Detection of debonding and vertical cracks with non destructive techniques during accelerated pavement testing

Simonin, Jean-Michel; Baltazart,; Huard, Pierre; Kerzreho, J; Dérobert, Xavier; Trichet, Stéphane; Durand, Olivier; Alexandre, Jannette; Joubert, A

doi:10.1201/b13000-19

Cited by 12 publications

(7 citation statements)

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“…However, the 1.8 GHz air-coupled antenna allowed for a better definition of discontinuities in layering, although only six anomalies were are identified if compared with the ten damage areas identified with the 2.3 GHz ground-coupled antenna. This is because the ground-coupled systems have better signal to noise ratio and better resolution when compared with aircoupled systems [20,27]. Moreover, the resolution is a function of the wavelength and it increases while the frequency antenna increases [28,20].…”

Section: Resultsmentioning

confidence: 99%

Assessing the pavement subgrade by combining different non-destructive methods

Marecos

Solla

Fontul

et al. 2017

Construction and Building Materials

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Section: Resultsmentioning

confidence: 99%

Assessing the pavement subgrade by combining different non-destructive methods

Marecos

Solla

Fontul

et al. 2017

Construction and Building Materials

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“…In future work, this algorithm will be tested on experimental data from GPR (Simonin et al ). In addition, new spectral methods and new de‐correlation methods will be studied.…”

Section: Resultsmentioning

confidence: 99%

Time delay and interface roughness estimations by GPR for pavement survey

Sun

Pinel²,

Bastard

et al. 2014

Near Surface Geophysics

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In civil engineering, ground‐penetrating radar is widely used for road pavement surveys. In contrast to the existing literature, this paper takes account of the influence of interface roughness (surface and interlayer roughness) within the scope of data processing of radar signals. The rigorous electromagnetic method PILE (Propagation Inside Layer Expansion) provides simulated data that show the influence of the interface roughness on the backscattered primary echoes of stratified media; the interface roughness provides a continuous frequency decay of the magnitude of the echoes. The observed frequency variations of the radar magnitude introduce some shape distortion on the radar waveform. The latter variations can be modelled by an exponential function, which provides satisfactory results for a narrow bandwidth (2 GHz). An adaptation of the root‐MUSIC algorithm is proposed. As a result, it is possible to jointly estimate the time delay and the interface roughness. The algorithm is tested on data simulated by the PILE method and numerical examples are provided to assess the performance of this algorithm. The associated results show that the proposed algorithm can estimate both the time delay and roughness parameters with a small relative error.

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“…The univ. Eiffel's pavement fatigue carrousel is a full-scale road traffic simulator, with accelerated pavement testing, composed of four arms carrying the moving heavy loads (65 kN on twin wheel for this experiment) at a maximum speed of 90 km/h [12]. The test track associated with this experiment is a 25 m structure of road composed of two bituminous layers (6 cm thick wearing course and 8 cm thick base layer) over a granular sub-base.…”

Section: Design Of the Accelerated Pavement Testing 21 The Fatigue Carrouselmentioning

confidence: 99%

“…The data collection was organized in a two-stage experiments and covers the full lifecycle of the pavement structure. During the first stage, which took place in 2012 [12], 300 K loading cycles were performed, and degradation, either in extension or evolution, was expected. Unfortunately, no visible surface degradation was observed at the end of this first stage of experiments.…”

Section: Introductionmentioning

confidence: 99%

GPR Monitoring of Artificial Debonded Pavement Structures throughout Its Life Cycle during Accelerated Pavement Testing

et al. 2021

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The paper gives an overview of a ground penetrating radar (GPR) experiment to survey debonding areas within pavement structure during accelerated pavement tests (APT) conducted on the university Gustave Eiffel’s fatigue carrousel. Thirteen artificial defect sections composed of three types of defects (Tack-free, Geotextile, and Sand-based) were embedded during the construction phase between the top and the base layers. The data were collected in two stages covering the entire life cycle of the pavement structure using four GPR systems: An air-coupled ultra-wideband GPR (SF-GPR), two wideband 2D ground coupled GPRs (a SIR-4000 with a 1.5 GHz antenna and a 2.6 GHz-StructureScan from GSSI manufacturer), and a wideband 3D GPR (from 3D-radar manufacturer). The first stage of the experiments took place in 2012–2013 and lasted up to 300 K loadings. During this stage, the pavement structure presented no clear degradation. The second stage of experiments was conducted in 2019 and continued until the pavement surface demonstrated a strong degradation, which was observed at 800 K loadings. At the end of the GPR experiments, several trenches were cut at various sections to get the ground truth of the pavement structure. Finally, the GPR data are processed using the conventional amplitude ratio test to study the evolution of the echoes coming from the debonded areas.

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Detection of debonding and vertical cracks with non destructive techniques during accelerated pavement testing

Cited by 12 publications

References 0 publications

Assessing the pavement subgrade by combining different non-destructive methods

Assessing the pavement subgrade by combining different non-destructive methods

Time delay and interface roughness estimations by GPR for pavement survey

GPR Monitoring of Artificial Debonded Pavement Structures throughout Its Life Cycle during Accelerated Pavement Testing

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