KR20080061812A - Environmentally favorable revetment block including effective micro-organism - Google Patents

Abstract

An environmentally friendly revetment block containing porous concrete and active microorganism liquid is provided to ensure excellent function of purifying water and excellent strength and durability and to play a role of providing moisture and nutrients. An environmentally friendly revetment block comprises: a substrate frame of porous concrete material formed with one or more opened spaces inside; and a plurality of surface units of concrete mortar material protrusively formed on the upper surface of the substrate frame at regular intervals. The porous concrete material contains 10 to 20% by weight of absorbing material. The concrete mortar contains cement and fine aggregate in a weight ratio of 1:4. The porous concrete material and concrete mortar contain 0.01 to 1% by weight of active microorganism liquid, based on the total weight of water.

Description

Environmentally friendly revetment block including effective micro-organism}

1 is a perspective view of a four-sided revetment block according to an embodiment of the present invention

Figure 2 is a perspective view of the underwater revetment block according to an embodiment of the present invention

FIG. 3 is a schematic flowchart for manufacturing a sloped revetment block of FIG. 1 according to a manufacturing method of the present invention. FIG.

4 is a SEM image of the surface of ordinary concrete

5 is a SEM image of the surface of the underwater revetment block shown in FIG.

<Explanation of symbols for the main parts of the drawings>

10: Slope revetment block 11: Surface unit

12: substrate frame 13: fastening ring

20: underwater revetment block 21: block unit

22: fastening ring 23: inner space

The present invention relates to a revetment block and a method of manufacturing the revetment block, more specifically, the surface having a structure to maximize the specific surface area, to delay the flow of water, and to purify the water quality by maximizing the number of effective microorganisms inhabit The present invention relates to a water and underwater revetment block and a method of manufacturing the same.

In general, the waterside part of the river, in particular, the two-sided slope of the river is generally composed of concrete retaining wall or concrete revetment block for the purpose of dimensioning. However, as the ecological environment of fish, algae, and even microorganisms is important not only in recent years, research findings suggest that it is desirable to create hydrophilic spaces using porous vegetation blocks in addition to concrete retaining walls or blocks. Therefore, the application of the revetment block formed with a space for aquatic plants and the revetment block made of porous concrete is expanding.

As a result of relevant academic research on these lanyard blocks, the following are known.

First of all, "Corporate Concrete Block Development and Applicability Test for Environment-Friendly Maintenance of Rivers and Waterways, Ph.D. Thesis, Dankook University, 2005" shows that porous concrete blocks are aquatic plant growth, fish and algae habitat, and pollutants. It is suggested that it be an important basic material for the creation of ecological space by filtration function. "A study on the development of natural purification process for water quality improvement of Lee Hye-mi, Oh Jong-min and small rivers, Journal of Environmental Research, Kyung Hee University, Vol.10, pp. 25-30, 2001 "suggested water purification methods using plants and porous concrete, but the increase of organic matter due to the carcasses of plants is pointed out as a problem.

In addition, "Yu Ji-hyung, Dong-hyuk Suh, Jae-Sik Kim, Dae-Sung Kim, Dae-Sung Kim, Research on eco-friendly vegetation protection block using wet stirring hardened soil, Korean Society of Civil Engineers Conference, pp.2551-2554, 2006, uses soil as the main raw material, After using the hardener and cement as a binder to prepare a lake block, the water purification function was tested in the field. As a result of the experiment, it was announced that the water purification ability is better than the conventional concrete revetment block, but it has the disadvantage that the strength and durability are significantly lowered by using soil as the main material. That is, since soil is used, it seems to be advantageous for attachment of effective microorganisms, but there is a problem in strength and long-term durability.

On the other hand, looking at the conventional patent technology for the raft block, domestic patent application No. 10-2002-0056905 is for a raft base block having a water purification function, to manufacture a raft block using a functional medium for the purpose of water purification It has been proposed a method, but there is a problem that the specific characteristics of the medium is not presented.

