Corrosion of reinforcing steel evaluated by means of concrete resistivity measurements

Morris, Walter; Vico, A; Vázquez, M.; Sánchez, Sara S.

doi:10.1016/s0010-938x(01)00033-6

Cited by 175 publications

(102 citation statements)

References 21 publications

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“…A theory by Glass et al [103] stated that the corrosion rate of reinforced concrete is under anodic control with the anodic reaction being limited by the mortar resistivity. Glass's anodic resistance theory is also supported by studies conducted by Morris et al [60] and Bertolini and Polder [104]. In their investigations, it has been found that concrete resistivity affected not only corrosion rate, but also the corrosion potential [60,104].…”

Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 83%

“…Glass's anodic resistance theory is also supported by studies conducted by Morris et al [60] and Bertolini and Polder [104]. In their investigations, it has been found that concrete resistivity affected not only corrosion rate, but also the corrosion potential [60,104]. The only standardized test method for corrosion monitoring is the ASTM C876 half-cell potential mapping technique [105].…”

Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 94%

“…In experimental studies that attempted to find correlation between concrete electrical resistivity and its durability parameters, other destructive and nondestructive testing techniques from standardized measuring protocol including Rapid Chloride Permeability (RCP) test, Rapid Chloride Migration (RCM) test, Bulk Diffusion (BD) test, and Ultrasonic Pulse Velocity (UPV) were employed. Authors ongoing work also employs 8 Advances in Materials Science and Engineering Chamber with RH > 95% 21 Chamber with RH > 95% 28 [60] Laboratory environment (kept in plastic bag) 14-27, 3-13 Seashore condition 1,000…”

Section: Measurement Methodsmentioning

confidence: 99%

“…In this condition, the corrosion rate can be limited by controlling the flow of ionic current through concrete which is directly related to electrical resistivity of concrete [19]. Therefore, several researchers have attempted to correlate the corrosion probability and corrosion rate to concrete electrical resistivity [60,[103][104][105][106][107][108]. Among all the studies conducted so far, there is an agreement that corrosive environment in reinforced concrete and electrical resistivity of concrete have an inverse relationship.…”

Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 99%

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Electrical Resistivity of Concrete for Durability Evaluation: A Review

Azarsa

Gupta

2017

Advances in Materials Science and Engineering

240

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Degradation processes in reinforced concrete structures that affect durability are partially controlled by transport of aggressive ions through the concrete microstructure. Ions are charged and the ability of concrete to hold out against transfer of ions greatly relies on its electrical resistivity. Hence, a connection could be expected between electrical resistivity of concrete and the deterioration processes such as increase in permeability and corrosion of embedded steel. Through this paper, an extensive literature review has been done to address relationship between concrete electrical resistivity and its certain durability characteristics. These durability characteristics include chloride diffusivity and corrosion of reinforcement as these have major influence on concrete degradation process. Overall, there exists an inverse or direct proportional correlation between these parameters. Evaluated results, from measuring the concrete electrical resistivity, can also be used as a great indicator to identify early age characteristics of fresh concrete and for evaluation of its properties, determination of moisture content, connectivity of the micropores, and even condition assessment of in-service structures. This paper also reviews and assesses research concerning the influential parameters such as environmental conditions and presence of steel rebar and cracks on measuring electrical resistivity of concrete. Moreover, concrete resistivity concept, application, and its various measurement techniques are introduced.

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Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 83%

Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 94%

Section: Measurement Methodsmentioning

confidence: 99%

Section: Correlation Between Electrical Resistivity and Reinforcementmentioning

confidence: 99%

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Electrical Resistivity of Concrete for Durability Evaluation: A Review

Azarsa

Gupta

2017

Advances in Materials Science and Engineering

240

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“…Potential applications of Electrical Resistance Tomography (ERT) in the construction industry are include measurement of the thickness of the concrete cover on top of reinforcement bars location provided by ERT could be utilized in diagnosing the corrosion rate of reinforcement bars 2 . The other researches that have been carried-out 3,4 , show that electrical resistivity measurement can be applied to determine crackings on reinforced concrete structures and also to evaluate the corrosion of reinforcing steel.…”

Section: Introductionmentioning

confidence: 99%

Embedded-based Instrumentation System for Electrical Resistivity Measurement on Conductive Concrete using Four-Electrode Method

