Active steel repassivator for corroded steel in chloride...

Details Active steel repassivator for corroded steel in chloride... Active steel repassivator for corroded steel in chloride...

2006-05-09

2006-05-09

Thexton, Matthew A. (Department: 1714)

Coating processes

Measuring, testing, or indicating

C106S014130, C106S014150, C106S014160, C252S389540

Reexamination Certificate

active

07041330

ABSTRACT:
An active steel repassivator for the rehabilitation of chloride contaminated reinforced concrete structures and a method for the application of same is disclosed. The active steel repassivator is comprised of a continuous phase, a distributed phase, and/or an aqueous solution of an amine. The continuous phase, also known as the carrier phase, is selected from organic strong volatile bases, salts of weak volatile acids and a non-ionic surfactant. The distributed phase includes an anion containing vanadium in the +4 or +5 state of oxidation. The aqueous solution of the amine acts as a co-inhibitor in the composition.

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