KR20070072370A - Sound-proof wall - Google Patents

Abstract

A soundproofed wall is provided to maintain the long-term stiffness of a sound absorbing layer unlimitedly and to set a sound absorbing channel of a sound absorbing layer exactly by the absorbed sound. The soundproofed wall comprises a structural wall plate(1) made with concrete, a sound absorbing layer(2) made with ceramics and composed of spherical heat expansion clay materials having uniform particles and couplers, and a profile unit(4) formed on the surface(3) of the sound absorbing layer and composed of ribs(5) and depressions(6), hereon the couplers are formed on the surface of the heat expansion clay materials in layers, a sound absorbing channel is placed between the heat expansion clay materials, and an outer sound absorbing layer is formed by the ribs and an inner sound absorbing layer is formed by the remaining part to have relatively uniform, but different sized particles.

Description

Soundproof Walls {SOUND-PROOF WALL}

1 is a cross-sectional view of a wall plate made of concrete having ribbed outer surfaces;

2 is an enlarged partial cross-sectional view of the microstructure of the outer surface;

3 and 4 are cross-sectional views of two embodiments of an outer surface.

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

1: structural wall board

2: sound absorption layer

3: surface

4: profile part

5: rib

6: depression

7: expanded clay body

8: combining means

9: layer

10: surface

11: sound absorption channel

12: outer sound absorbing layer

13: inner sound absorbing layer

14: rib tip

The present invention relates to a soundproof wall having a structural wall plate made of structural concrete and a ceramic outer surface which is a sound absorbing layer.

Soundproof walls consisting of wood shavings in which the sound absorbing layer is surrounded by concrete are known.

A disadvantage with these known sound barriers is that the long-term stiffness of the sound absorbing layer is damaged by the continuous humidity change of the splint, which is surrounded by concrete. In addition, the sizes of the interspaces between the splints are very different, so that the sound absorption channels formed by the interspaces may not be suitable for the sound being absorbed or at least only minimally.

It is an object of the present invention to avoid the above known disadvantages, to make known sound barriers in which the long-term stiffness of the sound absorbing layer remains substantially unlimited in nature.

In addition, the sound absorbing channel of the sound absorbing layer should be able to be tailored very accurately to the sound being absorbed.

 This object is achieved by claims 1 and 7 of the present application. Advantageous embodiments are disclosed in the dependent claims.

The sound barrier comprises a structural wall plate made of structural concrete, a ceramic outer surface which is a sound absorbing layer, and the like. The surface of the sound absorbing layer may be provided with a profile portion. The profile part may for example consist of a rib and a recess located therebetween. The essential components of the sound absorbing layer are heat expanding clay bodies and bonding means.

The whole part of the expanded clay body has uniform particles.

Due to technical and economic reasons, completely uniform particles are very difficult to obtain, so the proportion of expanded clay bodies of different sizes in the sound absorbing layer is limited to a maximum of 20%.

The expanded clay body is spherical.

The coupling means is formed by containing concrete or made of synthetic resin or the like.

The coupling means is arranged in layers on the surface of the expanded clay body, so that a sound absorbing channel exists between the expanded clay bodies.

The sound absorbing layer may be formed in multiple layers.

Wherein each sound absorbing layer has particles that are relatively uniform but of different sizes.

The outer sound absorbing layer is made of a mixture having smaller particles than the inner sound absorbing layer. The outer sound absorbing layer can have greater stiffness because more bonding means have to be used when smaller expanded clay bodies are used.

However, it is also possible that only the rib tip or other protruding corners or edges consist of a mixture with smaller particles.

In the method for producing a sound barrier according to the invention, the amount of bonding means and in particular of the bonding means is adapted to the expanded clay body or particles of the expanded clay body.

Since the binding means must be arranged as a layer on the surface of the expanded clay body, the total amount of the binding means depends on the particles of the expanded clay body. The smaller the particle size, the larger the total surface area of all spherical expanded clay bodies per unit volume. Since the bonding means is the most expensive component of the sound absorbing layer, the manufacturing cost when using expanded clay bodies having small particle size becomes higher than when the particle size is large. Therefore, it is very important for cost reasons that the amount of binding means is adjusted to the particle size of the expanded clay body. For the same reason, the tolerances of the expanded clay body, in particular the particle size, need to be kept relatively small.

When the size of the expanded clay body is large, the space between the sound absorbing channels is also larger than when the size of the expanded clay body is small. Small sound absorption channels have better sound absorption performance at higher tones, while large sound absorption channels better absorb lower tones. Therefore, it is equally important to match the particle size of the expanded clay body to the sound to be absorbed.

The selected particle size of the expanded clay body can be met by sintering the granules after sintering the granules.

However, it is also possible that the selected particle size of the expanded clay body is already met by allowing the expanded clay to be correspondingly granular before sintering.

If the expanded clay body is formed in a spherical shape, the amount of coupling means and the size of the sound absorbing channel can be maintained relatively accurately, since the body part of the expanded clay body cannot be moved into the sound absorbing channel when compressing the sound absorbing layer. to be.

In particular, with the structure of the sound insulation wall according to the invention comprising a sound absorbing layer formed in multiple layers, the sound insulation wall can be tailored very accurately to the sound being absorbed. As another advantage, the rib tip or the protruding corner portion or the corner portion can be manufactured to have a large rigidity, and the manufacturing cost can be reduced since only the coupling means necessary for the rigidity of the sound absorbing layer should be used. The sound absorbing channel is not reduced in size or blocked by redundant coupling means.

Embodiments according to the invention are described in more detail by way of example below.

