JP2003138505A - Decorative concrete road surface and method of constructing decorative concrete road surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative concrete road surface capable of being easily formed at a low cost without deteriorating a strength even in a place where cars run in a concrete road surface, and a method of constructing the decorative concrete road surface. SOLUTION: This concrete road surface is formed in a double layer structure having a bed concrete 10 and a decorative concrete 20 to reduce the amount of consumption of stone 30. Also, a concrete strength is assured by the bed concrete 10, and the decorative concrete 20 is formed integrally with the reinforced bed concrete 10 to assure the strength of the decorate concrete road surface 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete road surface for use in a garden, a park, a parking lot, a road, etc., in which stones are exposed on the surface.

[0002]

2. Description of the Related Art Conventionally, when exposing a stone material to the surface of a concrete pavement to form a decorative road surface, after the concrete mixed with the stone material is placed, the concrete on the surface is removed before the concrete is completely dried. It was done by rinsing with water and exposing the stone to the surface.

However, this method has a serious problem that the surface strength of the concrete is lowered because water is poured in before the concrete is completely dried. Therefore, the conventional construction method cannot be used on a road or a parking lot where vehicles pass.
Further, in such a method, it is relatively easy to expose the stone material to the entire road surface, but it is difficult to expose or not expose the stone material depending on the location of the concrete road surface. there were. Therefore, it is not possible to draw a pattern or an art picture on the stone material with the exposed portion and the non-exposed portion, so that the design effect cannot be expected so much.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a decorative concrete which can be easily and inexpensively formed on a concrete road surface, even in a place where an automobile or the like runs, without lowering the strength. To provide a method of constructing a road surface and a concrete road surface for makeup.

[0005]

The means adopted by the present invention to solve the above problems will be described with reference to the reference numerals in the embodiments. A makeup concrete 20 in which a stone material 30 is mixed is provided on an upper layer of the foundation concrete 10, and the foundation concrete 10 and the makeup concrete 20 are integrated with each other.
The concrete on the surface has been removed by sandblasting,
A concrete road surface 100 for makeup, characterized in that a road surface for makeup is formed by exposing the stone material 30 to the surface. Makeup concrete 20
In order to exert a design effect, in many cases, among artificially colored ones and natural stones, a relatively expensive stone material 30 such as granite or marble is mixed.
With the two-layer structure of the makeup concrete 20 and the makeup concrete 20, the layer for laying the makeup concrete 20 mixed with the stone material 30 can be formed thin, and the usage amount of the stone material 30 can be reduced. On the other hand, makeup concrete 2
If only 0 is laminated thinly, the concrete strength of the 20 layers of decorative concrete becomes insufficient, and it cannot be used in a place where heavy objects such as vehicles run. Therefore, the strength of the decorative concrete road surface 100 is ensured by ensuring the concrete strength with the base concrete 10 and by integrating the decorative concrete 20 with the base concrete 10 having this strength.

Further, the means adopted by the invention as defined in claim 2 is provided with a base concrete 10 and a makeup concrete 20 in which a stone material 30 is mixed and colored in an upper layer of the base concrete 10. The foundation concrete 10 and the decorative concrete 20 are integrated with each other, and the concrete on the surface of the decorative concrete 20 is removed by sandblasting to obtain a stone material 30.
A concrete road surface for makeup 10 characterized in that a makeup road surface is formed by exposing the surface of the concrete.
It is set to 0. This is obtained by coloring the concrete forming the decorative concrete 20 containing the stone material 30 in contrast to the invention of claim 1. By coloring the concrete itself in this way, it is possible to form various constructs between the stone material 30 and the decorative concrete 20, and to provide a decorative concrete road surface 100 exhibiting various design effects. it can.

