Pack Rust: Mitigation Strategy Effectiveness

Soriano Somarriba, Edgar Oscary; Bowman, Mark D.

doi:10.5703/1288284317373

i

Pack Rust: Mitigation Strategy Effectiveness

2022-02-01
By Soriano Somarriba, Edgar Oscary ; Bowman, Mark D.

File Language:

English

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Creators:

Soriano Somarriba, Edgar Oscary ; Bowman, Mark D.
Corporate Creators:

Purdue University. Joint Transportation Research Program
Corporate Contributors:

Indiana Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Bridges Caulking Coatings Corrosion Crevice Corrosion Guidelines Pack Rust Penetrating Sealers Recommendations Repairing Repair Methods Rusting Rust Prevention Sealing Compounds Splice Connections Steel Bridges Structural Connection
Publication/ Report Number:

FHWA/IN/JTRP-2022/10
DOI:

https://doi.org/10.5703/1288284317373
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final
Corporate Publisher:

Purdue University. Joint Transportation Research Program
Abstract:

As of 2013, the damage caused by corrosion on highway bridges has been estimated to cost approximately 14 billion dollars annually, and this cost has been increasing over the years. Corrosion is one of the natural phenomena that has been slowly deteriorating infrastructure systems across the United States. One of the most problematic types of corrosion is crevice corrosion, which is defined as the formation of rust between overlapping surfaces, such as the case of a splice connection where flanges are attached by splice plates. A significant number of steel bridges in Indiana have developed crevice corrosion in splice connections. Therefore, this research focuses on the crevice corrosion, or “pack rust,” occurring in these structural elements. The application of coatings alone has not been enough to stop pack rust at these connections. In an attempt to look for approaches that can effectively mitigate this problem and maintain the designed service life of bridges, different strategies have been studied and tested. It was found that the proper use of penetrating sealers can be effective in delaying the development of further corrosion, while the use of caulk alone may be problematic as a repair method.
Format:

PDF
Funding:

SPR-4309
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:9c42a15cdb065f2e73adaf4526a39263e15a8227fbdf8ac3bda91a2f00ebf610
Download URL:

https://rosap.ntl.bts.gov/view/dot/64095/dot_64095_DS1.pdf
File Type:

[PDF - 15.93 MB ]

File Language:

English

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