Journal
MATERIALS AND STRUCTURES
Volume 51, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1617/s11527-018-1206-z
Keywords
Corrosion level measurement; Cleaning methods; 3D optical scanning; Computed tomography scanning; Sandblasting; Acid cleaning
Categories
Funding
- Swedish Transport Administration (Trafikverket)
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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.
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