Grain-scale characterization of water retention behaviour of sand using X-ray CT

G Khaddour, I Riedel, E Andò, P Charrier, P Bésuelle… - Acta Geotechnica, 2018 - Springer
This paper introduces X-ray tomography as an experimental method that allows grain-scale
measurements for both porosity and degree of saturation. A whole configuration and set-up …

Improved region growing method for image segmentation of three-phase materials

Z Cheng, J Wang - Powder technology, 2020 - Elsevier
This paper presents an improved region growing method for the segmentation of images
comprising three phases. It is shown that image segmentation errors usually occur at the …

Quantitative 3D imaging of partially saturated granular materials under uniaxial compression

M Milatz, N Hüsener, E Andò, G Viggiani, J Grabe - Acta geotechnica, 2021 - Springer
Gauging the mechanical effect of partial saturation in granular materials is experimentally
challenging due to the very low suctions resulting from large pores. To this end, a uniaxial …

Morphological transitions for pore water and pore air during drying and wetting processes in partially saturated sand

R Kido, Y Higo, F Takamura, R Morishita, G Khaddour… - Acta Geotechnica, 2020 - Springer
Water retention characteristics are important for modeling the mechanical and hydraulic
behavior of partially saturated sand. It is well known that the soil water characteristic curve …

A double-structure hydromechanical constitutive model for compacted bentonite

Y Qiao, Y Xiao, L Laloui, W Ding, M He - Computers and Geotechnics, 2019 - Elsevier
This paper presents a double-structure elastoplastic constitutive model that can describe the
hydromechanical behavior of compacted bentonite. The model is formulated based on a …

Application of microtomography and petrography techniques for the characterization of porosity of synthetic carbonatic rock minerals before and after acidification …

K Galindo, C Lins, L Guimarães, A Lima, K Silva… - Scientific Reports, 2022 - nature.com
The objective of this work is to physically characterize and analyze synthetic carbonate rocks
through microtomography and petrography techniques, focusing on a comparative analysis …

A microscopic interpretation of hysteresis in the water retention curve of sand

Y Higo, R Kido - Géotechnique, 2023 - icevirtuallibrary.com
The hysteresis observed in a water retention curve was experimentally studied through the
use of X-ray micro-computed tomography (μCT). The CT images were acquired during the …

Multiphase lattice Boltzmann modeling of cyclic water retention behavior in unsaturated sand based on X-ray Computed Tomography

Q Wang, M Milatz, R Hosseini… - Canadian Geotechnical …, 2023 - cdnsciencepub.com
The water retention curve (WRC) defines the relationship between matric suction and
saturation and is a key function for determining the hydro-mechanical behavior of …

In situ X-ray CT imaging of transient water retention experiments with cyclic drainage and imbibition

M Milatz, E Andò, GC Viggiani, S Mora - Open Geomechanics, 2022 - hal.science
The water retention curve (WRC) represents a key function in unsaturated soil mechanics as
it can be applied for the modeling of the hydro-mechanical behaviour of unsaturated soils …

An automated testing device for continuous measurement of the hysteretic water retention curve of granular media

M Milatz - Acta geotechnica, 2020 - Springer
The water retention curve (WRC), representing an important key for the modelling of hydro-
mechanical behaviour of unsaturated soils, is still not fully understood, because it originates …