Thematische Bibliographien / Bentonite pellet/powder mixture

Inhaltsverzeichnis

  1. Zeitschriftenartikel
  2. Dissertationen
  3. Buchteile
  4. Konferenzberichte

Auswahl der wissenschaftlichen Literatur zum Thema „Bentonite pellet/powder mixture“

Autor: Grafiati
Veröffentlicht am 18. Mai 2024

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Zeitschriftenartikel zum Thema "Bentonite pellet/powder mixture"

1

Darde, Benjamin, Anh Minh Tang, Jean-Michel Pereira, et al. "Modelling the hydromechanical behaviour of expansive granular mixtures upon hydration." E3S Web of Conferences 195 (2020): 02006. http://dx.doi.org/10.1051/e3sconf/202019502006.

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Bentonite pellet-powder mixtures are candidate sealing materials in radioactive waste disposal concepts. The mixture is installed in galleries in dry state as a granular material. The material is progressively hydrated by the pore water of the host rock and becomes homogeneous. Before homogenisation, the granular structure controls the material behaviour. In the present work, a modelling approach able to address particular features of pellet-powder mixtures is introduced. Two domains are considered: i) granular, and ii) homogeneous. The material behaviour before homogenisation is studied throu
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2

Yang, Jin-Wen, Yu-Jun Cui, and Nadia Mokni. "Investigation of water-retention and uniaxial compression behaviour of MX80 bentonite pellet at various suctions." E3S Web of Conferences 382 (2023): 19004. http://dx.doi.org/10.1051/e3sconf/202338219004.

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MX80 bentonite pellet/powder mixture has been regarded as a candidate sealing material in deep geological high-level radioactive waste disposal. As single pellet plays an important role in the global hydromechanical behaviour of the mixture, a series of single pellet compression tests were conducted on cylindershape MX80 bentonite 32-mm pellet after reaching suction equilibrium. The changes in volume and water content during the suction equilibration with the vapour equilibrium technique allowed the water-retention properties to be investigated. X-ray μCT observations were also made on pellets
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3

Alcantara, Arisleidy Mesa, Nadia Mokni, Enrique Romero, and Sebastià Olivella. "Modelling of oedometer tests on pellet-powder bentonite mixtures to support mock-up test analysis." E3S Web of Conferences 195 (2020): 04004. http://dx.doi.org/10.1051/e3sconf/202019504004.

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Bentonite mixtures of MX-80 (80% of high-density pellets and 20% of bentonite powder on a mass basis) have been recently proposed as a candidate material for sealing deep geological disposals of high-level radioactive waste. A loading/unloading oedometer test at constant water content has been performed on this mixture, which has been modelled using the finite element Code_Bright. The constitutive model used to represent the mechanical response is the Barcelona Expansive Model (BExM), since a multi-modal pore size distribution characterises the pore network of the mixture. During compression a
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4

Molinero Guerra, Agustín, Nadia Mokni, Yu-Jun Cui, et al. "Impact of initial structural heterogeneity on long-term swelling behavior of MX80 bentonite pellet/powder mixtures." Canadian Geotechnical Journal 57, no. 9 (2020): 1404–16. http://dx.doi.org/10.1139/cgj-2018-0301.

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To better understand results of SEALEX in situ tests carried out at Tournemire Underground Research Laboratory, the hydromechanical behavior of a pellet/powder MX80 bentonite mixtures prepared at a dry density of 1.49 Mg/m3 were investigated by means of microfocus X-ray computed tomography (μ-CT) observations and laboratory small scale infiltration tests. Radial and axial swelling pressures as well as relative humidity were monitored while wetting. Two configurations were considered: for the first, a pellet/powder mixture was prepared following a specific protocol to minimize initial structura
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5

Alcantara, Arisleidy Mesa, Enrique Romero, Nadia Mokni, and Sebastià Olivella. "Microstructural and hydro-mechanical behaviour of bentonite pellets and powder mixtures." E3S Web of Conferences 195 (2020): 04003. http://dx.doi.org/10.1051/e3sconf/202019504003.

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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 a
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6

Molinero Guerra, Agustín, Yu-Jun Cui, Yong He, et al. "Characterization of water retention, compressibility and swelling properties of a pellet/powder bentonite mixture." Engineering Geology 248 (January 2019): 14–21. http://dx.doi.org/10.1016/j.enggeo.2018.11.005.

