JP2003154509A - Decorative concrete panel, method for manufacturing the same, and concrete wall body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease a manufacturing cost of a decorative concrete panel by making a design surface F of the decorative concrete panel 3 a novel relief pattern. SOLUTION: A group of building stones 39 provided by densely combining many building stones with a hardened concrete 5 are integrally provided. A surface of the group of building stones 39 is constituted so as to become a decorative surface F. The surface of the group of building stones 39 is constituted so as to present an irregular pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative concrete panel having a design surface and made of hardened concrete, a method for producing a decorative concrete panel for producing this decorative concrete panel, and a large number of the above decorative concrete panels. A concrete wall body that is physically joined.

[0002]

2. Description of the Related Art A concrete retaining wall (an example of a concrete wall) is constructed on a side slope of a road or on a bank of a river to prevent outflow of sediment or flood in a river. Is made up of many concrete panels joined together. Further, in recent years, in concrete wall bodies such as concrete retaining walls, a decorative concrete panel having a visually appealing design surface has come to be used as a concrete panel in order to appeal to human eyes and provide a comfortable stimulus.

[0003]

By the way, among conventional decorative concrete panels, there are those in which a large number of irregularities are formed on the design surface, those in which natural stones are embedded in a scattered manner on the design surface, and the like. An object of the present invention is to reduce the manufacturing cost of a decorative concrete panel while making the decorative surface of the decorative concrete panel a novel relief pattern.

[0004]

According to the invention as set forth in claim 1, a decorative concrete panel having a design surface and made of hardened concrete (casting concrete is hardened) is used. A stone group formed by densely combining a large number of stone materials to concrete is integrally provided, and the surface of this stone group is configured to be the above-mentioned design surface, and further, the surface of the stone group presents an uneven pattern. It is characterized by being configured.

According to the invention specifying matter of claim 1,
By configuring the surface of the stone group to be the design surface of the decorative concrete panel and by configuring the surface of the stone group to exhibit the uneven pattern, the naturalness of the surface of the stone group and the unevenness The stability of the pattern acts synergistically to make the decorative surface of the decorative concrete panel a novel relief pattern in harmony with nature. In other words, in order to make the design surface of the decorative concrete panel a novel relief pattern, it suffices if the surface of the stone group exhibits the above-mentioned concavo-convex pattern.

The invention according to claim 2 is characterized in that, in addition to the matters specifying the invention according to claim 1, the surfaces of a large number of stone materials are each configured to be a split surface.

According to the invention specifying matter of claim 2,
In addition to the action according to the invention specifying matter of claim 1, since the surface of each stone material is a split skin surface, the naturalness of the surface of the stone material group becomes strong and the decorative surface of the decorative concrete panel The novelty of the relief pattern is improved.

According to the third aspect of the invention, the mold member and the mold bottom member provided on the bottom side of the mold member are used.
In the decorative concrete panel manufacturing method for producing a decorative concrete panel having a design surface, in order to make the surface of a stone group formed by closely combining a large number of stone materials become the design surface exhibiting an uneven pattern, the mold bottom part While contacting the mold surface exhibiting a mold pattern corresponding to the concavo-convex pattern in the material so that the surface of the stone is along, a stone laying step of laying a large number of stones on the die bottom member, and the stone laying step After completion, a permeation-preventing-material filling step of filling a concrete permeation-preventing material capable of preventing permeation of the cast concrete into a small gap between a large number of stone materials,
After the permeation-preventing-material-filling step is completed, the poured concrete is poured into the formwork member to cure the cast concrete, so that the hardened concrete (the cast concrete is hardened) and the stone group are After the concrete inflow hardening step to be integrated and the concrete inflow hardening step are completed, the concrete injecting step of taking out the hardened concrete together with the stone group from the formwork member and the mold bottom member, and the concrete inflow hardening step are completed. After that, the method further comprises a permeation preventive material removing step of removing the concrete permeation preventive material in the small gap while leaving the concrete permeation preventive material integrally attached to the hardened concrete.

According to the invention specifying matter of claim 3,
Since the surface of the stone group formed by closely combining a large number of stone materials becomes a design surface exhibiting an uneven pattern, the naturalness of the surface of the stone group and the stability of the uneven pattern act synergistically. , The decorative surface of the decorative concrete panel can have a unique relief pattern in harmony with nature. In other words, in order to make the design surface of the decorative concrete panel a novel relief pattern, it suffices if the surface of the stone group exhibits the above-mentioned concavo-convex pattern.

