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US 2009/0022550 A1Published application
System and Method for Lining an Earthen Formation
OwnerRonald H. Roesler, John C. Crownoverinventors
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Abstract
A method of lining an earthen formation pit includes covering at least a portion of the pit with a polymer. A portion of the polymer-covered area may be additionally covered with bentonite. The bentonite and polymer combine, when hydrated, to form a layer that is substantially water impermeable. A portion of the formation may be covered by a protective slurry of water and cement. A portion of the formation may be covered by a water-resistant layer such as, for example, a plastic tarpaulin.
Claims22
A method of lining an earthen formation, comprising:
- applying a polymer to at least a portion of the earthen formation;
- and applying bentonite to at least a portion of the earthen formation covered with the polymer, the bentonite adapted to combine with the polymer, when hydrated, to form a layer that is substantially impermeable to water.
A system for lining an earthen formation, comprising:
- a polymer;
- an application device operable to apply the polymer to a portion of a surface of the earthen formation;
- bentonite clay;
- and
- an application device operable to apply the bentonite clay to a portion of a surface of the earthen formation to form, when hydrated and combined with the polymer, a layer substantially impermeable to water.
2 more elements
Dependencies are inferred from the claim text.