KR20230130945A - A acoustic absorption type concrete composition and A acoustic absorption type brick used of it and A acoustic absorption type brick - Google Patents

Abstract

The improved sound-absorbing concrete composition according to the present invention, a sound-absorbing block using the same, and a sound-absorbing block coated with a sound-absorbing material include;
A sound-absorbing mortar or clay composition made by mixing cement or clay with sand and water in a certain ratio and a sound-absorbing material in a certain ratio to cement mortar or clay mortar; A sound-absorbing concrete composition made by mixing a sound-absorbing material in a certain ratio with a concrete mixture of cement, sand, gravel, and water in a certain ratio; A sound-absorbing block (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) formed in a normal shape and shape using the sound-absorbing mortar or clay composition or sound-absorbing concrete composition; A sound-absorbing block (sound-absorbing concrete brick, sound-absorbing concrete block, sound-absorbing concrete or clay panel) is provided by applying a sound-absorbing material to the outer surface of a block (brick or concrete) formed using cement mortar, clay mortar, or concrete mixture.
The present invention provides ready-mix concrete with an inherent sound-absorbing function by mixing sound-absorbing materials with cement mortar or clay mortar at a certain ratio to form a sound-absorbing mortar or clay composition, and can be used in construction (concrete walls and slabs); Blocks with an inherent sound-absorbing function (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) can be manufactured using sound-absorbing mortar or clay composition and used in construction; Sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks) formed using sound-absorbing (mortar or clay) mortar compositions or sound-absorbing concrete compositions, and blocks formed using cement mortar, clay mortar, or concrete mixtures (bricks, concrete, and panels). By applying a sound-absorbing material to the outer surface, blocks with an inherent sound-absorbing function (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) can be used in construction; By utilizing sound-absorbing mortar or clay composition and sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) when constructing a building, it is possible to construct and install a building with a fundamental sound-absorbing function.

Description

Sound-absorbing concrete composition, sound-absorbing block using the same, and sound-absorbing block coated with sound-absorbing material {A acoustic absorption type concrete composition and A acoustic absorption type brick used of it and A acoustic absorption type brick}

The present invention relates to a sound-absorbing concrete composition obtained by mixing a sound-absorbing material with mortar, a sound-absorbing block formed using the same, and a sound-absorbing block coated with a sound-absorbing material.

To explain this in more detail, a sound-absorbing mortar or clay composition made by mixing cement or clay with sand and water in a certain ratio and a sound-absorbing material in a certain ratio to cement mortar or clay mortar; A sound-absorbing concrete composition made by mixing a sound-absorbing material in a certain ratio with a concrete mixture of cement, sand, gravel, and water in a certain ratio; A sound-absorbing block (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) formed in a normal shape and shape using the sound-absorbing mortar or clay composition or sound-absorbing concrete composition; The aim is to provide a sound-absorbing block (sound-absorbing concrete brick, sound-absorbing concrete block, sound-absorbing concrete or clay panel) made by applying a sound-absorbing material to the outer surface of a block (brick or concrete) formed using cement mortar, clay mortar or concrete mixture.

Cement or clay mortar compositions made by mixing cement or clay with sand and water in a certain ratio are used when constructing buildings or construction structures or when manufacturing bricks or blocks.

In addition, a concrete composition made by mixing cement, sand, gravel, and water in a certain ratio is a composition used in the construction of buildings or construction structures, and is poured by directly mixing cement, sand, gravel, and water at a building or construction site. ) or when constructing by transporting the concrete composition in a transport vehicle such as ready-mix concrete and pouring it.

Such cement or clay mortar compositions and concrete compositions, as well as bricks, blocks, and concrete compositions manufactured using them, do not have the sound-absorbing ability to absorb and extinguish sound (noise) on their own, so buildings or construction structures are used on internal and external walls or Additional facilities such as soundproof wallpaper had to be installed indoors.

As an improvement over the above-described conventional compositions (cement or clay mortar compositions and concrete compositions), Korean Patent Registration No. 10-1050059 (Concrete composition with air purifying function) has been proposed.

