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

fYear

2002

fDate

21-24 May 2002

Firstpage

230

Lastpage

233

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2002 3rd International Symposium on

Print_ISBN

0-7803-7277-8

Type

conf

DOI

10.1109/ELMAGC.2002.1177412

Filename

1177412