Comparison of 9.5 mm SuperPave and Marshall Wearing I Mixes in ...

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ivChapter 3 Equipment 363.1 Introduction 363.2 Marshall Compaction Hammer 363.3 Marshall Testing Machine 363.4 Superpave Gyratory Compactor 373.5 Asphalt Pavement Analyzer 373.6 Bucket Mixer Description and Use 38Chapter 4 Fine Aggregate Angularity Testing 394.1 Introduction 394.2 Significance and Use of FAA tests 394.3 FAA Test Method and Procedure 394.4 FAA Test Results 414.5 Conclusion 41Chapter 5 Mix Design, Sample Preparation and APA Testing 435.1 Marshall Mix Design 435.1.1 Type of Mixes Developed 435.1.2 Aggregate Preparation and Gradation Development 435.1.3 Specimen Fabrication and Testing 475.1.4 Mix Design Results and Summary 485.2 Superpave Mix Designs 495.2.1 Types of Mixes Developed 495.2.2 Determining the Design Aggregate Structure 505.2.3 Specimen Fabrication 545.2.4 Specimen Testing 555.2.5 Mix Design Results 555.3 APA Testing 565.3.1 Procedure for Determining Sample Weights for Correct Air Voids 575.3.2 Test Procedure 585.3.3 APA Testing Results 59Chapter 6 Data Analysis and Results 616.1 Introduction 616.2 Preliminary Data Analysis and General Observations 616.3 Data Analysis 626.4Evaluation and Comparison with Other Studies 71Chapter 7 Conclusions and Recommendations 757.1 Conclusions 757.2 Recommendations 75References 76Appendix A Bucket Mixer Instructions 78Mixer Setup 78
vMixing Procedure 78Appendix B Fine Aggregate Angularity Test Data 80Appendix C Mix Design Gradation and Data 83Aggregate Design Data 84Mix Design Data 87Appendix D Asphalt Pavement Analyzer Test Data 93LIST OF FIGURESFigure 5.1 Marshall gradation curves ........................................................................................... 46Figure 5.2 Gradation of Heavy and Medium Superpave mixtures ............................................... 51Figure 5.3 Gradation of Superpave Light mixtures ....................................................................... 52Figure 6.1 Rut Depth vs Asphalt Content ..................................................................................... 69Figure 6.2 Rut Depth vs VMA........................................................................................................ 69Figure 6.3 Rut Depth vs Fine Aggregate Angularity ...................................................................... 70Figure 6.4 Rut Depth vs Air Voids ................................................................................................. 70Figure 6.5 Rut Depth vs Percent Limestone Sand ........................................................................ 71Figure 6.6 Volumetric properties of mixes. ................................................................................... 73LIST OF TABLESTable 1.1 Mix Design Types in Experimental Plan. ......................................................................... 4Table 2.1 WVDOH Aggregate Requirements for the Marshall Mix Design Method ....................... 9Table 2.2 WVDOH Marshall Design Criteria .................................................................................. 14Table 2.3 Superpave Consensus Aggregate Properties. ................................................................ 15Table 2.4 Number of Gyrations at Specific Design Traffic Levels ................................................. 19Table 2.5 Superpave Mix Design Criteria ...................................................................................... 23Table 2.6 WVDOH Marshall and Superpave Design Criteria Requirements for Wearing –I Mixes.............................................................................................................................................. 28Table 2.7 Aggregate Blend Proportions ........................................................................................ 29
Page 1 and 2: COMPARISON OF 9.5 MM SUPERPAVE ANDM
Page 3 and 4: iNOTICEThe contents of this report
Page 5: iiiasphalt concrete wearing courses
Page 9 and 10: viiTable C-7 Marshall Medium 13% NS
Page 13 and 14: 4Table 1.1 Mix Design Types in Expe
Page 15 and 16: 6CHAPTER 2 LITERATURE REVIEW2.1 INT
Page 17 and 18: 82. determine aggregate stockpile b
Page 19 and 20: 10SieveAllowable PercentPassing Sie
Page 21 and 22: 12Stability is recorded as the maxi
Page 23 and 24: 14The WVDOH procedure for determini
Page 25 and 26: 16sieve. This is somewhat different
Page 27 and 28: 18G sb = bulk specific gravity of a
Page 29 and 30: 20theoretical gravity at the initia
Page 31 and 32: 22D/B est = adjusted dust to binder
Page 33 and 34: 24P b,est - 0.5%,P b,est ,P b,est +
Page 35 and 36: Percent Passing261009080Superpave U
Page 37 and 38: 28Table 2.6 WVDOH Marshall and Supe
Page 39 and 40: 30Table 2.9 Habib Marshall Analysis
Page 41 and 42: 32theoretically correct in that the
Page 43 and 44: 34the machine. This variability was
Page 45 and 46: 36CHAPTER 3 EQUIPMENT3.1 INTRODUCTI
Page 47 and 48: 38Hose PressureWheel Load100 psi100
Page 49 and 50: 40mouth. This jar rests on a holder
Page 51 and 52: problematic, as the saturated surfa
Page 53 and 54: 44Mechanical Laboratory Sieve. Afte
Page 55 and 56: Percent Passing4610090100% Limeston
Page 57 and 58:
48Maximum specific gravity is a req
Page 59 and 60:
50gradation. This allowed for direc
Page 61 and 62:
Percent Passing521009080Light 100%
Page 63 and 64:
54percentage of aggregate from the
Page 65 and 66:
56Table 5.4 Summary of Volumetric a
Page 67 and 68:
58Table 5.5 Calculated and Adjusted
Page 69 and 70:
60Table 5.6 Results of APA TestsAir
Page 71 and 72:
62exhibit lower rut depths than any
Page 73 and 74:
design had significantly more rutti
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66SP L 100LS SP L 64NS -10.335 2.77
Page 77 and 78:
68percent air voids and percent lim
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Air Voids (%)Uncompacted Voids (%)7
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72than the Marshall mixes. Table 6.
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Voids in the Mineral Aggregate. As
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76REFERENCESAmerican Association of
Page 87 and 88:
78APPENDIX A BUCKET MIXER INSTRUCTI
Page 89 and 90:
80APPENDIX B FINE AGGREGATE ANGULAR
Page 91 and 92:
82Table B-3 Uncompacted Void Conten
Page 93 and 94:
84AGGREGATE DESIGN DATATable C-1 St
Page 95 and 96:
86Table C-3 Computed Blend Gradatio
Page 97 and 98:
88Table C-7 Marshall Medium 13% NS
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90%G mm%AC VMA VTM VFA @ N ini @N d
Page 101 and 102:
92Table C-14 Superpave Light 64% NS
Page 103:
946 2979.3 1696.7 2988.1 2.307 7.09
Page 106 and 107:
971 2912.7 1620.8 2917.9 2.246 7.65
Page 108 and 109:
992 8.40 10.80 7.402 7.90 9.90 7.80
Page 110 and 111:
1011 9.50 6.90 11.502 9.79 7.15 10.
Page 112 and 113:
1032 8.55 5.20 5.95L R RDate Tested
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