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  2. Bentonite - Wikipedia

    en.wikipedia.org/wiki/Bentonite

    Bentonite layers from an ancient deposit of weathered volcanic ash tuff in Wyoming Gray shale and bentonites (Benton Shale; Colorado Springs, Colorado). Bentonite (/ ˈ b ɛ n t ə n aɪ t / BEN-tə-nyte) [1] [2] is an absorbent swelling clay consisting mostly of montmorillonite (a type of smectite) which can either be Na-montmorillonite or Ca-montmorillonite.

  3. Slurry wall - Wikipedia

    en.wikipedia.org/wiki/Slurry_wall

    Exposed slurry wall of the World Trade Center at Ground Zero. A slurry wall is a civil engineering technique used to build reinforced concrete walls in areas of soft earth close to open water, or with a high groundwater table. [1]

  4. Evaporation pond - Wikipedia

    en.wikipedia.org/wiki/Evaporation_pond

    Evaporation ponds are artificial ponds with very large surface areas that are designed to efficiently evaporate water by sunlight and expose water to the ambient temperatures. [1] Evaporation ponds are inexpensive to design making them ideal for multiple purposes such as wastewater treatment processes, storage, and extraction of minerals .

  5. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    Bituminous waterproofing systems are designed to protect residential and commercial buildings. Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous , and waterproof. [ 1 ]

  6. List of countries by bentonite production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, have been used for clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist: sodium bentonite and calcium bentonite.

  7. Deicke and Millbrig bentonite layers - Wikipedia

    en.wikipedia.org/wiki/Deicke_and_Millbrig...

    Several different types of bentonite can be found; however, potassium bentonite is the main one associated with the Deicke and Millbrig eruptions. The Deicke and Millbrig K-bentonite layers can be found from Alabama to New York to Minnesota. These K-bentonite layers are up to a meter thick in some locations. [8] Such thickness is unique.