Method for reducing the leachability of granular material and granular material obtained using this method
AssigneeAardelite Holding B.V.
InventorGertjan A. O. Teekman
Life of this patent
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Abstract
A method for reducing the leachability of granular material which consists essentially of an inorganic binder and a filler containing contaminants, in which individual particles of the granular material are coated with a closed coating of a water-insoluble and water-repellent polymer composition. The coating is preferably a bituminous material.
Claims5
Method for reducing the leachability of particles of granular material consisting essentially of an inorganic binder and a filler containing contaminants, comprising coating the individual particles of the granular material with a closed coating of a water-insoluble and water-repellent polymer composition such that the contaminants in the filler cannot be reached by water.
A coated granular material having reduced leachability, comprising granular material consisting essentially of an inorganic binder and a filler containing contaminants, individual particles of the granular material having thereon a closed coating of a water-insoluble and water-repellent polymer composition such that the contaminants in the filler cannot be reached by water.
Dependencies are inferred from the claim text.