Korean Utility Model Registration No. 20-0386395 is for Zeolite Hoan Block, which is simply manufactured by using zeolite mineral, and Korean Utility Model Registration No. 20-0381407 contains waste and microorganisms and is environmentally friendly. The present invention relates to a vegetation lakeside block having a water content of yeast fermentation solution and wood vinegar solution, and to reduce the pH of the concrete block and recycle the waste to manufacture the lakeside block technology, but there is a problem that there is a limit to the production of uniform quality products It exists.

In addition, Korean Patent No. 10-0371440 relates to a slope stabilized porous block, and the result of preparing the lake block using loess is that the pH is close to neutral, suggesting a lake block of advantage for vegetation, but has a low strength. .

The present inventors have studied to overcome the shortcomings of the above-described prior art revetment block, and found that the use of porous concrete and effective microbial stock solution can produce an eco-friendly revetment block effective for water purification while having high strength and durability. The present invention has been completed.

Accordingly, it is an object of the present invention to provide a lake block and a method for producing the same, which have a high specific surface area, high adhesion efficiency of effective microorganisms, and effective water microorganisms. .

Another object of the present invention is to provide a relief block having a structure capable of retarding the flow of water as well as a structure capable of forming various habitat conditions of aquatic organisms and a method of manufacturing the same.

It is still another object of the present invention to provide an anti-foam block which is not only high in strength and durability but also simple in production and economically inexpensive.

In order to achieve the above object of the present invention, the present invention is a substrate frame made of porous concrete material is formed at least one open space therein; And a plurality of surface layer units made of concrete mortar material protruding at a predetermined interval on the base frame.

Porous concrete composition to form the base frame is characterized in that it further comprises 10 to 20% by weight of the absorbent material of the cement weight used in the concrete composition.

The concrete mortar forming the surface layer unit is characterized in that it comprises cement and fine aggregates in a weight ratio of 1: 4.

The porous concrete composition and the concrete mortar to form the base frame and the surface layer unit is characterized in that it further comprises an effective microbial solution of an amount corresponding to 0.01 to 1% by weight of the total weight of water.

The base frame and the surface layer unit are formed by spraying an effective microbial diluent having a content corresponding to 0.01 to 1% by weight of the total weight of water contained in the porous concrete composition and the concrete mortar and an effective microbial diluent diluted with water. It further comprises an effective microbial layer.

The effective microbial stock solution is characterized in that it comprises 1-10% by weight of at least one species spawn culture selected from the group of microbial species effective for water purification, including lactic acid bacteria, yeasts, photosynthetic fungi.

The present invention is also formed by connecting a plurality of polyhedral block units made of a porous concrete material to form an open inner space, the polyhedral block unit is the bottom of the flat, the top of the streamlined, the center of the Provides an underwater revetment block characterized in that a through hole penetrating from the top to the bottom.

It is characterized in that it further comprises an effective microbial solution of an amount corresponding to 0.01 to 1% by weight of the total weight of water contained in the porous concrete composition forming the plurality of polyhedral block units.

The plurality of polyhedral block units are effective microorganisms formed by spraying an effective microbial diluent having an amount corresponding to 0.01 to 1% by weight of the total weight of water contained in the porous concrete composition and an effective microbial diluent diluted with water. It further comprises a layer.

The effective microbial stock solution is characterized in that it comprises 1-10% by weight of at least one species spawn culture selected from the group of microbial species effective for water purification, including lactic acid bacteria, yeasts, photosynthetic fungi.

In addition, the present invention is a method for producing any one of the four-sided revetment block, the step of forming a base frame by applying a strong compressive force and vibration after pouring the porous concrete; Placing concrete mortar on the formed base frame and then applying a strong compressive force and vibration to form a plurality of surface layer units; And it provides a method of manufacturing a sloped revetment block comprising the step of curing the formed base frame and the surface layer unit.

