JPH07189358A - Sound absorption board, and sound absorption and sound insulation structure - Google Patents

Abstract

PURPOSE:To provide a sound absorption board which is excellent in sound absorption, sound insulation, vibration insulation, heat insulation and execution abilities, and to compose a sound absorption-sound insulation structure through the utilization of the above board by laminating the sound absorption board composed of waste regenerated paper and a straw and a particle board. CONSTITUTION:A waste paper is regenerated, and a straw is mixed into the regenerated waste paper and agitated during the solidification precess of the regenerated paper, and they are solidified to obtain a sound absorption board 1. Next vegetable fiber such as hemp is used to obtain a particle board 2. The sound absorption board 1 and the particle board 2 are then laminated on a concrete slab. Thus, a structure which is excellent in sound absorption, sound insulation, vibration insulation, heat insulation and execution abilities can be obtained by the synergetic effect of sound absorbing action, vibration insulating action and heat insulating action of both the sound absorption board 1 and the particle board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound absorbing board that reuses waste paper such as old newspapers and magazines and waste paper (hereinafter simply referred to as waste paper) and a sound absorbing and sound insulating structure using the sound absorbing board. Is.

An object of the present invention is a sound-absorbing board made of recycled waste paper and a sound-absorbing and sound-insulating structure using the sound-absorbing board, which is excellent in sound-absorbing property, sound-insulating property, anti-vibration property, heat-retaining property and workability. A sound absorbing board and a sound absorbing and insulating structure using the sound absorbing board are provided.

[0003]

The sound absorbing board of the present invention comprises:
Characterized by recycled paper and straw. A sound absorbing and sound insulating structure of the present invention using the above sound absorbing board is characterized in that a sound absorbing board made of recycled recycled paper and straw and a particle board are laminated. Furthermore, the sound absorbing and sound insulating structure of the present invention is characterized in that a sound absorbing board made of recycled recycled paper and straw and a gypsum board are laminated.
Furthermore, the sound absorbing / insulating structure of the present invention is characterized by laminating a sound absorbing board made of recycled recycled paper and straw, a sound insulating material, and a particle board.

[0004]

The sound absorbing board of the present invention is excellent in sound absorbing property due to the sound absorbing action of the pulp of recycled waste paper due to the above constitution. Moreover, since recycled paper can be reused, it can contribute to resource recycling. Further, the sound absorbing and sound insulating structure of the present invention using the above sound absorbing boat, by the above configuration, the sound absorbing action and the vibration insulating action and the heat retaining action of pulp and straw of the recycled paper, and other particle boards and gypsum boards. It has excellent sound absorption, sound insulation, anti-vibration, and heat retention due to the synergistic effect of sound absorption, sound insulation, vibration insulation, and heat retention of sound insulation materials. Moreover, since the overall shape is mainly a board shape, workability is good.

[0005]

Embodiments of the sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board will be described below with reference to the accompanying drawings as five examples. FIG. 1 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and insulating structure using the sound absorbing board in a first embodiment as a construction example. In the figure, 1 is a sound absorbing board of the present invention. This sound absorbing board 1
Is a recycled paper, which is recycled through the steps of stirring, decolorizing, degreasing, etc. of the used paper, and during the solidification process of the used recycled paper, straw such as wheat straw is recycled to the used recycled paper. The weight ratio is about 15 to 20%, and the mixture is stirred and solidified. The above-mentioned straw and the like have a function of connecting the above-mentioned recycled waste paper, and also a function of breathability and cushioning property (buffering function). The length of the straw or the like mixed in the recycled recycled paper is, for example, about 2 to 30 mm in order to connect the recycled recycled paper. The solidification of the recycled recycled paper is solidified by the adhesiveness of the recycled recycled paper itself, but an adhesive or the like may be mixed during the solidifying step to accelerate the solidification. The sound absorbing board 1 may have any thickness, for example, about 20 mm.

In the figure, 2 is a particle board. This particle board 2 is nonflammable for 30 minutes (JI
S), which uses a plant fiber such as hemp having a very small warp and has an arbitrary thickness, for example, about 2
Set to about 0 mm.

In the figure, 3 is a structure of a building.
In this example, it is a floor concrete slab. Thus, the sound absorbing board 1 of the present invention and the particle board 2 described above are laminated on the concrete slab 3 described above.

Since the sound-absorbing and sound-insulating structure using the sound-absorbing board of the present invention in this embodiment has the above-mentioned structure, the sound-absorbing board 1 of the present invention has a sound-absorbing function such as pulp and straw of recycled paper recycled from the sound-absorbing board 1 of the present invention. Due to the synergistic effect of the vibration action and heat retention action and the sound absorption action, sound insulation action, vibration isolation action and heat retention action of the particle board 2, the sound absorption property, the sound insulation property, the vibration isolation property and the heat retention property are excellent. In particular, it is excellent in sound absorption and sound insulation. For example, according to the data of the impact sound measurement experiment, it is 83 dB (A).
It is possible to absorb and insulate up to 65 to 67 dB (A) with respect to the impact sound. Further, it is excellent in heat retention and air permeability, that is, it allows water vapor or the like to pass therethrough, but does not allow heat or the like to pass therethrough, so that the coldness of concrete or the like can be cut off, dew condensation can be prevented, and insects can be prevented. Therefore, it is suitable for cold regions such as Hokkaido and tropical regions such as Okinawa. Moreover, the sound absorbing board 1 and the particle board 2 are mainly board-shaped as a whole, so that workability is good.

