CONTINUOUSLY REINFORCED CONCRETE PAVEMENT OVERLAY OF EXISTING PORTLAND CEMENT CONCRETE OVERLAY

The upgrading is reported of a 2-lane 20-foot wide (9" - 6" - 9") thick portland cement concrete roadway to a 4-lane divided section having 24 foot wide roadways. The continuously reinforced concrete section provided for 35 No. 5 longitudinal bars in the -inch thick section and 39 No.5 longitudinal bars in the 8-inch thick section. No. 4 transverse bars spaced at 30-inch 3-c were specified. The longitudinal steel was high strength grade. The evaluation of the center of the longitudinal steel is shown as T/2 + 1/2 from the subgrade with tolerance of + or - 1/2-inch. Observations related to cracking and pumping joints are recorded. Observations lead to the opinion that overlay of concrete with continuously reinforced concrete is entirely satisfactory and practical in areas where the use of salt for snow and ice removal is low.

  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Stephenson, E L
  • Publication Date: 1976-4

Media Info

  • Features: Photos;
  • Pagination: p. 90-93
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00149798
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Apr 13 1977 12:00AM