Third-Year Performance Study of Highway 4 Jointless Fiber-Reinforced Concrete (FRC) Roundabout
The use of roundabouts in rural areas of the US is growing rapidly. For roundabouts constructed with concrete pavement, joint layout can be especially challenging. To reduce the need for sophisticated joint layouts, consideration is being given to constructing roundabouts without joints and instead using structural fiber-reinforced concrete (FRC) to bridge any cracks that might occur. In 2018, Minnesota’s first jointless FRC pavement roundabout was constructed at the intersection of Minnesota Trunk Highway 4 and County State Aid Highway 29. The National Road Research Alliance (NRRA) sponsored a study to document the construction and performance of Minnesota’s first jointless FRC roundabout. One of the key objectives was to carry out a three-year performance monitoring regimen of the roundabout to better understand its in-situ performance when exposed to traffic loading and environmental conditions. This report documents the third-year performance of the roundabout as per the requirements of Task 3 of the work plan.
- Record URL:
- Summary URL:
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Corporate Authors:
National Concrete Pavement Technology Center
Iowa State University
2711 South Loop Drive, Suite 4700
Ames, IA United States 50010-8664Minnesota Department of Transportation
National Road Research Alliance Pooled Fund
St. Paul, MN United StatesFederal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- King, Dan
- Taylor, Peter
- Sadati, Seyedhamed
- Publication Date: 2022-1
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; Photos; Tables;
- Pagination: 68p
Subject/Index Terms
- TRT Terms: Fiber reinforced concrete; Pavement performance; Roundabouts; Rural areas
- Geographic Terms: Minnesota
- Subject Areas: Design; Highways; Pavements;
Filing Info
- Accession Number: 01845319
- Record Type: Publication
- Report/Paper Numbers: NRRA202201
- Contract Numbers: 1034467 (Task 3)
- Files: TRIS, ATRI, USDOT, STATEDOT
- Created Date: May 16 2022 4:59PM