WebFeb 1, 2024 · The swelling of clay at high temperature and pressure is important for applications including nuclear waste storage but is not well understood. A molecular dynamics study of the swelling of Na montmorillonite in water at several temperatures (T = 298, 400, and 500 K) and water environment pressures (P e = 5 and 100 MPa) is reported … WebMonte Carlo simulations were used to study the mechanism of swelling of sodium-montmorillonite. The simulations showed that the abundant clay mineral has four stable states at basal spacings of 9.7,12.0,15.5, and 18.3 angstroms, respectively. The amount of swelling and the locations of the stable states of sodium-montmorillonite are in good
Influence of Clay Content and Montmorillonite Content on …
WebNov 17, 2024 · In the present work, we used molecular dynamics simulations to evaluate the distance between montmorillonite layers, and between montmorillonite and a neutral surface for a range of applied pressures as in an oedometer-like setup. The neutral surface was represented by a layer of pyrophyllite. Due to explicit water in the simulation, the … WebNov 24, 2024 · In order to study the adsorption of sulfur dioxide on a montmorillonite (001) surface, a vacuum layer of 15 Å has to be formed above (001) surface of montmorillonite. Three kinds of high-symmetry ... firebase charlie 2 vietnam
(PDF) Study of swelling-shrinkage regularity of montmorillonite …
WebSep 25, 2024 · Expansive clays may continue to swell even after obtaining fully saturated condition due to the continuing montmorillonite hydration process. Expansive clays in this … WebJun 1, 2001 · Study of swelling-shrinkage regularity of montmorillonite crystal and its relation with matric suction June 2001 Science in China Series D Earth Sciences 44(6):498 … Web4 humidity 13–15, salinity of clay dispersion,16,17 or by adding the wanted amount of water.18 For Na- spacings are found with Li+, Mg2+, and Ca2+ as counterions. K+ and Cs+ give quite different basal spacings, presumably because of their larger sizes and weaker tendency to hydrate. In the case of the KBS-3 nuclear waste storage, the montmorillonite … establish a sterile field