KR20060056686A - Soundproofing between floors and pour-in-place method - Google Patents

Abstract

The present invention provides an interlayer sound insulating material comprising: an expanded polypropylene layer made of expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm; Foamed polystyrofoam having a density of 27 to 37kg / m ³ and a thickness of 11 to 15mm, laminated on the upper surface of the expanded polypropylene layer, having a height of 1 to 5mm on the bottom, and forming a plurality of protrusions spaced apart from each other A styrofoam layer; A nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm, the nonwoven fabric layer laminated on an upper surface of the expanded polystyrene foam layer; It provides an interlayer sound insulating material comprising a polyethylene film layer laminated on the upper surface of the nonwoven fabric layer.

Interlayer sound insulation, light sound, heavy sound

Description

Soundproofing Between Floors And Pour-in-Place Method}             

1 is a schematic diagram showing a typical interlayer noise transmission route.

2 is a sectional perspective view showing an interlayer sound insulating material according to a first embodiment of the present invention;

3 is a cross-sectional perspective view showing an interlayer sound insulating material according to a second preferred embodiment of the present invention;

Figure 4 is a graph showing the impact sound absorption effect of the interlayer sound insulation material according to an embodiment of the present invention,

5 is a flow chart showing a construction method of the interlayer sound insulating material according to a preferred embodiment of the present invention.

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

(Figure 2)

110: expanded polypropylene layer 120: expanded polystyrene foam layer

130: nonwoven fabric layer 140: polyethylene film layer

150: wall sound insulation layer

(Figure 3)

210: expanded polystyrene foam layer 220: expanded polypropylene layer

230: nonwoven fabric layer 240: polyethylene film layer

250: wall sound insulation layer

(Figure 5)

S100: wall sound insulation layer installation step S200: first layer lamination step

S300: first layer taping step S400: second layer stacking step

S500: second layer taping step S600: nonwoven fabric layer stacking step

S700: Nonwoven Layer Taping Step

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to sound insulation materials, and more particularly, to an interlayer sound insulation material installed on a floor of a building to prevent noise between floors and a construction method thereof.

In general, in a multi-family house such as an apartment, residential complex, and multi-family house, the floor vibrates when a person walks or falls on the upper floor, thereby generating floor impact sounds. The floor impact sound is transmitted to the lower floor as it is through a floor or a wall with only a part of the attenuated sound, causing noise.

1 is a schematic diagram showing a general inter-layer noise transmission route. As shown in FIG. 1, when there is an impact source that impacts the floor, such as a person or an object, the shock generated by the impact source is transmitted to the lower floor through the floor or the wall. At this time, it is known that about 70% of the impact is transmitted through the bottom, and the remaining 30% is transmitted through the wall. Such a floor impact sound is a light sound composed of a high frequency (1 ~ 2.5KHz) sound generated by the drop of a small object, and a low frequency (400 caused by falling of a heavy object, walking of an adult, running of a child, etc. ~ 800Hz) is divided into heavy sound consisting of sound in the band.

On the other hand, various methods have been tried to reduce or eliminate interlayer noise as described above.

In Europe, such as France and Germany, a dustproof material such as glass wool is installed on a concrete slab and a so-called 'floor floor, access floor' structure is laminated. However, this floating floor structure is mainly a structure that can prevent the transmission of light sound, it is evaluated that it is not suitable for a lot of heavy sound generation in Korea.

In addition, another method is to form a light-bubble concrete layer on the concrete slab layer, install a heating pipe, form a finishing mortar layer, and then install a floor decorative material thereon. However, this method also does not effectively block the generation of noise and vibration because the light attenuating role of the light-bubble concrete layer and the floor decorative material, which should be part of the noise attenuation role, is insignificant.

An object of the present invention to solve the above problems is to provide an interlayer sound insulation material and a construction method that can effectively block not only light weight noise but also weight noise.

Another object of the present invention is to provide an interlayer sound insulation material and a construction method thereof that can block not only the noise transmitted through the floor but also the noise transmitted through the wall.

