Quantifying the Duration of the Corrosion Propagation Stage in Stainless Steel Reinforcement

Details

• Creators:
  Orozco Martinez, Nelly S ; Saire Yanez, Julio ; Alexander, Christopher L ; Mullins, Gray
• Corporate Creators:
  University of South Florida. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Florida. Department of Transportation
• Subject/TRT Terms:
  • Concrete structures
  • Corrosion
  • Corrosion resistance
  • Durability
  • Reinforced concrete
  • Service life
  • Stainless steel
  • Structural health monitoring
  • Limit state design
  • Corrosion rate
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida ; United States
• Edition:
  Final Report 2/5/18 – 12/30/20
• Corporate Publisher:
  University of South Florida. Department of Civil and Environmental Engineering
• Abstract:
  Present durability projections for concrete reinforced with stainless steel (SS) are limited in that, while accounting for a substantial increase in the corrosion initiation stage (CIS) duration, credit tends not to be given for any added corrosion propagation stage (CPS) duration over that of carbon steel (CS). The objectives of this work were to: (1) develop a rational quantitative estimate of the duration of the corrosion propagation stage of concrete reinforced with SS in current and anticipated FDOT practice, establishing alternative corrosion monitoring methods if needed; (2) apply the findings as inputs to damage function models to determine how any resulting added durability credit can be used to optimize materials and design options. Experiments were performed to obtain estimates of corrosion rates, corrosion morphology, and the critical corrosion penetration. The results were then used to suggest a service limit state that accounted for the mechanical properties of the steel. The results were incorporated into durability projections to provide recommendations of concrete cover to be used based on service conditions.
• Format:
  PDF
• Funding:
  BDV25-977-56
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/59179/dot_59179_DS1.pdf
• File Type:
  [PDF - 4.12 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:ce1995596fab2fba19477e9617edb4558daf7bbe343e43f02b7b7c2620d02d4d