Method for processing of pozzolans
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United States of America Patent
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Mar 2, 2010
Grant Date -
May 14, 2009
app pub date -
Nov 20, 2007
filing date -
Nov 12, 2007
priority date (Note) -
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Abstract
Method for processing of pozzolans comprising fly ash such as Class F and/or Class C fly ash used for preparation of mortars and concretes, characterized in, that the pozzolans is subjected to a high energetic mechanical processing by means of grinding in a grinding equipment to a fineness of the final product with a retention on a sieve 30 microns being less than 5%, whereby the pozzolan particles receive mechanical impulses when non-cenosphere in the form of coarse scoria particles are disintegrated and whereby the surface of cenosphere grinded particles is activated.
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