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Some measurements of the permeability of kaolin A. AL-TABBAA and D. M. WOOD (1987). Gbotechnique 37, NO. 4, 499-503 Assistant Professor D. ZnidarliiC and Saad Ali …
This Paper reports an experimental investigation of the vertical and horizontal permeabilities of speswhite kaolin clay. The permeabilities were measured using …
We developed a new procedure for calculating finite-size kaolinite particles, their associations with complex surface chemistry, and the natural flexibility of sheets within a particle using a large-scale atomic/molecular massively parallel simulator. For the first time, all possible particle associations previously described in the literature were obtained …
The permeability of porous media can be anisotropic and furthermore, the extent of anisotropy can be increased as a result of an applied compressive force. ... clay and kaolin. ... Some measurements of the permeability of kaolin. Geotechnique 37(4): 499–503. Article Google Scholar Archie G.E. (1942) The electrical resistivity log as an aid …
where k is the permeability (in m2), h is the fluid viscosity (in Pa s), and P is the hydraulic pressure (in Pa). The permeability tensor is of second-order and symmetric [Scheidegger, 1954, 1956; Marcus, 1962]. Hence the determination of the complete permeability tensor (i.e., its six components) requires only three measurements if the
The grease permeability test allows us to determine the resistance of a paper—or coated paper—to grease permeation through the substrate or substrate-coat system. ... as for the WVTR performance, the beneficial presence of kaolin in the formulation. Despite some high standard deviations (even a small defect that allows …
Kozeny's formula is the best of those quoted, and if an estimate of the "angularity" of the grains is made, permeabilities of sand can be computed to an accuracy of about ±20 per cent. An empirical formula is given which is equally accurate and more simple to use. Computations of permeability by the methods described can be made only on ...
The discussers, D. Znidarcic and Saad Ali Aiban of the Univerity Colorado, present some additional data obtained independently and with different techniques that confirm the results published in the paper. The data presented show that the anisotropy of permeability is completely preserved (even after the sample is compressed isotropically) as long as the …
The unsaturated permeabilities of the kaolin-sand soil mixtures were estimated using three dierent SWCCs. First, the data of the complete measurement of SWCC were used as …
The decomposition behavior of kaolin samples has been carried out by simultaneous TG–DTA experiments. New layer-structure formation during the calcination process was found, and metakaolin compound was detected between 600 and 900 °C. The thermal stability of kaolin samples was then identified by TG–DTA, and the results are …
rated permeability of soil is then multiplied by the estimated unsaturated relative permeability function. As a result, rela-tive permeability equation, best-t SWCC equation, and measured SWCC data are considered as the input factors of any unsaturated permeability estimation models (Rahimi 2015). Table 1 shows a matrix of unsaturated …
In this study, the effects of temperature on mechanical characteristics such as consolidation settlement, shear stiffness, and permeability of kaolin clay were investigated. A modified oedometer apparatus which allows the simultaneous measurements of consolidation settlement, shear wave velocity, and hydraulic conductivity was developed …
2.1 Testing materials. The testing soil was kaolin with an average particle size of 14.5 μm and was classified as CH according to the United Soil Classification System (USCS); some basic properties of the kaolin are shown in Table 1.Two types of nano-biochar with the same composition but different average particle sizes were adopted, …
Some measurements of the permeability of kaolin, A. Al-Tabbaa and D. M. Wood (1987). Gbotechnique 37, No. 4,499-503. On page 499 the footnote regarding the affiliation of the …
Determination of permeability employing FWP—the experimental procedure. In the present study, the following experimental procedure was adopted to determine the permeability of the granular soil: (1) assembling the sample in the cell, (2) saturating the sample, and (3) measuring "k" of the soil sample as described below. Two porous stones …
Mon et al. (2013) challenged the effect of high temperature on clay's permeability and hydraulic conductivity, specifically kaolin clay. They suggested that the effects of temperature on the ...
This is because the relationship between water potential and degree of saturation, named as water retention curve (WRC), reflects the presence of the water in the free and in the adsorbed states. For this purpose, the electrical resistivity of kaolin compacted with different void ratios was measured in samples having different water …
Al-Tabbaa, A. and Wood, D.M. (1987), ' Some measurements of the permeability of kaolin ', Géotechnique 37 (4), 499–503. ... Wood, D.M. (1974), Some aspects of the mechanical behaviour of kaolin under truly triaxial conditions of stress and strain, Ph.D. thesis, Cambridge University.
The permeability of dispersion barriers produced from polyvinyl alcohol (PVOH) and kaolin clay blends coated onto polymeric supports has been studied by employing two different measurement methods ...
Under K0 consolidation condition, the vertical hydraulic conductivity of remolded kaolin decreases from 12.36 × 10 –7 to 7.23 × 10 –7 cm/s, while the horizontal value decreases from 15.85 × 10 –7 to 10.93 × 10 –7 cm/s as the effective stress increasing from 100 to 300 kPa. Accumulated strain caused by traffic loading makes further ...
SOME MEASUREMENTS OF THE PERMEABILITY OF KAOLIN. DISCUSSION A. Al-Tabbaa, D. Wood Published 1 September 1988 Geology Geotechnique The discussers, …
Abstract This study deals with the behavior of composite blends constituted of rigid and impervious grains included in saturated clay paste of kaolin, considered as permeable …
This Paper reports an experimental investigation of the vertical and horizontal permeabilities of speswhite kaolin clay. The permeabilities were measured using falling head …
There was hydrate dissociation in the permeability measurements (Fig. 3a, c, 3e, and 3f). With the increasing time, hydrate dissociation ratio (f diss.) presented an increasing trend totally. In four measurements, the averaged hydrate dissociation ratio (f Averaged diss.) ranged from 1.24% to 2.22%. This hydrate dissociation was caused by …
SOME MEASUREMENTS OF THE PERMEABILITY OF KAOLIN. DISCUSSION. The discussers, D. Znidarcic and Saad Ali Aiban of the Univerity Colorado, present some additional data obtained independently and with different techniques that confirm the results published in the paper. The data presented show that the anisotropy of permeability is …
Some Measurements of the Permeability of Kaolin Geotechnique - United Kingdom doi 10.1680/geot.1988.38.1.163a
Determining these parameters for Speswhite kaolin clay is the object of the present study using resonant column tests and dynamic centrifuge tests with accelerometers and pairs of bender elements.
Some measurements of the permeability of kaolin A. AL-TABBAA and D. M. WOOD (1987). Gbotechnique 37, NO. 4, 499-503 ... For these tests, the speswhite kaolin clay was prepared as a slurry with a water content of 133% and was then consolidated one- dimensionally under an axial stress of 100 kPa in a 203 mm dia. tube. ...
