TW201600677A - Brick structure and manufacture method for the brick structure - Google Patents

Abstract

The invention is a brick structure, especially the structure of an ecological brick, available for planting in order to maintain the ecological, the brick structure includes a body structure, the body structure has a flow structure, the flow structure forms a plurality of holes or channels on the surfaces of the body structure, so that plants can be grown form the plurality of holes or channels.

Description

Brick structure product and manufacturing method thereof

The invention belongs to a brick type structural product and a manufacturing method thereof, in particular to an ecological brick product and a manufacturing method thereof.

The effect of global warming caused by the greenhouse effect is becoming more and more serious. The Carbon Dioxide Information Analysis Center (CDIAC) announced that global carbon dioxide emissions in 2009 reached 31,629,955 (thousand tons). The next year, global carbon dioxide emissions reached 33,508,901 (thousand tons). This data can clearly understand that the carbon dioxide emissions have increased dramatically year by year, posing a great threat to the global environment.

Generally speaking, the material used to cover the ground is called “paving”. For example, bricks can be used to protect the ground from wind and sand, and the ground can be smoothed for people and cars. At present, the most commonly used paving materials can be divided into asphalt concrete paving and cement concrete paving according to the materials used. Asphalt concrete pavement has the characteristics of waterproof, durable, acid and alkali resistant, but it has the disadvantages of softening and moving under the condition of heat, and it will dissolve in the case of gasoline or similar fluid. In addition, asphalt concrete pavements also have shortcomings such as darkness of the road surface, short service life, short life cycle, high maintenance cost, and high total cost. Cement concrete and related products are widely used in construction projects. However, cement has the characteristics of imperviousness and low porosity, so that the place where cement concrete pavement is laid cannot be planted. Especially in the summer, the surface temperature of asphalt concrete pavement or cement concrete pavement can reach 40 °C or higher. In addition to the heat island phenomenon caused by the urban or intensive development areas where these pavements are laid, the depression caused by the environment is also easy to generate society. problem.

In order to improve the disadvantages of the above-mentioned asphalt concrete and cement concrete, the prior art has also developed a water-permeable, porous and plantable green concrete which is an Environmentally Friendly Concrete (Eco-Concrete). The term "greening concrete" refers to concrete or a product thereof that can provide a suitable green plant growth environment and can carry out green vegetation. Traditional green concrete can be roughly divided into three types: (1) hole or channel type green concrete body, (2) porous continuous green concrete and (3) laying green concrete.

In general, the composition of traditional green concrete is mostly made of cement and single-stage crushed stone and other materials. In fact, the mining of cement and single-grade crushed stone aggregates still has environmental problems that cause environmental damage. In addition, the traditional green concrete still has the disadvantages of high weight of the concrete itself, the need for artificial hole making, difficult construction, poor water retention and water retention, and high material cost. Therefore, although the prior art has proposed green concrete having porous and water permeable characteristics, it is still necessary to further improve the characteristics of the prior art green concrete, in order to be more environmentally friendly, light in weight, low in cost, and easy to construct in a wide range. For example, the former technology of the Republic of China Patent No. I263624 "Reformation of Reservoir Silt and Construction Materials Containing Modified Reservoir Sludge" and Republic of China Patent Notice No. 00466215 "Reuse of Reservoir Sludge" provides access to reservoirs The technology of building mud and then building materials. However, reservoir silt is not easy to obtain and the cost is high.

In summary, although the issues related to environmental protection, green energy, energy conservation and carbon reduction have been widely recognized by the public, the green energy industry is currently a considerable industrial market. However, the brick surface used on the road today has poor water permeability and insufficient moisture retention, which causes the surface temperature to rise, resulting in serious damage to the environment.

Therefore, there is a need to provide a brick-type structural product that is easy to obtain, environmentally friendly, lightweight, low-cost, and easy to construct in a wide range, so as to effectively achieve environmental protection, green energy, energy conservation and carbon reduction, and improve the existence of prior art. The problem.

The main object of the present invention is to provide a brick type structural product and a manufacturing method thereof for improving the disadvantages of the prior art, and the brick type structure of the present invention can be made into a product having water permeability, plantable bricks, tiles, and the like. And the brick structure is alkaline, acidic or neutral to facilitate plant growth.

