Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging (2021) / Chapter Skim
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B-1 A P P E N D I X B Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary
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B-2 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging Proposed AASHTO Practice, 0.8 mm Static Film Shortand Long-Term Conditioning of Asphalt Binder 1.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-3 3.1.2. aging- the change in the properties of asphalt binder due to the combined effects of time, traffic, and the environment.
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B-4 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging practice. The pans may warp if subjected to higher temperatures for cleaning.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-5 15 kPa absolute or less and maintaining the pressure at 15 kPa absolute ±2.5 kPa for at least 30 minutes. The vacuum system shall have a vacuum gauge or electronic pressure sensor with ±0.5 kPa accuracy and readable to 2 kPa or less.
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B-6 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging Note X3 – The penetrometer stand is a good surface for this procedure.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-7 minimum time necessary to ensure that the sample is completely fluid. Manually stir the sample to avoid incorporating air bubbles.
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B-8 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging 9.1.8. Maintain the pans in the oven under pressure at 163 ±1.0°C for 90 minutes ±1 minute.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-9 temperature given that asphalt binder residue under test has been exposed to 163°C during short-term conditioning.
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B-10 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging 9.2.12. Prepare test specimens directly from the residue in the container; subdivide the residues into smaller containers for future testing or set the container aside for future testing.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-11 12.2. Bias- The research required to establish the bias for tests performed on short- or long-term conditioned residue from this practice has not been conducted.
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B-12 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging COMMENTARY FOR DRAFT PROVISIONAL STANDARD PRACTICE FOR 0.8 MM STATIC FILM SHORT- AND LONG-TERM CONDITIONING OF ASPHALT BINDER INTRODUCTION This proposed standard practice describes short- and long-term conditioning of asphalt binder using 0.8 mm thin films. This commentary was prepared to summarize the research from National Cooperative Highway Research Program (NCHRP)
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-13 than 85 minutes is probably needed. For the draft provisional standard, the short-term conditioning time was increased to 90 minutes.
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B-14 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging used in the long-term calibration experiment. These pavements were in 23 states and two provinces and cover a wide range of climates.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-15 Table B-2. Summary of LTPP Sections to be Used in the Long-Term Calibration Experiment.
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B-16 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging Figure B-2. Geographical Distribution of LTPP Sections to Be Used in the Long-Term Calibration Experiment.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-17 5. SIGNIFICANCE AND USE This practice is intended for conditioning binder for grading in accordance with AASHTO M 320 and AASHTO M 322 after modification of the AASHTO M 320 and AASHTO M 332 lowand intermediate-temperature specification property criteria.
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B-18 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging (0.025 in) ." This language came from AASHTO T 179.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-19 should then be evaluated to confirm compliance with the levelness requirement and evaluate the time and effort required to level the pans. Figure B-3.
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B-20 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging Table B-5. Properties of Original Binders.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-21 n.d.)
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B-22 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging selecting the appropriate long-term conditioning temperature from Table 1 of the proposed practice, (5) preheating the PAV to the long-term conditioning temperature.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-23 Table B-6. Summary of Film Thickness Tolerance Calculations for Properties Measured on Short- and Long-Term Conditioned Residue.
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B-24 Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging 9.2 LONG-TERM CONDITIONG 9.2.1. First step in long-term conditioning.
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Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary B-25 temperatures and pressures during short- and long-term conditioning are reported to aid in troubleshooting.
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Abbreviations and acronyms used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FAST Fixing America's Surface Transportation Act (2015) FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012)
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Transportation Research Board 500 Fifth Street, NW Washington, DC 20001 ADDRESS SERVICE REQUESTED ISBN 978-0-309-67393-8 9 7 8 0 3 0 9 6 7 3 9 3 8 9 0 0 0 0
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