KR102097028B1 - Noise-proof flooring structure and its builing methoed - Google Patents

Abstract

The present invention relates to an interlayer noise damping structure and a construction method, specifically, an interlayer noise absorbing structure and construction that can minimize interlayer noise and shorten air by constructing a sound insulation portion composed of a cushioning material between a concrete floor slab and a waterproof plate. It's about how. The present invention is a concrete floor slab; A sound insulation unit for canceling the floor impact sound transmitted through the concrete floor slab; A settling prevention part for preventing settlement of the sound insulation part; A waterproof plate placed and cured in the sound insulation part; Includes; it is poured over the top of the waterproof plate is cured finish mortar. In addition, the present invention comprises the steps of constructing a sound insulation portion on a concrete floor slab; Placing a settlement-prevention unit in the sound insulation unit; Constructing a waterproof plate on the sound insulation portion; And closing the waterproof plate.

Description

Floor noise reduction structure and construction method {NOISE-PROOF FLOORING STRUCTURE AND ITS BUILING METHOED}

The present invention relates to an interlayer noise damping structure and a construction method, specifically, an interlayer noise absorbing structure and construction that can minimize interlayer noise and shorten air by constructing a sound insulation portion composed of a cushioning material between a concrete floor slab and a waterproof plate. It's about how.

Floor impact sound If the floor impact sound is defined with reference to the contents of the International Seminar and Related Systems Expo (held on April 21, 2004), the impact caused by human walking, falling objects, children's leaping or running, and furniture movement When it is applied to, the floor slab vibrates, and the vibration is radiated as sound in the air.

In order to solve the inter-floor noise problem of the apartment complex, the applicant's registered patent (Republic of Korea Patent Registration No. 10-1406406. Published on Dec. 4, 2013. Hereinafter referred to as "Prior Art") is a sponge foam (Chip ) Is constructed in the form of a buffer material on a concrete floor slab, and the sound of the floor impact sound permeates into the gap between the buffer material and the buffer material, and the sound is dispersed and almost disappears when it reaches the lower layer. It is arranged, and piping is disposed thereon to finish with a mortar, and after drying of the mortar, a floor finishing material (floor, flooring, etc.) is constructed.

The prior art maintains excellent sound insulation performance during construction by mixing granules up to 70% in lightweight foam concrete.

However, in order to shorten the construction process and increase sales due to cost reduction, when the buffer material is completely removed from the lightweight foam concrete or mixed (1 to 10%) below 10%, the water and cement increased in the lightweight foam concrete flow between the buffer material. As it enters and solidifies, the buffer material and the buffer material are connected, thereby forming a bridge through which sound flows, that is, a sound bridge, resulting in poor sound insulation performance.

In addition, when the high-rise apartment construction, when mixing more than 70% of the buffer in the lightweight foam concrete, it is difficult to smoothly forcibly pressurize the lightweight foam concrete, causing a problem that the technical burden of the original contractor increases.

Republic of Korea Registered Patent Publication No. 10-1406406 (published on December 4, 2013.)

An object of the present invention is to provide an interlayer noise buffer structure and a construction method capable of minimizing interlayer noise and shortening air by constructing a sound insulation portion composed of a cushioning material between a concrete floor slab and a waterproof plate.

The present invention is a concrete floor slab; A sound insulation unit for canceling the floor impact sound transmitted through the concrete floor slab; A settling prevention part for preventing settlement of the sound insulation part; A waterproof plate placed and cured in the sound insulation part; Includes; it is poured over the top of the waterproof plate is cured finish mortar.

In the present invention, it is preferable that the sound insulation portion is installed on the top of the concrete floor slab, and at least one cushioning material is laminated.

In the present invention, the cushioning material is foamed foam, EVA or synthetic resin of EVA (Ethylene, Vinyl Acetate), PE, PP, PVC, PU, EPS, rubber, and other synthetic resins crushed to a size of 50 mm or less. It is preferably formed of at least one or more of the raw material, recycled chip (chip).

In the present invention, it is preferable that at least one or more of the anti-settling portions are installed in the sound insulation portion.

In the present invention, it is preferable that an insulating material is attached to the upper end and / or the lower end of the settlement preventing unit.

The present invention further includes a mesh disposed on the upper portion of the sound insulation to prevent the dispersion of the buffer material.

In the present invention, the waterproof plate includes a root portion formed on an upper portion of the sound insulation portion.

In the present invention, the waterproof plate is preferably made of at least one material of cement, lime, mud, tar, ocher, and asphalt.

It is preferable that the waterproofing operation for the construction of the cushioning material can be excluded by adjusting the water binding material ratio (W / B) of the waterproofing plate or adjusting the thickness to form the waterproofing plate.

