PREVENTION OF CRACKS IN CONCRETE BRIDGE DECKS: REPORT ON OBSERVATIONS OF BRIDGE DECK CONSTRUCTION AND CONCRETE SHRINKAGE MEASUREMENTS IN THE FIELD

Transverse cracking in newly constructed concrete bridge decks is a concern in Pennsylvania. This project observed deck construction operations and identified construction factors with potential to increase concrete thermal and/or drying shrinkage and cause cracking. During the observations, concrete curing temperature was measured to determine thermal shrinkage. Also, concrete was sampled and tested to determine drying shrinkage. The shrinkage information led to prediction of cracking in each construction site. Follow-up visits to constructed bridge decks verified the prediction. Consequently, recommendations were made on maximum allowable thermal and drying shrinkage to minimize cracking.

  • Corporate Authors:

    Smith (Wilbur) and Associates

    2921 Telstar Court
    Falls Church, VA  United States  20590

    Pennsylvania Department of Transportation

    Office of Research and Special Studies, P.O. Box 2926
    Harrisburg, PA  United States  17120

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Babaei, K
    • Purvis, R L
  • Publication Date: 1995-8

Language

  • English

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: 183 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00720201
  • Record Type: Publication
  • Report/Paper Numbers: PA-FHWA-95-002+89-01
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: Apr 17 1996 12:00AM