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Self-Consolidating Concrete for Precast, Prestressed Concrete Bridge Elements (2009) / Chapter Skim
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Summary
Pages 1-4

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From page 1...
... Such guidelines will provide highway agencies with the information necessary for considering SCC mixtures that are expected to produce a uniform product, expedite construction, and yield economic and other benefits. To accomplish this objective, the research included work to: • Develop material properties and performance criteria for SCC used for precast, prestressed concrete bridge elements; • Evaluate key engineering properties, durability characteristics, and structural performance of such concrete; and • Propose relevant changes to AASHTO LRFD Specifications.
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From page 2...
... The study included 16 non–air-entrained SCC mixtures and enabled the modeling of plastic viscosity, thixotropy, filling ability, passing ability, filling capacity, static stability, formwork pressure, setting time, compressive and flexural strengths, elastic modulus, autogenous shrinkage, drying shrinkage, and creep. The air-void system and frost durability were evaluated for selected mixtures.
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From page 3...
... can lead to larger prestressing losses and smaller cambers. SCC and HPC girders of similar compressive strengths exhibit similar transfer lengths, flexural cracking moments, and cracking shears.
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From page 4...
... Guidelines for material selection and mixture proportioning of SCC for precast, prestressed applications are provided. This information pertains to the effect of w/cm, binder type, and maximum size of aggregate (MSA)
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Key Terms

  • bridge elements
  • drying shrinkage
  • filling capacity
  • slump flow
  • static stability

  • prestressed concrete
  • aashto lrfd
  • lrfd specifications
  • concrete bridge
  • compressive strength

  • type iii
  • iii cement
  • prestressed bridge
  • prestressed aashto
  • filling ability

  • prestressed applications
  • aashto girders
  • hpc girders
  • key engineering
  • identified test

  • strength development
  • fly ash
  • mix design
  • engineering properties
  • passing ability

  • elastic modulus
  • ash replacement
  • plastic viscosity
  • surface settlement
  • flow values


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