CN115383867A

CN115383867A - Basalt fiber ecological water permeable brick and preparation method thereof

Info

Publication number: CN115383867A
Application number: CN202210979363.9A
Authority: CN
Inventors: 王先刚; 杨柳; 瞿圣添; 张文状; 曹冬冬; 李岱军
Original assignee: Sichuan Juyuan Basalt Fiber Technology Co ltd
Current assignee: Sichuan Juyuan Basalt Fiber Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-25

Abstract

The invention provides a basalt fiber ecological water permeable brick and a preparation method thereof, and relates to the technical field of water permeable bricks. According to the invention, through the sand making equipment, the waste silk is recycled, the waste silk treatment cost is saved, and the basalt chopped fiber with a preset proportion is added, so that the prepared basalt fiber ecological water permeable brick meets the national green environmental protection policy, is ecological-friendly, and ensures that the product quality (strength such as splitting and compression resistance) meets the industrial standard.

Description

Basalt fiber ecological water permeable brick and preparation method thereof

Technical Field

The invention relates to the technical field of water permeable bricks, in particular to a basalt fiber ecological water permeable brick and a preparation method thereof.

Background

The water permeable brick is a new environment-friendly building material product which is produced for solving the problem of hardening of the surface of the city, creating a high-quality natural living environment and maintaining the ecological balance of the city. The water-permeable floor adopts slag waste, waste ceramic and the like as raw materials, belongs to a green and environment-friendly product, can keep the water permeability and moisture retention of the ground, and has the characteristics of high strength, cold resistance, weather resistance, noise reduction and the like. However, the existing water permeable bricks are all formed by bonding, curing and molding by adopting a macadam substrate and utilizing various organic or inorganic adhesives, and have the technical problems that the overall structural strength is limited and the strength such as splitting and compression resistance cannot reach the industrial standard on the premise of meeting the water permeability.

The basalt fiber is a continuous fiber formed by high-speed drawing of basalt stone materials through a platinum rhodium alloy wire drawing bushing after high-temperature melting, and consists of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, iron oxide, titanium dioxide and the like. The basalt continuous fiber has high strength, various excellent performances of electrical insulation, corrosion resistance, high temperature resistance and the like, and small environmental pollution, so the basalt continuous fiber is a true green and environment-friendly material, and the basalt fiber is taken as one of four major fibers (carbon fiber, aramid fiber, ultra-high molecular weight polyethylene and basalt fiber) which are mainly developed in China, and industrial production is realized.

In the basalt fiber drawing production process, a large amount of derivative, namely waste silk, is inevitably generated, the main component of the waste silk is still silicon dioxide, although the environment is not polluted, garbage combustion power generation cannot be carried out after environmental sanitation recovery, secondary processing and utilization cannot be carried out again, and the common treatment mode is landfill, so that the waste silk is naturally degraded in the environment. However, the cost of waste silk landfill treatment is high throughout the year, and the national green policy is also violated.

At present, basalt fiber waste filaments have diversified appearance forms, including long fiber soft filaments, long fiber hard filaments, long fiber floccules, irregular black vitreous bodies, black vitreous body drops, and the like. Because the waste silk has different shapes, different hardness and different length, the waste silk is difficult to be directly processed into usable semi-finished products (namely waste silk sand), and no equipment for processing the waste silk sand exists in the market. If the waste wires in different forms are manually sorted and classified and then processed by different production equipment, the production cost and the time cost are too high, which is one of the reasons why the waste wires generated in the basalt fiber drawing process are not effectively treated in the same industry so far.

Therefore, based on the concept of changing waste into valuable and the excellent performance of basalt fibers, how to treat the waste filaments to enable the waste filaments to be used as raw materials for preparing water permeable bricks to realize waste recycling is a main research and development direction and thought in the future.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a basalt fiber ecological water permeable brick and a preparation method thereof, and aims to solve the problems that the existing water permeable brick is limited in overall structural strength and cannot meet the industrial standard in strength such as splitting strength and compression strength.

In order to achieve the purpose, the invention provides the following technical scheme:

a preparation method of the basalt fiber ecological water permeable brick comprises the following steps:

s1, collecting waste silk produced in the basalt fiber drawing production process and putting the waste silk into sand making equipment for processing to obtain waste silk sand;

s2, putting the waste silk sand into stirring equipment, adding basalt chopped fiber in a preset proportion, and uniformly stirring and mixing;

s3, respectively adding cement, natural river sand and natural basalt stones into stirring equipment for dry mixing to obtain a prefabricated material;

s4, conveying the prefabricated material into a brick making machine for vibration forming to obtain a base material;

s5, covering a wear-resistant layer or a color layer on the surface of the base material, vibrating, extruding and forming, and then demolding to obtain a green brick;

and S6, conveying the green bricks to a drying workshop through a belt for drying to obtain finished basalt fiber ecological water permeable bricks, and taking the finished basalt fiber ecological water permeable bricks out of a warehouse.

