Guide to Cold Weather Concreting: Chapter 8 Protection Against Freezing for Structural Concrete

The American Concrete Institute (ACI, www.concrete.org) provides numerous, valuable resources on on cold weather concrete — concrete properties and the construction operations of mixing, transporting, and placing of the concrete materials in cold weather. One of the many resources is the On-Demand Course: Guide to Cold Weather Concreting: Chapter 8 Protection Against Freezing for Structural Concrete, developed by ACI Committee 306 – Cold Weather Concreting and approved by the ACI Committee 90 – Technical Activities Committee.

Based on Chapter 8 of 306R-16: Guide to Cold Weather Concreting, the online learning module addresses protection for structural concrete requiring construction supports. The on-demand course reviews the principle of the maturity method, testing techniques for strength and temperature, methods to increase early strength development, and duration of time for safe removal of formwork based on strength.

The four learning objectives of the On-Demand Course: Guide to Cold Weather Concreting: Chapter 8 Protection Against Freezing for Structural Concrete are to:

  1. Understand the concepts of concrete maturity and testing;
  2. Identify methods to determine in-place strength of concrete;
  3. Define when formwork can safely be removed, and;
  4. List the factors that influence strength development.

Keywords: accelerating admixtures; cold weather; compressive strength; construction; curing; formwork; freezing; heating; insulation; maturity; protection; temperature.

(Source: American Concrete Institutewww.concrete.org)

More in the next blog about construction operations and weather events…

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