The application of gammametry to the study of reinforced concrete

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The use of a gamma-ray scanner for the examination of reinforcement in concrete structures is discussed. The scanner consists of a 60Co source and a NaI(Tl) scintillator fixed to the source. A mathematical model is introduced to derive the principal features of the technique and to study the influen...

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Autores principales: Ansaldi, Andrea Fabiana, Contin, Julia Eleonor, Fierro, Víctor Eduardo, Tichno, Miguel Adrian, Distefano, Alfredo V., Mariscotti, Mario Alberto Juan
Publicado: 1993
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v73_n4_p531_Ansaldi
http://hdl.handle.net/20.500.12110/paper_0168583X_v73_n4_p531_Ansaldi
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_0168583X_v73_n4_p531_Ansaldi2023-06-08T15:17:54Z The application of gammametry to the study of reinforced concrete Ansaldi, Andrea Fabiana Contin, Julia Eleonor Fierro, Víctor Eduardo Tichno, Miguel Adrian Distefano, Alfredo V. Mariscotti, Mario Alberto Juan The use of a gamma-ray scanner for the examination of reinforcement in concrete structures is discussed. The scanner consists of a 60Co source and a NaI(Tl) scintillator fixed to the source. A mathematical model is introduced to derive the principal features of the technique and to study the influence of the source-detector distance and the detector collimation on the resolution, sensitivity and tomographic properties of this device. An 18 cm thick mock up of a reinforced concrete column was built and scanned. Radii, positions, inclinations of rebars and the density of the sample were determined by fitting model parameters to the data. The results compare quite well with the known specifications of the mock up, showing that even a single one-dimensional scan may yield accurate information about rebars and conditions of a concrete slab. © 1993. Fil:Ansaldi, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Contin, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fierro, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tichno, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Distefano, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mariscotti, M.A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1993 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v73_n4_p531_Ansaldi http://hdl.handle.net/20.500.12110/paper_0168583X_v73_n4_p531_Ansaldi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The use of a gamma-ray scanner for the examination of reinforcement in concrete structures is discussed. The scanner consists of a 60Co source and a NaI(Tl) scintillator fixed to the source. A mathematical model is introduced to derive the principal features of the technique and to study the influence of the source-detector distance and the detector collimation on the resolution, sensitivity and tomographic properties of this device. An 18 cm thick mock up of a reinforced concrete column was built and scanned. Radii, positions, inclinations of rebars and the density of the sample were determined by fitting model parameters to the data. The results compare quite well with the known specifications of the mock up, showing that even a single one-dimensional scan may yield accurate information about rebars and conditions of a concrete slab. © 1993.
author Ansaldi, Andrea Fabiana
Contin, Julia Eleonor
Fierro, Víctor Eduardo
Tichno, Miguel Adrian
Distefano, Alfredo V.
Mariscotti, Mario Alberto Juan
spellingShingle Ansaldi, Andrea Fabiana
Contin, Julia Eleonor
Fierro, Víctor Eduardo
Tichno, Miguel Adrian
Distefano, Alfredo V.
Mariscotti, Mario Alberto Juan
The application of gammametry to the study of reinforced concrete
author_facet Ansaldi, Andrea Fabiana
Contin, Julia Eleonor
Fierro, Víctor Eduardo
Tichno, Miguel Adrian
Distefano, Alfredo V.
Mariscotti, Mario Alberto Juan
author_sort Ansaldi, Andrea Fabiana
title The application of gammametry to the study of reinforced concrete
title_short The application of gammametry to the study of reinforced concrete
title_full The application of gammametry to the study of reinforced concrete
title_fullStr The application of gammametry to the study of reinforced concrete
title_full_unstemmed The application of gammametry to the study of reinforced concrete
title_sort application of gammametry to the study of reinforced concrete
publishDate 1993
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0168583X_v73_n4_p531_Ansaldi
http://hdl.handle.net/20.500.12110/paper_0168583X_v73_n4_p531_Ansaldi
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