Evaluation of Chlorides on Soil and Structural Elements

Colorado Department of Transportation (CDOT) has adopted other DOT corrosion prevention and protection design elements with the intention they will allow the structure to perform adequately throughout, and to the required design life. In previous Mechanically Stabilized Earth (MSE) wall rehabilitation projects, corrosion appears to be localized on the facing/strap connection directly behind the wall. In soil nail walls, full encapsulation is required per Federal Highway Administration (FHWA) design guidance if geotechnical sampling detects a corrosive environment. It is poorly known how corrosive roadway chemicals, such as deicer, are impacting the subsurface and if retaining structures are at risk from infiltration above including soil characteristics that may lead to destabilization of soil compaction. The research is to evaluate chemical migration through soils and look at if more protective design elements are warranted and to what extent those protective measures should take place.

Language

• English

Project

• Status: Active
• Funding: $125000
• Sponsor Organizations:

  Colorado Department of Transportation

  Applied Research and Innovation Branch
  Denver, CO  United States  80204
• Managing Organizations:

  Colorado Department of Transportation

  Applied Research and Innovation Branch
  Denver, CO  United States  80204
• Project Managers:

  Tran, Thien

• Performing Organizations:

  University of Colorado, Boulder

  130 Academy Building, 970 Aurora Avenue
  Boulder, CO  United States  80309
• Start Date: 20240618
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Corrosion; Deicing chemicals; Earth walls; Mechanically stabilized earth
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01930281
• Record Type: Research project
• Source Agency: Colorado Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Sep 16 2024 8:31AM