Journal
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
Volume 30, Issue 7, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)MT.1943-5533.0002337
Keywords
Steel-reinforced concrete; Corrosion behavior; Corrosion products; Flexural loading; X-ray computed tomography
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Funding
- National Basic Research Program of China 973 Project [2015CB655100]
- National Natural Science Foundation of China [51678144]
- Natural Science Foundation of Jiangsu Province [BK20161420]
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In this study, the effect of flexural loading on the chloride-induced corrosion behavior of steels in large-sized concrete was characterized using various electrochemical methods and X-ray computed tomography (X-CT). Electrochemical measurements revealed that steels embedded in loaded concrete exhibited higher corrosion rate than those in unloaded concrete after 15days of accelerated corrosion. However, after accelerated corrosion for 60days, similar corrosion behavior was identified for steels in both loaded concrete and unloaded concrete. It was found that the penetration and the distribution of corrosion products in concrete were significantly affected by the sustained flexural loading after the occurrence of load-induced transverse cracks. (c) 2018 American Society of Civil Engineers.
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