JPH075343B2 - Manufacturing method of colored slip-stop aggregate for paved road - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a colored aggregate for preventing slipping of a vehicle by fixing it to a surface of a paved road with an adhesive to form a rough surface.

Problems to be Solved by Conventional Techniques and Inventions Slip-stop aggregates for paved roads are given various colors to clarify the construction site, but even when worn due to friction with tires It is necessary to color not only the surface but also the inside of the aggregate so that the color does not change. Therefore, conventionally, a clay was mixed with an inorganic pigment and finely pulverized, water was added to the pulverized mixture to form a desired lump, which was fired, cooled, pulverized, and then sized. However, such a method has a drawback that more than half of the particles become unusable fine powders having a particle size of 1 mm or less during pulverization, and expensive inorganic pigments are wasted. Incidentally, as a method for producing ceramic granules, in addition to the above, there is a method in which water is added to a finely pulverized mixture of an inorganic pigment in a clay for clay and granulated into desired particles by a granulator and then fired. There is no waste of raw materials in this method, but the outer surface shape is rounded, which is unsuitable as a slip stopping aggregate. Means for Solving Problems As a means for solving such problems, the present invention has a structure in which a bismuth substrate is crushed, and after sizing, an aqueous metal complex salt solution is impregnated and fired.

Action and Effect of the Invention The present invention has the above-described structure, and is crushed and sized, and then impregnated with the aqueous solution of the metal complex salt. In addition, the unglazed green body that is the raw material of the base material can be manufactured at low cost by utilizing the defective product that is generated when unglazed ceramics, which were conventionally disposed as industrial waste, and can be manufactured at low cost. Since it is impregnated with an aqueous solution of complex salt, it not only adheres to the surface like a glaze, but also penetrates into the interior due to the capillary phenomenon and causes a solid-phase reaction with the substrate by firing to develop color, but the color does not change even when worn At the same time, since the unglazed body is crushed, the surface is angular and the effect of stopping slipping is great. The metal salt complex aqueous solution does not generate corrosive gas during firing and has an effect of not damaging the furnace.

Example BE was used as an aqueous solution of a metal complex salt used as a pigment in the present invention.
The one sold by NCKISER-KNAPSACK under the product name Melapon is suitable.

Here, explaining one embodiment of the present invention, crushed unglazed porcelain porcelain, sized in a range of particle size 1 ~ 7mm in several stages depending on the application, after sufficiently dried, After immersing it in an aqueous solution of Melapon 2009 containing iron as a coloring element and impregnating it, it was dried and calcined at 1100 ° C to 1300 ° C, and an aggregate colored reddish brown to a depth of about 2 mm from the surface was obtained. .

Claims (1)

[Claims] 1. A method for producing a colored aggregate for slip-proofing on a pavement, which comprises crushing a bismuth base, sizing, impregnating an aqueous metal complex salt solution, and firing.