Bond behaviour of deformed bars embedded in RAC
- Authors
- Choi, H. B.; Kang, K. I.
- Issue Date
- 8월-2008
- Publisher
- ICE PUBLISHING
- Citation
- MAGAZINE OF CONCRETE RESEARCH, v.60, no.6, pp.399 - 410
- Indexed
- SCIE
SCOPUS
- Journal Title
- MAGAZINE OF CONCRETE RESEARCH
- Volume
- 60
- Number
- 6
- Start Page
- 399
- End Page
- 410
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/122982
- DOI
- 10.1680/macr.2008.60.6.399
- ISSN
- 0024-9831
- Abstract
- To investigate the bond behaviour between recycled aggregate concrete (RAC) and rebar, this paper considers recycled aggregates (RAs) (RG of grade I and III and RS of grade II), w/c ratios (40% and 50%), and replacement ratios of RAs (0%, 30%, 50% and 100%). The results were as follows: (a) bond stress-slip shows tendencies like those of normal concrete up to a replacement ratio of 50%; (b) shearing stress-strain is influenced by grade and the replacement ratio of RAs; (c) tau(b) is influenced by grade and the replacement ratio of RAs, but at high w/c, tau(b) is not influenced by the quality and the replacement ratio of RAs; (d) tau(b)/root f(ck) is influenced by the w/c ratio; and (e) tau(b) between RAC and rebar is overestimated or underestimated by existing equations. As a result, a new equation (with modification of either the beta value, invariable value or others), or modified development length or lap splice length must be considered.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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