In addition, the present invention comprises the steps of constructing a sound insulation portion on a concrete floor slab; Placing a settlement-prevention unit in the sound insulation unit; Constructing a waterproof plate on the sound insulation portion; And closing the waterproof plate.

In the present invention, the step of constructing the sound insulation portion includes the step of laminating and arranging at least one buffer material.

In the present invention, the step of placing the settlement-prevention section may include disposing the settlement-prevention section in the sound insulation section; And attaching an insulating material to the upper end and / or the lower end of the settlement preventing unit.

In the present invention, the step of placing the settlement unit includes disposing a mesh on the upper portion of the sound insulation unit to prevent scattering of the buffer material.

In the present invention, the step of constructing the waterproof plate includes disposing the waterproof plate on an upper portion of the sound insulation portion; And installing piping on the waterproof plate.

In the present invention, the step of closing the waterproof plate includes pouring and curing a finishing mortar on the upper portion of the waterproof plate; And placing and finishing a floor finishing material on the cured finishing mortar.

The inter-layer noise reduction structure and construction method according to the present invention can shorten the air and obtain a cost reduction effect by replacing the conventional lightweight foam concrete with a waterproof plate.

In addition, it is possible to minimize the noise between the floors by constructing a sound insulation portion composed of a cushioning material between the concrete floor slab and the waterproof plate, and can increase the insulation performance effect.

1 is a schematic cross-sectional view of an inter-layer noise damping structure according to an embodiment of the present invention.
2 is a flowchart of a method for constructing an inter-layer noise damping structure according to an embodiment of the present invention.
FIG. 3 is a flow chart embodying a step (S120) of installing a settlement unit shown in FIG. 2.
FIG. 4 is a flow chart embodying the waterproof plate construction step (S130) illustrated in FIG. 2.
FIG. 5 is a flowchart illustrating the upper finishing step (S140) of the waterproof plate shown in FIG. 2.

In order to describe in detail that a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention, the most preferred embodiment of the present invention will be described with reference to the accompanying drawings.

First, when adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as possible even though they are displayed on different drawings.

In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

In the direction expressed in the contents described below prior to the detailed description of the present invention, the upper side of the “upper part” is a direction toward the sound insulation part 120 based on the concrete floor slab 110 shown in FIG. 1, The lower part of the “lower part” is defined as the direction toward the concrete floor slab 110 side based on the sound insulation part 120.

In the description, referring to Article 14 (3) of the Regulations on Housing Construction Standards, etc., the lightweight impact sound means the floor impact sound due to a relatively light and hard impact, and the heavy impact sound refers to the floor impact sound due to a relatively heavy and soft impact.

In addition, the rating criteria of the floor impact sound blocking performance according to Article 4 of the Building Act are as follows.

Lightweight impact sound (unit: dB)
Rating Inverse A Characteristics Weighted Normalized Floor Impact Sound Level
Single Numerical Evaluation: L'n, Aw
1st grade
L'n, Aw ≤ 43
Level 2
43 <L 'n, Aw ≤ 48
Level 3
48 <L 'n, Aw ≤ 53
Level 4
53 <L 'n, Aw ≤ 58

Weight impact sound (unit: dB)
Rating Inverse A Characteristics Weighted Normalized Floor Impact Sound Level
Single Numerical Evaluation: Li, max, Aw
1st grade
L'n, Fmax, Aw ≤ 40
Level 2
40 <L'n, Fmax, Aw ≤ 43
Level 3
43 <L'i, Fmax, Aw ≤ 47
Level 4
47 <L'i, Fmax, Aw ≤ 50

Hereinafter, with reference to Figure 1, it will be described with respect to the interlayer noise absorbing structure according to an embodiment of the present invention.

1 is a schematic cross-sectional view of an inter-layer noise damping structure according to an embodiment of the present invention.

The interlayer noise-absorbing structure includes a concrete floor slab 110, a sound insulation portion 120 for canceling the floor impact sound transmitted through the concrete floor slab 110, and a settling prevention portion for preventing settlement of the sound insulation portion 120 130.

And it includes a waterproof plate 150 disposed on the upper portion of the sound insulation portion 120, a finishing mortar 160 cured by pouring on the upper portion of the waterproof plate 150.

The sound insulation part 120 is installed on the concrete floor slab 110, and at least one or more cushioning materials 121 are stacked.

The cushioning material 121 is a foamed foam of EVA (Ethylene, Vinyl Acetate), PE, PP, PVC, PU, EPS, rubber, other synthetic resins, crushed to a size of 50 mm or less, EVA or synthetic resin It is most preferably formed of at least one material among raw materials and recycled chips, and is not limited thereto. Any material capable of dispersing noise in the form of chips can be used.

