Evaluation of corrosion level of naturally corroded barsusing different cleaning methods, computed tomography,and 3D optical scanning
Journal article, 2018

Reliable methods are necessary to assess the corrosion level to establish links between structural performance and reinforcement corrosion in concrete structures. Hence, in this study, a set of naturally corroded bars were subjected to metallic brushing, acid immersion, and sandblasting for rust removal. Additionally, 3D optical, CT scanning, and weight loss measurements were used to evaluate the levels of corrosion. The results indicate that sandblasting is an optimal cleaning method. Weight loss measurements are sufficient when detailed information about corrosion is not required, and 3D scanning is preferred if information on corrosion variation along the bar is needed.

Corrosion level measurement

acid cleaning

cleaning methods

3D optical scanning


computed tomography scanning


Ignasi Fernandez

Chalmers, Architecture and Civil Engineering, Structural Engineering

Karin Lundgren

Chalmers, Architecture and Civil Engineering, Structural Engineering

Kamyab Zandi

Chalmers, Architecture and Civil Engineering, Structural Engineering

Materials and Structures/Materiaux et Constructions

1359-5997 (ISSN)

Vol. 78

Relating visual inspection to structural effects of natural corrosion in reinforced concrete structures

Swedish Transport Administration, 2014-05-15 -- 2017-05-15.

Subject Categories

Applied Mechanics

Infrastructure Engineering

Reliability and Maintenance

Areas of Advance

Building Futures (2010-2018)



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