Wireless low-cost corrosion sensors for reinforced concrete structures

Dickerson, Nathan P.; Simonen, Jarkko T.; Ardringa, Matthew M.; Wood, Sharon L.; Neikirk, Dean P.

doi:10.1117/12.600011

Cited by 9 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5,6 While the electrochemical and physical approaches provide the average corrosion level over a certain area, the material sacrificial approach is valuable to pin-point corrosion by measuring the corrosion-induced loss of coated materials. [7][8][9][10][11] Fiber optical sensors can be applied for long-term, multi-parameter, and quasi-distributed measurement. 8 In the material sacrificial approach, fiber optic sensors usually measure the light intensity changes induced by the changing thickness of metal film coatings on the cleaved end of an optic fiber or on the outer surface of an uncladded fiber.…”

Section: Introductionmentioning

confidence: 99%

Steel bar corrosion monitoring with long-period fiber grating sensors coated with nano iron/silica particles and polyurethane

Huang

Tang

Liang

et al. 2014

Structural Health Monitoring

View full text Add to dashboard Cite

In this article, a recently proposed long-period fiber grating sensor coated with a thin layer of polyurethane and nano iron/silica particles is further developed and applied to monitor the corrosion process of deformed steel bars. Once calibrated, one coated long-period fiber grating sensor and one uncoated long-period fiber grating sensor for environmental compensation were attached to each of three steel bar samples that were tested in 3.5 wt% NaCl solution for 512 h. The resonant wavelength in long-period fiber grating spectra increased exponentially with immersion time due to corrosion of iron particles and thus reduction in coating thickness. The mass loss rate of steel bar #1 at the completion of corrosion tests (512 h of corrosion time) was correlated with that of sparse iron particles on long-period fiber grating sensor #1 after 130.5 h of immersion. The corrosion rates of long-period fiber grating sensors #2 and #3 were evaluated at 130.5 h and then used as a prediction of the corrosion rates of steel bars #2 and #3. The predicted corrosion rates by the long-period fiber grating sensors #2 and #3 were finally compared with those by potentiodynamic tests. The maximum mass loss prediction error by the long-period fiber grating sensors #2 and #3 is 26%. The coefficients of variation of three corrosion rate measurements are 0.049 by the long-period fiber grating sensors and 0.115 by the potentiodynamic tests, indicating more consistent and reliable measurements with the proposed technology.

show abstract

Section: Introductionmentioning

confidence: 99%

Steel bar corrosion monitoring with long-period fiber grating sensors coated with nano iron/silica particles and polyurethane

Huang

Tang

Liang

et al. 2014

Structural Health Monitoring

View full text Add to dashboard Cite

show abstract

“…Passive, wireless corrosion sensors have been developed to the early detection of corrosion using non invasive techniques and have been proved effective in monitoring localized defect [1][2][3][4][5] . The passive wireless sensors are embedded in concrete, and interrogated by inductively coupled magnetic fields to determine if a corrosion threshold has been reached.…”

Section: Introductionmentioning

confidence: 99%

Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring

Chen

Munukutla

Pasupathy

et al. 2010

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010

Self Cite

View full text Add to dashboard Cite

This paper summarizes ongoing work to develop low-cost, wireless, resonant sensor nets that can be used to monitor corrosion in infrastructure systems. A magnetically coupled sensor array is analyzed using a circuit model. The array acts as a magneto-inductive waveguide and the impedance discontinuities caused by corrosion (or other defects) lead to reflection. The relationship between the relative position of defects and pass band ripples is investigated, providing a technique to determine the location of targets. A configuration for increased sensitivity and a method for defect localization are presented.

show abstract

“…McCarter and Vennesland [ 15 ] have also reviewed sensor systems for use in reinforced concrete systems. Zheng et al [ 21 ] and Dickerson et al [ 22 ] have published studies on the development of new permanent corrosion monitoring systems that provide relevant information on the rate of degradation of reinforced concrete in aggressive environments.…”

Section: Introductionmentioning

confidence: 99%

A Galvanic Sensor for Monitoring the Corrosion Condition of the Concrete Reinforcing Steel: Relationship Between the Galvanic and the Corrosion Currents

Pereira

Figueira

Salta

et al. 2009

Sensors

View full text Add to dashboard Cite

This work reports a study carried out on the design and performance of galvanic and polarization resistance sensors to be embedded in concrete systems for permanent monitoring of the corrosion condition of reinforcing steel, aiming to establish a correlation between the galvanic currents, Igal, and the corrosion currents, Icorr, estimated from the polarization resistance, Rp. Sensors have been tested in saturated Ca(OH)2 aqueous solutions, under a variety of conditions, simulating the most important parameters that can accelerate the corrosion of concrete reinforcing steel, such as carbonation, ingress of chloride ions, presence or absence of O2. For all the conditions, the influence of temperature (20 to 55 °C) has also been considered. From this study, it could be concluded that the galvanic currents are sensitive to the various parameters following a trend similar to that of the Rp values. A relationship between the galvanic and the corrosion current densities was obtained and the limiting values of the Igal, indicative of the state condition of the reinforcing steel for the designed sensor, were established.

show abstract

Wireless low-cost corrosion sensors for reinforced concrete structures

Cited by 9 publications

References 0 publications

Steel bar corrosion monitoring with long-period fiber grating sensors coated with nano iron/silica particles and polyurethane

Steel bar corrosion monitoring with long-period fiber grating sensors coated with nano iron/silica particles and polyurethane

Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring

A Galvanic Sensor for Monitoring the Corrosion Condition of the Concrete Reinforcing Steel: Relationship Between the Galvanic and the Corrosion Currents

Contact Info

Product

Resources

About