KR200302693Y1 - A noise-interception sheet for reducing the floor impact noise - Google Patents

Abstract

The present invention provides an inorganic fibrous mixture of polyvinyl chloride, C ₆ H ₄ (COOC ₉ H ₁₉ ) ₂ with CaCO ₃ , BaSO ₄ , and conventional plasticizers to reduce floor impact sounds, particularly heavy impact sounds, in apartments such as apartments. And a sound insulating material comprising a sound insulating sheet processed into a plate after uniformly dispersing an additive such as a stabilizer and a pigment, and preferably, a sound insulating material for a floor, a sound insulating sheet and a gypsum board including a sound insulating sheet and a sound absorbing felt. It relates to a sound insulating material for walls, and improved floating floor structure and wall structure using these materials. According to the present invention, it is possible to develop a sound insulation material for floors and walls to block and reduce light impact sound and heavy impact sound in a multi-family house, and achieve improvement of the existing floating floor structure and wall structure.

Description

Sound insulation for reducing floor shock sound {A NOISE-INTERCEPTION SHEET FOR REDUCING THE FLOOR IMPACT NOISE}

The present invention relates to a sound insulation material comprising a sound insulation sheet for reducing the floor impact sound of a multi-unit house such as an apartment, and more specifically, to a sound insulation material for floor and wall, and an improved floating floor structure and wall structure using these materials. The present invention relates to the development of floor sound insulation and wall sound insulation for blocking and reducing light impact sound and heavy impact sound, and to improvement of floor and wall structure.

In general, in the floor structure of apartments, houses, public facilities, the impact sound is divided into a light impact sound and a heavy impact sound, the light impact sound is a sound of falling coins or a high-heeled sound, such as the existing sound insulation material to reduce the impact sound Although it is possible, the heavy impact sound is a dull sound such as children playing and the existing sound insulation material and the existing floor structure is difficult to reduce the weight impact sound.

In general, the floor structure of apartment houses and public facilities uses floor buffers made of various inorganic materials, organic materials, and polymers for the purpose of sound insulation and dustproofing. have:

Synthetic resin composition such as EVA which mix | blended inorganic fillers, such as calcium carbonate, clay, talc, bentonite, barium sulfate as a main component on asphalt-impregnated paper

Rubber attachments with functional fillers on fibrous felt

-Porous polystyrene foam, EVA foam, PVC foam made by adding foaming agent to polystyrene, PVC, EVA, etc.

-Composite material mixed with cork and rubber

-Inorganic materials such as gypsum board and rock wool.

However, these materials exhibit considerable vulnerabilities in problems such as sound insulation performance, workability, and economics, making them difficult to practically use. For example, it is a general evaluation that production cost is high or it is difficult to expect as much as desired for insulation and sound insulation and a dustproof effect. In the case of waste tire chips, which have recently attracted much attention, they are of great value in terms of utilizing waste materials. However, there is a problem in that the elasticity and deterioration of the rubber are caused by the occurrence of hardening and carbonization over time. It is hard to expect favorable heat insulation, sound insulation, and a dustproof effect as it arises. Therefore, there is an urgent need in the art for the development of new composite materials that can alleviate these shortcomings.

In addition, the floor impact sound transmitted to the lower layer due to the bottom impact of the top layer is known to be significantly reduced through the construction of the floating floor structure of the top layer. In general, the floating floor structure was a method of constructing lightweight foam concrete and finishing mortar after installing the above-mentioned conventional floor sound insulation material in the upper floor slab. However, the conventional floating bottom structure is excellent in the blocking performance of the light impact sound, but the heavy impact sound blocking performance is not so much improved.

Considering that most of the floor shock sounds in the domestic residential environment are particularly heavy impact sounds, improvement measures for heavy shock sound blocking are urgently required.

In addition, such a floor impact sound is transmitted to the wall of the lower layer as well as the vibration of the bottom plate of the upper layer is propagated to the sound of the room. As a result of quantitative evaluation of the floor impact sound transmitted through the wall, it is known that the weight impact sound is about 28.8-45.0% by the wall, and 46.8-63.7% in the case of the light impact sound. Therefore, the development of sound insulation materials for reducing the floor impact sound transmitted to the wall and improvement of the wall structure is also desired.

The present invention aims to provide a sound insulation material, especially a floor sound insulation material, and a sound insulation material for walls, including a new sound insulation sheet, which has improved sound insulation performance and improved construction performance and economics, to compensate for the disadvantages of existing sound insulation materials.