The cushioning material 121 is in the form of granules, and at least one or more of the settlement preventing parts 130 in the sound insulation part 120 to prevent settlement of the cushioning material 121 due to pour pressure and load of the waterproof plate 150 ) Is in place.

The settlement prevention unit 130 may be manufactured in various shapes such as a spherical shape or a hexahedral shape having a size corresponding to the thickness of the sound insulation unit 120.

At least one of the upper end and the lower end of the settling prevention unit 130, or at least one of the upper end and the lower end of the settlement prevention unit 130, in order to prevent the floor impact sound from being transmitted through the settlement prevention unit 130. An insulating material 131 is attached to any one.

Here, as described later, when the sound insulation performance of the settlement prevention unit 130 is excellent, the construction of the insulating material 131 may be excluded.

Since the settlement unit 130 connects between the waterproof plate 150 and the concrete floor slab 110, the same type as the waterproof plate 150 and the concrete floor slab 110, that is, a material such as cement block or metal In this case, the floor impact sound may be transmitted to the lower floor.

As the insulating material 131 for blocking this, a thin sheet or granular form of foam, such as EVA, PE, EPS, PU, PVC, rubber, etc. can be used, but it is not limited to this and is not known to transmit sound. All of the materials can be used.

Here, the wall buffer 180 illustrated in FIG. 1 may also be used as a material of the insulating material 131.

The mesh 140 is disposed on the upper portion of the sound insulation 120, and the mesh 140 can be used as long as the cushioning material 121 does not pass, such as a mosquito net fabric or an insect screen.

The mesh 140 may be prevented from being damaged by an operator of another construction while preventing the shock absorber 121 from being scattered by the wind during construction, and the vehicle may be prevented due to the pouring pressure of the waterproof plate 150 The pubic portion 120 can be prevented from being damaged.

The waterproof plate 150 is a configuration that replaces the conventional lightweight foam concrete, and is a cement plate formed by curing cement, and its thickness is less than half of that of a conventional 40 mm thick lightweight foam concrete.

Reducing the thickness of the waterproof plate 150 to less than half the level of lightweight foam concrete is to reduce the amount of water to be combined.

Referring to Table 3 to Table 6, the mixing ratio of the waterproof plate 150 is based on the finishing mortar 160 or lightweight foam concrete, but the amount of cement is appropriately adjusted according to the strength, based on the thickness of the waterproof plate 20mm It can be seen that the amount of water is the most suitable water binding material ratio (W / B) 30% ~ 60 &.

This is excellent in sound insulation when the water binder is less than 30%, but it is possible to cause problems in construction due to significantly reduced workability due to rapid drying of water and cement, and when the water binder is more than 60% This is because the castle is good, but water and cement are in contact with the concrete floor slab 110 to form a bridge, so the sound insulation is significantly lower.

Here, when the thickness of the waterproof plate is 10mm, the amount of water is halved, so it is not affected by the water binding material cost.

When the thickness of the waterproof plate is 20mm, compare the performance of the floor impact sound by 30% and 60% of the water binding material ratio (cement: sand = 1: 3)
W / B 30%
W / B 60%
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
shame
43
42
45
46
Rating
1st grade
Level 2
Level 2
Level 3
result
The workability is slightly poor, but it does not interfere with construction, and the sound insulation is excellent.
Good workability and sound insulation

When the waterproof plate thickness is 20mm, compare the performance of the floor impact sound by 35% and 55% of the water binding material ratio (cement: sand = 1: 3)
W / B 35%
W / B 55%
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
shame
43
42
45
46
Rating
1st grade
Level 2
Level 2
Level 3
result
The workability is slightly poor, but it does not interfere with construction, and the sound insulation is excellent.
Good workability and sound insulation

When the thickness of the waterproof plate is 20mm, compare the performance of the floor impact sound by 15% and 25% of the water binding material ratio (cement: sand = 1: 3)
W / B 15%
W / B 25%
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
shame
41
40
42
41
Rating
1st grade
1st grade
1st grade
Level 2
result
Construction is difficult because workability is significantly reduced. Excellent sound insulation.

When the thickness of the waterproof plate is 20mm, the performance of the floor impact sound by water bonding material ratio is 64% and 70% (cement: sand = 1: 3)
W / B 64%
W / B 70%
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
shame
57
50
60
52
Rating
Level 4
Level 4
Out of grade
Out of grade
result
Good workability but poor sound insulation due to water and cement touching the floor.

