Coating processes – Coating pavement or the earth
Patent
1994-05-13
1995-06-27
Bell, Janyce
Coating processes
Coating pavement or the earth
427140, 427264, 427265, 427292, 427384, 4273978, 427403, B05D 500, B32B 3500
Patent
active
054278198
ABSTRACT:
A repair and rehabilitation treatment process for reinforced concrete structures involves the removal of concrete from above rebar or other metal reinforcement material in the concrete structure. After removal of concrete, the metal reinforcement materials are saturated with corrosion inhibiting agents. Saturation is best achieved by multiple spray applications of the corrosion inhibitor. The cavity in the concrete structure with the treated rebar or other metal reinforcement materials is then backfilled and/or overlaid with repair concrete. Preferably, the repair concrete includes corrosion inhibitors which will diffuse to the rebar over time or is a low permeability concrete that reduces the rate of diffusion of chloride corrosion causing agents to the rebar. The repair and rehabilitation process significantly increases the concrete structure's service life.
REFERENCES:
patent: 1558783 (1925-10-01), Bleecker
patent: 4536417 (1985-08-01), Shimizu
patent: 4559241 (1985-12-01), Obitsu et al.
patent: 4931314 (1990-06-01), Takakura et al.
patent: 5039556 (1991-08-01), Cogliano et al.
Prowell Brian D.
Weyers Richard E.
Bell Janyce
Virginia Tech Intellectual Properties Inc.
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