Performance evaluation of Iowa bridge decks constructed with epoxy-coated reinforcing bars.

Donnelly, James P.; Krauss, Paul D.; Lawler, John S.

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Performance evaluation of Iowa bridge decks constructed with epoxy-coated reinforcing bars.

2011-08-01
By Donnelly, James P. ; Krauss, Paul D. ; Lawler, John S.

File Language:

English

Details

Creators:

Donnelly, James P. ; Krauss, Paul D. ; Lawler, John S.
Corporate Creators:

Wiss, Janney, Elstner, and Associates
Subject/TRT Terms:
Publication/ Report Number:

WJE No. 2010.0868
Resource Type:

Tech Report
Geographical Coverage:

Iowa
Corporate Publisher:

Iowa. Dept. of Transportation. Office of Bridges and Structures
Abstract:

Epoxy coatings have been used on the embedded reinforcing bars of bridge decks since the mid-1970s to ; mitigate deterioration caused by chloride-induced corrosion. The use of chloride-based deicers became ; common in the early 1960s and caused corrosion of conventional uncoated bars in bridge decks within 5 ; to 10 years of commencement of deicer applications. In response to this rapid deterioration, the National ; Bureau of Standards researched coatings to protect the reinforcement (National Bureau of Standards, ; 1975), resulting in the development of epoxy-coated reinforcing bars, which were used in bridge decks ; beginning in 1973. While corrosion-related deterioration has been prevalent on bridge decks with ; uncoated reinforcing bars in northern climates where the use of deicing salts is common, bridge decks ; constructed after 1973 with epoxy-coated reinforcing have shown good corrosion resistance with only ; limited exceptions. On the whole, previous laboratory and field studies regarding the performance of ; epoxy-coated reinforcing bars are very promising; however, some laboratory and field studies have ; yielded differing results.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/26294/dot_26294_DS1.pdf
File Type:

[PDF - 9.26 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:2805ca3b868d4223590e4d9132cc2d407afe05185436131850f2e3d18141209b9a23c4a57743ee1ded8c0ea4b70b523b5598202559803b867491faf2dad7ed06

File Language:

English

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