The above registered patent No. 10-1050059 (Concrete composition with air purifying function) is a concrete composition formed by mixing cement, water, sand, gravel, and admixture with a pore former (activated carbon with a particle size of 0.001 to 0.15 mm). It is made by adding and mixing a functional catalyst (titanium phosphate air catalyst), which merely forms pores with activated carbon, so noise flows in through the pores and is partially extinguished inside the molded concrete.

Blocks (concrete or viscous bricks, concrete or clay blocks, concrete or clay panels) using conventional compositions (cement or clay mortar compositions and concrete compositions) are registered in Patent No. 10-0346230 (concrete panels and manufacturing methods thereof), Registered Patent No. 10-0543568 (functional brick and its manufacturing method), Registered Patent No. 10-1838234 (polyurethane concrete composite), Registered Utility Model No. 20-0346650 (building blocks and bricks), Registered Utility Model No. 20 -0403896 (non-combustible block for sound insulation), published patent no. 10-2001-0000849 (sound-absorbing brick block), etc. are proposed.

In the above-mentioned Patent No. 10-0346230 (Concrete Panel and its Manufacturing Method), the exterior is manufactured by mixing mortar with color cement and putting the color mortar into a mold and pattern frame, and pouring general concrete on the surface of the exterior. It is formed as a whole.

Registration Patent No. 10-0543568 (Functional brick and its manufacturing method) is made by repeatedly forming ‘ㄱ’-shaped or ‘ㄴ’-shaped spaces inside the brick, overlapping up and down.

Registration Patent No. 10-1838234 (polyurethane concrete composite) is a mixture of a cement mattress and a solid polyurethane matrix to attenuate external vibration and noise.

Registered Utility Model No. 20-0346650 (Building Blocks and Bricks) is created by forming holes (large holes and small holes) in blocks and bricks formed in predetermined shapes and shapes using cement or red clay so that they communicate up and down. .

Registered Utility Model No. 20-0403896 (non-combustible block for soundproofing) is a non-combustible block with grooves formed on the top and bottom, and one or more openings are formed on the sides.

Publication Patent No. 10-2001-0000849 (sound-absorbing brick block) is made by mixing sawdust with clay and pumice, firing a brick block into a predetermined shape, and burning the sawdust to form a space inside the brick block.

However, these are not mixed with or covered with sound-absorbing materials that absorb noise from the outside, and the noise is passively destroyed by simply changing its shape, so the noise effect is significantly reduced.

The present invention is intended to provide an improved sound-absorbing concrete composition to solve the above problems and disadvantages, a sound-absorbing block using the same, and a sound-absorbing block coated with a sound-absorbing material.

The present invention is a sound-absorbing mortar or clay composition prepared by mixing cement or clay with sand and water at a certain ratio and a sound-absorbing material at a certain ratio into cement mortar or clay mortar; A sound-absorbing concrete composition made by mixing a sound-absorbing material in a certain ratio with a concrete mixture of cement, sand, gravel, and water in a certain ratio; A sound-absorbing block (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) formed in a normal shape and shape using the sound-absorbing mortar or clay composition or sound-absorbing concrete composition; The purpose is to provide a sound-absorbing block (sound-absorbing concrete brick, sound-absorbing concrete block, sound-absorbing concrete or clay panel) made by applying a sound-absorbing material to the outer surface of a block (brick or concrete) formed using cement mortar, clay mortar, or concrete mixture. there is.

Another object of the present invention is to provide ready-mix concrete with an inherent sound-absorbing function by mixing sound-absorbing materials with cement mortar or clay mortar at a certain ratio to form a sound-absorbing mortar or clay composition and to use it in construction (concrete walls and slabs). can; Blocks with an inherent sound-absorbing function (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) can be manufactured using sound-absorbing mortar or clay composition and used in construction; Sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks) formed using sound-absorbing (mortar or clay) mortar compositions or sound-absorbing concrete compositions, and blocks formed using cement mortar, clay mortar, or concrete mixtures (bricks, concrete, and panels). By applying a sound-absorbing material to the outer surface, blocks with an inherent sound-absorbing function (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) can be used in construction; By utilizing sound-absorbing mortar or clay composition and sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) when constructing a building, it is possible to construct and install a building with a fundamental sound-absorbing function.

