OUT IN THE COLD : ACPA ANSWERS TOP QUESTIONS ABOUT HOW TO TREAT CONCRETE IN COLD TEMPERATURES

This article presents answers to most-asked questions about treating concrete in cold temperatures, and offers references to technical publications. Frost heave can be addressed by removing frost- susceptible soil; adding modifiers; maintaining good drainage and cross hauling to eliminate differentials in susceptibility. Concrete pavement should not be treated with deicing salts until it has had a chance to air dry, has enough air entrainment, and has enough curing. Pavement surface color is not an important element in the speed with which snow and ice on the pavement melts. Concrete maturity should be closely monitored to know the mixture's strength at the earliest possible time. Cement gives off most of its heat in the first three days, but it must be protected from freezing with insulating blankets, mats or foam, which allows hydration to happen more rapidly. It should be protected if the air temperature drops below 40 degrees F in the three days following paving. It should also be allowed to cool gradually for greatest strength. Studded tires are only good for hard-paced snow or ice. On clean pavement hey only harm the surface. Bans are the best protection. Diamond grinding can remove the pavement around the worn wheelpaths, or an abrasion resistant mixture with a high quality of aggregate can be poured.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/11660022
• Corporate Authors:

  Scranton Gillette Communications

  380 E Northwest Highway, Suite 200
  Des Planes, IL  United States  60016-2282
• Authors:
  • Ayers, M
  • Waalkes, S
• Publication Date: 2003-2

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 30-32
• Serial:
  • Roads & Bridges
  • Volume: 41
  • Issue Number: 2
  • Publisher: Scranton Gillette Communications
  • ISSN: 8750-9229
  • Serial URL: http://www.roadsbridges.com/rb/

Subject/Index Terms

• TRT Terms: Cold weather construction; Concrete curing; Concrete hardening; Deicing; Frost heaving; Studded tires
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00942669
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Jun 2 2003 12:00AM