JPH10151611A - Flat concrete plate for engineering landscape and manufacture of the plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the formation of a flat concrete plate full of an aesthetic sense by producing a natural warmth on the surface of a concrete by a method wherein a wooden piece is embedded in a flat concrete plate for engineering landscape under the state that some part of the wooden piece is exposed. SOLUTION: In a flat concrete plate 10, a wooden piece 2 is embedded in a concrete block 1 under the state that some part of the wooden piece is exposed. The wooden piece 2 is a near rectangular parallelepiped-like plate, on the rear surface 2a of which recessed grooves 3 are formed separating from each other at a predetermined interval. In this recessed groove 3, the width of an inner space is formed wider than that of an inlet. As a result, the wooden piece 2 is prevented from slipping from the solidified concrete block 1. Further, on the outer surface 2b of the wooden piece 2, an undulation 4, for example, is formed under the consideration that no slippage of a person walking on the surface causes to occur. In the flat concrete plate 10, through the solidification of the fluid concrete entered in the inner spaces of the wooden piece 2, the wooden piece 2 and a concrete are made into an integral body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete slab for civil engineering scenery and a method for producing the slab.

[0002]

2. Description of the Related Art In recent years, in a park, a station plaza, or the like, a preformed concrete slab has been used for leveling a sidewalk or the like.

[0003] Such a flat plate is formed by a mold, but is usually a square shape, and can be arranged without gaps by being abutted against each other.

[0004]

However, since such a concrete flat plate is conventionally formed of a simple concrete block, if it is desired to make a change with a pattern or the like, a colorant is mixed into the concrete itself, or This was done by attaching tiles to the concrete surface.

However, in recent years, when a concrete flat plate is used for leveling a park or the like, it has been desired to create a so-called human-friendly environment in which natural warmth can be felt.

[0006] In view of such circumstances, an object of the present invention is to provide a concrete slab for a civil engineering landscape that can impart a more natural feeling to a concrete surface, and a method of manufacturing the slab.

[0007]

According to the present invention, a piece of wood is exposed and embedded in a concrete slab for civil engineering scenery.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the concrete slab for civil engineering and landscape according to the present invention, connection between concrete and wood pieces is performed by solidification of poured fluidized concrete in a formwork.

[0009] In this case, a concave groove whose inner space is made wider than that of the entrance is formed in a flat wooden piece, and concrete flowing into the concave groove is solidified so that the concrete and the wooden piece are separated. Can be integrated. However, it can also be fixed using an adhesive.

[0010] Further, such a concrete plate can be easily manufactured by arranging a piece of wood in a mold in advance and then pouring concrete.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a concrete slab 10 for civil engineering scenery according to an embodiment of the present invention.

In this concrete plate 10, 600 m
Concrete block 1 of mx 600mm x 70mm
A piece of wood 2 is partially exposed and buried. Wood piece 2
As shown in FIG. 2, it is made of a substantially rectangular parallelepiped plate material, and concave grooves 3 are formed on the back surface 2a at predetermined intervals. In this embodiment, two concave grooves 3 are formed.
The number of the concave grooves 3 is not limited to two, and may be increased according to the size of the wooden piece 2. The recess 3 is formed such that the width of the inner space 3a is wider than the width of the entrance 3b as described later. This prevents the piece of wood 2 from falling out of the consolidated concrete block 1. Also, on the outer surface 2b of the wooden piece 2, for example, wavy irregularities 4 are alternately formed, so that a person is prevented from slipping when walking on it.

It is preferable that such a piece of wood 2 has a low water absorption, a high corrosion resistance, and a high hardness. Specific varieties include eucalyptus, bongo, ipe, and the like. In particular, if eucalyptus wood is used, it can be used without any surface treatment.

