Corrosion inhibiting materials for reducing corrosion in metallic concrete reinforcements
AssigneeCortec Corporation
InventorsAlla Furman, Margarita Kharshan, Boris A. Miksic, Arthur H. Ahlbrecht
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Abstract
A corrosion inhibiting composition for use in reinforced concrete structures, the inhibitor composition reducing the rate of corrosion in metallic reinforcing rods placed within the structures. The composition includes a combination of one or more corrosion inhibiting agents and one or more silica neutralizing agents.
Claims10
A corrosion inhibiting composition, comprising;
- (a) between about 8.5% and about 17.5% by weight of one or more gluconate salts;
- (b) between about 18% and about 26% by weight of one or more nitrate salts;
- and
- (c) between about 2.5% and about 19.5% by weight of one or more corrosion inhibiting agents selected from the group consisting of cyclohexylammonium benzoate, ethylammonium benzoate, ammonium benzoate, dimethylethanolamine, and combinations thereof.
A method for inhibiting corrosion of metallic elements disposed in concrete mixtures, said method comprising the steps of;
- (a) providing a corrosion inhibiting composition having:
- (i) between about 8.5% and about 17.5% by weight of one or more gluconate salts;
- (ii) between about 18% and about 26% by weight of one or more nitrate salts;
- and
- (iii) between about 2.5% and about 19.5% by weight of one or more corrosion inhibiting agents;
- (iv) balance water;
- and
- (b) adding said corrosion inhibiting composition to said concrete mixtures.
A corrosion inhibiting composition for treatment of metallic elements disposed within concrete mixtures, said corrosion inhibiting composition comprising:
- (a) between about 8.5% and about 17.5% by weight sodium gluconate;
- (b) between about 18% and about 26% by weight aluminum nitrate;
- and
- (c) between about 2.5% and about 19.5% by weight of one or more corrosion inhibiting agents other than gluconate salts and nitrate salts.
A corrosion inhibiting composition consisting essentially of:
- (a) about 9.5% by weight sodium gluconate;
- (b) about 18% by weight aluminum nitrate;
- (c) about 19.5% by weight of one or more corrosion inhibiting agents;
- and
- (d) balance water.
Dependencies are inferred from the claim text.