Ode¹,

Prawito²,

Sudarmaji³

2014

Proceedings of the 2014 International Conference on Physics and Its Applications

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Instrumentation system for testing of conductive concrete material using four-electrode method has been built. The system can measure material resistivity under the influence of voltage-injection variable, temperature changing in the characterization reactor, as well as the duration of the material characterization. The system uses an ACS-172 electrical current sensor, a DS-1820 temperature sensor to measure the temperature of the material, a SHT-11 sensor to measure the temperature and humidity of the material characterization reactor, and a DS-1307 RTC (RealTime Clock) system for timing system and reference for controlling the duration of the material testing. The standard method of instrument for measure has been developed based on four electrode method. The system of instrumentation can be measured to numerical value of electrical conductivity and resistivity on material. This instrumentation system which has a heating reactor for the material sample, uses AVR-ATmega-128 as the controller element, and also has an computer interface to connect with LabVIEW-National Instrument. This system can be operated in dual-mode, that is automatic and manual mode. The automatic mode can be generated standard configuration based on computer connection (this part can be displayed a numerical data and real-time graph, and also has to recording/saving a numerical data), whereas manual mode only displayed of data without computer connection. The system of instrument has been developed to measure of electrical resistivity/conductivity, temperature and humidity in reactor, electrical current injected, voltage injection and voltage load on sample, and also setting of real-time date/time for automatic control process of characterization with variation of voltage injection, temperature/humidity, and time for material characterization process.

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Korrosionsmonitoring in ungerissenem Stahlbeton in der Schädigungsphase – neue Forschungserkenntnisse

Fraundorfer

Dauberschmidt

2022

Beton und Stahlbetonbau

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Bei der Korrosion im Stahlbetonbau besitzt insbesondere die chloridinduzierte Korrosion ein stark ausgeprägtes Schädigungspotenzial durch den lokalen Schädigungscharakter der dabei auftretenden Lochkorrosion, Bild 1. Anders als bei der carbonatisierungsinduzierten Korro sion sind die Auswirkungen der chloridinduzierten Korrosion nach außen meist nicht oder erst spät erkennbar, da nicht zwangsläufi g Abplatzungen stattfi nden. Mögliche Instandsetzungsverfahren sind in Deutschland in der TR IH [1] geregelt. Bei Stahlbetonbauwerken wird für die Instandsetzung häufi g der chloridbelastete Beton abgetragen und mit einem Betonersatz ergänzt (Verfahren 7.2). Lange Bauzeiten und aufwendige Abstützungsmaßnahmen sind dabei meist die Regel. Daneben existieren auch elektrochemische Instandsetzungsverfahren, bei denen auf einen Abtrag des chloridbelasteten Betons verzichtet werden Stichworte Korrosion; Monitoring; Chloride; Instandsetzung; Bewehrungsstahl; Depassivierung Corrosion Monitoring in Reinforced Concrete Structures -New Research ResultsCorrosion of reinforcing steel caused by de-icing salt and carbonation leads to considerable repair costs in middle Europe every year. The use of corrosion monitoring on reinforced concrete structures opens up new possibilities for interpreting whether damage has already occurred and how quickly it is progressing. Thus, the penetration of the depassivation front into a chloride-loaded structure can be determined, or, if corrosion is already taking place, the magnitude of the damage progress can be estimated. By installing appropriate sensors in existing structures, the repair success can be verifi ed after completion of repair work in accordance with procedure 8.3 of TR IH. To date, however, there is no code of practice for corrosion monitoring. In 2018, a leafl et B12 of the DGZfP was published for the fi rst time, which can serve as a guideline. In addition, a broad WIPANO research project called "KoMICS" on open questions on corrosion monitoring has been carried out in Germany over the past three years. The fi ndings of this project will be incorporated into a DAfStb Guidline, which is currently being edited. Relevant fi ndings of the investigated task part of the research project at the Munich University of Applied Sciences HM are presented below. Keywords corrosion; monitoring; chlorides; repair; reinforcing steel; depassivation Bild 1 Chloridinduzierte Korrosion an freigelegter Bewehrung einer Zwischendecke (links) und eines Stützenfußes (rechts) Chloride-induced corrosion on exposed reinforcement of a ceiling slab (left) and a column base (right)

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Corrosion of reinforcing steel evaluated by means of concrete resistivity measurements

Cited by 175 publications

References 21 publications

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Embedded-based Instrumentation System for Electrical Resistivity Measurement on Conductive Concrete using Four-Electrode Method

Korrosionsmonitoring in ungerissenem Stahlbeton in der Schädigungsphase – neue Forschungserkenntnisse

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