In an embodiment disclosed in the present application, the sand making apparatus described in step S1 includes, sequentially arranged:

the device comprises a belt conveyor, a feed hopper, a processing host, a high-pressure fan, a feeding pipeline, a discharge hopper and a dust remover;

the bottom in the feed hopper is provided with a vibrating sieve plate for sieving fiber waste silk and vitreous waste silk, and the vibrating sieve plate has two working states of closing and opening; when the vibrating screen plate is in a closed state, the fiber waste silk is intercepted by the vibrating screen plate through self vibration, and the vitreous body waste silk can pass through the screen holes of the vibrating screen plate and leak into the processing host machine for processing; when the vibrating screen plate is in an open state, the intercepted fiber waste silk freely falls into the processing host machine for processing.

In one embodiment disclosed in the present application, the processing main machine includes a rack, a box body and a main machine body, the box body is fixedly mounted on the rack, a processing area and idle areas located at two sides of the processing area are arranged in the box body, and the processing area is located right below the feed hopper;

the main machine body comprises grinding teeth and shredding teeth which are arranged in the box body and coaxially rotate, the grinding teeth and the shredding teeth can be switched through pushing of a hydraulic mechanism to enter the processing area and are respectively opposite to the glass body waste silk and the fiber waste silk.

In one embodiment of the present disclosure, the fiber-based waste comprises a long fiber soft filamentous waste, a long fiber hard filamentous waste, and a long fiber flocculent waste;

the vitreous body waste silk comprises irregular black vitreous body waste silk and black vitreous body water drop waste silk.

In one embodiment disclosed herein, the waste silk sand in step S1 is mainly formed by mixing sand-like small particles, stone-like medium particles, and microfibrous particles;

wherein the sand-like small particles have a specific gravity of 80-90%, the stone-like medium particles have a specific gravity of 10-15%, and the microfibrous particles have a specific gravity of 5-10%.

In an embodiment disclosed in the application, the basalt chopped fiber in the step S2 adopts a hydrophilic impregnating compound, the wiredrawing range is 17-22 μm, the chopping range is 20-30 mm, and the drying process comprises the following steps: the temperature is 90-140 ℃, and the baking time is 6 hours.

In one embodiment disclosed in the present application, the basalt chopped strands have a length of 20mm, and are added in a predetermined ratio of 0.3% of the total weight of the water permeable brick.

The basalt fiber ecological water permeable brick is prepared by adopting the preparation method of the basalt fiber ecological water permeable brick.

Compared with the prior art, the invention has the beneficial effects that:

1. through the sand making equipment, the waste silk is recycled, the waste silk treatment cost is saved, and the basalt chopped fibers in a preset proportion are added, so that the prepared basalt fiber ecological water permeable brick meets the national green environmental protection policy, is ecological friendly, and ensures that the product quality (strength such as splitting strength and compression strength) meets the industrial standard.

2. The sand making equipment screens the waste wires through the vibrating screen plate without manual sorting, and the pertinence switching grinding teeth and the shredding teeth respectively crush the waste wires in different shapes to make waste wire sand, so that the waste wire sand making becomes easy, and the production cost is reduced.

3. The basalt chopped fiber is 20mm in length and is added according to a predetermined proportion of 0.3% of the total weight of the water permeable brick, the basalt chopped fiber is more easily combined with cement, both ends of a single group of mixed fiber can be in a dandelion shape, and the basalt chopped fiber can be well agglomerated in a base material to grasp mixtures such as small stones in the base material, so that a good skeleton effect is achieved in the brick body, the toughness and the bending and pulling resistance of the brick body can be obviously improved, the overall strength of the brick body is enhanced, the porosity is improved, the water permeability is increased, the basalt chopped fiber is consistent with the thermal expansion coefficient of the cement, and the cracking of the cement in the brick body is effectively prevented.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of a sand making apparatus according to the present invention;

FIG. 2 is a schematic top view of a sand making apparatus according to the present invention;

FIG. 3 is a schematic view of a right-side partial structure of a sand manufacturing apparatus according to the present invention;

FIG. 4 is a diagram showing the relationship between the splitting strength of a basalt fiber ecological water permeable brick with the thickness of 15mm and the doping amount of basalt chopped fibers;

