Case study #3 -- severe scaling of an interstate bridge deck, and Potentially reactive carbonate aggregates, progress report #6 (partial): an example of bridge deterioration promoted by alkali-carbonate reaction.

Ozol, Michael A; Newlon, Howard; Virginia Highway Research Council; Virginia. Dept. of Highways; United States. Bureau of Public Roads

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Case study #3 -- severe scaling of an interstate bridge deck, and Potentially reactive carbonate aggregates, progress report #6 (partial): an example of bridge deterioration promoted by alkali-carbonate reaction.

1971-01-01
By Ozol, Michael A ; Newlon, Howard

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English

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Details:

Alternative Title:

Concrete durability studies;Severe scaling of an interstate bridge deck;Example of bridge deterioration promoted by alkali-carbonate reaction;
Creators:

Ozol, Michael A ; Newlon, Howard

Ozol, Michael A ; Newlon, Howard Less -
Corporate Creators:

Virginia Highway Research Council ; Virginia. Dept. of Highways ; United States. Bureau of Public Roads

Virginia Highway Research Council ; Virginia. Dept. of Highways ; United States. Bureau of Public Roads Less -
Subject/TRT Terms:

[+]

Bridge Decks Bridges--Floors Carbonate Rocks Concrete Construction--Testing Scaling (Concrete)
Publication/ Report Number:

VHRC 70-R42
Resource Type:

Tech Report
Geographical Coverage:

Virginia
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

The project designated "Concrete Durability Studies" comprises case studies of unusual durability, either in kind or extent. These case studies are directed toward situations in which appearances suggest materials or construction rather than structural causes. Included in this project as Case Study #3 is an occurrence of severe scaling and pattern cracking in bridge decks of an interstate project: one deck showed severe scaling after only one winter's exposure. Because the aggregate used in these decks was from a source known to contain potentially reactive carbonate rocks, the combination of scaling and chemical reaction was investigated as a likely dual cause. Concurrently with this case study, an extensive study of potentially reactive carbonate aggregates was in progress. One aspect of that study was an evaluation of field manifestations of the alkali-carbonate reaction based upon field surveys of bridge decks in the region of the severely scaled deck. Thus this report, while primarily a case study of the Concrete Durability Study, is also considered to be a report of field performance for the project "Potentially Reactive Carbonate Rocks." The field survey for evidences of carbonate reactivity covers more decks than are treated in this report so that this report serves as a partial Progress Report #6 for that project.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:abf71b1fe7987c1b7afe8e5b8bc0efdc0139110a6f76d971c35fb7de8a4e925d
Download URL:

https://rosap.ntl.bts.gov/view/dot/18907/dot_18907_DS1.pdf
File Type:

[PDF-6.15 MB]