Non-film forming compositions and methods of protecting cured concrete and cementitious materials
AssigneeProtocol Environmental Solutions Inc.
InventorsSergio Vitomir, Floyd Wandler
Life of this patent
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Abstract
Contemplated compositions and methods for protection of concrete and various other cementitious materials comprise a step of formation of a mesoporous polymeric network within the concrete or other cementitious material, wherein the network further includes a cationic component that forms a substantially insoluble precipitate upon reaction with sulfuric acid to so form a composite barrier against further attack by sulfuric acid.
Claims16
A method of protecting a volume of concrete or cementitious material from sulfuric acid attack, comprising:
- forming within the volume a mesoporous polymer network from a plurality of precursor compounds, wherein the mesoporous polymer network is formed using an acid catalyst;
- and
- including in the mesoporous polymer one or more alkaline earth metal cationic components in an amount sufficient to form a substantially insoluble precipitate within the mesoporous polymer upon reaction with sulfuric acid.
A method of protecting a volume of concrete or cementitious material from sulfuric acid attack, comprising:
- forming within the volume a mesoporous polymer network from a plurality of precursor compounds;
- including in the mesoporous polymer one or more alkaline earth metal cationic components in an amount sufficient to form a substantially insoluble precipitate within the mesoporous polymer upon reaction with sulfuric acid;
- and
- wherein the mesoporous polymer network is formed from an aqueous solution comprising (a) one or more of an organosilane, an alkoxysilane, and an organosilicate, (b) one or more of a strontium salt of a carboxylic acid and a barium salt of a carboxylic acid, (c) one or more of hydrochloric acid, phosphoric acid, sulfuric acid, and nitric acid, and optionally (d) an alcoholic co-solvent.
Dependencies are inferred from the claim text.