Asbestos abatement coating system
OwnerIrving H. Weisberginventor
Life of this patent
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Abstract
A process for bonding particulate siliceous contaminants, such as asbestos fibers and the like, with a soil surface layer comprises infusing the contaminated soil layer with an aqueous solution of a soluble silicate prepolymer and with an inorganic polyvalent cation catalyst. Following the cure and polymerization of the silicate prepolymer, an abrasion-resistant and impact-absorbent topcoating layer of resinous copolymeric materials is applied to the surface of the silicate-bonded soil layer.
Claims10
A process for bonding finely divided, particulate in-place contaminants, such as asbestos fibers to a soil surface layer upon which the contaminants have precipitated or with which the contaminants have become admixed, comprising the steps of:
- infusing the contaminated soil surface layer with an aqueous solution of a soluble silicate prepolymer and with an inorganic polyvalent cation catalyst for said silicate prepolymer;
- allowing said silicate prepolymer to cure and polymerize and to insolubilize in-situ in said contaminated soil layer to form a matrix in which silicate anions in said silicate prepolymer are chemically bonded with silicate moieties in both the contaminated soil layer and the asbestos fibers, said matrix encapsulating reactive entities in said soil layer which otherwise would interfere with a subsequently applied topcoat layer;
- and applying an abrasion-resistant and impact-absorbent topcoat layer of resinous material to the surface of the infused and bonded soil layer.
Dependencies are inferred from the claim text.