Firstly, the present invention provides a brick-shaped structural product for carrying out planting to maintain ecology. The brick-shaped structural product comprises: a body structure comprising: a cemented material; and a pellet; and a first-class structure. The flow channel structure is formed from a pulp material, and a plurality of holes or channels are formed in the body structure for the plants to grow by the plurality of holes or channels. Wherein the cementitious material is a cement, the pellet is a cerium oxide sand; the body structure is formed by the cement, the cerium oxide sand, a moisture and a water reducing agent, wherein the weight percentage of the cement is about 15 to 20, the weight percentage of the cerium oxide sand is about 70 to 75, the weight percentage of the moisture is about 8 to 10, and the weight percentage of the water reducing agent is about 0.15 to 0.20; the cement is monosilicate cement, Aluminate cement, monosulfoaluminate cement, monofluoroaluminate cement or an iron aluminate cement; the pellets are sand, stone or a combination of sand and stone.

The present invention provides a method of manufacturing a brick-shaped structural article, comprising the steps of: providing a mold for placing a first-class structure into the interior of the mold, wherein the shape of the mold matches the shape of the brick-shaped structural product; The cerium oxide sand and the cement are evenly stirred, and a specific proportion of the water reducing agent and the water are uniformly stirred; the cerium oxide sand, the cement, the water reducing agent and the water are mixed and stirred, and then filled in the mold; the mold is removed, and a brick is taken out. a structured article, wherein the flow channel structure forms a plurality of holes or channels in the body structure; and drying the brick-shaped structural article.

The invention further provides a method for manufacturing a flow channel structure of a brick-shaped structural product, to form a pulp flow channel core shape, comprising the steps of: obtaining a pulp material; removing impure substances contained in the pulp material; and the pulp material Adding water and stirring to make one of the slurry; the slurry is allowed to stand for a period of time to remove excess water suspended to form a slurry of pulp; after preparing one of the aqueous binders for molding, the water is added The binder is stirred evenly to form a homogeneous slurry of pulp; the agitated pulp is allowed to stand to precipitate a pulp having a larger specific gravity than water, and the excess moisture of the surface layer is removed after separation with water; The slurry is then homogenized again; the core mold is fixed, an appropriate amount of the mud pulp is filled and pressurized in the first-class road system in the core mold; and the pulp flow heart shape is completed and removed The heart mold.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below.

As shown in FIG. 1, the present invention provides a brick-type structural product 2, which can be an eco-Brick, which can be planted to maintain ecology. The brick-shaped structural product 2 includes a body structure 20 and a pulp. A plurality of holes 22 formed by the flow path 21 (shown in FIG. 2). In an embodiment of the present invention, the body structure 20 can be manufactured into various shapes according to construction requirements, such as a brick structure, a tile structure, a mixed soil block structure, a lithographic structure, or a continuous pavement structure, but the present invention does not This is limited. In one embodiment of the invention, the body structure 20 is formed by mixing the pulp material, the cementitious material, and the pellets in a predetermined ratio and appropriately agitating. In one embodiment of the present invention, the body structure 20 may also be formed by mixing the cementitious material and the pellets in a predetermined ratio and appropriately agitating.

In an embodiment of the present invention, the cementitious material is cement, and the cement may be silicate cement, aluminate cement, sulphoaluminate cement, fluoroaluminate cement or iron aluminate cement, but the invention Not limited to this. In addition, in order to achieve the strength of the body structure 20 of the present invention, the present invention can be applied to the grading of cemented concrete structures and the cementitious materials of the pellets by conventional techniques. In one embodiment of the invention, the plurality of holes 22 formed by the pulp flow path 21 may also be a plurality of channels.

In an embodiment of the invention, the pellets are sand, stone or a combination of sand and stone, or cerium oxide sand, but the invention is not limited thereto. The pellets used in the present invention may be fine aggregate pellets or coarse aggregate pellets. The fine aggregate has a particle size of about 0.16-5 mm, such as river sand, sea sand and mountain sand; the coarse aggregate has a particle size larger than 5 mm, such as gravel and pebbles. In addition, the pellets of the present invention may also be artificial lightweight aggregates (such as sintered fly ash lightweight aggregate, artificial sintered clay, foaming furnace stone, expanded shale, clay, schist, etc.), natural lightweight aggregates ( For example, vermiculite, pumice, diatomaceous earth, pearl stone, etc., expanded styrene particles (for example, styrofoam) and the like and/or one of the combinations thereof.

