Project Details
START DATE
09/01/23
END DATE
02/28/26
FOCUS AREAS
SPONSORS
Iowa Department of Transportation
Iowa Highway Research Board
PARTNERS
University of Iowa
Researchers
Principal Investigator
Hosin "David" Lee
About the research
The main purpose of this research is to develop a comprehensive asphalt recycling strategy for high RAM mix up to 50% in consultation with surrounding state departments of transportation (DOTs), along with cities and counties, by performing the following tasks:
- Evaluate existing and new high RAP projects and test sections
- Select a cracking test procedure as a performance test
- Conduct performance tests of high RAP mixtures up to 50%
- Develop an approval process for rejuvenators
- Evaluate warm mix asphalt (WMA) with a high RAM content
- Develop a comprehensive asphalt pavement recycling strategy