Connecting to Concrete: Wireless Monitoring of Chloride ions in Concrete structures

Abbas, Yawar; Have, Bas ten; Hoekstra, Gerrit I.; Douma, Arjan; Bruijn, Douwe S. de; Olthuis, Wouter; Berg, Albert van den

doi:10.1016/j.proeng.2015.08.827

Cited by 11 publications

(12 citation statements)

References 4 publications

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“…Continuous hydration may lead to the increase of concrete alkalinity. Even for fresh concrete, the pH value is able to reach to 12.5 [7]. High concentration hydroxide has a certain inhibitory effect on activity of chloride ions, and there is a certain competitive relationship between phase hydroxide and chloride ion [29].…”

Section: Application Of Ag/agcl Electrode In Mortarmentioning

confidence: 99%

“…In order to continuously monitor steel corrosion, adequate technology with high reliability to reflect chloride ion concentration is a vital element. For determination of distribution and variation of chloride ion in cement-based materials, there are mainly destructive and non-destructive testing methods [6,7]. With regard to non-destructive testing methods, in situ monitoring has the distinct advantage of real-time data acquisition [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Application of Ag/AgCl Sensor for Chloride Monitoring of Mortar under Dry-Wet Cycles

Tian

Zhang

Zhao

et al. 2020

Sensors

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An Ag/AgCl electrode used as a corrosion sensor in a reinforced concrete structure is considered as having good application prospect. However, its performance under complex conditions, such as dry-wet cycle condition, is not affirmed. In the current study, the performance of Ag/AgCl as chloride selective electrode in mortar exposed to dry-wet cycle condition was investigated. A simple Ag/AgCl electrode was prepared and fabricated by electrochemical anodization. These Ag/AgCl electrodes were embedded into a mortar specimen with temperature sensors, humidity sensors and anode ladder monitoring system (ALS). After 28 d curing time, the upper surface of mortar specimen was wetted (with 5% NaCl solution) and dried regularly. The obtained results indicate that Ag/AgCl electrode responds to the ingress of chloride ion, sensitively. The chloride ion concentration variation can be reflected by the potential trend. Furthermore, the balance potential of Ag/AgCl electrodes is influenced by dry-wet cycles. Compared with ALS, it demonstrates that Ag/AgCl electrodes are more sensitive to chloride. The research provides the key element for the specific application of Ag/AgCl electrode for corrosion monitoring in the future.

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Section: Application Of Ag/agcl Electrode In Mortarmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Ag/AgCl Sensor for Chloride Monitoring of Mortar under Dry-Wet Cycles

Tian

Zhang

Zhao

et al. 2020

Sensors

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“…Several publications using electrochemical embedded sensors to monitor corrosion of RCS [46,73,[78][79][80][81][82][83][84][85][86][87][88][89][90] including sensors with wireless communication of data [51,[91][92][93][94][95] have been found. In 2009, Martínez and Andrade [88], published a paper where several examples of recorded data for corrosion potential, electrical resistance and corrosion rates were presented.…”

Section: Corrosion Assessment With Electrochemical Sensorsmentioning

confidence: 99%

“…It s necessary to take into consideration the processing and presentation of the data together with the durability of the sensor itself. Nowadays, embedded sensors are used to measure the following parameters: chloride content [75,78,86,95], pH [106,107], moisture [108,109], i corr [46,73,80,81,88], temperature [93,108,110], potential [89,91], ρ [43,[111][112][113], oxygen transport [72,78] and i gal [82,90].…”

Section: Corrosion Assessment With Electrochemical Sensorsmentioning

confidence: 99%

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

Figueira¹

2017

Applied Sciences

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Several methods for corrosion monitoring of reinforced concrete structures (RCS) have been proposed in the last few decades. These systems may be used either in new, existing or repaired structures. The corrosion monitoring can be performed by different methodologies. These may or may not be destructive, use different degrees of complexity and cost, and provide information on the progression and kinetics of the corrosion phenomena. The destructive methods are limited to sampling. Therefore, these may not be representative of the whole structure, which is extremely important in RCS with large heterogeneities both in terms of materials used and in terms of the exposure environment. Within this context, non-destructive methods have been widely developed, which are intended to provide quick information about the entire structure. Ideally, these systems should be able to detect the corrosion state of the steel inside the concrete, the main causes of corrosion and the evolution of corrosion phenomena over time. This manuscript reviews and summarizes the actual state of the art and the main achievements in the field of electrochemical sensors based on non-destructive methods for corrosion monitoring of RCS in the last few years. The challenges and perspectives in this field will also be discussed.

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“…Many researchers detected different ions and obtained experiment data easier with wireless sensing system [5][6][7][8][9][10][11][12][13][14][15]. The wireless sensing system had been applied to different fields, such as chloride ion detection [5][6][7][8][9][10][11][12][13][14][15][16], hydrogen ion detection [17][18][19][20][21][22][23], glucose detection [23][24][25] and lactate detection [25].…”

Section: Introductionmentioning

confidence: 99%

Sensing Characteristics of Arrayed Flexible Chloride Sensor Based on the XBee Wireless Sensing System

Tseng¹,

Wu²,

Chou³

et al. 2018

Preprint

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Water quality monitoring was an important objective in the surroundings. In this study, we investigated the sensing characteristics of the arrayed flexible chloride sensor with XBee wireless sensing system. The sensitivity and linearity of the wireless chloride sensing devices were 91.6 mV/pCl and 0.988, respectively. The hysteresis voltages were 50.14 mV and 36.71 mV during the cycles of 1 M → 10−1 M →   1 M → 10−3 M → 1 M and 1 M → 10−3 M → 1 M → 10−1 M → 1 M, respectively. The selectivity coefficients of the ClO− ion, ClO4− ion, NO3− ion and I− ion for Cl− ion were 5.0 × 10−2, 1.0 × 10−1, 5.9 × 10−3 and 5.6×10−1, respectively. The sensing characteristics of real time measurement were investigated for dynamic microfluidic. The arrayed flexible chloride sensor was integrated with the microfluidic device, syringe pump and wireless sensing system. The sensitivity and linearity were 273.1 mV/pCl and 0.978 at 35 μL/min, respectively.

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Connecting to Concrete: Wireless Monitoring of Chloride ions in Concrete structures

Cited by 11 publications

References 4 publications

Application of Ag/AgCl Sensor for Chloride Monitoring of Mortar under Dry-Wet Cycles

Application of Ag/AgCl Sensor for Chloride Monitoring of Mortar under Dry-Wet Cycles

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

Sensing Characteristics of Arrayed Flexible Chloride Sensor Based on the XBee Wireless Sensing System

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