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

Tešić, Ksenija; Baričević, Ana; Serdar, Marijana

doi:10.3390/ma14040975

Cited by 51 publications

(28 citation statements)

References 98 publications

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“…Reduced maintenance costs of concrete structures can be ensured by efficient and comprehensive condition assessment [ 54 ]. 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.…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

“…In addition, no clear relationship was reported between the results of the laboratory studies and the on-site inspection. Although 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 [ 54 ].…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

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Testing of Materials and Elements in Civil Engineering

Schabowicz

2021

Materials

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This issue is proposed and organized as a means to present recent developments in the field of testing of materials in civil engineering. For this reason, the articles highlighted in this issue should relate to different aspects of testing of different materials in civil engineering, from building materials and elements to building structures. The current trend in the development of materials testing in civil engineering is mainly concerned with the detection of flaws and defects in elements and structures using destructive, semi-destructive, and nondestructive testing. The trend, as in medicine, is toward designing test equipment that allows one to obtain a picture of the inside of the tested element and materials. Very interesting results with significance for building practices of testing of materials and elements in civil engineering were obtained.

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Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

Testing of Materials and Elements in Civil Engineering

Schabowicz

2021

Materials

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“…However, because moisture content and chloride content [21,22] also attenuate electromagnetic waves, compensation of their effects on the radar amplitude information is required. Therefore, despite its capability GPR only presents a qualitative assessment of the corrosion damage [23]. Thus, at present, there is no proposed reliable method that can simply and quickly, quantitatively and non-destructively evaluate rebar corrosion.…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive and Quantitative Evaluation of Rebar Corrosion by a Vibro-Doppler Radar Method

Miwa

2021

Sensors

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It is well known that evaluation of rebar corrosion is important for the maintenance of reinforced concrete structures, but, it is difficult to simply, quickly and quantitatively evaluate the amount of corrosion of rebars embedded in concrete by conventional non-destructive evaluation (NDE) methods such as electrical, electromagnetic and mechanical method. This paper proposes a vibro-Doppler radar (VDR) measurement method to quantitatively evaluate rebar corrosion by measuring the vibration ability of the rebar forcibly vibrated in concrete by an excitation coil. It is experimentally demonstrated in RC test pieces that the rebar vibration displacement obtained by developed VDR method is valid and is less affected by the moisture in the concrete. In addition, simultaneous monitoring of the rebar vibration displacement of the test pieces is performed through an electrolytic corrosion test and the measured vibration displacement is compared to the rebar corrosion loss evaluated. As the results, it is cleared that the rebar vibration displacement starts to increase from slightly before the occurrences of corrosion crack on the concrete surface as the corrosion loss increases. It is also shown that the rebar vibration displacement becomes 4 times higher than that in initial condition at the rebar corrosion loss of 250 mg/cm2. This implies that the VDR has potential to nondestructively and quantitatively evaluate rebar corrosion in concrete.

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“…chlorides and sulphates) undermine the structures durability [6], requiring interventions getting more expensive the longer the time since the damage has occurred ("The law of fives" by De Sitter states that the repairing costs increase exponentially after the structure damaging [7]). These events modify the concrete element composition and morphology, resulting in changes detectable through different techniques, such as ultrasound [8], [9], computer vision [10], [11], thermography [12], [13], ground penetrating radar (GPR) [14], [15], electrical resistivity [16], only to name a few.…”

Section: Introductionmentioning

confidence: 99%

Continuous monitoring of the health status of cement-based structures: electrical impedance measurements and remote monitoring solutions

et al. 2021

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<p class="Abstract">The continuous monitoring of cement-based structures and infrastructures is fundamental to optimize their service life and reduce maintenance costs. In the framework of the EnDurCrete project (GA no. 760639), a remote monitoring system based on electrical impedance measurements was developed. Electrical impedance is measured according to the Wenner’s method, using 4-electrode arrays embedded in concrete during casting, selecting alternating current as excitation, to avoid the polarization of both electrode/material interface and of material itself. With this measurement, it is possible to promptly identify events related to contaminants ingress or damages (e.g. cracks formation). Conductive additions are included in some elements to enhance signal-to-noise ratio, as well as the self-sensing properties of concrete. Specifically, a distributed sensor network was implemented<span style="text-decoration: line-through;">,</span> consisting of measurement nodes installed in the elements to be monitored, then connected to a central hub (RS-232 protocol). Nodes are realized with an embedded unit for electrical impedance measurements (EVAL-AD5940BIOZ board with AD5940 chip, by Analog Device) and a digital thermometer (DS18B20 by Maxim Integrated), enclosed in cabinets filled with an IP68 gel against moist-related problems. Data are available on a Cloud through Wi-Fi network or LTE modem, hence can be accessed remotely via a use-friendly multi-platform interface.</p>

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

Cited by 51 publications

References 98 publications

Testing of Materials and Elements in Civil Engineering

Testing of Materials and Elements in Civil Engineering

Non-Destructive and Quantitative Evaluation of Rebar Corrosion by a Vibro-Doppler Radar Method

Continuous monitoring of the health status of cement-based structures: electrical impedance measurements and remote monitoring solutions

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