Photocatalytic granular mixture for mortar and concrete and its use
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United States of America Patent
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Jul 7, 2009
Grant Date -
Oct 2, 2008
app pub date -
Oct 3, 2007
filing date -
Oct 3, 2002
priority date (Note) -
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Abstract
The photocatalytic granular mixture for mortar and concrete includes a photocatalyst in the form of at least two granular classes with different B.E.T. specific surfaces. It has a photocatalytic activity greater than that of a monodisperse photocatalyst with a single range of B.E.T. specific surface, and thus permits, in association with a conventional hydraulic binder, to obtain construction and repair materials whose aptitude for self cleaning, for the reduction of odors, and for the depollution of ambient air, is considerably improved.
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