Research notes : washing bridges to reduce corrosion.

Oregon. Dept. of Transportation. Research Unit

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Research notes : washing bridges to reduce corrosion.

2003-12-01
By Oregon. Dept. of Transportation. Research Unit

[PDF-140.84 KB]

English

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Alternative Title:

Washing bridges to reduce corrosion.
Corporate Creators:

Oregon. Dept. of Transportation. Research Unit
Subject/TRT Terms:

[+]

Automated Sprinkler System Cathodic Protection Chlorides Corrosion Reinforced Concrete Bridges Reinforcing Steel Rusting Washing
Publication/ Report Number:

RSN 04-03
Resource Type:

Tech Report
Geographical Coverage:

Oregon
Corporate Publisher:

Oregon. Dept. of Transportation. Research Unit
Abstract:

Reinforced concrete bridges on Oregon’s coast are exposed to chloride ions from marine salt that penetrate into the concrete and cause the reinforcing steel to corrode. The corrosion causes the concrete to spall from the bridge and also reduces the cross section of the steel bars. Repairs include removing the damaged concrete and rust, replacing the badly corroded steel, restoring the dimensions of the beam, and applying cathodic protection to stop further corrosion. Repair and mitigation is expensive, but if left unchecked, the structural capacity of the bridge is diminished. In extreme cases, the bridge is replaced.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:226053f342ba795523340002aae0e92fe61edb89811912408d79b5d06ba0cf5c
Download URL:

https://rosap.ntl.bts.gov/view/dot/22619/dot_22619_DS1.pdf
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Research notes : washing bridges to reduce corrosion.

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