Method of producing metakaolin
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United States of America Patent
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Aug 11, 1998
Grant Date -
N/A
app pub date -
Feb 14, 1997
filing date -
Feb 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming powdered metakaolin for use as an additive in cement based materials comprising the steps of calcining kaolin so as to reduce the hydroxyl content thereof to produce a meta-stable material have an identifiable amorphousness, and pulverizing the meta-stable material into a powder having a particle size of 50 microns or less.
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