Ground penetrating radar inspection of a large concrete spillway: A case-study using SFCW GPR at a hydroelectric dam

• Published in: Case Studies in Construction Materials Vol. 16; p. e00975
• Main Authors: Bigman, Daniel P., Day, Dominic J.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2022; Elsevier
• Subjects: Concrete structures; Ground penetrating radar; Hydroelectric dam; Non-destructive testing; SFCW GPR; Stepped frequency continuous wave; Stepped frequency continuous wave; Ground penetrating radar; Concrete structures; Non-destructive testing; SFCW GPR; Hydroelectric dam
• ISSN: 2214-5095; 2214-5095
• DOI: 10.1016/j.cscm.2022.e00975

Hydroelectric dams are subject to aging and degradation. The concrete structure under investigation here had visible signs of spalling, cracking, and erosion, but it was unclear how damaged the spillway was below the surface. The asset owners wanted to identify delamination and voids 60 cm or larger...