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US 11,667,583 B2Granted
Method of dispersing anatase titanium dioxide for penetration in concrete structures to reduce pollutants
AssigneePavement Technology, Inc.
InventorsColin Durante, Craig Higgins
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Abstract
Methods for embedding photocatalytic titanium dioxide in concrete surfaces to reduce pollutants via photocatalytic reactions are provided herein. One method includes mixing a solvent compound with an anatase titanium dioxide (TiO2) photocatalyst, applying an amount of concrete treatment compound to an upper surface of the concrete, the concrete treatment compound comprising a mixture of a liquid carrier compound with the anatase titanium dioxide (TiO2) photocatalyst.
Claims20
A composition, comprising:
- a liquid compound;
- and
- a photocatalytic compound mixed in the liquid compound, wherein the liquid compound is operative as a carrier for the photocatalytic compound and is of a type that impregnates concrete to a depth greater than an eighth of an inch relative to an upper surface of the concrete and seals the concrete so as to increase resistance to water damage and;
- the composition is operative to embed the photocatalytic compound to a depth greater than ⅛ inch below an upper surface of the concrete.
1 more element
A composition for treating concrete, comprising:
- a concrete sealer that is liquid;
- and
- a photocatalytic compound that is mixed with the concrete sealer so that the concrete sealer becomes a carrier for the photocatalytic compound;
- wherein the concrete sealer is of a type that penetrates into concrete;
- and
- the composition is operative to embed the photocatalytic compound to a depth greater than ⅛ inch below an upper surface of the concrete.
3 more elements
A composition, comprising:
- water;
- an additive that makes the water concrete-penetrating;
- and
- at least 3% photocatalyst by weight, wherein the photocatalyst is dispersed in the water;
- wherein the composition when applied to a surface of concrete impregnates an upper layer of the concrete with the photocatalyst;
- the upper layer of the concrete is greater than ⅛ inch thick;
- and
- the composition is operative to embed the photocatalytic compound so that any portion of the upper layer that is exposed by wear is operative for photocatalytic oxidation of nitrogen oxides and volatile organic compounds.
5 more elements
Dependencies are inferred from the claim text.