The above other objects of the present invention are,

In cement mortar or clay mortar mixed with sand and water in cement or clay at a certain ratio,

A sound-absorbing (cement or clay) mortar composition, characterized in that the cement mortar or clay mortar is mixed with a sound-absorbing material at a certain ratio;

In a concrete mixture of cement, sand, gravel, and water mixed in a certain ratio,

A sound-absorbing concrete composition, characterized in that the sound-absorbing material is mixed with the concrete mixture at a certain ratio;

Sound-absorbing blocks (sound-absorbing cement or clay bricks and sound-absorbing concrete or clay blocks) formed into normal shapes and shapes using the sound-absorbing (cement or clay) mortar composition or sound-absorbing concrete composition;

In blocks (bricks and concrete) formed using cement mortar, clay mortar, or concrete mixture,

This is achieved by a sound-absorbing block (sound-absorbing brick and sound-absorbing concrete), which is characterized by applying a sound-absorbing material to the outer surface of the block (brick and concrete).

The improved sound-absorbing concrete composition according to the present invention, a sound-absorbing block using the same, and a sound-absorbing block coated with a sound-absorbing material include;

A sound-absorbing mortar or clay composition made by mixing cement or clay with sand and water in a certain ratio and a sound-absorbing material in a certain ratio to cement mortar or clay mortar; A sound-absorbing concrete composition made by mixing a sound-absorbing material in a certain ratio with a concrete mixture of cement, sand, gravel, and water in a certain ratio; A sound-absorbing block (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) formed in a normal shape and shape using the sound-absorbing mortar or clay composition or sound-absorbing concrete composition; A sound-absorbing block (sound-absorbing concrete brick, sound-absorbing concrete block, sound-absorbing concrete or clay panel) is provided by applying a sound-absorbing material to the outer surface of a block (brick or concrete) formed using cement mortar, clay mortar, or concrete mixture.

The present invention provides ready-mix concrete with an inherent sound-absorbing function by mixing sound-absorbing materials with cement mortar or clay mortar at a certain ratio to form a sound-absorbing mortar or clay composition, and can be used in construction (concrete walls and slabs); Blocks with an inherent sound-absorbing function (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block, sound-absorbing concrete or clay panel) can be manufactured using sound-absorbing mortar or clay composition and used in construction; Sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks) formed using sound-absorbing (mortar or clay) mortar compositions or sound-absorbing concrete compositions, and blocks formed using cement mortar, clay mortar, or concrete mixtures (bricks, concrete, and panels). By applying a sound-absorbing material to the outer surface, blocks with an inherent sound-absorbing function (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) can be used in construction; By utilizing sound-absorbing mortar or clay composition and sound-absorbing blocks (sound-absorbing concrete bricks, sound-absorbing concrete blocks, sound-absorbing concrete or clay panels) when constructing a building, it is possible to construct and install a building with a fundamental sound-absorbing function.

Figure 1 is a process diagram showing the process of forming a sound-absorbing mortar or clay composition and a sound-absorbing block (sound-absorbing concrete or viscous brick, sound-absorbing concrete or clay block) according to the present invention.
Figure 2 is a process diagram showing the process of forming a sound-absorbing concrete composition and a sound-absorbing block (sound-absorbing concrete brick or sound-absorbing concrete block) according to the present invention.
Figures 3a and 3b are perspective views showing sound-absorbing concrete or clay bricks and sound-absorbing concrete or clay blocks formed by the sound-absorbing (cement or clay) mortar composition according to the present invention.
Figures 4a and 4b are perspective views showing sound-absorbing concrete bricks and sound-absorbing concrete blocks formed by the sound-absorbing concrete composition according to the present invention.
Figure 5 is a perspective view showing a concrete brick coated with a sound-absorbing material according to the present invention.
Figure 6 is a perspective view showing a concrete block coated with sound-absorbing material according to the present invention.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the attached drawings.

1 to 6 show specific implementation examples of the present invention.