FIG. 5 is a graph showing the relationship between the splitting strength of the basalt fiber ecological water permeable brick with the diameter of 20mm and the doping amount of basalt chopped fibers;

FIG. 6 is a graph showing the relationship between the splitting strength of a basalt fiber ecological water permeable brick of 30mm and the amount of basalt chopped fibers mixed;

FIG. 7 is a graph showing the relationship between the compressive strength of the basalt fiber ecological water permeable brick of 15mm and the amount of basalt chopped fibers mixed;

FIG. 8 is a graph showing the relationship between the compressive strength of the basalt fiber ecological water permeable brick of 20mm and the blending amount of basalt chopped fibers;

FIG. 9 is a graph showing the relationship between the compressive strength of the basalt fiber ecological water permeable brick of 30mm and the amount of the basalt chopped fibers mixed;

fig. 10 is a schematic step view of a preparation method of the basalt fiber ecological water permeable brick according to the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 10, the invention provides a preparation method of a basalt fiber ecological water permeable brick, which comprises the following steps:

s1, collecting waste silk produced in the basalt fiber drawing production process and putting the waste silk into sand making equipment for processing to obtain waste silk sand.

Specifically, as shown in fig. 1 to 3, the sand making equipment includes a belt conveyor 1, a feed hopper 2, a processing main machine 3, a high-pressure fan 4, a feeding pipeline 5, a discharge hopper 6, and a dust remover 7, which are sequentially arranged.

The bottom in the feed hopper 2 is provided with a vibrating screen plate (not shown in the figure) for screening fiber waste silk and vitreous waste silk.

The vibrating screen plate has two working states of closing and opening; when the vibrating screen plate is in a closed state, the vibrating screen plate is vibrated by itself to intercept the fiber waste silk, and the vitreous body waste silk can pass through the screen holes of the vibrating screen plate and leak into the processing host machine 3 for processing; when the vibrating screen plate is in an open state, the intercepted fiber waste silk falls freely into the processing main machine 3 for processing.

In the embodiment, the mesh opening of the vibrating screen plate is 30-50 mm. Because the volume of the vitreous waste silk is smaller than the aperture of the sieve pore of the vibrating sieve plate, when the vibrating sieve plate vibrates, the vitreous waste silk can naturally leak down along the sieve pore of the vibrating sieve plate, thereby being separated from the fiber waste silk. The computer experiment proves that the waste silk leaked through the sieve pores after the vibration of the vibrating sieve plate reaches more than 95 percent.

The processing host 3 comprises a frame 31, a box body 32 and a host body, wherein the box body 32 is fixedly arranged on the frame 31, a processing area and idle areas positioned at two sides of the processing area are arranged in the box body 32, and the processing area is positioned under the feed hopper 2; the host computer body is including locating in box 32 and coaxial pivoted grinding tooth and the tooth of tearing, and the promotion that grinding tooth and the tooth of tearing pass through hydraulic pressure mechanism can realize switching, smashes glass body class waste silk and fibre class waste silk respectively in order to get into the processing district. When the processing is started, the grinding teeth are positioned in the processing area, and the shredding teeth are positioned in the idle area on one side of the processing area; starting the vibrating sieve plate in a closed state, leaking the vitreous waste silk in the feed hopper 2 to a processing area, then finishing crushing processing by the rotation of grinding teeth to obtain sand-shaped small particles and stone-shaped medium particles of waste silk sand, and pumping away the waste silk sand in a negative pressure mode by a high-pressure fan 4; then, starting a hydraulic mechanism, pushing grinding teeth to enter an idle area on the other side of the processing area, and pushing shredding teeth to enter the processing area to realize switching, opening the vibrating screen plate at the moment, enabling the intercepted fiber waste silk to freely fall to the processing area, completing the smashing processing through the rotation of the shredding teeth to obtain the waste silk sand with microfibrous particles, and then pumping away the waste silk sand in a negative pressure mode by a high-pressure fan 4; and finally, pushing the grinding teeth and the shredding teeth to be switched again to restore to the initial state through the reverse action of the hydraulic mechanism. In this embodiment, the hydraulic mechanism may be a hydraulic telescopic cylinder, and is not particularly limited herein.

The fiber waste silk comprises long fiber soft silk waste silk, long fiber hard silk waste silk and long fiber flocculent waste silk; the vitreous waste silk comprises irregular black vitreous waste silk and black vitreous water drop waste silk.

