JP2006101849A - Block seaweed-propagating bed for porous-concrete seaweed-attaching bed, and fish bank bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block for a seaweed-attaching bed obtained by improving water-absorptivity, compression strength and seaweed-propagating functions of a porous concrete lump, hardly causing plugging and having improved air-permeability; and to provide a seaweed-propagating bed and a fish bank bed constituted by using the block. <P>SOLUTION: The block 1 for the seaweed-propagating bed is constituted by mixing a porous concrete lump formed by kneading a cement powder with an aggregate constituted of a pulverized product 2 of a porous roofing tile, with a fiber material 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a block for algae landing using a porous concrete block, an algae breeding bed, and a fishing reef bed.

Conventionally, fish reefs and algae breeding beds using porous concrete are known, but in such things, the compressive strength is 10 N value or more using natural stone crushed by adjusting the particle size as an aggregate in cement powder. The porosity is about 25% or more.
However, since such a porous concrete block uses natural stone as an aggregate, its water absorption is low, and a number of gaps are generated in the concrete block, so that the compressive strength is also lower than that of ordinary concrete. In addition, when crustaceans and polychaetes proliferate in the voids of the porous concrete block, there are problems such as clogging caused by secondary adhering organisms and a decrease in the proliferation function.
In addition, although conventional masonry breeding reefs using natural stones are also known, the effect can be expected in the initial stage, but if attached organisms adhere to the surface of the masonry, the inside of the masonry breeding reef is clogged. There is a drawback that the growth effect is reduced by half.
Japanese Patent Application Laid-Open No. 2004-166655 discloses and proposes an artificial fishing reef block in which a shell shell concrete concrete molded body is provided in an outer peripheral portion of a normal concrete body and an artificial fishing reef. (See Patent Document 1)

However, in this artificial reef block and artificial reef, the shell porous concrete is weak in strength, and since the algae does not adhere to the ordinary concrete body of the outer periphery, the effect as an algae growth bed will be halved. There was a problem.
In Japanese Patent Laid-Open No. 7-216847, a porous flat plate block made of porous concrete is fixed in a required arrangement in a recess between opposing plate parts of a main body block formed from an integrally molded product of concrete. The inclined state is inclined with respect to the water flow direction in the recess, the parallel state along the water flow direction, the orthogonal state orthogonal to the water flow direction, and the flat surface on the inner surface of the recess. A fish nest block including an inner surface abutting state where the abutment abuts, and a water channel structure using the same are disclosed and proposed. (See Patent Document 2).

However, in such a thing, since the block piece is formed of porous concrete, it is fragile and is not intended for growth of algae or the like. And when using these porous concretes, when they were submerged in the sea, they were easily clogged when the attached organisms proliferated, and they were raised from the sea because they were brittle and poor in water absorption. At times, there were drawbacks such as drying and easy disintegration.
JP 2004-166655 A JP 7-216847 A

  The present invention has been made in view of the above-described conventional problems, and improves the water absorption, compressive strength, algae growth function of porous concrete blocks, and prevents clogging. It aims at providing the used algae breeding bed and fishing reef bed.

This invention is provided in order to solve the said subject, and all are proposing the algae implantation block in Claims 1-5.
Here, the invention according to claim 1 is characterized in that, in a porous concrete block formed by kneading the aggregate with cement powder, the aggregate is composed of a tile crushing material and mixed with a fiber material. Yes.
Moreover, in claim 2, in the porous concrete lump formed by kneading the aggregate with the cement powder, the tile crushing material and the fiber material are mixed. In this, in addition to the aggregate such as natural stone, In addition, it contains appropriate amounts of tile breaker and fiber material.

  The invention according to claim 3 is the invention according to claim 1, wherein as the tile crushing material, a shattered material of smoldering tile is adjusted to a predetermined particle size, and an admixture serving as an algae nutrient is mixed.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the fiber material is a net-like body.

  The invention according to claim 5 is the structure according to any one of claims 1 to 3, wherein the surface of the formed block is polished to remove the cement film formed on the surface.

In claims 6 and 7, an algae growth bed and a fish reef bed using the algae landing block according to claims 1 to 5 are proposed.
That is, the algae growth bed according to claim 6 forms the algae implantation block according to any one of claims 1 to 5 in a flat plate shape, and these algae implantation blocks are formed on the surface of the base. The structure is mounted in an exposed state.

