&lt;title&gt;Corrosion monitoring sensors for durability assessment of concrete structures&lt;/title&gt;

Baessler, Ralph; Mietz, J.; Raupach, Michael; Klinghoffer, Oskar

doi:10.1117/12.383168

Cited by 7 publications

(4 citation statements)

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“…In addition, the practical uncertainties when testing on site should be taken into account, e.g., the actual área of the reinforcement being polarized and the variation over time in corrosión rates related to temperature and moisture variations. In the same article, 29 it was also mentioned that in passive reinforcement áreas the Galvapuise will overestimate the corrosión rate by a factor of 3 to 4 times. Experimental results here, and other results published by other authors, 30 sion rate measurement is more than 3 to 4 times the valúes measured by the other devices, and there is no constant factor between the results provided by Galvapulse and those of the Gecors.…”

Section: Corrosión Rate Measurementsmentioning

confidence: 99%

“…Other authors 29 determined that Galvapuise in anodic áreas is accurate and well within a factor of two for estimating the corrosión rate. In addition, the practical uncertainties when testing on site should be taken into account, e.g., the actual área of the reinforcement being polarized and the variation over time in corrosión rates related to temperature and moisture variations.…”

Section: Corrosión Rate Measurementsmentioning

confidence: 99%

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Corrosion-Inhibitor Efficiency Control: Comparison by Means of Different Portable Corrosion Rate Meters

et al. 2010

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Section: Corrosión Rate Measurementsmentioning

confidence: 99%

Section: Corrosión Rate Measurementsmentioning

confidence: 99%

Corrosion-Inhibitor Efficiency Control: Comparison by Means of Different Portable Corrosion Rate Meters

et al. 2010

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“…Developed resistivity instruments used on concrete include embedded sensors [36,37] as well as surface applied devices [18].Concerning the saturation degree and the ionic content, although the use of DC-electrical resistivity measurements to assess moisture and ionic contents is fairly common in the fields near-surface geophysics applied to soil science (e.g. [38]), and hydrological or environmental studies (e.g.…”

Section: Introductionmentioning

confidence: 99%

Determining chloride content profiles in concrete using an electrical resistivity tomography device

Fares¹,

Villain²,

Bonnet

et al. 2018

Cement and Concrete Composites

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Chloride penetration in concrete can lead to steel corrosion which is one of the major pathologies affecting reinforced concrete's durability. The development of methods to investigate chloride penetration is essential to predict and update the service life of the structure. A non-destructive (ND) DC-electrical technique is used in this study: this Electrical Resistivity Tomography (ERT) device is arranged in a Wenner configuration and measures apparent resistivities. Apparent resistivities are then inverted in order to obtain a resistivity profile versus depth. In parallel, a calibration method relating the resistivity to the chloride content for each type of concrete is used to obtain the chloride profile versus depth. This methodology was applied to a chloride diffusion experimental program on two concrete formulations and one mortar. The profiles evaluated by NDT are then compared to those obtained by a destructive method (potentiometric titration). Both types of profile fit relatively well, thus, the presented methodology is validated for determining chloride content profiles by means of a non-destructive ERT device. The evaluation of the uncertainty range of successive processes (measurement, inversion and calibration) underlines the importance on including the uncertainties in the interpretation of the ND profiles in future research.

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“…To make an electrical resistivity measurement, it is possible to carry out either a surface measurement [27,28] or a measurement in depth using an embedded device [4,29]. The use of embedded sensors offers the possibility of evaluating the concrete resistivity throughout a large thickness of the structure without the inherent loss of resolution with depth.…”

Section: Electrical Resistivity Measurementsmentioning

confidence: 99%

Temperature Effect on Electrical Resistivity Measurement Using an Embedded Sensor to Estimate Concrete Water Content

et al. 2022

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Concrete resistivity measurements strongly depend on the temperature and the water content of the structure. In this paper, a study of the effect of the temperature and saturation degree on electrical resistivity measurement is carried out using an embedded printed circuit board sensor to estimate water content profiles in concrete structures. Resistivity measurements are performed at temperatures between 20 and 60 °C. Experimental results are presented and analyzed in light of well-established empirical models. Calibration curves that link the electrical resistivity to the degree of saturation at a given temperature are discussed. Arrhenius laws that depend on the degree of saturation can be used to fit our data. In the perspective of the instrumentation and monitoring of concrete structure in real conditions, it is important to master the temperature correction laws of resistivity measurement to evaluate the gradients of water saturation degree.

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<title>Corrosion monitoring sensors for durability assessment of concrete structures</title>

Cited by 7 publications

References 0 publications

Corrosion-Inhibitor Efficiency Control: Comparison by Means of Different Portable Corrosion Rate Meters

Corrosion-Inhibitor Efficiency Control: Comparison by Means of Different Portable Corrosion Rate Meters

Determining chloride content profiles in concrete using an electrical resistivity tomography device

Temperature Effect on Electrical Resistivity Measurement Using an Embedded Sensor to Estimate Concrete Water Content

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