Material and method for forming an underwater barrier layer
AssigneeNew Waste Concepts, Inc.
InventorsThomas J. Nachtman, John H. Hull
Life of this patent
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Abstract
A bead for forming a barrier layer over an underwater surface. Generally, a plurality of such beads are required to form an effective underwater barrier layer. Each of the beads comprises a core, preferably formed of a piece of gravel. A sealant layer is provided which at least partially encapsulates this core. The sealant layer includes a clay and a binder. The binder facilitates the adhesion of the sealant layer to the core of the bead. To form such an underwater barrier layer over contaminated sediments beneath a body of water, a plurality of the beads are deposited on top of the contaminated sediments.
Claims17
A material for forming a barrier layer over an underwater surface, comprising:
- a plurality of cores;
- and
- a sealant layer formed on a surface of each of said cores which includes a binder and a water absorbent clay in an amount sufficient to cause said sealant layer to swell upon contact with water, each of said cores and sealant layer forming a bead having a specific gravity which is greater than one.
Dependencies are inferred from the claim text.