  The fish reef according to claim 7 is formed by forming the algae landing block according to any one of claims 1 to 6 into a sphere provided with flat portions at both ends and accommodating the same in a mold. is there.

According to invention of Claim 1, 2, since the aggregate is comprised with the tile crushing material, it becomes a rough surface, the crushing shape is also uneven | corrugated, and a surface area becomes large. In addition, it is lightweight compared to natural stone crushed stone, and since numerous countless blister traces and air hole traces formed when burning clay clay are formed, it is porous and has high water absorption, Clogging is less likely to occur.
In addition, as a debris crushing material, a smoldering tile, an unglazed roof tile, etc. can be used, and especially the thing using a smoldering tile forms a hard carbon film on the surface, and also has a water quality purification effect.
In addition, the fiber material can be used as a binder for the aggregate to improve the brittleness of the porous concrete mass. If the fiber material is protruded from the surface as cilia, the cilia protruding from the surface prevents slipping off. Therefore, the surface growth rate of algae spores is higher than that of natural lithotripsy, and can promote early growth.
The fiber material is preferably about 7 to 20 mm when the fiber is separated, and the cilia protrudes from the surface of the porous concrete lump, regardless of whether it is a regular or irregular shape such as a knitted net or fragments thereof. By doing so, the rate of algae growth is good and the algae growth can be promoted.
In addition, if such porous concrete lumps are mixed with admixtures such as shell powder, iron powder, ore, and converter slag, these will release the nutrients necessary for seaweed, so the algae growth effect Can be further improved.
Note that the fiber material does not need to be densely formed on the surface, and does not need to protrude long from the surface.
It is sufficient to prevent the algal spores from sliding off.

According to the invention described in claim 3, as the debris crushing material, the smoldering tile is adjusted to a predetermined particle size, and an admixture that is a nutrient for algae is mixed therein. In the study by the present inventors, the crushed material is preferably about 10 to 20 mm in diameter considering the algae growth effect and the ease of production, but is not limited thereto. When a piece of smoldering tile is used as the tile crushing material, the carbon film formed on the surface is dense and excellent in strength, and the surface carbon film also has a water purification effect.
In addition, since admixtures that serve as nutrients for algae, such as shellfish powder, iron powder, ore, and converter slag, are mixed in the sea as nutrients for algae, which is extremely useful for the growth of algae.

According to invention of Claim 4, since a fiber material is a net-like body, it becomes a connecting material of an aggregate and can reinforce a porous concrete lump. In such a thing, since the fiber material of the net-like body is hardened and cemented with cement in a state of covering the crushed tile without covering the blister traces and air hole traces formed on the surface of the crushed tile, more Vulnerability is improved. In this case, it is desirable that the cilia protrude from the surface of the porous concrete block, thereby improving the algae growth rate and promoting the algae growth.

According to the invention described in claim 5, since the surface is polished, the cement film is removed, and the porous surface of the crushed tile is exposed, the water absorption is further improved and the algae is further formed. It's easy to do.
In this case as well, it is desirable to project cilia from the surface of the lump, thereby improving the rate of algae growth and promoting algae growth.
According to the sixth aspect of the present invention, an algae growth bed having an excellent proliferation effect can be obtained using a flat algae landing block. The base of the breeding floor may be a concrete base or a wave-dissipating formwork.
According to the invention described in claim 7, since the algae implantation block is formed in a sphere, when a plurality of the spheres are stacked, a large number of gaps are formed between the spheres and the water permeability is increased. Excellent.
Moreover, since the flat part is provided in the both ends of the spherical body, when a spherical body is aligned and piled up, stabilization is good and there exists an advantage excellent as a fishing reef.

  Hereinafter, embodiments of an algae landing block, an algae breeding bed, and a fishing reef bed according to the present invention will be described with reference to the drawings.

