Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 246, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2020.118505
Keywords
Reinforced concrete; Accelerated corrosion; Current efficiency; X-ray micro-computed tomography
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Funding
- National Natural Science Foundation of China [U1801254, 51925805, 51727813]
- Collaborative Innovation Center for Advanced Civil Engineering Materials, Nanjing, P. R. China
- Department of Education of Guangdong Province, P. R. China [2018KZDXM060]
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The impressing current technique with different current densities is widely adopted for investigating the deterioration problems caused by the reinforcement corrosion. Additionally, the theoretical mass loss of reinforcement is obtained using Faraday's Law with the assumption that all of the impressed charge participates in the corrosion reaction. In this study, the accelerated corrosion of the reinforcements with different current densities was non-destructively traced by the X-ray micro-computed tomography (XCT). The results indicated that the current efficiency was not constant during the corrosion process. The evolution of the current efficiency was influenced by the current density. (C) 2020 Elsevier Ltd. All rights reserved.
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