Cement composition having chromium reducer
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United States of America Patent
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Jun 19, 2007
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N/A
app pub date -
Mar 24, 2006
filing date -
Feb 1, 2005
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Abstract
Exemplary compositions and methods for reducing hexavalent chromium in cementitious compositions involve the use of a liquid additive composition, comprising stannous chloride. Along with the stannous chloride may be used at least one co-additive comprising an antioxidant, oxygen scavenger, or mixture thereof, and/or at least one agent comprising a cement grinding aid, cement quality improver, or mixture thereof.
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