Evaluation of Delaminations and Defects in Concrete Deck Using Non-Destructive Multi-Physical Scanning Technology

Ri-On Oh, Hwang-Hee Kim, Yeon-Jae Choo, Sung-Ki Park, Shanelle Aira Rodrigazo, Jaeheum Yeon () and Chan Gi Park ()
Additional contact information
Ri-On Oh: Research Center, Contecheng Co., Ltd., Yongin 16942, Republic of Korea
Hwang-Hee Kim: Research Center, Contecheng Co., Ltd., Yongin 16942, Republic of Korea
Yeon-Jae Choo: Research Center, Contecheng Co., Ltd., Yongin 16942, Republic of Korea
Sung-Ki Park: Research Center, Contecheng Co., Ltd., Yongin 16942, Republic of Korea
Shanelle Aira Rodrigazo: Department of Regional Infrastructure Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
Jaeheum Yeon: Department of Regional Infrastructure Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
Chan Gi Park: Department of Regional Construction Engineering, Kongju National University, Gongju-si 32439, Republic of Korea

Sustainability, 2024, vol. 16, issue 21, 1-25

Abstract: Condition assessment of concrete bridge decks is critical for ensuring structural integrity and public safety, particularly as infrastructure ages. Traditionally, such assessments are made using destructive techniques, such as coring through concrete to collect samples for analysis. However, these invasive methods create weak points within the structure and risk damaging essential components, such as cutting through rebars. This paper explores the use of three non-destructive testing (NDT) methods—electrical resistivity (ER), impact echo (IE), and infrared thermography (IRT)—to evaluate the structural health of concrete bridge decks and overlays. These techniques are tested individually and in combination through a mock-up experiment to detect defects such as delamination and corrosion. The findings demonstrate that while each NDT method has specific strengths—surface ER with a 46.67% detection rate, IE with 40%, and IRT with 53.33%—the combined detection rate increased to 60%. This combined approach provides a more comprehensive assessment and is expected to help establish better maintenance strategies for aging infrastructure. The study highlights the importance of optimizing NDT methods for real-world applications, addressing current limitations such as environmental sensitivity and scanning speed, to improve the early detection and prevention of structural failures.

Keywords: concrete bridge deck; non-destructive testing; electrical resistivity; impact echo; infrared thermography; delamination; structural health monitoring (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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