In addition, the present invention is to provide a new floor structure and sound insulation wall structure that can improve the existing floor structure or wall structure using the sound insulation material for the floor or sound insulation material for the wall, and significantly improve the impact resistance of heavy impact sound. The purpose.

1 is a cross-sectional view showing a sound insulation material according to the present invention.

Figure 2 is a cross-sectional view showing a sound insulating material for the floor as an example of the present invention.

3 is a cross-sectional view showing a sound insulation material for walls as an example of the present invention.

Figure 4 is a cross-sectional view showing a floating floor structure by using the sound insulation material for the floor as an example according to the present invention.

Figure 5 is a graph showing the sound insulation performance of the floor structure of the sound insulation construction of the floor sound insulation material according to the present invention.

6 is a cross-sectional view of the floating floor structure and the wall generally constructed by the prior art.

Figure 7 (a) is a cross-sectional view showing a floating floor structure applying the sound insulation material for flooring according to the present invention on the upper portion of the lightweight foam concrete, Figure 7 (b) is a cross-sectional view showing a floating floor structure applying the floor sound insulation material to the lower portion of lightweight foam concrete. to be.

8 is a graph showing a comparison of the amount of reduction in light weight impact sound and weight impact sound according to the position of the sound insulating material.

9 is a cross-sectional view showing a sound insulation wall structure constructed by using sound insulation material for walls, which is an example of the present invention.

10 is a graph showing the sound insulation performance of the sound insulation wall structure constructed according to the present invention.

Explanation of symbols for the main parts of the drawings

1: sound insulation sheet 2: adhesive layer

3: release paper 4: sound insulation

5: Sound absorption felt (porous glass fiber mat) 6: Gypsum board

7: ceiling downstairs 8: concrete slab

9: lightweight foam concrete 10: floor sound insulation

11: 1st Plastering Layer (Finish Mortar) 12: 2nd Plastering Layer (Metalas)

13: cardboard or vinyl sheet 14: concrete wall

15: wallpaper finish 20: sound insulation for walls

In order to achieve the above object, the present invention provides a sound insulating sheet composition, and a sound insulating sheet processed into a plate.

The sound insulating sheet composition according to the present invention is a homogeneous dispersion of thermoplastic synthetic resin, inorganic fibrous mixture, and common additives having excellent weatherability and physical properties, and examples of the thermoplastic synthetic resin include polyolefin, polyvinyl chloride, polyidene chloride, polyacetyl , Polyurethane, polyacrylic, thermoplastic polyurethane resin and bitumin-based styrene butadiene styrene modified mixtures, and examples of the inorganic fiber mixtures are C ₆ H ₄ (COOC ₉ H ₁₉ ) ₂ , CaCO ₃ , BaSO ₄ And additives include plasticizers such as Z _N (C ₁₇ H ₃₅ COO) ₂ , Cd-Ba-Zn-based stabilizers, and pigments such as carbon black. The sound insulating material according to the present invention is a thermoplastic synthetic resin. _{, C 6 H 4 (COOC 9} H 19) 2, CaCO 3, BaSO, and a mixture of _4, and homogenized by addition of a conventional plasticizer, a stabilizer, a pigment and an additive mixture as the inorganic fiber mixture It is prepared from the dispersed composition.

In the sound insulation sheet composition according to the present invention, the preferred content of each component is 20 to 35% by weight of thermoplastic resin, 50 to 75% by weight of inorganic fibrous mixture, and 0.5 to 10% by weight of additives when the weight of the total composition is 100 %to be.

The sound insulation sheet according to the present invention is processed through a plate-like composition through the extrusion and discharge, thickness adjustment, sheet formation, guide, cooling, slitting, cutting, and packaging processes.

The sound insulation sheet for reducing the floor impact sound according to the present invention is as follows.

① The sheet thickness is thin and the surface density (2.0㎜ ~ 3.0mm thickness and 3.6㎏ / ㎡ ~ 4.8kg / m ² ) has the sound insulation performance that exceeds the law of mass. It can be used in parallel to show high sound insulation effect (improved amount: more than STC 5dB) on living sound.

② The resonance occurring at a certain frequency is small. Therefore, there is little deterioration of the acoustic transmission loss due to the resonance effect generated in the plate sound insulating material.

③ Not only does it block moisture from outside, but also contains no harmful substances, so it can be used safely in any living space.

④ Since it is produced in a certain size, it can be easily installed on any board. It can also be easily cut with katakal.

⑤ The thickness and size can be selected according to the purpose, and the higher sound insulation effect can be obtained when the boards and sound absorbing materials such as gypsum board are installed in parallel.