In order to achieve the above object, the present invention provides an interlayer sound insulating material, comprising: a expanded polypropylene layer made of expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm; Foamed polystyrofoam having a density of 27 to 37kg / m ³ and a thickness of 11 to 15mm, laminated on the upper surface of the expanded polypropylene layer, having a height of 1 to 5mm on the bottom, and forming a plurality of protrusions spaced apart from each other A styrofoam layer; A nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm, the nonwoven fabric layer laminated on an upper surface of the expanded polystyrene foam layer; It provides an interlayer sound insulating material comprising a polyethylene film layer laminated on the upper surface of the nonwoven fabric layer.

In addition, the present invention is an interlayer sound insulating material, made of foamed polystyrofoam of density 27 ~ 37kg / m ³ , thickness 11 ~ 15mm, having a height of 1 ~ 5mm on the bottom and forming a plurality of projections spaced apart from each other A layer; A foamed polypropylene layer made of expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm and laminated on an upper surface of the expanded polystyrene foam layer; A nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm, the nonwoven fabric layer laminated on an upper surface of the expanded polypropylene layer; It provides an interlayer sound insulating material comprising a polyethylene film layer laminated on the upper surface of the nonwoven fabric layer.

In addition, the present invention provides a method for constructing an interlayer sound insulating material, comprising: a wall sound insulation layer installation step of attaching polyethylene having a predetermined height to a wall surface that meets a floor; A first layer lamination step of selecting any one of a plurality of expanded polypropylenes or expanded styrofoams and installing them in close contact; A first layer taping step of sealing a gap generated between any one of foamed polypropylene and foamed styrofoam tightly installed in the first layer stacking step with a waterproof tape; When the foamed polypropylene is installed in the first layer lamination step, a plurality of foamed styrofoam is installed in close contact, and when the foamed styrofoam is installed in the first layer lamination step, a second layer lamination step Wow; A second layer taping step of sealing a gap generated between any one of foamed polypropylene and foamed styrofoam tightly installed in the second layer stacking step with a waterproof tape; A non-woven fabric layer laminating step of closely installing a plurality of nonwoven fabrics on the foamed polystyrofoam or foamed styrofoam upper surface through the second layer taping step and laminating a polyethylene film layer on the upper surface of the nonwoven fabric; It provides a method of installing the interlayer sound insulating material, characterized in that it comprises a non-woven fabric layer taping step of sealing the gap generated between adjacent non-woven fabrics with a waterproof tape during the non-woven fabric layer stacking step.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a cross-sectional perspective view showing an interlayer sound insulation material according to a preferred embodiment of the present invention. As shown in FIG. 2, the interlayer sound insulating material 100 according to a preferred embodiment of the present invention includes a foamed polypropylene layer 110, a foamed polystyrofoam layer 120, a nonwoven fabric layer 130, and a polyethylene film layer 140. It further comprises a wall sound insulating layer 150.

The foamed polypropylene layer 110 is a layer made of foamed polypropylene, and is a part mainly responsible for absorbing light sound. Preferably, expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm is used.

The foamed polystyrene foam layer 120 is a layer made of foamed polystyrofoam laminated on the upper surface of the foamed polypropylene layer 110, and is a part that is responsible for absorbing and insulating a portion of light and heavy sound. Preferably, foamed polystyrofoam having a density of 27 to 37 kg / m ³ and a thickness of 11 to 15 mm is used. In particular, the expanded polystyrene foam layer 120 forms a plurality of protrusions 122 spaced apart from each other on the bottom. The protrusion 122 generates a gap between the foamed polypropylene layer 110 and the foamed polystyrofoam layer 120 to obtain a vibration absorbing layer forming effect, and increases the flexibility of the foamed polystyrofoam layer 120 to increase shock absorption. Improve. The protrusion 122 is preferably formed to a height of 1 ~ 5mm.