Further, the means adopted by the invention of claim 3 is that the concave groove 40 having a predetermined pattern is formed on the surface of the makeup concrete 20, and the makeup concrete of claim 1 or 2 is formed. The concrete road surface 100 is used. This is a groove 40 on the surface of the decorative concrete 20.
By providing the groove, the groove 40 and the road surface where the stone material 30 is exposed form a pattern or art. For example, if a groove is provided in a block shape and the surface other than the groove is treated by sandblasting, the appearance can be obtained as if the blocks were spread over the surface.

Further, the means adopted by the invention as set forth in claim 4 can integrate the step of placing the concrete 10 for foundation and the concrete 20 for makeup, and even if the concrete 20 for makeup is poured from the upper layer, A step of solidifying the foundation concrete 10 to such an extent that it is not mixed with the concrete by stirring, and a makeup concrete 2 in which a stone material 30 is mixed on the upper surface of the foundation concrete 10.
0, a step of completely drying the makeup concrete 20, a step of removing the concrete around the stone material 30 mixed by sandblasting the surface of the makeup concrete 20 to expose the stone material 30 to the surface, The method for constructing a decorative concrete road surface 100 in which a stone material 30 is exposed.

This relates to a method for constructing the decorative concrete road surface 100 according to claims 1 to 3. First, after placing the base concrete 10 that forms the lower layer, the base concrete 10 is in a so-called semi-dry state,
That is, when the decorative concrete 20 is cast from the upper surface, it does not mix with the base concrete 10, but the surface does not completely dry and the base concrete 1
0 and the decorative concrete 20 are integrated, and a means for placing the decorative concrete 20 on the upper surface thereof is adopted. By using such means, it is possible to provide the decorative concrete road surface 100 having a high strength without completely forming the lower layer base concrete 10 and the upper layer decorative concrete 20 without forming another layer. Further, since the mixed concrete around the stone material is removed by sandblasting, it is possible to prevent the decrease in the road surface strength of the concrete without washing the surface with water before drying as in the conventional case.

Further, the means adopted by the invention described in claim 5 can be integrated with the step of placing the base concrete 10 and the decorative concrete 20, and even when the decorative concrete is poured from the upper layer A step of solidifying the foundation concrete 10 to such an extent that it is not mixed with the concrete by stirring, and a makeup concrete 2 in which a stone material 30 is mixed on the upper surface of the foundation concrete 10.
The step of placing 0, the step of forming a groove 40 having a predetermined pattern on the surface of the decorative concrete 20, the step of completely drying the decorative concrete 20, and the surface of the decorative concrete 20 are mixed by sandblasting. And a step of exposing concrete on the surface of the stone 30 by removing concrete around the stone 30, and a method for constructing the decorative concrete road surface 100 with the stone 30 exposed. This particularly relates to a method for forming the decorative concrete road surface 100 according to claim 3, wherein the surface of the decorative concrete 20 is soft,
A step of forming the concave groove 40 on the surface by embossing or the like is added.

Further, the means adopted by the invention described in claim 6 can be integrated with the step of placing the base concrete 10 and the decorative concrete 20, and even when the decorative concrete 20 is poured from the upper layer. The step of solidifying the foundation concrete 10 to the extent that it is not mixed with the foundation concrete 10 by stirring, the step of placing the makeup concrete 20 mixed with the stone material 30 on the upper surface of the foundation concrete 10, and the makeup concrete 20. A step of completely drying, a step of laying a sandblasting-preventing mold material 50 formed in a certain pattern shape on the surface of the decorative concrete 20 to prevent sandblasting, and a stone material in which the surface of the decorative concrete 20 is mixed by sandblasting. Remove the concrete around 30 and put stone 30 on the surface A step of leaving, cosmetic concrete road surface 1 a stone 30 is exposed, characterized in that it consists
00 construction method. This is to make it possible to form a predetermined pattern by laying the sandblasting-preventing mold material 50 on the road surface and then treating only the places not covered by the sandblasting-preventing mold material 50.