In the invention according to claim 4, in a concrete wall body in which a large number of decorative concrete panels are integrally connected, each decorative concrete panel is the invention according to claim 1 or 2. It is characterized in that it is provided with specific items.

According to the invention specifying matter of claim 4,
The same action as the action according to the invention specifying matter according to claim 1 or 2 is achieved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 to 4, a concrete retaining wall (an example of a concrete wall body) 1 according to an embodiment of the present invention is a side portion of a road for preventing outflow of sediment. It is to be installed on a slope, etc., and is in the vertical direction ("upper" is the upper side in Figs. 1, 2 and 4 and Fig. 3 is the front toward the paper surface, and "lower" is the upper side in Figs. The bottom in FIG. 4, the back in FIG. 3 toward the paper surface and the left-right direction (“left” are left in FIG. 1, the front toward the paper in FIG. 2, the right in FIGS. 3 and 4, and the “right” are 1 in the right, in FIG. 2 the back toward the paper, FIG. 3 and FIG.
In the left), a large number of decorative concretes 3 arranged side by side are integrally connected.

The decorative concrete panel 3 and the method for producing decorative concrete, which are the constituent elements of the concrete retaining wall 1, will be described in detail below.
The whole will be described.

The decorative concrete panel 3 has a design surface F and is made of hardened concrete 5 (the hardened concrete 5'is poured). A connection projection 7 is formed on the upper side of the hardened concrete 5, and a connection recess 9 is formed on the lower side of the hardened concrete 3.
Here, the connection concave portion 9 is configured to be engageable with the connection convex portion 7 of the decorative concrete panel 3 adjacent to the lower side.

Further, water draining grooves 11 and 13 extending vertically are formed on both left and right sides of the hardened concrete 5, and water communicating with the water draining grooves 11 and 13 is formed at the center on both left and right sides of the hardened concrete 5. The cut half holes 15 and 17 are formed, respectively. Here, among the decorative concrete panels 3 adjacent to each other on the left and right, the drainage halfway hole 17 of the leftward decorative concrete panel 3 and the drainage halfway hole 15 of the rightward decorative concrete panel 3 form a drainage passage 19. The drainage passage 19 is connected to a drainage pipe 21.

Further, a plurality of panel connecting upper inserts 23 are embedded in the upper portion of the back side of the hardened concrete 5 (the "back side" is the right side in FIG. 1, the lower side in FIG. 2, and the front side in FIG. 3). Therefore, a plurality of lower inserts 25 for panel connection are buried in the lower part of the back side of the hardened concrete 5, and a plurality of back plate installation inserts 27 are buried in the back side of the hardened concrete 5. Here, the panel connection upper insert 23 is a hole into which the L-shaped screw 31 penetrating the lower portion of the connection fitting 29 is screwed in order to connect the vertically adjacent decorative concrete panels 3, and the panel connection lower insert 25. Is a hole into which an L-shaped screw 31 that penetrates the upper part of the connection fitting 29 is screwed in to connect the vertically adjacent decorative concrete panels 3. In addition, the back plate installation insert 27 is connected to the back plate 33 by the connecting rod 3
The tip of 5 is a hole to be inserted.

The hardened concrete 5 is integrally provided with a stone material group 39 in which a large number of stone materials 37 are densely combined, and the surface of the stone material group 39 is a design surface F. Further, the surface of the stone group 39 is configured so as to present a concavo-convex pattern having a plurality of stages (three stages in the embodiment of the present invention) of smooth concavo-convex surfaces F1, F2, F3. . Further, the surfaces of a large number of stone materials 37 are each configured to be a split surface.

Here, a thin stone material 37 is used to form the concave portions of the uneven pattern, and a thick stone material 37 is used to form the convex portions of the uneven pattern. Further, the uneven pattern can be variously changed in accordance with the features (characteristics of municipalities, etc.) of the construction site of the concrete retaining wall 1. The recesses and protrusions of the concavo-convex pattern refer to the recesses and protrusions of the stone group 39, and do not refer to the partial recesses and protrusions of one stone 37.

Further, a concrete permeation preventive material 41 such as a stone sludge capable of preventing permeation of the cast concrete 5'is integrally attached in the small gaps of the many stone materials 37 on the surface of the hardened concrete 5. Note that industrial agar, clay, or the like may be used instead of the stone sludge.

