KR200425219Y1 - Sound absorbing material for building sound insulation - Google Patents

Abstract

The present invention relates to a building sound absorbing material for sound insulation between floors, and more particularly, to an air layer formed between porous flaw members stacked so that impact sound or other noises can be effectively prevented from being transmitted to the lower floor or next door. will be.

The present invention described above includes a first foaming layer (10) having a myriad of first air layers (12) formed in a foam (11) having a network structure in which polyurethane is foamed and burst; On the bottom surface of the expanded polystyrene plate 21 adhered to the upper surface of the first foam layer 10, the second foam is formed with the projections (21a) arranged horizontally and the second air layer 22 between the projections (21a) Layer 20; A waterproof layer 30 bonded to an upper surface of the second foaming layer 20 and mixed with rubber on asphalt; The upper surface of the waterproof layer 30 is made of a thin non-woven fabric 40 is bonded to the configuration, laminated from below the first foam layer 10, the second foam layer 20, the waterproof layer 30 and the nonwoven fabric 40 It can be achieved by the building sound absorbing material for the sound insulation between the floor, characterized in that it is installed on the floor (2) of the building.

Description

Sound absorbing materials for building sound insulation {a sound absorbing materials for soundproof facilities}

1 is a front view illustrating an embodiment of the present invention,

2 is an exploded perspective view magnifying a part of the present invention,

3 is an exploded perspective view illustrating an embodiment of the present invention;

Figure 4 is a cross-sectional view of the use state illustrating a state in which the sound absorbing material according to the present invention is installed on the floor of the building.

Explanation of symbols on the main parts of the drawings

1: sound absorbing material 2: bottom

3: wall surface 10: first foam layer

11: foam 12: first air layer

20: second foam layer 21: foamed polystyrene sheet

21a: protrusion 22: second air layer

30: waterproof layer 40: nonwoven fabric

50: foam concrete layer 60: concrete layer

61: heating piping 70: insulation

The present invention relates to a building sound absorbing material for sound insulation between floors, and more particularly, to an air layer formed between porous flaw members stacked so that impact sound or other noises can be effectively prevented from being transmitted to the lower floor or next door. will be.

In general, multi-storey buildings such as apartments or buildings such as apartments are provided with sound insulation structures to prevent the impact sound or other noises generated in the room from being transmitted to the next door or the lower floor.

Conventionally, light weight foam concrete is poured on the floor or wall of a building, or porous foam (foam polystyrene, foam sponge, etc.) is mostly used to block the noise.

However, as described above, when absorbing and treating noise using sound absorbing properties of porous materials, noise transmitted through air can be effectively blocked, but noise generated by impact and noise transmitted through solid can be effectively blocked. There was no.

In some cases, an artificial air layer is formed by floating the floor structure with floor space installed on the floor, but the flooring is not only difficult to level, but also requires a lot of time for construction work. Discontinuances such as an increase in overall construction costs have occurred.

The present invention was devised in view of the above problems, and its object is to provide a sound absorbing material for building sound insulation for interlayer sound insulation, which can effectively prevent the impact sound or other noises from being transmitted to the lower floor or next door by forming an air layer between the porous flaw members. It's in the box.

Features of the present invention for achieving the above object, the first foam layer (10) formed with a myriad of first air layer 12 in the foam 11 of the mesh structure bursting the polyurethane foam; On the bottom surface of the expanded polystyrene plate 21 adhered to the upper surface of the first foam layer 10, the second foam is formed with the projections (21a) arranged horizontally and the second air layer 22 between the projections (21a) Layer 20; A waterproof layer 30 bonded to an upper surface of the second foaming layer 20 and mixed with rubber on asphalt; The upper surface of the waterproof layer 30 is made of a thin non-woven fabric 40 is bonded to the configuration, laminated from below the first foam layer 10, the second foam layer 20, the waterproof layer 30 and the nonwoven fabric 40 It can be achieved by the building sound absorbing material for the sound insulation between the floor, characterized in that it is installed on the floor (2) of the building.

Hereinafter, described in detail by the accompanying drawings a preferred embodiment for achieving the above object is as follows.

1 to 3, in the sound absorbing material 1 according to the present invention, the first foam layer 10, the second foam layer 20, the waterproof layer 30 and the nonwoven fabric 40 are sequentially stacked from the bottom. It is made up of.

The first foam layer 10 is composed of a foam (11) consisting of a network structure of the polyurethane foamed to burst the film, the foam 11 has a configuration in which a myriad first air layer 12 is formed It is.

The second foam layer 20 is adhered to the upper surface of the first foam layer 10 by an adhesive. The second foam layer 20 is composed of a foamed polystyrene sheet 21 in which polystyrene is expanded by the action of a blowing agent.

