Cementitous composition and apparatus and method for manufacturing the same
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United States of America Patent
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Dec 20, 2011
Grant Date -
Mar 10, 2011
app pub date -
Nov 12, 2010
filing date -
Feb 4, 2008
priority date (Note) -
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Abstract
An apparatus for making a cementitious composition may comprise a grinding mill for producing a cementitious composition from clinker and gypsum and classifiers for separating the cementitious composition into various portions. A primary portion of the cementitious composition has a particle size distribution such that substantially all of its particles are of a size of about 10 microns or smaller. A secondary portion and a remainder portion of the cementitious composition are combinable to form a resultant cementitious composition selected from Type I portland cement and Type III portland cement.
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