NDLI: Ultrasonic nondestructive evaluation of alkali–silica reaction damage in concrete prism samples

Content Provider	Springer Nature Link
Author	Ju, Taeho Achenbach, Jan D. Jacobs, Laurence J. Guimaraes, Maria Qu, Jianmin
Copyright Year	2016
Abstract	This paper presents a study that used ultrasonic techniques to nondestructively evaluate (NDE) the damage induced by alkali-silica reaction (ASR) in concrete. The study was conducted on concrete prism samples that contained reactive aggregates and were subjected to different ASR conditioning. The ultrasonic NDE techniques used in the study included measuring wave speed, attenuation and the amplitude of mixed wave in order to accurately calculate the acoustic nonlinearity parameter. Results of the study show that ASR damage reduces wave speed and increases the wave attenuation in concrete. However, neither wave speed nor attenuation is sensitive enough to ASR damage to be considered a good measure for the quantitative NDE of ASR damage in concrete. The acoustic nonlinearity parameter, on the other hand, shows a greater sensitivity to ASR damage, and can thus be used to nondestructively track ASR damage in concrete. However, due to the significant attenuation caused by ASR induced microcracks and scattering by the aggregates, attenuation measurements also need to be conducted in order to accurately measure the acoustic nonlinearity parameter. Finally, destructive tests were conducted to measure the compressive strength of the concrete prisms subjected to different ASR conditioning. It is found that the measured acoustic nonlinearity parameter is well-correlated with the reduction of the compressive strength induced by ASR damage.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	50
Issue Number	1
e-ISSN	18716873
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-08-17
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Alkali–silica reaction Ultrasonic nondestructive evaluation Wave attenuation Nonlinear wave mixing Structural Mechanics Materials Science Theoretical and Applied Mechanics Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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