Optimized Taconite-Based Pavement Repair Compound and Deployment SystemStatus: CompleteReport Date: 02/03/2020 Summary: Researchers further refined an innovative, quick pothole repair method for both concrete and asphalt pavements described in a 2016 Local Road Research Board study. Taconite repair compounds can be mixed on-site by crews in a 15-gallon barrel. A plentiful byproduct of Minnesota mining, taconite material offers an inexpensive alternative to asphalt and cement, and repairs can be applied to flexible and rigid pavements. The patch appears to be durable, though longer-term evaluation will be required, and mixing methods, quantities and thermal and setting times require further refinement. Final Deliverables: Optimized Taconite-Based Pavement Repair Compound and Deployment System (Report #2019-46) Taconite-Based Mixture Shows Further Promise for Repairing Potholes (Research Summary) Related Materials: Taconite-Based Mixture Shows Further Promise for Repairing Potholes (Blog Post) Related Research: Taconite as a Lower Cost Alternative High Friction Surface Treatment to Calcined Bauxite for Low-Volume Roads in Minnesota Taconite as a lower cost alternative High Friction Surface Treatment to Calcined Bauxite for low volume roads in Minnesota Project Personnel: Principal Investigator: Lawrence Zanko Technical Liaison: Perry Collins Project Coordinator: David Glyer Panel Members: Brian Boder - Traffic Engineer Christopher Cheney - District 1 Darrel Brodeen - St. Louis County Eddie Johnson - Materials & Road Research James Kielty - District 1 Krysten S. Foster - Stonebrooke Engineering Michael Hedlund - District 1 Richard Kiesel - U of M Duluth, NRRI Ronald Mulvaney - Materials & Road Research Steve Tverberg - St. Louis County Steven Pecharich - District 1