Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures

Binary mixtures of high-density MX-80 bentonite pellets (80%) and bentonite powder (20%) at hygroscopic water content have been recently considered as an alternative engineered barrier system for the long-term disposal of radioactive wastes. These mixtures display a dry density of around 1.49 Mg/m3...

Descripción completa

Detalles Bibliográficos
Autores: Mesa Alcantara, Arisleidy, Romero Morales, Enrique Edgar|||0000-0002-4105-8941, Mokni, Nadia, Olivella Pastallé, Sebastià|||0000-0003-3976-4027
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/339970
Acceso en línea:https://hdl.handle.net/2117/339970
https://dx.doi.org/10.1051/e3sconf/202019504003
Access Level:acceso abierto
Palabra clave:Radioactive waste disposal in the ground
Bentonite deposits
Residus radioactius -- Emplaçament
Bentonita -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
id ES_78dd0d3d6495202f9494f04c82b355ea
oai_identifier_str oai:upcommons.upc.edu:2117/339970
network_acronym_str ES
network_name_str España
repository_id_str
spelling Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixturesMesa Alcantara, ArisleidyRomero Morales, Enrique Edgar|||0000-0002-4105-8941Mokni, NadiaOlivella Pastallé, Sebastià|||0000-0003-3976-4027Radioactive waste disposal in the groundBentonite depositsResidus radioactius -- EmplaçamentBentonita -- Propietats mecàniquesÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòlsÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residusBinary mixtures of high-density MX-80 bentonite pellets (80%) and bentonite powder (20%) at hygroscopic water content have been recently considered as an alternative engineered barrier system for the long-term disposal of radioactive wastes. These mixtures display a dry density of around 1.49 Mg/m3 on pouring and present components with multi-modal pore size distributions that significantly evolve during the hydro-mechanical paths. To better understand the hydro-mechanical behaviour of this multiple porosity mixture, the contribution initially focuses on describing the initial state, as well as the main microstructural features determined by mercury intrusion porosimetry tests for the mix and each of the components (pellets and powder). Afterwards, hydro-mechanical results of both components and the mixture are presented. The hydraulic results focus on the water retention and water permeability, while the mechanical tests concentrate on the compressibility properties on loading.EDP Sciences20202020-10-0120212021-02-17journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/339970https://dx.doi.org/10.1051/e3sconf/202019504003reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3399702026-05-27T15:37:01Z
dc.title.none.fl_str_mv Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
title Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
spellingShingle Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
Mesa Alcantara, Arisleidy
Radioactive waste disposal in the ground
Bentonite deposits
Residus radioactius -- Emplaçament
Bentonita -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
title_short Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
title_full Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
title_fullStr Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
title_full_unstemmed Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
title_sort Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
dc.creator.none.fl_str_mv Mesa Alcantara, Arisleidy
Romero Morales, Enrique Edgar|||0000-0002-4105-8941
Mokni, Nadia
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author Mesa Alcantara, Arisleidy
author_facet Mesa Alcantara, Arisleidy
Romero Morales, Enrique Edgar|||0000-0002-4105-8941
Mokni, Nadia
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author_role author
author2 Romero Morales, Enrique Edgar|||0000-0002-4105-8941
Mokni, Nadia
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author2_role author
author
author
dc.subject.none.fl_str_mv Radioactive waste disposal in the ground
Bentonite deposits
Residus radioactius -- Emplaçament
Bentonita -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
topic Radioactive waste disposal in the ground
Bentonite deposits
Residus radioactius -- Emplaçament
Bentonita -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
description Binary mixtures of high-density MX-80 bentonite pellets (80%) and bentonite powder (20%) at hygroscopic water content have been recently considered as an alternative engineered barrier system for the long-term disposal of radioactive wastes. These mixtures display a dry density of around 1.49 Mg/m3 on pouring and present components with multi-modal pore size distributions that significantly evolve during the hydro-mechanical paths. To better understand the hydro-mechanical behaviour of this multiple porosity mixture, the contribution initially focuses on describing the initial state, as well as the main microstructural features determined by mercury intrusion porosimetry tests for the mix and each of the components (pellets and powder). Afterwards, hydro-mechanical results of both components and the mixture are presented. The hydraulic results focus on the water retention and water permeability, while the mechanical tests concentrate on the compressibility properties on loading.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-10-01
2021
2021-02-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/339970
https://dx.doi.org/10.1051/e3sconf/202019504003
url https://hdl.handle.net/2117/339970
https://dx.doi.org/10.1051/e3sconf/202019504003
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411292298608640
score 15,301603

Similares en LA Referencia