Colored cement
AssigneeC-Cure Corporation
InventorsCharles J. Johansen, Jr., Ernest D. Hollas
Life of this patent
Estimating the term…
Abstract
A composition and method for preparing colored cement for use as mortars, grouts, stuccos or pool plasters that employs a pigmented inert filler.
Claims31
A cement composition comprising:
- i) cement;
- ii) water;
- iii) inert filler comprising 5-100 weight percent of a pigmented inert filler wherein the pigmented inert filler maintains at least 60% of its color after being immersed in concentrated hydrochloric acid for forty-eight hours and at least 60% of its color after being immersed in a 6 percent sodium hypochlorite solution for forty-eight hours;
- and
- iv) optionally conventional additives selected from the group consisting of latexes, setting aids, dispersant, surfactants, liquefiers, reinforcing fibers, preservatives, antifoaming agents, thixotropy and viscosity control agents, plasticizer, freeze thaw stabilizers, flame retardancy or mixtures of the foregoing.
A cement composition consisting essentially of:
- i) cement;
- ii) water;
- iii) inert filler comprising about 100 weight percent of a pigmented inert filler that maintains at least 60% of its color after being immersed in concentrated hydrochloric acid for forty-eight hours and at least 60% of its color after being immersed in a 6 percent sodium hypochlorite solution for forty-eight hours and
- iv) optionally conventional additives selected from the group consisting of latexes, setting aids, dispersant, surfactants, liquefiers, reinforcing fibers, preservatives, antifoaming agents, thixotropy and viscosity control agents, plasticizer, freeze thaw stabilizers, flame retardancy or mixtures of the foregoing.
A method for preparing a colored cement composition comprising the step of (a) preparing a pigmented inert filler wherein the pigmented inert filler maintains at least 60% of its color after being immersed in concentrated hydrochloric acid for forty-eight hours and at least 60% of its color after being immersed in a 6 percent sodium hypochlorite solution for forty-eight hours and (b) mixing water cement, inert filler wherein the inert filler comprises 5-100 weight percent based on the total weight of the inert filler of the pigmented inert filler prepared in step (a) and optionally conventional additives selected from the group consisting of latexes, setting aids, dispersant, surfactants, liquefiers, reinforcing fibers, preservatives, antifoaming agents, thixotropy and viscosity control agents, plasticizer, freeze thaw stabilizers, flame retardancy or mixtures of the foregoing.
A method for preparing a colored cement composition comprising:
- (i) selecting a color from a color grid having axes with preselected component colors;
- (ii) determining the component colors from the axes of the grid corresponding to the selected color;
- (iii) mixing two or more predetermined portions of a pigmented inert filler that corresponds to the determined component colors selected from the axis of the grid color wherein the pigmented inert filler maintains at least 60% of its color after being immersed in concentrated hydrochloric acid for forty-eight hours and at least 60% of its color after being immersed in a 6 percent sodium hypochlorite solution for forty-eight hours;
- and
- (iv) during the mixing of the pigmented inert fillers or after the mixing of the pigmented inert fillers, mixing water and cement with the pigmented inert fillers in a mixing container to obtain a cement composition with the selected color.
Dependencies are inferred from the claim text.