FIG. 1 shows an example of an algae landing block according to the present invention, a perspective view showing a state in which a plurality of algae implantation blocks are arranged, and FIG. 2 is a longitudinal sectional structural view of the algae implantation block of FIG. is there.
As shown in FIGS. 1 and 2, the algae landing block 1 is formed into a porous concrete block in which aggregate is mixed with cement powder, and the aggregate is composed of a tile crushing material 2, shell powder, The admixture 3 such as iron powder, ore and converter slag and the fiber material 4 are mixed to harden the cement powder to form a flat plate as a whole.
As the debris crushing material 2, Ibushi tile, unglazed tile, or the like is used.
Such crushed roof tiles 2 are porous, have high water absorption, and are not easily clogged because numerous counts of blisters and air holes are formed when tile clay is burned.
As the fiber material 4, a fiber element, a net-like sheet, a fragment thereof, or the like is used.
Such a fiber material 4 becomes a connecting material of the debris crushing material 2 which is an aggregate, and can reinforce a porous concrete block.
As shown in FIG. 2, the fiber material 4 desirably has the cilia 4 a protruding from the surface of the block 1. With such a material, algae can be easily attached, and there is an advantage that algae can be promoted.
FIG. 3 is a perspective view showing an example of the algae growth bed according to the present invention.
The algae breeding floor 5 shown in FIG. 3 has a plurality of algae landing blocks 1 laid on the surface of a flat concrete base 6. The plurality of algae landing blocks 1 are embedded and attached to the surface of the base 6 at the time of placing the concrete base 6, and at this time, the base 6 so that the algae landing block 1 functions sufficiently. It is exposed so that it protrudes from the surface.
According to this algae breeding bed, a large number of algae landing blocks 1 on a large concrete base 6 can be formed.

FIG. 4 is a perspective view showing another example of the algal growth bed.
The algae breeding floor 7 shown in FIG. 4 has the concrete bases 6A arranged in parallel while maintaining gaps, and the blocks 1 are fixed in these gaps to increase the water permeability in the vertical direction.
The water permeability can be increased by the gap between the concrete base 6A and the gap between the algae landing blocks 1, and the growth of algae can be increased.

FIG. 5 is a perspective view showing an example in which a fishing reef floor is constructed by attaching a plurality of blocks to an upper portion of a substantially trapezoidal concrete base.
The substantially trapezoidal concrete base 9 is provided with a plurality of openings 9a on the side surface, the lower part is divergent, and does not fall down even when subjected to external forces such as waves on the sea floor, and has a stable shape I am doing.
The upper part of the concrete base 9 is firmly attached to the top (not shown) of a plurality of flat-plate algae landing blocks 1 with bolts and nuts.
The plurality of openings 9a of the concrete base 9 improve water permeability and serve as a passage for fish, forming a stable reef that is easy for fish to gather.

FIG. 6 is a perspective view showing a fishing reef bed constructed by assembling a plurality of blocks to a steel frame member formed in a substantially trapezoidal shape.
As shown in FIG. 6, the fishing reef floor 10 has a plurality of flat algae landing blocks 1 attached between a plurality of rows of steel frame members 11 having a substantially trapezoidal shape formed so as to spread downward. It has been.
The block 1 is protected in advance so as not to be broken by fixing both side ends with a steel angle member 2 and fixed to the frame member 11 by a method such as a bolt, a nut, or welding.
A gap 11a is formed between the steel frame members 11 and serves as a passage for fish, so that many fish can easily gather.

FIG. 7 is a perspective view showing another example of an algae implantation block.
As shown in FIG. 7, the algae landing block 12 is manufactured as a mold using a technique for manufacturing porous concrete.
The block 12 has the same configuration as described above, and is provided with irregularities on the polyhedral block body 13 and further provided with holes 14 on the top, bottom, left and right to improve water permeability.
In this algae landing block 12, the block main body 13 is provided with irregularities, so that the algae can be easily deposited and the holes 14 are provided, so that water permeability is good. In addition, a gap created between the blocks when aligned and stacked serves as a passage for fish and the like.
It is desirable to increase stability when the block 12 is submerged in the seabed or the like by mixing a material having a high specific gravity into the block 12.

FIG. 8 is a perspective view showing the algae implantation block configured as a spherical body.
As shown in FIG. 8, the algae landing block 15 is formed in a sphere having flat portions at both ends, so that it is stable even when stacked in an aligned state. A gap is formed, water permeability is good, and it is suitable for algae growth.

FIG. 9 shows a diagram in which the block shown in FIG. 8 is placed in a steel frame with a narrower lower side to constitute a fishing reef bed.
Since the fish reef floor 16 houses a plurality of spherical blocks 15 in a steel frame 17 whose bottom is narrowed, a large number of gaps can be formed to increase the algae growth effect, and the reef effect Can also be increased.

