Development of microwave and impedance spectroscopy methods for in-situ nondestructive evaluation of alkali silica reaction in concrete

Heifetz, Alexander; Bakhtiari, Sasan; Lü, Juan; Aranson, Igor S.; Vinokur, V. M.; Bentivegna, Anthony F.

doi:10.1063/1.4974708

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Microwave spectroscopy can give an immediate response as soon as a sample is in contact with the EM through a sensing structure. Consequently, microwave spectroscopy has emerged in recent years as a novel monitoring technique in the food industry [ 60 , 61 ], healthcare [ 62 ], sports science [ 63 ], built environment [ 64 ], structural analysis [ 65 ], environmental monitoring [ 66 ] and water quality control [ 67 ]. One reason that makes this method highly adaptable is the various physical forms that the sensing structure can take: resonant cavities, waveguides, horn antennas, flexible and planar resonant sensors, depending on the form of MUT.…”

Section: Microwave Spectroscopymentioning

confidence: 99%

Microwave Sensors for In Situ Monitoring of Trace Metals in Polluted Water

Frau

Wylie

Byrne

et al. 2021

Sensors

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Thousands of pollutants are threatening our water supply, putting at risk human and environmental health. Between them, trace metals are of significant concern, due to their high toxicity at low concentrations. Abandoned mining areas are globally one of the major sources of toxic metals. Nowadays, no method can guarantee an immediate response for quantifying these pollutants. In this work, a novel technique based on microwave spectroscopy and planar sensors for in situ real-time monitoring of water quality is described. The sensors were developed to directly probe water samples, and in situ trial measurements were performed in freshwater in four polluted mining areas in the UK. Planar microwave sensors were able detect the water pollution level with an immediate response specifically depicted at three resonant peaks in the GHz range. To the authors’ best knowledge, this is the first time that planar microwave sensors were tested in situ, demonstrating the ability to use this method for classifying more and less polluted water using a multiple-peak approach.

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Section: Microwave Spectroscopymentioning

confidence: 99%

Microwave Sensors for In Situ Monitoring of Trace Metals in Polluted Water

Frau

Wylie

Byrne

et al. 2021

Sensors

View full text Add to dashboard Cite

show abstract

“…To address the technology gap, Argonne is collaborating with a research industry partner to develop methods for in-situ nondestructive evaluation (NDE) of ASR in concrete materials based on electrochemical impedance spectroscopy and microwave dielectric spectroscopy (Heifetz et al 2017). Combined with existing high-resolution imaging techniques, these methods could be used to nondestructively quantify the extent of structural deterioration and identify areas of greatest vulnerability where the most damage has occurred.…”

Section: Structural Materials For Transportation and Nuclear Sectorsmentioning

confidence: 99%