In an embodiment of the invention, the pulp material is produced from industrial waste paper or household waste paper, but the invention is not limited thereto.

As shown in FIG. 1, by mixing the cementitious material and the pellets (or the pulp material) in a predetermined ratio and appropriately stirring, in addition to forming the body structure 20, the pulp flow path 21 can be further used. The heart-shaped structure forms a plurality of holes or channels 22 on the surface of the body structure 20. It should be noted that the shape, size and number of the plurality of holes or channels 22 are not limited to those shown in FIG.

The brick type structural product of the invention has the characteristics of gas permeability, water permeability and light weight by multiple holes or channels 22, and can collect rainwater, relieve the drop of urban groundwater level, maintain soil moisture, adsorb urban pollutants, and improve urban heat. Modern urban environmental problems such as loops and mitigation of heat island effects.

In an embodiment of the present invention, the present invention can use 10%, 20%, 30% of three different ratios of pulp materials and 90%, 80%, 70% of pellets (such as sand, sand or hearthstone) The body structure 20 is formed by stirring into a cement, but the invention is not limited thereto, and the ratio of the pulp material to the pellets may be various ratios, and the cover may contain nutrients for the grass seed as long as it contains the pulp material component. Plant growth, but different levels will affect the growth and germination period of plants such as grass seeds.

The present invention is capable of improving the disadvantages of the prior art, in which a large reason is that the pulp material is used to form the flow channel core structure 21, and a plurality of holes or channels 22 are formed on the surface of the body structure 20 for planting plants. The following is a determination of the content of a common pulp material: It can be seen from the above numerical values that the pulp material contains up to 48.2% of organic matter, which is quite advantageous for plant growth, and the ash is also advantageous for the bonding, strengthening and toughness of the bulk structure 20.

In an implementation of the present invention, the body structure 20 may further comprise materials such as kitchen materials, fertilizer or coconut milk materials to facilitate plant growth. In addition, different plants have a suitable acid-alkaline growth environment, and thus the body structure 20 and or the channel core structure 21 of the brick-type structural product 2 of the present invention may further comprise a pH adjusting agent, depending on the plant to the acid-base. The body structure 20 is adjusted to be alkaline, acidic or neutral to facilitate the growth of various plants. It should be noted that the present invention can also adjust the body structure 20 or the flow channel core structure 21 to be alkaline, acidic or neutral by adjusting the ratio of the pulp material, the cementitious material and the pellets. A pH adjuster is required.

In addition, the body structure 20 and/or the flow channel core structure 21 of the brick-type structural product 1 of the present invention may further include a color enhancer, a stabilizer and the like to increase the aesthetics and stability thereof.

Since the flow channel core structure 21 of the present invention is made of pulp material, a plurality of holes or channels 22 are formed in the body structure 20 to fill the plurality of holes or channels 22 with the pulp material 23. As shown in FIG. 2, the plurality of holes or channels 22 are circular and regularly arranged, and the holes or channels communicate with each other, but the invention is not limited thereto. The plurality of holes or channels 22 may also be in other shapes or irregularly arranged, and the shape, size and number of the plurality of holes or channels 22 are not limited to those shown in FIG. As shown in FIG. 3, the plant 24 can be smoothly grown in the plurality of holes or channels 22 by the brick-shaped structural article 2 of the present invention.

In an embodiment of the invention, the body structure 20 is formed of cement, cerium oxide sand, moisture and a water reducing agent, wherein the weight percentage of the cement is about 15 to 20, and the weight percentage of the cerium oxide sand is about 70 to 75. The weight percentage of moisture is about 8 to 10, and the weight percentage of the water reducing agent is about 0.15 to 0.20, but the invention is not limited thereto. In one embodiment of the present invention, the plurality of holes or channels 22 may be filled with cerium oxide sand in addition to the pulp material, wherein the weight percentage of the pulp material is about 40, and the weight percentage of the cerium oxide sand is about 60. However, the present invention is not limited thereto, and the ratio of the pulp material to the cerium oxide sand may be various ratios, and the cover as long as it contains the pulp material component, that is, contains nutrients for plant growth such as grass seeds, but different contents. Will affect the growth germination period of plants such as grass seeds.