Further, the means adopted by the invention described in claim 7 can be integrated with the step of placing the base concrete 10 and the decorative concrete 20, and even when the decorative concrete 20 is poured from the upper layer. A step of solidifying the foundation concrete 10 to such an extent that it is not mixed with the foundation concrete 10 by stirring, a step of placing a makeup concrete 20 mixed with a stone material 30 on the upper surface of the foundation concrete 10, and a step of A step of forming a groove 40 having a predetermined pattern on the surface, a step of completely drying the makeup concrete 20, and a sandblasting prevention formed on the surface of the makeup concrete 20 in a certain pattern shape for preventing sandblasting. Template 5
0 is laid, and the step of exposing the surface of the decorative concrete 20 by sandblasting to remove the concrete around the stone 30 to expose the stone 30 on the surface is exposed. A method of constructing a decorative concrete road surface 100.
This is also aimed at obtaining the effects of both the inventions of claim 5 and claim 6.

Further, the means adopted by the invention of claim 8 can be integrated with the step of placing the foundation concrete 10 and the makeup concrete 20, and even when the makeup concrete 20 is poured from the upper layer, the foundation concrete is poured. A step of solidifying the base concrete 10 to such an extent that the base concrete 10 is not mixed with stirring.
The step of placing the decorative concrete 20 on the upper surface of 0,
The step of embedding the stone material 30 on the surface of the makeup concrete, the step of completely drying the makeup concrete 20, and the concrete around the stone material 30 mixed by sandblasting the surface of the makeup concrete 20 are removed to leave the stone material 30 on the surface. A step 1 of exposing concrete, which is characterized by the following steps:
00 construction method. This is because when the stone material 30 is mixed with the makeup concrete 20 when forming the makeup concrete road surface 100 in which high-grade stone such as granite or marble is exposed on the surface, the surface is buried in the concrete. The stone material 30 that is not exposed to the outside is generated, and waste increases. Therefore, after placing the concrete 20 for makeup in advance, before the concrete is solidified, the stone material 30 is embedded from the surface, and then the surface is sandblasted.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The decorative concrete road surface includes a base concrete layer that forms a lower layer and a decorative concrete layer that forms an upper layer. As the base concrete, a mixture of cement and fine aggregate (sand) or coarse aggregate (crushed stone or gravel) is used as is commonly used. In addition, when laying the foundation concrete, reinforced concrete having reinforcing bars incorporated therein may be used to provide strength. On the other hand, the decorative concrete forming the upper layer is used by mixing or embedding a decorative stone material inside. The concrete used for the decorative concrete may also be a mixture of cement with a fine aggregate and a coarse aggregate in an arbitrary mixture. In the case of decorative concrete, cement colored with a coloring agent may be used in order to exert a further design effect. By using such a colored cement, it is possible to form a surface layer having various contrasts according to the stone material.

The stone material to be mixed or buried in the decorative concrete is not particularly limited, and various stone materials such as natural stone, natural stone and artificially colored stone can be used. The size of the stone used here is not particularly limited.

In the case of forming such a two-layered concrete road surface, since the stone material is used for the purpose of designing the decorative concrete, relatively expensive stone material is often used. It is desirable that the amount to be placed is as small as possible. Therefore, it is preferable that the decorative concrete is thin as long as the stone material does not fall off and the upper layer has a sufficient thickness to maintain sufficient strength. Preferably, it is about 1 cm to 4 cm. In this way, the makeup concrete is formed relatively thin, so if the lower concrete layer and the upper concrete layer are separated, the upper makeup concrete will peel off when the vehicle runs. . Therefore, the cosmetic concrete of the upper layer is cast before the foundation concrete is completely hardened so that the concrete of the upper layer and the concrete of the lower layer are integrated. The makeup concrete may be cast immediately after the foundation concrete is poured, as long as the surface of the foundation concrete is not hardened, but more preferably, the foundation concrete is in a so-called semi-dry state. That is, it is preferable that the concrete is poured from the upper surface without being mixed with each other, but the surface is not dried and completely separated.

