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SURREY, BC (August 1st 2002) – Pouring concrete on
hot, dry ground can lead to rapid evaporation and wicking of water, with
insufficient moisture left in the concrete for proper hydration. The use
of a footing membrane prevents ALL desiccation through the ground and
sides of the footing formwork.
 Curing is the maintenance of a satisfactory moisture content in concrete for a period of time so that proper hydration can occur and the desired properties of strength and durability are achieved. If concrete is poured on hot, dry ground, water required for the hydration process may not be present. This will lead to a significant reduction in strength and durability. Plastic shrinking cracks may also be induced.
When the rate of evaporation or absorption of water exceeds 0.2 pounds per square foot per hour, precautionary measures are almost mandatory[1].
 "Fastfoot®
membrane eliminates all evaporation and absorption of water from the sides and bottom of the footing form”, said Andrew Vizer,
avizer@cement.ca, Regional Structural Engineer with the Cement Association of Canada. "This assists the curing process, producing a stronger, more durable concrete.”
To obtain the report on Hot Weather Curing of Concrete (Chapters 12, 13 of “Design and Control of Concrete Mixtures”)
Contact:
The Portland Cement Association, www.cement.org
Phone (847) 972-9044.
For information on fabric forming please contact:
Richard Fearn, President and CEO
FAB-FORM INDUSTRIES LTD.
Email: rfearn@fab-form.com
[1] From “Design and Control of Concrete Mixtures” (EB001.14) Chapters 12 and 13, Portland Cement Association.
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