Durability improving agent and cement composition
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United States of America Patent
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Mar 18, 2014
Grant Date -
Apr 26, 2012
app pub date -
May 13, 2010
filing date -
May 15, 2009
priority date (Note) -
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Abstract
It is an object of the present invention to provide a durability improving agent for a cement composition that improves the freezing-thawing resistance of the cement composition and also exhibits a sufficient shrinkage reducing performance as well, and a cement composition including such a durability improving agent. Specifically, the present invention provides a durability improving agent for a cement composition, characterized by comprising a hydrocarbon-based compound having an average molecular weight of 150 to 600 and a pour point of 20° C. or less as an active ingredient, and a cement composition including such durability improving agent.
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