JPH01315556A - Floor joist pad and sound insulation construction utilizing same - Google Patents

Abstract

PURPOSE:To facilitate leveling and improve the vibration resistance, sound resistance and sound absorption effect by installing floor joist pads made of rubber chips and an adhesive between the raw surface floor of a concrete building and floor joist materials. CONSTITUTION:Floor joist pads 3 made of a mixture of rubber chips and an adhesive are installed on the raw surface floor 2 of a concrete building, and floor joist materials 1 are mounted on them for leveling. Waste rubber is utilized for the rubber chips, an epoxy resin adhesive, a phenol resin adhesive, a polyurethane adhesive or the like is used as appropriate for the adhesive, and they are mixed on the site to form the mixture.

Description

[Detailed Description of the Invention] The present invention provides a joist pad that is laid on the bare floor of a concrete building to fix the joist material and at the same time exhibits effects such as leveling, reducing floor impact noise, and vibration isolation. Regarding the sound insulation method used.

Floor impact sounds include the heavy impact sound that occurs when children jump or run, the sound of high heels, and the light impact sound that occurs when objects are dropped.

The sound insulation performance of weight impact noise varies depending on the structure, but on floors with reinforced concrete structures, the sound of footsteps and running around can be a bit bothersome, and if you are not careful when living in an apartment complex, problems will arise.

The impact noise of lightweight floors varies depending on the finish, but if the floor is made of soft finishing materials such as carpet, the above-mentioned footsteps and running noises may be a little bothersome, but recently wood floors have become more popular.

Therefore, with directly laid wooden floors or with conventional construction methods, the sound of footsteps and running around can be a concern, and living in an apartment complex where children are present can cause complaints from downstairs.

Reducing floor impact noise depends on various factors such as the floor finishing material, the main structure of the floor, the floor area, and the finishing material on the floor directly below.
Sound insulation systems for solid-borne sound become important.

Conventionally, the bare floors of concrete buildings are uneven and do not have a horizontal level, so mortar balls were placed in the necessary places to level them, and joists were bridged over the mortar balls. Since we were able to get the level of the joist material, we were able to form a floor by attaching floorboards, etc. to the joist material.

However, since mortar balls only increase the thickness of the reinforced concrete floor slab, they cannot be used to measure floor impact sound insulation.

Therefore, in particular, the floor impact noise of wooden floors can be reduced by joists.Of course, the present invention can be used to mix and form joist pads (3) to be laid on the bare floor (2) of concrete buildings on the spot.
Leveling the joist material (1) fixed on the joist pad (3), as well as vibration and sound insulation.

The purpose of the present invention is to provide a joist band (3) that can exhibit effects such as sound absorption, and a sound insulation construction method using the same.

The present invention uses joists (1) and bare floors (2) of concrete buildings.
), and the joist material (1) is laid between the plain floor material (2
) is a joist pad (3) made of a mixture of a rubber chip (4) and an adhesive (5), which has the effect of leveling the joist material (1) and has vibration-proofing, sound-proofing, and sound-absorbing effects.

In order to be able to manufacture the rubber chips (4) at low cost, waste rubber is used, and an epoxy resin adhesive that can be mixed and formed on site as the adhesive (5) for connecting the rubber chips (4) is used. , a phenolic resin adhesive, or a polyurethane adhesive may be used.

The present invention also provides a method in which a joist pad (3) made of a mixture of rubber chips (4) and an adhesive (5) is laid on the bare floor (2) of a concrete building, and the joist pad (3) is placed on the upper surface of the joist pad and throat (3). This is a sound insulation construction method that uses the joist pad (3) on which the joist material (1) is placed, and at the same time the joist material (1) is fixed to the bare concrete floor (2), it is easy to level it.
It is characterized by having vibration-proofing, sound-proofing, and sound-absorbing effects.

Hereinafter, the present invention will be explained based on examples.

Figure 1 is a partially cutaway diagram showing the state in which a joist pad (3) is laid on the bare floor (2) of a concrete building, and the joist material (1) and wooden floor (6) are fixed on top of it. FIG.

