CONTROL OF PLASTIC SHRINKAGE CRACKING IN COLD WEATHER

A study is reported which found that freezing weather admixture can reduce plastic shrinkage cracking by reducing the temperature differential between concrete and air. The study attempted to determine if, in fact, an increase in the difference between the ambient temperature and that of the concrete can result in a greater rate of evaporation and increase in shrinkage cracking. Details of the laboratory study which was designed to simulate typical cold weather concreting conditions are described, and the results are presented and discussed. It was found that the addition of the freezing weather admixure protected the mortar specimens from freezing. Conversely, plain mortar specimens froze after 24 hours in a 30 F environment.

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• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Senbetta, E
  • Bury, M A
• Publication Date: 1991-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 49-53
• Serial:
  • Concrete International
  • Volume: 13
  • Issue Number: 3
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0162-4075

Subject/Index Terms

• TRT Terms: Admixtures; Cold weather construction; Concrete; Concrete construction; Cracking; Durability; Freeze thaw durability; Shrinkage; Temperature
• Uncontrolled Terms: Concrete cracking
• Old TRIS Terms: Concrete shrinkage
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00603360
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 28 1991 12:00AM