Remanent Magnetization in Portland-Cement-Based Materials

Autores
Bidegain, Juan Carlos; Sinito, Ana M.; Rodríguez, M. E.
Año de publicación
1999
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The purpose of this research is to demonstrate the possibility of applying one geophysical method to studying untraditional systems as is the case with Portland-cement-based materials. The research demonstrates how conventional paleomagnetic methodology can be employed in studying the mode of magnetic recording in present-day industrial materials. Portland-cement admixtures such as fly ashes and furnace slags should be discriminated, because those particles interact in soils and sediments in nature. Moreover, a better undertanding of magnetic remanent acquisition in model materials can serve to improve the interpretation of magnetic remanent acquisition in natural rocks formed a long time ago. The magnetic constituents of Portland-cement paste and mortar acquire a magnetic remanence due to their alignment with the earth's magnetic field at the casting place. This magnetization can be measured using ordinary paleomagnetic techniques. The alignment of the individual magnetic particles accounts for the intensity of the magnetic remanence, which can be increased by adding water and by vibration before setting and hardening. Blast furnace slag admixtures also add to the enhancement of the intensity of remanence. The magnetization of Portland-cement-based materials shows a near linear relationship with the water /cement (w/c) ratios employed in the experimental work; the w/c ratios range between 0.2 – 0.6 in pastes and 0.3 – 0.6 in mortar. Stable remanent magnetization was obtained during the first seven days of setting and hardening, a period necessary for magnetic particles to become locked parallel to the earth's magnetic field. The stability of magnetic remanence predicts the usefulness of the methodology in studying the properties of Portland cement and particularly in the control of iron-bearing admixtures.
Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Geofísica
Ciencias Exactas
Paleomagnetic methods
industrial materials
chemistry
iron-bearing admixtures
water/cement ratio
furnace slag
magnetic susceptibility
remanent magnetization
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/139149

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network_name_str SEDICI (UNLP)
spelling Remanent Magnetization in Portland-Cement-Based MaterialsBidegain, Juan CarlosSinito, Ana M.Rodríguez, M. E.GeofísicaCiencias ExactasPaleomagnetic methodsindustrial materialschemistryiron-bearing admixtureswater/cement ratiofurnace slagmagnetic susceptibilityremanent magnetizationThe purpose of this research is to demonstrate the possibility of applying one geophysical method to studying untraditional systems as is the case with Portland-cement-based materials. The research demonstrates how conventional paleomagnetic methodology can be employed in studying the mode of magnetic recording in present-day industrial materials. Portland-cement admixtures such as fly ashes and furnace slags should be discriminated, because those particles interact in soils and sediments in nature. Moreover, a better undertanding of magnetic remanent acquisition in model materials can serve to improve the interpretation of magnetic remanent acquisition in natural rocks formed a long time ago. The magnetic constituents of Portland-cement paste and mortar acquire a magnetic remanence due to their alignment with the earth's magnetic field at the casting place. This magnetization can be measured using ordinary paleomagnetic techniques. The alignment of the individual magnetic particles accounts for the intensity of the magnetic remanence, which can be increased by adding water and by vibration before setting and hardening. Blast furnace slag admixtures also add to the enhancement of the intensity of remanence. The magnetization of Portland-cement-based materials shows a near linear relationship with the water /cement (w/c) ratios employed in the experimental work; the w/c ratios range between 0.2 – 0.6 in pastes and 0.3 – 0.6 in mortar. Stable remanent magnetization was obtained during the first seven days of setting and hardening, a period necessary for magnetic particles to become locked parallel to the earth's magnetic field. The stability of magnetic remanence predicts the usefulness of the methodology in studying the properties of Portland cement and particularly in the control of iron-bearing admixtures.Laboratorio de Entrenamiento Multidisciplinario para la Investigación TecnológicaFacultad de Ciencias Astronómicas y Geofísicas1999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf289-302http://sedici.unlp.edu.ar/handle/10915/139149enginfo:eu-repo/semantics/altIdentifier/issn/0039-3169info:eu-repo/semantics/altIdentifier/issn/1573-1626info:eu-repo/semantics/altIdentifier/doi/10.1023/a:1023346711700info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:47Zoai:sedici.unlp.edu.ar:10915/139149Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:48.069SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Remanent Magnetization in Portland-Cement-Based Materials
title Remanent Magnetization in Portland-Cement-Based Materials
spellingShingle Remanent Magnetization in Portland-Cement-Based Materials
Bidegain, Juan Carlos
Geofísica
Ciencias Exactas
Paleomagnetic methods
industrial materials
chemistry
iron-bearing admixtures
water/cement ratio
furnace slag
magnetic susceptibility
remanent magnetization
title_short Remanent Magnetization in Portland-Cement-Based Materials
title_full Remanent Magnetization in Portland-Cement-Based Materials
title_fullStr Remanent Magnetization in Portland-Cement-Based Materials
title_full_unstemmed Remanent Magnetization in Portland-Cement-Based Materials
title_sort Remanent Magnetization in Portland-Cement-Based Materials
dc.creator.none.fl_str_mv Bidegain, Juan Carlos
Sinito, Ana M.
