Taconite as a Lower Cost Alternative High Friction Surface Treatment to Calcined Bauxite for Low-Volume Roads in Minnesota Status: ActiveProject Start Date: 07/29/2020Subscribe for Updates Summary: Calcined bauxite, the recommended product for High Friction Surface Treatments (HFST), is imported, expensive and energy-intensive to produce. A less expensive, Minnesota mining byproduct, Mesabi (taconite) friction aggregate, will be evaluated to determine if it could provide adequate or comparable field skid resistance performance, and either partially or fully replace calcined bauxite in HFST applications. Final Deliverables: Related Materials: HFST application in St Louis County (2020) - (Video/Webinar) Better Roads: Taconite the answer to fixing Minnesota's dangerous curves? - (News/Publication Article) New Project: Taconite as a Lower Cost Alternative High Friction Surface Treatment to Calcined Bauxite for Low Volume Roads in Minnesota - (Blog Post) Research Need Statement 574 - (Other) Related Research: Optimized Taconite-Based Pavement Repair Compound and Deployment System
