Determination of Creep Compliance and Tensile Strength of Hot-Mix ...

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Tensile Strength ................................................................................................... 29Tensile Failure Strain ........................................................................................... 36Creep Compliance versus IDT Strength............................................. .................. 39CONCLUSIONS..................................................................................... .................. 40RECOMMENDATIONS.......................................................................... .................. 41REFERENCES ........................................................................................................ 42APPENDIX A: CREEP COMPLIANCE ......................................................................AAPPENDIX B: TENSILE STRENGTH & TENSILE FAILURE STRAIN ....................... Iiv
LIST OF FIGURESFigure 1: Test Equipment Setup ................................................................................ 6Figure 2: Instrumented IDT Specimen ....................................................................... 7Figure 3: Pre-Instrumentation Preparation................................................................. 8Figure 4: Typical Load vs Time Plot........................................................................... 9Figure 5: Low Temperature Tensile Strength Testing Configuration........................ 12Figure 6: Deformation Determination for Creep Compliance Calculations............... 15Figure 7: Creep Compliance Comparisons: 6.5% Voids, -20°C............................... 20Figure 8: Creep Compliance Comparisons: 6.5% Voids, -10°C............................... 20Figure 9: Creep Compliance Comparisons: 6.5% Voids, 0°C .................................. 21Figure 10: Irregular Thermal Cracking Output: Original Method: 07-123 ................. 22Figure 11: Creep Compliance Master Curve Creation ............................................. 23Figure 12: Equivalent Area Concept ........................................................................ 24Figure 13: Equivalent Area vs. Original Method: 07-123.......................................... 25Figure 14: Thermal Cracking Output: Equivalent Area Method: 07-123................... 26Figure 15: 100 Second Creep Compliance @ 6.5% Voids @ -10°C........................ 28Figure 16: IDT Strength vs. % Air Voids: 4 Mixes: 21.1°C ....................................... 33Figure 17: IDT Strength vs % Air Voids: 4 Mixes: 4.4°C .......................................... 33Figure 18: IDT Strength vs % Air Voids: 4 Mixes: -10°C.......................................... 34Figure 19: IDT Strength vs % Air Voids: 2 Mixes: -10°C.......................................... 34Figure 20: IDT Strength vs % Air Voids: All Mixes: -10°C........................................ 35Figure 21: IDT Strength: All Mixes @ 6.5% Voids @ -10°C..................................... 35Figure 22: 100 Second Creep Compliance vs IDT Strength: -10°C ......................... 39Figure A-23: 4 Mixes @ 4% Voids & -20°C................................................................BFigure A-24: 6 Mixes @ 6.5% Voids & -20°C.............................................................BFigure A-25: 4 Mixes @ 9% Voids & -20°C................................................................CFigure A-26: 4 Mixes @ 4% Voids & -10°C................................................................CFigure A-27: 6 Mixes @ 6.5% Voids & -10°C.............................................................DFigure A-28: 4 Mixes @ 9% Voids & -10°C................................................................DFigure A-29: 4 Mixes @ 4% Voids & 0°C...................................................................Ev
Page 1 and 2: • • • • • • • • •
Page 3 and 4: TECHNICAL REPORT DOCUMENTATION PAGE
Page 5: TABLE OF CONTENTSACKNOWLEDGEMENTS .
Page 9 and 10: LIST OF TABLESTable 1: HMA Mixes an
Page 11 and 12: OBJECTIVESThe objective of this pro
Page 13 and 14: voids generally describes the avera
Page 15 and 16: Figure 1: Test Equipment SetupCreep
Page 17 and 18: and level of % air voids. Although
Page 19 and 20: specimen is actually at the test te
Page 21 and 22: same four mixes but at 4.4°C (40°
Page 23 and 24: n Dn PNormalization Constant = ×
Page 25 and 26: where:0.05 ≤ ν ≤ 0.50Tensile S
Page 27 and 28: Table 4: Creep Compliance: 06-101 (
Page 29 and 30: 0.10Creep Compliance (1/GPa)07-123
Page 31 and 32: as it pertains to creep compliance,
Page 33 and 34: However, published documentation of
Page 35 and 36: Getting back to the issue of the er
Page 37 and 38: 0.090Creep Compliance @ 100 sec. @
Page 39 and 40: Table 12: Instrumented Tensile Stre
Page 41 and 42: Table 15: All Tensile Strength: -10
Page 43 and 44: 100090080006-101Virgin binder = PG7
Page 45 and 46: Tensile Failure StrainThe tensile f
Page 47 and 48: Table 18: Tensile Failure Strain: -
Page 49 and 50: CONCLUSIONSExpected trends such as
Page 51 and 52: REFERENCES1. Guide for Mechanistic-
Page 53 and 54: APPENDIX A: CREEP COMPLIANCE
Page 55 and 56: 0.080.070.06Creep Compliance (1/GPa
Page 57 and 58:
0.200.180.160.14Creep Compliance (1
Page 59 and 60:
0.180.160.14Creep Compliance (1/GPa
Page 61 and 62:
0.160.140.12Creep Compliance (1/GPa
Page 63 and 64:
0.300.25Creep Compliance (1/GPa)0.2
Page 65 and 66:
0.140.12Creep Compliance (1/GPa)0.1
Page 67 and 68:
Table B-19: Non-instrumented Data @
Page 69 and 70:
Table B-21: Instrumented Data @ 21.
Page 71 and 72:
Table B-23: Instrumented Data @ 4.4
Page 73 and 74:
Table B-25: Instrumented Data @ -10
Page 75 and 76:
Page 77 and 78:
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