JP2010001711A - Method of coating cavity-containing paving surface with surface coating material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of coating with a surface coating material by which, when pavement with a gap, a recessed portion on a pavement surface is coated with the surface coating material (top coat), only the top of aggregate is selectively coated without crushing the gap to allow the pavement with the gap, the recessed portion on the pavement surface to sufficiently exert its function. <P>SOLUTION: The surface coating material 2 made of an acrylic resin, acrylic urethane resin, etc., is sprayed on the surface of the hard and/or soft aggregate 1 making up a pavement material to form a coating thickness of about 50 μm. In this coating process, a water-soluble material Wa, such as corn starch or water-soluble pulp, is sprayed on surface recessions Q between aggregates, and the water-soluble material Wa sprayed onto the aggregate top is removed therefrom, then the surface coating material 2 is sprayed onto the aggregate 1 to the aggregate 1 to form the coating thickness of about 50 μm for fixture. After the surface coating material 2 dries up, the water-soluble material Wa is removed by high pressure air blasting, etc., and the remaining water-soluble material Wa is dissolved and removed by running water. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for applying a surface covering material to a pavement surface having a void. More specifically, the present invention has a void that makes it possible to cover only the top surface of a pavement with a surface covering material without crushing the void. It is related with the construction method of the surface coating material with respect to the finished pavement surface.

  Conventionally, a pavement having a void formed by laying and solidifying a hard aggregate such as an inorganic granular material, a soft aggregate such as a rubber chip, and a binder (binding material) on a ground, For example, in drainage pavement (also called porous pavement), as shown in FIG. 3, the surface of the aggregate 1 constituting the pavement material has a weather resistance called a top coat and urethane type. The surface coating material 2 made of the above resin material is coated with a thickness of about 50 μm (see, for example, Patent Document 1 and Patent Document 2).

  The main purpose of coating this surface covering material 2 (top coat) is to improve water repellency and hydrophilicity in recent years, in addition to coloring of pavement, improvement of weather resistance, improvement of wear resistance, improvement of slip resistance, etc. It covers a wide variety of purposes.

  By the way, as a method for coating the surface covering material 2, a spraying method using a spray gun and a coating method using a roller brush are known, but the aggregate 1 constituting the paving material having the above-described voids is used. When the surface coating material 2 is coated on the surface, a spraying method with good coating uniformity on the surface recess Q of the pavement material is often used.

  However, when the surface coating material 2 is coated on a pavement material having a surface recess Q or a void of the pavement material, if the surface coating material 2 is covered in a large amount, the voids are crushed and clogged. There is also a risk of hindering the function of the pavement, for example, water permeability (drainage) and sound absorption effect.

That is, if the surface covering material 2 is covered only on the top of the aggregate 1 of the paving material, even if the function of the surface covering material (top coat) can be exhibited, the clogging of the surface recess Q is taken into consideration and the covering amount is limited. There was a case where it was unavoidable.
Japanese Patent Laid-Open No. 2006-219856 Japanese Patent Laid-Open No. 2004-3158

  This invention pays attention to such a conventional problem and selects only the top of the aggregate without crushing the gap when covering the surface covering material (top coat) on the pavement having the gap having the recess on the pavement surface. An object of the present invention is to provide a method for constructing a surface covering material on a pavement surface having a void that can be coated on the surface of the pavement and can sufficiently exhibit the function of the pavement having a void having a recess on the pavement surface. Is.

  In order to achieve the above object, according to the first aspect of the method for applying a surface covering material to a pavement surface having a void according to the present invention, the surface top of the pavement material is first applied when the surface covering material is coated. The gist is to spread a water-soluble substance on the surface recess so as not to coat, then coat the surface coating material, and after the surface coating material has dried, remove the water-soluble substance.

  In the second invention of this application, when coating the surface covering material, first, after covering the surface recess with a water-soluble substance so as not to cover the surface top of the paving material, the surface top is not further covered. The gist of the present invention is to disperse the powdery substance, then coat the surface coating material, and after the surface coating material is dried, remove the powdery substance and water-soluble substance.

  Here, in the first and second inventions described above, when the surface coating material is coated, the surface of the pavement including the surface recess of the pavement material is previously coated with a small amount of the surface coating material, and then the water-soluble substance is added. It is also possible to spread the water-soluble substance, and before the water-soluble substance is spread, it is possible to wet the surface concave portion of the pavement with a small amount of water in advance and then spread the water-soluble substance. The water-soluble substance is removed by physical means, and the residue of the water-soluble substance that cannot be removed is dissolved and removed with running water.

