Composition and method for combatting chloride-induced corrosion in steel in reinforced concrete
AssigneeCenter for Innovative Technology
InventorsJohn D. Dillard, James O. Glanville
Life of this patent
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Abstract
A composition and method for inhibiting chloride-induced corrosion in reinforcing steel (rebar) present in concrete structures such as roadways, bridges, and buildings. A boron-containing compound, such as a borate salt, is applied to the reinforced concrete structure. Application can be done by applying a mixture of road salt and the boron-containing compound or by applying a solution having the boron-containing compound to the concrete structure.
Claims17
A method of inhibiting chloride-induced corrosion of steel reinforcing bars in concrete structures containing same comprising applying to said concrete structure a chloride-induced corrosion inhibiting amount of a boron-containing compound selected from the group consisting of a borate salt or boric acid (orthoboric).
A composition for inhibiting chloride-induced corrosion of steel reinforcing bars in concrete roads or structures containing same comprising:
- sodium chloride or calcium chloride and
- a chloride-induced corrosion inhibiting effective amount of a boron-containing compound selected from the group consisting of a borate salt or boric acid (orthoboric).
Dependencies are inferred from the claim text.