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Title: Toward Performance Specifications for Concrete Durability: Using the Formation Factor for Corrosion and Critical Saturation for Freeze-Thaw
Accession Number: 01628592
Record Type: Component
Abstract: This paper discusses the development of a conceptual framework for the specification of concrete durability using performance modeling concepts. Specifically, the approach will relate acceptance tests, material properties, degradation models, limit states, and reliability. When implemented, this approach can be used for a variety of distress mechanisms; examples are provided for two specific distresses. In the first example, the formation factor is used to describe the transport of chloride ions that result in the onset of depassivation and corrosion in a reinforced concrete element. In the second example, a sorption based model is presented to describe performance of concrete in a freeze-thaw environment. While the test methods will need to be refined and models will require further calibration based on rigorous evaluation and improvement in the coming years, this framework has great potential to directly relate measured concrete properties to the long term durability performance of concrete structures.
Supplemental Notes: This paper was sponsored by TRB committee AFN30 Standing Committee on Durability of Concrete.
Monograph Title: Monograph Accession #: 01618707
Report/Paper Numbers: 17-02543
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Weiss, W JasonLey, M TylerIsgor, O BurkanVan Dam, ThomasPagination: 20p
Publication Date: 2017
Conference:
Transportation Research Board 96th Annual Meeting
Location:
Washington DC, United States Media Type: Digital/other
Features: Figures; References
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Materials
Source Data: Transportation Research Board Annual Meeting 2017 Paper #17-02543
Files: TRIS, TRB, ATRI
Created Date: Dec 8 2016 10:57AM
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