JPH1146619A - Concrete block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a concrete block which can reduce cost of concrete block used for an artificial fish reef or the like, and expand consumption of shells. SOLUTION: This concrete block 10 is obtained by using concrete 12 which contains at least broken shell pieces 13 or broken pottery, porcelain, ceramic, concrete or asphalt pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a concrete block used for artificial reefs and the like.

[0002]

2. Description of the Related Art Conventionally, a large number of concrete blocks have been laid to protect the river bottom and slopes of rivers. Since these concrete buildings are required to have strength, durability and the like, sand, gravel, crushed stone and the like are also used as aggregates to be used. In recent years, concrete blocks have often been submerged in water and used as artificial fishing reefs. These artificial reefs also use aggregates with the same composition as the concrete buildings described above.

[0003]

The concrete block as an artificial reef does not require much strength as compared with the above-mentioned concrete structure. On the other hand, in pearl and oyster cultivation areas, used shells accumulate, making it difficult to dispose of them. Therefore, using these shells as aggregates to produce concrete blocks for artificial reefs and the like has been studied.

The present invention has been made in view of the above circumstances, and has as its object to reduce the cost of concrete blocks used for artificial reefs and the like, and to increase the consumption of shells. To provide.

[0005]

According to the first aspect of the present invention, at least a shell, pottery, porcelain, ceramic,
It has a feature in that it is formed by casting concrete containing one of crushed pieces of concrete and asphalt.

The invention of claim 2 is characterized in that the concrete block is provided with a cavity, and a large number of shells are accommodated in the cavity.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete block 10 for fishing reef according to a first embodiment of the present invention will be described below with reference to FIGS. In the concrete block 10, natural stones 11 are arranged along the inside of a not-shown formwork, and concrete 12 is cast thereon. The concrete 12 contains, as aggregate, shells 13 such as pearls and oysters, in addition to sand, gravel, crushed stones, and the like.

Then, natural stones 11 are further arranged on the upper surface of the cast concrete 12, and an anchor 14 is driven into the upper portion. When the surface of the concrete 12 is washed out with high-pressure water when the concrete 12 is semi-hardened, the shell 13 is exposed and the surface of the concrete block 10 is decorated with the shell 13. If this concrete block 10 is submerged on the riverbed or the seabed, it can be used as an artificial reef.

The sand and gravel in the concrete 12
The mixing ratio of the common aggregate such as crushed stone and the shell 13 may be appropriately selected according to the strength, and only the shell 13 may be used as the aggregate if the strength as the fishing reef is satisfied. The aggregate to be mixed is not limited to shells, but may be crushed pieces of pottery, porcelain, ceramic, concrete, or asphalt, and the crushed pieces may not necessarily have the same particle size. Furthermore, the shape of the concrete block 10 is
The present invention is not limited to the first embodiment. For example,
It may be formed in a columnar shape and used as a block for a vehicle stop, or may be used as a block standing up at a place where entry into a vehicle or the like is prohibited. The surface decoration by the shell increases the design effect.

According to the first embodiment, the following effects can be obtained. (1) Since the discarded shell 13 can be used as aggregate, the cost of the concrete block 10 can be reduced and resources can be reused. (2) Since the surface of the artificial reef is decorated with shells 13, it can be adapted to the natural scenery, and is also suitable for the habitat of fish and shellfish. (3) Since the consumption of shells increases, the problem of the place of production can be solved at the same time.

FIG. 3 shows a second embodiment according to the second aspect, which is applied to a concrete block 20 having a hollow portion filed by the applicant in Japanese Patent Application No. 9-43498. The difference from the first embodiment is that the concrete block 20 has a cavity 21 formed therein. A large number of shells 13 are accommodated in the hollow portion 21.

According to the second embodiment, in addition to the effects of the first embodiment, the inside of the cavity 21 provides a habitat for small animals, and water flows through the side of the concrete block 20 to pass through the inside of the cavity 21. Since the water is circulated, suspended matter or filth is removed while passing between the stacked shells 13, so that the water is purified.

[0013]

The present invention reduces the cost of concrete blocks because it is formed by casting concrete containing at least one of shells or crushed pieces of pottery, porcelain, ceramic, concrete, or asphalt as an aggregate. In addition, it has the effect of increasing the consumption of shells. Further, if a hollow portion is provided in the concrete block and a large number of shells are accommodated in the hollow portion, the effect of increasing the water purification action can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment.

FIG. 2 is a plan view.

FIG. 3 is a longitudinal sectional front view of a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Concrete block 12 Concrete 13 Seashell 20 Concrete block

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[Procedure amendment]

[Submission date] August 6, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Concrete block

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a concrete block used for artificial reefs and the like.

