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Search results for: SAND

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  • Hydraulic conductivity of a biopolymer treated sand

    Publication

    - Year 2015

    This paper presents results of laboratory assessment of creating seepage barriers in a sandy soil using biopolymer additives (bio substance), which consist of polysaccharides and water. Polysaccharides strongly interact with water to produce a viscous suspension. The aim of the conducted work was to investigate the influence of a biosubstance employed in a highly permeable sandy soil. The amount of the biopolymer used in a sample...

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  • Laboratory assessment of permeability of sand and biopolymer mixtures

    Publication

    Laboratory assessment of permeability of sand and biopolymer mixtures. This research presents a method of creating seepage barriers in a sandy soil using biopolymer additives (biosubstance), which consist of polysaccharides and water. Polysaccharides strongly interact with water to produce a viscous suspension. The paper aims to investigate the infl uence of a biosubstance employed in a highly permeable sandy soil. Amount of the...

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  • Strength characteristics of tyre chips-sand mixtures.

    Publication

    - Year 2005

    Badania w aparacie trójosiowego ściskania przy różnej zawartości wagowej kawałków zużytych opon oraz różnym ich ułożeniu w próbce piasku. Badania prowadzono przy dowolnym ułożeniu tych elementów, umieszczeniu ich poziomo oraz w systemie mieszanym. Wyznaczono optymalną zawartość kawałków opon w próbce piasku, przy której występowała maksymalna wytrzymałość na ściskanie.

  • Some geomechanical properties of a biopolymer treated medium sand

    Publication

    - Annals of Warsaw University of Life Sciences-SGGW Land Reclamation - Year 2017

    Some geomechanical properties of a biopolymer treated medium sand. This paper presents a laboratory assessment of geomechanical properties of sandy soil improved by biopolymer application. Additives (biosubstance) consist of polysaccharides and water. Biosubstance used in the project was xanthan gum, which comes from bacteria Xanthomonas campestris. Triaxial shear compression tests and unconfi ned compression tests were carried...

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  • Cavity-expansion approximation for projectile impact and penetration into sand

    Publication
    • V. Kotov
    • A. Bragov
    • V. Balandin
    • L. Igumnov
    • A. Lomunov
    • V. Eremeev
    • A. Cazzani

    - CONTINUUM MECHANICS AND THERMODYNAMICS - Year 2022

    A one-dimensional problem of a spherical cavity expanding at a constant velocity from zero initial radius in an infinite granular medium, which has the first-kind self-similar solution, is considered. We are solving this dynamic spherical cavity-expansion problem to model rigid spheres penetrating into a granular media. Elastic–plastic deformation of the granular media is described in a barotropic approximation, using the high-pressure...

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