KR100398447B1 - Member for absorbing an impacting sound on a floor of construction and method of manufacturing the same and executng method using the same - Google Patents

Abstract

The present invention discloses a floor impact sound prevention material of a building, a manufacturing method thereof, and a floor structure construction method of the building using the same. In the disclosed invention, a protective film is coated on the entire outer surface of the shock absorber. The protective film prevents the penetration of moisture or concrete into the shock absorber, and also prevents the shock buffer from scattering. A protective film having such a function is a viscoelastic polymer composite, which is composed of rubber powder, nylon cord, asphalt, polymer, hardener and flame retardant. The composition of each component is 32 to 38% for rubber powder, 5 to 9% for nylon cord, 32 to 38% for asphalt, 13 to 17% for polymer, 3 to 7% for hardener and 2 to 4 for flame retardant % Is preferred. On the other hand, the rubber powder is preferably extracted from waste tires, and it is preferable that SBS or CR is used as the polymer. In addition, the shock absorbing material is a fiber, glass wool, felt or steel wire used in the past as it is. In addition, during the coating of the protective film, due to the penetration of the protective film at the interface between the protective film and the impact buffer material, a composite layer in which the shock buffer and the protective film are naturally formed is formed. On the other hand, the upper layer of the protective film, that is, the layer on which the concrete is poured, preferably has an uneven portion in order to expand the contact area with the concrete. On the other hand, the lower layer of the protective film, that is, the layer in contact with the slab is preferably a flat surface so that no air layer is formed at the interface with the slab.

Description

Floor impact sound prevention material of building, its manufacturing method and construction method using same {MEMBER FOR ABSORBING AN IMPACTING SOUND ON A FLOOR OF CONSTRUCTION AND METHOD OF MANUFACTURING THE SAME AND EXECUTNG METHOD USING THE SAME}

The present invention relates to a floor impact sound prevention material of a building, a method of manufacturing the same, and a method of constructing a floor structure using the same, and more particularly, to be disposed in an interlayer structure of a building such as a building or an apartment to prevent impact sound from an upper floor to a lower floor. It relates to a preventive material and a method of manufacturing the same and a method of constructing the floor structure of the building using such a preventive material.

As the population density increases, the number of floors of buildings such as buildings and apartments is gradually increasing in order to allow more people to live in a limited area. In the construction of such buildings, structural facilities are required so as not to damage each other between residents living with interlayer structures on the upper and lower floors. The damage to occupants is mainly due to the noise generated by the impact generated from the upper floor, and thus, the structural facility is a floor shock sound prevention material that is disposed between the slab and the concrete, which is an interlayer structure, to cushion the impact.

Glass wool, felt or steel wire was used as the floor impact sound prevention material. However, since glass wool or felt is widely known that it is very harmful to the human body, the present invention is rarely used as it is and is legally restricted in use. In addition, glass wool or felt has a fundamental problem in durability because moisture is easily absorbed and hardening is promoted. On the other hand, the steel wire is easily corroded when exposed to moisture, and the phenomenon that the steel wire shorter than the other often occurs during construction, this also has a problem in durability.

One of the conventional floor structure construction methods to solve the problems of the existing floor impact sound protection material, in particular the fundamental problems caused by its own material is dated June 1, 1994 (Application No. 94-12469) Has been patented. The patent invention, in the construction of the bottom layer on the bottom foundation slab, lays an adhesive rubber material on the slab, spreads the PE foam sponge thereon to form a barrier layer by the rubber material and the PE foam sponge, and bubbles over the PE foam sponge. The concrete is laid to form the bottom layer. At this time, the waste tire pulverized particles, which are rubber materials, are mixed with the adhesive material of the binder, and the mixture is spread on the slab. After a certain time has elapsed, the urethane is solidified, and then the PE foam sponge having several bubble layers is continuously covered on the rubber material. That is, the above-mentioned conventional patent invention discloses a method of disposing a floor impact sound prevention material made of a waste tire rubber material and a PE foam sponge on the slab.

