Accelerated Corrosion Behavior of Steel in Concrete Subjected to Sustained Flexural Loading Using Electrochemical Methods and X-Ray Computed Tomography
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 7
Abstract
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 15 days of accelerated corrosion. However, after accelerated corrosion for 60 days, 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.
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Acknowledgments
The authors greatly acknowledge the support by the National Natural Science Foundation of China (No. 51678144), the National Basic Research Program of China “973 Project” (No. 2015CB655100) and the Natural Science Foundation of Jiangsu Province (BK20161420).
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 7 • July 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: May 18, 2017
Accepted: Jan 12, 2018
Published online: Apr 27, 2018
Published in print: Jul 1, 2018
Discussion open until: Sep 27, 2018
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