[HTML][HTML] Swelling ability and behaviour of bentonite-based materials for deep repository engineered barrier systems: Influence of physical, chemical and thermal …

M Alzamel, M Fall, S Haruna - Journal of Rock Mechanics and …, 2022 - Elsevier
Compacted bentonite–sand (B/S) mixtures have been used as a barrier material in
engineered barrier systems (EBSs) of deep geological repositories (DGR) to store nuclear …

Influence of dry density and water salinity on the swelling pressure and hydraulic conductivity of compacted GMZ01 bentonite–sand mixtures

YG Chen, YQ Cai, K Pan, WM Ye, Q Wang - Acta Geotechnica, 2021 - Springer
Compacted Gaomiaozi bentonite–sand mixtures are regarded as attractive buffer/backfill
materials for nuclear waste deep geological disposal. When the mixture blocks are …

Heterogeneous swelling of an isotropically compacted bentonite-based material: experimental observations and modelling

AC Dieudonné, C Gatabin, W Dridi, J Talandier… - Rock Mechanics and …, 2024 - Springer
This paper presents a comprehensive investigation of the swelling behaviour of a
compacted bentonite–sand mixture subjected to hydration under constant volume …

Physical modeling of coupled thermohydraulic behavior of compacted MX80 bentonite during heating

Y Lu, JS McCartney - Geotechnical Testing Journal, 2022 - asmedigitalcollection.asme.org
This paper describes a tank-scale test setup and experimental methodology used to
investigate coupled heat transfer and water flow processes during heating of compacted …

Properties of bentonite-based sealing materials during hydration

MS Bajestani, O Nasir, WT Oh - Minerals, 2023 - mdpi.com
A typical deep geological repository (DGR) design consists of a multi-barrier system,
including the natural host rock and the engineered barrier system. Understanding the …

Effect of sand grain size and boundary condition on the swelling behavior of bentonite–sand mixtures

DW Wang, C Zhu, CS Tang, SJ Li, Q Cheng, XH Pan… - Acta Geotechnica, 2021 - Springer
Deep geological repository is a favorable choice for the long-term disposal of nuclear
wastes. Bentonite–sand mixtures have been proposed as the potential engineered barrier …

[HTML][HTML] At-rest lateral earth pressure of compacted expansive soils: Experimental investigations and prediction approach

Z Han, P Zhang, W Zou, K Fan, SK Vanapalli… - Journal of Rock …, 2024 - Elsevier
This paper presents experimental studies on a compacted expansive soil, from Nanyang,
China for investigating the at-rest lateral earth pressure σ L of expansive soils. The key …

Laboratory test and constitutive model for quantifying the anisotropic swelling behavior of expansive soils

Z Liu, R Zhang, T Lan, Y Zhou, C Huang - Applied Sciences, 2024 - mdpi.com
Expansive soils exhibit directionally dependent swelling that traditional isotropic models fail
to capture. This study investigates the anisotropic swelling characteristics of expansive soil …

[HTML][HTML] Saturated hydraulic conductivity of compacted bentonite–sand mixtures before and after gas migration in artificial seawater

Y Watanabe, S Yokoyama, M Shimbashi… - Journal of Rock …, 2023 - Elsevier
To understand the self-healing property of an engineered barrier for radioactive waste
disposal, the hydraulic conductivity of compacted bentonite–sand mixtures saturated with …

Hydro-mechanical behavior of heated bentonite buffer for geologic disposal of high-level radioactive waste: A bench-scale X-ray computed tomography investigation

C Chang, S Borglin, C Chou, LG Zheng, Y Wu… - Applied Clay …, 2023 - Elsevier
The behavior of heated bentonite buffer is critical for the security and long-term performance
of a geological repository for high-level radioactive waste (HLW). While laboratory column …