In a specific embodiment of the present invention, the present invention uses the following materials and weight percentages to form the brick-shaped structural article 2, but the invention is not limited thereto: 1. The body structure 20 material: cerium oxide sand (71.53%) ), cement (18.46%), moisture (9.83%) and water reducing agent (0.18). Among them, cerium oxide sand (SiO ₂ ) has a purity of 99.5%, a particle size of AFS particle size index = 17 to 23, 42%, and AFS particle size index = 45, accounting for 58%. The water reducing agent reduces water consumption by 20%. 2. Filling material for multiple holes or channels 22: pulp material (40%), cerium oxide sand (60%). The cerium oxide sand (SiO ₂ ) has a purity of 99.5% and a particle size of AFS particle size index = 10 to 15. The pulp material has a moisture content of 280%. 3. Plant 24: Carpet-like grass.

Next, please refer to FIG. 4 for the manufacturing process of the brick-shaped structural product 2 of the present invention. However, the manufacturing steps of the brick-shaped structural product 2 of the present invention to be noted are not limited thereto, and the brick-shaped structural product 2 of the present invention can also be produced in other manners.

First, step S1 is performed to provide a mold. The shape of the mold is matched to the different shapes of various brick-shaped structural products. For example, when a quadrangular block-shaped brick-shaped structural article is to be manufactured, the mold includes an upper side, a lower side, and both side edges, and the inside of the mold includes a flow path structure for forming a plurality of holes or channels that communicate with each other. In an embodiment of the present invention, the present invention can form the mold and the runner structure by a conventional technique, and the mold can be made of metal, wood, paper or plastic.

Next, in step S2, a specific proportion of cerium oxide sand and cement are uniformly stirred, and a specific proportion of the water reducing agent and water are uniformly stirred. Next, in step S3, the cerium oxide sand, the cement, the water reducing agent and the water are mixed and stirred, and then filled in the mold.

Next, step S4 is performed to remove the flow path structure inside the mold; and step S5 is performed to remove the upper side, the lower side, and both sides of the mold. This completes the undried brick-type structural product. Next, in step S6, the brick-shaped structural product is dried, for example, in air for more than 24 hours.

Next, in step S7, the pulp material and/or the cerium oxide sand are filled in the plurality of holes or channels of the brick-shaped structural product. Next, in step S8, plant seeds or plantings are sprinkled, so that a brick-shaped structural product 2 for planting plants 24 as shown in Fig. 3 can be formed.

It should be noted that different brick-type structural products can be manufactured in different ways. For example, if the brick-shaped structural product is a continuous paving structure, the continuous paving can be completed by a construction method such as a flexible paving or a rigid paving of a conventional cement or asphalt road. Alternatively, the pulp material may be formed into a mold and a runner structure to form a planting system. After performing the above steps S2 and S3, plants may be planted in a plurality of holes or channels formed by the planting system without removing The mold does not need to be filled with pulp material and/or cerium oxide sand in a plurality of holes or channels. This will contribute to the mass production of the brick-like structural products of the present invention.

Fig. 5 shows a method of manufacturing the flow path structure of the brick-type structural article of the present invention to form a pulp flow channel core. It comprises the following steps: Step 1: The waste paper slurry is obtained from a paper mill. Step 2: Remove impure substances such as plastic particles, plastic bag pieces, plastic laminating films, small wood chips, coated paper sheets, metal sheets, and hair cuts contained in the pulp. Step 3: Due to the different volume of the paper slurry, it will affect the homogeneity of the volume after the channel is filled. Therefore, the pulp should be added with water and stirred to form a fine slurry to enhance the density of the pulp core after molding. Step 4: The slurry after refining the pulp is allowed to stand in a closed container for a certain period of time to remove excess water suspended in the surface layer of the paper to improve the solid content. Step 5: After the water-based binder is prepared and formed, the binder is added to the slurry and stirred by a mixer. Step 6: Stir the paper slurry evenly to form a homogeneous muddy pulp. Step 7: The agitated pulp is statically placed in a closed container at room temperature of 25 ° C for 96 hours to precipitate a pulp having a larger specific gravity than water, and then separated from the water to remove excess water from the surface layer. Step 8: The muddy pulp after removing the water is stirred and homogenized again. Step 9: Fix the core mold with C-clamp and steel plate, take an appropriate amount of muddy paper slurry, fill and pressurize the flow path system in the heart cavity. Step 10: Complete the flow path core-type filling paper slurry demoulding operation. Step 11: The pulp heart shape is completed. Step 12: The pulp core is dry.

