Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 21, 2008
Patent Application Number
11286969
Date Filed
November 23, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention relates to a barrier cap material including a blend of: a plurality of aggregate particles, and a plurality of manufactured composite particles including a hydratable sealant material. In a particular embodiment, the segregation of a blend of aggregate particles and composite particles, when dropped through a water column can be controlled by varying blends of aggregate and composite particles. In another embodiment, the permeability of the barrier cap material, when hydrated on a surface, can be controlled from 1×10−3 cm/sec to 1×10−8 cm/sec by varying blends of aggregate and composite particles.
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