NDT Techniques for Characterizing Alkali-Silica Reaction in Standard Concrete Specimens—a Review

Chen, J.; Leśnicki, Krzysztof J.; Kurtis, Kimberly E.; Kim, Jin‐Yeon; Jacobs, Laurence J.

doi:10.1063/1.3592080

Cited by 2 publications

(3 citation statements)

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“…Nonlinear acoustic techniques have been used for the damage characterization of a variety of materials, whose nonlinear stress-strain relationship can be represented in Eq. (2) [30,31] as…”

Section: Nonlinear Acoustic Methodsmentioning

confidence: 99%

“…Since microcracking is the main cause of nonlinearity in cement-based materials, the hysteresis nonlinearity parameter    dominates the elastic nonlinearity parameters   ,   [31].…”

Section: Nonlinear Acoustic Methodsmentioning

confidence: 99%

“…In standard mortar bars (such as those examined here) or in concrete prisms with hysteresis nonlinearity, the resonance frequency of a sample is the function of the excitation amplitude. As the excitation amplitude increases, the resonance frequency shifts to a lower value [11] and as damage progresses, the increase in the excitation amplitude causes a greater downward shift in the resonance frequency, which may be assessed using the nonlinear impact resonant acoustic spectroscopy (NIRAS) method, [8,11,[31][32][33][34][35] and the hysteresis nonlinearity can be evaluated according to Eq. (3), as…”

Section: Nonlinear Acoustic Methodsmentioning

confidence: 99%

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Detecting alkali-silica reaction: A multi-physics approach

Rashidi

Knapp²,

Hashemi

et al. 2016

Cement and Concrete Composites

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A multi-physics approach for the assessment of alkali silica reaction (ASR) generates new foundational understanding of the nature of the reaction, which ultimately can be used for the development of techniques and tools for the assessment and monitoring of existing concrete structures. The approach combines two nondestructive evaluation techniques: (1) nonlinear acoustic measurements, which are sensitive to microcracking; and (2) microwave materials characterization measurements, which are sensitive to moisture including the transition of water from its free state in the pore solution to a bound state within accumulating ASR gel.Comparison with assessment of expansion and damage rating index obtained from petrographic analysis on standard mortar bars shows a correlation between all of the measures. Specifically, a strong correlation is found between the cumulative average nonlinearity parameter and expansion, and there is also agreement of the microwave measurements with the damage rating index.

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“…Nonlinear acoustic techniques have been used for the damage characterization of a variety of materials, whose nonlinear stress-strain relationship can be represented in Eq. (2) [30,31] as…”

Section: Nonlinear Acoustic Methodsmentioning

confidence: 99%

Section: Nonlinear Acoustic Methodsmentioning

confidence: 99%