However, the above-mentioned conventional floor impact sound prevention material is a rubber material and a foam sponge, the main components, the rubber material composed of the waste tire has a disadvantage that it is very difficult to produce uniformly, since its shape is determined using an adhesive. That is, when the thickness of the rubber material is different from each other by a large difference, there is a disadvantage in construction that it is difficult to cast concrete on a uniform thickness thereon. In addition, when the adhesive for molding a rubber material is cured, the rubber material also almost loses its buffering capacity. In addition, when concrete is poured, concrete penetrates between rubber materials, thereby causing a serious disadvantage of virtually losing the buffering capacity of the rubber materials.

On the other hand, since the foam sponge is sensitive to heat, it is often contracted and expanded by heat, and thus suffers from a sharp drop in the ability to absorb impact sound. In addition, since the foam sponge does not come into close contact with the slab at the bottom thereof and forms a little space, a resonance phenomenon occurs in the air layer in this space, thereby causing an adverse effect of doubling the impact vibration. And, when the foam sponge construction, it is not possible to completely prevent the formation of a gap between each other, the concrete will penetrate through this gap, there is a problem that the impact buffer capacity is lost as described above.

Therefore, the present invention was devised to solve all the problems of the conventional floor impact sound prevention material, it is possible to manufacture a uniform thickness while preventing the penetration of moisture and concrete, the building that can improve the shock-absorbing ability An object of the present invention is to provide a floor shock sound prevention material and a method of manufacturing the same.

Another object of the present invention is to provide a method of constructing a floor structure of a building using such a preventive material.

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

2 to 4 is a perspective view sequentially showing a method of manufacturing a floor impact sound prevention material according to the present invention.

5 to 8 are cross-sectional views sequentially illustrating a method for constructing a floor structure of a building using a floor impact sound prevention material according to the present invention.

-Explanation of symbols for the main parts of the drawing-

10; Impact buffer 20; Shield

21; Uneven portion 30; Composite layer

40; Slab 60; concrete

In order to achieve the above object, the floor impact sound prevention material according to the present invention consists of the following configuration.

A protective film is coated on the entire outer surface of the shock absorber. The protective film prevents the penetration of moisture or concrete into the shock absorber, and also prevents the shock buffer from scattering. A protective film having such a function is a viscoelastic polymer composite, which is composed of rubber powder, nylon cord, asphalt, polymer, hardener and flame retardant. The composition of each component is 32 to 38% for rubber powder, 5 to 9% for nylon cord, 32 to 38% for asphalt, 13 to 17% for polymer, 3 to 7% for hardener and 2 to 4 for flame retardant Preferably about%, the most preferred compositional proportions are rubber powder 35%, nylon cord 7%, asphalt 35%, polymer 15%, hardener 5%, flame retardant 3%. On the other hand, the rubber powder is preferably extracted from waste tires, and it is preferable that SBS or CR is used as the polymer. In addition, the shock absorbing material is a fiber, glass wool, felt or steel wire used in the past as it is. In addition, during the coating of the protective film, due to the penetration of the protective film at the interface between the protective film and the impact buffer material, a composite layer in which the shock buffer and the protective film are naturally formed is formed.

On the other hand, the upper layer of the protective film, that is, the layer on which the concrete is poured, preferably has an uneven portion in order to expand the contact area with the concrete. On the other hand, the lower layer of the protective film, that is, the layer in contact with the slab is preferably a flat surface so that no air layer is formed at the interface with the slab.

The method of manufacturing the floor impact sound prevention material having the above-described structure consists of the following steps. The protective film is coated on the outer surface of the shock buffer by spraying a liquid protective film on the shock buffer or impregnating the shock buffer with the liquid. On the other hand, before the protective film coating, two impact buffers having the same size may be eccentrically superimposed, and the protective film may be coated on the eccentrically superimposed impact buffer by the above-described method. Thereafter, the protective shock-coated shock absorber is naturally dried or dried using a drying furnace. In addition, before drying, an uneven part may be formed in a protective film upper layer through a compression press process. In addition, if the two shock absorbers are eccentrically overlapped, the convex and convex portions are formed through the compression press process described above, and the two shock absorbers are firmly joined.

