keynote address - Australian Asphalt Pavement Association

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How Much RAP Could Be UsedPer rcent0100204060Empirical CDF of RAP Stockpiled/Typical ProductionLognormalo18278081.973.1604080204356.710000%15%25%35%50%100%150%RAP Stockpiled/Typical Production200%
Findings of RAP Supply Survey• Most HMA producers have a limited supply ofRAP (only 27% of producers have enough RAPto run 25% in all mixes)• Nearly half of producers use the same RAP%in surface and non‐surface mixes• Current RAP management practices aregenerally lacking and can be improved.55
Page 6 and 7: Intermediate Mixes: % RAP Allowed0%
Page 8: Asphalt Recycling in the USA• Asp
Page 13 and 14: RubbleRejected MixMultiple Source R
Page 15 and 16: Crushed RAP PileOne-size-fits-all a
Page 17 and 18: Variability of RAPTrue or False?•
Page 19 and 20: ICAR‐401‐1/98Based on stockpile
Page 21 and 22: More Information onRAP Variability
Page 23 and 24: Fractionated vs. non Fractionated23
Page 25 and 26: Barriers to Increasing RAP25
Page 28 and 29: LTPP SPS‐5: RAP vs. Virgin• Fou
Page 33: More Transverse Crackingin Recycled
Page 36 and 37: Barriers to Increasing RAP36
Page 38 and 39: RAP Nomograph‐ High PG Temp.gh Te
Page 40 and 41: EPc*−1⎡ VMA⎡ ⎛ VMA ⎞ *
Page 42 and 43: NCAT Test Track RAP Study42
Page 44 and 45: No RAPN5-0%RAPPG67-22RAP Sections94
Page 46 and 47: Field Performance46
Page 48 and 49: Performance Observations• Very lo
Page 50 and 51: Limitations of the2006 Test Track R
Page 52 and 53: Supply of RAP• Stable 51%• Decl
Page 56 and 57: Summary• Many highway agencies ar

keynote address - Australian Asphalt Pavement Association

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