Effective approach to preventing and remedying distresses in soils and construction materials
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United States of America Patent
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May 19, 2015
Grant Date -
Aug 30, 2012
app pub date -
May 10, 2012
filing date -
Aug 6, 2009
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Abstract
Methods for preventing, reducing, or eliminating construction heave, expansion, distresses, and damage primarily caused by the formation of ettringite are disclosed including introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, calcium fluoride, and potassium fluoride, to expansive soil layers or concrete structural elements and allowing the fluoride ion releasing agent/salt(s) at ambient temperature to react with formed ettringite and to prevent the formation of ettringite of the expansive soil layers or concrete structural elements. Other embodiments are described and claimed.
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