The sound insulation sheet according to the present invention can be used in various construction fields, and can be used for floors, walls, ceilings, lightweight partitions, etc. of spaces in which vibrations and noises are generated.

The present invention provides a sound insulation material comprising the sound insulation sheet. In a preferred embodiment, the sound insulation material according to the present invention is a soundproof tape for twist sealing, characterized in that the adhesive sheet and the release paper are laminated on the sound insulation sheet and processed into a roll shape.

The sound insulation material according to the present invention is excellent in self-adhesiveness and weather resistance, airtightness and sealing, heat resistance and cold resistance, and because of the tape form, workability is very good.

In particular, the present invention provides a sound insulating material for the floor comprising the sound insulating sheet and the sound absorbing felt.

Sound absorbing felt for reducing the impact sound used in the sound insulation material for floor according to the present invention is a porous glass fiber mat (glass fiber mat), SiO _2, Al ₂ O _3, CaO, MgO, B ₂ O _3, Na ₂ O and The long filament containing K ₂ O as a component was cut to a certain length (6-10 mm), and dissociated into short single filaments (Glass line) by a fiber decomposition device, which was formed into a layer (mat) in a molding manufacturing apparatus. After forming into a) phase, it is characterized in that the needle punching (Needle Punching) using a molding machine is produced by molding into a needle-like felt.

Features of the porous glass fiber mat (absorption felt) used in the present invention is as follows.

① The porous glass fiber mat can be used at a higher temperature (800 ° C) than glass fiber manufactured by using phenolic resin as an adhesive for vitreous fibers.

② The field of high temperature insulation material, heat insulation material, sound absorption material, etc., which are made of rock wool, asbestos, etc., which is used in the past, is also evaluated as high quality by obtaining a good result by the use of porous glass fiber mat by its specification and use.

In addition, the present invention provides a sound insulation material for walls on which the gypsum board is attached using an acrylic adhesive on the sound insulation sheet. By installing the sound insulation material on the wall, it is possible to block not only the floor impact sound transmitted through the wall, but also a considerable amount of general noise.

The present invention relates to a floating floor structure using the sound insulation material for the floor, comprising: a concrete slab including reinforcing bars, lightweight foamed concrete applied on the slab, a finishing mortar layer applied on the lightweight concrete and installed with a heating pipe, and In the floor structure of the apartment house consisting of a surface finishing layer, before and after the construction of the lightweight foam concrete, it characterized in that the sound insulating material for the floor according to the present invention is laminated.

Preferably, the sound insulation material for floor according to the present invention is characterized in that after the construction of lightweight foam concrete, laminated on the upper portion of the lightweight foam concrete.

Floating-floor structure according to the present invention is very good sound insulation performance, compared to the case of using the conventional general construction or other sound insulation materials, and is particularly useful for reducing the weight impact sound.

In addition, in a preferred embodiment of the present invention, by changing the position of the floor impact sound buffer layer to the upper portion of the lightweight foam concrete, it is more efficient to improve the breaking performance of the heavy impact sound, there is an advantage in ease of construction and maintenance. In particular, when improving the performance of existing multi-unit houses with poor floor noise blocking performance, efficient performance can be achieved through minimal structural improvement.

In addition, the present invention is to reduce the floor impact sound transmitted to the wall, after attaching the sound insulation material according to the present invention using a gypsum bond to the concrete wall, the floor impact sound reduction, characterized in that finishing the surface with a wall finishing material Provides a sound insulation wall structure for the. Such soundproof wall construction can significantly reduce the floor impact sound transmitted through the wall, and in addition, it can be expected a secondary effect such as general sound insulation and insulation.

EMBODIMENT OF THE INVENTION Below, this invention is demonstrated in detail based on an accompanying drawing and preferable embodiment. However, the following description and preferred embodiments are intended to more clearly describe the present invention and are not intended to limit the scope of the invention as defined by the appended claims.

(Example)

Composition for sound insulation sheet, sound insulation sheet and sound insulation material

The present invention was made in an attempt to develop a high-performance sound insulation sheet with a thin thickness to be applicable in various construction environments and to increase space utilization.

The sound insulation sheet according to the present invention is processed into a plate-like product by homogeneously dispersing additives such as an inorganic fiber mixture, a plasticizer, a stabilizer, and a pigment to impart soundproof and dustproof performance to thermoplastic synthetic resin having excellent weatherability and physical properties.

