Process for coloring concrete using compacted inorganic...

C - Chemistry – Metallurgy – 04 – B

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C04B 14/02 (2006.01) C04B 14/30 (2006.01) C04B 14/36 (2006.01) C04B 18/02 (2006.01)

Patent

CA 2301268

A method for coloring cementitious systems using compacted inorganic granules, wherein said compacted inorganic granules comprise an inorganic pigment and a dispersing agent. Particularly, a method for coloring cementitious systems using compacted inorganic granules; wherein said compacted inorganic granules are produced by a process consisting of: (a) mixing an inorganic pigment and a dispersing agent, (b) compacting the mixture, (c) milling the compacted mixture, and (d) classifying the compacted mixture into at least one oversize material stream, at least one undersize material stream and at least one product stream of compacted inorganic granules; and wherein the coloring effect of the compacted inorganic granules in the cementitious system equals or exceeds the powder standard.

La présente invention concerne un procédé permettant de colorer les systèmes cimentaires à l'aide de granulés inorganiques compactés comprenant un pigment inorganique et un agent de dispersion. En particulier, l'invention se rapporte à un procédé permettant de colorer les systèmes cimentaires à l'aide de granulés inorganiques compactés produits selon un procédé qui consiste à: (a) mélanger un pigment inorganique et un agent de dispersion; (b) compacter le mélange; (c) broyer le mélange compacté; et (d) classer le mélange compacté en au moins un circuit de matériau déclassé trop grand, au moins un circuit de matériau déclassé trop petit et au moins un circuit de produit de granulés inorganiques compactés. L'effet colorant des granulés inorganiques compactés de la présente invention dans le système cimentaire est égal ou supérieur à celui des poudres habituellement utilisées.

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