Search for dissertations about: "hydraulic conductivity"

Showing result 1 - 5 of 51 swedish dissertations containing the words hydraulic conductivity.

  1. 1. Hydraulic Conductivity of Saturated Sand-Bentonite mixtures

    Author : Malin Sundsten; Chalmers University of Technology; []
    Keywords : quarry sand; design; bentonite; landfill barrier; field tests; dry density; foundry green sand; laboratory tests; hydraulic conductivity;

    Abstract : The implementation of the EC directive concerning landfill liners and covers sets stricter technical and environmental requirements for landfill barriers. It is therefore essential to identify suitable materials that fulfil these requirements. READ MORE

  2. 2. Hydraulic conductivity relations in soil and fractured rock : fluid component and phase interaction effects

    Author : Jerker Jarsjö; KTH; []
    Keywords : ;

    Abstract : The hydraulic conductivity of soil and fractured rockdetermines the rate at which fluids and dissolved chemicals flowthrough the subsurface, for given conditions at the boundary.Hence, the estimation of relevant parameters for quantificationof hydraulic conductivity relations constitutes a critical basisfor accurate model predictions. READ MORE

  3. 3. Stabilization-solidification of high water content dredged sediment : Strength, compressibility and durability evaluations

    Author : Gregory Makusa; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dredged sediments; stabilization-solidification; unconfined compressive strength; hydraulic conductivity; durability; freeze-thaw cycles; thaw consolidation; thaw weakening; Cone penetration test; shear strength; Geosynthetic clay liners; Silty Till; cement; Fly ash; granulated blast furnace slag; compressibility; settlement; healing potential; cation exchange; stabilization-solidification; dredged sediments; unconfined compressive strength; hydraulic conductivity; durability; Freeze–Thaw cycling; thaw consolidation; thaw weakening; Cone penetration test; shear strength; Geosynthetic clay liners; Silty Till; cement; Fly ash; slag; settlement; compressibility; cation exchange; Civil engineering and architecture - Geoengineering and mining engineering; Materials science - Construction materials; Samhällsbyggnadsteknik och arkitektur; Geoteknik och gruvteknik; Teknisk materialvetenskap - Konstruktionsmaterial; Geoteknik; Soil Mechanics;

    Abstract : Dredging activities at ports and harbors are inevitable for safe navigation of ships and vessels. The outcomes of dredging are huge volumes of dredged materials, which can range from very fine and contaminated sediments to sands and gravels. The coarse sands and gravels can be directly used in civil engineering applications. READ MORE

  4. 4. Transport Coefficients during Drying of Solids containing Multicomponent Mixtures

    Author : Rafael Gamero; Joaquín Martínez; Evangelos Tsotsas; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; capillary; conduction; convection; diffusion; evaporation; heat transfer; hydraulic conductivity; liquid film; liquid transport; mass transfer; Maxwell-Stefan diffusion coefficients; molar fluxes; phase equilibrium; temperature gradient; ternary mixture; thermodynamic factors; Chemical engineering; Kemiteknik;

    Abstract : This study investigated the transport coefficients involved in mass and heat transfer during the drying of a porous solid partially saturated with multicomponent mixtures.  It included the coefficients governing liquid transport through the solid, the matrix of multicomponent diffusion coefficients in the liquid phase, and the effective thermal conductivity. READ MORE

  5. 5. Impact of hydropower regulation on river water geochemistry and hyporheic exchange

    Author : Dmytro Siergieiev; Luleå tekniska universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; regulated river; hyporheic zone; hydraulic conductivity; clogging layer; Earth sciences - Atmosphere and hydrosphere sciences; Geovetenskap - Atmosfärs- och hydrosfärsvetenskap; Applied Geology; Tillämpad geologi;

    Abstract : Hydropower regulation of rivers exhibits a threat to the riverine ecosystems. Fragmentation of flow, landscape disturbances, and water retention are key features of regulated catchments, resulting in reduced floods and geochemical tr¬ansport, non-natural water level fluctuations, and thus disturbed exchange between the river and the aquifer. READ MORE