The wooden piece 2 may be arranged so as to cover the whole by using a large plate material instead of covering a part of the concrete block 1 as shown in FIG. 1 or a concrete plate shown in FIG. As shown in FIG. 20, the concrete surface 1a and the wood piece 2 may be arranged so as to alternately appear in layers. Further, the concrete flat plate 3 shown in FIG.
As in the case of 0, two pieces of wood 2 and 2 can be used to arrange in an L shape. As described above, there are various ways of arranging the wooden pieces 2 and the present invention is not limited to these examples. Further, the entire shape of the wooden piece 2 is not limited to the rectangular parallelepiped shape as in the embodiment, and may be formed by treating a shape such as a triangle, a square, a round, or a petal. In any case,
In such concrete slabs 10, 20, and 30, when the fluidized concrete that has entered the space 3a inside the wood piece 2 is solidified, the wood piece 2 is integrated with the concrete. Therefore, the seemingly unfamiliar concrete and the wooden piece 2 can be tightly fixed.

When a large number of concrete flat plates 10 shown in FIG. 1 are laid out over a wide range, the wooden pieces 2 are not arranged by arranging them in two rows or one row as shown in FIG. They can be arranged in a continuous straight line. In addition, as shown in FIG. 4, when a large number of concrete flat plates 30 in which the wood pieces 2 are incorporated in an L shape are laid over a wide range, as shown in FIG. Wood pieces 2 at the four corners to define the surface
Is arranged, the wood pieces 2 can be arranged in a lattice shape. The method of arranging these various concrete flat plates is not limited to the embodiment. Also, different types of concrete flat plates can be used in combination.

The concrete slabs 10, 20, 30 and the like in which the wooden pieces 2 are embedded can be used for a wide range of uses such as a pavement in a park or a plaza. Hereinafter, a method of manufacturing the concrete plate 10 will be described with reference to FIGS. 7A to 7D using the concrete plate 10 as an example.

First, as shown in FIG. 7A, the wooden piece 2 is set to a predetermined position, that is, one side, in a mold frame 31 for molding the concrete plate 10.
Next, as shown in FIG. 7B, pebbles 32 are laid in the formwork 31. Since the pebbles 32 are exposed later on the surface of the concrete block 1, it is preferable to use stones having a good appearance to some extent. Pebble 32
Is poured, concrete 33 is poured into the formwork 31 as shown in FIG. Of course, the concrete 33 is filled with materials used for ordinary concrete driving, such as sand, quarry, and coagulant, as necessary.

When the poured concrete 33 is solidified, the form 31 is removed from the solidified concrete 33 as shown in FIG. After that, as shown in FIG.
The surface is finished by performing sandblasting. Along with this, as shown in FIG. 7F, a part of the surface of the pebble 32 is exposed to the outside. In the completed concrete slab 10, the concrete that has entered the inner wide space 3a from the narrow entrance 3b is solidified in the space 3a. Therefore, the plate-shaped wooden piece 2 can be integrated with the concrete.

Since the concrete slab 10 is formed in a mold, it can be formed in large quantities at low cost. Such concrete slabs 10 are carried to a site and arranged in a predetermined range for leveling a park or making a sidewalk.

The concrete plate 10 has a height of, for example, 7
Since it is about 0 mm, when laying it down, if it is arranged side by side with the side walls facing each other, if one flat plate 1
For example, even if 0 is strongly pressed down from above, there may be a slight inclination, but since the lower portions abut each other, the flat plates 10 will not be disturbed and lifted. Such a concrete plate 10 is exposed to rain or the like outdoors, but is hardly corroded because of its high corrosion resistance. However, it is also possible to apply a corrosion inhibitor such as a primer.

In such a square where the concrete flat plates 10 are laid out, even if the concrete surface freezes, the surface of the wooden piece 2 does not freeze, so that safety when walking can be ensured. In addition, in a sidewalk or the like where the floors are laid, the wooden pieces 2 are exposed in some places from the concrete surface, so that a natural feeling can be brought out. Therefore, without damaging the surrounding landscape,
You can enjoy a so-called human-friendly environment. In addition, when a person walks on the floor, there is little fatigue because of the wood pieces.

The embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the concrete block 35 and the wood piece 2 are integrated in the mold 31. However, as shown in FIG. When the adhesive 23 is used, a concrete block 36 having a partially recessed surface is formed in advance, and a piece of wood 2 matching the recess is formed.
An adhesive 23 may be applied to the lower surface 21a of the first and the like, and the wooden piece 21 may be pressed against the concrete block 36.
In that case, the lower surface 21a of the wood piece 21 may be flat. Further, as in the concrete flat plate 50 shown in FIG. 9, a concrete block 51 is formed to have a substantially L-shaped cross section, and a wooden piece 52 is embedded in a part of the block. Can be provided.

