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Embedded cement-based piezoelectric sensors for acoustic emission detection in concrete
Qin L.1; Lu Y.2; Li Z.2
2010-05-01
Source PublicationJournal of Materials in Civil Engineering
ISSN08991561
Volume22Issue:12Pages:1323-1327
AbstractIn this research, the feasibility of using embedded cement-based piezoelectric sensors to detect the acoustic emission (AE) activities in concrete has been studied. A sensor is presented that is made with the 0-3 cement-based piezoelectric composite as sensing element. The composite is formed by pressing mixed cement-piezoelectric powder into a penny-shaped thin plate. In the terminology of 0-3, 0 represents the dimension of the piezoelectric particle and 3 stands for the dimensions of the matrix. By adjusting the dosage of the piezoelectric ceramic powder, the properties of the composite can be tailored to suit designated applications. Sensors made of the composite (0-3 sensor) are able to be embedded into concrete and have broadband frequency response. It is shown by a four-point bending test on a concrete beam that the sensors have excellent ability in AE activity detection. High sensitivity is also observed for the embedded sensors. © 2010 ASCE.
KeywordAcoustic emission Composite materials Concrete Piezoelectricity
DOI10.1061/(ASCE)MT.1943-5533.0000133
URLView the original
Language英語
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Cited Times [WOS]:19   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.University of Jinan
2.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Qin L.,Lu Y.,Li Z.. Embedded cement-based piezoelectric sensors for acoustic emission detection in concrete[J]. Journal of Materials in Civil Engineering,2010,22(12):1323-1327.
APA Qin L.,Lu Y.,&Li Z..(2010).Embedded cement-based piezoelectric sensors for acoustic emission detection in concrete.Journal of Materials in Civil Engineering,22(12),1323-1327.
MLA Qin L.,et al."Embedded cement-based piezoelectric sensors for acoustic emission detection in concrete".Journal of Materials in Civil Engineering 22.12(2010):1323-1327.
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