The nonwoven fabric layer 130 is made of a nonwoven fabric laminated on the upper surface of the expanded polystyrene foam layer 120, and is a portion that is responsible for absorbing heavy sound. The nonwoven fabric layer 130 has a structure in which numerous fibers are entangled with each other to primarily absorb heavy sound composed of low frequency sounds in the 400 to 800 Hz band. Preferably, a nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm is used.

The polyethylene film layer 140 is made of thin polyethylene laminated on the upper surface of the nonwoven fabric layer 130. Since the polyethylene film layer 140 has a waterproof function, it prevents the sound insulation effect degradation phenomenon due to the penetration of water. The polyethylene film layer 140 may be formed using a method of laminating a separate layer on the upper surface of the nonwoven fabric and a method of directly coating the upper surface of the nonwoven fabric.

The wall sound insulation layer 150 is made of polyethylene installed on at least one side of at least one surface of the foamed polypropylene layer, the foamed polystyrene foam layer and the nonwoven fabric layer. The wall sound insulation layer 150 serves to block the noise of about 30% transmitted through the wall of the overall noise.

(Example 1)

Expanded polypropylene with a density of 12.4 kg / m ³ and a thickness of 10 mm; Expanded polystyrofoam with projections of density 32 kg / m ³ , thickness 13 mm, height 3 mm; An interlayer sound insulation material was prepared using a nonwoven fabric coated with polyethylene having a thickness of 5 denier and a thickness of 5 mm.

(Example 2)

Expanded polypropylene with a density of 13.2 kg / m ³ and a thickness of 12 mm; Expanded polystyrofoam with a projection of density 36 kg / m ³ , thickness 10 mm, height 3 mm; An interlayer sound insulation material was manufactured using a nonwoven fabric coated with polyethylene having a thickness of 6 denier and a thickness of 5 mm.

3 is a cross-sectional perspective view showing an interlayer sound insulating material according to a second preferred embodiment of the present invention. As shown in FIG. 3, the interlayer sound insulating material 200 according to the second exemplary embodiment of the present invention may include a foamed polystyrene foam layer 210, a foamed polypropylene layer 220, a nonwoven fabric layer 230, and a polyethylene film layer 240. ), And further includes a wall sound insulation layer 250.

The foamed polystyrofoam layer 210 is a layer made of foamed polystyrofoam, and is a part that is responsible for absorption and heat insulation of a portion of light and heavy sound. Preferably, foamed polystyrofoam having a density of 27 to 37 kg / m ³ and a thickness of 11 to 15 mm is used. In particular, the foamed polystyrene foam layer 210 forms a plurality of protrusions 212 spaced apart from each other on the bottom. The protrusion 212 generates a gap between the bottom and the foamed polystyrene foam layer 210 to obtain a vibration absorbing layer forming effect, and improves the flexibility of the foamed polystyrene foam layer 210 to improve the shock absorption rate. The protrusion 212 is preferably formed to a height of 1 ~ 5mm.

The foamed polypropylene layer 220 is a layer made of foamed polypropylene stacked on the upper surface of the foamed polystyrene foam layer 210, and is mainly responsible for light weight sound absorption. Preferably, expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm is used.

The nonwoven fabric layer 230 is made of a nonwoven fabric laminated on the upper surface of the expanded polypropylene layer 220, and is a portion that is responsible for absorbing heavy sound. The nonwoven fabric layer 230 is composed of a structure in which a number of fibers are intertwined to absorb a heavy sound consisting of low frequency sound in the 400 ~ 800Hz band primarily. Preferably, a nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm is used.

The polyethylene film layer 240 is made of thin polyethylene laminated on the upper surface of the nonwoven fabric layer 230. Since the polyethylene film layer 240 has a waterproof function, it is possible to prevent the effect of lowering the sound insulation effect due to the penetration of water. The polyethylene film layer 240 may be formed using a method of laminating a separate layer on the upper surface of the nonwoven fabric and a method of directly coating the upper surface of the nonwoven fabric.

The wall sound insulation layer 250 is made of polyethylene installed on at least one side of at least one surface of the expanded polypropylene layer, the expanded polystyrene foam layer and the nonwoven fabric layer. The wall sound insulation layer 250 serves to block the noise of about 30% transmitted through the wall of the overall noise.

(Example 3)

Foamed polystyrofoam with densities of 30 kg / m ³ , 15 mm thick, 4 mm high; Expanded polypropylene with a density of 13 kg / m ³ and a thickness of 10 mm; An interlayer sound insulation material was prepared using a nonwoven fabric coated with polyethylene having a thickness of 4 denier and a thickness of 6 mm.

(Example 4)

Foamed polystyrofoam with projections of density 32 kg / m ³ , thickness 10 mm, height 3 mm; Expanded polypropylene with a density of 12.4 kg / m ³ and a thickness of 10 mm; An interlayer sound insulation material was prepared using a nonwoven fabric coated with polyethylene having a thickness of 5 denier and a thickness of 5 mm.

Figure 4 is a graph showing the impact sound absorption effect of the interlayer sound insulating material according to an embodiment of the present invention. Figure 4 is a graph of the sound insulation effect of the interlayer sound insulating material prepared by the above-described (Example 1) as shown in Table 1 and Table 2.

division Frequency (Hz) 31.5 63 125 250 500 1k 2k When no sound insulation material is installed 69 40 59 57 53 43 27 Example Lightweight Sound Insulation Effect  67.68  38.24  57.89  57.56  36.05  22.02  21.86 When no sound insulation material is installed 87 77 66 54 41 38 30 Lightweight Sound Insulation  80.21  69.42  64.12  53.68  43.20  35.84  28.18

Lightweight impact sound Legal standards SM2 Result 50 dB or less 44 dB Heavy impact sound Legal standards SM2 Result 50 dB or less 47 dB

(Volume 30m ³ , reverberation time 0.5 seconds for each frequency)

5 is a flowchart illustrating a construction method of an interlayer sound insulating material according to a preferred embodiment of the present invention. As shown in FIG. 5, a method of constructing an interlayer sound insulation material according to an exemplary embodiment of the present invention includes installing a wall sound insulation layer (S100), a first layer lamination step (S200), a first layer taping step (S300), and a second layer. The layer stacking step S400, the second layer taping step S500, the nonwoven fabric layer stacking step S600, and the nonwoven fabric layer taping step S700 are included.

The wall sound insulation layer installation step (S100) is a step of attaching a polyethylene having a predetermined height on the wall surface meets the floor. Polyethylene installed on the wall blocks the noise transmitted through the wall.

The first layer lamination step (S200) is a step of selecting any one of a plurality of expanded polypropylene or foamed styrofoam in close contact with each other.

The first layer taping step (S300) is a step of sealing a gap generated between any one of foamed polypropylene or foamed styrofoam tightly installed in the first layer stacking step (S200) with a waterproof tape. At this time, the waterproof tape is used to not only bind a plurality of foamed polypropylene or a plurality of foamed styrofoam to each other, but also to block moisture that may flow into the gap, thereby preventing the effect of sound insulation deterioration due to moisture infiltration.

In the second layer stacking step (S400), when the foamed polypropylene is installed in the first layer stacking step (S200), a plurality of foamed styrofoams are installed in close contact, and the foamed styrofoam is installed in the first layer stacking step (S200). In this case, a plurality of expanded polypropylenes are installed in close contact.

The second layer taping step (S500) is a step of sealing a gap generated between any one of foamed polypropylene or foamed styrofoam in close contact with the second layer stacking step (S400) with a waterproof tape. At this time, the waterproof tape is used to not only bind a plurality of foamed polypropylene or a plurality of foamed styrofoam to each other, but also to block moisture that may flow into the gap, thereby preventing the effect of sound insulation deterioration due to moisture infiltration.

