Potential use of Argentine kaolinite clays as pozzolanic material

Autores
Tironi, Alejandra; Trezza, Mónica Adriana; Scian, Alberto Nestor; Irassar, Edgardo Fabián
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Different Argentine kaolinitic clays were selected to study their potential pozzolanic activity. The incidence of several factors such as the origin of deposits (primary or sedimentary clays), mineralogical composition, and the order/disorder degree of kaolinite structure on the pozzolanic activity was analyzed. Five clays were characterized by chemical analysis, X-ray diffraction (XRD), Fourier transformed infra-red spectroscopy (FTIR), differential thermal analysis combined with thermo-gravimetric analysis (DTA/TG), and Scanning Electron Microscopy (SEM). The crystallinity of kaolinite in raw clays was estimated by five indexes: FWHM-001, FWHM-002, Hinckley Index (HI), and R2 on the XRD patterns, whereas the P0 index was determined on the FTIR spectra. Clays were calcined at 700 °C and ground until all mass passed through a 45 μm sieve. Pozzolanic activity was evaluated by the Frattini test and the strength activity index (SAI) at 7, 28 and 90 days using a blended cement containing 30% by weight of calcined clay. Complementary, the presence of remaining Ca(OH)2 in mortar was checked by XRD at 28 and 90 days. Results indicate that four blended cements presented a very good pozzolanic activity evaluated by the Frattini test at 7 and 28 days and they have a Different compressive strength with a SAI N 1 at 90 days. In these blended cements, the Ca(OH)2 released by cement hydrationwas consumed. Analyzing the incidence of factors on pozzolanic activity, it can be concluded that clays containingmore than 50% kaolinite provide enough amount of reactive material, and that the rate of the pozzolanic reaction is improved when the kaolinite mineral present in the clay has a disordered structure.
Fil: Tironi, Alejandra. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria de Olavarria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil; Argentina
Fil: Trezza, Mónica Adriana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria Olavarria; Argentina
Fil: Scian, Alberto Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); Argentina
Fil: Irassar, Edgardo Fabián. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Materia
Kaolinite
Argentine Clays
Pozzolan
Cement
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11310
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/11310
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Potential use of Argentine kaolinite clays as pozzolanic materialTironi, AlejandraTrezza, Mónica AdrianaScian, Alberto NestorIrassar, Edgardo FabiánKaoliniteArgentine ClaysPozzolanCementhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Different Argentine kaolinitic clays were selected to study their potential pozzolanic activity. The incidence of several factors such as the origin of deposits (primary or sedimentary clays), mineralogical composition, and the order/disorder degree of kaolinite structure on the pozzolanic activity was analyzed. Five clays were characterized by chemical analysis, X-ray diffraction (XRD), Fourier transformed infra-red spectroscopy (FTIR), differential thermal analysis combined with thermo-gravimetric analysis (DTA/TG), and Scanning Electron Microscopy (SEM). The crystallinity of kaolinite in raw clays was estimated by five indexes: FWHM-001, FWHM-002, Hinckley Index (HI), and R2 on the XRD patterns, whereas the P0 index was determined on the FTIR spectra. Clays were calcined at 700 °C and ground until all mass passed through a 45 μm sieve. Pozzolanic activity was evaluated by the Frattini test and the strength activity index (SAI) at 7, 28 and 90 days using a blended cement containing 30% by weight of calcined clay. Complementary, the presence of remaining Ca(OH)2 in mortar was checked by XRD at 28 and 90 days. Results indicate that four blended cements presented a very good pozzolanic activity evaluated by the Frattini test at 7 and 28 days and they have a Different compressive strength with a SAI N 1 at 90 days. In these blended cements, the Ca(OH)2 released by cement hydrationwas consumed. Analyzing the incidence of factors on pozzolanic activity, it can be concluded that clays containingmore than 50% kaolinite provide enough amount of reactive material, and that the rate of the pozzolanic reaction is improved when the kaolinite mineral present in the clay has a disordered structure.Fil: Tironi, Alejandra. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria de Olavarria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil; ArgentinaFil: Trezza, Mónica Adriana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria Olavarria; ArgentinaFil: Scian, Alberto Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); ArgentinaFil: Irassar, Edgardo Fabián. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaElsevier Science2014-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11310Tironi, Alejandra; Trezza, Mónica Adriana; Scian, Alberto Nestor; Irassar, Edgardo Fabián; Potential use of Argentine kaolinite clays as pozzolanic material; Elsevier Science; Applied Clay Science; 101; 11-2014; 468-4760169-1317enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169131714003524info:eu-repo/semantics/altIdentifier/doi/ 10.1016/j.clay.2014.09.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:35Zoai:ri.conicet.gov.ar:11336/11310instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:49:36.207CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Potential use of Argentine kaolinite clays as pozzolanic material
title Potential use of Argentine kaolinite clays as pozzolanic material
