In an effort to develop an improved contraction joint for portland cement concrete pavements, factors which should improve joint performance were isolated and installed in a section of new pavement, and the movement, cracking pattern and spalling of the pavement were monitored. The factors considered of prime importance are: stabilized subbase, coating of dowel bars, variation of joint spacing, configuration of the saw cut, and use of skewed joints. Details are given of the test pavement, the location and type of different variables, and the measurements that were made. Observations related to horizontal movements, vertical deflections, pavement cracking and bottom spalling are detailed. It is recommended that the delta shaped spalling at the junction of the transverse contraction joint and the longitudinal shoulder joint might be prevented by running preformed joint seal down the side of the slab. Since most of the 40 foot slabs have at least a midslab crack, it is recommended that an effort be made to determine if these are "working cracks"; the information could determine the question of shortening the existing 40-foot joint spacing.

  • Supplemental Notes:
    • Proceedings of the twenty-ninth annual Ohio Transportation Engineering Conference, conducted by the Department of Civil Engineering, in cooperation with the Ohio Department of Transportation.
  • Corporate Authors:

    Ohio State University, Columbus

    Department of Civil Engineering
    Hitchcock Hall 470
    Columbus, OH  United States  43210
  • Authors:
    • Minkarah, I
    • Cook, J P
  • Publication Date: 1975-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00127889
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM