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The general requirements for producing satisfactory concrete during cold weather
are discussed, and methods for satisfying these requirements are described. One
of the objectives of cold weather concreting practice is to provide protection
of the concrete at early ages to prevent damage from freezing. For many
structural concretes, protection considerably in excess of that required to
prevent damage by early freezing is needed to assure development of adequate
strength. The following items are discussed in the report: recommended
temperature of concrete, temperature records, temperature of materials,
preparations prior to placement, duration of protection period, methods for
determining in-place strength, form removal, protective insulating covers,
heated enclosures, curing methods, and accelerating admixtures. References are
included that provide supplementary data on the effects of curing temperature on
concrete strength. 23 pp.
ACI 306R-88: Cold Weather Concreting (Reapproved 2002)
