Evaluation of Silica Fume in Bridge Deck Concrete Overlays

Details

• Creators:
  Montney, Rodney A. ; Wojakowski, John
• Corporate Creators:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge decks
  • Chlorides
  • Concrete bridges
  • Concrete overlays
  • Corrosion
  • Cracking
  • Silica fume
  • Permeability
  • Reinforcement (Engineering)
  • Bridges and other structures
  More +
• Publication/ Report Number:
  FHWA-KS-07-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas ; United States
• TRIS Online Accession Number:
  01055159
• Edition:
  Final Report 1990-2005
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  Chlorides that are used for ice control on the Kansas highways cause serious corrosion of the reinforcing steel in concrete bridges. The Kansas Department of Transportation (KDOT) has tried various methods to prevent chloride from penetrating the concrete on bridge decks. In 1990 two silica fume bridge deck overlays were placed on I-470 in Shawnee County along side of two control bridges. While the silica fume overlays have successfully inhibited the chloride penetration of the concrete, extensive cracking occurred in the silica fume overlays. Most of the cracking occurred in the first five years of the bridge deck life. KDOT has made significant changes in curing methods since 1990 to control the early cracking in the silica fume overlays.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/37762/dot_37762_DS1.pdf
• File Type:
  [PDF - 410.72 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:883f8bdeacff4677595c173981ec5d1f7dc45903dcd19b55ad6f24054ba0d4d9