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Evaluation of Ultra-High Performance Concrete Connections (2022) / Chapter Skim
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Section 5 - Business Case for and Barriers to Adoption of UHPC-C
Pages 16-18

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From page 16...
... For other deck connections, however, interviewees indicated that the performance of CC-C or steel bolts is generally suffi­ cient, reducing the relative advantage of UHPC-C. The main alternatives to using prefabricated deck slabs are to pour and field-set a solid deck in place or to use lateral slides, whereby a solid deck is poured and field-set in an area adjacent to the bridge being constructed and then slid into place.
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From page 17...
... Interview respondents noted similar, although admittedly hyperbolic, sentiments that UHPC "lasts forever" and will "never" require maintenance.2 Inter­viewees also indicated that UHPC performance attributes enable up to a 50% reduction in material requirements compared with conventional concrete. For deck connection applications, the material reduction can reduce spatial requirements for construction zones and increase space allotted to traffic, thereby improving work-zone safety.
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From page 18...
... Yet, the key barrier to developing generic UHPC mixes, interviewees said, is a lack of trialability. Stakeholder interviews highlighted the need for additional standards on baseline properties and testing for generic UHPC mixes to help increase trialability -- and thereby trust in the ability of these mixes to compete with proprietary blends.
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Key Terms

  • life span
  • stakeholder interviews
  • proprietary uhpc
  • field application
  • application methods

  • interviews indicated
  • generic uhpc
  • uhpc suppliers
  • solid deck
  • uhpc mixes

  • stakeholders indicated
  • material requirements
  • construction companies
  • generic mixes
  • suppliers require

  • increased strength
  • relative advantage
  • quality management
  • potential barrier
  • bridge components

  • uhpc compared
  • field conditions
  • uhpc application
  • encouraging field
  • uhpc material

  • uhpc performance
  • proper uhpc
  • uhpc cures
  • increased life
  • life entails


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