Design of a High-Performance Concrete Mix for Use in Dowel Bar Retrofit

Trial concrete mixes were made using local aggregates, an air entraining admixture, a water reducing (superplasticizer) admixture, and an accelerating admixture. The final mix design had high early strength (greater than 4,000 psi in 6-hours), 9-inch slump, and 5.75% air content. The final mix design was placed in styrofoam molds that had the same dimensions as the dowel bar slots in the field. The final mix design showed no signs of debonding or shrinkage. The estimated cost for materials (concrete patch mix only and no labor costs) per slot is approximately $1.83 to $2.06. These costs will vary depending on the supplier or manufacturer of each material used.

  • Supplemental Notes:
    • Final Report

Language

  • English

Project

  • Status: Terminated
  • Contract Numbers:

    NDSU 2000-01

  • Sponsor Organizations:

    North Dakota Department of Transportation

    300 Airport Road
    Bismarck, ND  United States  58505
  • Project Managers:

    Yazdani, Frank

    Salaheldin, Marwa

    Katti, Dinesh

  • Performing Organizations:

    North Dakota State University, Fargo

    College of Engineering
    Department of Civil Engineering
    Fargo, ND  United States  58105
  • Principal Investigators:

    Yazdani, Frank

  • Start Date: 20001200
  • Expected Completion Date: 0
  • Actual Completion Date: 20030000
  • Source Data: RiP Project 11263

Subject/Index Terms

Filing Info

  • Accession Number: 01458562
  • Record Type: Research project
  • Source Agency: North Dakota Department of Transportation
  • Contract Numbers: NDSU 2000-01
  • Files: RiP, STATEDOT
  • Created Date: Jan 3 2013 12:45PM