The working principle of the sand making equipment is as follows:

the collected waste silk materials are conveyed into a feed hopper 2 through a belt conveyor 1, a vibrating sieve plate is started, so that the vitreous waste silk leaks to a processing area of a processing host machine 3 and is crushed by rotating grinding teeth, and the crushed first particle materials (namely, waste silk sand of sand-shaped small particles and stone-shaped medium particles) are blown to a discharge hopper 6 through a feeding pipeline 5 under the suction action of a high-pressure fan 4; at the moment, basically all the fiber waste silk materials intercepted by the vibrating sieve plate are left in the feed hopper 2, and because the fiber waste silk materials cannot pass through the sieve pores of the vibrating sieve plate, even if a small amount of the fiber waste silk materials leak to the processing area, the grinding effect of the grinding teeth cannot be influenced; then, starting a hydraulic mechanism, switching the shredding teeth to enter a processing area to work, opening the vibrating sieve plate, enabling the fiber waste silk materials to freely fall to the processing area to be smashed by the rotating shredding teeth, and blowing the processed second particle materials (namely the waste silk sand of the microfibrous particles) to a discharge hopper 6 through a high-pressure fan 4 and a feeding pipeline 5 again; large-particle-size particles which are not pumped away by the high-pressure fan 4 fall to the bottom of the box body 32, and the box body 32 is opened after a period needing to be cleaned and during maintenance to be uniformly collected for feeding in next production; the two granular materials are fully mixed in the discharge hopper 6 due to the blowing of the high-pressure fan 4 so as to meet the use standard of the permeable brick base material; in the period, the dust remover 7 is always in a working state, and can suck away the dust entering the discharge hopper 6 in time, thereby effectively reducing the dust pollution.

This sand making equipment sieves the waste silk through the vibrating screen board and need not artifical letter sorting to the pertinence switches the grinding tooth and tears the tooth and smashes the waste silk of different appearances respectively in order to make waste silk sand, makes waste silk sand making become easy, has reduced manufacturing cost moreover.

The waste silk sand is mainly formed by mixing small sand-shaped particles, medium stone-shaped particles and micro-fiber-shaped particles, and is used as a water permeable brick base material to replace the traditional stones and sand; wherein, the proportion of the sand-shaped small particles (the percentage of the total weight of the waste silk sand, the same below) is 80-90%, the proportion of the stone-shaped medium particles is 10-15%, and the proportion of the microfibrous particles is 5-10%.

S2, putting the waste silk sand into stirring equipment, adding the basalt chopped fibers in a preset proportion, and uniformly stirring and mixing.

Specifically, the basalt chopped fiber adopts a hydrophilic impregnating compound (type QS-021), the wiredrawing range is 17-22 μm, the chopping range is 20-30 mm (namely the length of the basalt chopped fiber), and the drying process comprises the following steps: the temperature is 90-140 ℃, and the baking time is 6 hours.

Referring to fig. 4 to 6, the splitting strength of the basalt fiber ecological water permeable brick represented by an ordinate in the graph has an obvious nonlinear relationship with the basalt chopped fiber content represented by an abscissa.

Referring to fig. 7 to 9, the compressive strength of the basalt fiber ecological water permeable brick represented by the ordinate in the figure has an obvious nonlinear relationship with the content of the basalt chopped fibers represented by the abscissa.

From the figures, when the content of the basalt chopped fibers (accounting for the total weight of the water permeable brick) is 0.1-0.4%, the performance indexes of the basalt fiber ecological water permeable brick, such as splitting and compressive strength, in different ages (7 days and 28 days) are greatly improved.

Through comprehensive comparison, when the mixing amount of the basalt chopped fibers reaches 0.3%, the basalt fiber ecological water permeable brick has the best splitting and compressive strength stability (the smallest difference) in different ages (7 days and 28 days), and the length interval of the corresponding optimal basalt chopped fibers is 15-20 mm.

In this example, the basalt chopped fiber has a length of 20mm, and is added in a predetermined ratio of 0.3% of the total weight of the water permeable brick. The basalt chopped fiber and cement are combined more easily, the two ends of the blended single-group fiber can be in a dandelion shape, the mixture such as small stones and the like in the base material can be well held in a group, a good skeleton effect is achieved in the brick body, the toughness and the bending tensile property of the brick body can be obviously improved, the overall strength of the brick body is enhanced, the porosity is improved, the water permeability is improved, the basalt chopped fiber and cement have the same thermal expansion coefficient, and the cracking of the cement in the brick body is effectively prevented.

And S3, respectively adding cement, natural river sand and natural basalt pebbles into stirring equipment for dry mixing to obtain a prefabricated material.

