Title :
Measurement of the electromagnetic constants of concrete materials by time-domain reflectometry
Author :
Qiwei, Xu ; Lihua, Shi ; Cheng, Gao
Author_Institution :
EMP Lab, Nanjing Eng. Inst., China
Abstract :
A dielectric constant and electrical conductivity measurement system based on time-domain reflectometry (TDR) probes that can be embedded into concrete structures have been designed. The calibration data in distilled water has shown that the measuring system can measure the dielectric constant and conductivity accurately. By using the embedded probes in concrete structures, changes of the electromagnetic properties through the curing stage of Portland concrete specimens are measured and presented in this paper.
Keywords :
UHF measurement; calibration; concrete; curing; electrical conductivity measurement; permittivity measurement; probes; time-domain reflectometry; Portland concrete specimens; TDR probes; TDR test system; concrete structures; curing stage; dielectric constant measurement; electrical conductivity measurement; electromagnetic properties; embedded probes; measurement system; time-domain reflectometry; Building materials; Concrete; Conducting materials; Conductivity measurement; Dielectric constant; Dielectric measurements; Electromagnetic measurements; Probes; Reflectometry; Time domain analysis;
Conference_Titel :
Electromagnetic Compatibility, 2002 3rd International Symposium on
Print_ISBN :
0-7803-7277-8
DOI :
10.1109/ELMAGC.2002.1177412