High Performance Bridge Deck: Use of ASTM C 845 Type K Shrinkage Compensating Cement with Lightweight Aggregate for Optimized Internal Curing, Excellent Durability, and Performance Benefits

ASTM C 845 Type K Shrinkage Compensating Cement has been effective in reducing transverse cracking and corrosion of steel in concrete bridge decks on the Ohio Turnpike. Over 85 bridge deck installations over two consecutive construction seasons showed no cracking at annual year-end inspections. Most of these bridge decks were composite steel girder construction built during 1985 to 1990. Many recent concrete bridge decks have been built with "High Performance Concrete” with low performance results showing significant cracking between very low permeability silica fume ternary mixes with HRWR concrete. Very stiff concrete often results. A 15,000 yds3 project of 120 lb per ft3 lightweight aggregate concrete application of Shrinkage Compensating Concrete provided a different approach to the bridge deck durability and cracking issue. Decks were cast mainly on cast-in-place stay-in-place galvanized metal forms—except for a few places where conventional forming was used. Concrete was produced using presoaked lightweight aggregate and natural aggregate fines. The 715 lbs/yd3 cement factor mix with 5 to 7 % air content concrete was pumped. In the Cleveland, OH lakefront climate, this project displayed no visible reinforcing bar corrosion—and no transverse deck cracking on the steel girder composite structure internally reinforced with top and bottom longitudinal and transverse steel. Excellent performance was related to internal curing provided by the presoaked lightweight aggregate. This performance occurred because the bridge deck and steel girder expansion joints were allowed to slightly close during the moist cure period and later open during the shrinkage phase. This paper describes the action of these materials and provides petrographic results.

  • Supplemental Notes:
    • The title of this paper is listed in the Table of Contents on the CD ROM as High Performance Bridge Deck: The Use of ASTM C 845 Type K Shrinkage Compensating Cement with Lightweight Aggregate Concrete for Optimized Internal Curing, Excellent Durability, and Performance Benefits.
  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    National Concrete Bridge Council

    Portland Cement Association, 5420 Old Orchard Road
    Skokie, IL  United States  60077-1083

    Missouri Department of Transportation

    105 West Capitol Avenue
    Jefferson City, MO  United States  65102

    American Concrete Institute (ACI)

    38800 Country Club Drive
    Farmington Hills, MI  United States  48331
  • Authors:
    • Gulyas, Robert J
    • McCabe, Keith A
    • Katlin, John A
  • Conference:
  • Publication Date: 2008

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos;
  • Pagination: 7p
  • Monograph Title: HPC: Safe, Affordable, and Efficient

Subject/Index Terms

Filing Info

  • Accession Number: 01105249
  • Record Type: Publication
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jul 25 2008 10:57AM