In the present invention, a foamed product inflated with steam was used after injecting a foaming agent having a hydrocarbon gas as a main raw material, such as pentane or butane, to the polystyrene resin. The foamed polystyrene sheet 21 is air and 98% of the volume is composed of a resin composed of a light, porous product is good because the sound absorption, heat insulation and shock absorption is good.

Cylindrical protrusions 21a are arranged on the bottom of the expanded polystyrene plate 21, and second air layers 22 are formed between the protrusions 21a.

The waterproof layer 30 is adhered to the upper surface of the second foam layer 20, and the waterproof layer 30 is a mixture of asphalt and rubber in a weight ratio of 1: 1.

A thin nonwoven fabric 40 is adhered to the upper surface of the waterproof layer 30.

The sound absorbing material 1 of the present invention in which the first foam layer 10, the second foam layer 20, the waterproof layer 30, and the nonwoven fabric 40 are sequentially stacked from the bottom is installed on the floor 2 of the building. do.

On the other hand, in some cases, as shown in Figure 4, the non-woven fabric 40 is laminated with a lightweight foam concrete layer 50, which is cured by forming a myriad of bubbles to form inside when pouring concrete On top of the aerated concrete layer 50, a concrete layer 60, which is cured by pouring concrete, is laminated. A heat insulating material 70 made of porous foam is attached to the circumference of the wall 3 to form a first foam. The periphery of the layer 10, the second foam layer 20, the waterproof layer 30, the nonwoven fabric 40, the light concrete layer 60, and the concrete layer 60 may be configured to be in close contact with each other. In the figure, reference numeral 61 is a heating pipe installed inside the concrete layer 60.

The present invention having the above-described configuration includes a foamed concrete layer 50 having a myriad of bubbles, a second foamed layer 20 composed of a foamed polystyrene plate 21, and a first foamed layer 10 composed of a polyurethane foam 11. ) And various noises generated in the room are absorbed and blocked by the porosity of the heat insulating material 70, which is a porous foam installed along the circumference of the wall 3, and the noise or solids generated by the impact are transmitted. The sound is a second air layer 22 formed between the innumerable first air layers 12 formed in the first foam layer 10 having a network structure and the bottom projections 21a of the expanded polystyrene sheet 21. Because it is blocked by artificial air layers made of) all the noise generated in the room is blocked to be effectively prevented such as passing downstairs or next door.

In the above described and illustrated with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, it is usually in the field to which the present invention belongs without departing from the spirit of the present invention claimed in the claims. Anyone of ordinary skill in the art can make various modifications, as well as such modifications are within the scope of the claims.

The present invention as described above is the circumference of the first foam layer 10 and the wall surface 3 of the foamed foam layer 50, the second foam layer 20 composed of a foamed polystyrene sheet 21 and a polyurethane foam The various noises generated in the room are primarily absorbed and processed by the porous (porosity) of the porous foams are installed along the, and the noise or solid transfer sounds generated by the impact is formed in the first foam layer (10) Since it is blocked by artificial air layers such as the first air layers 12 and the second air layers 22 formed in the second foam layer 20, all the noises generated in the room are absorbed and blocked to the lower floor or next door. As it can effectively prevent the closure such as being delivered is that there is an advantage such as to maximize the external competitiveness of the sound absorbing material for building sound insulation between floors.

Claims (2)

A first foam layer 10 having numerous first air layers 12 formed on a foam 11 having a network structure by foaming polyurethane; On the bottom surface of the expanded polystyrene plate 21 adhered to the upper surface of the first foam layer 10, the second foam is formed with the projections (21a) arranged horizontally and the second air layer 22 between the projections (21a) Layer 20; A waterproof layer 30 bonded to an upper surface of the second foaming layer 20 and mixed with rubber on asphalt; The upper surface of the waterproof layer 30 is made of a thin non-woven fabric 40 is bonded to, Building sound absorbing material for inter-layer sound insulation, characterized in that the first foam layer 10, the second foam layer 20, the waterproof layer 30 and the non-woven fabric 40 laminated from below is installed on the floor (2) of the building . The method of claim 1, In the upper portion of the non-woven fabric 40, when the concrete is poured innumerable bubbles are formed inside the light-weight foam concrete layer 50 cured (養 生養) is laminated, and the concrete is poured on top of the foamed concrete layer 50 The cured concrete layer 60 is laminated, and a heat insulating material 70 made of porous foam is attached to the periphery of the wall surface 3 so that the first foam layer 10, the second foam layer 20, and the waterproof layer (30), non-woven fabric 40, light-weight concrete layer 60 and the sound absorbing material for building sound insulation for interlayer sound insulation, characterized in that it is configured to be in close contact with the circumference.

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