keynote address - Australian Asphalt Pavement Association

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RAP Consistency DataGeorgia RAP Stockpiles (Kandhal et. al. Sept. 1997)n% Pass 2.36 mm % Pass 75 µm <strong>Asphalt</strong> ContentAvg. St. Dev. Avg. St. Dev. Avg. St. Dev.Newton County 10 47.5 495 4.95 714 7.14 074 0.74 552 5.52 023 0.23Forest Pk. mlgs. 5 3.60* 3.41 7.02 1.08 5.46 0.31Resaca 10 36.4 2.20 8.72 1.36 5.08 0.21Bryan County 10 42.9 4.63 4.75 0.71 4.83 0.42Lowndes County 10 49.3 4.82 7.36 0.75 5.60 0.48Spartan <strong>Asphalt</strong> 70 58.1 3.5 9.0 0.82 3.8 0.30Pooled data 3.72 0.86 0.3120
More Information onRAP Variability Statistics• Asked for data from about 20 contractorsacross the U.S.• Compiled data for fractionated and non‐fractionated stockpiles• Received data for over 100 stockpiles• Some data was not used (n
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: ICAR‐401‐1/98Based on stockpile
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 54 and 55: How Much RAP Could Be UsedPer rcent
Page 56 and 57: Summary• Many highway agencies ar

keynote address - Australian Asphalt Pavement Association

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