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7

Molinero Guerra, Agustín, Yu-Jun Cui, Nadia Mokni, et al. "Investigation of the hydro-mechanical behaviour of a pellet/powder MX80 bentonite mixture using an infiltration column." Engineering Geology 243 (September 2018): 18–25. http://dx.doi.org/10.1016/j.enggeo.2018.06.006.

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8

Imbert, Christophe, and M. Victoria Villar. "Hydro-mechanical response of a bentonite pellets/powder mixture upon infiltration." Applied Clay Science 32, no. 3-4 (2006): 197–209. http://dx.doi.org/10.1016/j.clay.2006.01.005.

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9

Molinero Guerra, Agustín, Patrick Aimedieu, Michel Bornert, et al. "Analysis of the structural changes of a pellet/powder bentonite mixture upon wetting by X-ray computed microtomography." Applied Clay Science 165 (December 2018): 164–69. http://dx.doi.org/10.1016/j.clay.2018.07.043.

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10

Molinero Guerra, Agustín, Nadia Mokni, Pierre Delage, et al. "In-depth characterisation of a mixture composed of powder/pellets MX80 bentonite." Applied Clay Science 135 (January 2017): 538–46. http://dx.doi.org/10.1016/j.clay.2016.10.030.

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Dissertationen zum Thema "Bentonite pellet/powder mixture"

1

Dardé, Benjamin. "Experimental and numerical study of the hydromechanical behaviour of bentonite pellet-powder mixtures." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC1030.

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Les matériaux à base de bentonite sont envisagés pour la réalisation des ouvrages de fermeture dans les concepts de stockage de déchets radioactifs. Dans ce contexte, les matériaux mis en place sous forme de mélanges de granules (pellets) de bentonite sont étudiés car ils présentent moins de contraintes d’installation comparés aux blocs préfabriqués. Les pellets sont disposés dans les galeries à l’état sec et forment un matériau granulaire. Le matériau est humidifié par l’eau issue de la roche encaissante et acquiert une texture homogène. Avant homogénéisation, le caractère granulaire du matér
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2

Molinero, Guerra Agustin. "Caractérisations expérimentale et numérique du comportement hydro-mécanique d'un matériau hétérogène : mélange de poudre/pellets de bentonite." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1022/document.

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Cette thèse porte sur le comportement hydromécanique d’un mélange de poudre et pellets de bentonite MX80 avec une proportion 80/20 en masse sèche. Il s’agit d’un matériau étudié par l’Institut de Radioprotection et de Sûreté Nucléaire (IRSN) dans le cadre du projet SEALEX qui a pour objectif principal la vérification de l’efficacité des dispositifs de scellement ou des barrières ouvragées dans le system du stockage géologique des déchets radioactifs. Le comportement hydromécanique du matériau à différentes échelles a été étudié par différents essais en laboratoire. Premièrement, les changement
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Buchteile zum Thema "Bentonite pellet/powder mixture"

1

Chen, Yang, Yu-Jun Cui, and Agustin Molinero Guerra. "Compression Behavior of Bentonite Powder/Pellet Mixture." In Proceedings of GeoShanghai 2018 International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0095-0_4.

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Konferenzberichte zum Thema "Bentonite pellet/powder mixture"

1

Nguyen, Cao Son. "Study on a Recycling Solution of Basic Oxygen Furnace Slag in Pelletizing Process." In International Conference on Advances in Materials Science 2021. Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-0r1re2.

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Basic oxygen furnace slag (BOF slag) contains high amount of useful oxides such as CaO, MgO, SiO2, etc., therefore, a solution of the slag recycling would be used as a flux in pelletizing process. To understand role of slag in the pellet, this research examines the mechanical, chemical and microstructure properties of the pellets containing various amount of the slag. In the experimental process, the green pellets were made from a mixture of bentonite, iron ore and the slag. The green pellets were sintered in the resistance heating furnace maintaining temperature at 1200 °C for 120 minutes. Th
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2

Nylén, P. E., and R. Bandyopadhyay. "Computational Fluid Dynamics Analysis of Gas and Particle Flow in Flame Spraying." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0237.

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Abstract The industrial flame spraying process has been analyzed by three-dimensional Computational Fluid Dynamics (CFD) simulation. The actual process is employed at the Volvo Aero Corporation for coating of fan and compressor housings. It involves the Metco 6P gun where the fuel, a mixture of acetylene and oxygen, flows through a ring of 16 orifices, while the coating material, a powder of nickel-covered bentonite, is sprayed through the flame with a stream of argon as a carrier gas by a central orifice. The gas flow was simulated as a multi-component chemically reacting incompressible flow.
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