Report A : self-consolidating concrete (SCC) for infrastructure elements - shear characteristics.

Details

• Corporate Creators:
  Missouri University of Science and Technology
• Subject/TRT Terms:
  Aggregates (Building Materials) Coarse Aggregates Compressive Strength Digital Images Interlocking Aggregates Mix Design Precast Concrete Self-consolidating Concrete--Compression Testing Self Compacting Concrete Shear (Mechanics) Shear Strength Shear Tests

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• Publication/ Report Number:
  Project TRyy1103 ; cmr 13-003
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Edition:
  Final report.
• Corporate Publisher:
  Missouri. Department of Transportation
• Abstract:
  Because of its unique ability to maintain high flow-ability and remain homogeneous,
  
  self-consolidating concrete (SCC) has the potential to significantly reduce the costs
  
  associated with civil infrastructure; however, the use of higher paste and lower coarse
  
  aggregate volumes than non-SCC concretes raises concerns about the structural implications
  
  of using SCC. Of particular concern is the effect of concrete compressive strength, and
  
  aggregate type, shape, and content level on shear strength of SCC mixes. This research
  
  focused on the components that contribute to the concrete’s ability to provide shear
  
  resistance, in particular, shear provided by aggregate interlock. Variables investigated by
  
  push-off tests to determine the shear contribution from aggregate interlock included concrete
  
  compressive strength (6 and 10 ksi [41.3 and 68.9 MPa] target), coarse aggregate type
  
  (limestone and river gravel), and volumetric content level of the coarse aggregate portion
  
  (36%, 48%, 58%, and 60%). Post-failure digital imaging software was used to confirm fresh
  
  concrete parameters in the hardened state as well as check for variability and the impact on
  
  shear. Additional attention was given to the global contributions of shear by the concrete in
  
  larger scaled tests of pre-stressed beam members. The results were used to assess the
  
  appropriateness of designing Missouri Infrastructure elements using the current AASHTO
  
  LRFD Bridge Design Specification for shear and while using typical Missouri SCC batch
  
  proportions and materials.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:79c368ab6230df130974025c0917a28d5bdf35c6e41691c67868a841cdcc47f5f741ffb4bf2fe085a1ae482f5a05d3556c360e2ddcf24aaf8ec2651a7260f914
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25607/dot_25607_DS1.pdf
• File Type:
  [PDF - 3.99 MB ]