Evaluation of grit-impregnated, epoxy coated prestressing strand on South Slough (Charleston) Bridge : final report.

Details

• Alternative Title:
  Evaluation of grit-impregnated, epoxy coated prestressing strand on South Slough (Charleston) Bridge.
• Creators:
  Laylor, H. Martin
• Corporate Creators:
  Oregon. Dept. of Transportation. Research Unit
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge construction
  • Prestressed concrete bridges
  • Epoxy coatings
  • Grits
  • Concrete structures
  • Cracking
  • Curvature
  • Bonding
  • Pressing
  • epoxy coated
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Corporate Publisher:
  Oregon. Dept. of Transportation. Research Unit
• Abstract:
  The use of grit-impregnated, epoxy coated prestressing strand is a relatively new design strategy being used for corrosion abatement on new concrete structures. This application was chosen for the South Slough (Charleston) structure because it subject to a corrosive environment created by the salt in the marine air. Findings from the evaluation of revealed that: 1) The coated strand was abrasion resistant and that normal handling during fabrication did not damage the coating, 2) The strands that were monitored did not display significant creep, 3) Camber measurements appear normal, showing good bonding, and 4) No cracking of the web or bottom flange was observed. The use of epoxy coated prestressing strand for beams in aggressive cloride-rich environments is recommended as "permitted alternative".
• Format:
  PDF
• Funding:
  Experimental Features Project OR 89-06
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22981/dot_22981_DS1.pdf
• File Type:
  [PDF - 816.43 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:91b8f326d097482112adf3eedc312a0be3e286b1cd01b119790b3e8feac527472ab097a5ae043aaff8594ffe5e92b9e2405fa1b785e4233532672428cbc6bd02