Low Shrinkage Mix Designs to Reduce Early Cracking of Concrete Bridge Decks

Details

• Creators:
  Simonton, Eric ; Shearer, Christopher R
• Corporate Creators:
  South Dakota School of Mines and Technology
• Corporate Contributors:
  South Dakota. Department of Transportation. Office of Research ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Expansive concrete
  • Shrinkage
  • Drying
  • Mix design
  • Concrete
  • Bridge decks
• Publication/ Report Number:
  SD2018-04-F
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; South Dakota
• Edition:
  Final Report April 2019 – May 2021
• Corporate Publisher:
  South Dakota. Department of Transportation. Office of Research
• Abstract:
  Concrete bridge decks in South Dakota have reduced services lives due to shrinkage cracking. This study evaluated the effects of varying concrete mix design parameters on shrinkage performance. Tested mix design changes include aggregate type (limestone and quartzite) and gradations (ASTM C33, Tarantula Curve, and 0.45 Power Curve), supplementary cementitious materials (fly ash), cementitious content, water-to-cementitious ratio, internal curing using saturated lightweight aggregates (expanded shale), and shrinkage reducing admixtures. These changes were evaluated for their effect on the shrinkage of paste, mortar, and concrete as measured by ASTM C1698 (autogenous shrinkage), ASTM C157 (drying shrinkage), and ASTM C1581 (restrained drying shrinkage).
• Format:
  PDF
• Funding:
  311381
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/72480/dot_72480_DS1.pdf
• File Type:
  [PDF - 4.48 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:91cc6f5eeb0a4996c0d68990f05163b07595028d19c0b279ffcc66125ab9e36ea73040ac38c64f9fd16b2e91bec112eb1526f46e3bf6829ed367515fa3aa0b36