Center for Applied Research
and Technology Development:
Economic Geology Group
NRRI  >  CARTD  >  Economic Geology Group  >  Taconite Aggregate
Map of current work areas. Click on image for a larger version.

Map of current work areas.  Click on image for a larger version.

work in photograph is from a project where more than 1,500,000 tons of coarse tailings were used in construction of the Hwy 53 - TH169 interchange north of Virginia, MN.

More than 1,500,000 tons of coarse tailings were used in construction of the Hwy 53 - TH169 interchange north of Virginia, MN.

Photo of typical coarse taconite tailings.

Typical coarse taconite tailings.

Taconite Aggregate

Download the PowerPoint presentations from the NRRI Taconite Aggregate Research Program - Organizational and Strategy Meeting 2/09/2005
2 9 2006 Tac Agg Meeting General.pdf

Building on previous taconite aggregate research efforts, the NRRI’s Economic Geology Group is leading a comprehensive research and demonstration program that is designed to accelerate the usage of Minnesota’s vast quantities of taconite mining byproducts for construction aggregate purposes.  The three-year (2006-2008) program is being supported with $1,250,000 of federal funding from the Department of Commerce, Economic Development Administration, and an additional $416,667 of matching funds from the Permanent University Trust Fund, Iron Range Resources, Minnesota Power, the Blandin Foundation, and Minnesota Technology, Inc.

Contact Larry Zanko

Major taconite aggregate program activities

The following activities comprise NRRI’s 2006-2008 taconite aggregate research program:

Successful completion of the major research program activities will put Minnesota taconite mining byproducts in position for being an important and high-quality source of highway and construction aggregate materials for many markets.  Combined with the critical need for repairing, maintaining, and upgrading the nation’s transportation infrastructure, the potential for Minnesota’s taconite mining byproducts is tremendous.

Download the PowerPoint presentations from the NRRI Taconite Aggregate Research Program - Organizational and Strategy Meeting 2/09/2005 - 2_9_2006TacAggMeetingPPT.zip