Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners

Autores
Musso, Telma Belén; Francisca, Franco Matias; Pettinari, Gisela Roxana; Roehl, K.e.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A natural Cretaceous sodium (Na) bentonite from North Patagonia, Argentine, is considered a potential construction material for landfill liners. It is studied alone and in mixtures with sand. Physical and chemical properties of the Na-bentonite were determined to verify the suitability of this material for the construction of low permeability mineral liners. Hydraulic conductivity measurements were conducted on pure bentonite and on mixtures of poorly graded sand with 3, 6, 9 and 12% of Na-bentonite. Compaction and hydraulic conductivity tests were performed using deionized water and a 1000 mol/m3 CaCl2 solution to determine the effects of a high concentrated saline solution on the hydraulic properties of compacted sand-bentonite mixtures. The experimental results confirm that the pure powdered bentonite meets current specifications to be used as part of a geosynthetic clay liner (GCL), and that ageing effects may affect the hydraulic behavior of this material. Compacted sand-bentonite mixtures required a minimum bentonite content of 6% in order to achieve hydraulic conductivities lower than 1 x 10-9 m/s which is a regular requirement for hydraulic containment liners. However, in contact with a strong saline solution (1000 mol/m3 CaCl2), the permeability of the mixtures increased between three and five orders of magnitude. This indicates that a higher percent of bentonite is required to reach an acceptable hydraulic conductivity value when the mixtures are permeated with a CaCl2 solution. The results show that a new applicability was found for bentonites of regional provenance as well as high reserves which have a naturally very high amount of sodium.
Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Construcciones Civiles; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Roehl, K.e.. Universitat Technische Darmstadt; Alemania
Materia
PERMEABILITY
CLAY
MONTOMORILLONITE
LANDFILL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66501
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66501
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Suitability of a cretaceous natural NA-bentonite as construction material for landfill linersMusso, Telma BelénFrancisca, Franco MatiasPettinari, Gisela RoxanaRoehl, K.e.PERMEABILITYCLAYMONTOMORILLONITELANDFILLhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2A natural Cretaceous sodium (Na) bentonite from North Patagonia, Argentine, is considered a potential construction material for landfill liners. It is studied alone and in mixtures with sand. Physical and chemical properties of the Na-bentonite were determined to verify the suitability of this material for the construction of low permeability mineral liners. Hydraulic conductivity measurements were conducted on pure bentonite and on mixtures of poorly graded sand with 3, 6, 9 and 12% of Na-bentonite. Compaction and hydraulic conductivity tests were performed using deionized water and a 1000 mol/m3 CaCl2 solution to determine the effects of a high concentrated saline solution on the hydraulic properties of compacted sand-bentonite mixtures. The experimental results confirm that the pure powdered bentonite meets current specifications to be used as part of a geosynthetic clay liner (GCL), and that ageing effects may affect the hydraulic behavior of this material. Compacted sand-bentonite mixtures required a minimum bentonite content of 6% in order to achieve hydraulic conductivities lower than 1 x 10-9 m/s which is a regular requirement for hydraulic containment liners. However, in contact with a strong saline solution (1000 mol/m3 CaCl2), the permeability of the mixtures increased between three and five orders of magnitude. This indicates that a higher percent of bentonite is required to reach an acceptable hydraulic conductivity value when the mixtures are permeated with a CaCl2 solution. The results show that a new applicability was found for bentonites of regional provenance as well as high reserves which have a naturally very high amount of sodium.Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; ArgentinaFil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Construcciones Civiles; ArgentinaFil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; ArgentinaFil: Roehl, K.e.. Universitat Technische Darmstadt; AlemaniaGheorghe Asachi Technical University of Iasi2016-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66501Musso, Telma Belén; Francisca, Franco Matias; Pettinari, Gisela Roxana; Roehl, K.e.; Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners; Gheorghe Asachi Technical University of Iasi; Environmental Engineering And Management Journal; 15; 11; 11-2016; 2519-25281582-9596CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.30638/eemj.2016.276info:eu-repo/semantics/altIdentifier/url/http://www.eemj.icpm.tuiasi.ro/pdfs/vol15/no11/21_115_Musso_12.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:48Zoai:ri.conicet.gov.ar:11336/66501instacron: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 09:56:49.145CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
title Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
spellingShingle Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
Musso, Telma Belén
PERMEABILITY
CLAY
MONTOMORILLONITE
LANDFILL
title_short Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
title_full Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
title_fullStr Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
title_full_unstemmed Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
title_sort Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners
dc.creator.none.fl_str_mv Musso, Telma Belén
Francisca, Franco Matias
Pettinari, Gisela Roxana
Roehl, K.e.
