Ground Penetrating Radar Data Processing for Concrete Bridge Deck Evaluation

Pashoutani, Sepehr; Zhu, Jinying

doi:10.1061/(asce)be.1943-5592.0001566

Cited by 17 publications

(10 citation statements)

References 22 publications

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“…The lower bound value, -6 dB in Fig. 10a, is also close to a threshold value of -5.3 dB previously reported by the authors [18]. These values are also in agreement with the chloride concentration measurement results in Table 1.…”

Section: Threshold Valuessupporting

confidence: 91%

“…The positions of the GPR scans were recorded using a rover RTK GPS device mounted on a survey cart. GPR signals were processed using the previously described algorithm developed by the authors [18]. After migration, the longitudinal resolution of the GPR scans was equal to the rebar spacing, which is 12.5 cm in the traffic lane and 25 cm in the shoulder.…”

Section: Ground-penetrating Radar Resultsmentioning

confidence: 99%

“…The surface normalization and real depth correction improve the accuracy of GPR data analysis. Details are described in recent publications by the authors [18,19].…”

Section: Ground-penetrating Radarmentioning

confidence: 99%

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Multi-sensor data collection and fusion using autoencoders in condition evaluation of concrete bridge decks

Pashoutani

Zhu

Sim

et al. 2021

J Infrastruct Preserv Resil

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This paper presents a multi-sensor data collection and data fusion procedure for nondestructive evaluation/testing (NDE/NDT) of a concrete bridge deck. Three NDE technologies, vertical electrical impedance (VEI), ground-penetrating radar (GPR), and high-definition imaging (HDI) for surface crack detection, were deployed on the bridge deck. A neural network autoencoder was trained to quantify the relationship between VEI and GPR results using the data collected at common positions. This relationship was then used for fusion of VEI and GPR data to increase the reliability and spatial resolution of the NDE measurements and to generate a data-fused condition map that showed novel characteristics. Threshold values for VEI and GPR tests were obtained and used to determine the color scale in the fused map. Surface cracks identified from HDI show reasonable agreement with the deterioration areas on the data-fused condition map. Chloride concentration measurements on sound and deteriorated areas of the deck were consistent with the NDE results.

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Section: Threshold Valuessupporting

confidence: 91%

Section: Ground-penetrating Radar Resultsmentioning

confidence: 99%

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Multi-sensor data collection and fusion using autoencoders in condition evaluation of concrete bridge decks

Pashoutani

Zhu

Sim

et al. 2021

J Infrastruct Preserv Resil

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“…Other approaches have also been used, with Dinh et al [ 25 ] using the average direct coupling wave as the reference amplitude. According to Pashoutani et al [ 71 ], the use of a constant value of a reference amplitude does not take into account the contribution of concrete surface quality to the signal amplitude, even to the normalized amplitude. Therefore, a normalization procedure was proposed in which each signal amplitude is normalized to its own direct coupling amplitude.…”

Section: Corrosion Monitoring Using Ground-penetrating Radarmentioning

confidence: 99%

“…In these studies, the correction was performed at the two-way travel time level. A more accurate correction could be performed if the linear function is determined using the real reinforcement depth instead of the two-way travel time [ 71 ]. This procedure requires the determination of the real velocities of the signal.…”

Section: Corrosion Monitoring Using Ground-penetrating Radarmentioning

confidence: 99%

Non-Destructive Corrosion Inspection of Reinforced Concrete Using Ground-Penetrating Radar: A Review

2021

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Reduced maintenance costs of concrete structures can be ensured by efficient and comprehensive condition assessment. Ground-penetrating radar (GPR) has been widely used in the condition assessment of reinforced concrete structures and it provides completely non-destructive results in real-time. It is mainly used for locating reinforcement and determining concrete cover thickness. More recently, research has focused on the possibility of using GPR for reinforcement corrosion assessment. In this paper, an overview of the application of GPR in corrosion assessment of concrete is presented. A literature search and study selection methodology were used to identify the relevant studies. First, the laboratory studies are shown. After that, the studies for the application on real structures are presented. The results have shown that the laboratory studies have not fully illuminated the influence of the corrosion process on the GPR signal. Also, no clear relationship was reported between the results of the laboratory studies and the on-site inspection. Although the GPR has a long history in the condition assessment of structures, it needs more laboratory investigations to clarify the influence of the corrosion process on the GPR signal.

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Rapid damage assessment of concrete bridge deck leveraging an automated double-sided bounce system

Kang

David

et al. 2022

Automation in Construction

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Ground Penetrating Radar Data Processing for Concrete Bridge Deck Evaluation

Cited by 17 publications

References 22 publications

Multi-sensor data collection and fusion using autoencoders in condition evaluation of concrete bridge decks

Multi-sensor data collection and fusion using autoencoders in condition evaluation of concrete bridge decks

Non-Destructive Corrosion Inspection of Reinforced Concrete Using Ground-Penetrating Radar: A Review

Rapid damage assessment of concrete bridge deck leveraging an automated double-sided bounce system

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