Concrete deck material properties : final report.

Details

• Alternative Title:
  Cornell University Research Consortium
• Creators:
  Subramaniam, Kolluru V. ; Agrawal., Anil
• Corporate Creators:
  City University of New York. City College. Department of Civil Engineering
• Corporate Contributors:
  New York (State). Dept. of Transportation
• Subject/TRT Terms:
  Aggregate Mixtures Concrete Concrete--Cracking Cracking Pavements, Asphalt Concrete--Cracking Shrinkage
• Publication/ Report Number:
  C-02-03
• Resource Type:
  Tech Report
• Geographical Coverage:
  New York
• Edition:
  Final report
• Corporate Publisher:
  New York (State). Dept. of Transportation
• Abstract:
  The two-fold focus of this study was (a) to develop an understanding of the mechanisms responsible for causing
  
  cracking in the concrete; and (b) to study the influence of the local materials on the performance of NYSDOT’s HP
  
  concrete mixture. Recommendations for minimizing the premature cracking in HP concrete decks related to restrained
  
  volumetric contraction are developed from the results of this investigation. It is important to reduce the total
  
  temperature rise and the temperature gradient across the steel girder to minimize the level of tensile stress in concrete
  
  in the first few days after casting, while the concrete goes through the heating and cooling produced by hydration heat.
  
  The local materials for use in HP concrete should be carefully evaluated. The type of coarse aggregate used in the
  
  mixture produces significant differences in the strength and elastic modulus of concrete. Differences in cementitious
  
  material contribute to significant differences in autogenous and drying shrinkage. Recommendations pertaining to
  
  cementitious materials are: (a) If silica fume is used, it should only to be added separately to the mix, unless the
  
  reactivity of blended silica fume is established and found comparable to silica fume addition; (b)Only the use of Type
  
  I/II or Type II cement should be permitted; and (c) When ground granulated blast furnace slag is used, it should be
  
  evaluated to ensure that it does not provide high early reactivity.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:ea15379897761e84586c560c78cdb603462be920f5d899cc4470d9f768a98535
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16806/dot_16806_DS1.pdf
• File Type:
  [PDF - 4.04 MB ]