Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 193, Issue -, Pages 230-243Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.10.201
Keywords
Recycled aggregate concrete; Concrete filled steel tube; Waste concrete; Creep; Time effects
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Funding
- National Key R&D Program of China [MB20160132]
- National Natural Science Foundation of China [51778184]
- China-Postdoctoral Science Foundation [2014 T70344]
- Fundamental Research Funds for the Central Universities [HIT.NSRIF.2017062]
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This paper intends to investigate how the creep behaviour of recycled aggregate concrete filled steel tubes (RACFST) is affected by the strength of the parent waste concrete that used to produce the recycled coarse aggregates (RCAs). Long-term tests were performed on ten RACFST members. A creep model was suggested to account for the influence of the strength of the parent waste concrete. Based on an extensive parametric study, it was found that with the strength of the parent waste concrete varying between 35 MPa and 70 MPa, a maximum of 37% difference can be achieved in the long-term deformations of the RACFST members. (C) 2018 Elsevier Ltd. All rights reserved.
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