Mechanical Characterization of Enamel Coated Steel Bars

Tang, Fujian; Chen, Genda; Volz, Jeffery S.; Brow, Richard K.; Koenigstein, Michael

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Mechanical Characterization of Enamel Coated Steel Bars

2012-12-01
By Tang, Fujian ; Chen, Genda ; Volz, Jeffery S.

File Language:

English

Details

Creators:

Tang, Fujian ; Chen, Genda ; Volz, Jeffery S. ; Brow, Richard K. ; Koenigstein, Michael
Corporate Creators:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:
Publication/ Report Number:

NUTC R208 ; Project # 00018130
Resource Type:

Tech Report
Geographical Coverage:

Missouri ; United States
Corporate Publisher:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Abstract:

In this study, the corrosion process of enamel-coated deformed rebar completely immersed in 3.5 wt.% NaCl solution was evaluated over a period of 84 days by EIS testing. Three types of enamel coating were investigated: pure enamel, 50/50 enamel coating, and double enamel. Surface condition of the enamel coatings that were intentionally damaged prior to corrosion tests was visually examined at different immersion times. After 84 days of testing, the damaged coating areas were characterized by SEM, and the corrosion products on and adjacent to the damaged areas were collected and analyzed by XRD. Corrosion initiated at the damaged locations with no undercutting of the coating observed. The 50/50 enamel coating had the least corrosion resistance, due to its interconnected pore structure, and prior damage drastically reduced the corrosion resistance of pure and double enamel coated rebar.
Format:

PDF
Funding:

DTRT06-G-0014
Download URL:

https://rosap.ntl.bts.gov/view/dot/27909/dot_27909_DS1.pdf
File Type:

[PDF - 761.18 KB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha256:e27a0898175c6bcb1034f2df4661c25ae5d38e01922b0b5778bac34bc947f6b0

File Language:

English

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