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Validating the Fatigue Endurance Limit for Hot Mix Asphalt (2010) / Chapter Skim
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Appendix B - Proposed Standard Practice for Predicting the Endurance Limit of Hot Mix Asphalt (HMA) by Pseudo Strain Approach
Pages 105-110

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From page 105...
... 2. Referenced Documents 2.1 AASHTO Standards • PP XX-XX, Preparation of Cylindrical Performance Test Specimens Using the Superpave Gyratory Compactor • PP XX-XX, Determining the Dynamic Modulus and Flow Number for Hot Mix Asphalt (HMA)
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From page 106...
... 6.1 Specimen Fabrication Equipment – Equipment for fabricating cylindrical test specimens as described in PP XX-XX, Preparation of Cylindrical Performance Test Specimens Using the Superpave Gyratory Compactor. 6.2 Dynamic Modulus Test System – A dynamic test system meeting the requirements of Equipment Specification for the Simple Performance Test System, Version 2.0 6.3 Conditioning Chamber – An environmental chamber for conditioning the test specimens to the desired testing temperature.
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From page 107...
... 9. Test Specimen 9.1 Compaction – Prepare at least three test specimens to the target air void content and aging condition in accordance with AASHTO PP XX-XX, Preparation of Cylindrical Performance Test Specimens Using the Superpave Gyratory Compactor (SGC)
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From page 108...
... 11. Calculations 11.1 Dynamic Modulus Mastercurve Construction 11.1.1 Using data previously obtained dynamic modulus data (refer 10.1)
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From page 109...
... 11.3 Calculation of Pseudo Strain 11.3.1 Using time history of strain (using data obtained in 10.2) and predicted relaxation modulus (refer 11.2)
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From page 110...
... 12. Report 12.1 For each specimen, report the following 12.1.1 Sample air voids 12.2 For each mix, report the following 12.2.1 Reference Temperature 12.2.2 Dynamic modulus master curve coefficients 12.2.3 Strain level at which hysteresis loop appears for first time in cross plot of stress vs.
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Key Terms

  • pseudo strain
  • performance test
  • strain amplitude
  • relaxation modulus
  • endurance limit

  • test specimens
  • simple performance
  • strain level
  • fatigue test
  • modulus master

  • hot mix
  • air void
  • increasing strain
  • superpave gyratory
  • mix asphalt

  • cylindrical performance
  • strain approach
  • specimens using
  • void content
  • asphalt concrete

  • cross plot
  • gyratory compactor
  • specimen fabrication
  • cylindrical test
  • amplitude fatigue

  • modulus test
  • increasing amplitude
  • test specimen
  • reference temperature
  • loop appears


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