Corrosion inhibitor container
AssigneeCortec Corporation
InventorsBoris A. Miksic, Margarita Kharshan
Life of this patent
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Abstract
The method of adding migrating corrosion inhibitors to a raw concrete mix by loading a migrating corrosion inhibitor in powder form within a container fabricated from a water soluble film, and thereafter depositing the container into a hydrated concrete mix for blending. The container is preferably fabricated from a film consisting of polyvinyl alcohol.
Claims3
The method of blending migrating corrosion inhibitors with raw hydrated concrete mix prior to being introduced into a form defining a structural member for protecting metallic concrete reinforcements being retained within said structural member against corrosion by incorporation of a source of migrating corrosion inhibitors within the said raw hydrated concrete mix through the following steps:
- (a) packaging a quantity of a migrating corrosion inhibitor in powder form within a container fabricated from a water soluble film, the migrating corrosion inhibitor comprising a mixture of an alkali metal benzoate and a gluconate which is selected from the group consisting of alkali metal and zinc gluconates;
- (b) depositing said container into a raw concrete mix;
- (c) blending the contents of said container with said raw concrete mix at a concentration level of about one pound migrating corrosion inhibitor per cubic yard of concrete;
- (d) depositing the concrete mix and corrosion inhibitor blend into the structural member;
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- (e) working the concrete mix and permitting the mix to become set.
Dependencies are inferred from the claim text.