The thus-prepared decorative concrete road surface is sprayed with sand by sandblasting to scrape off the concrete around the stone material and expose the stone material to the surface to form the surface of the decorative concrete. It is preferable that the sand used in the sand blast used herein has a uniform particle size because the degree of surface abrasion is constant, and sand that does not contain soil is preferable because dust is less likely to be generated during construction. More preferably, the particle size is 1.5 mm
The following silica sand is good.

In this way, the sandblasted concrete surface can be made from cold-looking concrete with natural stones or artificial stones appearing on the surface to form a makeup road surface having a texture not felt like a concrete road surface. it can.

Further, various means can be used in combination on the surface in order to exert a further design effect. Sandblasting can be performed after forming a concave groove in a geometric pattern or art style on the concrete surface for makeup.
For example, if a groove is formed on the road surface as if the blocks were spread, and then sandblasting is performed, it is possible to make the blocks look like they are spread.

Further, it is possible to form a pattern by forming a place where sandblasting is not performed by using a sandblasting prevention mold material. The sandblast preventing mold material may be any one that does not break even if sand is blown by sandblasting, and various materials such as a plywood plate, a rubber plate, and thick paper can be used. In particular, a rubber plate is suitable because it can follow the uneven surface of the pavement surface and cover it. The pattern and layout of the mold material used here can be freely decided in a timely manner.However, if a geometric pattern or a concrete art image is modeled with the mold material, only the part corresponding to the background is sandblasted and modeled. It looks like only the raised part has risen, and beautiful patterns and art paintings are formed on the entire road surface. Further, if the template is laid in a check pattern and sandblasting is performed, a pseudo pattern like tiled pattern can be formed.

The sand blast is a method of spraying sand or the like on the road surface with a strong pressure to remove it, so to speak.
A large amount of dust is often generated. Therefore, it is possible to prevent dust from scattering by performing sandblasting after wetting the road surface.

[0022]

[Embodiments] Next, the most suitable embodiments of the present invention will be described together with the construction process. (Embodiment 1) FIG. 1 is a view showing a state in which a concrete road surface 100 for makeup is installed in a parking lot. 2 to 4
[Fig. 3] is a view showing a construction process of a decorative concrete road surface. FIG. 6 is a view of the road surface as viewed from above. A method of constructing such a decorative concrete road surface 100 will be described with reference to the drawings. First, the place where the decorative concrete 20 is to be constructed is dug down to some extent. This is for places where heavy vehicles such as parking lots run at any time.
This is because the decorative concrete road surface 100 may be damaged unless the base concrete 10 having a certain thickness is cast. In this embodiment, the depth is about 10 cm. Further, in order to make the reinforced concrete to further increase the concrete strength, the reinforced concrete is assembled at the position where the base concrete 10 is placed (FIG. 2). Then, the foundation concrete 10 is placed with the upper surface left around 2 cm, and the foundation concrete 10 is laid and leveled to complete the construction of the foundation concrete 10 (FIG. 3). About 1 while checking the dry condition
After ~ 2 hours, that is, it is confirmed that the makeup concrete 20 is in a dry state to the extent that it does not mix even if the makeup concrete 20 is cast from the upper surface, and that the makeup concrete 20 is integrated with the base concrete 10. And then stone 3
The concrete 20 for makeup mixed with 0 is poured (FIG. 4). In this way, the foundation concrete 10 and the decorative concrete 20 are integrated, and even the comparatively thin decorative concrete 20 can maintain sufficient strength. At this time, the cement 20 itself is colored in accordance with the color tone of the stone material 30 in the makeup concrete 20.

Further, in order to exert a further design effect on the decorative concrete road surface 100, a block-shaped groove 40 is formed on the road surface. As a method of forming the groove 40, a frame body 60 assembled in advance so that it can be embossed in a block shape with a reinforcing bar as shown in FIG. 6 may be formed and embossed (FIG. 7).

