Feasibility Analysis of Ultra High Performance Concrete for Prestressed Concrete Bridge Applications - Phase IV

Details

• Creators:
  Weldon, Brad D. ; Jáuregui, David V. ; Newtson, Craig M.
• Corporate Creators:
  New Mexico State University
• Corporate Contributors:
  New Mexico. Department of Transportation. Research Bureau ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Bridge Design Feasibility Analysis Prestressed Concrete Bridges Properties Of Materials Ultra High Performance Concrete
• Publication/ Report Number:
  NM09MSC-01
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; New Mexico
• Edition:
  Final Report July 1 – May 2022
• Corporate Publisher:
  New Mexico. Department of Transportation
• Abstract:
  Phase IV was a continuation of a project to implement Ultra High Performance Concrete (UHPC) in precast, prestressed bridge girders in New Mexico. In Phase I of this research, case studies were conducted to investigate the advantages of implementing UHPC in bridge superstructure design. Due to the benefits that UHPC offers, this feasibility study resulted in recommendations to move forward with the development of mixture proportions for UHPC produced from materials local to New Mexico (Phase II). The UHPC mixture proportions developed in Phase II incorporated fine angular sand with a No. 4 top size, silica fume, fly ash, and elevated curing temperatures for both wet and dry cure periods. These mixture proportions and curing practices were optimized to produce UHPC that is economical and producible in New Mexico for implementation into prestressed concrete bridge design. Additionally, the durability of the optimized mixture for resistance to alkali-silica reaction, freezing and thawing, and delayed ettringite formation was established and the results demonstrate that the UHPC has excellent durability properties. Phase III included investigations on the creep and shrinkage behavior of these UHPC mixture proportions as well as conducting full scale flexural tests on UHPC bridge girders. UHPC using local materials was introduced into a local precast plant and Special Provisions were developed for casting UHPC girders. Bridge 9706 was recently constructed and incorporated the use of UHPC. In the current phase of the research, Bridge 9706 will be load tested and monitored to investigate the performance of UHPC under loads. Using the results of the load tests, an analytical model will be developed and used to further investigate the bridge behavior under different loading scenarios. Additional uses of UHPC will be investigated, including field studies, and the mixture proportions will be further optimized. Finally, to disseminate the knowledge base of UHPC to a wide community, a UHPC Symposium was held.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0cbe0396cbffbf898e2a9ed4744641f458e1939a6775c60633fe2ec5e3b51efd3aba916dc364cb443d4fb5d0ce044fbfa627e316b2e1c25a1c8bb072db4b0506
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/87089/dot_87089_DS1.pdf
• File Type:
  [PDF - 29.95 MB ]