FIG. 2 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board in a second embodiment as a construction example. In the figure, 4 is a big root. The root 4 is interposed between the sound absorbing board 1 of the present invention of the first embodiment and the concrete slab 3 described above. This root size 4 is, for example, about 30 mm square and about 400 mm
Place at intervals. In this embodiment, since the space 5 is formed between the root 4 and the root 4, the sound insulation and the heat retaining property are further improved as compared with the first embodiment.
Further, pipes, cables and the like can be arranged in the space 5 described above.

FIG. 3 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board, which is a third embodiment of a construction state. In the figure, 6 is a carpet. The carpet 6 is laid on the particle board 2 of the first embodiment described above. Since the carpet 6 is laid on the particle board 2 in this embodiment, it is more excellent in sound absorption, sound insulation and heat retention than the above-mentioned first embodiment.

FIG. 4 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and insulating structure using the sound absorbing board in a construction state as a fourth embodiment. In the figure, 7 is a gypsum board. This gypsum board 7 is laminated on the sound absorbing board 1 of the present invention. The sound absorbing board 1 of the present invention is provided with a crank-shaped gap 8 and the plaster board 7 is also provided with a gap 9. The gaps 8 and 9 are about 10 mm when the length of the sound absorbing board 1 and the gypsum board 7 of the present invention is about 5 m.

The construction of this embodiment is particularly simple. That is, since it can be directly attached to a mortar, an iron pipe, a steel frame, a square pipe, a C channel, a concrete slab, etc. with a screw or the like, the construction is easy. Further, in this embodiment, since the gaps 8 and 9 are provided in the sound absorbing board 1 and the gypsum board 7 of the present invention, expansion and contraction due to heat of the sound absorbing board 1 and the gypsum board 7 of the present invention can be sufficiently absorbed. . Note that this example is not suitable for the floor.

FIG. 5 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board, which is a fifth embodiment of the construction state. In the figure, 10 is a sound insulation material. The sound insulation material 10 is made of asphalt, lead, and the like, and has sound insulation properties, vibration isolation properties, and fire extinguishing properties. This sound insulating material 10 is laminated between the sound absorbing board 1 and the particle board 2 of the present invention of the above-described first embodiment. The thing of this Example is especially excellent in sound insulation and anti-vibration. For example, a sound of 125 to 500 Hz 75 dB (A) is 75 to 8
It can insulate up to 5%. In addition, the device of this embodiment is most suitable for a device or machine, etc., that generates noise, for example, an outer box of a motor.

In the above-mentioned embodiment, the sound absorbing board 1 of the present invention, the particle board 2, the gypsum board 7 and the sound insulating material 10 may be integrated or laminated separately. Is also good. Further, in the above-mentioned embodiment, the sound absorbing board 1 of the present invention is laminated in a single layer, but the sound absorbing board 1 of the present invention may be laminated in a double layer with a space provided therebetween. Further, although the structure of the building in the above-mentioned embodiment is the concrete slab 3, the sound absorbing board 1 and the like of the present invention are structures of other buildings, for example, mortar, iron pipe, steel frame, square pipe, C It can also be applied to channels and field boards. Furthermore, the sound absorbing board 1 and the like of the present invention can be used not only on the floors described above but also on, for example, ceilings and walls.

[0015]

As is apparent from the above, the sound absorbing board of the present invention and the sound absorbing and sound insulating structure using the sound absorbing board are excellent in sound absorbing property, sound insulating property, vibration insulating property, heat retaining property, workability and the like. .

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and insulating structure using the sound absorbing board in a first embodiment as a construction example.

FIG. 2 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board in a second embodiment as a construction example.

FIG. 3 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board in a third embodiment as a construction example.

FIG. 4 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and insulating structure using the sound absorbing board in a construction state as a fourth example.

FIG. 5 is a partial cross-sectional view of a sound absorbing board of the present invention and a sound absorbing and sound insulating structure using the sound absorbing board in a construction state as a fifth example.

[Explanation of symbols]

1 ... Sound absorbing board using recycled paper, 2 ... Particle board, 3 ... Concrete slab, 4 ... Large root, 5 ... Space, 6 ..., Carpet, 7 ... Gypsum board, 8 and 9 ... Gap, 1
0 ... Sound insulation material.

Claims (4)

[Claims] 1. A sound absorbing board comprising recycled waste paper and straw. 2. A sound absorbing and sound insulating structure, comprising a sound absorbing board made of recycled recycled paper and straw, and a particle board being laminated. 3. A sound absorbing and sound insulating structure comprising a sound absorbing board made of recycled recycled paper and straw and a gypsum board laminated together. 4. A sound absorbing and sound insulating structure comprising a sound absorbing board made of recycled recycled paper and straw, a sound insulating material, and a particle board, which are laminated.