Specifically, the specific gravity of the waste silk sand (the percentage of the total weight of the water permeable brick, the same below) is 18%, the specific gravity of the cement is 30%, the specific gravity of the natural river sand is 41.7%, and the specific gravity of the natural basalt stone is 10%. Wherein, the natural basalt stone can be replaced by natural quartz sand.

And S4, conveying the prefabricated material into a brick making machine for vibration forming to obtain the base material.

And S5, covering a wear-resistant layer or a color layer on the surface of the base material, vibrating, extruding and forming, and then demolding to obtain a green brick.

Specifically, a color layer or the height of the color layer is reserved according to the thickness proportion of the brick body during manufacturing, and after the base material is filled into a mold, the corresponding material is added to be laid on the surface of the base material and then enter the interior of a brick making machine for manufacturing. The natural stone particles are diversified in color selection, can be prepared according to customer requirements, do not contain harmful coloring agent components, do not generate harmful substances after being paved and attached, and do not pollute underground water resources.

The basalt fiber ecological water permeable brick prepared by the method has the following detection report as shown in the following table:

TABLE 1 detection report of basalt fiber ecological water permeable brick

Therefore, the compressive strength average value of the basalt fiber ecological water permeable brick added with the waste silk sand and the basalt chopped fibers is 1.13 times of the technical requirement, the compressive strength minimum value is 1.33 times of the technical requirement, the water retention rate is 3.1 times of the technical requirement, the frost resistance quality loss rate and the frost resistance strength loss rate are respectively 3.9 times and 1.9 times of the technical requirement, and the basalt fiber ecological water permeable brick is proved to be superior to the standard indexes and to meet the requirements of JGJ/376-2012 standard.

In conclusion, the basalt fiber ecological water permeable brick prepared by the method realizes the reutilization of the waste silk, saves the treatment cost of the waste silk, accords with the national green and environmental protection policy, is ecological-friendly, and ensures that the product quality (strength such as splitting strength, compression strength and the like) accords with the industrial standard.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.

Claims

1. The preparation method of the basalt fiber ecological water permeable brick is characterized by comprising the following steps:

s3, respectively adding cement, natural river sand and natural basalt pebbles into stirring equipment for dry mixing to obtain a prefabricated material;

2. The preparation method of the basalt fiber ecological water permeable brick as claimed in claim 1, wherein the sand making equipment in the step S1 comprises the following components in sequence:

the bottom in the feed hopper is provided with a vibrating sieve plate for sieving fiber waste silk and vitreous waste silk, and the vibrating sieve plate has two working states of closing and opening; when the vibrating screen plate is in a closed state, the vibrating screen plate is vibrated by the vibrating screen plate, the fiber waste silk is intercepted, and the vitreous body waste silk can pass through the screen holes of the vibrating screen plate and leak into the processing host machine for processing; when the vibrating screen plate is in an open state, the intercepted fiber waste silk freely falls into the processing host machine for processing.

3. The preparation method of the basalt fiber ecological water permeable brick according to claim 2, wherein the preparation method comprises the following steps:

the processing main machine comprises a rack, a box body and a main machine body, wherein the box body is fixedly arranged on the rack, a processing area and idle areas positioned at two sides of the processing area are arranged in the box body, and the processing area is positioned under the feed hopper;

4. The preparation method of the basalt fiber ecological water permeable brick according to claim 2 or 3, characterized by comprising the following steps:

the fiber waste silk comprises long fiber soft silk waste silk, long fiber hard silk waste silk and long fiber flocculent waste silk;

5. The preparation method of the basalt fiber ecological water permeable brick according to claim 1, which is characterized by comprising the following steps:

the waste silk sand in the step S1 is mainly formed by mixing small sand-shaped particles, stone-shaped medium-sized particles and micro-fiber-shaped particles;

6. The preparation method of the basalt fiber ecological water permeable brick according to claim 1, wherein the basalt chopped fiber in the step S2 is prepared by using a hydrophilic impregnating compound, the wiredrawing range is 17-22 μm, the chopping range is 20-30 mm, and the drying process comprises the following steps: the temperature is 90-140 ℃, and the baking time is 6 hours.

7. The method for preparing the basalt fiber ecological water permeable brick according to claim 6, wherein the length of the basalt chopped fiber is 20mm, and the predetermined proportion added is 0.3% of the total weight of the water permeable brick.

8. The basalt fiber ecological water permeable brick is characterized by being prepared by the preparation method of the basalt fiber ecological water permeable brick according to claims 1 to 7.