Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Bruce J. Christensen0
Thomas M. Vickers, Jr.0
Date of Patent
October 30, 2007
0Patent Application Number
111520050
Date Filed
June 14, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved freeze-thaw durability wet cast cementitious composition is provided that uses in-situ production of gas by gas generating additives and optionally polymeric microspheres that are blended directly into the mixture. The gas generating additives and the polymeric microspheres provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material.
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