High friction surface treatments (HFSTs) on Minnesota roads are composed of imported, industry standard calcined bauxite aggregate. This material is expensive, and producing it is energy-intensive. Taconite aggregate, a by-product of the Minnesota mining industry, is a potential alternative to calcined bauxite that is less expensive. This research compared taconite and calcined bauxite in field skid resistance performance testing to determine the feasibility of using taconite in place of calcined bauxite in HFST applications.
Continue reading Evaluating Taconite as a Lower Cost Friction TreatmentTag Archives: high friction surface treatment
Testing High Friction Aggregates using SCRIM Technology at MnROAD
High Friction Surface Treatments (HFST) are pavement treatments that involve applying a high-quality aggregate and binder to pavement surfaces to help maintain friction. The treatment has significantly reduced crashes and injuries in wet and dry road conditions in high crash areas. However, HFST can be a costly treatment. Researchers, funded by MnDOT and the Local Road Research Board, are evaluating if taconite, a readily available Minnesota byproduct, can be an effective alternative treatment in low volume areas.
Continue reading Testing High Friction Aggregates using SCRIM Technology at MnROAD
New Project: Taconite as a Lower Cost Alternative High Friction Surface Treatment for Low-Volume Roads in Minnesota
A northern Minnesota mining byproduct could provide a more affordable option for a highly effective, but expensive pavement safety treatment called High Friction Surface Treatment (HFST), and help expand its usage across the state.
Continue reading New Project: Taconite as a Lower Cost Alternative High Friction Surface Treatment for Low-Volume Roads in Minnesota
Crossroads 