Figure 1 is a process diagram (1:1-1) showing the molding process of the sound-absorbing mortar or clay composition 30 and the sound-absorbing block (sound-absorbing concrete or viscosity brick, sound-absorbing concrete or clay block) according to the present invention, and Figure 2 is This is a process diagram (1:1-2) showing the process of forming the sound-absorbing concrete composition 50 and the sound-absorbing block (sound-absorbing concrete brick or sound-absorbing concrete block) according to the present invention.

3A and 3B show sound-absorbing concrete or clay bricks (100:100-1) and sound-absorbing concrete or clay blocks (200:200-1) formed by the sound-absorbing (cement or clay) mortar composition 30 according to the present invention. It is a perspective view showing, and Figures 4a and 4b are perspective views showing a sound-absorbing concrete brick (100:100-2) and a sound-absorbing concrete block (200:200-2) formed by the sound-absorbing concrete composition 50 according to the present invention. .

Figures 5 and 6 are perspective views showing a sound-absorbing material-coated concrete brick (100:100-3) and a sound-absorbing material-coated concrete block (200:200-3) according to the present invention.

Figures 1 and 2 are process diagrams (1) for forming a sound-absorbing brick or block according to the present invention.

Referring to the sound-absorbing mortar/clay composition and sound-absorbing block forming process diagram (1-1) according to the present invention illustrated in Figure 1, the sound-absorbing mortar or clay composition (30) and sound-absorbing block (sound-absorbing concrete) or viscosity brick (100: 100-1), describes the forming process of sound-absorbing concrete or clay block (200:200-1)).

Sand (3) was mixed in an appropriate ratio with cement or clay (2) and water (5) was added and mixed to form a normal mortar (10), and a sound-absorbing material (20) was added to the mortar (10) and mixed. Thus, a sound-absorbing mortar or clay composition (30) was formed.

The sound-absorbing material 20 added to the mortar 10 was added in an amount of 0.5 to 3 kg per 20 kg (1 bag) of cement used when manufacturing the mortar 10 to maximize the sound-absorbing effect.

The sound-absorbing material (20) added to the mortar (10) includes a paint composition capable of blocking noise in patent registration No. 10-0840891, which was developed and pre-registered by the author, and a noise-absorbing powder paint composition and registration in patent registration No. 10-0963656. Examples include the multi-functional composition of Patent No. 10-2139231, and any one of them is added and mixed.

A sound-absorbing concrete or clay brick as illustrated in Figure 3a, which is made into a normal shape and size using the sound-absorbing mortar or clay composition (30) prepared by the above process and mixed with a sound-absorbing material (20:21). (100:100-1) was molded, or a sound-absorbing concrete or clay block (200:200-1) as illustrated in Figure 3b was molded.

Referring to the sound-absorbing concrete composition and sound-absorbing block forming process diagram (1-2) according to the present invention illustrated in Figure 2, the sound-absorbing concrete composition (50) and sound-absorbing block (sound-absorbing concrete brick (100:100-2), sound-absorbing concrete The forming process of the block (200:200-2)) is described.

Sand (3) and gravel (4: lightweight aggregate) were mixed in an appropriate ratio with cement (2), and water (5) was added and mixed to form a normal concrete composition (40), and the concrete composition (40) absorbed sound. The material (20) was added and mixed to form a sound-absorbing concrete composition (50).

The sound-absorbing material 20 added to the concrete composition 40 was added in an amount of 0.5 to 3 kg per 20 kg (1 bag) of cement used when manufacturing the concrete composition 40 to maximize the sound-absorbing effect.

The sound-absorbing material (20) added to the concrete composition (40) includes a paint composition capable of blocking noise as developed and pre-registered by the author in Patent No. 10-0840891, a noise-absorbing powder paint composition as in Registered Patent No. 10-0963656, and Examples include the multi-functional composition of Patent No. 10-2139231, and any one of them is added and mixed.

A sound-absorbing concrete brick (100:100) as illustrated in FIG. 4A is made into a normal shape and size using the sound-absorbing concrete composition (50) prepared by the above process and mixed with a sound-absorbing material (20:21). -2) was manufactured by molding, or a sound-absorbing concrete block (200:200-2) as illustrated in Figure 4b was manufactured by molding.

