Method of making cement from tailings or rock fines containing silicate or siliceous compounds
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United States of America Patent
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N/A
Issued Date -
Mar 21, 2002
app pub date -
Jun 28, 2001
filing date -
Jun 1, 1999
priority date (Note) -
Abandoned
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Abstract
A method of making cement from tailings or rock fines containing silicate or siliceous compounds includes grinding the tailings or rock fines to a size in the range of from about -250 to about 425 mesh to produce ground pozzolan. The ground pozzolan is mixed with Type 1 normal Portland cement or Type 3 high early strength Portland cement in a ratio of at least about 0.1:1 by weight to produce a blended cement.
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