Frequency-dependant dielectric parameters of steel fibre reinforced concrete

Karlovsek, Jurij, Wagner, Norman and Scheuermann, Alexandar (2012). Frequency-dependant dielectric parameters of steel fibre reinforced concrete. In: 2012 14th International Conference on Ground Penetrating Radar (GPR), proceedings. 14th International Conference on Ground Penetrating Radar (GPR), Shanghai, China, (510-516). 4-8 June 2012. doi:10.1109/ICGPR.2012.6254918

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Author Karlovsek, Jurij
Wagner, Norman
Scheuermann, Alexandar
Title of paper Frequency-dependant dielectric parameters of steel fibre reinforced concrete
Conference name 14th International Conference on Ground Penetrating Radar (GPR)
Conference location Shanghai, China
Conference dates 4-8 June 2012
Proceedings title 2012 14th International Conference on Ground Penetrating Radar (GPR), proceedings
Place of Publication Hoboken, NJ, United States
Publisher IEEE
Publication Year 2012
Sub-type Fully published paper
DOI 10.1109/ICGPR.2012.6254918
ISBN 9781467326629
9781467326636
Start page 510
End page 516
Total pages 7
Collection year 2013
Language eng
Abstract/Summary Steel Fiber Reinforced Concrete (SFRC) is increasingly being used in civil constructions, especially precast tunnel segment linings. Fibers are mixed with fresh concrete, which results in a more or less random distribution of fibers within the concrete matrix. Because of this, SFRC demonstrates a great challenge when it is being investigated using GPR. In order to investigate the frequency-dependent dielectric parameters of SFRC; (I) PET/CT scans of concrete were conducted to understand the nature of orientation and density of fibers being distributed within the concrete sample and (Π) a two-port coaxial transmission line technique developed for the determination of dielectric spectra of undisturbed soil samples was used to investigate the concrete's complex permittivity with and without steel fibers in the frequency range from 1 MHz to 5 GHz.
Keyword PET/CT
SFRC
Two-port coaxial line
Fiber orientation
Precast segments
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2013 Collection
 
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Created: Wed, 03 Apr 2013, 17:41:30 EST by Dr Alexander Scheuermann on behalf of School of Civil Engineering