As described above, if the amount of water is less than 30% to 60% of the water / binder ratio (W / B), and the thickness of the waterproof plate 150 is about half, water and cement are absorbed by the self-loading material. Adjusting the water binding material ratio (W / B) of the waterproof plate 150 by completing the curing of the waterproof plate 150 by drying on the surface without flowing into the concrete floor slab 110 while flowing between the 121 Alternatively, by adjusting the thickness, a waterproof plate 150 is formed, so that a waterproofing operation for the construction of the buffer material 121 may be excluded.

In the case of the conventional lightweight foam concrete, the waterproofing operation of installing separate waterproofing members on the floor and the wall must be performed when the cushioning material 121 is constructed, but the waterproofing plate 150 of the present invention is excluded from this waterproofing operation. The effect of air shortening and cost reduction can be obtained.

In addition, in the case of lightweight foam concrete, the curing period is about 7 days, but in the case of the waterproof plate 150, the curing is completed and the piping 161 can be installed on the upper portion, so that the air can be shortened by about 5 days. .

Here, the material of the waterproof plate 150 is not limited to cement, and may be made of at least one of cement, lime, mud, tar, ocher, and asphalt.

According to the Ministry of Land, Infrastructure and Transport Notice No. 2015-997, Article 32 ③, [The cushioning material installed on the floor should be installed in close contact with each other so that there is no gap between the cushioning materials. It should be noted that the finishing mortar should not be in direct contact with the wall.

This is because all existing cushioning materials are in the form of plates (PAD), so water and cement are prescribed to prevent water from flowing between them.

In the present invention, since the buffer material 121 of the sound insulation portion 120 is in the form of granules, the water and cement of the waterproof plate 150 flow between the buffer material 121 and solidify while the root portion 151 is formed. Even if the thickness of the plate 150 is thinner than that of the existing lightweight foam concrete, no crack is generated, and when curing of the waterproof plate 150 is completed, it is naturally waterproof, so that no additional waterproofing construction is necessary and air can be shortened. have.

In addition, as the thickness of the waterproof plate 150 becomes thinner, the thickness of the sound insulation unit 120 may be increased to further increase sound insulation and heat insulation effects.

After the pipe 161 is installed on the upper portion of the waterproof plate 150, which has been cured, the finishing mortar 160 is poured and cured, and a floor or floor plate is placed on top of the cured finishing mortar 160. The same floor finishing material 170 is disposed.

As a result of comparing the values for each configuration of the interlayer noise damping structure according to an embodiment of the present invention and the values for each of the commonly used interlayer noise damping structures are as follows.

Numerical values for the configuration of the inter-noise noise reduction structure according to an embodiment of the present invention
Concrete floor slab (110)
210mm or more
Sound insulation (120)
50mm or more


110mm or more


Waterproof plate (150)
20 mm
Finished mortar (160)
40mm or more

Numerical values for the structure of commonly used interlayer noise damping structures
Concrete floor slab
210mm or more
Sound insulation
30mm or more


110 mm or more
Lightweight foam concrete
40mm or more
Deadline mortar
40mm or more

The sum of the thickness of the sound insulating portion 120 and the waterproof plate 150 of the present invention is 70 mm, and the sum of the thickness of the sound insulating portion of a commonly used interlayer noise damping structure and lightweight foam concrete is also 70 mm.

On the basis of this, it can be seen that the effect of the present invention can be maximized compared to the prior art through the results of comparing the floor impact sound performance, insulation performance, curing period, and price of the interlayer noise buffer structure commonly used with the present invention.

Floor impact sound performance comparison
A) Invention structure
B) General structure
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
Light weight standardized floor impact sound (db)
Single numerical evaluation amount
L'n, AW
Weight normalized floor impact sound (db)
Single numerical evaluation amount
Li, maxAW
shame
42
40
47
45
Rating
1st grade
1st grade
Level 2
Level 3

Insulation performance comparison
F2 floor (interlayer) standard: ok <0.81 W / M² · K
A) Invention structure
B) General structure
0.534 W / M² · K
0.757 W / M² · K

Comparison of curing period
A) Invention structure
B) General structure
2-3 days
4-7 days

Price comparison
A) Invention structure
B) General structure
5930 ￦ / M²
8664 ￦ / M²

Hereinafter, with reference to FIGS. 1 to 5, it will be described with respect to a method for constructing an interlayer noise reduction structure according to an embodiment of the present invention.

2 is a flow chart of a method for constructing an inter-layer noise reduction structure according to an embodiment of the present invention, and FIG. 3 is a flow chart embodying the step of installing the settlement unit (S120) shown in FIG. 2.