  In addition, after the surface covering material is coated, it is possible to cover the surface concave portion of the pavement material with a small amount of the surface covering material. In addition, when the surface of the pavement material is wetted with a small amount of water in advance and the water-soluble substance is distributed, the dissolved substance of the water-soluble substance is temporarily fixed to prevent the water-soluble substance from slipping through the gap. You can also By repeating these steps, it is possible to selectively coat only the top portion with a thick surface covering material.

  Furthermore, the water-soluble substance is corn starch or water-soluble pulp, and the pavement material has a pavement material having continuous voids of 5% to 40%.

  By such a method, the surface coating material (top coat) is applied to the pavement having a void having a recess on the pavement surface by coating the surface coating material (top coat) on the pavement having a void. Can be applied without crushing the gap.

Since the present invention is configured as described above, the following excellent effects can be obtained. (a) When covering a pavement having a void having a recess on the pavement surface with a surface coating material (top coat), the surface can be covered without crushing the void.
(b) The function of a pavement having a void having a recess on the pavement surface can be sufficiently exhibited. (c) With respect to surface wear of the pavement surface, it is possible to apply only the top of the pavement aggregate having a gap to increase the durability.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.

  In this invention, a pavement material in which hard aggregates and / or soft aggregates and a binder such as polyurethane are mixed is laid and consolidated on the base, and then the surface covering material is coated on the surface of the pavement material. It is the construction method of the surface coating material with respect to the pavement surface which has the space | gap which performs, Comprising: Fig.1 (a)-(c) has shown explanatory drawing of the construction process of the surface coating material which shows embodiment of this invention.

  In the first embodiment of the first invention, the surface of the hard and / or soft aggregate 1 constituting the pavement is made of a resin material such as acrylic or acrylic urethane having weather resistance by a spray gun or the like. When the material 2 is coated by spraying with a thickness of about 50 μm, first, as shown in FIG. 1A, a water-soluble substance Wa such as corn starch or water-soluble pulp is spread on the surface concave portion Q of the pavement, After removing the water-soluble substance Wa applied to the top of the material, the surface coating material 2 described above is coated by spraying with a thickness of about 50 μm and fixed.

  Then, after the surface covering material 2 is dried, as shown in FIG. 1B, the water-soluble substance Wa is physically removed by blowing high-pressure air or the like, and further as shown in FIG. 1C. The residue of the water-soluble substance Wa is dissolved and removed with running water.

  Moreover, 2nd Embodiment of this invention shown to Fig.2 (a)-(g) is an acrylic type which has a weather resistance by the spray gun etc. on the surface of the hard and / or soft aggregate 1 which comprises a pavement material, When coating the surface coating material 2 made of a resin material such as acrylic urethane with a thickness of about 50 μm, first, the surface of the pavement material was wetted with a small amount of water W as shown in FIG. Thereafter, as shown in FIG. 2 (b), water is wiped from the top of the surface of the aggregate 1, and then, as shown in FIG. 2 (c), the surface recess Q of the pavement is water-soluble such as corn starch or water-soluble pulp. The substance Wa is distributed, and as shown in FIG. 2 (d), the water-soluble substance Wa at the top of the surface of the aggregate 1 is removed with a rake, a spatula or the like, and then, as shown in FIG. Surface covering material 2 made of a resin material such as acrylic or acrylic urethane Is sprayed to a thickness of about 50 μm to cover and fix. After the surface covering material 2 is dried, as shown in FIG. 2 (f), the water-soluble substance Wa is physically removed by blowing high-pressure air F or the like, and further, as shown in FIG. 2 (g), The water-soluble substance Wa is dissolved and removed by running water.

  In addition, as an embodiment of the second invention, a granular material that is cheaper than the water-soluble substance Wa is added and used. As in the first embodiment, when the surface covering material 2 is coated, the paving is first performed. After the water-soluble substance Wa is distributed in the surface concave portion Q of the material, the granular or powdery granular material (not shown) is distributed, and then the surface coating material 2 is coated, and after the surface coating material 2 is dried, The powdery substance and the water-soluble substance Wa are physically removed by blowing high-pressure air F or the like, and the surface covering material 2 is coated again on the part from which the powdery substance and the water-soluble substance Wa are removed. It is to perform construction.

