Evaluation of Bridge Deck Treatments Along I-15 in Nephi, Utah

Mikulich, Matthew

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Evaluation of Bridge Deck Treatments Along I-15 in Nephi, Utah

2020-05-01
By Mikulich, Matthew

File Language:

English

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Creators:

Mikulich, Matthew
Corporate Creators:

University of Utah. Department of Civil and Environmental Engineering
Corporate Contributors:

Utah Department of Transportation
Subject/TRT Terms:

Alternatives Analysis Bridge Decks Bridge Maintenance Bridge Management Systems Chlorides Condition Surveys Deck Overlays Deck Treatments Maintenance Practices Overlays (Pavements) Pavement Maintenance Reinforced Concrete Bridges
Publication/ Report Number:

UT-20.23
Resource Type:

Tech Report
Geographical Coverage:

United States ; Utah
Edition:

Final Jan 2020 to May 2020
Corporate Publisher:

Utah Department of Transportation
Abstract:

This report reviews the available condition, history, and chloride testing results of twenty-two (22) reinforced concrete bridge decks on I-15 near Nephi, Utah from milepost 221 to 228. The bridges in this research group were constructed in the same era with similar details, and also experienced comparable vehicular and environmental loads. Each of the structures have received varying levels of preservation treatments over their service lives, including structural pothole patching, healer sealers, thin bonded polymer overlays, hydrodemolition, and latex modified concrete overlays. The relative successes of these treatments are evaluated using data from the chloride ion infiltration tests and the bridge condition surveys and treatment histories. Chloride profiles reveal the extent of ion ingress and critical concentrations at reinforcement depths, with the suggested critical value of 8.0 pounds per cubic yard (lb per CY) for epoxy-coated rebar. The results of the data analysis concluded that with all significant variables accounted for, hydrodemolition with latex modified concrete overlay had the comparatively best performance, followed by structural pothole patching with thin bonded polymer overlays. In general, the performance of the structural pothole patching with healer sealer treatments performed comparatively poorly.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:8758a1da8f968b86a6c1f6f8eab223bb6564db95c43b70533f439759a71346ca
Download URL:

https://rosap.ntl.bts.gov/view/dot/58257/dot_58257_DS1.pdf
File Type:

[PDF - 26.94 MB ]

File Language:

English

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