author Musso, Telma Belén
author_facet Musso, Telma Belén
Francisca, Franco Matias
Pettinari, Gisela Roxana
Roehl, K.e.
author_role author
author2 Francisca, Franco Matias
Pettinari, Gisela Roxana
Roehl, K.e.
author2_role author
author
author
dc.subject.none.fl_str_mv PERMEABILITY
CLAY
MONTOMORILLONITE
LANDFILL
topic PERMEABILITY
CLAY
MONTOMORILLONITE
LANDFILL
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A natural Cretaceous sodium (Na) bentonite from North Patagonia, Argentine, is considered a potential construction material for landfill liners. It is studied alone and in mixtures with sand. Physical and chemical properties of the Na-bentonite were determined to verify the suitability of this material for the construction of low permeability mineral liners. Hydraulic conductivity measurements were conducted on pure bentonite and on mixtures of poorly graded sand with 3, 6, 9 and 12% of Na-bentonite. Compaction and hydraulic conductivity tests were performed using deionized water and a 1000 mol/m3 CaCl2 solution to determine the effects of a high concentrated saline solution on the hydraulic properties of compacted sand-bentonite mixtures. The experimental results confirm that the pure powdered bentonite meets current specifications to be used as part of a geosynthetic clay liner (GCL), and that ageing effects may affect the hydraulic behavior of this material. Compacted sand-bentonite mixtures required a minimum bentonite content of 6% in order to achieve hydraulic conductivities lower than 1 x 10-9 m/s which is a regular requirement for hydraulic containment liners. However, in contact with a strong saline solution (1000 mol/m3 CaCl2), the permeability of the mixtures increased between three and five orders of magnitude. This indicates that a higher percent of bentonite is required to reach an acceptable hydraulic conductivity value when the mixtures are permeated with a CaCl2 solution. The results show that a new applicability was found for bentonites of regional provenance as well as high reserves which have a naturally very high amount of sodium.
Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Construcciones Civiles; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Roehl, K.e.. Universitat Technische Darmstadt; Alemania
description A natural Cretaceous sodium (Na) bentonite from North Patagonia, Argentine, is considered a potential construction material for landfill liners. It is studied alone and in mixtures with sand. Physical and chemical properties of the Na-bentonite were determined to verify the suitability of this material for the construction of low permeability mineral liners. Hydraulic conductivity measurements were conducted on pure bentonite and on mixtures of poorly graded sand with 3, 6, 9 and 12% of Na-bentonite. Compaction and hydraulic conductivity tests were performed using deionized water and a 1000 mol/m3 CaCl2 solution to determine the effects of a high concentrated saline solution on the hydraulic properties of compacted sand-bentonite mixtures. The experimental results confirm that the pure powdered bentonite meets current specifications to be used as part of a geosynthetic clay liner (GCL), and that ageing effects may affect the hydraulic behavior of this material. Compacted sand-bentonite mixtures required a minimum bentonite content of 6% in order to achieve hydraulic conductivities lower than 1 x 10-9 m/s which is a regular requirement for hydraulic containment liners. However, in contact with a strong saline solution (1000 mol/m3 CaCl2), the permeability of the mixtures increased between three and five orders of magnitude. This indicates that a higher percent of bentonite is required to reach an acceptable hydraulic conductivity value when the mixtures are permeated with a CaCl2 solution. The results show that a new applicability was found for bentonites of regional provenance as well as high reserves which have a naturally very high amount of sodium.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
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/11336/66501
Musso, Telma Belén; Francisca, Franco Matias; Pettinari, Gisela Roxana; Roehl, K.e.; Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners; Gheorghe Asachi Technical University of Iasi; Environmental Engineering And Management Journal; 15; 11; 11-2016; 2519-2528
1582-9596
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66501
identifier_str_mv Musso, Telma Belén; Francisca, Franco Matias; Pettinari, Gisela Roxana; Roehl, K.e.; Suitability of a cretaceous natural NA-bentonite as construction material for landfill liners; Gheorghe Asachi Technical University of Iasi; Environmental Engineering And Management Journal; 15; 11; 11-2016; 2519-2528
1582-9596
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.30638/eemj.2016.276
info:eu-repo/semantics/altIdentifier/url/http://www.eemj.icpm.tuiasi.ro/pdfs/vol15/no11/21_115_Musso_12.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Gheorghe Asachi Technical University of Iasi
publisher.none.fl_str_mv Gheorghe Asachi Technical University of Iasi
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
_version_ 1842269425644863488
score 13.13397

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