Results 31 to 40 of about 3,473 (205)

Kriging-based reliability analysis of the long-term stability of a deep drift constructed in the Callovo-Oxfordian claystone

Journal of Rock Mechanics and Geotechnical Engineering, 2021
Callovo-Oxfordian (COx) claystone has been considered as a potential host rock for geological radioactive waste disposal in France (Cigéo project). During the exploitation phase (100 years), the stability of drifts (e.g.
Ngoc-Tuyen Tran, Duc-Phi Do, Dashnor Hoxha, Minh-Ngoc Vu, Gilles Armand   +4 more
doaj   +1 more source

5-year chemico-physical evolution of concrete–claystone interfaces, Mont Terri rock laboratory (Switzerland) [PDF]

, 2017
The Cement–Opalinus Clay Interaction (CI) Experiment at the Mont Terri rock laboratory is a long-term passive diffusion–reaction experiment between contrasting materials of relevance to engineered barrier systems/near-field for deep disposal of ...
Cloet, Veerle, Shibata, Masahito, Cathérine Lerouge, Miyoshi,Satoru, Satoru Miyoshi, Otake,Tsubasa, Fukaya, Masaaki, Fukaya,Masaaki, Tsubasa Otake, Andreas Jenni, Lothenbach,Babara, Francis Claret, Lothenbach, Babara, Kimura,Yukinobu, Urs Mäder, Babara Lothenbach, Mäder,Urs, Claret,Francis, Gaboreau,Stephane, Stephane Gaboreau, Claret, Francis, Veerle Cloet, Masaaki Fukaya, Cloet,Veerle, Lerouge,Catherine, Jenni, Andreas, Masahito Shibata, Mäder, Urs, Jenni,Andreas, Gaboreau, Stephane, Lerouge, Cathérine, Kimura, Yukinobu, Otake, Tsubasa, Miyoshi, Satoru, Yukinobu Kimura, Shibata,Masahito   +35 more
core   +1 more source

Environmental degradation of claystones

Géotechnique, 2014
The paper presents the results of a comprehensive experimental programme carried out to study the effects of relative humidity cycling on the degradation of argillaceous rocks. Lilla claystone, a low-porosity Tertiary rock, was used for this purpose.
Pineda, J. A., Alonso, E. E., Romero, E.
openaire   +2 more sources

Manufacturing Perforated and Ordinary Bricks Using Injana Claystone Exposed in The Middle of Iraq

Iraqi Geological Journal, 2021
This study aims to use claystone beds exposed in the Injana Formation (Late Miocene) at Karbala-Najaf plateau, middle of Iraq for the manufacturing of perforated and ordinary bricks.
Awad, Ali
doaj   +1 more source

Experimental Investigation and Modeling of the Hydraulic Conductivity of Saturated Bentonite–Claystone Mixture

, 2020
International audienceMixtures composed of MX80 bentonite and crushed Callovo-Oxfordian (COx) claystone have been considered as one of the promising sealing/backfilling materials in French deep geological disposal for radioactive waste.
Cui, Yu-Jun, Talandier, Jean, Conil, Nathalie, Cui, Yu Jun, Zeng, Zhixiong   +4 more
core   +1 more source

Matéria-prima da formação Corumbataí na região do pólo cerâmico de Santa Gertrudes, SP, com características naturais para fabricação de argila expandida Sedimentary rocks from Corumbataí formation (Paraná basin, Brazil) with natural characteristics to produce expanded clay lightweight aggregate

Cerâmica, 2012
Estudou-se um material da base da Formação Corumbataí, proveniente de uma mineração de argila, que apresenta restrições de uso em cerâmica devido à sua dureza e, principalmente, ao alto conteúdo de matéria orgânica.
M. M. T. Moreno, A. Zanardo, R. R. Rocha, C. D. Roveri   +3 more
doaj   +1 more source

Coupled stress-suction changes in the Callovo-Oxfordian claystone [PDF]

E3S Web of Conferences, 2023
Some (saturated) claystones, considered as host rocks for deep radioactive waste disposal, are sensitive to drying and wetting. Wetting may result in swelling and damage during the resaturation of specimens for mechanical testing.
Braun Philipp, Delage Pierre, Ghabezloo Siavash, Talandier Jean   +3 more
doaj   +1 more source

Beneficiation of Low Grade Calcium Bentonite Claystone [PDF]

, 2018
The beneficiation of Ca-bentonite claystone has been studied with dispersion sedimentation technique using polyionic salts as dispersant.The claystone is located in the Western Desert of Iraq.
Ekhlas Abdullah, Hijran Toama, Abdul-Wahab Al-Ajeel   +2 more
core   +1 more source

A note on the duration of claystone exploration programs

Safety of Nuclear Waste Disposal, 2023
Abstract. In a recent report, the German Federal Company for Radioactive Waste Disposal (BGE) estimated the probable duration of exploration activities within potential siting regions (BGE, 2022). Based on many years of expertise regarding the exploration of the subsurface, we outline in this contribution that the BGE (2022) likely underestimates the ...
Thomas Mann, Bernhard Schuck, Tilo Kneuker, Lukas Pollok, André Bornemann, Jochen Erbacher   +5 more
openaire   +2 more sources

Swelling behavior of unsaturated claystone/ bentonite mixtures

, 2020
This laboratory experimental program investigated the impact of variations in the expansive mineral content, the grain size distribution of employed bentonite, the initial dry density and the selected hydration path on the water retention characteristics
Olivier Cuisinier, Nathalie Conil, Marvin Middelhoff, Middelhoff, Marvin, Cuisinier, Olivier, Talandier, Jean, Farimah Masrouri, Conil, Nathalie, Jean Talandier, Masrouri, Farimah   +9 more
core   +1 more source