Field investigation of the corrosion protection performance of bridge decks and piles constructed with epoxy-coated reinforcing steel in Virginia.

Weyers, R. E.; Sprinkel, M. M.; Pyc, W.; Zemajtis, J.; Liu, Y.; Mokarem, D.; Virginia Polytechnic Institute and State University. Charles E. Via Dept. of Civil Engineering; Virginia Transportation Research Council (VTRC); Virginia. Dept. of Transportation

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Field investigation of the corrosion protection performance of bridge decks and piles constructed with epoxy-coated reinforcing steel in Virginia.

1997-10-01
By Weyers, R. E. ; Sprinkel, M. M. ; Pyc, W. ; ...

[PDF-2.57 MB]

English

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Creators:

Weyers, R. E. ; Sprinkel, M. M. ; Pyc, W. ; Zemajtis, J. ; Liu, Y. ; ... More +

Weyers, R. E. ; Sprinkel, M. M. ; Pyc, W. ; Zemajtis, J. ; Liu, Y. ; Mokarem, D. Less -
Corporate Creators:

Virginia Polytechnic Institute and State University. Charles E. Via Dept. of Civil Engineering ; Virginia Transportation Research Council (VTRC) ; Virginia. Dept. of Transportation

Virginia Polytechnic Institute and State University. Charles E. Via Dept. of Civil Engineering ; Virginia Transportation Research Council (VTRC) ; Virginia. Dept. of Transportation Less -
Subject/TRT Terms:

[+]

Bridge Decks Carbonation Chlorides Concrete Piles Corrosion Prevention Corrosion Protection Epoxy Coatings Field Tests Marine Environments Moisture Content Performance Evaluation Piles (Supports) Reinforced Concrete Reinforcing Steels Service Life Tests
Publication/ Report Number:

VTRC 98-R4
Resource Type:

Tech Report
Geographical Coverage:

Virginia
Edition:

Final: 1/93-6/97
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

The corrosion protection performance of epoxy-coated reinforcing steel (ECR) was assessed in three bridge decks and the piles

in three marine structures in Virginia in 1996. The decks were 17 years old, two of the marine structures were 8 years old, and the

other marine structure was 7 years old at the time of the investigation. The deck investigations included visually surveying surface

cracks in the right traffic lane and drilling 12 cores randomly located in the lowest 12th percentile cover depth. The pile

investigations included removing 1 core at an elevation between high and low tides from each of 30 piles. The evaluation of the

concrete in each core included visually inspecting and measuring moisture content, absorption, percent saturation, carbonation

depth, and effective chloride diffusion constant. The evaluation of the ECR from each core included visually inspecting and

measuring physical damage, coating thickness, adhesion loss and corrosion at damaged sites, and undercoating corrosion at

adhesion test sites. The chloride content of the concrete and the carbonation of the ECR trace were also determined for each core.

In the majority of bars examined, the epoxy coating has debonded or is debonding from the reinforcing bar. This occurs without

the presence of chloride, and its rate is related to concrete moisture conditions, temperature, coating defects, and other bar and

coating properties. Based on the results of this field study, epoxy coatings can be expected to debond from reinforcing steel in

Virginia's marine environments in about 6 years and from bridge decks in about 15 years.

The authors recommend that additional bridge decks be evaluated to confirm these results.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

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urn:sha256:b3bffb602acbd60f9c37c0f3a8bb1e6c338754f43b499d11b8c3a0afd637aee6
Download URL:

https://rosap.ntl.bts.gov/view/dot/15531/dot_15531_DS1.pdf
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Field investigation of the corrosion protection performance of bridge decks and piles constructed with epoxy-coated reinforcing steel in Virginia.

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