In a preferred embodiment of the present invention, the sound insulating sheet composition was prepared by mixing and homogeneously dispersing the chemical components shown in Table 1 in a heat mixer at about 80-100 ° C for about 1 hour. The content of each component was described in weight percent based on the total composition of 100. Composition and composition ratio of the composition for sound insulation sheet of Table 1

Raw material name Composition ratio (wt%) Example 1 Example 2 Polyvinyl chloride 30 35 CaCO ₃ 37 31 BaSO ₄ 16 14 C ₆ H ₄ (COOC ₉ H ₁₉ ) ₂ 10 15 Cd-Ba-Zn 1.0 1.3 PU 2.0 2.0 SBS Bitumin 2.5 2.5 Z _N (C ₁₇ H ₃₅ COO) ₂ 0.5 0.5 Carbon black 1.2 0.7

In a preferred embodiment of the sound insulation sheet composition according to the present invention, polyvinyl chloride facilitates the molding process of the product at high temperature by increasing the thermoplasticity, the inorganic fiber mixture is added to adjust the elasticity, strength, flexibility, Plasticizer Zn (C ₁₇ H ₃₅ COO) ₂ was used to enhance the dispersibility, thermal stability, cold resistance and the like.

In addition, in a preferred embodiment of the sound insulating sheet composition according to the present invention, stabilizer Cd-Ba-Zn was used to prevent thermal decomposition and thereby lower the physical properties of the finished product and stabilize the bonding of the polymers.

Each of the sound insulating sheets 1 was calendered in a gloss press roller and molded at a speed of 3 m per minute under a temperature of 80 to 100 ° C. and a pressure condition of 150 to 250 kg / cm 2.

The sound insulation sheet can be manufactured in various sizes in view of various purposes as follows.

Product Name Dimensions (thickness X width X width) Weight (kg) Remarks Sound insulation sheet (1.5 × 1000 × 1000) mm 2.7 The size can be changed according to the purpose used. (2.0 × 1000 × 1000) mm 3.6 (2.5 × 1000 × 1000) mm 4.5 (3.0 × 1000 × 1000) mm 5.4

The physical properties of the resulting sound insulating sheet are shown in Table 3. Table 3 Physical properties of the sound insulating sheet

Classification Test result Test Methods Example 1 Example 2 Thickness (mm) 2.0 2.0 importance 1.80 2.0 KS M 3016 Hardness (Shore A) 95 93 Tensile Strength (㎏f / ㎠) Vertical direction 58.9 55.2 KS M 6518 Transverse 47.1 48.8 Tear strength (kgf / cm) Vertical direction 34.2 35.1 Transverse 41.8 40.6 Elongation (%) Vertical direction 89.8 80.1 Transverse 99.1 92.1 Adhesive strength (㎏f / 25㎜) 2.4 3.0 KS A 1529 Heat resistance clear clear 80 ℃, 24HR flowability Low temperature resistant clear clear -20 ℃, 24HR appearance change Flame retardant 94V-1 94-V UL 94

In order to evaluate the sound insulation performance of the sound insulation sheet 1 according to Example 1, two pieces 1 and 2 were taken to evaluate sound insulation performance, and the results are shown in Table 4 (STC standard, noise shielding index: sound transmission class) Table 4

Frequency Short 1 Short 2 Remark STC ⁽¹⁾ STC ⁽²⁾ 100 16.7 18.9 Results: The STCs of fragments 1 and 2 correspond to 30 dB and 33 dB, respectively. 125 17.3 22.1 250 19.5 23 500 26.6 28.3 1000 30.9 32.8 2000 35.6 38.6 4000 40.8 45.2

The sound insulation sheet manufactured according to the present invention has the following characteristics.

① Excellent sound insulation performance

② Anti resonance

③ Moisture proof, flame retardant effect and harmless to human body

④ Easy construction

The sound insulation sheet according to the present invention can form a sound insulation material for use as a tape for sealing sealant which is an auxiliary material for sound insulation purposes.

In a preferred embodiment of the present invention with reference to Figure 1, the sound insulating material 4 is made of the sound insulating sheet 1, the adhesive layer 2, and the release paper 3 according to the present invention is laminated, It is processed into roll shape.

The joint sealing tape type sound insulating material 4 is excellent in self-adhesiveness and weather resistance, airtightness and sealing property, heat resistance and cold resistance, and it is shown that the workability is very good since it is a tape type.

Floor sound insulation

Referring to Figure 2, the sound insulating material for a floor of a preferred embodiment according to the present invention is composed of a sound insulating sheet 1 and a porous glass fiber mat (5) according to the present invention.

