...H. Yu; D. Yang; Y. Song; J. Huang; X. Qiu This study focuses on characterising the pore space in Tamusu mudstone, a preferred nuclear waste disposal host medium in China, using focused ion beam/scanning electron microscopy (FIB-SEM). The investigation is conducted at the mesoscale, with a sample...

... reserved 2021 clays laboratory tests microscopy Clay minerals are encountered extensively in geotechnical and geoenvironmental applications (Daniels et al., 2003 ; Velasco et al., 2014). Swelling clay minerals are prone to develop cracks under wet−dry, freeze−thaw...

... in low-porosity limestone to better understand and predict its failure mechanisms. corrosion microscopy rocks/rock mechanics ICE Publishing: all rights reserved 2021 20 05 2021 02 07 2021 The rock core samples sheared during the uniaxial and triaxial tests were...

... & Renaud, 1989) 4 τ = 1 − p ln ⁡ ( n ) 12 03 2020 11 06 2020 12 06 2020 ICE Publishing: all rights reserved 2020 microscopy permeability sands The effect that the micro-characteristics of particles have on the hydraulic behaviour of geomaterials has...

... on the swelling properties of bentonite at different densities has been examined through swelling experiments. Scanning electron microscopy (SEM) images were used to study the surface microscopic morphology of biochar bentonite samples. On the basis of the SEM results, the fractal dimension representing...

...-treated Lanton alluvium under (a) ICU and (b) UU triaxial testing conditions microscopy mineralogy soil stabilisation Soft alluvial soils possess low bearing capacities and high compressibilities, presenting difficulties in the design and construction of foundations. Rather than using...

... tamping methods are subjected to axial compression testing. After shearing, the specimens/microstructures are preserved using a resin impregnation process. Subsequent serial sectioning and image acquisition using bright-field microscopy and image stitching when combined with image montage stacking yield...

...F. Cotecchia; S. Guglielmi; F. Cafaro; A. Gens An investigation of the microstructural features of a high-plasticity clay, in both its natural conditions and reconstituted in the laboratory, is described. Scanning electron microscopy is used here to characterise the fabric at different...

... analysis method and with a helium pycnometer 16 11 2018 11 04 2019 12 04 2019 ICE Publishing: all rights reserved 2019 fabric/structure of soils rocks/rock mechanics soft rocks microscopy The extensive exploitation of gypsum rocks, widely used in building...

...C. C. Goodman; F. Vahedifard The main objective of this study is to use a suite of micro-scale tests to characterise the temperature effects on high plasticity clay. The unheated clay was examined using X-ray diffraction, field emission scanning electron microscopy (FESEM) and energy-dispersive X...

... the variables investigated: void ratios limit, friction angles and dilatancy parameters. 13 11 2018 06 02 2019 07 02 2019 ICE Publishing: all rights reserved 2019 laboratory tests microscopy sands shear stength In the last decades, different digital image processing...

... yields a more dispersed AR distribution (Table 1). Fig. 7. Contour plot of Φ showing plausible EI and FI of the PTS particles: (a) ID = 11; (b) ID = 33; (c) group I; (d) group II; (e) group III microscopy particle-scale behaviour sands The significant influence of particle shape...

... rights reserved 2015 chemical properties geology microscopy particle-scale behaviour A set of commonly occurring minerals and rocks was selected from the mineral collection of Cardiff University, UK (Table 1). The selected minerals were grouped into silicates such as quartz and feldspar...

... was reduced due to suffosion, leading to an alternation of preferred coarse particle orientations in the observation field. 19 03 2015 14 05 2015 28 05 2015 ICE Publishing: all rights reserved 2015 erosion fabric/structure of soils microscopy seepage It is known...

... reconstructed particles with random shapes but major morphological features, is successfully generated. This approach can be used in efficient discrete element modelling to further study the micromechanics of natural sands. microscopy particle-scale behaviour sands statistical analysis Discrete...

...L. Wang; M. Bornert; S. Chanchole; E. Héripré; D. Yang This paper reports on a micromechanical investigation of mudstones using a novel experimental method, based on a combination of environmental scanning electron microscopy (ESEM) and digital image correlation techniques. A specifically designed...

... relative humidity. This swelling is not reversible and residual contraction is found after a wetting/drying cycle. These results confirm and provide a possible interpretation of some macroscopic phenomena. clays deformation fabric/structure of soils microscopy particle-scale behaviour radioactive...

... that the shear strength parameters for failure mechanisms, having any significant length, should be based on average values. The letter presents scanning electron microscopy photographs showing the fundamental particles, the results of triaxial tests comparing natural and reconstituted behaviour which show...

... membrane, such as the use of an AFM, scanning electron microscopy (SEM), thermoporometry and biliquid permporometry (Elimelech et al., 1997 ; Kim et al., 1994). AFM studies do not require specimens to be treated with conductive material, which could possibly alter the properties...