Journal
CORROSION SCIENCE
Volume 85, Issue -, Pages 241-250Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.04.028
Keywords
Steel reinforced concrete; Electrochemical calculation; Rust; Interfaces
Funding
- National Natural Science Foundation of China [51278460]
- Ministry of Education of China [NCET-12-0493]
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This study investigated four reinforced concrete mixtures with different replacement percentages of recycled coarse aggregate (RA). The corrosion rate was measured using an electrochemical workstation, and the corrosion-induced cracks on the concrete surface were observed using digital microscopy. The results show that the use of RA introduces more interfaces in concrete, which accelerates the steel corrosion process and corrosion-induced crack propagation in concrete cover. However, steel corrosion and the corrosion-induced cracking process in concrete are not significantly influenced by replacing a small amount (33% in the study) of coarse aggregate with RA. (C) 2014 Elsevier Ltd. All rights reserved.
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