The porous concrete and the concrete mortar is characterized in that it further comprises an effective microbial solution of an amount corresponding to 0.01 to 1% by weight of the total weight of water.

Spraying the surface of the cured base frame and surface layer unit with the effective microbial stock solution and the effective microbial diluent diluted with water in an amount corresponding to 0.01 to 1% by weight of the total weight of water contained in the porous concrete and the concrete mortar. It further comprises.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a perspective view of a four-sided revetment block according to a preferred embodiment of the present invention, Figure 2 is a perspective view of an underwater revetment block according to a preferred embodiment of the present invention, Figure 3 is according to the manufacturing method of the present invention 1 is a schematic flowchart for manufacturing a sloped revetment block of FIG. 1.

As shown in FIG. 1, the slope revetment block 10 according to the present invention includes a base frame 12 and a surface layer unit 11 formed on the base frame. In this case, in some cases, when the slope revetment block 10 is installed on the slopes of both rivers, a plurality of fastening rings 13 may be formed to facilitate the connection of the slope revetment block 10.

First, as long as the base frame 12 is a structure in which one or more open spaces are formed therein, the base frame 12 is preferably a lattice frame shape in which a plurality of spaces are formed.

In addition, the base frame 12 is formed of porous concrete, and when the base frame 12 is formed of porous concrete, it is preferable that the base frame 12 is manufactured to have strong durability by applying a particularly strong compressive force and vibration.

The porous concrete composition for forming the base frame 12 may be cement, water, coarse aggregate, sand, AE reducing agent as the mixing ratio of the conventional porous concrete composition, but preferably used for forming the porous concrete composition of the adsorption material It is to contain 10 to 20% by weight of the cement weight. Here, the adsorption material is to increase the adsorption efficiency of effective microorganisms and contaminants in water, and various kinds of known adsorption materials including red mud, activated carbon, and zeolite may be used. In particular, the red mud is a mineral having a natural red color and has a high specific surface area, which is suitable for the adsorption material of the present invention.

In addition, it is preferable to reduce the content of fine aggregate by using the industrial by-product stone powder 30 to 40% by weight of the weight of the cement used in forming the porous concrete composition.

Since the base frame 12 is formed of a porous concrete composition as described above, it has a porous structure of a complicated shape continuous up to the inside thereof to form a wide specific surface area and various formatting conditions, and the base frame 12 formed of porous concrete Aerobic microorganisms are attached to the surface of) and anaerobic microorganisms are formed inside, so that the habitat space of various biogroups is formed, showing high organic matter treatment efficiency, thereby improving water purification.

Next, a plurality of surface layer units 11 are formed to protrude at a predetermined interval on the base frame 12, the shape of the surface layer unit 11 is projected to the upper base frame 12, the slope revetment block 10 for Although this is not limited as long as it forms the uneven structure as a whole, it is preferable that the shape is such that the flow of water can be delayed.

The concrete mortar forming the surface layer unit 11 is used by mixing water, cement, fine aggregate, and preferably includes the cement and fine aggregate to be used in a weight ratio of 1: 4. Since the surface layer unit 11 is exposed to the external environment, it is directly affected by external force. Therefore, by forming a high-strength concrete mortar so as to have high wear resistance to serve to structurally protect the porous concrete base frame 12 below.

The sloped revetment block 10 composed of the base frame 12 and the surface layer unit 11 is formed by including a certain amount of effective microorganisms in the porous concrete composition and concrete mortar used to form the revetment block 10.

That is, the porous concrete composition and the concrete mortar forming the base frame 12 and the surface layer unit 11 further comprises an effective microbial stock solution of an amount corresponding to 0.01 to 1% by weight of the total water included Dragon block 10 is a state in which there are a large number of effective microorganisms therein. The effective micro-organism (EM) stock solution can be used in a variety of commercial products, in particular the effective microbial stock solution is one or more types selected from the group of microbial species effective for water purification, including lactic acid bacteria, yeasts, photosynthetic fungi. Since 1-10% by weight of the spawn culture, the remaining amount, that is, 90 to 99% by weight is purified water, but in some cases fermentation aids may be included within 15% by weight.

