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Evaluation of Plant-Produced High-Percentage RAP Mixtures in the Northeast

General Information

Study Number: TPF-5(230) View Commitment Details Status: Closed Contract/Other Number:
Lead Agency: New Hampshire Department of Transportation Last Updated: Aug 23, 2016
Contract Start Date: Est. Completion Date: Contract End Date:
Solicitation Number: 1261
Partners: MDOT SHA , NHDOT , NJ , NY , PADOT , RI , VA

Contact Information:

Lead Agency Contact(s):
  Ann Scholz
ann.scholz@dot.nh.gov
Phone: 603-271-1659


Financial Summary:

Contract Amount: Total Commitments Received: $631,575.00 100% SP&R Approval: Approved


Commitments by Organization:

Agency Year Commitments Funding Contact Name Contact Number Email Address
Maryland Department of Transportation State Highway Administration 2011 $30,000.00 Allison Hardt 410-545-2916 ahardt@sha.state.md.us
Maryland Department of Transportation State Highway Administration 2012 $30,000.00 Allison Hardt 410-545-2916 ahardt@sha.state.md.us
Maryland Department of Transportation State Highway Administration 2013 $30,000.00 Allison Hardt 410-545-2916 ahardt@sha.state.md.us
Maryland Department of Transportation State Highway Administration 2015 $14,300.00 Allison Hardt 410-545-2916 ahardt@sha.state.md.us
New Hampshire Department of Transportation 2010 $30,000.00 Ann Scholz 603-271-1659 ann.scholz@dot.nh.gov
New Hampshire Department of Transportation 2011 $30,000.00 Ann Scholz 603-271-1659 ann.scholz@dot.nh.gov
New Hampshire Department of Transportation 2012 $30,000.00 Ann Scholz 603-271-1659 ann.scholz@dot.nh.gov
New Jersey Department of Transportation 2010 $0.00 Edward Kondrath 609-530-2058 Ed.Kondrath@dot.state.nj.us
New Jersey Department of Transportation 2011 $90,000.00 Edward Kondrath 609-530-2058 Ed.Kondrath@dot.state.nj.us
New Jersey Department of Transportation 2012 $0.00 Edward Kondrath 609-530-2058 Ed.Kondrath@dot.state.nj.us
New Jersey Department of Transportation 2013 $0.00 Edward Kondrath 609-530-2058 Ed.Kondrath@dot.state.nj.us
New York State Department of Transportation 2010 $30,000.00 Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2011 $30,000.00 Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2012 $30,000.00 Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2014 $48,675.00 Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
Pennsylvania Department of Transportation 2010 $30,000.00 Lisa Tarson (717) 705-2202 ltarson@pa.gov
Pennsylvania Department of Transportation 2011 $30,000.00 Lisa Tarson (717) 705-2202 ltarson@pa.gov
Pennsylvania Department of Transportation 2012 $30,000.00 Lisa Tarson (717) 705-2202 ltarson@pa.gov
Pennsylvania Department of Transportation 2014 $14,300.00 Lisa Tarson (717) 705-2202 ltarson@pa.gov
Rhode Island Department of Transportation 2013 $0.00
Virginia Department of Transportation 2011 $30,000.00 Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2012 $30,000.00 Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2013 $30,000.00 Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2014 $14,300.00 Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov


Study Description

Background:
Production of HMA mixtures with higher percentages of RAP is gaining more attention as a way to save money and more efficiently utilize existing resources. Many state agencies and contractors are very comfortable using RAP percentages of 10-15%. However, questions about low temperature performance and the need to bump binder grades limit the amount of HMA produced with greater than 15-20% RAP in many areas of the northeast US. A previous study presented at the 2010 TRB Annual Meeting performed an evaluation of extracted binder properties for various batch-plant-produced HMA mixtures containing 0-25% RAP. The general conclusion was that binder bumping was not necessary at the 20% RAP level for the mixtures evaluated.

