Measurement of mortar permittivity during setting using a coplanar waveguide

被引:10
|
作者
Juan-Garcia, P. [1 ]
Torrents, J. M. [1 ]
机构
[1] Tech Univ Catalonia, Dept Elect Engn, Barcelona 08034, Spain
关键词
coplanar waveguide; mortar non-destructive testing; permittivity; TRANSMISSION-LINES; SYSTEM;
D O I
10.1088/0957-0233/21/4/045702
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A sensor based on a coplanar waveguide structure was designed to perform non-destructive tests for material characterization in which the measurement can be done only on one side of the sample. The measurements were compared with the impedance of a capacitor filled with the same material. The permittivity and insertion loss of the sensor showed valuable information about the setting process of a mortar slab during the first 28 days of the hardening process, and a good correlation between both measurements was obtained, so the proposed setup can be useful for structural surveillance and moisture detection in civil structures.
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页数:6
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