And Figure 4 is a flow chart embodying the waterproof plate construction step (S130) shown in Figure 2, Figure 5 is a flow chart embodying the upper finishing step (S140) of the waterproof plate shown in FIG.

1 and 2, the method for constructing an interlayer noise-absorbing layer is first, the sound insulation portion 120 is constructed on the concrete floor slab 110. (S110)

More specifically, at least one cushioning material 121 is stacked and disposed on the concrete floor slab 110 to construct the sound insulation portion 120.

Thereafter, the settlement unit 130 is installed in the sound insulation unit 120. (S120)

Here, after proceeding with the installation of the settling prevention unit 130, at least one cushioning material 121 may be stacked on the concrete floor slab 110 to construct the sound insulation unit 120.

More specifically, referring to FIG. 3, at least one or more of the anti-settling units 130 are disposed on the sound insulation unit 120 (S121), and the upper and / or lower ends of the anti-settling units 130 are disposed at the upper and / or lower ends. Attach the insulating material 131. (S122)

Here, when the soundproofing performance of the settlement prevention unit 130 is excellent, the construction of the insulating material 131 may be excluded.

In addition, the mesh 140 is disposed on the upper portion of the sound insulation unit 120 to prevent the buffer material 121 from being scattered. (S123)

Thereafter, a waterproof plate 150 is installed on the sound insulation part 120. (S130)

More specifically, referring to FIG. 4, the waterproof plate 150 is disposed on the sound insulation part 120 (S131), and cement is poured to cure the waterproof plate 150.

As described above, the cement poured into the sound insulating portion 120 flows into the cushioning material 121 stacked and disposed on the sound insulating portion 120 and hardens, so that the root portion 151 is formed.

And the piping 161 is installed on the upper portion of the cured waterproof plate 150. (S132)

Thereafter, the waterproof plate 150 is closed. (S140)

More specifically, referring to FIG. 5, the finishing mortar 160 is poured on the upper portion of the waterproof plate 150 to cure it (S141), and the floor finishing material 170 is placed on top of the cured finishing mortar 160. Place it to finish. (S142)

As described above, the inter-layer noise reduction structure and construction method according to an embodiment of the present invention can shorten the air and obtain a cost reduction effect by replacing the previously used lightweight foam concrete with the waterproof plate 150. .

In addition, between the concrete floor slab 110 and the waterproof plate 150, by constructing the sound insulation portion 120 composed of the buffer material 121, it is possible to minimize the inter-layer noise, it is possible to increase the insulation performance effect.

As described above, optimal embodiments have been disclosed in the drawings and specifications. Although specific terms have been used herein, they are only used for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

110: concrete slab 120: sound insulation
121: cushioning material 130: settling prevention unit
131: insulating material 140: mesh
150: waterproof plate 151: root portion
160: finishing mortar 161: piping
170: floor finishing material 180: wall buffer material

Claims (15)

Concrete floor slab; A sound insulation portion for canceling the floor impact sound transmitted through the concrete floor slab; A settling prevention part for preventing settlement of the sound insulation part; A waterproof plate placed and cured in the sound insulation unit; And a finishing mortar cured by being poured over the waterproof plate. Interlayer noise-absorbing structure comprising,
The sound insulation portion is constructed on top of the concrete floor slab, and crushed to a size of 50 mm or less, in the form of chips (Ethylene, Vinyl Acetate), PE, PP, PVC, PU, EPS, rubber, and other synthetic resins. A foam material, a material of EVA or synthetic resin, and a cushioning material formed of at least one of a recycled chip are stacked and placed,
The anti-settling portion is attached with an insulating material to the upper end and / or the lower end,
After the waterproof plate is poured into the sound insulation part, it flows between the cushioning materials, and curing is completed without touching the concrete floor slab, and interlayer noise can be prevented from being formed from the waterproof plate through the inside of the sound insulation part. Buffer structure. delete delete According to claim 1,
The settlement prevention unit
At least one interlayer noise damping structure, characterized in that at least one erected in the sound insulation.
delete According to claim 1,
Interlayer noise-absorbing structure further comprises a mesh disposed on the upper portion of the sound insulation to prevent the buffer material from scattering. According to claim 1,
The waterproof plate
Interlayer noise-absorbing structure including a root portion formed on the sound insulation portion.
According to claim 1,
The waterproof plate
Interlayer noise damping structure characterized by consisting of at least one of cement, lime, mud, tar, ocher, and asphalt.
According to claim 1,
An inter-layer noise damping structure characterized in that a waterproofing operation for the construction of the cushioning material can be excluded by adjusting the water binding material ratio (W / B) of the waterproofing plate or adjusting the thickness. delete delete delete delete delete delete

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