1. NRRA Mix Rejuvenator Field Test Sections
12/27/2018
Flex Team
Mix Rejuvenator TAP

2. General Description
Construct field sections to show performance of high RAP (>40%) mixes with rejuvenator
Material compatibility issues need to be considered to make results impactful
i.e., Need to learn more than product A works well with binder A and RAP source A
Sections will be built in MN near existing NRRA research so performance monitoring can be easily appended to existing data collection routines
Sections will be 0.1 mile in length and contiguous

3. General Description cont.
Research contract will be written to:
Mix design / lab performance testing
Construction report (plant issues/ field comments)
Field sample testing (MnDOT can collect samples)
AGING??? (needs to be addressed in our lab testing but do not want this experiment to turn into aging experiment)
Recommendations
Contract length likely 1.5 years
Field performance will be monitored long-term (5+ years likely needed to show performance differences)

4. Immediate Action Items
Need to determine rejuvenator products to be used
Ideally, multiple types of rejuvenator will be featured (i.e., bio-based, aromatic, etc.)
This will impact number of sections constructed and variables that can be changed
What products has your state used?
Need to determine variables being tested.
From last call, proposed using 2 binder types (polymer-modified and unmodified)
Alternatively, binder type could be consistent and RAP source could be varied

5. Immediate Action Items cont. Exp. Matrix
Need to determine variables being tested.
From last call, proposed using 2 binder types (polymer-modified and unmodified)

6. Immediate Action Items cont. Exp. Matrix
Alternatively, binder type could be consistent and RAP source could be varied

7. Immediate Action Items cont. Exp. Matrix
These are just ideas to keep us moving. Please provide your feedback
Can vary both RAP and binder for each rejuvenator but that is 4 sections per product.
Not an issue for performance monitoring but may be for mix-design/ lab testing.
Dan Oesch (MoDOT) mentioned use of mix from Missouri or others???
Other recommendations??