Figures 5 and 6 are perspective views showing a sound-absorbing material-coated concrete brick (100:100-3) and a sound-absorbing material-coated concrete block (200:200-3) according to the present invention.

Ordinary mortar (10) or cement (2) made by mixing sand (3) with cement (2: or clay) in an appropriate ratio and adding water (5), sand (3) and gravel (4: and lightweight The outer surface of the brick body (110) or block body (210) formed using a typical concrete composition (40) made by mixing aggregate) in an appropriate ratio and adding water (5), preferably absorbs sound on the front and back surfaces. The material layer 22 was applied (laminated) to form sound-absorbing material-coated concrete bricks (100:100-3) and sound-absorbing material-coated concrete blocks (200:200-3).

The sound-absorbing material applied (laminated) to the outer surface of the brick body 110 or block body 210 is a noise-blocking paint composition developed by the applicant and pre-registered under Patent Registration No. 10-0840891, Registered Patent No. 10. Examples include the noise-absorbing powder paint composition of No. 0963656 and the multi-functional composition of Patent No. 10-2139231, and any one of these is maintained at a predetermined thickness (d1, d2), preferably 0.2 to 3.0 mm. Sufficient sound absorption effect was achieved.

Since the sound-absorbing mortar or clay composition 30 or the sound-absorbing concrete composition 50 according to the present invention as described above contains a sound-absorbing material 20, when a building such as a wall of an object is built using this, the building itself is exposed to the outside. It is possible to construct a building that has a sound-absorbing function that absorbs and dissipates sound, and thus the interior of the completed building can maintain a quiet atmosphere without noise or external noise.

In addition, the sound-absorbing mortar or clay composition 30 or the sound-absorbing concrete composition 50 according to the present invention as described above includes sound-absorbing concrete or clay bricks (100:100-1) manufactured by molding using the sound-absorbing material 20, Sound-absorbing concrete or clay block (200:200-1), sound-absorbing concrete brick (100:100-2), and sound-absorbing concrete block (200:200-2) contain sound-absorbing material (20) inside the brick or block. Since they can perform the function of extinguishing incoming noise, when a building is constructed using them or the interior is constructed separately, the building or structure itself has a sound-absorbing function in which external sound absorption (noise) is absorbed and extinguished. It becomes possible to construct and install structures, and thus the interior of completed buildings and structures can maintain a quiet atmosphere without noise or external noise.

Although the present invention has been described in detail only with respect to the specific examples described, it is obvious to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

1: Sound-absorbing brick or block molding process diagram.
1-1: Sound-absorbing mortar/clay composition and sound-absorbing block molding process diagram.
1-2: Sound-absorbing concrete composition and sound-absorbing block molding process diagram
10: Mortar 20: Sound-absorbing material
30: Sound-absorbing mortar or clay composition
40: Concrete composition 50: Sound-absorbing concrete composition
100: Sound-absorbing brick 100-1: Sound-absorbing concrete or clay brick 100-2: Sound-absorbing concrete brick 100-3: Sound-absorbing material-coated concrete brick
110: brick body 200: sound-absorbing block
200-1: Sound-absorbing concrete or clay block
200-2: Sound-absorbing concrete block 200-3: Sound-absorbing material-coated concrete block 210: Block body

Claims (15)