spellingShingle Potential use of Argentine kaolinite clays as pozzolanic material
Tironi, Alejandra
Kaolinite
Argentine Clays
Pozzolan
Cement
title_short Potential use of Argentine kaolinite clays as pozzolanic material
title_full Potential use of Argentine kaolinite clays as pozzolanic material
title_fullStr Potential use of Argentine kaolinite clays as pozzolanic material
title_full_unstemmed Potential use of Argentine kaolinite clays as pozzolanic material
title_sort Potential use of Argentine kaolinite clays as pozzolanic material
dc.creator.none.fl_str_mv Tironi, Alejandra
Trezza, Mónica Adriana
Scian, Alberto Nestor
Irassar, Edgardo Fabián
author Tironi, Alejandra
author_facet Tironi, Alejandra
Trezza, Mónica Adriana
Scian, Alberto Nestor
Irassar, Edgardo Fabián
author_role author
author2 Trezza, Mónica Adriana
Scian, Alberto Nestor
Irassar, Edgardo Fabián
author2_role author
author
author
dc.subject.none.fl_str_mv Kaolinite
Argentine Clays
Pozzolan
Cement
topic Kaolinite
Argentine Clays
Pozzolan
Cement
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Different Argentine kaolinitic clays were selected to study their potential pozzolanic activity. The incidence of several factors such as the origin of deposits (primary or sedimentary clays), mineralogical composition, and the order/disorder degree of kaolinite structure on the pozzolanic activity was analyzed. Five clays were characterized by chemical analysis, X-ray diffraction (XRD), Fourier transformed infra-red spectroscopy (FTIR), differential thermal analysis combined with thermo-gravimetric analysis (DTA/TG), and Scanning Electron Microscopy (SEM). The crystallinity of kaolinite in raw clays was estimated by five indexes: FWHM-001, FWHM-002, Hinckley Index (HI), and R2 on the XRD patterns, whereas the P0 index was determined on the FTIR spectra. Clays were calcined at 700 °C and ground until all mass passed through a 45 μm sieve. Pozzolanic activity was evaluated by the Frattini test and the strength activity index (SAI) at 7, 28 and 90 days using a blended cement containing 30% by weight of calcined clay. Complementary, the presence of remaining Ca(OH)2 in mortar was checked by XRD at 28 and 90 days. Results indicate that four blended cements presented a very good pozzolanic activity evaluated by the Frattini test at 7 and 28 days and they have a Different compressive strength with a SAI N 1 at 90 days. In these blended cements, the Ca(OH)2 released by cement hydrationwas consumed. Analyzing the incidence of factors on pozzolanic activity, it can be concluded that clays containingmore than 50% kaolinite provide enough amount of reactive material, and that the rate of the pozzolanic reaction is improved when the kaolinite mineral present in the clay has a disordered structure.
Fil: Tironi, Alejandra. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria de Olavarria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil; Argentina
Fil: Trezza, Mónica Adriana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingenieria Olavarria; Argentina
Fil: Scian, Alberto Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro Tecnológico de Recursos Minerales y Cerámica (i); Argentina
Fil: Irassar, Edgardo Fabián. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
description Different Argentine kaolinitic clays were selected to study their potential pozzolanic activity. The incidence of several factors such as the origin of deposits (primary or sedimentary clays), mineralogical composition, and the order/disorder degree of kaolinite structure on the pozzolanic activity was analyzed. Five clays were characterized by chemical analysis, X-ray diffraction (XRD), Fourier transformed infra-red spectroscopy (FTIR), differential thermal analysis combined with thermo-gravimetric analysis (DTA/TG), and Scanning Electron Microscopy (SEM). The crystallinity of kaolinite in raw clays was estimated by five indexes: FWHM-001, FWHM-002, Hinckley Index (HI), and R2 on the XRD patterns, whereas the P0 index was determined on the FTIR spectra. Clays were calcined at 700 °C and ground until all mass passed through a 45 μm sieve. Pozzolanic activity was evaluated by the Frattini test and the strength activity index (SAI) at 7, 28 and 90 days using a blended cement containing 30% by weight of calcined clay. Complementary, the presence of remaining Ca(OH)2 in mortar was checked by XRD at 28 and 90 days. Results indicate that four blended cements presented a very good pozzolanic activity evaluated by the Frattini test at 7 and 28 days and they have a Different compressive strength with a SAI N 1 at 90 days. In these blended cements, the Ca(OH)2 released by cement hydrationwas consumed. Analyzing the incidence of factors on pozzolanic activity, it can be concluded that clays containingmore than 50% kaolinite provide enough amount of reactive material, and that the rate of the pozzolanic reaction is improved when the kaolinite mineral present in the clay has a disordered structure.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/11310
Tironi, Alejandra; Trezza, Mónica Adriana; Scian, Alberto Nestor; Irassar, Edgardo Fabián; Potential use of Argentine kaolinite clays as pozzolanic material; Elsevier Science; Applied Clay Science; 101; 11-2014; 468-476
0169-1317
url http://hdl.handle.net/11336/11310
identifier_str_mv Tironi, Alejandra; Trezza, Mónica Adriana; Scian, Alberto Nestor; Irassar, Edgardo Fabián; Potential use of Argentine kaolinite clays as pozzolanic material; Elsevier Science; Applied Clay Science; 101; 11-2014; 468-476
0169-1317
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169131714003524
info:eu-repo/semantics/altIdentifier/doi/ 10.1016/j.clay.2014.09.009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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