17. A microwave probe for the non-destructive determination of the steel fiber content in concrete slabs

Title: 17. A microwave probe for the non-destructive determination of the steel fiber content in concrete slabs
Author(s): A. Franchois, L. Taerwe, S. Van Damme
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 249 - 256
Total Pages: 8
Nb references: 10
Language: English

Abstract: A non-destructive measuring technique to determine the fiber content in hardened steel fiber reinforced concrete is presented. The technique is based on an accurate open-ended coaxial probe reflectometry method for measuring the effective permittivity of the fiber reinforced concrete and on a mixing rule from the classical homogenization theory for deriving the fiber content from the measured permittivity. A microwave probe has been constructed. Experimental results for reinforced concrete slabs with various fiber contents confirm the potential interest of this technique.

Online publication: 2004-08-30
Publication type : abstract_only
Public price (Euros): 0.00