After waiting for the concrete surface 100 for makeup to completely harden, when the sandblasting is performed, the surface is wetted with water so that dust is not scattered, and then sandblasted as shown in FIG. By stone 3
The concrete around 0 is removed to expose the surface of the stone material 30 mixed in the concrete. The decorative concrete road surface 100 thus formed is formed as if blocks are spread, and a parking lot with a good aesthetic appearance can be produced (FIGS. 1 and 8). Since the hard stone material 30 is exposed on the surface of the concrete road surface 100 for makeup formed in this manner as compared with cement, the deterioration of the surface makeup surface is slow and the makeup road surface is formed for a long time. Can be set. Further, even if the decorative surface is deteriorated due to a tire or the like, the decorative surface can be revived by performing sandblasting again.

(Embodiment 2) FIG. 9 shows a sidewalk in a park in which a sandblasting-preventing mold material 50 having a surface treated with a rubber plate 50a is used. In this second embodiment, the steps up to the placement of the decorative concrete 20 are the same as in the first embodiment. In the second embodiment, a rubber plate 50a is laid in a place other than a place to be a sidewalk, and further, the rubber plate 50a is laid in a checkerboard pattern on a sidewalk portion and then sandblasting is performed. 10). Then, the tiles can be formed as if they were tiled to form a sidewalk. In addition, such a method and Example 1
By using the concave grooves 40 in combination, not only a geometric pattern but also an art-like pattern as shown in FIG. 11 can be formed.

(Embodiment 3) The makeup concrete road surface 100 according to this embodiment 3 is prepared by first pouring only the colored makeup concrete 20 without mixing the makeup stone material in advance. It is formed by embedding a stone material 30 before the concrete 20 hardens (FIG. 12). This is used when a relatively expensive stone material 30 is used or when it is desired to finely specify the place where the stone material 30 is installed. Subsequent steps can be manufactured in the same manner as in Examples 1 and 2.

[0027]

As described above in detail, according to the present invention, even artificially colored stones or stone materials such as relatively expensive granite or marble, among natural stones, can be used as a base concrete. The two-layer structure with decorative concrete can provide a decorative concrete road surface with a minimum amount of stone material. Further, when the two-layer structure is used, the strength may be reduced, but this can also be integrated by pouring the ground concrete before it is completely dried, so that sufficient strength can be provided. Therefore, it is possible to construct with confidence even in a place where a vehicle runs such as a parking lot. Moreover, since the coloring of the cement and the stone material can be arbitrarily selected, it is possible to select the road surface having various contrasts. Further, by providing a groove on the surface of the decorative concrete, it is possible to form a pattern or art with the groove and the road surface on which the stone material is exposed. Further, it is possible to draw an arbitrary pattern or art by laying the sandblasting-preventing mold material on the road surface and then treating only the places not covered by the sandblasting-preventing mold material.

[0028]

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view showing a makeup concrete road surface according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a construction process of a concrete road surface for makeup according to Example 1 of the present invention.

FIG. 3 is a perspective view showing a construction process of a decorative concrete road surface according to Example 1 of the present invention.

FIG. 4 is a perspective view showing a construction process of a decorative concrete road surface according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a state in which sandblasting is applied in the process of constructing a decorative concrete road surface according to Example 1 of the present invention.

FIG. 6 is a formwork material used to form a concave groove on a decorative concrete road surface according to Example 1 of the present invention.

FIG. 7 is a cross-sectional view showing a step of forming a concave groove on a decorative concrete road surface according to Example 1 of the present invention.

FIG. 8 is a partial top view of a decorative concrete road surface according to the first embodiment of the present invention.

FIG. 9 is a perspective view showing a makeup concrete road surface according to a second embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a sandblasting step of a concrete road surface for makeup according to Example 2 of the present invention.

FIG. 11 is a top view showing another pattern of the decorative concrete road surface according to Example 2 of the present invention.

FIG. 12 is a cross-sectional view showing a process of a concrete road surface for makeup in Example 3 of the present invention.