The brick-type structural product of the present invention, depending on its structure, can be adapted for different uses. For example, if it is a brick structure, it can be used for paving roads, sidewalks, corridors or as a home landscaping, laying in the garden; if it is a tile structure, it can be used for laying on the roof; if it is a mixed soil block structure In addition to being used as a paving surface, it can also be used as a construction material, such as for building construction, bridges, road pavements, runways, railway sleepers, retaining walls, berms, culverts, dams, water tanks, water towers, oil tanks, Structures such as channels, ditches, wharves, breakwaters, military bunkers, etc.; if they are lithographic structures, they can also be placed on the outer wall or inner wall of a building for landscaping or interior decoration; if it is a continuous paving structure, It is suitable for laying on roads, sidewalks, corridors or outdoor parking lots, squares, playgrounds, playgrounds and other places.

The brick type structural product of the present invention can be said to be an "environmental brick". Bricks were originally made from clay as raw materials and used for paving roads in buildings and pavements. However, in order to protect cultivated land and maintain the environment, bricks were gradually made using new materials. At present, the environmentally-friendly bricks produced on the market are made by mixing clay, sand, stone and cement. Then, the materials mixed and mixed are filled into the mold, which are tightly combined by shock and compression, and finally demoulded and baked. When you are dry, you can get environmentally friendly bricks. The traditional environmentally friendly bricks cause the surface temperature to rise and the environment to suffer serious damage.

The environmentally-friendly brick of the present invention uses pulp sludge recovered from a paper mill. The pulp sludge contains elements such as elemental nitrogen (N), phosphorus (P), etc., which are often used in plant fertilizers, and is added with clay, sand, and stone. Green brick made of cement mixed. Recycling waste paper to achieve environmentally friendly reuse, reducing the use of clay, sand, stone; and then the resulting brick surface has many holes or channels, the hole or channel has good permeability and drainage function, The design of the internal special flow channel makes the waste paper pulp absorb moisture more effectively and achieve the purpose of cooling.

The surface of the green brick of the invention can be used for planting grass, gardening and landscaping, and beautifying the environment. Therefore, the product can be applied to: (1) humid and hot areas, such as: China, Malaysia, Southeast Asia (2) paving the road, such as: Humanity, parking lot, model road, square, cultural and creative park, park (3) beautify the environment, such as: construction materials. Since the green brick of the present invention can avoid water accumulation and inconvenient walking, it is very suitable for laying in a science park, a park or a school.

The brick type structural product of the invention can be said to be a "breathable brick", which not only has the water permeability and the moisturizing property, but also beautifies the environment and reduces the environmental pollution, and has other advantages, such as water retention on the urban surface as shown below. In terms of “low-impact development”, if heavy rains and heavy rains help to drain water, it will help to dissipate heat in the high sun and become the best environmental protection demonstration. For example, the brick-type structural article of the present invention has at least the following advantages: 1. The brick-shaped structural article is firm and variable in shape. 2. The pulp material contains nearly 50% of the organic matter, including nitrogen (N), phosphorus (P) and other substances, which is conducive to plant growth. 3. Brick-type structural products are easy to absorb water, have good water permeability, can maintain moisture and nutrients, and are beneficial to plant growth. 4. The pulp material contains nearly 30% ash, which is tough and resistant to deformation caused by heat expansion and contraction. 5. Brick-shaped structural products can grow plants and reduce the depression caused by the extreme heat of the environment. 6. Brick-shaped structural products can replace ordinary bricks and reduce the ambient temperature. 7. Promote the recycling application of waste paper pulp and the recycling of waste paper to achieve environmental protection. 9. Brick-shaped structural products can be used as the best building materials for green energy environments. 10. Due to the rapid growth of plants, brick-shaped structural products can be used more efficiently for landscaping, greening and other functions. 11. The brick structure has a special flow channel design inside, which can increase the water solubility of the waste paper pulp and effectively reduce the surface temperature. 12. The surface of the brick structure product has porous holes or channels, which contribute to the function of permeability and drainage. 13. Because the holes or channels of the brick structure have good water inflow and outflow function, the size of the hole can be changed and applied to different environments.