Rodríguez, M. E.
author Bidegain, Juan Carlos
author_facet Bidegain, Juan Carlos
Sinito, Ana M.
Rodríguez, M. E.
author_role author
author2 Sinito, Ana M.
Rodríguez, M. E.
author2_role author
author
dc.subject.none.fl_str_mv Geofísica
Ciencias Exactas
Paleomagnetic methods
industrial materials
chemistry
iron-bearing admixtures
water/cement ratio
furnace slag
magnetic susceptibility
remanent magnetization
topic Geofísica
Ciencias Exactas
Paleomagnetic methods
industrial materials
chemistry
iron-bearing admixtures
water/cement ratio
furnace slag
magnetic susceptibility
remanent magnetization
dc.description.none.fl_txt_mv The purpose of this research is to demonstrate the possibility of applying one geophysical method to studying untraditional systems as is the case with Portland-cement-based materials. The research demonstrates how conventional paleomagnetic methodology can be employed in studying the mode of magnetic recording in present-day industrial materials. Portland-cement admixtures such as fly ashes and furnace slags should be discriminated, because those particles interact in soils and sediments in nature. Moreover, a better undertanding of magnetic remanent acquisition in model materials can serve to improve the interpretation of magnetic remanent acquisition in natural rocks formed a long time ago. The magnetic constituents of Portland-cement paste and mortar acquire a magnetic remanence due to their alignment with the earth's magnetic field at the casting place. This magnetization can be measured using ordinary paleomagnetic techniques. The alignment of the individual magnetic particles accounts for the intensity of the magnetic remanence, which can be increased by adding water and by vibration before setting and hardening. Blast furnace slag admixtures also add to the enhancement of the intensity of remanence. The magnetization of Portland-cement-based materials shows a near linear relationship with the water /cement (w/c) ratios employed in the experimental work; the w/c ratios range between 0.2 – 0.6 in pastes and 0.3 – 0.6 in mortar. Stable remanent magnetization was obtained during the first seven days of setting and hardening, a period necessary for magnetic particles to become locked parallel to the earth's magnetic field. The stability of magnetic remanence predicts the usefulness of the methodology in studying the properties of Portland cement and particularly in the control of iron-bearing admixtures.
Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica
Facultad de Ciencias Astronómicas y Geofísicas
description The purpose of this research is to demonstrate the possibility of applying one geophysical method to studying untraditional systems as is the case with Portland-cement-based materials. The research demonstrates how conventional paleomagnetic methodology can be employed in studying the mode of magnetic recording in present-day industrial materials. Portland-cement admixtures such as fly ashes and furnace slags should be discriminated, because those particles interact in soils and sediments in nature. Moreover, a better undertanding of magnetic remanent acquisition in model materials can serve to improve the interpretation of magnetic remanent acquisition in natural rocks formed a long time ago. The magnetic constituents of Portland-cement paste and mortar acquire a magnetic remanence due to their alignment with the earth's magnetic field at the casting place. This magnetization can be measured using ordinary paleomagnetic techniques. The alignment of the individual magnetic particles accounts for the intensity of the magnetic remanence, which can be increased by adding water and by vibration before setting and hardening. Blast furnace slag admixtures also add to the enhancement of the intensity of remanence. The magnetization of Portland-cement-based materials shows a near linear relationship with the water /cement (w/c) ratios employed in the experimental work; the w/c ratios range between 0.2 – 0.6 in pastes and 0.3 – 0.6 in mortar. Stable remanent magnetization was obtained during the first seven days of setting and hardening, a period necessary for magnetic particles to become locked parallel to the earth's magnetic field. The stability of magnetic remanence predicts the usefulness of the methodology in studying the properties of Portland cement and particularly in the control of iron-bearing admixtures.
publishDate 1999
dc.date.none.fl_str_mv 1999
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/139149
url http://sedici.unlp.edu.ar/handle/10915/139149
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/issn/1573-1626
info:eu-repo/semantics/altIdentifier/doi/10.1023/a:1023346711700
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
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