Material and method for forming an underwater barrier layer
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United States of America Patent
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Jul 23, 1996
Issued Date -
N/A
app pub date -
Jun 30, 1994
filing date -
May 16, 1994
priority date (Note) -
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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.
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