In one embodiment of the present invention, the present invention utilizes the secondary recovered waste pulp as a raw material, and since the secondary recovered waste pulp is used as a raw material, it is easy to deposit high-quality environmentally-friendly bricks.

To sum up, the present invention, regardless of its purpose, means and efficacy, shows its distinctive features of the prior art. You are requested to review the examination and express the patent as soon as possible. It should be noted that the various embodiments described above are merely illustrative for ease of explanation, and the scope of the invention is intended to be limited by the scope of the claims.

2‧‧‧Brick-type structural products
20‧‧‧ body structure
22‧‧‧Multiple holes or channels
23‧‧‧Pulp material
21‧‧‧Pulp flow path
24‧‧‧ plants

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a brick-type structural article in accordance with one embodiment of the present invention. 2 is a schematic view of a pulp flow path in accordance with an embodiment of the present invention. Figure 3 is a schematic illustration of a plant grown in a brick-type structural article in accordance with one embodiment of the present invention. 4 is a flow chart showing the manufacture of a brick-shaped structural product in accordance with an embodiment of the present invention. Figure 5 is a flow chart showing the production of a pulp flow path for a brick-type structural product according to an embodiment of the present invention.

2‧‧‧Brick-type structural products

20‧‧‧ body structure

22‧‧‧Multiple holes

23‧‧‧Pulp material

Claims (9)

A brick structure product for planting to maintain ecology, the brick structure comprising: a body structure comprising: a cementitious material; and a pellet; and a first-class structure, the channel structure Formed from a pulp material, and a plurality of holes or channels are formed in the body structure for the plants to grow by the plurality of holes or channels. The brick-shaped structural product of claim 2, wherein the cementitious material is a cement, and the pellet is a cerium oxide sand. The brick-shaped structural product according to claim 3, wherein the body structure is formed by the cement, the cerium oxide sand, a moisture and a water reducing agent, wherein the weight percentage of the cement is about 15 to 20 The weight percentage of the cerium oxide sand is about 70 to 75, the weight percentage of the moisture is about 8 to 10, and the weight percentage of the water reducing agent is about 0.15 to 0.20. The brick-shaped structural product according to claim 2, wherein the cement is monosilicate cement, mono aluminate cement, monosulfoaluminate cement, monofluoroaluminate cement or monolithium aluminate. cement. The brick-shaped structural article of claim 7, wherein the pellet is sand, stone or a combination of sand and stone. A method for manufacturing a brick-shaped structural product, comprising the steps of: providing a mold, placing a first-class structure into the interior of the mold, wherein the shape of the mold matches the shape of the brick-shaped structural product; and a specific proportion of cerium oxide The sand and the cement are evenly stirred, and a specific proportion of the water reducing agent and the water are uniformly stirred; the cerium oxide sand, the cement, the water reducing agent and the water are mixed and stirred, and then filled in the mold; the mold is removed, and a brick-shaped structural product is taken out. Wherein the flow channel structure forms a plurality of holes or channels in the body structure; and drying the brick structure product. The method for manufacturing a brick-shaped structural article according to claim 6, comprising the steps of: removing the flow passage structure inside the mold; and filling the plurality of holes or channels of the brick-shaped structural product with pulp material and/or Or cerium oxide sand. A method for manufacturing a flow path structure of a brick-shaped structural product to form a pulp flow channel core shape, comprising the steps of: obtaining a pulp material; removing impure substances contained in the pulp material; adding water to the pulp material, and Stirring to reduce one of the slurry; the slurry is allowed to stand for a period of time to remove excess moisture in suspension to form a slurry of pulp; after preparing one of the aqueous binders for molding, the aqueous binder is added, and Stirring evenly to form a homogeneous slurry of pulp; the agitated pulp is allowed to stand, so that the pulp with a larger specific gravity is precipitated, and the excess moisture of the surface layer is removed after separation with water; the mud after removing moisture The pulp is homogenized again; the core mold is fixed, an appropriate amount of the mud pulp is filled and pressurized in the first-class road system in the core mold; and the pulp flow heart shape is completed, and the core mold is removed . The method for manufacturing a flow path structure of a brick-shaped structural article according to claim 8 of the invention, comprising the steps of: drying the pulp flow channel core shape.