Modeling reinforced concrete durability.

Details

• Creators:
  Sánchez, Andrea N. ; Sagüés, Alberto A.
• Corporate Creators:
  University of South Florida. Dept. of Civil and Environmental Engineering
• Subject/TRT Terms:
  • Reinforced concrete
  • Durability
  • Reinforcing steel
  • Reinforcing bars
  • Corrosion protection
  • Bridge design
  • Chloride content
  • Mathematical models
  • Mathematical prediction
• Publication/ Report Number:
  BDK84-977-09
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Corporate Publisher:
  Florida. Dept. of Transportation
• Abstract:
  This project developed a next-generation modeling approach for projecting the extent of ; reinforced concrete corrosion-related damage, customized for new and existing Florida Department of ; Transportation bridges and suitable for adapting to broader use within the FDOT. The modeling ; approach incorporates a series of advanced features that include in the first place a probabilistic ; treatment of the damage prediction calculations with statistical variability in surface concentration, ; concrete cover, and chloride diffusion coefficient. Additionally, the model incorporates the effect of ; steel potential on corrosion threshold by the use of a potential-dependent threshold correction function. ; Additional features are type of rebar material, geometric aggravation effects from rebar presence, and ; corners and curvature in the concrete surface. The model has also functionality for variability in ; environmental aggressiveness conditions as a function of elevation above water and for location of ; structural components in various environments in the same bridge. Experiments were conducted to ; resolve shortages in potential-dependent threshold data. The results produced improved input ; parameters for the model calculations that developed the threshold-effect correction function.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27459/dot_27459_DS1.pdf
• File Type:
  [PDF - 1.30 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e8379bee8d4e9458a92ea3640778cbfbee0ba9ec344b1faf3d8d9daa241aa049