In addition, the effective microbial dilution solution diluted with the above-described effective microbial stock solution and water is sprayed on the surface of the sloped ophthalmic block 10 for curing to further form an effective microbial layer. Since the effective microbial layer can lower the high pH of the surface of the sloped ophthalmic block 10, the habitat of the waterside organism can be more advantageous.

At this time, the effective microbial stock solution is 0.01 to 1% by weight of the total weight of the water contained in the porous concrete composition and the concrete mortar forming the base frame 12 and the surface layer unit 11 of the slope revetment block 10 The dilution ratio of water is 500 to 1500 times by weight, preferably 1000 times.

Therefore, the slope revetment block 10 of the present invention has a protrusion, that is, a surface layer unit 11 on the top of the block, that is, the base frame 12, in order to expect the basic dimensional function of suppressing the loss of the embankment in the waterside part of the river. It is designed to buffer the rapid flow of running water flowing through the slope by forming a plurality of vegetation, and is also vegetated through an open space formed inside the base frame 12, which is recessed for the preservation of ecology. Weeds and butes were protected, and the roots of the settled plants led to enhanced block stability.

Referring to Figure 2 showing a perspective view of the underwater revetment block according to an embodiment of the present invention, the underwater revetment block 20 of the present invention is made of porous concrete material to form an open inner space (23) It can be seen that a plurality of polyhedral block units 21 are connected and formed. In this case, in some cases, a plurality of fastening rings 22 may be formed to facilitate the connection of the underwater revetment block 20 when the underwater revetment block 20 is installed at the bottom of the river.

The shape of the underwater revetment block 20 is not limited as long as it is a structure in which an open inner space 23 surrounded by the polyhedral block unit 21 is formed, but preferably a plurality of underwater revetment blocks 20 are streamed. When installed on the floor, the overall shape is preferably square in order to facilitate its installation.

The polyhedral block unit 21 forming the underwater revetment block 20 has the same size and shape, the lower portion is in contact with the bottom of the river is flat, the upper portion is in contact with the river is installed in a streamlined state It is preferable that the upper surface to which the polyhedral block unit 21 is connected has a concave-convex structure so that the flow of water is delayed. In addition, the polyhedral block unit 21 is preferably formed with a through hole penetrating the center from the top to the bottom.

Accordingly, the polyhedral block unit 21 is not limited in its overall shape, but as shown in FIG. 2, the lower half of the polyhedral block unit 21 has a prismatic shape, and the upper half of the polyhedral block unit 21 has a pyramidal shape. The polyhedral block unit 21 configured as described above is completed by connecting the inner space 23 to a desired shape.

 The polyhedral block unit 21 is formed of a porous concrete composition, the porous concrete composition is cement, water, coarse aggregate, sand, AE reducing agent may be used as the mixing ratio of the conventional porous concrete composition, but preferably the adsorption material It is to include 10 to 20% by weight of the weight of the cement used when forming the porous concrete composition. Here, the adsorption material is to increase the adsorption efficiency of effective microorganisms and contaminants in water, and various kinds of known adsorption materials including red mud, activated carbon, and zeolite may be used. In particular, the red mud is a mineral having a natural red color and has a high specific surface area, which is suitable for the adsorption material of the present invention.

In this case as well, the above-mentioned sloped revetment block 10 is formed by including a certain amount of the effective microbial stock solution in the concrete mortar, and sprays the effective microbial diluent on the surface of the cured underwater revetment block 20. Since the same as in the four-sided revetment block 10 will be omitted.

FIG. 3 is a schematic flowchart for manufacturing a sloped revetment block of FIG. 1 according to a manufacturing method of the present invention. FIG.

