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Measurement of reinforcement bar depths and diameters in concrete

Utsi, Vincent / Utsi, Erica

Ground Penetrating Radar (GPR) is one of the methods used for the determination of depth and position of reinforcement bars in concrete. Recent work suggests that GPR can also be used to estimate rebar diameters. This paper presents the results of GPRmax3D simulations for two centre frequencies of GPRs applied to a range of rebar sizes at different depths. This is compared with real measurements of different rebar sizes in air using a 4GHz GPR system. A further comparison is made with measurements of rebar depths and sizes obtained from a practical GPR survey of ceilings in a series of prefabricated blocks of flats originally erected in the late 1960s.

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Measurement of reinforcement bar depths and diameters in concrete

Utsi, Vincent / Utsi, Erica

Ground Penetrating Radar (GPR) is one of the methods used for the determination of depth and position of reinforcement bars in concrete. Recent work suggests that GPR can also be used to estimate rebar diameters. This paper presents the results of GPRmax3D simulations for two centre frequencies of GPRs applied to a range of rebar sizes at different depths. This is compared with real measurements of different rebar sizes in air using a 4GHz GPR system. A further comparison is made with measurements of rebar depths and sizes obtained from a practical GPR survey of ceilings in a series of prefabricated blocks of flats originally erected in the late 1960s.

Measurement of reinforcement bar depths and diameters in concrete

Utsi, Vincent / Utsi, Erica

Ground Penetrating Radar (GPR) is one of the methods used for the determination of depth and position of reinforcement bars in concrete. Recent work suggests that GPR can also be used to estimate rebar diameters. This paper presents the results of GPRmax3D simulations for two centre frequencies of GPRs applied to a range of rebar sizes at different depths. This is compared with real measurements of different rebar sizes in air using a 4GHz GPR system. A further comparison is made with measurements of rebar depths and sizes obtained from a practical GPR survey of ceilings in a series of prefabricated blocks of flats originally erected in the late 1960s.

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Title:

Measurement of reinforcement bar depths and diameters in concrete

Additional title:

Messung der Tiefenlage und des Durchmessers von Armierungsstäben in Beton

Contributors:

Utsi, Vincent (author) / Utsi, Erica (author)

Published in:

International Conference on Ground Penetrating Radar, 10 ; 659-662

Publication date:

2005

Size:

4 Seiten, 11 Bilder, 2 Quellen

ISBN:

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Decke (Raum) , Durchmesser , Frequenzbereich , Lagebestimmung , Längenmessung , Radaranwendung , Simulationsversuch , Stahlbeton , Tiefenmessung , Vergleichsuntersuchung , zerstörungsfreie Prüfung

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