Dowel Bar Retrofit Mix MR0301

The North Dakota Department of Transportation (NDDOT) has been constructing dowel bar retrofit projects since 1995 to restore load transfer across transverse joints in plain jointed concrete pavements. While this rehabilitation has worked to restore load transfer, the patch mix material previously used has caused durability problems. There was a need for a low cost patch mix material using locally available materials. The objective of this applied research was to evaluate a patch mix developed at North Dakota State University. It was found that his experimental mix did not perform as hoped. It is recommended that the NDDOT continue using the proprietary mixes currently allowed in the standard specifications due to higher costs and poor performance of the experimental mix. It is also recommended that special attention be given to the location of coreboards after the dowel bar mix is placed.

Language

  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Appendices; Figures; Maps; Photos; Tables;
  • Pagination: v.p.

Subject/Index Terms

Filing Info

  • Accession Number: 01146759
  • Record Type: Publication
  • Report/Paper Numbers: Experimental Study ND 2003-03
  • Files: TRIS, STATEDOT
  • Created Date: Dec 21 2009 2:29PM