Patent ID: 6012337
Filing Date: 2000-01-11
Classification: G01B,G01D,G01M

Abstract:
A corrosion monitor for a concrete structure having an outer surface, a cavity in the outer surface, said cavity being defined by an interior surface and an opening to said interior surface, said concrete structure containing metallic reinforcing elements which are subject to corrosion by corrosive environmental forces, said corrosion monitor comprising:(a) a rigid probe of material which is subject to corrosion by said environmental forces, said probe having an end surface, said probe being adapted to be positioned within said cavity so that said end surface engages said interior surface;(b) biasing means for biasing said probe toward said interior surface so that said end surface is maintained in engagement with said interior surface and to enable said probe to move relative to said interior surface as a result of corrosion at said end surface by said environmental forces;(c) a detector operatively connected to said probe for indicating movement of said probe relative to said interior surface; and(d) sealing means for protecting said probe from contact from said environmental forces except through the contact of end surface with said interior surface while allowing said probe to move relative to said interior surface.