Electrically conductive pavement mixture

Road structure – process – or apparatus – Pavement – Including bed

Reexamination Certificate

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C404S017000, C404S071000

Reexamination Certificate

active

06971819

ABSTRACT:
An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally larger than 40 mesh/425 microns) and the other being fine (generally smaller than 100-200 mesh/150-75 microns). The ratio of course flake graphite to fine flake graphite may be from 1.5:1 and 1:1.5, but is preferably approximately 1:1.

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patent: 6511258 (2003-01-01), Johnsen
patent: 6749678 (2004-06-01), Reynhout
patent: 6-231868 (1994-08-01), None

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