[0002]

2. Description of the Related Art Conventionally, a large number of concrete blocks have been laid to protect the river bottom and slopes of rivers. Since these concrete buildings are required to have strength, durability and the like, sand, gravel, crushed stone and the like are also used as aggregates to be used. In recent years, concrete blocks have often been submerged in water and used as artificial fishing reefs. These artificial reefs also use aggregates with the same composition as the concrete buildings described above.

[0003]

The concrete block as an artificial reef does not require much strength as compared with the above-mentioned concrete structure. On the other hand, in pearl and oyster cultivation areas, used shells accumulate, making it difficult to dispose of them. Therefore, using these shells as aggregates to produce concrete blocks for artificial reefs and the like has been studied.

The present invention has been made in view of the above circumstances, and has as its object to reduce the cost of concrete blocks used for artificial reefs and the like, and to increase the consumption of shells. To provide.

[0005]

According to the first aspect of the present invention, at least a shell, pottery, porcelain, ceramic,
Pour concrete containing one of the crushed pieces of concrete or asphalt, wash out the surface and remove aggregates such as shells
It has a characteristic when exposed .

The invention of claim 2 is characterized in that the concrete block is provided with a cavity, and a large number of shells are accommodated in the cavity.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete block 10 for fishing reef according to a first embodiment of the present invention will be described below with reference to FIGS. In the concrete block 10, natural stones 11 are arranged along the inside of a not-shown formwork, and concrete 12 is cast thereon. The concrete 12 contains, as aggregate, shells 13 such as pearls and oysters in addition to sand, gravel, crushed stones, and the like.

Then, natural stones 11 are further arranged on the upper surface of the cast concrete 12, and an anchor 14 is driven into the upper portion. When the surface of the concrete 12 is washed out with high-pressure water when the concrete 12 is semi-hardened, the shell 13 is exposed and the surface of the concrete block 10 is decorated with the shell 13. If this concrete block 10 is submerged on the riverbed or the seabed, it can be used as an artificial reef.

The sand and gravel in the concrete 12
The mixing ratio of the common aggregate such as crushed stone and the shell 13 may be appropriately selected according to the strength, and only the shell 13 may be used as the aggregate if the strength as the fishing reef is satisfied. The aggregate to be mixed is not limited to shells, but may be crushed pieces of pottery, porcelain, ceramic, concrete, or asphalt, and the crushed pieces may not necessarily have the same particle size. Furthermore, the shape of the concrete block 10 is
The present invention is not limited to the first embodiment. For example,
It may be formed in a columnar shape and used as a block for a vehicle stop, or may be used as a block standing up at a place where entry into a vehicle or the like is prohibited. The surface decoration by the shell increases the design effect.

According to the first embodiment, the following effects can be obtained. (1) Since the discarded shell 13 can be used as aggregate, the cost of the concrete block 10 can be reduced and resources can be reused. (2) Since the surface of the artificial reef is decorated with shells 13, it can be adapted to the natural scenery, and is also suitable for the habitat of fish and shellfish. (3) Since the consumption of shells increases, the problem of the place of production can be solved at the same time.

FIG. 3 shows a second embodiment according to the second aspect, which is applied to a concrete block 20 having a cavity filed by the applicant in Japanese Patent Application No. 9-43498. The difference from the first embodiment is that the concrete block 20 has a cavity 21 formed therein. A large number of shells 13 are accommodated in the hollow portion 21.

According to the second embodiment, in addition to the effects of the first embodiment, the inside of the cavity 21 provides a habitat for small animals, and water flows through the side of the concrete block 20 to pass through the inside of the cavity 21. Since the water is circulated, suspended matter or filth is removed while passing between the stacked shells 13, so that the water is purified.

[0013]

According to the present invention, concrete containing at least one of shells or crushed pieces of pottery, porcelain, ceramic, concrete, or asphalt as an aggregate is cast on a surface.
Since the surface was washed out to expose shells and other aggregates, the cost of concrete blocks could be reduced, and the consumption of shells could be increased , adapting to the natural scenery and the habitat of fish and shellfish.
In which an effect that Ru obtained suitable for boundary. Also,
If a hollow portion is provided in the concrete block and a large number of shells are accommodated in the hollow portion, the effect of increasing the water purification action is exhibited.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment.

FIG. 2 is a plan view.

FIG. 3 is a longitudinal sectional front view of a second embodiment.

[Description of Signs] 10 Concrete block 12 Concrete 13 Seashell 20 Concrete block

Claims (2)

[Claims] (1) at least a shell or pottery as an aggregate;
A concrete block formed by casting concrete containing one of crushed pieces of porcelain, ceramic, concrete, and asphalt. 2. The concrete block according to claim 1, wherein the concrete block is provided with a cavity, and the cavity contains a large number of shells.