JPH10280361A - Concrete block having cavity part and its execution method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To meet peripheral nature and improve bilogical living environment by a method wherein a decoration material is disposed in the cavity part formed in the internal part of a concrete block. SOLUTION: Forms 1 are arranged at the upper part of a bottom frame 1a, a natural stone 2 is arranged on the upper surface of the bottom frame 1a, and concrete 3a is placed on the upper part of the natural stone 2. Natural stones 4 serving as a decoration material are arranged on the concrete 3a. An inner mold 6 is arranged on the natural stones 4. The natural stones 4 are then arranged on the upper part and the periphery of the inner mold 6. Remaining concrete 6 is placed on the inner mold 6 and the natural stones 4. After the concrete is cured, the forms 1 are removed, the inlet of the inner mold 6 is released to discharge sand 7, a container 6a is taken out to form a concrete block 10. Thus, when the concrete blocks are laid at a water front place, living environment for aquatic animals and fishes is prepared and living environment for small animals is provided even on a land.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block having a cavity in which a decorative material is provided on the inner surface of a cavity formed inside a concrete block, and a method for constructing the concrete block.

[0002]

2. Description of the Related Art The applicant has completed an artificial megalith having natural stone disposed on the surface thereof in Japanese Patent No. 2567329. If this artificial megalith is placed on the waterside, the surrounding area of the natural stone in the water is suitable for aquatic organisms and fish habitats, and thus provides a habitat for these aquatic organisms and fish. Moreover, the river basin adapts to the natural landscape, even when placed on slopes or waterside.

[0003] In the fishway, it is preferable to provide a resting place for fish in the middle of the run-up road. Conventionally, a square pool-type storage basin made of concrete has been installed as this resting place.

[0004]

However, in the above-described artificial megalith, the concrete block is formed in a solid shape, and the habitat of aquatic organisms and fish is improved by the unevenness of the natural stone on the surface. is there. However, the artificial megalith has a problem that the bottom surface tends to be in close contact with the riverbed, and it is difficult to form a sufficient gap between the two. The applicant continued to observe the ecology of aquatic organisms and fish, and found that if many gaps were formed around the attached artificial megalith, aquatic organisms and fish such as eels,
First, they have found that the habitat of such organisms can be improved and completed the present invention.

A concrete water basin provided in the middle of a fishway or the like is very artificial, and when placed in the middle of a fishway with natural stones on the surface, it is unnatural in view. There is a problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a concrete block having a hollow portion capable of adapting to the surrounding nature and improving the habitat of living things, and a method for constructing the concrete block. .

[0007]

The invention of claim 1 is characterized in that, in a concrete block having a cavity therein, a decorative material is disposed on the inner surface of the cavity.

A second aspect of the present invention is a method of manufacturing a concrete block having a hollow portion, comprising the following steps. 1. The process of casting concrete at the bottom of the formwork. 2. The process of placing decorative materials on concrete. 3. A step of arranging the inner mold corresponding to the cavity on the decorative material. 4, a step of arranging decorative materials around the inner mold. 5, a process of casting concrete on the upper part of the inner mold and the decorative material. 6. The process of removing the inner mold after the concrete has hardened.

[0009] The invention of claim 3 is characterized in that the inner mold is formed by filling a bag-like container with a retrievable filler and closing an inlet.

[0010] The invention of claim 4 is characterized in that the inner mold is formed by stacking a plurality of bag-like containers filled with a filler.

The invention according to claim 5 is characterized in that the filler is a granular material containing at least one of sand, crushed stone, soil, glass beads, wood chips, and styrofoam or a cushioning material for packaging.

[0012] The invention of claim 6 is characterized in that the packing is a fluid.

[0013] The invention of claim 7 is characterized in that the inner die is formed by filling a compressed gas into a bag-shaped container made of an elastic material and closing the inlet of the container.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A first embodiment relating to 3, 5 will be described with reference to FIGS. First, in FIG. 2, 1, the mold 1 is set on the upper part of the bottom frame 1a. The bottom frame 1a may use a floor surface of a work place or a flat ground surface. 2. The natural stone 2 is arranged on the upper surface of the bottom frame 1a. 3. Concrete 3a is cast on the natural stone 2.

4, a natural stone 4 as a decorative material is arranged on the upper surface of the concrete 3a and at a position corresponding to the hollow portion 5. The decorative material is not limited to natural stone, and may be any material suitable for aquatic organisms such as wood and fish habitat. 5, Place the inner mold 6 on the natural stone 4. This inner mold 6
A bag-like container 6a made of synthetic resin or rubber is filled with a filler such as sand 7, and the entrance is closed with a string or the like. The inner mold 6 adjusts the filling amount of the sand 7 and
Molded into a size and shape corresponding to The end of the inner mold 6 is in contact with the inner surface of the mold 1. 6, a natural stone 4 is arranged above and around the inner mold 6 (FIG. 1)
reference).

7. The remaining concrete 3b is cast on the inner mold 6 and the natural stone 4. 8. The natural stone 2 is placed on the concrete 3b. 9. When the concretes 3a and 3b have hardened, the mold 1 is removed, and 10, the entrance of the inner mold 6 is opened to discharge the sand 7 (see FIG. 3), and the container 6a is taken out. As a result, the cavity 5 opened to the outside after the inner mold 6 is removed is formed. The natural stone 4 is arranged on the inner peripheral surface of the cavity 5 (see FIG. 4). 11, the natural stone 2 on the outer periphery and the concrete 3 attached to the cavity 5 are washed with high-pressure water to complete the concrete block 10 shown in FIG.

