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, A., Contin, J., Fierro, V., Tichno, M.A., Distefano, A., Mariscotti, M.A.J.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0168583X_v73_n4_p531_Ansaldi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0168583X_v73_n4_p531_Ansaldi
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spelling	todo:paper_0168583X_v73_n4_p531_Ansaldi2023-10-03T15:06:33Z The application of gammametry to the study of reinforced concrete Ansaldi, A. Contin, J. Fierro, V. Tichno, M.A. Distefano, A. Mariscotti, M.A.J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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.
format	JOUR
author	Ansaldi, A. Contin, J. Fierro, V. Tichno, M.A. Distefano, A. Mariscotti, M.A.J.
spellingShingle	Ansaldi, A. Contin, J. Fierro, V. Tichno, M.A. Distefano, A. Mariscotti, M.A.J. The application of gammametry to the study of reinforced concrete
author_facet	Ansaldi, A. Contin, J. Fierro, V. Tichno, M.A. Distefano, A. Mariscotti, M.A.J.
author_sort	Ansaldi, A.
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
url	http://hdl.handle.net/20.500.12110/paper_0168583X_v73_n4_p531_Ansaldi
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The application of gammametry to the study of reinforced concrete

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