Sodium bentonite clay has been successfully used as a sealant for earth dams where the soil is of a permeable nature and where less than optimum compaction can be achieved. It is extremely important that the bentonite clay is incorporated and compacted correctly as less than satisfactory results may be obtained if attention is not…
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The key to designing Bentonite liners and vertical cut-off barriers lies in understanding clay chemistry. Bentonite is a clay mineral made of hydrous aluminosilicate sheets or plates. Unsatisfied charges within its crystal structure resulting from the substitution of aluminium by magnesium atoms cause a net negative surface charge. To counteract this charge imbalance, bentonite has…
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Bentonite can be defined as a transported stratified clay which has been formed by weathering of volcanic ash approximately 66 million years ago. It consists of a hydrated aluminium silicate or montmorillonite and is a member of the smectite group of minerals. Bentonite can contain either sodium or calcium as exchangeable cations absorbed on the…
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Bentonite is a uniquely and extremely versatile material. It can be used in a Foundry for Ore Pelletising in Oil Drilling Muds as Cat Litter, in Animal Feeds in Wine, Juice and Oil Clarification in Refractories Ceramics for Piling and Other Civil Applications for Dam Sealing in Water Treatment in General Binding Applications and Brick Making.
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