Identifying Spatial and Temporal Variations in Concrete Bridges with Ground Penetrating Radar Attributes

نویسندگان

چکیده

Estimating variations in material properties over space and time is essential for the purposes of structural health monitoring (SHM), mandated inspection, insurance civil infrastructure. Properties such as compressive strength evolve are reflective overall condition aging Concrete structures pose an additional challenge due to inherent spatial variability large length scales. In recent years, nondestructive approaches rebound hammer ultrasonic velocity have been used determine situ concrete with a focus on strength. However, these methods require personnel expertise, careful data collection, high investment. This paper presents novel approach using ground penetrating radar (GPR) estimate assessment bridges. The results show that attributes (or features) GPR raw average amplitudes can be identify differences across deck bridge. Attributes instantaneous intensity reflected waves useful predicting strength, porosity, density. For one alternative Maturity Index (MI) was present values compare estimated values. could successfully identifying temporal variation properties. Finally, discussions presented regarding their suitability limitations field applications.

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ژورنال

عنوان ژورنال: Remote Sensing

سال: 2021

ISSN: ['2315-4632', '2315-4675']

DOI: https://doi.org/10.3390/rs13091846