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United States of America Patent
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Jun 3, 2008
Grant Date -
Mar 22, 2007
app pub date -
May 26, 2004
filing date -
May 30, 2003
priority date (Note) -
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Abstract
A liquid accelerator composition for sprayed concrete, comprising aluminium sulphate, amorphous aluminium hydroxide, alkanolamine and an organic dibasic acid anhydride. The compositions allow the attainment of high early compressive strength, and they can be tailored to give good performance with a wide variety of cement types.
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