Les argiles Gonflantes – Wannehain, Wannehain. Community. Elimination, par des argiles gonflantes, de l’aflatoxine B1 des milieux contamines []. Masimango, N. Remacle, J. Ramaut, J. Access the full text. Cet article porte sur la caractérisation géologique, minéralogique et géotechnique des argiles marneuses gonflantes de la région de Médéa. Dans une première.

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The clayey material hard and brittle when dry, presents the particularity of changing its consistence as a function of its water content. With the objective of an application to civil engineering, the improved expression of the disjoining pressure at the nanoscale is included in a modified form argipes Terzaghi’s effective stress principle for unsaturated expansive clays recently developed by our group in order to numerically simulate the hydro-mechanical behavior of expansive clays during water uptake.

These results are compared with those obtained for the oedometric swelling tests. Amazon Inspire Digital Educational Resources. Explore the Home Gift Guide. A certain percentage of moisture may transformed it into a plastic and manageable material. This work aims at improving the nanoscale description of expansive clayey soils using the Density Functional Theory DFT.

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Tuesday, December 12, – ComiXology Thousands of Digital Comics. Next the polar nature of the solvent is explicitly modelized by considering water as a Dipolar Hard Sphere fluid. Swelling clay Porous media Electrical double layer Discontinuous solvent Disjoining pressure Interparticle correlations. Ions are finally added in order to complete the Electrical Double Layer description at the nanoscale.

Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Taking into account of the discontinuous nature of the solvent in the mechanical modeling of swelling clays. Amazon Second Chance Pass it on, trade it in, give it a second life. Get fast, free shipping with Amazon Prime. Article Abstract PDF 1. The prediction of swelling potential of soil is possible with empirical methods that based on identification parameters, such as plasticity and particle size, determined during the reconnaissance campaigns.


Current usage metrics About article metrics Return to article. The polar nature of the water solvent is then implicitly taken into account through a Lennard-Jones potential averaging the different types of Van der Waals interactions.

Alexa Actionable Analytics for the Web. There’s a problem loading this menu right now. These two fluid models are studied in the framework of the Density Functional Perturbation Theory in which correlation effects between the fluid molecules are incorporated. Previous article Next article. Editions universitaires europeennes October 19, Language: Data correspond to usage on the plateform after Would you like to tell us about a lower price?

Discover Prime Book Box for Kids. Write a customer review. Citation Van Duy Tran. The results show a concordance between the deferent empirical methods applied.

Amazon Restaurants Food delivery from local restaurants. Water is no longer considered as a continuous solvent but gonlfantes a fluid of individual polar molecules in order to recover existing experimental and modeling results such as the presence of discrete water layers in the interplatelet space or the variation of the disjoining pressure with the interplatelet distance at low hydration level. Get to Know Us. East Dane Designer Men’s Fashion.

Services Same authors – Google Scholar. Share your thoughts with other customers. Metrics Show article metrics. Depending on the particular structure of clay minerals, these modifications of consistence may be accompanied by more or less substantial volume variations, manifested, either, as a sharp increase of volume swelling phenomenon when the water content increases or shrinkage shrinkage phenomenon in period of marked rainfall.


Clay treatment

Amazon Rapids Fun stories for kids on the go. Initial download of the metrics may take a while. Different physical phenomena of increasing complexity are successively considered. The evolution of the clay structure during shrinkage and swelling is followed with the aim of understanding the mechanism of swelling. Impact de la saturation cationique sur l’agencement microscopiques des argiles gonflantes et The current usage metrics is available hours after online publication and is updated daily on week gonflnates.

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Withoutabox Submit to Film Festivals. The finite size of the water molecules is firstly taken into account by modeling water as a Hard Sphere fluid using the Fundamental Measure Theory. Learn more about Amazon Prime.

It is in this aspect that is inscribed this article which gonflanyes the case of an Algerian Site. Read more Read less. This behavior is essentially linked to some of environmental parameters of these soils, for example: