KR101460319B1 - Noise proof structure and construction method thereof - Google Patents

Abstract

The present invention relates to an inter-story noise prevention structure and a construction method thereof. More specifically, the inter-story noise prevention structure is formed by sequentially stacking a first foam layer, a PU foam layer, a first mixture layer filled with inorganic materials in a lattice-like PU foam body, a second foam body, and a second mixture layer made of a PVC plate, pipes, and scoria mortar between a concrete slab and a flooring material and installing a sponge layer on the wall. Accordingly, the present invention can use the second mixture layer and the second foam layer, and the first mixture layer, then the PU foam layer to reduce the inter-story noises due to the impact applied on a floor. Then, the present invention uses the first foam layer to get rid of the remaining noises. Accordingly, the present invention can reduce and get rid of the inter-story noises and vibration in four phases to ensure excellent noise prevention performance while also removing the horizontal waves of the vibration by using the sponge layer installed on the wall.

Description

TECHNICAL FIELD [0001] The present invention relates to a noise preventing structure,

The present invention relates to a method for producing a composite material comprising a first styrofoam layer, a PU (polyurethane) foam layer, a first mixed layer, a second styrofoam layer and a PVC layer filled with a porous inorganic material in a grid type PU foam between a concrete slab and a bottom finishing material, The present invention relates to an interlayer noise preventing structure and a method of constructing the same, which are constructed by laminating a polyvinylchloride plate, a second mixed layer composed of piping and scoria mortar, and a sponge layer on a wall surface.

Generally, in apartment buildings and similar buildings, the floor noise is transmitted to the lower floor due to the structural characteristics of floor and wall, and these impact sounds are usually divided into light impact sound and heavy impact sound.

Here, the light impact sound mainly refers to the noise generated when the object falls, and the heavy impact sound refers to the noise generated when the human is running. Such an impact sound is generated when the impact applied to the floor structure of the upper layer is transmitted to the slab or the wall by vibration It is emitted as noise in the lower layer, which is called 'interlayer noise'.

In recent years, due to the changes in the housing culture due to the improvement of income level, the floor noise, which belonged to the category of "concession and understanding" which is an oriental virtue, has been defined as "damage" under the recognition of the rights of tenants. In the case of building apartments such as apartments from May, the standard is set so that light impact sound is less than 58dB and heavy impact sound is less than 50dB.

Accordingly, various research and development have been conducted in order to reduce the interlayer noise as described above, and Patent Documents 1 to 3 are related prior arts.

Specifically, in Patent Document 1, as shown in FIG. 1, a lowermost first fibrous material layer 110 made of a synthetic resin material and a second fibrous material layer 110 made of a synthetic resin material are laminated on the first fibrous material layer 110, A second fibrous material layer 130 made of a synthetic resin laminated on the upper portion of the steric material mat layer 120 and a second fibrous material layer 130 A styrofoam 150 laminated on the third fiber material layer 140 and a shock absorbing sound insulating sheet 160 laminated on the styrofoam 150. The third fiber material layer 140 is made of synthetic resin, ) Is disclosed as a shock absorbing member for shock absorption.

In Patent Document 2, as shown in FIG. 2, the floor slab T1 is embedded between a foamed concrete T12 and a finished mortar T18 to reduce interlayer noise due to floor impact, Density layer T15 formed of a synthetic rubber vibration damping sheet and provided with an air layer T14 at a predetermined interval on the lower end thereof and then provided at the lower end with the high density layer T15 as a center, A multilayered structure is formed by thermocompression bonding a low-density layer (T17) composed of a middle density layer (T16) composed of a PE foam and a non-crosslinked PE foam.

3, a low density layer S20a and a high density layer S20b are formed in a structure for preventing an impact sound generated in an upper layer of a building from being transmitted to a lower layer, Sound absorbing means (S20) of a laminated structure made up of: A predetermined distance is formed between the plate portion and the lower portion of the plate portion integrally formed with the rod portion T31 inserted into the through hole S21 passing through the center of the sound absorbing means S20 and having the spiral portion formed therein A connecting means S30 formed by integrally forming a supporting plate S32; A sound absorbing material S40 which is brought into close contact with the receiving plate S32; A sound insulating plate S70 for blocking sound transmitted while supporting the sound absorbing material S40; A step is formed at the end of the rod portion which is threaded on the outer periphery so as to pass through the sound absorbing material S40 and the sound insulating plate S70 so as to be aligned with the spiral portion of the connecting means S30, A screw member S33 formed integrally therewith; And a rubber member (S60) having a groove into which a step of the screw member is inserted and coupled.

However, the above-described conventional techniques have problems in that the noise of the duck tongue becomes worse due to the resonance phenomenon in which the wavelength of the noise is amplified, the wavelength of the vibration transmitted to the wall can not be reduced, and the curing time is excessively consumed. There is a problem that the construction time and process are troublesome and the mortar of heavy load is transmitted to the column of the building and the load is doubled as it goes to the high floor, thereby shortening the life of the building.

Patent Document 1: Korean Utility Model Registration No. 20-0337780 entitled "Sound Insulation Member for Shock Absorption" Patent Document 2: Registered Utility Model No. 20-0312358 of Korea Registered "Laminated Structure of Layer-to- Patent Document 3: Korean Patent Registration No. 10-0653596 "Dry Type Multilayer Floating Structure for Reducing Noise between Apartment Houses"

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, wherein: FIG. 1 is a cross- A second mixed layer made of a PVC plate, a pipe and a scoria mortar, and a sponge layer provided on the wall surface, and a method of constructing the same.

The present invention relates to a structure for preventing noise between layers provided between a concrete slab (100) and a floor finishing material (200)

A first styrofoam layer 10 from the bottom; PU foam layer 20; A first mixed layer 30; A second styrofoam layer 40; And a second mixed layer 50 are stacked,

The first mixed layer 30 is formed by filling the porous inorganic material 32 in the grid-shaped PU foam 31,

The second mixed layer 50 has a structure in which a piping P is installed on the upper surface of the PVC plate 51 and a scoria mortar 52 is placed on the upper surface of the PVC plate 51 .

Here, it is preferable that a sponge layer 60 is provided on the side surface of the interlayer noise preventing structure.

The porous inorganic material used for the first mixed layer 30 is preferably made of scoria, pumice, char, or a combination of two or more thereof.

In the meantime, the present invention provides a method of constructing an interlayer noise-

A step (S100) of installing a sponge layer (60) on a wall surface (300) of a space to be installed;

Stacking the first styrofoam layer 10 on the upper surface of the concrete slab 100 (S200);

Stacking a PU foam layer 20 on the top surface of the first styrofoam layer (S300);

(S400) stacking the first mixed layer (30) on the upper surface of the PU foam layer (20);

Stacking a second styrofoam layer 40 on the upper surface of the first mixed layer 30 (S500);

Stacking a second mixed layer 50 on the upper surface of the second styrofoam layer 40 (S600); And

(S700) of laminating a floor finish material (200) on the upper surface of the second mixed layer (50). The present invention also provides a method of constructing an interlayer noise preventing structure.

Here, the step of stacking the first mixed layer 30 (S400)

After the PU foam 31 is installed in a lattice shape,

It is preferable that the porous inorganic material 32 is filled in the lattice inner space.

In addition, the step of stacking the second mixed layer 50 (S600)

After a pipe P is installed on the upper surface of the PVC plate 51,

It is preferable to cast the scoria mortar 52 and finish it semi-dryly.

The present invention is based on the fact that the present invention is applied to the interlayer noise due to the light weight and the heavy impact sound, firstly reduced in the second mixed layer and the second styrofoam layer, secondarily in the first mixed layer and thirdly in the PU foam layer, By removing from the first styrofoam layer, the effect of preventing noise between layers is excellent (about 45 dB or less) by reducing and eliminating the wavelength of vibration and the interlayer noise over four times.

Further, the sponge layer provided on the wall surface has the effect of being able to reduce and remove the wavelength of vibration transmitted horizontally and to the wall surface.

In addition, porous inorganic materials such as scoria (specific gravity 1.3), pumice (specific gravity 0.5), and charcoal (specific gravity 0.4 to 0.6) are used to reduce the load of pillars and overall buildings, It is effective.

In addition, the scoria mortar included in the second mixed layer releases anions and far-infrared rays to provide a pleasant environment.

In addition, since the thickness of the construction layer for preventing an interlayer noise can be applied to a thickness of 40 mm or more than a general construction layer on the basis of the above-mentioned excellent interlayer noise prevention effect, the effect of increasing the ceiling height of the inner living space by 40 mm .

In addition, when the first styrofoam layer, the PU foam layer, the first mixed layer, and the second styrofoam layer are formed into a single unit, the workability can be improved.

1 is a sectional view showing a structure for preventing an interlaminar noise according to Patent Document 1
2 is a cross-sectional view showing a structure for preventing an interlaminar noise according to Patent Document 2
3 is a cross-sectional view showing a structure for preventing an interlaminar noise according to Patent Document 3
4 is an exploded perspective view showing an interlayer noise preventing structure according to the present invention.
5 is a cross-sectional view showing the structure for preventing an interlayer noise according to the present invention
6 is a flowchart showing a construction method of an interlayer noise preventing structure according to the present invention.

In order to achieve the above-mentioned effects, the present invention relates to an interlayer noise preventing structure and a method of constructing the same, and only a part necessary for understanding the technical structure of the present invention will be explained, and the description of other parts will not be deviated from the gist of the present invention It will be omitted.

Hereinafter, the structure for preventing an interlayer noise according to the present invention and the construction method thereof will be described in detail.

As shown in FIGS. 4 and 5, between the concrete slab 100 and the bottom finishing material 200, the first styrofoam layer 10, the PU foam layer 10, A sponge layer 60 is formed on the side surface contacting with the wall surface 300. The sponge layer 60 is formed by laminating a first mixed layer 20, a first mixed layer 30, a second styrolo layer 40 and a second mixed layer 50, .

On the other hand, each layer is described in the order of stacking from the lower side in the above-mentioned structure, but the explanation for each layer below will be described from the upper layer according to the proceeding order of the interlayer noise.

The concrete slab 100, the flooring finishing material 200, and the wall surface 300 may be various materials and structures well known in the art to suit the purpose and design of the building, The description is omitted.

The second mixed layer 50 is for reducing the inter-layer noise primarily due to a light weight and a heavy impact sound. A pipe P interlocking with a boiler or the like is installed on the upper surface of the PVC plate 51, and a scoria mortar 52 are placed, and the thickness is 45 to 55 mm in total.

At this time, when the thickness of the second mixed layer 50 is less than 45 mm, there is a fear that the effect of reducing the interlayer noise is insufficient. When the thickness exceeds 55 mm, the overall thickness of the interlayer noise- There is a possibility that the effect of the present invention for increasing the ceiling height can not be realized.

The scoria mortar 52 has a scoria particle size of 0.3 mm to 1.0 mm and is obtained by mixing 480 to 520 kg of arctic cement and 280 to 320 liters of water in 1.1 cubic meters. Water or cement can be added or decreased according to the water content of scoria, It is characterized by a mixture of scoria in place of ordinary sand, which releases anions and far-infrared rays to provide a pleasant environment.

At this time, if the particle size and mixing weight ratio of the scoria mortar 52 are out of the above range, mortar may not be formed properly.

The second styrofoam layer 40, together with the second mixed layer 50, is primarily made of high-density styrofoam having a thickness of 5 to 15 mm for primarily reducing interlayer noise due to light weight and heavy impact sound.

If the thickness of the second styrofoam layer 40 is less than 5 mm, there is a fear that the effect of reducing the noise of the interlayer may be insufficient. If the thickness of the second styrofoam layer 40 is more than 15 mm, In addition, there is a fear that the effect of the present invention for increasing the ceiling height can not be realized.

The high-density styrofoam means styrofoam having a density range of 25 to 32 kg / m < 3 >, and if the density is out of the range, the effect of reducing the interlayer noise may be insufficient.

The first mixed layer 30 is for reducing the inter-layer noise due to the light weight and heavy impact sound. The PU foam 31 is installed in a lattice shape, and then the porous inorganic material 32 is filled in the lattice interior space And a total thickness of 15 to 25 mm.

At this time, if the thickness of the first mixed layer 30 is less than 15 mm, there is a fear that the effect of reducing the interlaminar noise is insufficient. If the thickness is more than 25 mm, the total thickness of the interlaminar noise- There is a possibility that the effect of the present invention for increasing the ceiling height can not be realized.

On the other hand, the PU foam 31 is a foam that is foamed using polyurethane as a base material, and is a well-known means in the art, and a foam having various known composition and composition ratios can be applied, and thus a detailed description thereof will be omitted.

The porous inorganic material is used in combination with scoria, pumice, or char, either alone or in combination with two or more of them. In addition, the efficiency of preventing interlayer noise is improved, and the scoria (specific gravity 1.3), pumice (specific gravity 0.5), charcoal ~ 0.6), the life of the building can be extended by reducing the load of the columns and the whole building.

The PU foam layer 20 is a PU foam having a thickness of 15 to 25 mm for the purpose of tertiary reduction of interlayer noise due to light weight and heavy impact sound.

At this time, when the thickness of the PU foam layer 20 is less than 15 mm, there is a fear that the effect of reducing the interlaminar noise becomes insufficient. When the thickness is more than 25 mm, the total thickness of the structure for preventing noise is increased, There is a possibility that the effect of the present invention for increasing the ceiling height can not be realized.

On the other hand, the PU foam is already known in the art as a foam obtained by foaming the polyurethane as a base material as described above, and a foam having various known composition and composition ratios can be applied. It is omitted.

The first styrofoam layer 10 is for removing residual noise with respect to the interlayer noise due to light weight and heavy impact sound quaternary, and is made of high-density styrofoam having a thickness of 5 to 15 mm.

At this time, if the thickness of the first styrofoam layer 10 is less than 5 mm, the effect of reducing the interlayer noise may be insufficient. If the thickness is more than 15 mm, the overall thickness of the interlayer noise- In addition, there is a fear that the effect of the present invention for increasing the ceiling height can not be realized.

The high-density styrofoam means styrofoam having a density range of 25 to 32 kg / m < 3 >, and if the density is out of the range, the effect of reducing the interlayer noise may be insufficient.

Therefore, according to the present invention, since the wavelength of the vibration and the interlayer noise are reduced and eliminated four times as described above, the interlayer noise prevention performance is excellent.

The sponge layer 60 is provided on a side surface contacting the wall surface 300 in the structure for preventing noise between layers and for reducing and eliminating the wavelength of vibration transmitted through the wall surface in the horizontal direction, It consists of a sponge.

At this time, when the thickness of the sponge layer 60 is less than 5 mm, there is a fear that the effect of reducing and eliminating the vibration transmitted through the wall surface is insufficient. When the thickness is more than 15 mm, So that not only the product price is increased but also the internal living space is reduced.

6, a method of installing a sponge layer 60 on a wall surface 300 of a space to be installed (S100), a concrete slab 100 (100) (S200) stacking a first styrofoam layer (10) on the upper surface of the first styrofoam layer (10); S300 (S300) stacking a PU foam layer (20) (S500) stacking a second styrofoam layer (40) on an upper surface of the first mixed layer (30), stacking a first mixed layer (30) on an upper surface of the first mixed layer A step S600 of laminating a second mixed layer 50 on the upper surface of the styrofoam layer 40 and a step S700 of laminating a floor finish material 200 on the upper surface of the second mixed layer 50 Construction.

In the step S400 of stacking the first mixed layer 30, the PU foam 31 is installed in a lattice shape, and then the porous inorganic material 32 is filled in the lattice interior space.

In the step S600 of stacking the second mixed layer 50, the pipe P is installed on the upper surface of the PVC plate 51, and the scoria mortar 52 is placed thereon, Finish it.

In this case, when the first styrofoam layer 10, the PU foam layer 20, the first mixed layer 30, and the second styrofoam layer 40 are formed into a single unit, the workability can be improved have.

The detailed description and the critical meaning of each layer have already been described in the structural description section, and a detailed description thereof will be omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. There will be.

10: first styrofoam layer 20: PU foam layer
30: first mixed layer 31: grid-like PU foam
32: porous inorganic material 40: second styrofoam layer
50: second mixed layer 51: PVC plate
52: scoria mortar 60: sponge layer
P: Piping 100: Concrete slab
200: floor finishing material 300: wall surface

Claims (6)

In the interlayer noise preventing structure provided between the concrete slab (100) and the floor finishing material (200)
A first styrofoam layer 10 from the bottom; PU foam layer 20; A first mixed layer 30; A second styrofoam layer 40; And a second mixed layer 50 are stacked,
The first mixed layer 30 is formed by filling the porous inorganic material 32 in the grid-shaped PU foam 31,
Wherein the second mixed layer (50) is formed by installing a pipe (P) on a top surface of a PVC plate (51) and a scoria mortar (52).
The method according to claim 1,
Wherein the interlaminar noise preventing structure comprises:
And a sponge layer (60) is provided on a side surface of the sponge layer (60).
The method according to claim 1,
In the porous inorganic material,
Scoria, pumice, charcoal, or a combination of two or more thereof.
The method for constructing an interlayer noise prevention structure according to any one of claims 1 to 3,
A step (S100) of installing a sponge layer (60) on a wall surface (300) of a space to be installed;
Stacking the first styrofoam layer 10 on the upper surface of the concrete slab 100 (S200);
Stacking a PU foam layer 20 on the top surface of the first styrofoam layer (S300);
(S400) stacking the first mixed layer (30) on the upper surface of the PU foam layer (20);
Stacking a second styrofoam layer 40 on the upper surface of the first mixed layer 30 (S500);
Stacking a second mixed layer 50 on the upper surface of the second styrofoam layer 40 (S600); And
And stacking a floor finish material (200) on the upper surface of the second mixed layer (50) (S700).
5. The method of claim 4,
The step of stacking the first mixed layer 30 (S400)
After the PU foam 31 is installed in a lattice shape,
And the porous inorganic material (32) is filled in the lattice inner space.
5. The method of claim 4,
The step of stacking the second mixed layer 50 (S600)
After a pipe P is installed on the upper surface of the PVC plate 51,
Wherein the scoria mortar (52) is laid in a semi-closed manner to finish the construction.

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