As shown in Figs. 1, 3 and 4, the sound barrier consists of a ceramic outer surface which is a structural wall plate 1 and a sound absorbing layer 2 made of structural concrete. The surface 3 of the sound absorbing layer 2 is provided with a profile portion 4. The profile part 4 consists of a rib 5 and a recess 6 located therebetween. The essential components of the sound absorbing layer 2 are the heat expanding clay body 7 and the coupling means 8.

The whole part of the expanded clay body 7 has uniform particles, which is shown in the enlarged cross-sectional view of FIG.

The expanded clay body 7 is formed in a spherical shape.

The coupling means 8 are arranged in layers 9 on the surface 10 of the expanded clay body 7, with sound absorbing channels 11 between the expanded clay bodies 7.

The sound absorbing layer 2 can also be formed in multiple layers, which are shown in FIGS. 3 and 4.

Here, each of the sound absorbing layers 12 and 13 has particles that are relatively uniform but differ in size.

The outer sound absorbing layer 12 is made of a mixture having smaller particles than the inner sound absorbing layer 13.

However, it is also possible for the rib tip 14 or other protruding corners or edges only to consist of a mixture with smaller particles, which is shown in FIG.

Since the bonding means 8 must be arranged as a layer 9 on the surface 10 of the expanded clay body 7, the total amount of the bonding means 8 depends on the particle size of the expanded clay body 7. Follow. The smaller the particle size, the larger the total surface area of all spherical expanded clay bodies 7 per unit volume.

According to the present invention, the long-term stiffness of the sound absorbing layer is kept substantially constant indefinitely, and the sound absorbing channel of the sound absorbing layer can be tailored very accurately to the sound absorbed.

Claims (11)

In a soundproof wall comprising a structural wall plate (1) made of structural concrete and an outer surface which is a sound absorbing layer (2), the sound absorbing layer (2) comprising a heating expanded clay body (7) and a joining means (8), Soundproof wall, characterized in that the whole part of the expanded clay body (7) has uniform particles. The method of claim 1, The outer surface is a ceramic outer surface, and / or in particular The proportion of expanded clay bodies 7 of different sizes on the outer surface is at most 20%, and / or in particular, Rigid clay body (7) is a soundproof wall, characterized in that formed in a spherical (spherical). The method according to claim 1 or 2, The coupling means (8) is formed by containing concrete, or the coupling means (8) characterized in that the sound barrier made of a synthetic resin. The method according to any one of claims 1 to 3,  The coupling means 8 are arranged in layers 9 on the surface 10 of the expanded clay body 7, with sound absorbing channels 11 between the expanded clay bodies 7, and / or Or especially There is a coupling means 8 required for the stiffness of the sound absorbing layer 2, and the sound absorbing channel 11 between the expanded clay bodies 7 is not reduced or blocked through the excess coupling means 8. Soundproof wall characterized in that not. The method according to any one of claims 1 to 4, The sound absorbing layer 2 is formed in multiple layers, and / or in particular The sound absorbing layer 2 comprises a profile part 4 with a rib 5 and a recess 6 positioned therebetween, and / or in particular In the profile part (4), the ribs (5) form an outer sound absorbing layer (12), and the remaining part forms an inner sound absorbing layer (13). The method according to any one of claims 1 to 5, The sound absorbing layers 12, 13 each comprise uniform but different sizes of particles, and / or in particular The outer sound absorbing layer 12 has smaller particles than the inner sound absorbing layer 13, and / or in particular Soundproof wall, characterized in that the rib tip (14) or only the protruding corners or corners are made of a mixture having smaller particles. In the manufacturing method of the soundproof wall in any one of Claims 1-6, Method for producing a sound barrier, characterized in that the expanded clay body (7) and the coupling means (8) are fitted to each other. The method of claim 7, wherein The particle size of the expanded clay body 7 or the amount of particles and binding means 8 are matched with respect to each other, in particular by means of the use of only the binding means 8 which are necessary for the rigidity of the sound absorbing layer 2. The sound absorbing channels 11 between the expanded clay bodies 7 are not reduced or blocked through excess coupling means 8, and / or in particular The tolerance of the particles, in particular the proportion of clay bodies 7 of different sizes, for uniform particle size, is maintained at up to 20%, and / or in particular The particle size of the expanded clay body (7) is adapted to the sound being absorbed, and in particular, by making the expanded clay body (7) larger, the tone of the absorbed sound is lowered. The method according to claim 7 or 8, The selected particle size of the expanded clay body 7 is met by sintering the expanded clay after sintering granules, and / or in particular The selected particle size of the expanded clay body 7 is already satisfied when the expanded clay is present in granular form before sintering, and / or in particular The sound absorbing layer channel 11 of the sound absorbing layer 2 is formed relatively uniformly, in particular through a relatively uniform, particularly spherical structure of the expanded clay body 7. How to make. The method according to any one of claims 7 to 9, The sound absorbing layer 2 is formed in multiple layers, and / or in particular The sound absorbing layer 2 is provided with a profile part 4, which profile part 4 has a rib 5 and a recess 6 located therebetween, and / or in particular The sound-absorbing layer (12, 13) is a method of manufacturing a sound barrier, characterized in that it is made of a mixture having particles that are relatively uniform in each layer but different in size in each layer. The method of claim 10, The outer sound absorbing layer 12 is made to have smaller particles than the inner sound absorbing layer 13, and / or in particular The rib 5 is fabricated as an outer sound absorbing layer 12, the remainder of the sound absorbing layer 2 is fabricated as an inner sound absorbing layer 13, and / or in particular And the rib tip (14) or the protruding corners or corners are made of a mixture having smaller particles.

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