Waterfront Depth Analysis in Hardened Concrete by Means of the Nondestructive Ground-Penetrating Radar Technique

Abad, Isabel Rodríguez; Klysz, Gilles; Martínez‐Sala, R.; Balayssac, Jean-Paul; Mené-Aparicio, Jesús

doi:10.1109/jstars.2015.2449737

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…A review about the techniques based on time domain and frequency on radar signals is provided by Tosti and Slob (2015). However, as far as we know, the studies carried out by Rodríguez-Abad et al (2014, 2016a are the only ones that deal with the assessment of the location and determination of the waterfront depth from electromagnetic wave parameters.…”

Section: Introductionmentioning

confidence: 99%

“…In line with this former investigation, the aim of this paper is to analyze the effect of differential waterfront depths on the wave velocity and find out the waterfront depth in concrete specimens, which have been partially immersed in water. While the study of Rodríguez-Abad et al (2016a) was conducted placing the GPR on the surface opposite the immersed one, in this case, the study was performed by placing the GPR antenna on the same surface that was immersed into water, the preliminary analysis of which was presented in the European Geosciences Union (EGU) General Assembly (Rodríguez-Abad et al, 2016b). To carry out these two studies, 24 concrete specimens were fabricated, cured and dried in a kiln.…”

Section: Introductionmentioning

confidence: 99%

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Application of ground-penetrating radar technique to evaluate the waterfront location in hardened concrete

Abad¹,

Klysz

Martínez‐Sala³

et al. 2016

Geosci. Instrum. Method. Data Syst.

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The long-term performance of concrete structures is directly tied to two factors: concrete durability and strength. When assessing the durability of concrete structures, the study of the water penetration is paramount, because almost all reactions like corrosion, alkali-silica, sulfate, etc., which produce their deterioration, require the presence of water. Ground-penetrating radar (GPR) has shown to be very sensitive to water variations. On this basis, the objective of this experimental study is, firstly, to analyze the correlation between the water penetration depth in concrete samples and the GPR wave parameters. To do this, the samples were immersed into water for different time intervals and the wave parameters were obtained from signals registered when the antenna was placed on the immersed surface of the samples. Secondly, a procedure has been developed to be able to determine, from those signals, the reliability in the detection and location of waterfront depths. The results have revealed that GPR may have an enormous potential in this field, because excellent agreements were found between the correlated variables. In addition, when comparing the waterfront depths calculated from GPR measurements and those visually registered after breaking the samples, we observed that they totally agreed when the waterfront was more than 4 cm depth.Published by Copernicus Publications on behalf of the European Geosciences Union.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%