Referring to FIG. 3, after preparing the base frame and the surface layer unit, cement, water, coarse aggregate, sand, stone powder, adsorption material, effective microorganism, and AE water reducing agent are prepared. By vibrating and pressing to produce a base frame, and again, the concrete mortar weighed and mixed is placed on the base frame secondly to vibrate and press to produce a surface unit. After curing the formed base frame and surface layer unit it can be seen that by spraying the effective microbial diluent to produce a finished surface revetment block.

On the other hand, in the case of the underwater revetment block is the same as the manufacturing process of the slope revetment block except for further forming the surface layer unit through the secondary casting.

As described above, the production of the slope revetment block is divided into base layer and surface layer and manufactured by two-touch method. The base frame is composed of coarse aggregate of single grain, sand, stone powder, cement, adsorption material, water, and AE water reducing agent, and surface layer. The unit mixes cement and fine aggregates in a ratio of 1 to 4 by weight, adds water to produce cement mortar, forms a surface layer, and applies strong compressive force and vibration during manufacturing. Will have

Therefore, the slope and underwater revetment block of the present invention prepared as described above exhibits a minimum compressive strength of 21 MPa or more, so the strength and durability of the porous concrete revetment block is very excellent.

Example

Manufacture of slope revetment blocks

1. Material Preparation

Prepare cement, water, coarse aggregate, sand, stone powder, absorbent material, effective microorganism, and AE water reducing agent. At this time, the cement used was ordinary portland cement produced by Ssangyong Yangyang Co., Ltd. Coarse aggregate was used as the crushed stone aggregate of the maximum size 20 mm as shown in Table 1. The unit bulk mass of the aggregate was determined to be 1.58 kg / L. The sand used as fine aggregates was made of Nakdong River, and the granite was made of granite crushed stone. Red mud was used as the adsorption material.

Effective microbial stock is composed of 87% purified water, fermentation aid 8%, spawn compound 5% as shown in Table 2. At this time, the seed mixture was used by mixing the lactic acid bacteria, yeasts, photosynthetic bacteria as shown in the density of Table 2 below.

Effective Microbial Composition and Density  Effective Microbial (EM) Stock Components Lactobacillus acidophilus 1.9 × 10 ⁷ cfu / g Yeast 4.3 × 10 ² cfu / g Photosynthetic bacteria 4.8 × 10 ² cfu / g Purified Water 87% Fermentation Aid 8% Spawn Mixture 5%

The effective microbial diluent was used by diluting the effective microbial stock with water 1000 times by weight.

2. Formation of Base Frame

The base layer frames per unit volume (m ³⁾ coarse aggregate 1,580 kg, 197 kg of sand, stone dust 138 kg, cement 375 kg, 56 kg adsorbent, AE water reducing agent 1.88 kg, 113 kg of water and the effective microbe stock solution 0.113kg (0.1 parts by weight of water The porous concrete composition blended with the composition by weight (% by weight) is poured into a desired design, for example, a grid, and then formed by applying a strong compressive force and vibration.

3. Formation of surface layer unit

After mixing a plurality of surface layer units with cement and fine aggregates 1: 4 at the desired interval on the base frame, and pouring concrete and mortar formed by adding 0.1% by weight of an effective microbial solution of the weight of the injected water, a strong compressive force Excessive vibration is applied to form the surface layer unit.

4. Curing

The slope revetment block consisting of the base frame and the surface layer unit is transported to the curing room for about 20 hours of steam curing to complete the slope revetment block.

5. Effective microbial dilution

The effective microdiluent prepared by spraying the prepared slope revetment block was completed to reduce the high pH of the surface and to increase the habitat of plants.

In the above embodiment, only the manufacturing example of the sloped revetment block was described, but the method of manufacturing the underwater revetment block of the present invention is also performed in the remaining steps except for forming the surface layer unit with the concrete mortar on the base frame of the sloped revetment block. It will be included as it is, detailed description thereof will be omitted.

