Research Reports

Chemical Inventory and Database Development for Recycled Material Substitutes

Principal Investigator:

Kim E Grosenheider, Paul Bloom, Thomas R Halbach, Matt Simcik

July 2006

Report no. MnDOT 2006-28

Projects: Chemical Inventory and Database Development for Recycled Material Substitutes

Topics: Environment

MnDOT engineers are increasingly looking to recycled materials as readily available and cost-effective substitutes for natural aggregate and to fly ash as a material that can be used in the stabilization of sub-base soils. These recycled wastes have the potential to contain unacceptably high levels of some chemicals. This project produced chemical data on wastes, non-surface background soils, and natural aggregates for use in a due diligence screening tool in current service by MnDOT and developed by the Office of Environmental Services (OES). These data will be used by OES for their internal MnDOT due diligence determinations using their streamlined hazard evaluation process. A future Local Road Research Board project will transform the OES streamlined hazard evaluation process into a CD-based product for use by the larger transportation community. Data developed by this current project will be used to populate the future CD-based product electronic database. This project will maintain consistency with the current in use Office of Environmental Services (OES) streamlined hazard evaluation process for waste recycling in MnDOT infrastructure projects.

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