NRRI > Utility of Taconite Materials as Road Patch for Highway Construction
Last Update Sun Mar 3 15:37:00 CST 2013
To confirm the utility of using inorganically bound taconite aggregate and concentrate as highway road patching and construction materials.The modified formulation developed by NRRI in the first half of 2012 was adopted by TCC Materials, and was produced by TCC in pallet-load quantities for more detailed field evaluations by potential customers. This new formulation was tested during a late October field trial in Duluth, done in conjunction with a new MnDOT-supported project. Further formula modification is planned for 2013.
Preliminary test work using a proprietary binder formulation has demonstrated the utility of using taconite mining products as a highway patching material. Actual field demonstrations show that the material, if properly formulated, can act as a semi-permanent patch.
Significant progress was made on making beneficial adjustments to the formulation, confirmed by laboratory testing conducted by Will DeRocher. Further testing and field trial evaluations will take place during the summer of 2012 via a new project funded by the Center for Transportation Studies/MnDOT.
Start Date 07/01/1999
End Date 04/30/2014
Steven Hauck CoPI
Lawrence Zanko CoPI