Estimating Deterioration Factors of RC Slabs in Cold Regions
Granulated concrete samples obtained from the upper surface of deteriorated RC (reinforced concrete) slabs under the surface asphalt layer of a road were examined by microscopic technique and chemical analyses. The muddy components in the granulated concrete were composed of fine-granulated cement pastes and externally invasive clays and asphalt. Deicing salts were thought to be involved in the granulation of concrete, because calcium hydroxide had completely disappeared from the cement pastes although carbonation was not observed. The granulation was considered to be triggered by cracks caused by re-bar corrosion or an alkali-silica reaction. It was estimated that the progress of granulation was due to a complex mechanism of physical action by repetition loads and chemical action by deicing salts.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/13404733
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Authors:
- Mori, Hiroaki
- Kuga, Ryuichiro
- Ogawa, Shoichi
- Kubo, Yoshimori
- Publication Date: 2013
Language
- English
- Japanese
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: pp 1-9
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Serial:
- Concrete Research and Technology
- Volume: 24
- Issue Number: 1
- Publisher: Japan Concrete Institute
- ISSN: 1340-4733
- EISSN: 2186-2745
- Serial URL: https://www.jstage.jst.go.jp/browse/crt/-char/en
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Asphalt concrete; Cement paste; Chemical analysis; Cracking; Deicing; Deterioration; Frigid regions; Reinforced concrete; Surface course (Pavements)
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 01515520
- Record Type: Publication
- Source Agency: Japan Science and Technology Agency (JST)
- Files: TRIS, JSTAGE
- Created Date: Feb 24 2014 8:43AM