Design and performance of stay-in-place UHPC prefabricated panels for infrastructure construction.

Details

• Creators:
  Khayat, Kamal H. ; Meng, Weina
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Cast in place structures
  • Ultra high performance concrete
  • Bridge design
  • Cast in place concrete
  • Fiber reinforced polymers
  • Prefabricated bridges
  • Cost effectiveness
  • Durability
  • Greenhouse gases
  • Service life
• Publication/ Report Number:
  NUTC R320;Project #00040515
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  This project aims at designing a stay-in-place formwork system for cast-in-place bridge applications using ultra-high performance ; concrete (UHPC) that can be used in the permanent formwork construction. Such panels can be used as permanent formwork system ; that can exhibit extended service life given the high impermeability and resistance of the cover-crete to cracking, increase the cost-effectiveness, and decrease of deleterious materials in concrete, including chloride ions. The stay-in-place formwork can be used for ; new construction as well as in the rehabilitation of concrete infrastructure, including bridges. It is anticipated that this design concept ; will lead to substantial savings and reduced energy costs associated with the production, handling, and whole life performance of the ; cast concrete elements. ; The key characteristics and benefits of the proposed product are: (1) the units will be more durable and much lighter than current ; products (less than 25 kg per unit), light enough that one person can carry a single unit. (2) faster construction due to simplicity of use. ; (3) reduction in the volume of transport. (4) the units will be “lego-like”, in that they can easily be linked together in modular forms. ; (5) smooth surface finish that reduces the need for further surface work (that is, additional finishing). (6) environmentally ; advantageous structures; reduced carbon emissions compared to conventional on-site casting methods. (7) versatility regarding ; application, usage is not restricted to bridge columns but other elements, such as conventional wall structures. ; The pre-fabricated panels were made of UHPC reinforced with fibers, such as micro steel fibers or micro polyvinyl alcohol (PVA) ; fibers, and glass fiber reinforced polymer (GFRP) grids or carbon fiber reinforced polymer (CFRP) grids which can provide bi-directional reinforcement.
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• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27954/dot_27954_DS1.pdf
• File Type:
  [PDF - 6.29 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6e752a38d5481741dc8d6615e80988918dea19aab7890b08e5518e61bed5d4e96dd613a59d23bb7ca6139ee9440a19aa4e7609aad0a1d463dccf7c281242a931