KR101681826B1 - Noise-proof flooring structure and its building methode - Google Patents

Abstract

The structure and method of constructing an interlaminar noise cushion of the present invention includes a concrete slab, a hearth portion including at least one cushioning material for canceling noise, a lightweight foamed concrete, a finishing mortar, and a light- And a tarpaulin placed between the carbody and the lightweight foamed concrete.
Therefore, it is possible to prevent sounding phenomenon that may occur at the time of construction by using the waterproof film, thereby improving the sound insulation performance.

Description

TECHNICAL FIELD [0001] The present invention relates to a noise-

The present invention relates to an interlayer noise damping structure and a method of constructing the same, and provides an interlayer noise damping structure and a construction method capable of minimizing interlayer noise by arranging a sound insulation part composed of a cushioning material between a side surface of a concrete floor slab or a wall surface and lightweight foamed concrete .

If the floor impact sound is defined by referring to the contents of the floor impact sound international seminar and related system presentation session held on April 21, 2004, shocks caused by human walking, dropping of objects, leap or running of children, The floor slab vibrates, and the vibration is radiated as air in the air.

In order to solve the problem of the interlayer noise of the apartment house, the registered patent of the present applicant (Korean Registered Patent No. 10-1406406, published on Dec. 12, 2012, hereinafter referred to as "the prior art"), ), It is constructed as a cushioning material on a concrete floor slab, and when the floor impact sound penetrates through the gap between the cushioning material and the cushioning material, the sound is dispersed and almost disappears when reaching the lower layer. As a result, lightweight foamed concrete The piping is disposed thereon and closed with mortar, and the mortar is dried, and then the floor finishing material (floor, long plate, etc.) is constructed.

In the prior art, excellent sound insulation performance was maintained when the mixture was mixed with lightweight foamed concrete up to 70%.

However, in order to increase the sales due to the shortening of the construction process and the cost reduction, when the cushioning material is completely removed from the lightweight foamed concrete or the mixture is mixed with less than 10% (1 ~ 10%), water and cement increased in the lightweight foam concrete, The sound absorbing performance is deteriorated due to the connection of the cushioning material and the cushioning material by hardening and forming a bridge through which a sound flows, that is, a sound bridge.

In addition, when the high-rise apartments are mixed with 70% or more of the cushioning material in the lightweight foamed concrete, it is difficult to smoothly pressurize the lightweight foamed concrete, thereby increasing the technical burden of the raw material supplier.

Korean Registered Patent No. 10-1406406 (published on December 4, 2013).

The structure and method of constructing an interlaminar noise damping structure according to the present invention are intended to prevent the occurrence of a shaking phenomenon that may occur during construction, thereby enhancing sound insulation performance.

Also, it is aimed to reduce the amount of cushioning material mixed with lightweight foamed concrete and increase the sound insulation effect.

The solution to the problem of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

An interlayer noise damping structure according to an embodiment of the present invention includes a concrete slab, a hearth portion including at least one or more cushioning materials for canceling noise, a lightweight foamed concrete, a finishing mortar, and a lightweight foamed concrete And a tarpaulin arranged between the car body and lightweight foamed concrete.

The interlayer noise damping structure according to the embodiment of the present invention preferably has a blocking portion disposed between the sound receiving portion and the waterproofing to fix the buffer contained in the sound receiving portion.

The lightweight foamed concrete of the interlayer noise damping structure according to the embodiment of the present invention preferably has 0 to 10% of a buffer material mixed therein.

The cushioning material of the interlaminar noise-damping structure according to the embodiment of the present invention is a granulated E.V.A. (Ethylene Vinyl Acetate) expanded foam, a PE foamed foam, a PE foamed foam, and the like, which are ground to a size of 5 to 10 mm. Is formed of at least one material selected from foamed foam, PU foamed foam, PVC foamed foam, EPS foamed foam, other synthetic resin, EVA resin raw material, EVA sponge recycling chip, synthetic resin recycling chip, .

It is preferable that at least one sinking prevention part for preventing the sinking due to the installation pressure and the load of the lightweight foamed concrete is disposed at the sound insulation part of the interlayer noise damping structure according to the embodiment of the present invention.

It is preferable that the sinkage preventing portion of the interlayer noise damping structure according to the embodiment of the present invention is formed to have a size corresponding to the thickness of the sound receiving portion.

According to another aspect of the present invention, there is provided a method of constructing an interlayer noise-damping structure, comprising: constructing a sound insulation part in which at least one buffer material is stacked and disposed on a concrete slab or wall surface of a concrete building, A second step of placing the lightweight foamed concrete so as to be stacked on the tarpaulin, and a third step of finishing using the mortar so as to be stacked on the lightweight foamed concrete.

The first step of the method for constructing the interlayer noise damping structure according to another embodiment of the present invention may further include a step 1-1 of arranging at least one sinking prevention part constituted by a size corresponding to the thickness of the sound receiving part in the sound receiving part desirable.

The first step of the method for constructing the interlaminar noise cushioning structure according to another embodiment of the present invention may further include a step 1-2 of arranging a blocking part between the sound receiving part and the tarpaulins to prevent scattering of the cushioning material.

The first step of the method for constructing the interlaminar noise-damping structure according to another embodiment of the present invention is a method of manufacturing an ethylene vinyl acetate (E.V.A.) foam foam, a PE foam foam, and a PE foam foam in the form of granules pulverized to a size of 5 to 10 mm. Formed of at least one material selected from the group consisting of foamed foam, PU foamed foam, PVC foamed foam, EPS foamed foam, other synthetic resin, EVA resin raw material, EVA sponge recycling chip, synthetic resin recycling chip, It is preferable to construct the sound insulation portion by using the cushioning material.

In the second step of the method for constructing an interlaminar noise cushion structure according to another embodiment of the present invention, lightweight foamed concrete mixed with 0 to 10% of a cushioning material is preferably laid in a laminated manner on a hearth.

INDUSTRIAL APPLICABILITY The structure and method of interlayer noise damping according to the present invention have the effect of improving the sound insulation performance by preventing a shaking phenomenon that may occur at the time of construction using a tarpaulin.

Also, by using the material and the diameter of the cushioning material having a high sound insulation effect, the amount of the cushioning material mixed in the lightweight foamed concrete can be reduced, and the sound insulation effect can be enhanced.

Further, due to the above effect, it is possible to realize smooth forced feeding of the lightweight foamed concrete, thereby reducing the technical burden on the raw material supplier.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a schematic sectional view of an interlayer noise damping structure according to a first embodiment of the present invention.
2 is a schematic sectional view of an interlayer noise damping structure according to a second embodiment of the present invention.
3 is a schematic sectional view of an interlayer noise damping structure according to a third embodiment of the present invention.
FIG. 4 is a schematic sectional view showing that the sinking prevention portion is disposed in FIG. 1; FIG.
FIG. 5 is a flowchart of a method of constructing an interlaminar sound absorbing structure according to a fourth embodiment of the present invention.
FIG. 6 is a flow chart embodying the first step shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

In the explanation, referring to Article 14 (3) of the Regulation on Housing Construction Standard, light impact sound means floor impact sound due to relatively light and hard impact, and heavy impact sound means floor impact sound due to relatively heavy and soft impact.

The criteria for the floor impact sound isolation performance in accordance with Article 4 of the Building Code are as follows.

Light weight impact sound (unit: dB)
Rating Station A Characteristic weight Normalized floor impact sound level
Single numerical evaluation: L'n, Aw
1st grade
L 'n, Aw? 43
2nd grade
43 <L 'n, Aw? 48
Class 3
48 <L 'n, Aw? 53
4th grade
53 <L 'n, Aw? 58

Heavy impact sound (unit: dB)
Rating Station A Characteristic weight Normalized floor impact sound level
Single numerical evaluation: Li, max, Aw
1st grade
L n, F max, A w ≤ 40
2nd grade
40 <L'n, Fmax, Aw? 43
Class 3
43 &lt;L'i, Fmax, Aw &lt; = 47
4th grade
47 &lt;L'i, Fmax, Aw? 50

Hereinafter, an interlayer noise damping structure according to a first embodiment of the present invention will be described with reference to FIG.

1 is a schematic sectional view of an interlayer noise damping structure according to a first embodiment of the present invention.

As shown in FIG. 1, the interlayer noise damping structure according to the first embodiment of the present invention includes at least one cushioning material 171 arranged to be laminated on a concrete concrete floor slab 110 or a wall and to cancel noise A lightweight foamed concrete 150 laid to be stacked on the sound receiving part 120 and a finished mortar 160 placed so as to be stacked on the lightweight foamed concrete 150 are included.

In order to prevent the inflow of the lightweight foamed concrete 150 into the sound receiving portion 120, the waterproofing pouch 140 disposed between the sound receiving portion 120 and the lightweight foamed concrete 150, and the cushioning material 171 And a blocking unit 130 disposed between the sound receiving unit 120 and the waterproof box 140.

The cushioning materials 171 and 172 are made of E.V.A (Ethylene Vinyl Acetate) foamed foam, PE foamed foam and PE foamed foam in the form of granules which are ground to a size of 5 to 10 mm. Is formed of at least one material selected from foamed foam, PU foamed foam, PVC foamed foam, EPS foamed foam, EVA resin raw material, other synthetic resin, EVA sponge recycling chip, synthetic resin recycling chip, And it is not limited to this, and a material capable of dispersing noise in the form of a chip can be used.

Here, when the granular shape is about 5 mm in size, the highest sound insulation effect can be obtained, which will be described in more detail later.

The blocking part 130 may be made of urethane styrofoam, polyester, cotton, wool, fiber, wood, other synthetic resin, or other synthetic resin film, waterproof cloth, waterproof spray, Products can be used.

The blocking part 130 has an effect of enhancing the sound insulation effect while preventing the cushioning material of the sound receiving part 120 from being scattered by the wind during construction.

When the lightweight foamed concrete is poured into the waterproof box 140, the lightweight foamed concrete 150 is prevented from flowing into the sound absorption portion 120, and the lightweight foamed concrete 150 is prevented from entering the buffering portion 171 of the sound absorption portion 120 ) And prevents the sound bridge from being hardened.

In the interlayer noise damping structure according to the first embodiment of the present invention, it is preferable that 0 to 10% of the buffer material 172 is mixed with the lightweight foamed concrete 150.

That is, the blocking part 130 is stacked on the sound receiving part 120 and the waterproofing film 140 is stacked on the blocking part 130 to prevent the lightweight foamed concrete 150 from entering the sound shielding part 120 When the lightweight foamed concrete 150 in which the cushioning material 172 is mixed with 0 to 10% is installed in the tarpaulins 140 and then closed with the mortar 160, the sound insulation effect is maximized as shown in the following table .

The floor impact sound of the interlayer noise damping structure (59 m &lt; 2 &gt; Type) according to the first embodiment of the present invention
(Lightweight foamed concrete: cushioning material = 95%: 5%)
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
36
40
1st grade
1st grade

The floor impact sound of the interlayer noise damping structure (84 m &lt; 2 &gt; Type) according to the first embodiment of the present invention
(Lightweight foamed concrete: cushioning material = 95%: 5%)
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
32
41
1st grade
2nd grade

The floor impact sound of the interlayer noise damping structure (59 m &lt; 2 &gt; Type) according to the first embodiment of the present invention
(Lightweight foamed concrete: cushioning material = 90%: 10%)
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
41
43
1st grade
2nd grade

Floor impact sound of the prior art interlayer noise damping structure
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
51
47
Class 3
Class 3

Table 3 to Table 5 show the result of floor impact sound of the interlayer noise damping structure according to the first embodiment of the present invention tested at an apartment construction site, wherein the concrete slab is 210 mm or more, the lightweight foamed concrete is 40 mm or more, But it is not limited to this, and it is possible to control the thickness according to the construction environment, conditions, and the like.

The shielding part 120, the waterproofing film 140 and the blocking part 130 are formed to have a thickness of 22.8 to 26.8 mm, 0.03 to 0.2 mm, and a blocking part 130 of 3 to 7 mm, respectively. Is preferably 30 mm or more, but it is not limited to this, and the thickness can be controlled according to the construction environment, conditions, and the like.

The lightweight foamed concrete 150 is composed of a cushioning material 172 formed of E.V.A having a size of about 5 mm and the cushioning unit 120 is composed of a cushioning material 171 formed of E.V.A having a size of about 5 mm.

As described above, it is preferable that the lightweight foamed concrete is mixed with 0 to 10% of the buffer material 172, and as shown in Table 3 and Table 5, when the 5% buffer material 172 is mixed, You can see the highest.

Table 6 above shows the results of the floor impact sound of the conventional interlayer noise cushion structure tested at an apartment construction site, and the prior art is stacked in the order of a concrete floor slab, a car sound part, a lightweight foamed concrete, and a finished mortar.

The thickness of the floor slab is 150 ~ 240mm, the thickness including the lightweight foamed concrete and the finishing mortar is 110mm, the thickness of the sound insulation is 20mm, the thickness of the blocking plate is 3 ~ 7mm and the waterproofing is 0.03 ~ 0.2mm. The thickness including the shielding plate and the tarpaulins is 30 mm, and the diameter of the cushioning material of the sounding part and the lightweight foamed concrete is preferably 50 mm or less.

In lightweight foamed concrete, the cushioning material formed by E.V.A of 5mm size was mixed with 60 ~ 70% and the sound insulation part was composed of 5mm E.V.A.

Compared with Tables 3 to 6, a light-weighted foamed concrete 150 in which 5% of a cushioning material 172 formed of EVA having a size of about 5 mm is mixed with a cushioning material 171 formed of EVA having a size of about 5 mm 120) according to the first embodiment of the present invention has significantly higher sound insulation effect than the prior art.

Therefore, it is possible to reduce the amount of the cushioning material 172 to be mixed with the lightweight foamed concrete 150, and at the same time to enhance the sound insulation effect. In the case of the high-rise apartment building, By solving the difficulty of forcible conveyance of bubble concrete, it is possible to reduce the technical burden on the raw material supplier.

The noise absorbing structure according to the first embodiment of the present invention may be stacked on the finished mortar 160 to further enhance the interlaminar noise effect, and the material of the shock absorbing part may be synthetic resin sponge, paper, Shock absorbing sponges, polyester, sponge grains and the like can be used.

Referring to FIG. 4, the interlayer noise damping structure according to the first embodiment of the present invention includes a sound enclosure 120 to prevent the sinking part 120 from sinking due to the installation pressure and load of the lightweight foamed concrete 150, At least one sinking prevention part 190 may be formed.

The sinkage prevention part 190 may be formed in various shapes such as a sphere or a hexahedron having a size corresponding to the thickness of the sound receiving part 120.

Hereinafter, an interlayer noise damping structure according to a second embodiment of the present invention will be described with reference to FIG.

2 is a schematic sectional view of an interlayer noise damping structure according to a second embodiment of the present invention.

As shown in FIG. 2, the interlayer noise damping structure according to the second embodiment of the present invention includes at least one cushioning material 171 arranged to be laminated on a building concrete floor slab 110 or a wall surface and to cancel noise A lightweight foamed concrete 150 laid to be stacked on the sound receiving part 120 and a finished mortar 160 placed so as to be stacked on the lightweight foamed concrete 150 are included.

The waterproofing pouch 140 disposed between the sound receiving portion 120 and the lightweight foamed concrete 150 to prevent the lightweight foamed concrete 150 from flowing into the sound receiving portion 120 and the waterproof pouch 140 disposed between the soundproof portion 120 and the lightweight foamed concrete 150, And a blocking unit 130 disposed between the sound unit 120 and the waterproof box 140.

That is, the blocking part 130 is stacked on the sound receiving part 120 and the waterproofing film 140 is stacked on the blocking part 130 to prevent the lightweight foamed concrete 150 from entering the sound shielding part 120 The lightweight foamed concrete 150 is laid on the tarpaulins 140, and then the mortar 160 is finished.

Here, the shock absorber 120 preferably includes a buffer material 171 having a size of about 5 mm, and detailed effects and contents will not be described herein.

In the interlayer noise damping structure according to the second embodiment of the present invention, it is most preferable that the concrete floor slab 110 is 180 mm or more, the lightweight foamed concrete 150 is 70 mm or more, and the finished mortar 160 is 50 mm or more , But is not limited thereto.

The blocking part 130 is formed to have a thickness of 2 mm to 8 mm and the waterproof film 140 has a thickness of 0.03 to 0.4 mm. The sound shield 120, the blocking part 130, 140) is most preferably 30 mm or more. However, the thickness is not limited to this, and the thickness can be controlled according to the construction environment and conditions.

The cushioning material 171 is made of sis (Styrene 731block copolymer), an NBR (Nitrile Butadiene Rubber) foamed foam used as a vibration-proof rubber among general rubber materials, a high-elasticity Engage foamed foam, EVA foaming foam (Ethylene Vinyl Acetate) is widely used.

Among them, the EVA has the lowest number of the fly ash, and the modulus of dynamic elasticity does not change with time, so it is best to use it as a cushioning material.

Floor impact sound of a noise-damping structure using a cushioning material formed of sis (Styrene 731block copolymer)
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
41
51
1st grade
Under grade

Floor impact sound of a noise-cushioning structure using a cushioning material formed of E.V.A foam (Ethylene Vinyl Acetate)
Lightweight normalized floor impact sound (dB)
Weight normalized floor impact sound (dB)
Single numerical evaluation: L'n, Aw
Single numerical evaluation: Li, max, Aw
47
47
2nd grade
Class 3

Comparison of Dynamic Modulus of E.V.A Foam (Ethylene Vinyl Acetate) Diameter ranking size The initial dynamic modulus (A)
(mn / m 3) The dynamic modulus of elasticity (B) (mn / m 3) after a lapse of 350 hours (B) - (A) (mn / m 3)
One
1 mm
12.62
30
17.38
2
5 mm
4.93
7.09
2.16
3
10 mm
9.66
12.62
2.96
4
25 mm
11.09
19.72
8.63

Table 7 and Table 8 show the results of the floor impact sound of the noise cushioning structure using the cushioning material formed by the sis tested at the apartment construction site and the floor impact sound of the noise cushioning structure using the cushioning material formed by the E.V.A foamed foam.

In this test, after 288 hours, the dynamic modulus of the sis was 21.18mn / ㎥ difference from the initial, and the dynamic modulus of elasticity of E.V.A was 2.57mn / ㎥ difference from the initial value.

Comparing Table 7 and Table 8, it can be confirmed that the sound insulation effect is higher when the EVA foam foam having a relatively small dynamic elastic modulus is used as a cushioning material, and when the sis is used as a cushioning material, It was judged that a sound bridge was formed.

Also, as shown in Table 9, the dynamic elastic modulus according to the size of E.V.A and the dynamic modulus of elasticity over time show that the dynamic elastic modulus is lowest at about 5 mm.

That is, when E.V.A having a size of 5 to 10 mm is used as the cushioning material 171, the sound insulation effect is high, and it can be confirmed that the highest sound insulation effect is obtained when E.V.A having a size of about 5 mm is used.

Accordingly, in the interlayer noise damping structure according to the second embodiment of the present invention, the cushioning material 171 is made of an ethylene vinyl acetate (E.V.A.) foamed foam, a PE foam foam, a PE foam foam, Is formed of at least one material selected from foamed foam, PU foamed foam, PVC foamed foam, EPS foamed foam, other synthetic resin, EVA resin raw material, EVA sponge recycling chip, synthetic resin recycling chip, And it is not limited to this, and a material capable of dispersing noise in the form of a chip can be used.

In order to obtain a higher sound insulation effect, it is preferable that the buffer material 171 is formed of granular E.V.A pulverized into a size of about 5 mm.

The blocking part 130 may be made of urethane styrofoam, polyester, cotton, wool, fiber, wood, other synthetic resin, or other synthetic resin film, waterproof cloth, waterproof spray, Products can be used.

The blocking portion 130 has an effect of enhancing the sound insulation effect while preventing the buffering member 171 of the sound receiving portion 120 from being scattered by the wind during construction.

When the lightweight foamed concrete 150 is poured into the waterproof box 140, the lightweight foamed concrete 150 is prevented from flowing into the sound absorption portion 120, so that the lightweight foamed concrete 150 flows into the soundproof portion 120 And serves to prevent sound bridge caused by hardening with the cushioning material 171.

The noise absorbing structure according to the second embodiment of the present invention may be stacked on the finished mortar 160 to further enhance the interlaminar noise effect. The material of the shock absorbing part may be synthetic resin sponge, paper, Shock absorbing sponges, polyester, sponge grains and the like can be used.

Referring to FIG. 4, the interlayer noise damping structure according to the second embodiment of the present invention includes a sound-receiving portion 120 for preventing the sinking portion 120 from sinking due to the installation pressure and the load of the lightweight foamed concrete 150, At least one sinking prevention part 190 may be formed.

The sinkage prevention part 190 may be formed in various shapes such as a sphere or a hexahedron having a size corresponding to the thickness of the sound receiving part 120.

Hereinafter, an interlayer noise damping structure according to a third embodiment of the present invention will be described with reference to FIG.

3 is a schematic sectional view of an interlayer noise damping structure according to a third embodiment of the present invention.

As shown in FIG. 3, the interlayer noise damping structure according to the third embodiment of the present invention includes a floor slab 110 or a wall surface of a building, and includes at least one cushioning material 171 for canceling noise A lightweight foamed concrete 150 laid to be stacked on the sound receiving portion 120 and a finished mortar 160 placed to be stacked on the lightweight foamed concrete 150 are included.

And a tarpaulin 140 disposed between the sound receiving portion 120 and the lightweight foamed concrete 150 to prevent the introduction of the lightweight foamed concrete 150 into the sound receiving portion 120.

The cushioning material 171 is an ethylene vinyl acetate (E.V.A.) expanded foam, a PE foamed foam, and a PE foamed foam in the form of granules which are ground to a size of 5 to 10 mm. It is most preferable to be formed of at least one material selected from foam foam, PU foam foam, PVC foam foam, EPS foam foam, other synthetic resin, EVA sponge recycling chip, synthetic resin recycling chip or rubber foaming foam However, the present invention is not limited to this, and it is possible to use all kinds of introductions capable of chip-type noise dispersion.

In order to obtain a higher sound insulation effect, it is preferable that the cushioning material 171 is formed of EVA in the form of granules crushed to a size of about 5 mm, and the effect and detailed description thereof are the same as those described above, .

The waterproof film 140 is made of a pe film, and other synthetic resin film, waterproof cloth, waterproof spray, or the like can be used.

The waterproofing foil 140 prevents the lightweight foamed concrete 150 from flowing into the sound inlet 120 when the lightweight foamed concrete 150 is poured so that the buffer 130 of the sound inlet 120 is filled with the lightweight foamed concrete 150, (171) and a sound bridge that is generated by hardening.

In the interlayer noise damping structure according to the third embodiment of the present invention, it is most preferable that the concrete floor slab 110 is 210 mm or more, the lightweight foamed concrete 150 is 40 mm or more, and the finished mortar 160 is 40 mm or more , But it is not limited to this, and the thickness can be adjusted according to the construction environment and conditions.

It is most preferable that the thickness of the sound receiving portion 120 is 30 mm or more and the waterproof film 140 is 0.03 to 0.2 mm thick and the thickness including the sound receiving portion 120 and the waterproof film 140 is 30 mm or more. Thickness can be adjusted according to construction environment and conditions without limitation.

The noise absorbing structure according to the third embodiment of the present invention can be stacked on the finished mortar 160 in order to further enhance the interlaminar noise effect. The material of the shock absorbing part may be synthetic resin sponge, paper, Shock absorbing sponges, polyester, sponge grains and the like can be used.

Referring to FIG. 4, the interlayer noise damping structure according to the third embodiment of the present invention includes a sound absorbing part 120, a light absorbing part 120 and a light absorbing part 120 to prevent the sound absorbing part 120 from sinking due to the installation pressure and load of the lightweight foamed concrete 150, At least one sinking prevention part 190 may be formed.

The sinkage prevention part 190 may be formed in various shapes such as a sphere or a hexahedron having a size corresponding to the thickness of the sound receiving part 120.

Hereinafter, a method of constructing an interlaminar noise cushion structure according to a fourth embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

FIG. 5 is a flowchart of a method of constructing an interlaminar sound absorbing structure according to a fourth embodiment of the present invention.

Referring to FIGS. 1 and 5, a method for constructing an interlayer noise damping structure according to a fourth embodiment of the present invention includes a floor slab 110 of a concrete concrete structure or at least one cushioning material 171 for canceling noise on a wall surface A first step S110 of placing the sound insulation part 120 on the sound insulation part 140 and stacking the waterproofing film 140 on the sound receiving part 120 and the first step S110 of placing the lightweight foamed concrete 150 in a stacked manner on the waterproofing film 140 A second step S120 and a third step S130 of finishing the mortar 160 to be stacked on the lightweight foamed concrete 150. [

In the third step S130, the lightweight foamed concrete 150 is installed and dried, and then the pipe 161 is disposed and the mortar 160 is finished.

In the first step S110, the waterproof film 140 is stacked on the sound receiving portion 120, so that the lightweight foamed concrete 150 can be prevented from flowing into the sound receiving portion 120.

In the first step S110, the cushioning material 171 of the sound absorbing part 120 is a granular E.V.A (Ethylene Vinyl Acetate) expanded foam pulverized into 5 to 10 mm size, PE foam foam, It is most preferable to be formed of at least one material selected from foam foam, PU foam foam, PVC foam foam, EPS foam foam, other synthetic resin, EVA sponge recycling chip, synthetic resin recycling chip or rubber foaming foam However, the present invention is not limited thereto, and a chip-type material capable of noise dispersion can be used.

In order to obtain a higher sound insulation effect, it is preferable that the cushioning material 171 is formed of EVA in the form of granules crushed to a size of about 5 mm, and the effect and detailed description thereof are the same as those described above, .

4 and 6, in the first step S110 of the method for constructing an interlaminar sound damping structure according to the fourth embodiment of the present invention, the subsidence prevention part 190 having a size corresponding to the thickness of the sound receiving part 120, (Step S111) of arranging at least one or more of the light-shielding part 120 in the sound receiving part 120 so as to prevent the sinking part 120 from sinking due to the insertion pressure and the load of the lightweight foamed concrete 150 Do.

And a first step S112 of arranging the blocking part 130 between the sound receiving part 120 and the waterproofing film 130 to prevent scattering of the cushioning material 171 in the first step S110 desirable.

In the second step S120, the lightweight foamed concrete 150 is granulated into 5 to 10 mm sized granules of E.V.A (Ethylene Vinyl Acetate) expanded foam, PE expanded foam, P.P. Is formed of at least one material selected from foamed foam, PU foamed foam, PVC foamed foam, EPS foamed foam, other synthetic resin, EVA resin raw material, EVA sponge recycling chip, synthetic resin recycling chip, The cushioning material 172 is not limited thereto, and any material capable of dispersing noise in the form of a chip may be used.

The effects and specific explanations thereof are the same as those described above, and will not be described below.

The second step S120 in the method of constructing an interlaminar noise cushioning structure according to the fourth embodiment of the present invention is such that the lightweight foamed concrete 150 in which the cushioning material 172 is mixed with 0 to 10% The effects and specific explanations thereof are the same as those described above, and the following description will be omitted.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention.

Therefore, it is to be understood that the embodiments disclosed herein are not intended to limit the scope of the present invention but to limit the scope of the present invention.

It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. It should be interpreted.

110: concrete slab 120:
130: blocking part 140: tarpaulins
150: Lightweight foam concrete 160: Finishing mortar
161: piping 171, 172: cushioning material
190:

Claims (11)

A concrete slab 110;
EVA (Ethylene Vinyl Acetate), PE foam foam, PP foam foam, PVC foam foam, EPS foam foam, other synthetic resin, EVA sponge recycled chips, synthetic resin recycle chips, A car sounding unit 120 in which granular cushioning materials corresponding to at least one of rubber foamed products are stacked;
EVA (Ethylene Vinyl Acetate) expanded foam, PE foam foam, PP foam foam, PU foam foam, PVC foam foam, EPS foam foam, other synthetic resins, EVA resin raw materials and EVA sponge pulverized into 5 ~ A lightweight foamed concrete 150 in which 0.1 to 10% of a cushioning material formed of at least one of a chip, a synthetic resin regenerating chip or a rubber foamed product is mixed;
Closed mortar 160;
A tarpaulin 140 disposed between the sound receiving unit 120 and the lightweight foamed concrete 150 to prevent the lightweight foamed concrete 150 from flowing into the sound receiving unit 120; And
(130) for preventing the buffering material from being scattered between the sound shielding part (120) and the waterproofing film (140).
delete delete delete The method according to claim 1,
The sound receiving unit 120
Wherein at least one subsidence prevention part (190) for preventing settlement due to the installation pressure and the load of the lightweight foamed concrete (150) is disposed.
6. The method of claim 5,
The sinking prevention part 190
And a thickness corresponding to the thickness of the sound receiving portion (120).
EVA (Ethylene Vinyl Acetate), PE foam foam, PP foam foam, PVC foam foam, EPS foam foam, other synthetic resins, EVA sponge recycled chips (1 ~ 50 mm in diameter) on the concrete floor slab A sound absorbing material 120 is laminated on a granular material corresponding to at least one of a recycling chip of synthetic resin and a rubber foam product and a waterproof film 140 is laminated on the sound engaging part 120 (S110);
(S112) of arranging a sheet-like cut-off portion (130) for preventing the buffer material from scattering between the sound shielding portion (120) and the waterproof film (140);
A PE foam foam, a PP foam foam, a PU foam foam, a PVC foam foam, an EPS foam foam, and other synthetic resin pulverized in a size of 5 to 10 mm so as to be stacked on the waterproof foam 140, Lightweight foamed concrete 150 in which 0.1 to 10% of a cushioning material formed of at least one of EVA resin raw material, EVA sponge recycling chip, synthetic resin recycling chip or rubber foaming foam is placed A second step S120;
A third step (S130) of finishing using the mortar (160) so as to be stacked on the lightweight foamed concrete (150);
Lt; RTI ID = 0.0 &gt; 1, &lt; / RTI &gt;
8. The method of claim 7,
In the first step S110,
(S111) of arranging at least one sinking prevention part (190) having a size corresponding to the thickness of the sound receiving part (120) in the sound receiving part (120) Way.
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