test 22
3.4FloridaBearingValue 22
CHAPTER4 MIXTUREDESIGNS 37
4.1 Gradations 37
4.2MixtureDesignProcedures 38
4.3 MixtureDesignResults 40
CHAPTER5 PERFORMANCETESTS ONMIXTURES 55
5.1 PurwheelLaboratoryTrackingTest 55
5.1.1 CompactionDevice 55
5.1.2WheelTrackingDevice 56
5.1.3 SamplePreparationandTesing 57
5.1.4WheelTrackTestingEvaluation 59
5.1.5 TestResults 61
5.2Simple ShearTest 61
5.2.1 Introduction 61
5.2.2 SamplePreparation 62
5.2.3 Frequency SweepTest,ConstantHeight 63
5.2.4RepeatedShearTest,ConstantHeight 63
5.2.5 TestResults 64
CHAPTER6ANALYSIS OFEXPERIMANTALDATA 100
6.1 FilmThickness 100
VI
Page
6.2 PURWheel PerformanceTest 102
6.3 Statistical Analysis 104
6.3.1 RegressiononAll Mixtures 105
6.3.2 Slag SandMixtures 107
6.3.3 Limestone SandMixtures 109
6.3.4 CorrelationBetween AggregateTestsandMixtureTests 110
CHAPTER7 CONCLUSIONS AND RECOMMENDATIONS 128
LISTOF REFERENCES 133
APPENDICES
AppendixA 138
AppendixB 141
AppendixC 145
AppendixD 200
Digitized by the Internet Archive
in 2011 with funding from
LYRASIS members and Sloan Foundation; Indiana Department of Transportation
http://www.archive.org/details/effectoffineaggrOOIeec