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Innovative ways in condition assessment of concrete bridge decks: Data collection using robotics, and advanced data interpretation and visualization

Author(s): Nenad Gucunski, Jinyoung Kim, Kien Dinh, Jie Gong, Fei Liu, Seong-Hoon Kee, Basily Basily
Paper category: Proceedings
Book title: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time Vol. 1 & 2
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 21-28
Total Pages: 8
Language : English

Abstract: Concrete bridge decks deteriorate faster than other bridge components due to their direct exposure to traffic and environmental loads. Therefore, the ability to assess their condition and deterioration progression in a reliable and consistent manner is essential for implementation of appropriate maintenance and rehabilitation strategies and, ultimately, their economic management. A fully automated system named RABIT (Robotics Assisted Bridge Inspection Tool) integrates multiple nondestructive evaluation (NDE) technologies for a comprehensive and rapid assessment of concrete bridge decks. The system concentrates on the characterization of internal deterioration and damage, in particular three most common deterioration types in concrete bridge decks: rebar corrosion, delamination, and concrete degradation. RABIT implements four NDE technologies: electrical resistivity (ER), impact echo (IE), ultrasonic surface waves (USW) and ground-penetrating radar (GPR). ER enables characterization of the concrete's corrosive environment, while IE detection and characterization of delamination in the deck. The USW test concentrates on the assessment of concrete quality by measuring the concrete elastic modulus. Finally, GPR provides a qualitative assessment of concrete deck deterioration, mapping of rebars and measurement of concrete cover. The NDE technologies are used in a complementary way to enhance the overall condition assessment and certainty regarding the detected deterioration. The benefits stemming from periodical NDE surveys, along with several innovative ways of data interpretation and visualization are presented.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00

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