Refractory system including reactive metakaolin additive
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United States of America Patent
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Sep 8, 1997
filing date -
Sep 8, 1997
priority date (Note) -
Expired
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Abstract
An additive for reducing the calcium aluminate cement content in a refractory mix containing calcium aluminate cement. The additive is comprised of about 80% by weight amorphous, powdered metakaolin, the metakaolin having a mean particle size of less than about 3.0 microns, and about 20% by weight microsilica, the microsilica having a mean particle size of less than 45 microns.
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