  Examples of the particulate material include inorganic particles such as silica sand, calcium carbonate, fly ash, alumina, and talc, and organic particles such as rubber powder, polyethylene powder, and polypropylene powder. It is possible to adjust the ease of floating removal of water-soluble substances against the fluctuation of air pressure when filling a part of surface recesses instead of water-soluble substances and further removing water-soluble substances with high pressure air I can do it. Specifically, inorganic powders with a specific gravity greater than that of the water-soluble substance are used so that the water-soluble substance is not easily scattered when air is blown, or the specific gravity is higher than that of the water-soluble substance so that the water-soluble substance can be easily removed. Small organic powders can be used.

  When coating the surface covering material 2, a small amount of the surface covering material 2 may be previously coated on the surface of the pavement including the surface concave portion Q of the pavement material with an air brush or the like, and then the water-soluble substance Wa may be distributed. Is possible.

  Conversely, after the surface coating material 2 is coated and fixed only on the top of the aggregate, a small amount of the surface coating material 2 can be coated on the surface recess of the pavement with an air brush or the like. In addition, as a means for physically removing the water-soluble substance Wa, the water-soluble substance Wa, the granular material, and the surface coating material 2 after being coated, if it can be turned upside down, it can be removed upside down. .

  As the pavement having the voids, the pavement has a continuous void having a porosity of 5% or more and 40% or less in which hard aggregates and / or aggregates containing elastic aggregates are bonded to the hard aggregates with a binder. It is.

  By applying the surface coating material 2 to the pavement having a void by the above construction method, the surface coating material (top coat) is coated to the pavement having a void having a recess on the pavement surface. At this time, the coating can be performed without crushing the gap. As a result, the function of the pavement having a void having a recess on the pavement surface can be fully exhibited, and the top of the aggregate of the pavement having a void is thickly coated against the surface wear of the pavement surface. It is also possible to improve durability.

(A)-(c) is explanatory drawing of the construction process of the surface covering material which shows embodiment of this invention. (A)-(g) is explanatory drawing of the construction process of the surface coating | covering material which shows another embodiment of this invention. It is explanatory drawing of the construction method of the surface coating material with respect to the conventional aggregate.

Explanation of symbols

1 Aggregate 2 Surface coating material (top coat)
W Water Q Surface recess Wa Water-soluble substance F High pressure air

Claims (8)

A pavement surface having a gap covering the surface covering material on the surface of the pavement after laying and solidifying a hard aggregate and / or a pavement mixed with a soft aggregate and a binder on the ground. In the construction method of the surface coating material for
When coating the surface covering material, first, a water-soluble substance is spread on the surface recess so as not to cover the top of the surface of the paving material, and then the surface covering material is coated, and after the surface covering material is dried, A method of applying a surface covering material to a pavement surface having a void for removing water-soluble substances. For a pavement surface having a void covering the surface covering material on the surface of the pavement after laying and solidifying the pavement mixed with hard aggregate and / or soft aggregate and binder on the ground In the surface coating material construction method,
When coating the surface covering material, after first spraying a water-soluble substance in the surface recess so as not to cover the surface top of the pavement material, further spray the granular material so as not to cover the surface top, A method for applying a surface covering material to a pavement surface having a gap for removing the powdery substance and water-soluble substance after the surface covering material is coated and dried.   When covering the surface covering material, the surface of the pavement including the surface recess of the pavement material is previously covered with a small amount of the surface covering material, and then the water-soluble substance is distributed, and then the voids according to claim 1 or 2 are provided. Construction method of surface coating material on the pavement surface.   The method for constructing a surface covering material in a pavement having a gap according to claim 1 or 2, wherein after the surface covering material is coated, the surface recess of the pavement material is covered with a small amount of the surface covering material.   The method for applying a surface covering material in a pavement having a void according to claim 1 or 2, wherein the water-soluble substance is distributed after the surface recesses of the pavement material are wetted in advance with a small amount of water before the water-soluble substance is distributed. .   The said water-soluble substance is removed by physical means, and the residue of the water-soluble substance that cannot be removed is dissolved and removed by running water. Surface coating material construction method.   The method for applying a surface covering material to a pavement surface having a void according to claim 1, wherein the water-soluble substance is corn starch or water-soluble pulp.   The method for applying a surface covering material to a pavement surface having a void according to claim 1, wherein the pavement has a continuous void of 5% to 40%. .

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