Measurement Methods of Geometrical Parameters and Amount of Corrosion of Steel Bar

Li, Dawang and Wei, Ren and Du, Yingang and Guan, Xiaotao and Zhou, Muyao (2017) Measurement Methods of Geometrical Parameters and Amount of Corrosion of Steel Bar. Construction and Building Materials, 154. pp. 921-927. ISSN 1879-0526

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This paper aims to evaluate the applicability and suitability of the different methods, including weight loss, vernier caliper, drainage method, 3D scanning and XCT methods in the measurement of geometric parameters and amount of corrosion of a steel bar. A single 400mm long and 14.11mm diameter steel bar was measured first as non-corroded specimen before an accelerated corrosion of its 300mm long middle part took place. This was followed by the measurement and evaluation of the geometrical parameters of the same bar specimen within its 300mm long corroded part and 30mm non-corroded part at its right end using different methods. The results show that the geometrical parameters of a corroded bar measured using 3D scanning and XCT methods well matched each other and much more precise than those using weight loss, vernier caliper and drainage methods. 3D scanning is the most suitable method to measure the geometrical parameter of a corroded bar. Vernier caliper is the best option for measuring the geometrical parameter of a non-corroded bar.

Item Type: Journal Article
Keywords: Weight loss, Vernier caliper, Drainage, 3D scanning, XCT method, Corroded bar
Faculty: ARCHIVED Faculty of Science & Technology (until September 2018)
Depositing User: Dr Yingang Du
Date Deposited: 07 Aug 2017 12:41
Last Modified: 09 Sep 2021 18:58

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