The porous glass fiber mat 5 dissociates the super magnetic fibers into a certain length (6-10 mm), and dissociates the super magnetic fibers into superfine fibers (Glass line) by a fiber decomposition apparatus, and then converts the super magnetic fibers into a molding production apparatus. After forming into a layer, it is molded into a felt by a needle punching machine using a needle punching machine.

The use of a porous glass fiber mat can achieve useful results also in the fields of use such as high-temperature insulating materials, heat insulating materials, and sound absorbing materials using rock wool, asbestos, and the like, which are conventionally used.

The porous glass fiber mat used in the preferred embodiment of the present invention has the following components and properties.

① The properties of short fiber constituting porous glass fiber mat are based on KSL 2507 (JIS-R-3413) E-Glass system for electrical insulation.

1) Composition of Elemental Element

SiO ₂ : 52-56% Al ₂ O ₃ : 12-16%

CaO: 15-25% MgO: 0-6%

B ₂ O ₃ : 8 -13% Na ₂ + K ₂ O: 0-1%

(The alkali component is 0.8% or less)

2) hard fiber

9μ average (KSL 2507)

3) weathering resistance

According to the method prescribed in KSL 2507, weathering resistance is 95% or more.

4) Heat resistance: 800 ℃

② Physical Properties of Porous Fiberglass Mats

1) Organization and flexibility of glass felt

It is made in felt form by intertwining ultra-short staple fibers in a uniform manner. 2) porous thickness

There are 3 mm / 4 mm / 6 mm / 8 mm / 10 mm as standard products, but others can be manufactured at the request of the consumer.

3) size of porous fiberglass mat

The standard product has the following size.

Width: 1,000mm / 1350mm

Length: 20M (3mm / 4mm / 6mm) 15M (8mm / 10mm)

4) Specific gravity of porous glass fiber mat

3㎜: 80㎏ / ㎥ 4㎜: 84㎏ / ㎥ 6㎜: 90㎏ / ㎥

8㎜: 94㎏ / ㎥ 10㎜: 100㎏ / ㎥

5) Insulation performance

The test results for the insulation performance of the porous glass fiber mat are shown in Table 5. Table 5 Insulation performance of the porous glass fiber mat

buying 1 glass fiber felt 6 mm Glass fiber felt 6 mm 2 sheets 3 sheets of glass fiber felt 6mm 4 sheets of glass fiber felt 6mm T1 T2 T3 T4 T2 T3 T4 T2 T3 T4 T2 T3 T4 300 260 64 21 265 51 21 265 45 21 270 42 21 400 325 78 20 340 62 20 340 55 20 344 50 20 500 440 144 23 445 86 23 450 69 23 440 62 23

T1: furnace core temperature T2: furnace internal temperature

T3: felt outer temperature T4: room temperature

6) Sound absorption rate according to porous glass fiber mat thickness

The sound absorption rate according to the thickness of the porous glass fiber mat is shown in Table 6. Table 6 Sound absorption rate of the porous glass fiber mat

Thickness (mm) Hz air layer (mm) Reverberation chamber sound absorption 125 250 500 1000 2000 4000 5 0 0.03 0.04 0.16 0.18 0.35 0.75 40 0.08 0.15 0.48 0.96 0.91 0.47 10 0 0.03 0.06 0.48 0.43 0.56 0.66 40 0.08 0.20 0.53 0.78 0.80 0.80 13 0 0.03 0.09 0.21 0.56 0.66 0.68 40 0.08 0.24 0.64 0.82 0.78 0.80 15 0 0.06 0.13 0.35 0.62 0.67 0.74 40 0.10 0.23 0.68 0.82 0.77 0.80

The floor sound insulation material laminated the sound insulation sheet according to the present invention on the porous glass fiber mat as described above has a superior sound insulation performance compared to the combined structure of conventional foamed styrene, tire chips, glass wool, soundproof board and styrofoam, etc. It was found to have.

This fact is that when using the sound insulation material for floors according to the present invention under similar float bottom structure, as described below for the float bottom structure, the weight impact sound is L-50 and the light impact sound is L-58. In the case of using the existing sound insulating material, as shown in Table 8, the weight impact sound is L-54 to 55, it can be seen more clearly from the light impact sound L-69.

Sound insulation for walls

Wall sound insulation material 20 for use in the wall sound insulation structure for reducing the floor impact sound is to integrate the high-performance sound insulation sheet 1 and the general building gypsum board (6) according to the present invention as shown in FIG. At this time, in order to integrate the sound insulating sheet 1 and the gypsum board 6, an acrylic adhesive was used to be firmly integrated. Preferably, the thickness of the sound insulating sheet is 1 to 3 mm, more preferably 2 mm, and the thickness of the gypsum board is 8 to 10 mm, more preferably 9.5 mm. The sound insulation effect of the sound insulation material 20 according to the present invention can be seen in the excellent sound insulation performance of the sound insulation wall constructed using this, as will be described later.