In the above embodiment, the natural stone 2 is provided on the surface of the concrete block 10;
May be appropriately arranged according to the purpose, and is not necessarily required. The filler may be granular material such as crushed stone, soil, styrofoam, glass beads, wood chips, or the like, in addition to sand. In short, the space corresponding to the cavity 5 when the concrete 3 is cast. And any object that can flow out of the inner mold 6 when the entrance is opened.

Further, as a filler, water is contained in the inner mold 6.
A fluid such as oil may be filled. When the fluid is filled, the portion is deformed when a local pressure is applied to the container 6a from the outside, but in the present invention, when the concrete 3 is cast and the vibrator is applied, the container 6a is cast. Since the concrete 3 that has been liquefied causes a fluid, the shape originally formed as the inner mold 6 is maintained, and the cavity 5 having a desired size is formed.

If a large number of concrete blocks 10 according to the first embodiment are laid on the waterside, irregularities are formed on the surface of the concrete block 10 in the water, and not only a habitat for aquatic organisms and fish is formed. Since the natural stone 4 which is a decorative material is also arranged in the hollow portion 5,
A natural environment has been created and can be used for the habitat of many aquatic organisms and fish such as eels, nanas and the like.

FIGS. 6 and 7 show a second embodiment according to the fourth aspect. The difference from the first embodiment is that the inner mold 1 is different from the first embodiment.
1 is formed by stacking a plurality of containers 12. The container 12 is formed by filling a small bag made of cloth, synthetic resin, or rubber with a filler such as sand 7 and closing the entrance with a string or the like, for example, like a sandbag. I have. The containers 12 are stacked to form an inner mold 11 corresponding to the size and shape of the cavity 5. When the inner mold 11 is to be removed, the container 12 is removed from the opening by one.
You just need to take them out one by one. The filler is not limited to sand, and may be a cushioning material for packing in which air is filled in a granular material such as crushed stone, soil, styrofoam, glass beads, wood chips, or a hollow material. In the second embodiment, in addition to the effects of the first embodiment, since the size of the container 12 is small, it can be easily transported.

FIG. 8 shows a third embodiment of the present invention. The difference from the first embodiment is that the inner mold 13 is filled with a compressed gas in a bag-like container made of an elastic material. It is constructed by closing the entrance of the container. According to the third embodiment, in addition to the effects of the first embodiment, the inner mold 13 contracts when the air inside is evacuated, so that the inner mold 13 can be easily removed. Things.

According to the first aspect of the present invention, the decorative material is disposed in the hollow portion formed inside the concrete block, so that when laid on the waterside, the habitat of aquatic organisms and fish can be prepared, and In this case, there is an effect that a habitat of a small animal can be provided.

According to the second, third, and fifth aspects of the present invention, the decorative material is arranged around the inner mold, concrete is poured, and the inner mold is removed after the concrete is hardened.
It is possible to easily take out the filler and to produce the concrete block easily.

According to the fourth aspect of the present invention, since the inner mold is formed by stacking a plurality of containers, the mold can be simplified, and the handling and transportation can be simplified.

According to the invention of claim 6, since the packing is a fluid, it is easily available.

According to the seventh aspect of the present invention, since a bag-like container made of an elastic material is filled with a compressed gas and the inlet of the container is closed to form an inner mold, the manufacturing is easy.

[0026]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a manufacturing process in a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional front view in a manufacturing process.

FIG. 3 is a longitudinal sectional front view showing a process of removing an inner die.

FIG. 4 is a vertical sectional front view showing a process of cleaning the cavity.

FIG. 5 is a vertical sectional front view of a concrete block.

FIG. 6 is a longitudinal sectional front view showing a manufacturing process in a second embodiment of the present invention.

FIG. 7 is a vertical sectional front view showing a process of cleaning the cavity.

FIG. 8 is a longitudinal sectional front view showing a manufacturing process in a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork 3 Concrete 3a concrete 3b concrete 4 Natural stone (decorative material) 5 Cavity part 6 Inner mold 6a container 7 Sand (filling) 10 Concrete block 11 Inner mold 12 Container 13 Inner mold

Claims (7)

[Claims] 1. A concrete block having a hollow portion, wherein a decorative material is provided on an inner surface of the hollow portion. 2. A method of manufacturing a concrete block having a cavity, comprising the following steps. 1. The process of casting concrete at the bottom of the formwork. 2. The process of placing decorative materials on concrete. 3. A step of arranging the inner mold corresponding to the cavity on the decorative material. 4, a step of arranging decorative materials around the inner mold. 5, a process of casting concrete on the upper part of the inner mold and the decorative material. 6. The process of removing the inner mold after the concrete has hardened. 3. The concrete block having a hollow part according to claim 2, wherein the inner mold is configured by filling a bag-like container with a removable filler and closing an inlet. Construction method. 4. The method of claim 2, wherein the inner mold is formed by stacking a plurality of bag-like containers filled with a filling material. 5. The packing according to claim 1, wherein at least sand, crushed stone,
5. The method of claim 2, 3 or 4, wherein the method is a granular material containing one kind of soil, glass beads, wood chips, and styrofoam or a cushioning material for packaging. 6. The method of claim 2, wherein the filler is a fluid. 7. The concrete having a hollow portion according to claim 2, wherein the inner mold is configured by filling a compressed gas into a bag-shaped container made of an elastic material and closing an inlet of the container. Block construction method.