Service Life and Cost Comparisons for Four Types of CDOT Bridge Decks

Details

• Creators:
  Hearn, George ; Xi, Yunping
• Corporate Creators:
  University of Colorado. Dept. of Civil Engineering
• Corporate Contributors:
  Colorado Department of Transportation. Office of Applied Research ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Service life
  • Life cycle costing
  • Bridge decks
  • Epoxy coatings
  • Performance
  • Reinforced concrete
  • Reinforcing bars
  • Waterproofing materials
  • Annualized costs
• Publication/ Report Number:
  CDOT-2007-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report: Sept. 1, 2005 to Nov. 30, 2006
• Corporate Publisher:
  Colorado Department of Transportation. Applied Research & Innovations Branch
• Abstract:
  This study examines costs and performance of four types of reinforced concrete bridge decks currently in service on Colorado DOT(CDOT) highway bridges. These four types allow a comparison between bare decks and decks with waterproofing membranes, and between decks with uncoated steel reinforcement and decks with epoxy-coated steel reinforcement. Histories of deck condition ratings are used to estimate deck service life and to generate population models of service life. Decks with waterproofing membrane have longer service life than bare decks. Condition data indicate longer service life for decks with uncoated reinforcing steel, but this outcome may be due to the limited extent of condition data for decks having epoxy-coated reinforcement. Costs for bridge decks are evaluated as initial costs, present values, and annualized costs. By all present value and annualized cost measures, decks with waterproofing membrane are least expensive. This outcome is not sensitive to the value of the discount factor.
• Format:
  PDF
• Funding:
  PG HAA 05HQ257
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93006/dot_93006_DS1.pdf
• File Type:
  [PDF - 607.73 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:caadc6ce3cdb2ecaca1e464db34df6f6fcb1cda0a26234a2c658b6e7493be6d70229058bb76ec7c4c9f376d3499e7482dc297806784d52fa6f8b1767467baee2