Floating floor structure

Referring to Figure 4, the floor sound insulation structure using a floor sound insulation material according to the present invention is applied to the concrete slab 8 including the reinforcement, lightweight foamed concrete (9) applied on the slab 8, the lightweight concrete In the floor structure of a common house consisting of finishing mortar layers 11 and 12 and heating surface finishing layers 13 on which heating piping is installed, before and after construction of lightweight foam concrete 9, On the top or bottom of the sound insulating material 10 according to the present invention, that is to laminate the sound insulating material for the floor is laminated on the porous glass fiber mat.

Figure 4 shows a preferred embodiment of the soundproof construction of the floating floor structure according to the present invention, a layer of concrete slab (8) including reinforcing bar on the ceiling (7) of the lower floor and lightweight foamed concrete (9) for thermal insulation A layer is provided, on which a layer of floor sound insulation material 10 is laminated, on which a finishing mortar layer of the first plastering 11 and the second plastering 12 is provided, and the finishing material 13 such as cardboard or vinyl sheet. ) Layers were stacked. At this time, the floor sound insulating material 10 is provided in the L-shape with respect to the concrete wall (6).

In order to compare with the soundproofing of the present invention, the floor structure of the general construction without the soundproofing was constructed, which is shown in FIG. That is, the general construction is a layer of concrete slab (8), lightweight foam concrete (9), finishing mortar layer of the primary plastering 11 and secondary plastering 12, the finishing layer 13, such as cardboard or vinyl sheet It is a laminated structure.

In order to measure the sound insulation performance of each floating floor structure formed by the above process, the following conditions and methods were tested.

1) Target floor structure and condition

Paper board + finish mortar 40 + light foam concrete 80 + slab 150

At this time, a curing site was constructed to protect the paperboard, and the furniture and other household items at the time of residence were excluded just before moving in.

2) Target measurement sound source: heavy impact source, light impact source

3) Measuring method: Simultaneous measurement at 5 lower sound absorbing points with 1 upper part

4) Measurement item: Floor impact sound (light weight and weight)

5) Field Measurement Equipment and Programs

Sound recording (dummy head), data recorder (8 inches), field measurement, sound insulation performance measurement (sound source room), measurement and analysis program

In order to confirm the improvement of the weight impact sound reduction effect in real multi-family houses by each floating floor structure, the method of evaluating the floor impact sound focused on the A characteristic of the sound level meter as specified by the Japanese Industrial Standard (JIS) and the Japanese Institute of Architecture. Floor insulation performance was evaluated.

This is the minimum reference curve when the measurement of the 1/1 octave band center frequency (63, 125, 250, 500, 1000, 2000, 4000 Hz) is plotted on the graph and the measurement is below any reference curve in all frequency bands. The sound insulation rating can be found by reading

The sound insulation grade of the reference curve is 5dB intervals, and it is evaluated by the sound insulation dimension of 1dB interval for more accurate analysis, and the lower L value means the better sound insulation performance of the floor impact sound.

In Japan, sound insulation standards and grades for floor impact sound are specified in JIS A 1419-1979. This standard is designed to properly evaluate the sound insulation performance of buildings, and uses the reference frequency characteristic curve of the sound insulation rating for floor impact sound levels. The sound insulation grade is determined and it is also applied in Korea. In the graph, the reference frequency characteristic curves and the grades of the floor impact sound levels are shown, and the types of sound insulation classes for the houses are shown in Table 7 below.

Table 7 Types of Performance Class for Floor Impact Sound Levels (JIS A 1419)

Rank 5 4 3 2 One Performance level weight L-50 L-55 L-60 L-65 less than rank2 Light weight L-45 L-50 L-55 L-60 less than rank2 Remarks Especially excellent Great basic Slightly lower etc

As a floating bottom structure using the floor impact sound buffer 10 according to the present invention, the sound insulation performance of the sound insulation structure of FIG. 4 using a porous glass fiber mat and a 1.2 mm sound insulation sheet is shown in FIG. Industrial Standard (JIS) A1419) is shown graphically.

In addition, Table 8 shows the sound insulation effect of the sound insulation floor structure (FIG. 4) and the general floor structure (FIG. 6) to which the sound insulation layer is not applied according to an embodiment of the present invention. As shown in Table 8, the floating floor structure according to the present invention was shown as a heavy impact sound L-50 and a lightweight impact sound L-58, and the improvement compared to general construction is 11, In the heavy shock source, it was found to have a reduction effect of 4 to 5 degrees.