The method of constructing the floor structure using the floor impact sound prevention material produced by the above method is made of the following steps.

First, the adhesive and waterproofing material is coated on the building slabs. Then, the above-described method, i.e., a plurality of floor shock absorbers, which are eccentrically superimposed in the same structure, is disposed on the slab. Here, each of the plurality of floor shock sound preventive materials superimposed in the same structure has the same size as the portion projecting outwardly and the portion immersed inwardly. Thus, each floor impact sound protection material is disposed on the slab in such a manner that the protrusions are superimposed on the immersion portion, so that the bottom impact sound protection materials are brought into close contact with each other. Then, a protective film is applied along the interface between the floor impact sound protection materials. Subsequently, concrete is poured on the floor impact sound prevention material. At this time, the interface between each floor impact sound protection material and the entire outer surface of the floor impact sound protection material is surrounded by a protective film, so that concrete does not penetrate into the interface between each floor impact sound protection material or inside the floor impact sound protection material, and moisture is the same.

According to the configuration of the present invention described above, since the shock absorbing material is surrounded by the protective film, the phenomenon that concrete or moisture penetrates into the shock absorbing material is fundamentally prevented. Therefore, the problem that the shock absorbing ability of the shock absorbing material is lost due to the penetration of concrete or moisture is eliminated.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a floor impact sound protection material according to the present invention, Figures 2 to 4 is a perspective view sequentially showing a method of manufacturing a floor impact sound protection material according to the present invention, Figures 5 to 8 is a floor according to the present invention It is sectional drawing which showed the method of constructing the floor structure of a building using an impact sound prevention material sequentially.

First, as shown in Figure 1, the floor impact sound prevention material according to the present invention consists of a shock absorbing material 10 for substantially cushioning the shock, and a protective film 20 coated on the outer surface of the shock buffer 10. As the shock absorber 10, glass wool, felt, fiber, or steel wire, which have been conventionally used, may be used.

On the other hand, the protective film 20 proposed in the present invention prevents the scattering of the components of the shock absorber 10, in particular glass wool or felt harmful to the human body, and prevents the penetration of moisture or concrete to be described later into the shock absorber 10. It serves to prevent. The protective film 20 having such a role is a viscoelastic polymer, in particular, made of rubber powder, nylon cord, asphalt, polymer, hardener and flame retardant. The composition ratio of each component is 32 to 38% for rubber powder, 5 to 9% for nylon cord, 32 to 38% for asphalt, 13 to 17% for polymer, 3 to 7% for hardener and 2 to 4 for flame retardant Preferably about%, the most preferred compositional proportions are rubber powder 35%, nylon cord 7%, asphalt 35%, polymer 15%, hardener 5%, flame retardant 3%. On the other hand, the rubber powder is preferably extracted from waste tires in terms of resource recycling, SBS or CR is preferably used as a polymer.

On the other hand, the protective film 20 made of the above components, as described above, is coated on the outer surface of the shock buffer 10, at this time a portion of the protective film 20 is penetrated into the buffer 10, the impact buffer ( The composite layer 30 is naturally formed at the interface between the protective layer 20 and 10). The composite layer 30 serves as a medium for the protective film 20 to be firmly fixed to the shock buffer 10 instead of being in close contact with the outer surface of the shock buffer 10. Therefore, there is an advantage that the rigidity and durability of the finished floor impact sound prevention material are greatly strengthened by the composite layer 30.

In addition, as shown in detail in FIG. 1, the lower layer of the passivation layer 20, that is, the layer in close contact with the slab is flat, while the upper layer, that is, the layer on which the concrete is poured, has the uneven portion 21. The uneven portion 21 serves to strengthen the adhesive force by expanding the contact area with the concrete, and also serves to disperse the impact energy applied from the top.

A method of manufacturing the floor impact sound prevention material having the structure as described above will be described in detail with reference to FIGS. 2 to 4.

