Sensor systems for use in reinforced concrete structures

McCarter, William John; Vennesland, Øystein

doi:10.1016/j.conbuildmat.2004.03.008

Cited by 142 publications

(106 citation statements)

References 9 publications

Supporting

Mentioning

101

Contrasting

Unclassified

Order By: Relevance

“…The advances in sensing as well as communication technologies are the backbone of the transition toward a real-time process oriented quality approach. Boyer and Swink [3] articulated that -… the advent of low cost data collection technologies opens opportunities for improved observations of phenomena.‖ In particular embedded sensors have been introduced to monitor long-term serviceability of concrete structures [4]. Akinci et al [5] developed a -formalism‖ for active quality control on construction sites using embedded sensing systems.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Wireless Data Capture inConstruction

Zekavat¹,

Moon²,

Bernold³

2014

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

View full text Add to dashboard Cite

-The tenet of TQM is the use of measurements to monitor an operation in order to avoid poor quality outputs. The construction faces unique barriers to utilize effective technologies to capture critical process data in real time. This paper presents the results of extensive field testing of wireless systems to study the effect of the "noisy" environment on sensing and signal propagation. The findings confirmed the hypothesis that construction activities and equipment impact the performance of such networks. In an experimental application on site, ZigBee network to collect data about temperature at pre-designed locations was integrated with an off-site station. Working with the system led to the conclusion that ZigBee is a viable technology to be implemented on the construction site, reliable and easy to use. The concrete crew receiving real time data on temperature from the embedded sensors were delighted as they have never been provided with such new and important information before.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Wireless Data Capture inConstruction

Zekavat¹,

Moon²,

Bernold³

2014

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

View full text Add to dashboard Cite

show abstract

“…Atkins et al [19] discussed the effect of temperature and the presence of bromides in seawater on the potential readings of Ag/AgCl electrodes. In spite of the doubts about the long-term stability risen in literature [16], Ag/AgCl electrodes still remain a potentially interesting choice in what concerns chloride ion monitoring in reinforced concrete structures [20]. At the same time, all the experiments in literatures were carried out by using saturated calomel or saturated Hg 2 SO 4 electrodes as references.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Performance of All-Solid-State Chloride Sensors in Synthetic Concrete Pore Solutions

Gao

Zhang

Yang

et al. 2010

Sensors

View full text Add to dashboard Cite

Abstract:One type of all-solid-state chloride sensor was fabricated using a MnO 2 electrode and a Ag/AgCl electrode. The potentiometric response of the sensor to chloride in synthetic concrete pore solutions was systematically studied, and the polarization performance was also evaluated. The results show a good linear relationship between the potential reading of the sensor and the logarithm of chloride activity (concentration ranges from 0.05 to 5.0 M), and the potential value remains stable with increasing immersion time. ions have little influence on the potentiometric response of the sensor to chloride, but the pH has a significant influence on the potential value of the sensor at low chloride concentration. The potential reading of the sensor increases linearly with the solution temperature over the range from 5 to 45 C. Meanwhile, an excellent polarization behavior is proven by galvanostatic and potentiodynamic tests. All of the results reveal that the developed sensor has a great potential for monitoring chloride ions in concrete environments.

show abstract

“…It can be clearly indicated from the foregoing that there is an utmost need to develop the reliable, easily manufactured and low-cost Ag/AgCl RE for steel in concrete. Such embeddable electrodes should have the following features: 6,19 it should be rugged and maintenance-free, and have desirable micro-reversibility, negligible liquid junction potential, adequate stability and reliability when compared to a standard reference electrode such as SCE. Besides, it should be capable of being embedded under any orientation, and should not lead to undersirable contamination of surrounding concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Reference electrodes used in concrete structures are described by several authors. 6,7 The ASTM C876 specifies the use of Cu/CuSO 4 as reference electrode for measurement of rebar potential in concrete. 8 However, the leakage of copper sulphate solution can cause contamination of concrete, and the IR drop within the concrete cover can also lead to erroneous consequence.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Characterization of a Solid Embeddable Ag/AgCl Reference Electrode for Corrosion Monitoring in Reinforced Concrete

Jin

Jiang

et al. 2014

Electrochemistry

View full text Add to dashboard Cite

In this study, a new solid embeddable Ag/AgCl reference electrode (RE) was electrochemically investigated for corrosion monitoring in reinforced concrete. The electrode was fabricated by applying the cement mortar as the bottom layer, and the polymer gel as electrolyte. Several electrochemical methods were applied. The experiments were carried out in simulated concrete solutions and concrete. Furthermore, an exposure period over 1 year was used to evaluate the stability of the electrodes embedded in concrete. It has been found that the electrode potential was not obviously affected by the chloride concentration, but affected by the pH value of solution. The Ag/AgCl RE had uniformity in concrete environments. The reversibility of Ag/AgCl RE in all solutions is only within +4 mV. Besides, potentiodynamic tests revealed that the Ag/AgCl RE had a high exchange current density, which was advantageous when using Ag/AgCl RE to conduct resistance tests. Galvanostatic application of 0.2 µA/cm 2 caused little variation of potential with time (~30 mV in several days), indicating the presence of a finite polarization resistance. As a result, the new solid Ag/AgCl RE was suitable as a sensor electrode for concrete structures.

show abstract

Sensor systems for use in reinforced concrete structures

Cited by 142 publications

References 9 publications

Performance Assessment of Wireless Data Capture inConstruction

Performance Assessment of Wireless Data Capture inConstruction

Fabrication and Performance of All-Solid-State Chloride Sensors in Synthetic Concrete Pore Solutions

Electrochemical Characterization of a Solid Embeddable Ag/AgCl Reference Electrode for Corrosion Monitoring in Reinforced Concrete

Contact Info

Product

Resources

About