keynote address - Australian Asphalt Pavement Association

More documents

Recommendations

Info

RAP QC StatisticsRecycled Hot-Mix <strong>Asphalt</strong> Concrete in Florida: A Variability StudyICAR – 401-1/98RAP propertynAverage(%)Standard Deviation (%)AverageRange<strong>Asphalt</strong> Content 20 5.4 0.30 0.1 to .55% Passing Median Sieve 20 47.9 3.11 1.29 to 5.66% Passing 75 micron Sieve 20 9.1 0.93 0.45 to 2.22Data from p.7 & 8
ICAR‐401‐1/98Based on stockpiles at contractors plant site…• Analysis of variance on the median coefficient ofvariation i revealed that RAP had a lower variationithan virgin aggregates• The statistical analysis revealed that increasing thepercentage of RAP does not increase the coefficientof variation of the mix. (This is in the RAP range of15 to 40% and most of the mixes had between 25‐35percent RAP).• ANOVA for the maximum CV indicated that nosignificant ifi tdifference between any of fthe materials:HMAC, RAP, or virgin aggregate.
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: Variability of RAPTrue or False?•
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 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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?