The shape of the groove 3 formed in the wood piece 2 or the like is not limited to the embodiment. For example, a T-shaped groove 37 as shown in FIG. 10 (a), an L-shaped groove 38 as shown in FIG. 10 (b), or a spherical groove as shown in FIG. 10 (c). The concave groove 39 may be used. In short, it is only necessary that the concave groove is formed so that the space inside is wider than the entrance.

[0024]

As described above, in the concrete slab for the civil engineering scenery according to the present invention, since a piece of wood is partially exposed and incorporated in a part of the concrete, natural warmth can be created on the concrete surface. it can. Therefore, it is possible to form a concrete plate having an aesthetic sense.

In the concrete flat plate for civil engineering scenery according to the present invention, concrete enters into the concave groove formed in the wood piece and solidifies there, so that the concrete and the wood piece are easily and surely integrated. be able to. Furthermore, since the surface of the wood piece in the obtained concrete plate is hardly covered with ice, it is possible to secure a safety surface when a person walks.

In the method for manufacturing a flat plate according to the present invention,
When the concrete is molded in the formwork, the concrete and the wood piece are integrated at the same time, so that the production is simple and the production cost is low.

[Brief description of the drawings]

FIG. 1 is a perspective view of a concrete flat plate according to one embodiment of the present invention.

FIG. 2 is a rear perspective view of a piece of wood used in the embodiment.

FIG. 3 is a plan view of a concrete slab according to a second embodiment of the present invention.

FIG. 4 is a plan view of a concrete slab according to a third embodiment of the present invention.

FIG. 5 is a plan view showing an example of how to arrange the concrete flat plates shown in FIG.

FIG. 6 is a plan view showing an example of how to arrange the concrete flat plates shown in FIG.

FIG. 7A is a schematic cross-sectional view showing a state in which a piece of wood is set in a mold as a first step of the method for producing a concrete flat plate according to the present invention, and FIG. 7B is a concrete diagram according to the present invention. FIG. 7C is a schematic cross-sectional view showing a state in which pebbles are placed in a mold as a second step of the method of manufacturing a flat plate, and FIG. FIG. 7D is a schematic cross-sectional view showing a state in which a form is removed from solidified concrete as a fourth step of the method for manufacturing a concrete slab according to the present invention. FIG. 7E is a schematic cross-sectional view showing a state where sand blasting is performed on the hardened concrete as the fifth step of the method for manufacturing a concrete slab according to the present invention, and FIG. 7F is the concrete according to the present invention. It is a schematic sectional view showing a state in which sandblasting is complete finished as a sixth step of the manufacturing method of the plate.

FIG. 8 is a cross-sectional view showing another method for manufacturing a concrete slab.

FIG. 9 is a perspective view when a concrete slab according to a fifth embodiment of the present invention is used for stairs.

FIG. 10 (a) is a cross-sectional view showing a modified example of the concave groove formed in the concrete flat plate according to the present invention.
FIG. 10B is a cross-sectional view showing another modified example of the groove formed in the concrete plate according to the present invention. FIG. 10C is still another modified example of the groove formed in the concrete plate according to the present invention. FIG.

[Explanation of symbols]

 2 Wood piece 3 Groove 3a Space 3b Entrance 10, 20, 30, 40, 50 Concrete plate 31 Formwork 33 Concrete

Claims (3)

[Claims] 1. A concrete flat plate for civil engineering scenery, wherein a flat wooden piece is exposed at least partially to the outside and incorporated. 2. The civil engineering landscape according to claim 1, wherein the flat wooden piece is provided with a concave groove formed so that an inner space is wider than an entrance. Concrete slab. 3. When the concrete flat plate is manufactured in the formwork, a flat plate-shaped piece of wood having a concave groove formed such that an inner space is larger than an entrance on one side is formed in the formwork. A method for manufacturing a concrete slab for a civil engineering landscape, wherein the concrete slab is placed and the concrete is poured into a formwork to integrate the flat wood piece with the concrete.