Performance evaluation of one coat systems for new steel bridges.

Details

• Creators:
  Yao, Yuan ; Kodumuri, Pradeep ; Lee, Seung-Kyoung
• Corporate Creators:
  SES Group and Associates ; Rutgers University. Center for Advanced Infrastructure and Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
• Subject/TRT Terms:
  • Steel bridges
  • Corrosion protection
  • Coatings
  • Protective coatings
  • Accelerated tests
  • One-coat
  • Two-coat
  • Three-coat
  • Steel bridge coatings
  • Corrosion protection
  More +
• Publication/ Report Number:
  FHWA-HRT-11-046
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report.
• Corporate Publisher:
  Turner-Fairbank Highway Research Center
• Abstract:
  In an effort to address cost issues associated with shop application of conventional three-coat systems, the Federal ; Highway Administration completed a study to investigate the performance of eight one-coat systems and two control ; coatings for corrosion protection of highway bridges. Based on prior performance, a three-coat system and a two-coat ; system were selected as the control coating systems. The performance of all coating systems was evaluated under ; accelerated laboratory and outdoor exposure conditions. Accelerated testing was performed in the laboratory for ; 6,840 h. Natural weathering exposure was performed in the outdoor environment for 18 months and at a marine ; exposure site for 24 months. A calcium sulfonate alkyd coating system was found to perform equally in comparison ; with the three-coat system; however, curing was a major concern. Regression analysis was used to identify correlations ; between color, gloss, adhesion strength, and coating defects for one-coat systems
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24981/dot_24981_DS1.pdf
• File Type:
  [PDF - 3.09 MB]
• Collection(s):
  Federal Highway Administration ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2cffcd76fc3fc22096826f296b90f13a495defd089b7771b091f0d0a9548dfb638ef0e859713bebba466d90d0743a68fd64ff5e689574cd085ad12d275063531