Experimental Example

Water Purification Test of Underwater Revetment Block

Underwater revetment block prepared using the remaining steps except forming surface layer unit with concrete mortar in the size of 30 cm × 30 cm × 30 cm in height, adsorption material and effective microbial solution After preparing each of the control spheres formed of the conventional porous concrete composition is not included, it was judged as the result of water quality analysis by collecting the river water before the river water is passed through the test block.

First, the water quality survey items and analyzers are shown in Table 3.

Analyzer and method for each water quality survey item Analysis item Analyzer Analysis method Water temperature (℃) thermometer Field measurement Hydrogen ion concentration (pH) pH meter  Field measurement Dissolved Oxygen (DO) DO meter Diaphragm measurement Biochemical Oxygen Demand (BOD) BOD Incubater Winkler-Sodium azide variant Chemical oxygen demand (COD) TOC meter Potassium Permanganate Method Suspended solids (SS) Glass Filter Apparatus Weight difference before and after drying at 105 ℃ after passing through glass fiber filter paper Total Nitrogen (T-N) HP Vectra 286/12 Absorbance method Total Person (T-P) HP Vectra 286/12 Absorbance method

The experiment was repeated several times, and the average of the effective test results was obtained as shown in Table 4.

Water Purification Test Results of Samples Sample Name TSS (mg / L) T-N T-P Remarks River water 24 4.453 0.067 Before passing The present invention 18 4.441 0.059 After passing Control 22 4.443 0.066 After passing

In the experimental measurement, the water temperature was 14.5 ° C, pH was 8.35, DO was 8 ± 1 mg / L, COD was 35 ± 2 mg / L, and BOD was 10 ± 1 mg / L. However, as shown in Table 4 above, the underwater revetment block according to the present invention showed 25% reduction efficiency of TSS (Total Floating Substances) after river water passed the specimen, and 11% reduction of T-P (total phosphorus). In contrast, the control showed a reduction of 8%.

Therefore, it is clear that the underwater revetment block according to the present invention has high adsorption power of suspended solids and excellent ability to decompose organic matter of effective microorganisms, and thus has excellent water purification function.

FIG. 4 is a SEM image of the surface of ordinary concrete, and FIG. 5 is a SEM image of the surface of the underwater revetment block shown in FIG. 2.

4 and 5 are photographed by scanning electron microscopy (SEM) of the surface texture of a conventional concrete block made of porous concrete and an underwater revetment block made of a porous concrete containing the adsorbent material of the present invention. Shown.

4 and 5, it can be seen that the surface structure of the porous concrete according to the present invention formed a much finer porous structure than the conventional porous concrete. Therefore, it can be seen that the fine porous structure on the surface and the inside of the concrete is increased by mixing the adsorption material such as red mud.

As such, the effective microorganisms in the water are well adsorbed on the surface of the well-developed porous tissues such as the eosinophil block of the present invention, and therefore, it is considered to be advantageous for growth after the adsorption block of the present invention. It is anticipated that this will be improved further.

 In addition, the preferred embodiments of the present invention are not limited to the specific embodiments described above because it is disclosed for the purpose of illustration, without departing from the gist of the present invention claimed in the claims, the common knowledge in the technical field to which the invention belongs. Of course, any person having a variety of modifications can be made, and such changes are within the scope of the claims.

The present invention as described above has the following remarkable effects. First of all, the revetment block according to the present invention not only has excellent water purification function, but also functions to store water with high specific surface area and voids, and at the same time, roots of plants are fixed, thus serving as a water tank to provide water and nutrients.

In addition, since the roots of the plant is settled between the revetment block according to the present invention to firmly fix the ground to prevent the river bank from being chipped off by the water current to form a very stable cross section for the purpose of dimensional purposes.

In addition, since the revetment block according to the present invention is manufactured by applying strong vibration and compressive force, it exhibits a minimum compressive strength of 21 MPa or more, which is excellent in strength and durability.

In addition, the lake block according to the present invention may exhibit a natural beautiful ocher color when using the red mud as the adsorption material.