FIG. 10 is an explanatory view showing the basic procedure of the method for producing the algae implantation block.
In order to manufacture a block for algae landing, first, tiles such as smoldering tiles and unglazed tiles and blast furnace cement are mixed and stirred with a mixer (S1).
By stirring the roof tile, the roof tile crushing material is formed, and this roof tile breaking material becomes the aggregate.
Next, a fiber material or a fiber material made into a net-like sheet or a fragment is mixed into the surface of the mixer (S2). Next, admixtures such as iron powder and shellfish powder are mixed (S3). Next, the water in the mixer is increased by about 10% (S4). Next, a high performance AE water reducing agent is mixed (S5).
And it stirs again (S6). Next, it is placed by receiving it from the mixer to the hopper (S7). Finally, it is compacted from the upper surface of the porous concrete with a wall-mounted vibrator at the time of placing (S8). This completes the production of the alga implantation block (S9).

When the algae landing block is used as an algae growth bed, the algae landing blocks are arranged and fixed to the steel frame with bolts and nuts.
In addition, when the algae landing block is embedded in a fishing reef or algae growth bed, it is embedded in the surface when placing concrete on the reef or algae growth floor, but a part of it is exposed in a sufficiently protruding state. . When the main body is placed on the algal growth function, holes are made in the algae landing block, and both ends thereof are fixed with a concrete base to improve the upper and lower air permeability. When fixing the algae landing block to the reef formwork, fix it with bolts and nuts. Such a method is appropriately adopted.

The following shows the blending ratio (% volume) of each component in one embodiment of the present invention.
In this implementation product, only the tile crushing material is used as the aggregate. However, even if the aggregate is made of a conventional natural stone, the broken tile powder material and the fiber material are mixed. Good.

Tile crushing material 69.5%
Cement 15.5%
Admixture 0.45%
Iron powder 0.34%
Fiber material 0.01%
Water 14.20%

It is a perspective view which shows an example of the block for algae landing concerning this invention, and shows the state which arranged the block for algae implantation. It is a longitudinal cross-section structure figure of the block for algae landing of FIG. It is a perspective view which shows an example of the algal growth bed which concerns on this invention. It is a perspective view which shows the algal growth bed of another example. It is a perspective view which shows an example of the fishing reef bed which attached the several flat block for algae landing to the base. It is a perspective view which shows the fishing reef bed of the other example which attached the flat block for algae landing between the steel frame materials formed in the substantially trapezoid shape. It is a perspective view which shows the block (molding | casting body) for another example of algae landing. It is a perspective view which shows the state which piled up the multiple steps of the algae landing blocks made into the spherical body. It is a perspective view which shows the fishing reef floor of the other example which put the block for spherical algae landing in the steel frame. It is explanatory drawing which shows the basic procedure of the manufacturing method of the block for algae landing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Block for algae landing 2 Crushing material 3 Admixture 4 Fiber material 4a Cilia 5 Algae breeding floor 6 Concrete base 6A Concrete 7 Algae breeding floor 8 Reef bed 9 Concrete block 9a Opening part 10 Reef bed 11 Steel frame Material 12 Algae landing block 13 Polyhedron block body 14 Hole 15 Algae landing block 16 Fishing reef floor 17 Steel frame

Claims (7)

In a porous concrete block formed by mixing aggregate with cement powder,
An agglomeration block characterized in that the aggregate is made of a tile crushing material and a fiber material is mixed therein. In a porous concrete block formed by mixing aggregate with cement powder,
An algae landing block characterized by mixing a tile crushing material and a fiber material. In claim 1 or 2,
The tile crushing material is an algae landing block in which smashed pieces of smoldering tile are adjusted to a predetermined particle size and admixture that is a nutrient for algae is mixed. In any one of Claims 1-3,
The fiber material is a block for algae implantation that is a net-like body. In any one of Claims 1-4,
An algae implantation block in which the surface is polished to remove a cement film.   An algae growth bed in which the algae landing blocks according to any one of claims 1 to 5 are formed in a flat plate shape, and the algae implantation blocks are attached in a state of being exposed on the surface of the base.   The said algae landing block in any one of Claims 1-5 is a fishing reef floor which formed in the spherical body which provided the flat part in the both ends, and accommodated these several blocks in the formwork.

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