In cement mortar or clay mortar where sand (3) and water are mixed in a certain ratio with cement or clay (2);
A sound-absorbing mortar composition, characterized in that the sound-absorbing material (20) is mixed at a certain ratio with the cement mortar or clay mortar.
In the concrete composition (40) in which cement and sand (3) and gravel and water (5) are mixed in a certain ratio;
A sound-absorbing concrete composition, characterized in that the sound-absorbing material (20) is mixed with the concrete composition (40) at a certain ratio.
A product formed using the sound-absorbing mortar composition prepared according to claim 1 into any one of sound-absorbing cement bricks, sound-absorbing clay bricks, sound-absorbing concrete blocks (200-2), and sound-absorbing clay blocks; A sound-absorbing block characterized by .
Formed into a sound-absorbing concrete brick (100-2) or a sound-absorbing concrete block (200-2) using the sound-absorbing concrete composition (50) prepared according to claim 2; A sound-absorbing block characterized by .
The method according to claim 1 or 2, wherein the sound-absorbing material (20) added and mixed with cement mortar or clay mortar;
Add 0.5 to 3.0 kg per 20 kg of cement; A sound-absorbing mortar composition characterized by:
The method according to claim 2, wherein the sound-absorbing material (20) added and mixed into the concrete composition (40) is;
Add 0.5 to 3.0 kg per 20 kg of cement; A sound-absorbing concrete composition characterized by:
The method according to claim 5, wherein the sound-absorbing material (20) added and mixed into the cement mortar or clay mortar composition is;
Any one of the noise-blocking paint composition developed and pre-registered by me in Patent No. 10-0840891, the noise-absorbing powder paint composition in Patent No. 10-0963656, and the multi-functional composition in Patent No. 10-2139231. thing; A sound-absorbing mortar composition characterized by:
The method of claim 6, wherein the sound-absorbing material (20) added and mixed into the concrete composition (40) is;
Any one of the noise-blocking paint composition developed and pre-registered by me in Patent No. 10-0840891, the noise-absorbing powder paint composition in Patent No. 10-0963656, and the multi-functional composition in Patent No. 10-2139231. thing; A sound-absorbing concrete composition characterized by:
In blocks (bricks and concrete) formed using cement mortar or clay mortar compositions;
A sound-absorbing material is applied to the outer surface of the block (brick and concrete) at a certain thickness (d1, d2) to form a sound-absorbing brick or a sound-absorbing block; A sound-absorbing block characterized by .
The method of claim 9, wherein the thickness (d1, d2) of the sound-absorbing material applied to the outer surface of the block (brick and concrete) is;
0.2 to 3.0 mm; A sound-absorbing block characterized by .
The method of claim 9, wherein the sound-absorbing material 20 applied to the outer surface of the block (brick and concrete) is;
Any one of the noise-blocking paint composition developed and pre-registered by me in Patent No. 10-0840891, the noise-absorbing powder paint composition in Patent No. 10-0963656, and the multi-functional composition in Patent No. 10-2139231. thing; A sound-absorbing block characterized by .
In the mortar composition step of mixing cement or clay (2) with sand (3) and water at a certain ratio to form cement mortar or clay mortar;
A sound-absorbing (cement or clay) mortar composition composition step of mixing the sound-absorbing material 20 at a certain ratio with the cement mortar or clay mortar obtained in the mortar composition step;
Consisting of a molding step of molding into a normal brick or block using the sound-absorbing (cement or clay) mortar composition obtained in the sound-absorbing (cement or clay) mortar composition composition step; A method of manufacturing a sound-absorbing brick, characterized by:
In the concrete composition composition step of mixing cement with sand (2), gravel (4), and water (5) at a certain ratio;
A sound-absorbing concrete composition composition step of mixing sound-absorbing material 20 at a certain ratio with the concrete composition 40 obtained in the concrete composition composition step;
Consisting of a molding step of molding the concrete composition (40) obtained in the sound-absorbing concrete composition composition step into a normal brick or block; A method of manufacturing a sound-absorbing brick, characterized by:
The method according to claim 12 or claim 13, wherein the sound-absorbing material (20) added and mixed in the sound-absorbing (cement or clay) mortar composition composition step or the sound-absorbing concrete composition composition step;
Adding 0.5 to 3.0 kg per 20 kg of cement; A method of manufacturing a sound-absorbing brick, characterized by:
The method according to claim 12 or claim 13, wherein the sound-absorbing material (20) added and mixed in the sound-absorbing (cement or clay) mortar composition composition step or the sound-absorbing concrete composition composition step;
Any one of the noise-blocking paint composition developed and pre-registered by me in Patent No. 10-0840891, the noise-absorbing powder paint composition in Patent No. 10-0963656, and the multi-functional composition in Patent No. 10-2139231. thing; A method of manufacturing a sound-absorbing brick, characterized by:

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