Utilizing a Particle-Packing Approach for an Illinois-Specific, Nonproprietary, Low-Shrinkage UHPC

Details

• Creators:
  Baten, Bayezid ; Gombeda, Matthew J ; Garg, Nishant
• Corporate Creators:
  Illinois Center for Transportation ; University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Illinois Department of Transportation. Bureau of Research ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Admixtures Building Materials Compressive Strength Costs Local Materials Mix Design Packing Factor Multi-Binder Packing Models Particle Packing Self-Flowability Ultra High Performance Concrete

  More +
• Publication/ Report Number:
  FHWA-ICT-24-018;ICT-24-021;UILU-2024-2021
• DOI:
  https://doi.org/10.36501/0197-9191/24-021
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Illinois
• Edition:
  Final Report 7/1/21–9/30/24
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Ultra-high-performance concrete (UHPC) represents the next generation of concrete, with a strength 3-4 times greater than traditional concrete (100-120 MPa as opposed to 30-40 MPa). However, most of the commercial UHPC mixes are proprietary and expensive. In this project, we document the development of nonproprietary, cost-effective UHPC mixes primarily using locally sourced or pre-qualified materials in Illinois. The research utilizes the modified Anderson and Andreasen packing model to establish a new parameter: “packing factor” that has a significant influence on the design and performance of multi-binder UHPC mixes. Initially, 19 UHPC mixes without fibers are analyzed for their rheological, mechanical, and durability properties, demonstrating promising results. Specifically, we obtain self-flowing capabilities with minimal HRWR usage (<1% by wt.%), a turnover time of 7–10 minutes, and a significant reduction in cement content (47% Type IL and the remaining 53% SCMs by volume) while maintaining superior compressive strengths (~120–150 MPa, 17.2–21.8 ksi @ 28 days). Then, optimal mixes, particularly M18 and M19, are evaluated with fibers, achieving compressive strengths exceeding 150 MPa (21.8 ksi) at 28 days and exhibiting open porosity under 2%, and have shrinkage rates below the target threshold (<800μξ @ 91 days). Finally, effective particle packing resulted in UHPC mixes costs of ~$400/m3 (~$308/yd3) without steel fibers and ~$590/m3 (~$454/yd3) with steel fibers, enabling cost-effective, optimal UHPC for deployment by the Illinois Department of Transportation.
• Format:
  PDF
• Funding:
  R27-232
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ae7cea808b32a8e2af52817d52ccd85f3e68a582127826e3614d5a012e08c6b828188589530eeadb230a9c25d122f0101f6c341460169d612bb9733439874817
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/77603/dot_77603_DS1.pdf
• File Type:
  [PDF - 14.72 MB ]