Characteristic and structural assessment of damaged RC decks by chloride corrosion of reinforcing bar and fatigue

Durability of the reinforced concrete decks on highway bridges depends on the corrosion of the reinforcing bar and fatigue due to the traffic load. In this paper, field investigation of these damage and various laboratory tests using old removed highway bridge decks are conducted. In addition, we pr...

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Bibliographic Details
Published inJournal of Structural Engineering, A Vol. 57A; pp. 1263 - 1272
Main Authors Ishikawa, Yuichi, Adachi, Yoshifumi, Nagai, Masatsugu, Aoyama, Minobu
Format Journal Article
LanguageEnglish
Japanese
Published Japan Society of Civil Engineers 2011
Subjects
de-icing salt
loading test
RC slab
structural assessment
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ISSN1881-820X
DOI10.11532/structcivil.57A.1263

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Summary:Durability of the reinforced concrete decks on highway bridges depends on the corrosion of the reinforcing bar and fatigue due to the traffic load. In this paper, field investigation of these damage and various laboratory tests using old removed highway bridge decks are conducted. In addition, we propose structural assessment using the deflection of the reinforced concrete decks. From the results, several findings regarding the corrosion of the reinforcing bar due to chloride ion penetration and fatigue mechanism of concrete decks are obtained.
ISSN:1881-820X
DOI:10.11532/structcivil.57A.1263