Closeclose Reset Make one or more selections to narrow your search Help help
  • Pass your mouse over the options below, and click on the name to make your selection and filter, narrowing down your selections. Click again to remove the filter or press "RESET".
  • Where there is a ( ) sign while you hover your mouse, that refers to a category which contains selectable items. Click to expand and click again to collapse the list.
  • Click on the "more >" sign ( ) to view more information about the specific element.
Our Βusinesses
  • more
    Imerys Absorbents
  • more
    Steel Casting Fluxes
  • more
    Civil Engineering Additives
  • more
    Metalcasting Additives
  • more
    Bentonite & Perlite Intermediates
Our Applications
  • more
    Ceiling Tiles & Boards
    • more
      Boards
    • more
      Ceiling Tiles
  • more
    Civil Engineering
    • more
      Diaphragm/Slurry Wall
    • more
      Horizontal Directional Drilling
    • more
      Landfill and Sealing Liners
    • more
      Pipe Jacking
    • more
      Shield Tunnelling
  • more
    Construction materials
    • more
      Cement
    • more
      Concrete
    • more
      Plasters & Mortars
  • more
    Food – Feed
    • more
      Horticulture
    • more
      Phosphates
  • more
    Foundry
    • more
      Core Sand Binders and Additives
    • more
      Customer Support
    • more
      Foundry Auxiliaries
    • more
      Green Sand Additives
    • more
      Technical Support
  • more
    Glass & Ceramics
    • more
      Cryogenics
    • more
      Ironmaking
    • more
      Oil & Gas Drilling
    • more
      Oilfield, agricultural & other industrial applications
    • more
      Pet Litter
    • more
      Steelmaking
    Our Natural Resources
    • more
      Bentonite
    • more
      Moler
    • more
      Perlite
    • more
      Pozzolan
    • more
      Zeolite
    Our Industrial Solutions
    • more
      Bentonite Clumping Pet Litter
    • more
      Blends
    • more
      Casting Fluxes
    • more
      Cement Stable Bentonite
    • more
      Civil Engineering Flocculants
    • more
      Clumping, Non-clumping and Organic Pet Litter
    • more
      Construction Pozzolan
    • more
      Core Sand Additives
    • more
      Covering Materials
    • more
      Drilling Bentonite
    • more
      ENVIBOND® System
    • more
      Green Molding Sand Expertise
    • more
      HDD Bentonite
    • more
      Horticultural Raw Perlite
    • more
      Horticultural Zeolite
    • more
      Inorganic Core Sand Binders
    • more
      Iron Ore Pelletizing Bentonite
    • more
      Laboratory Analysis
    • more
      Lustrous Carbon Formers
    • more
      Metallurgical Active Slags
    • more
      Micrasil®
    • more
      Mold Flux Feeders
    • more
      Moulding Sand Binders
    • more
      Oilfield, agricultural & other industrial products
    • more
      Other Foundry Products
    • more
      Phosphate Production Additive
    • more
      Pipe Jacking Bentonite
    • more
      Raw Graded Perlite
    • more
      RIKO®
    • more
      Sealing Bentonite
    • more
      Service Lab Analysis Database
    • more
      Slag Binders
    • more
      Slurry Wall Bentonite
    • more
      Technical Support and Innovation
    • more
      Tunneling Bentonite
    • more
      Zeolite Pet Litter

    Landfill and Sealing Liners

    Landfill Sealing Bentonite Application

    Imerys Civil Engineering offers Sealing Bentonites, which come in a range of specifications for a variety of sealing applications for landfills, lakes and waste deposits as well as in earth construction and water engineering. Bentonite quality and installation technique will vary depending on a number of factors, including local soil quality and the presence or potential presence of pollution and any accompanying safety requirements.

    Since the advent of bentonite as a landfill sealing material in the U.S. in the 1930s, the technology has evolved into a range of highly advanced applications. But the principle is the same: Bentonite has the ability to absorb seven to eight times its weight in water and retain the absorbed water even after compaction. The hydrated bentonite does not allow water to penetrate it or pass through it, thus creating an impermeable barrier. Used as a landfill liner, the bentonite protects subsoil and groundwater from seepage of harmful substances.

    In its simplest application, existing soil is mixed with a certain percentage of bentonite (depending on soil properties), before being hydrated to maximum absorption and compacted. More advanced solutions include multiple barriers, or geosynthetic clay liners (GCL), where a woven textile matt is simply filled with bentonite and hydrated, providing the added advantage of ease of installation. Imerys Civil Engineering has the appropriate palette of bentonite based products and expertise to cover all requirements. Especially for GCLs, Imerys provides the appropriate qualities depending on the processing and requirements of the customer.