Heated Reclaimed Asphalt Pavement Material and Warm ... - neaupg

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• Both FDR and PMRAPprocesses use “old”materials• PMRAP material isscreened prior toblending - achieveparticle size quality• On projects that requiresignificant realignmentor grade change,PMRAP is the choice• Needs three to sevendays for curing, prior tothe application of HMAoverlayRecycling Options
Needs to Improve PMRAP• Improve the dispersion ofasphalt emulsion on theRAP and henceassociated proprietiessuch as density andresistance to moisture• Improve its compactibility• Maintain a relatively lowtemperature in the mixingand compaction processto keep expenses at arelatively low level• Shorten the waiting timeprior to the application ofHMA overlayCompleted FACompleted PMRAPScheduled FAScheduled PMRAP7644.0010615.009200.209691.00###9202.00# Bangor556.2710217.0010214.00###Augusta ##Portland2850.1011218.00#####10211.009092.00 10210.00#Presque Isle10647.0012115.00
Page 1 and 2: Heated Reclaimed AsphaltPavement Ma
Page 3: • Most of MDOT’s 21,000 milesof
Page 7 and 8: Concepts• The following two conce
Page 9 and 10: • Preparing different mixeswith R
Page 11 and 12: Sieve Size,mmPercent PassingPercent
Page 13 and 14: MixRAP+Emulsion at60 o CHeatedRAP+E
Page 15 and 16: Workability• Torque tester built
Page 19 and 20: logCBR= 2.20- 0.71*(log DCP)1.5M =
Page 21 and 22: RAP-60 o C+3% Emulsion RAP-110 o C+
Page 23 and 24: 0 15 30 45 60 75 90Roller Passes2 %
Page 25 and 26: RAP-150C + 2% AC-150oCMixRAP-125C+
Page 27 and 28: Dry Tensile StrengthTensile Strengt
Page 29 and 30: Conclusions• Heating the RAP prio
Page 31 and 32: Conclusions• For a mixing tempera
Page 33 and 34: ACNOWLEDGEMENTS• Mr. Jeremy Day,

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