...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...

... 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 and loading−unloading cycles, which...

...: 1 n 0 = ( W sat − W dry ) / γ w V sample 20 05 2021 02 07 2021 ICE Publishing: all rights reserved 2021 corrosion microscopy rocks/rock mechanics Limestone is one of the most common types of karstic rocks. During...

... method to estimate k while a porosity-dependent equation is proposed to estimate the tortuosity for different shaped materials. ICE Publishing: all rights reserved 2020 microscopy permeability sands The effect that the micro-characteristics of particles have...

... 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...

... this study have the potential to contribute towards improving current practices for modelling cemented soils and ultimately making geotechnical designs involving deep soil mixing less conservative. microscopy mineralogy soil stabilisation From Fig. 2(a) , stabilisation and p...

... 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...

... 2018 11 04 2019 12 04 2019 ICE Publishing: all rights reserved 2019 fabric/structure of soils rocks/rock mechanics soft rocks microscopy Table 3. Uniaxial strength (UCS), method used for the strain measure, tangential Young's modulus (E_{t), grain-size}...

...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. laboratory tests microscopy sands shear stength In the last decades, different digital image processing techniques have been used to access the scale of the single grain of sand to bridge the gap between...

... | Q 1 ~ AR ) p ( Q 2 AR FI , EI | Q 2 ~ AR ) ⋯ p ( σ AR FI , EI | σ ~ AR ) microscopy particle-scale behaviour sands The significant influence of particle shape on the mechanical responses...

... to a particle's silhouette (Fig. 1). The value of sphericity (S) is the ratio of perimeters for a given area (equation (3)) and is equivalent to the ‘degree of circularity’ defined by Wadell (1933) chemical properties geology microscopy particle-scale behaviour Commonly occurring minerals...

... threw light on the design of embankment core materials. 19 03 2015 14 05 2015 28 05 2015 ICE Publishing: all rights reserved 2015 erosion fabric/structure of soils microscopy seepage As indicated in Table 2 , specimen volumes were reduced due to suffosion...

... containing a large number of randomly shaped particles while representing the major morphological features of the real sand particles. 29 9 2014 9 12 2014 ICE Publishing: all rights reserved 2015 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...

... 10⁻³. clays deformation fabric/structure of soils microscopy particle-scale behaviour radioactive waste disposal In the context of high-level radioactive waste disposal, the hydromechanical behaviour of argillite has been intensively investigated in recent decades in view...

... 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...

... laboratory tests microscopy suction In the laboratory, suction of soils can be controlled by the osmotic technique. A soil specimen is brought in contact with a solution of polyethylene glycol (PEG) of predetermined molecular weight separated by a semi-permeable membrane. By varying...