Feasibility of Non-Proprietary Ultra-High Performance Concrete (UHPC) for use in Highway Bridges in Montana: Phase II Field Application

The overall objective of this research was to further develop and characterize an economical non-proprietary ultra high performance concrete (UHPC) made with materials readily available in Montana. Specifically, this research focused on (1) investigating the potential variability in performance related to differences in constituent materials, (2) investigating issues related to the field batching/mixing of these UHPC mixes, and (3) testing rebar bond strength and studying how this will affect requisite development lengths. Based on this research, it was determined that, while variations in the source of the constituent materials had some effects on performance, the effects were fairly minor, with all recorded flows and 28-day compressive strengths exceeding 6 inches and 16 ksi, respectively. Further, in regard to the effects of mixing/batching conditions, only temperature was observed to have a significant effect on performance, with flows and set times decreasing with increasing temperature. Regarding the pullout tests, all of the specimens that met the minimum embedment depth requirements specified by the FHWA yielded prior to concrete bond failure, indicating the suitability of these recommendations for the Montana UHPC developed in this research.

• Record URL:
  https://doi.org/10.21949/1518311
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/55808
• Corporate Authors:

  Western Transportation Institute

  Montana State University, Bozeman
  P.O. Box 174250
  Bozeman, MT  United States  59717-4250

  Montana Department of Transportation

  Research Programs
  Helena, MT  United States  59620

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Barry, Michael
  • 0000-0003-2134-9335
  • Scherr, Riley
  • Matteson, Kirsten
  • 0000-0001-9367-6867
• Publication Date: 2021-3

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 52p

Subject/Index Terms

• TRT Terms: Admixtures; Bridge construction; Compressive strength; Concrete bridges; Local materials; Tensile strength; Ultra high performance concrete
• Geographic Terms: Montana
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 01772104
• Record Type: Publication
• Report/Paper Numbers: FHWA/MT-21-002/9578-606, MDT Project #9578-606
• Contract Numbers: MSU G&C #4W7141
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: May 21 2021 10:57AM