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reduced for a significant duration of time.

The purpose of this study was to evaluate the effectiveness of two corrosion inhibit using two methods of application to determine if either inhibitor could be applied in a man that would effectively decrease the rate of corrosion in concrete bridge decks.

The two corrosion inhibitors evaluated were TPS-II and FerroGard 903. The two methods evaluated for treating an exposed concrete surface and mitigating corrosion were unassisted (topical application) and assisted (vacuum/pressure injection) treatment method Both field and laboratory components were included in this study, with the laboratory stud being initiated after TPS-II had been topically

applied to a bridge deck in Virginia. Therefore, the project was divided into two parts, which included a limited field study of the effective of one of the inhibitors and application methods for a bridge deck and a laboratory study two inhibitors and application methods.

Conclusions

The topical application of inhibitor for corrosion mitigation is ineffective.

The vacuum/pressure injection method shows promise, but the methodology requires refinement.

Macro-cell measurements indicate that if a sufficient quantity of inhibitor can be injected into the concrete, the charge passed can be reduced.

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