The pooled-fund study proposed herein will expand on the initial work by including higher RAP percentages, drum and batch plants, and mixture testing. Testing of plant-produced mixtures will allow for evaluation of blending and the impact of higher RAP percentages on material properties and performance. Mixture testing will also be expanded to evaluate moisture susceptibility of the mixtures containing RAP. The proposed work will complement an ongoing FHWA evaluation being conducted by the North Central Superpave Center, and other research projects across the country.
Objectives:
The objectives of this research are to:
1. Evaluate the performance of plant-produced RAP mixtures in terms of low temperature cracking, fatigue cracking, and moisture sensitivity in the laboratory and the field
2. Establish guidelines on when it is necessary to bump binder grades with RAP mixtures
3. Provide further understanding of the blending that occurs between RAP and virgin binder in plant-produced mixtures
Scope of Work:
The URL for the draft scope-of-work is provided below. The scope will be modified upon identification of project partners.

The research plan is broken down into two phases. Phase I will focus on evaluating the effects of binder grade and plant type on the properties of mixtures with various percentages of RAP. Phase II will be geared towards evaluating the amount of blending that occurs between the virgin and RAP binders. The testing and results of Phase I will be used to inform the testing matrix and final plan to be developed for Phase II.

Contractors from participating states will be asked to provide plant-produced mix for testing. Table 2 in the draft scope-of-work shows a summary of producers that have already volunteered to participate in this study and detail on the mixtures they are willing to produce. Additional producers will be solicited to ensure that at least one producer from each participating state is represented.
Comments:
The draft scope and budget assumes a minimum of six to seven states participating. A total commitment of $90,000 per state is requested. Commitments may be spread over a three (3) year period. Target participants include states located in the Northeast Asphalt User/Producer Group (NEAUPG) region, Virginia, and NC. Initial stages of work will proceed in CY 2010 based on current commitments.


Documents:

TitleTypePrivate
Phase II Report Final Report N
Effect of Silo Storage Time - Final Report Final Report N
Phase III Final Report Final Report N
Phase I Final Report Final Report N
Acceptance Memo Memorandum N
TPF-5(230) Closeout Letter Memorandum N
Northeast Asphalt User/Producer Group Presentation - October 2011 Other N
RAP ETG Meeting Presentation - July 24, 2012 Other N
Northeast Asphalt User/Producer Group Presentation - October 2012 Other N
TRB 2015 Annual Meeting Poster Presentation Other N
TRB 2016 Annual Meeting Paper Submission Other N
Webinar slides from closeout meeting - April 19, 2016 Other N
TPF-5(230) Closeout Funding Spreadsheet Other N
Quarterly Progress Report: August - December 2010 Quarterly Progress Report N
Quarterly Progress Report: January - March 2011 Quarterly Progress Report N
Quarterly Progress Report: April - June 2011 Quarterly Progress Report N
Quarterly Progress Report: July - September 2011 Quarterly Progress Report N
Quarterly Progress Report: October - December 2011 Quarterly Progress Report N
Quarterly Progress Report: January - March 2012 Quarterly Progress Report N
Quarterly Progress Report: April - June 2012 Quarterly Progress Report N
Quarterly Progress Report: July - September 2012 Quarterly Progress Report N
Quarterly Progress Report: October - December 2012 Quarterly Progress Report N
Quarterly Progress Report: January - March 2013 Quarterly Progress Report N
Quarterly Progress Report: April - June 2013 Quarterly Progress Report N
Quarterly Progress Report: July - September 2013 Quarterly Progress Report N
Quarterly Progress Report: October - December 2013 Quarterly Progress Report N
Quarterly Progress Report: January - March 2014 Quarterly Progress Report N
Quarterly Progress Report: April - June 2014 Quarterly Progress Report N
Quarterly Progress Report: July - September 2014 Quarterly Progress Report N
Quarterly Progress Report: October - December 2014 Quarterly Progress Report N
Quarterly Progress Report: April - June 2015 Quarterly Progress Report N
Quarterly Progress Report: July - September 2015 Quarterly Progress Report N
Quarterly Progress Report: October - December 2015 Quarterly Progress Report N
Quarterly Progress Report: January - March 2016 Quarterly Progress Report N
Draft AAPT Paper on Phase I results Report N
TRB 2015 Annual Meeting Paper Submission Report N


Solicitation Documents:

TitleTypePrivate
Evaluation of Plant-Produced High-Percentage RAP Mixtures in the Northeast Solicitation N
 
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