LIGHTWEIGHT SINGLE-USE CONCRETE CURING SYSTEM
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United States of America Patent
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Issued Date -
Oct 23, 2008
app pub date -
Jun 8, 2006
filing date -
Jun 8, 2005
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Abstract
A lightweight concrete curing blanket includes a layer of nonwoven fabric that is hydrophilic and that has a thickness of less than about 0.020 inches. A layer of film (e.g., polyethylene film) is bonded to the layer of nonwoven fabric, and has a thickness less than or equal to about 0.001 inch. The layer of film has a moisture vapor transport rate of less than about 0.0016 grams per square foot per twenty-four hours. A combined weight of the layer of nonwoven fabric and the layer of film is less than about 100 grams per square meter.
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