First, as shown in FIG. 2, the shock absorber 10 is cut into a plate shape. Then, two impact buffers 10 having the same size are superimposed. At this time, the upper shock absorbing material 11 is superimposed so that the upper shock absorbing material 11 is eccentric with respect to the lower shock absorbing material 12 in one corner direction without overlapping the two shock absorbers 10 so as to be superimposed exactly on the same axis. Thus, when the overlapped bottom shock absorber is viewed as a whole, two adjacent surfaces of the upper shock absorbing material 11 protrude from the lower shock absorbing material 12, while the other two surfaces of the upper shock absorbing material 11 are lowered into the lower shock absorbing material 12. It has an immersive structure. In particular, the size of the protruding portion and the immersed portion of the upper buffer member 11 are naturally the same. The reason why the bottom shock sound prevention material is formed by overlapping the two shock absorbing materials 11 and 12 as described above is for convenience at the time of construction, which will be described later.

Then, as shown in Figure 3, by spraying the liquid protective film 20 to the shock buffer 10 having an overlapping structure or by impregnating the shock buffer 10 in the liquid protective film 20, The protective film 20 is coated on the entire outer surface of the 10. At this time, since the composite layer 30 is naturally formed at the interface between the protective film 20 and the impact buffer 10, the protective film 20 and the impact buffer 10 are firmly connected through the composite layer 30.

Subsequently, the upper and lower buffers 11 and 12 coated with the protective film 20 were press-molded by using a mold to impart moderate strength and strength of approximately 300 to 1,200 kg / m 2 to the overlapping upper and lower buffers 11 and 12. do. At this time, the concave-convex structure is formed on the upper wall of the mold, and the concave-convex portion 21 is formed together on the upper layer of the protective film 20.

Then, the buffer layer 10 coated with the protective film 20 is naturally dried for about 15 hours or dried in a drying furnace at a temperature of 95 ℃, the bottom impact sound prevention material shown in Figure 4 is completed.

A method of constructing a floor structure of a building using the floor impact sound prevention material manufactured by the above method will be described in detail with reference to FIGS. 5 to 8.

First, as shown in FIG. 5, the adhesive and waterproof material 50 is applied onto the building slab 40. Then, as shown in Figure 6, a plurality of floor impact sound prevention material produced by the above-described method is disposed on the slab (40). At this time, the protrusion of the upper shock absorbing material 11 of one of the preventive materials is inserted into the immersion part of the upper preventive material 11 of the other preventive material adjacent thereto. On the other hand, since the lower layer of the protective film 20 is flat as described above, the generation of a space in which an air layer causing a resonance phenomenon between the slab and the lower layer may be prevented.

However, a gap is formed between the adjacent floor impact sound prevention materials, and as shown in FIG. 7, a viscoelastic polymer composite material 22 made of the same material as the protective film is applied to completely block the gap. Then, as shown in Figure 8, by pushing each of the bottom impact sound preventive material firmly bonded through the viscoelastic polymer composite material 22 interposed therebetween, the gap is completely prevented.

Finally, as shown in Figure 9, the concrete 60 is poured on the floor impact sound prevention material. At this time, since there is no gap between each floor impact sound protection material and the floor impact sound protection material is surrounded by the protective film 20, the concrete 60 penetrates into the slab 40 between or through the floor impact sound protection material. This is fundamentally prevented. If the concrete 60 is connected to the slab 40, a so-called sound bridge phenomenon is generated in which the impact sound generated in the upper layer is transmitted through the slab 40 connected to the concrete 60, resulting in a large noise in the lower layer. The propagation phenomenon is fundamentally prevented by the construction method according to the present invention. Concrete 60 is also prevented from penetrating into the floor impact sound protection material to lose the function of the floor impact sound prevention material itself. In addition, since the concave-convex portion 21 is formed in the upper layer of the protective film 20, the adhesive force is further strengthened by expanding the contact area with the concrete 60, and the impact energy is also dispersed.

