2290 Bond Behavior of Epoxy Coated Reinforcement Bars in Non-Proprietary UHPC

This project will develop non-proprietary ultra-high performance concrete (UHPC) mixtures using Oklahoma Department of Transportation (ODOT) specified materials along with comparisons with other non-proprietary UHPC mixtures developed for bridge deck applications. Mixtures will be used to construct pull-out and beam-splice specimens for testing to investigate the effects of bar size and spacing, splice/embedment length, cover, fiber content, compressive strength, and bar coatings, including a new textured coating, on the bond strength between reinforcing bars and non-proprietary UHPC mixtures. A performance-based tension test using a notched specimen will be evaluated to determine applicability for use in design. Test results will be used to develop guidelines for splice design, with special emphasis on using UHPC in closure strips between reinforced concrete members.

Language

• English

Project

• Status: Completed
• Funding: $256,000
• Contract Numbers:

  2290

• Sponsor Organizations:

  Oklahoma Department of Transportation

  200 NE 21st Street
  Oklahoma City, OK  United States  73105
• Managing Organizations:

  Oklahoma Department of Transportation

  200 NE 21st Street
  Oklahoma City, OK  United States  73105
• Project Managers:

  Stephens, Teresa

  Peters, Walt

• Performing Organizations:

  University of Kansas Center for Research, Incorporated

  2291 Irving Hill Drive, Campus West
  Lawrence, KS  United States  66045
• Principal Investigators:

  Darwin, David

• Start Date: 20211001
• Expected Completion Date: 20230930
• Actual Completion Date: 20230930

Subject/Index Terms

• TRT Terms: Bond strength (Materials); Bridge decks; Epoxy coatings; Reinforcing bars; Splicing; Tension tests; Ultra high performance concrete
• Subject Areas: Bridges and other structures; Construction; Highways; Materials;

Filing Info

• Accession Number: 01829721
• Record Type: Research project
• Source Agency: Oklahoma Department of Transportation
• Contract Numbers: 2290
• Files: RIP, STATEDOT
• Created Date: Dec 9 2021 4:58PM