Next, a method for manufacturing a decorative concrete panel will be described with reference to FIGS.

This decorative concrete panel manufacturing method comprises:
A method of manufacturing a decorative concrete panel 3 using a mold member 43 and a mold bottom member 45 provided on the bottom side of the mold member 43, which is a stone material spreading step and a penetration preventing material filling step described below. It is equipped with an insert mounting process, a concrete inflow hardening process, a concrete removal process, and a permeation prevention material removal process.

Here, the mold member 43 includes a connection concave portion 7, a connection convex portion 9, drainage grooves 11 and 13, drainage half-holes 15 and 1.
It has a shape portion corresponding to 7 and the like. Further, the mold bottom member 45 has a mold surface 47 exhibiting a mold pattern corresponding to the above-mentioned concavo-convex pattern.

In order to ensure that the surface of the stone group 39 formed by closely combining a large number of stones 37 becomes the design surface F exhibiting the above-mentioned concavo-convex pattern, the stone 37 is formed on the mold surface 47 of the mold bottom member 45. A large number of stone materials 37 are laid on the mold bottom member 45 while making contact with each other so that the surfaces thereof follow (see FIG. 5). Here, the mold bottom member 4
The thin stone material 37 is placed in the convex portion of the die surface 47 in 5, and the thick stone material 37 is placed in the concave portion of the die surface 47 in the die bottom member 45.

Permeation-preventing Material Filling Step After the above-mentioned stone-laying step is finished, a concrete permeation-preventing material 41 capable of preventing permeation of the cast concrete 5 is filled into the small gaps between the many stones 37 (see FIG. 6). ). Here, the filling surface of the concrete permeation preventive material 41 is made flush with each other by appropriately vibrating the mold frame member 43 and the mold bottom member 45. In addition, at least one-third or more of each stone 37 is projected to the filling surface of the concrete permeation preventive material 41.

Step of attaching inserts, etc. After the step of filling the permeation preventive material is completed, the form member 4
A plurality of panel connection upper inserts 23, a plurality of panel connection lower inserts 25, and a plurality of back plate installation inserts 27 are attached to predetermined positions in the mold 3 by insert attachments 49 at predetermined positions in the frame member 43 ( (See FIG. 6). Further, a reinforcing reinforcing bar (not shown) is attached to an appropriate position in the form member 43 by a reinforcing reinforcing bar attaching tool (not shown).

Concrete Inflow Hardening Step After the above-described insert attaching step is completed, the mold member 4
By pouring the casting concrete 5'into the 3 and hardening the casting concrete 5 ', the hardened concrete 5'
(Plastic concrete 5'hardened) and stone group 39
Are integrated (see FIG. 7). Here, the inflow amount of the poured concrete 5 ′ is determined according to the thickness of the hardened concrete 5 of the decorative concrete panel 3.

Concrete Extracting Step After the concrete inflow hardening step is completed, the hardened concrete 5 is taken out together with the stone group 39 from the mold member 43 and the mold bottom member 45 (see FIG. 8).

Permeation preventive material removing step After the concrete extracting step is completed, the stone group 39
By washing the concrete with water, leaving the concrete permeation preventive material 41 integrally attached to the hardened concrete 5, the concrete permeation preventive material 41 in the small gaps of the many stones 37
Are removed (see FIG. 8). This completes the production of the decorative concrete panel 3.

Further, when the concrete retaining wall 1 is constructed from a large number of decorative concrete panels 3, it is carried out as follows.

That is, a large number of decorative concrete panels 3 are connected so as to be aligned in the vertical and horizontal directions on a foundation (not shown) that has been preliminarily constructed on the side slopes of the road. Then, poured concrete (not shown) between a large number of decorative concrete panels 3 and the back plate 33,
The cast concrete is hardened. As a result, a large number of decorative concrete panels 3 lined up in the vertical direction and the horizontal direction can be integrated, and the concrete retaining wall 1
Is completed.

Next, the operation of the embodiment of the present invention will be briefly described.

By configuring the surface of the stone group 39 to be the design surface F of the decorative concrete panel 3 and the surface of the stone group 39 to have an uneven pattern,
The naturalness of the surface of the stone group 39 and the stability of the concavo-convex pattern synergistically act to make the design surface F of the decorative concrete panel 3 a novel relief pattern in harmony with nature. In other words, in order to make the design surface F of the decorative concrete panel 3 into a novel relief pattern, it is sufficient if the surface of the stone group 39 has the above-mentioned uneven pattern.

