DURABILITY OF CONCRETE BRIDGE DECKS, A COOPERATIVE STUDY. REPORT 1

In 1961 the Portland Cement Association, in cooperation with the Bureau of Public Roads and 12 state highway departments, undertook a comprehensive study of concrete bridge deck deterioration. This is the first of a contemplated series of six reports presenting the results of the study. It deals with a detailed investigation of 18 bridge decks in Kansas. The bridges were chosen to provide a wide range of factors, including type and severity of deterioration, bridge type, span length, location, date of construction, and volume of traffic. The report is divided into two parts. Part 1 discusses the observed occurrences of scaling, various types of cracking, and surface spalling based on the data contained in part 2. Recommendations leading toward the prevention of deterioration on future deck construction are also presented. Part 2 presents the detailed information accumulated during the Kansas investigation. This consists of observations made in the field, information obtained from the construction records, and laboratory studies of core samples. A total of 250 cores taken from the decks of these 18 bridges were examined in the Portland Cement Association and the Bureau of Public Roads laboratories. Linear traverse measurements of air content, high-pressure meter determinations of air content, chloride analyses, pulse velocity measurements, and detailed petrographic examinations of these cores are presented. The report contains illustrative photos made in the field and in the laboratory. The two most important findings resulting from this study are: (1) the nonuniformity of distribution of entrained air from top to bottom of bridge deck slabs, and (2) the effect of restraint to subsidence of the concrete by the top steel reinforcement.

  • Corporate Authors:

    Kansas Department of Transportation

    Docking State Office Building
    Topeka, KS  United States  66612

    Department of Commerce

    1401 Constitution Avenue, NW
    Washington, DC  United States  20230

    Portland Cement Association

    5420 Old Orchard Road
    Skokie, IL  United States  60077
  • Publication Date: 1965

Language

  • English

Media Info

  • Features: Figures; Tables;
  • Pagination: 132 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00793901
  • Record Type: Publication
  • Report/Paper Numbers: 1
  • Files: TRIS, STATEDOT
  • Created Date: Jun 19 2000 12:00AM