Sustainable, Rapid Repair Utilizing Advanced Cementitious Materials

Durability and resilience of a structure are typically considered separately, as they address structural performance under different types of loads. A systematic framework for combined durability-resilience assessment of a reinforced-concrete (RC) bridge column is presented in this article. Corrosion of steel reinforcement is the main deterioration mechanism considered for durability evaluation, and earthquakes are assumed to be the primary hazard for resilience assessment. An example bridge column with two types of cover materials – conventional concrete and ductile fiber-reinforced concrete – is considered in this study. The ductile fiber-reinforced concrete provides better durability than the conventional concrete, resulting in lower rebar mass loss at a given time. Fick’s second law of diffusion is used to model the corrosion initiation phase. A pitting corrosion model, accounting for the effects of cracking on the corrosion rate, is considered for the corrosion propagation phase. Seismic fragility curves are constructed by nonlinear dynamic analysis, incorporating the rebar mass loss, at discrete times during the life span of the bridge. The results indicate that corrosion of reinforcement increases the vulnerability of the bridge column to seismic hazard. Furthermore, better durability provided by the ductile fiber-reinforced concrete cover leads to improved seismic resilience.

• Dataset URL:
  https://doi.org/10.7910/DVN/FTNV5O
• Record URL:
  https://cait.rutgers.edu/wp-content/uploads/2019/02/cait-utc-reg-2b-final_rev.pdf
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/60455
• Dataset URL:
  https://rosap.ntl.bts.gov/view/dot/61978
• Supplemental Notes:
  • Cover title: Sustainable, Rapid Repair Utilizing Advanced Cementitious Materials. This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program. Supporting datasets available at: https://doi.org/10.7910/DVN/FTNV5O
• Corporate Authors:

  State University of New York, Buffalo

  Buffalo, NY  United States 

  Center for Advanced Infrastructure and Transportation

  Rutgers University
  100 Brett Road
  Piscataway, NJ  United States  08854-8058

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Ranade, Ravi
  • 0000-0001-6030-8371
  • Okumus, Pinar
  • 0000-0002-2197-3261
  • Wang, Hanmin
  • 0000-0001-5834-1930
• Publication Date: 2019-10-16

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 31p

Subject/Index Terms

• TRT Terms: Columns; Corrosion; Disaster resilience; Durability; Earthquake resistant design; Reinforced concrete bridges
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01788898
• Record Type: Publication
• Report/Paper Numbers: CAIT-UTC-REG 2B
• Contract Numbers: 69A3551847102
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Nov 19 2021 3:12PM