According to the present invention as described above, since the shock buffer is first surrounded by a protective film, even if the shock buffer is a material harmful to the human body, the phenomenon that its components are scattered is fundamentally prevented, which is advantageous in that there is no harm to health. Since the penetration of moisture into the shock absorber is also prevented, the function of the shock absorber due to moisture is also impaired.

Further, since the bottom impact sound prevention material is produced by pressure molding, the floor impact sound prevention material has excellent strength and durability, and thus the effect of absorbing shock and vibration energy is greatly improved.

In addition, since the floor impact sound prevention material is produced by eccentric overlap of two shock absorbing materials, there is also an operational advantage that can be easily aligned by simply fitting each other together during construction. When concrete is poured, there is no gap between each floor impact sound preventive material and each other. Therefore, the concrete is connected to the slab to prevent the sound effect, and the concrete penetrates into the floor impact sound preventive material and prevents the material itself. The phenomenon of completely losing the function of is also prevented.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.

Claims (12)

In the floor impact sound prevention material disposed between the slab and the concrete interlayer structure of the building, Impact buffer; A protective film coated on the entire outer surface of the impact buffer material and formed of a viscoelastic polymer composite made of rubber powder, nylon cord, asphalt, a polymer, a curing agent, and a flame retardant; And And a composite layer formed naturally at an interface between the protective film and the impact buffer material to firmly connect the protective film and the impact buffer material. delete delete The method of claim 1, The rubber powder is a floor impact sound prevention material of a building, characterized in that extracted from the waste tires. The method of claim 1, The viscoelastic polymer composite consists of 32 to 38% rubber powder, 5 to 9% nylon cord, 32 to 38% asphalt, 13 to 17% polymer, 3 to 7% hardener, 2 to 4% flame retardant Floor impact sound prevention material of a building, characterized in that. According to claim 1, wherein the upper layer of the protective film, floor impact sound prevention material of a building, characterized in that it has an uneven portion for expanding the contact area with the concrete. According to claim 1, wherein the lower layer of the protective film, floor impact sound prevention material of the building, characterized in that the flat structure to prevent the formation of a space in which there may be an air layer causing a resonance phenomenon between the slab and the lower layer. Floor shock sound prevention material disposed between the slab, which is the inter-layer structure of the building, and concrete, An upper and lower impact shock absorbing material having two protrusions eccentric in one direction while being vertically overlapped, and having protrusions and immersion portions of the same size; A protective film coated on the entire outer surface of the upper and lower impact buffers and having an uneven portion formed on an upper layer thereof; And And a composite layer formed naturally at an interface between the protective film and the upper and lower impact buffers to firmly connect the protective film and the shock buffer to each other. As a method of manufacturing a floor impact sound protection material disposed between the slab and the concrete interlayer structure of the building, Coating a liquid protective film on the entire outer surface of the impact buffer; Pressing the shock absorbing material up and down to impart a predetermined strength to the shock absorbing material and at the same time forming an uneven portion in the upper layer of the protective film; And Method of manufacturing a floor impact sound protection material of a building, characterized in that it comprises the step of drying the protective film coated shock buffer. The method of claim 9, wherein before the protective film coating step, Eccentrically overlap the two shock absorbers in either corner direction so that the two adjacent faces of the upper shock absorber protrude from the lower shock absorber while immersing the other two faces into the lower shock absorber, followed by subsequent steps. Method for producing a floor impact sound prevention material of a building, characterized in that. delete A method of constructing a floor structure on a slab of a building using the floor impact sound protection material according to claim 8, Applying an adhesive and waterproofing material to the slab of the building; Arranging a plurality of bottom impact sound absorbing materials according to claim 8 via an adhesive and waterproofing material on the slab, such that the protrusions of the upper blocking material are fitted into the immersion part of another adjacent upper blocking material; Applying a material of the same material as the passivation layer to a gap formed at an interface between the bottom impact sound prevention materials; Bonding each of the bottom impact sound absorbing materials to each other, thereby bonding the applied material between the interfaces; And The method of building a floor structure of a building comprising the step of pouring concrete on the protective film coated with a protective film having the uneven portion.