Table 8 Sound insulation effect of floating construction according to the general construction and the present invention

General construction Sound insulation Improvement amount (L index) Light impact L-69 L-58 11 Heavy impact sound L-54 to 55 L-50 4 to 5

In the floating floor structure, the cushioning layer by the floor sound insulation material may be located above or below the lightweight foamed concrete, each of which is shown in FIG.

The structure of FIG. 7A is provided with a layer of concrete slab 8 and a layer of lightweight foamed concrete 9 on the ceiling 7 below, with a layer of floor sound insulation material 10 laminated thereon, with a primary plastering layer 11 thereon. ) And a secondary mortar layer of secondary plastering 12 are provided, and a layer of finish 13, such as cardboard or vinyl sheet, is laminated. At this time, the floor sound insulating material 10 was provided in the L-shape for the concrete wall (6).

The structure of Fig. 7b is provided with a layer of concrete slab 8 on the ceiling 7 of the lower floor, and a layer of floor sound insulation material 10 is laminated before the lightweight foamed concrete 9 is provided, on which the lightweight foam concrete 9 ) Layer, followed by a finishing mortar layer of primary plastering 11 and secondary plastering 12, and a layer of finishing material 13, such as cardboard or vinyl sheet, was laminated. At this time, the floor sound insulating material 10 was provided in the L-shape for the concrete wall (6).

In order to confirm the effect of reducing the weight impact sound in the multi-family house, the location of the floor shock sound absorbing layer was changed and measured according to the measurement method prescribed in KS F 2810, respectively.

As a result of the evaluation, as shown in Figure 8, according to the position of the floor sound insulation layer, there was a slight difference in the amount of noise reduction, the floor structure according to a preferred embodiment of the present invention, as shown in Figure 7a the bottom shock sound absorbing layer 10 After the installation of the floor slab (8) and lightweight foam concrete (9) is installed on the upper portion of the lightweight foam concrete, it can be seen that the weight impact sound blocking performance is more improved. For light impact sound, the structure of FIG. 7B showed a slightly higher reduction amount, but the structure of FIGS. 7A and 7B showed a significant reduction compared to general construction.

Therefore, it would be more desirable to adopt the structure of Fig. 7A for the reduction of the more frequent and problematic weight impact sound. The construction order of the preferred floating floor structure of the present invention is to laminate the lightweight foamed concrete (9) on the concrete slab (8), and then laminated the floor sound insulation material (10) consisting of a porous glass fiber mat and sound insulation sheet, and flooring And curing, heating pipe installation process, and undergoes a finishing mortar and finishing mortar curing process.

Sound insulation wall structure

The wall sound insulation structure for reducing the floor impact sound is a pattern integrating the sound insulation sheet 1 and the gypsum board 6 according to the present invention, which is a high performance sound insulation material between the existing concrete wall 14 and the wall finishing material 15, as shown in FIG. Wall soundproofing material 20 according to the invention is a structure to be constructed by a gypsum bond. At this time, in order to integrate the gypsum board (6) and the sound insulating sheet (1) it was to be firmly integrated using an acrylic adhesive. In addition, the soundproofing material was constructed by using a construction gypsum bond generally used for the construction of gypsum board. At this time, the sound insulation and insulation performance could be improved by the air layer generated by the gypsum board. In order to improve the performance by increasing the adhesion between the wall and the gypsum bond, the gypsum bond and the sound insulation, G2 and G3 adhesives were applied to the wall and the sound insulation material in advance to increase the adhesion.

In the case of a wall structure in which a sound insulation material for a wall with a 2 mm sound insulation sheet and a 9.5 mm gypsum board is installed on the wall, the sound insulation effect is as shown in the L curve of FIG. Compared with the wall of the construction (Fig. 6) it was shown that there is a reduction effect of about 2, 4 in the L index in weight and light weight (maximum reduction amount 5).

Table 9 Sound Insulation Effects of General Construction and Soundproofing According to the Invention (Wall Structure)

General construction Sound insulation Improvement amount (L index) Light impact L-66 L-62 4 Heavy impact sound L-49 L-47 2

The wall sound insulation structure was applied to actual apartment houses (42 pyeong, 4 bedrooms), and the floor shock sound insulation performance was measured according to the measurement method specified in KS F 2810. In order to evaluate the sound insulation performance of the room by sound wall construction, the sound insulation performance of each room in the household was measured by KS F 2809. As a result of the actual measurement, it was found that the improvement of the floor impact sound blocking performance by the sound insulation material applied to the sound insulation material has been significantly improved. It has been shown to be quite effective.