[Explanation of symbols]

10 Base concrete 20 Makeup Concrete 30 stone 40 groove 50 Sandblast prevention mold material 100 Makeup concrete road surface

Claims (8)

[Claims] 1. A base concrete, and a makeup concrete in which stones are mixed in an upper layer of the base concrete, wherein the foundation concrete and the makeup concrete are integrated, and the surface of the makeup concrete is A concrete road surface for makeup, characterized in that the concrete road surface is formed by removing the concrete by sandblasting and exposing the stone material on the surface. 2. A base concrete, and a makeup concrete in which a stone material is mixed and colored in an upper layer of the base concrete, wherein the foundation concrete and the makeup concrete are integrated. A decorative concrete road surface, characterized in that the concrete on the surface of the decorative concrete is removed by sandblasting to expose a stone material to the surface to form a decorative road surface. 3. The decorative concrete road surface according to claim 1, wherein concave grooves having a predetermined pattern are formed on the surface of the decorative concrete. 4. The step of pouring the base concrete and the step of being able to be integrated with the concrete for make-up, and solidifying the base concrete to such an extent that it will not be agitated and mixed with the base concrete even when pouring the make-up concrete from the upper layer. A step, a step of placing a makeup concrete mixed with a stone material on the upper surface of the base concrete, a step of completely drying the makeup concrete, a surface of the makeup concrete by sandblasting,
A step of removing the concrete around the mixed stones to expose the stones to the surface, and a method of constructing a concrete road surface for exposed cosmetics, which comprises: 5. The step of pouring the base concrete, and the concrete can be integrated with the base concrete, and the base concrete is solidified to such an extent that it cannot be agitated and mixed with the base concrete even when pouring the concrete for makeup from the upper layer. A step of placing a makeup concrete mixed with a stone material on the upper surface of the base concrete, a step of forming a groove having a predetermined pattern on the surface of the makeup concrete, and a step of completely drying the makeup concrete And a step of removing the concrete around the stone material mixed by sandblasting the surface of the makeup concrete to expose the stone material to the surface, and a method for constructing a stone surface-exposed makeup concrete road surface. 6. The step of pouring the base concrete and the step of being able to be integrated with the concrete for make-up, and solidifying the base concrete to such an extent that it cannot be agitated and mixed with the base concrete even when pouring the make-up concrete from the upper layer. A step of placing a makeup concrete mixed with stones on the upper surface of the base concrete, a step of completely drying the makeup concrete, and a certain pattern shape for preventing sandblasting on the surface of the makeup concrete The step of laying the sand blast prevention mold material formed on the, and the concrete surface for makeup by sand blast,
A step of removing the concrete around the mixed stones to expose the stones to the surface, and a method of constructing a concrete road surface for exposed cosmetics, which comprises: 7. The step of placing the base concrete and the step of making it possible to integrate it with the concrete for make-up, and solidifying the base concrete to such an extent that it will not be agitated and mixed with the base concrete when pouring the make-up concrete from the upper layer. A step of placing a makeup concrete mixed with a stone material on the upper surface of the base concrete, a step of forming a groove having a predetermined pattern on the surface of the makeup concrete, and a step of completely drying the makeup concrete And a step of laying a sandblasting-preventing mold material formed in a certain pattern shape on the surface of the decorative concrete to prevent sandblasting, and removing the concrete around the stone material mixed by sandblasting the surface of the decorative concrete to remove the stone material. Is exposed to the surface, and Construction method of cosmetic concrete road surface to expose the stone. 8. The step of pouring the base concrete and the step of being able to be integrated with the makeup concrete, and solidifying the base concrete to such an extent that the makeup concrete is not agitated and mixed even if the makeup concrete is poured from the upper layer. A step of placing a makeup concrete on the upper surface of the base concrete, a step of embedding a stone material on the surface of the makeup concrete, a step of completely drying the makeup concrete, and a step of sandblasting the makeup concrete surface. ,
A step of removing the concrete around the mixed stones to expose the stones to the surface, and a method of constructing a concrete road surface for exposed cosmetics, which comprises: