Set-accelerating admixture having improved stability
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United States of America Patent
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May 5, 2015
Grant Date -
Jan 29, 2015
app pub date -
Feb 6, 2013
filing date -
Feb 6, 2012
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Abstract
The present invention is mainly aimed at a set-accelerating admixture for hydraulic compositions comprising, in an aqueous solution,
- the reaction product of an alkanolamine with a concentrated strong acid;sulfate anions; andalkali or alkaline earth cations;having a pH comprised between 5 and 12. Moreover it is directed to a method for its preparation as well as to a method for preparing hydraulic compositions comprising the step for adding such an admixture to the hydraulic binder, before, during or after the grinding.
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