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dc.contributor.authorMesa Alcantara, Arisleidy
dc.contributor.authorRomero Morales, Enrique Edgar
dc.contributor.authorMokni, Nadia
dc.contributor.authorOlivella Pastallé, Sebastià
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria del Terreny
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationMesa, A. [et al.]. Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures. "E3S Web of Conferences", Octubre 2020, vol. 195, p. 04003:1-04003:7.
dc.description.abstractBinary 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.
dc.format.extent7 p.
dc.publisherEDP Sciences
dc.rightsAttribution 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
dc.subject.lcshRadioactive waste disposal in the ground
dc.subject.lcshBentonite deposits
dc.titleMicrostructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures
dc.subject.lemacResidus radioactius -- Emplaçament
dc.subject.lemacBentonita -- Propietats mecàniques
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorMesa, A.; Romero, E.; Mokni, N.; Olivella, S.
local.citation.publicationNameE3S Web of Conferences

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Attribution 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 3.0 Spain