The joist pad (3) in this example contains about 2 to 30% of waste rubber.
It is formed into chips or pellets with a diameter of 31 m. Of course, the material is not limited to waste rubber, and may be formed into chips or pellets from new rubber. Further, the size of the rubber chip (4) can be selected depending on the load and the degree of sound insulation. Examples of the adhesive (5) include solution-based epoxy resin adhesives, phenol resin adhesives, polyurethane adhesives, etc., and the solution-based epoxy resin adhesive was used.

Next, a sound insulation construction method using the above-mentioned joist pad (3) will be explained. First, a joist pad (3) made of a mixture of the rubber chip (4) and a solution-based epoxy resin adhesive (5) as a binder is placed on the bare floor (2) of a concrete building.
) are laid at the desired positions in specified amounts, and the joist pads (3
) Place the joist material (1) on the top surface. If there is a high place on the joist (1), press from above the joist (1) to push down the joist pad (3) to level the joist (1). The curing time of the epoxy resin adhesive (5) of the joist pad (3) may be determined as necessary. After the joist pad (3) is in the specified shape, insert the joist material (
Attach the wooden floor (6) to the top of 1) to complete the wooden flooring work.

As described above, the joist pad of the present invention is a joist band made of a mixture of rubber chips and adhesive that is laid between the joist material and the bare floor of a concrete building, and can be mixed and formed depending on the site situation. It is possible to mix only the necessary amount, eliminating unnecessary work, and in addition, there is no need to waste materials.Furthermore, the rubber chips do not necessarily require the use of new rubber material, and waste rubber can be reused, which helps reduce costs.

The sound insulation method according to the present invention involves laying an appropriate amount of joist pads made of a mixture of rubber chips and adhesive at predetermined positions on the bare floor of a concrete building, and then placing joist materials on these joist pads. Since the flooring material is fixed to the joist material after the pad has hardened or crosslinked, the joist pad can be formed on-site according to the site conditions, and the appropriate amount can be placed in the desired position extremely easily. In addition, it adapts well to the unevenness of the bare floor and is fixed, making it possible to omit complicated processes such as plastering and horizontal construction using self-leveling flowable materials, which were required in conventional construction methods, and the joist The material is such that the level of the joist pad can be maintained economically and reliably at the same time as the joist pad is formed;
In addition, since the joist pad is made of rubber chips, it can improve the sound insulation effect by absorbing floor impact sounds and vibrations that are transmitted to the bare floor of the concrete building below through the wooden floor and joist material. It also acts as a buffer for the load on the wooden floor, and protects people's feet.
It can reduce the impact on the lower back and provide a comfortable living space.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view showing the usage state of an embodiment of the present invention, and FIG. 2 is a partially cutaway enlarged perspective view of FIG. 1. Knee joist material, 2- bare floor, 3- joist pad, 4-
Rubber chips, 5--adhesive, 6-wooden floor-. Patent applicant: Cchagomu Co., Ltd.

Claims (1)

[Scope of Claims] 1) By laying between a joist (1) and a bare floor (2) of a concrete building, and at the same time when the joist (1) is fixed to the bare floor (2), A joist pad (3) made of a mixture of a rubber chip (4) and an adhesive (5), which has the effect of leveling the joist material (1) and has vibration-proofing, sound-proofing, and sound-absorbing effects. 2) The joist pad according to claim 1, wherein the rubber chips (4) are waste rubber and are pellets of 0.5 to 5 m/m. 3) The joist pad according to claim 1 or 2, wherein the adhesive (5) is a solution-based epoxy resin adhesive, phenolic resin adhesive or polyurethane adhesive. 4) Rubber chips (
4) and adhesive (5).
) is laid, and the joist material (1) is laid on the top surface of the joist pad (3).
), the joists (1) become bare floors (2).
) A sound insulation construction method using joist pads, which is characterized by being fixed to floor joist pads, making leveling easy, and having vibration-proofing, sound-proofing, and sound-absorbing effects.