Accelerating the coloring of concrete and other substrates
OwnerThomas W. Urbanek, Gregory J. Huberinventors
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Abstract
A method of treating a substrate that is exposed to the atmosphere, in which the substrate contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of contacting the substrate with an oxidizer to increase the development speed of the color. The substrate may be natural, or manmade, such as a hydraulic material, for example concrete. The oxidizer is preferably free of chromates. The oxidizer is preferably applied to the substrate in an aqueous solution.
Claims42
A method of treating a substrate, in which the substrate contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of:
- contacting the substrate with an oxidizer to increase the development speed of the color.
A method of treating a substrate, in which the substrate contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of:
- contacting the substrate with an oxidizer free of chromates to increase the development speed of the color.
A method of coloring a substrate, the method comprising the steps of:
- applying an oxidizable metal compound to the substrate;
- and, subsequently,
- contacting the substrate with a solution containing an oxidizer to oxidize the oxidizable metal compound.
A method of coloring concrete, the method comprising the steps of:
- staining concrete with a metal compound having a color;
- and
- enhancing development speed of the color of the metal compound by contacting the concrete with an oxidizer in liquid solution.
A method of coloring construction material, the method comprising the steps of:
- staining the construction material with a metal compound having a color;
- and
- enhancing development speed of the color of the metal compound by contacting the construction material with an oxidizer in aqueous solution.
A method of coloring a substrate, the method comprising the steps of:
- applying an oxidizable metal compound to the substrate;
- and
- subsequently, contacting the substrate with an aqueous solution containing an oxidizer to oxidize the oxidizable metal compound,
- wherein the oxidizer is selected from the group consisting of peroxides and percarbonates and the oxidizer is present in an amount exceeding 0.1% by weight of the aqueous solution.
A method of treating a manmade substrate, in which the manmade substrate contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of:
- contacting the manmade substrate with an oxidizer to increase the development speed of the color.
A method of treating a hydraulic substrate that is exposed to the atmosphere, in which the hydraulic substrate contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of:
- contacting the hydraulic substrate with an oxidizer to increase the development speed of the color.
A method of treating concrete, in which the concrete contains an oxidizable metal compound having a color and a development speed under atmospheric conditions, the method comprising the step of:
- contacting the concrete with an oxidizer free of chromates to increase the development speed of the color.
Dependencies are inferred from the claim text.