DocumentCode
3462684
Title
Void Detection in Grout-Filled Sheath Tube by RF Propagation
Author
Murai, Hiromichi ; Fukazawa, Nobuhiro ; Suzuki, Toshitatsu ; Yamagami, Yuki ; Sugimoto, Kenichi ; Watanabe, Yasuo ; Takagaki, Nobuyuki ; Sakuma, Mitsumasa ; Asami, Shigeo
Author_Institution
General Media & Computers, Ltd., Greenhill Nishinakanobu Bldg. F4, 1-3-19, Nishinakanobu, Shinagawa-ku, Tokyo, 142-0054, JAPAN. email: hmurai@agate.plala.or.jp
fYear
2006
fDate
24-26 May 2006
Firstpage
1
Lastpage
4
Abstract
A grout-filled sheath tube is a key part of prestressed concrete (PC) for strength and durability, and voids in grout endanger PC structures. This paper is to report the initial investigation on void detection by RF reflection through sheath tube. The content includes the results of simulation, void detection experiment on model sheath tube, and measurement of dielectric constant of grout. These results indicate positive evidence.
Keywords
Bridges; Coaxial components; Concrete; Conductors; Impedance; Radio frequency; Reflection; Steel; Transmission lines; Wire;
fLanguage
English
Publisher
ieee
Conference_Titel
Radar Symposium, 2006. IRS 2006. International
Conference_Location
Krakow, Poland
Print_ISBN
978-83-7207-621-2
Type
conf
DOI
10.1109/IRS.2006.4338055
Filename
4338055
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