Fabric Reinforced Backfill Under Approach Slabs

The R1 reinforcement fabric used to wrap the select backfill failed to meet strength specifications but was not removed. A drop in height from the asphalt to the approach slab causes unnecessary dynamic impacting of the approach slab and bridge. Settlement has occurred in both the eastbound (experimental section) and the westbound control approach slabs with about 57% less in the experimental section.


    • English


    • Status: Active
    • Contract Numbers:

      ND 98-06


    • Sponsor Organizations:

      Federal Highway Administration

      1200 New Jersey Avenue, SE
      Washington, DC  United States  20590
    • Project Managers:

      Marquart, Mike

    • Performing Organizations:

      North Dakota Department of Transportation

      300 Airport Road
      Bismarck, ND  United States  58505
    • Principal Investigators:

      Marquart, Mike

    • Start Date: 19980900
    • Expected Completion Date: 0
    • Actual Completion Date: 20020500
    • Source Data: RiP Project 8527

    Subject/Index Terms

    Filing Info

    • Accession Number: 01459079
    • Record Type: Research project
    • Source Agency: North Dakota Department of Transportation
    • Contract Numbers: ND 98-06, NH-4-002(051)138
    • Files: RiP, USDOT, STATEDOT
    • Created Date: Jan 3 2013 12:56PM