Since the surface of each stone 37 is a split surface, the naturalness of the surface of the stone group 39 is strengthened, and the novelness of the relief pattern on the design surface F of the decorative concrete panel 3 is improved. .

As described above, according to the embodiment of the present invention, in order to make the design surface F of the decorative concrete panel 3 have a novel relief pattern, the surface of the stone group 39 formed by combining a large number of stones 37 is Since it is sufficient to provide the uneven pattern, it is possible to use the stone excavated material discharged from the stone factory, the quarry, or the like as the stone 37 forming the stone group 39. Therefore, while making the design surface F of the decorative concrete panel 3 a novel relief pattern, the manufacturing cost of the decorative concrete panel 3 can be reduced, and at the same time, effective use of resources can be contributed.

The present invention is not limited to the description of the embodiments of the invention as described above. For example, a large number of decorative concrete panels 3 are used for concrete wall bodies other than the concrete retaining wall 1, and various other types. It can be implemented in various ways.

[0036]

According to the invention described in any one of claims 1 to 4, a large number of stone materials are combined in order to make the design surface of the decorative concrete panel a novel relief pattern. Since it is sufficient if the surface of the stone group consisting of presents an uneven pattern, as a stone material constituting the stone group,
It becomes possible to use the rubble stone discharged from a stone factory or a quarry. Therefore, it is possible to reduce the manufacturing cost of the decorative concrete panel while contributing to the effective use of resources while making the design surface of the decorative concrete panel a novel relief pattern.

[Brief description of drawings]

FIG. 1 is a perspective view of a decorative concrete panel.

FIG. 2 is a vertical cross-sectional view of a part of a concrete retaining wall.

FIG. 3 is a cross-sectional view of a decorative concrete panel.

FIG. 4 is a rear view of the decorative concrete panel.

FIG. 5 is an explanatory view of a method for manufacturing a decorative concrete panel.

FIG. 6 is an explanatory diagram of a method for manufacturing a decorative concrete panel.

FIG. 7 is an explanatory diagram of a method for manufacturing a decorative concrete panel.

FIG. 8 is an explanatory diagram of a method for manufacturing a decorative concrete panel.

[Explanation of symbols]

1 concrete retaining wall 3 decorative concrete panels 5 hardened concrete 37 stone 39 stone group 41 Concrete penetration prevention material 43 Formwork member 45 type bottom member

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Claims (4)

[Claims] 1. A decorative concrete panel having a design surface and made of hardened concrete (casting concrete hardened), in which a stone group formed by densely combining a large number of stone materials with the hardened concrete is integrated. The decorative concrete panel is characterized in that the surface of the stone material group is configured to be the design surface, and the surface of the stone material group has a concavo-convex pattern. 2. The decorative concrete panel according to claim 1, wherein the surfaces of a large number of stone materials are each configured to be a split surface. 3. A decorative concrete panel manufacturing method for manufacturing a decorative concrete panel having a design surface, using a mold member and a mold bottom member provided on the bottom side of the mold member. In order for the surface of the stone group formed by combining the above to be the design surface exhibiting the uneven pattern, so that the surface of the stone material follows the mold surface exhibiting the mold pattern corresponding to the uneven pattern in the mold bottom member. A stone laying step of laying a large number of stone materials on the mold bottom member while making contact with each other, and after the stone laying step is completed, it is possible to prevent the pouring concrete from permeating into a small gap between the plurality of stone materials. After the completion of the permeation preventive material filling step of filling the concrete permeation preventive material and the permeation preventive material filling step, the concrete is poured into the formwork member and the concrete is poured into the concrete. And the mold bottom and the mold bottom after the concrete inflow hardening step of integrating the stone group with the hardened concrete (the hardened concrete is hardened) by hardening After the concrete extraction step of removing the hardened concrete together with the stone group from the material, and the concrete inflow hardening step is completed, the concrete permeation preventive material integrally attached to the hardened concrete is left, and the inside of the small gap is A method for manufacturing a decorative concrete panel, comprising a step of removing a permeation preventive material for removing a concrete permeation preventive material. 4. A concrete wall body formed by integrally connecting a large number of decorative concrete panels, wherein each decorative concrete panel is provided with the matters specifying the invention of claim 1 or 2, respectively. And concrete wall.