In addition, the rake block according to the present invention is to prevent the dam damage caused by the flow rate by slowing the flow of the increased flow rate of a large amount of river influent that occurs during the heavy rain that protrudes uneven structure causes river collapse and flooding The effect is to reduce flood damage.

In addition, the environmental effect of the revetment block of the present invention is to recycle the industrial by-products stone powder and red mud, so there is a resource saving effect, when the revetment block of the present invention is installed on the slope or bottom of the river, high specific surface area Through this, it is possible to form an environment-friendly river that can form enough space for the microorganisms to live in, and to cope with aquatic plants, fish, and algae while simultaneously serving as a pulp. In particular, it can serve as a habitat for small organisms such as amphibians and connect river ecosystems with terrestrial ecosystems.

Claims (13)

A base frame made of porous concrete material having one or more open spaces formed therein; And Slope relief block characterized in that it comprises a plurality of surface layer unit made of a concrete mortar material protruding at a predetermined interval on the base frame. According to claim 1, wherein the porous concrete composition to form the base frame is a slope revetment block characterized in that it further comprises an adsorbent material of 10 to 20% by weight of the weight of the cement used in the concrete composition. According to claim 1, wherein the concrete mortar to form the surface unit is a slope revetment block characterized in that it comprises cement and fine aggregates in a weight ratio of 1: 4. The method of claim 1, wherein the porous concrete composition and the concrete mortar forming the base frame and the surface layer unit further comprises an effective microbial solution of an amount corresponding to 0.01 to 1% by weight of the total water containing Four-sided revetment block. According to claim 1, wherein the base frame and the surface layer unit is an effective microbial diluent having a dilution of the effective microbial solution and water diluted to 0.01 to 1% by weight of the total water contained in the porous concrete composition and concrete mortar Slope relief block for the slope further comprises an effective microbial layer formed on the surface. The method of claim 4 or 5, wherein the effective microbial stock solution contains 1-10% by weight of one or more kinds of seed cultures selected from the group of microbial species effective for water purification, including lactic acid bacteria, yeasts, and photosynthetic fungi. Slope revetment block characterized in that. A plurality of polyhedral block units made of porous concrete material are connected to each other to form an open inner space. The polyhedral block units have a flat bottom portion, a streamline top portion, and a central portion thereof from the top portion to the bottom portion. Underwater revetment block, characterized in that the through-hole is formed through. According to claim 7, Underwater revetment further comprises an effective microbial solution of an amount corresponding to 0.01 to 1% by weight of the total weight of the water contained in the porous concrete composition forming a plurality of polyhedral block units block. The method of claim 7, wherein the plurality of polyhedral block unit is effective microbial diluent having a content of 0.01 to 1% by weight of the total weight of water contained in the porous concrete composition and the effective microbial diluent diluted with water Underwater revetment block further comprises an effective microbial water layer formed by spraying. 10. The method according to claim 8 or 9, wherein the effective microbial stock solution comprises 1-10% by weight of one or more kinds of seed cultures selected from the group of microbial species effective for purifying water, including lactic acid bacteria, yeasts, and photosynthetic fungi. Underwater revetment block, characterized in that. In the method for producing a sloped ophthalmic block according to any one of claims 1 to 4,  After pouring porous concrete, applying a strong compressive force and vibration to form a base frame; Placing concrete mortar on the formed base frame and then applying a strong compressive force and vibration to form a plurality of surface layer units; And The method of claim 4, characterized in that it comprises the step of curing the formed base frame and the surface layer unit. 12. The method of claim 11, wherein the porous concrete and the concrete mortar further comprises an effective microbial stock solution of an amount corresponding to 0.01 to 1% by weight of the total weight of water. The base frame and the surface layer unit of claim 11, wherein the effective microbial stock solution having an amount corresponding to 0.01 to 1% by weight of the total weight of water contained in the porous concrete and the concrete mortar and the effective microbial diluent diluted with water are cured. Method of producing a slope revetment block further comprising the step of spraying on the surface of the.

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