The nonwoven fabric layer stacking step (S600) is a step of laminating a plurality of nonwoven fabrics on the upper surface of the expanded polystyrofoam or foamed styrofoam through the second layer taping step (S500) and laminating a polyethylene film layer on the upper surface of the nonwoven fabric.

The nonwoven fabric taping step (S700) is a step of sealing a gap generated between adjacent nonwoven fabrics with a waterproof tape during the nonwoven fabric layer stacking step (S600). At this time, the waterproof tape is used to not only bind the non-woven fabric, but also to block the moisture that can be introduced into the gap, to prevent the degradation of the sound insulation effect due to moisture infiltration.

As described above, the interlayer sound insulation material and the construction method thereof according to the embodiment of the present invention can effectively block weight noise as well as light weight noise, and have an effect of providing an interlayer sound insulation material for floors having excellent thermal insulation function.

In addition, the interlayer sound insulation material and the construction method according to the embodiment of the present invention has the effect of preventing the infiltration of water to reduce the effect of the sound insulation degradation due to moisture in advance.

In addition, the interlayer sound insulating material and the construction method according to an embodiment of the present invention has the effect of blocking not only the noise of about 70% transmitted through the floor but also the remaining 30% of the noise transmitted through the wall.

Claims (4)

In the interlayer sound insulation material, An expanded polypropylene layer made of expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm; Foamed polystyrofoam having a density of 27 to 37kg / m ³ and a thickness of 11 to 15mm, laminated on the upper surface of the expanded polypropylene layer, having a height of 1 to 5mm on the bottom, and forming a plurality of protrusions spaced apart from each other A styrofoam layer; A nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm, the nonwoven fabric layer laminated on an upper surface of the expanded polystyrene foam layer; Interlayer sound insulating material comprising a polyethylene film layer laminated on the upper surface of the nonwoven fabric layer. In the interlayer sound insulation material, A foamed polystyrofoam layer having a density of 27 to 37kg / m ³ and a thickness of 11 to 15mm, having a height of 1 to 5mm and forming a plurality of protrusions spaced apart from each other; A expanded polypropylene layer made of expanded polypropylene having a density of 9 to 15 kg / m ³ and a thickness of 5 to 15 mm and laminated on the upper surface of the expanded polystyrene foam layer; A nonwoven fabric having a fiber thickness of 3 to 6 deniers and a thickness of 5 to 8 mm, the nonwoven fabric layer laminated on an upper surface of the expanded polypropylene layer; Interlayer sound insulating material comprising a polyethylene film layer laminated on the upper surface of the nonwoven fabric layer. The method according to claim 1 or 2, At least one side of the foamed polypropylene layer, the foamed polystyrofoam layer and the nonwoven fabric layer is a sound insulating material, characterized in that further provided with a wall sound insulating layer made of polyethylene. In the construction method of an interlayer sound insulation material, A wall sound insulation layer installation step of attaching polyethylene having a predetermined height to a wall surface meeting the floor; A first layer lamination step of selecting any one of a plurality of expanded polypropylenes or expanded styrofoams and installing them in close contact; A first layer taping step of sealing a gap generated between any one of foamed polypropylene and foamed styrofoam tightly installed in the first layer stacking step with a waterproof tape; When the foamed polypropylene is installed in the first layer lamination step, a plurality of foamed styrofoam is installed in close contact, and when the foamed styrofoam is installed in the first layer lamination step, a second layer lamination step Wow; A second layer taping step of sealing a gap generated between any one of foamed polypropylene and foamed styrofoam tightly installed in the second layer stacking step with a waterproof tape; A non-woven fabric layer laminating step of closely installing a plurality of nonwoven fabrics on the foamed polystyrofoam or foamed styrofoam upper surface through the second layer taping step and laminating a polyethylene film layer on the upper surface of the nonwoven fabric; And a nonwoven fabric layer taping step of sealing a gap generated between adjacent nonwoven fabrics with a waterproof tape during the nonwoven fabric layer stacking step.

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