Experimental Study on Cathodic Protection of Anchor Bar

DOI

10.2991/978-94-6463-514-0_68How to use a DOI?

Keywords

Anchor Corrosion Protection; Cathodic Protection; The minimum protective potential for the anchor bar

Abstract

A self-designed cathodic protection (CP) setup with an externally applied current was developed, using a copper wire ring buried in the soil layer, aligned with the anchor rod axis, as the anode, and the anchor rod as the cathode, connected to a DC power supply to form a current loop, to achieve rust prevention for the anchor bar. Indoor simulation experiments are conducted to analyze the distribution of electric fields and the degree of corrosion of the anchor bar under different voltages, copper wire ring diameters, and anchor bar lengths. The results show that the anchor bar with the externally applied cathodic protection effectively slows down its corrosion process compared to the anchor bar without cathodic protection. A larger diameter of the anode copper wire ring results in less corrosion. An increase in the length of the anchor bar leads to a decrease in the surface potential along the depth direction, affecting the protective effect. The minimum protective potential on the surface of the anchor rod is 760-820mV.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jiangong Chen
AU  - Jingrui Xu
AU  - Xiaoyu Ma
AU  - Ziyi Wu
PY  - 2024
DA  - 2024/09/28
TI  - Experimental Study on Cathodic Protection of Anchor Bar
BT  - Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
PB  - Atlantis Press
SP  - 701
EP  - 713
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-514-0_68
DO  - 10.2991/978-94-6463-514-0_68
ID  - Chen2024
ER  -