| 摘要 |
<p>A composition for coloring a surface of concrete according to the present invention comprises: 8 wt% of a dye for coloring having the size of 0. 01-1 nm; 45 wt% of a diluent prepared by mixing ion exchange water and ethylene glycol in the weight ratio of 7:3; 7 wt% of methacrylic acid methyl ester; 0.06 wt% of polydimethylsiloxane; 0.5 wt% of fluoropolymer; 6 wt% of colloidal silica; and 25 wt% of modified silicate. According to the present invention, PH of a colored surface is 11 to 13, whereby a concrete surface has the same alkaline as a concrete of alkali component having a Ca[OH]_3 hydroxyl group and the concrete surface is colored by a permeation of the concrete to a depth of 2-3 mm, thereby having a solid surface and aesthetic appearance. Also, the concrete surface is given with a semi-permanent durability and stable implementation of a color, and agglomeration of a material or stains or a color development caused by separating a color or coloring are not occurred.</p> |