According to the present invention, a sound insulation sheet for reducing heavy impact sound, which is frequently generated in domestic residential situations among floor impact sounds of apartments, such as apartments, and floor sound insulation materials and wall sound insulation materials using the same, improved floor structure and sound insulation using the You can get a wall.

The sound insulation sheet for floor impact sound reduction according to the present invention has a sound insulation performance that exceeds the law of mass because of its thin thickness and large surface density, so that it can be used in parallel with boards, and has a high sound insulation effect (improved amount: STC 5dB or more). Exert. In addition, since the resonance occurring at a specific frequency is small, there is little deterioration of the acoustic transmission loss due to the resonance effect generated in the plate sound insulation material. Due to the nature of the material, it not only blocks moisture from entering the outside but also contains no harmful substances, so it can be used safely in any living space. In addition, since it is produced in a certain size, it can be easily installed on any board, it can select the thickness and size according to the purpose, and when the boards and sound-absorbing materials such as gypsum board are installed in parallel, a higher sound insulation effect can be obtained.

In the case of the floor sound insulating material according to the present invention, while including the advantages due to the sound insulating sheet as it is, due to the porous glass fiber mat used in parallel, it can be used even at high temperatures, and also excellent insulation.

Floating-floor structure according to the present invention is very excellent sound insulation performance compared to the case of using the conventional general construction, or other sound insulation materials.

In addition, by changing the position of the sound insulating material layer for cushioning the floor impact sound to the upper portion of the lightweight foam concrete, it is very efficient in improving the breaking performance of the heavy impact sound, there is an advantage in ease of construction and maintenance. In particular, in case of construction on top of lightweight foam concrete, it is possible to minimize the process of floor slab cleaning required for the installation of buffer layer, and it is possible to reduce labor cost and minimize the time required for the process, thereby improving economical and constructability. do. In addition, if the floor structure of the existing MDU is improved to the floating floor structure, only the removal of the upper mortar layer can be carried out to construct the floating floor structure, thereby minimizing the time required for the construction of the floating floor structure, thereby remodeling and living environment. The value is very high in performance improvement business.

In addition, by the wall sound insulation construction applying the sound insulation material for the wall including the sound insulation sheet, by improving the wall structure, it is possible to significantly block the floor impact sound transmitted by the wall, which is not only the floor impact sound blocking performance but also the sound insulation of the wall Performance There is also a significant effect on improving the thermal performance, such as increasing the body and the heat transmission rate of the wall.

Claims (6)

A thermoplastic synthetic resin polyester as vinyl chloride, an inorganic fiber, a mixture _{C 6 H 4 (COOC 9 H} 19) 2, CaCO 3, and BaSO mixture of _4, and was homogeneously mixed and dispersed in a conventional plasticizer, a stabilizer, a pigment as an additive After that, the sound insulating material comprising a sound insulating sheet processed into a plate shape. The sound insulating material according to claim 1, wherein a sound absorbing felt is laminated on the sound insulating sheet and used for the floor. The method according to claim 2, wherein the sound-absorbing felt is cut to the length of 6-10 mm of ultra long fiber consisting of SiO _2, Al ₂ O _3, CaO, MgO, B ₂ O _3, Na ₂ O and K ₂ O as a component And a porous glass fiber mat manufactured by dissociating into short magnetic fibers by a fiber decomposing device, and layering them in a molding production apparatus, and then molding the needle into a needle-like felt by using a needle punching machine. The cavity according to claim 2 or 3, wherein the cavity comprises a concrete slab comprising reinforcing bars, a lightweight foamed concrete applied on the slab, a finishing mortar layer applied on the lightweight concrete and installed with heating piping, and a surface finishing layer thereon. In the floor structure of the house, after the construction of the lightweight foam concrete, that is, the sound insulating material for the floor is laminated on the top of the lightweight foam concrete to provide a floating floor structure for reducing the floor impact sound. The sound insulating material according to claim 1, wherein a gypsum board having an thickness of 8 to 10 mm is attached to the sound insulating sheet processed into a plate having a thickness of 1 to 3 mm using an acrylic adhesive to be used for a wall. The sound insulating material according to claim 5, wherein after the sound insulating material for the wall is attached to the concrete wall using a gypsum bond, the surface is finished with a wall finishing material, thereby providing a sound insulating wall structure for reducing floor impact sound.