KR100980140B1 - Shock-absorbing structure using supporting block part for building bottom - Google Patents

Abstract

The present invention relates to a buffer layer connection structure for a building floor using a support member.

The buffer floor connection structure for the building floor using the support member of the present invention is formed in the bottom of the finishing mortar layer or lightweight foam concrete layer and is configured to block the floor impact sound while supporting the upper load, and the support member insertion groove is formed along the circumference. A plurality of buffer layers formed on the outer circumferential surfaces of the support member insertion grooves so as to be adjacent to each other; A support member in which a buffer layer is inserted into a support member insertion groove in a portion adjacent to each other; Or a waterproof tape attached to an upper surface of an adjacent buffer layer to prevent water from moving from the top to the bottom;

It is formed under the finishing mortar layer or lightweight foam concrete layer, and is configured to block the bottom impact sound while supporting the upper load, and forming a supporting member insertion groove at the bottom along the perimeter with a plurality of buffer protrusions spaced from each other A plurality of buffer layers whose outer peripheral surfaces are opposed to each other; A support member in which a buffer layer is inserted into a support member insertion groove in a portion adjacent to each other; It is attached to the upper surface of the adjacent buffer layer is a waterproof tape configured to prevent the water from moving from the top to the bottom.

According to the present invention, when the upper compressive force is applied to the connecting portion of the adjacent buffer layer during the taping operation, the deformation of the buffer layer boundary is suppressed, thereby improving the workability of the taping operation, and preventing the waterproof tape attached to the buffer layer from being separated and opening. By improving the stability of taping, it is possible to improve the waterproofing performance. By installing the reinforcing plate on the waterproof tape on the upper part of the connection part of the adjacent buffer layer, the compressive load acting on the connection part is evenly distributed to the surroundings to waterproof the joint by the upper compression force. By further increasing the stability of the tape, the waterproof performance is further improved.

Building, floor, vibration, buffer layer, waterproof, support member

Description

SHOCK-ABSORBING STRUCTURE USING SUPPORTING BLOCK PART FOR BUILDING BOTTOM}

The present invention relates to a buffer layer connection structure for a building floor, which prevents the waterproof tape from taping between the buffer layers from falling, as well as improving the durability of the waterproof tape and improving the structural stability of the buffer layer connection portion. It relates to a buffer layer connection structure for the building floor used.

The buffer layer 40 of the building floor is formed on the concrete floor layer 10 of the building floor as shown in FIG. 1 or is formed on the light-bubble concrete layer 20 above the concrete floor layer 10.

The upper mortar layer 30 or the lightweight foam concrete layer 20 is located at the top.

The buffer layer 40 serves to block the floor impact sound by lowering the dynamic modulus.

With respect to the buffer layer 40, the inventors of the present invention have disclosed a 'dustproof rubber foam manufacturing method and a dustproof rubber foam prepared therefrom' (Korea Patent Publication No. 10-0504148) .

Such a technique improves the buffering effect by lowering the vibration transfer rate by mixing a plurality of materials in a state in which it is difficult to thicken the floor thickness sufficiently, such as an apartment house.

The buffer layer 40 is arranged on the concrete floor layer 10 by adjoining a plurality of them in the horizontal direction.

As a technique related to the construction method of the buffer layer 40, using the joint member, such as tape 50, the buffer layer 40 is connected to each other 'connected floor impact sound shock absorbing material of the multi-family apartment building' (Korea) Utility Model Registration No. 20-0420631) has been published.

Looking at the design as described above, it can be seen that the tape 50 is connected to each other as shown in FIG.

By the way, the buffer layer 40 is formed of a material having elasticity in nature, and when the local compressive force of one side of the buffer layer 40 is applied, the local settlement deformation occurs at the portion where the compressive force is applied.

That is, compressive deformation occurs in the buffer layer 40 due to the compressive load generated while the worker moves for the work in the state of laying several buffer layers 40 adjacent to each other, which results in deterioration of taping workability. There was a problem.

In addition, if the local compressive force is repeatedly applied due to the person coming and going in the workplace even after the taping operation, there was a problem that the tape 50 falls from the buffer layer 40.

As such, when the tapes 50 connecting the buffer layers 40 to each other fall, the buffer layer 40 becomes an environment in which moisture can penetrate.

In particular, in view of the fact that the buffer layer 40 is formed of a large amount of foaming material, the buffer property is deteriorated due to the penetration of moisture into the buffer layer 40, or the buffer layer 40, the concrete floor layer 10, or the lightweight foam concrete layer. This will cause problems such as mold formation on (20).

The buffer layer connection structure for the building floor using the support member of the present invention is intended to solve the problems caused in the prior art as described above. To improve the workability of the work.

In addition, the waterproof tape attached to the buffer layer is to prevent the separation and opening to improve the stability of the taping to improve the waterproof performance.

In addition, by installing a reinforcing plate on the upper waterproof tape of the connection portion adjacent to the buffer layer to evenly distribute the compressive load acting on the connection to the surroundings to further improve the waterproof performance by further increasing the stability of the joint waterproof tape by the upper compression force.

In order to solve the above problems, the buffer floor connection structure for the building floor using the support member of the present invention is formed under the finishing mortar layer or the lightweight foam concrete layer, and is configured to block the floor impact sound while supporting the upper load. A plurality of buffer layers having support member inserting grooves formed along the circumference thereof, the outer peripheral surfaces of which are opposed to each other such that the support member inserting grooves are adjacent to each other; A support member in which a buffer layer is inserted into a support member insertion groove in a portion adjacent to each other; It is attached to the upper surface of the adjacent buffer layer is configured to prevent the water from moving from the top to the bottom;

It is formed under the finishing mortar layer or lightweight foam concrete layer, and is configured to block the bottom impact sound while supporting the upper load, and forming a supporting member insertion groove at the bottom along the perimeter with a plurality of buffer protrusions spaced from each other A plurality of buffer layers whose outer peripheral surfaces are opposed to each other; A support member in which a buffer layer is inserted into a support member insertion groove in a portion adjacent to each other; It is attached to the upper surface of the adjacent buffer layer is a waterproof tape configured to prevent the water from moving from the top to the bottom.

At this time, the support member insertion groove is characterized in that formed in any one of the upper or lower portion of the buffer layer.

In addition, the reinforcing plate is provided on the upper portion of the waterproof tape is characterized in that configured to distribute the load generated in the adjacent portion of the buffer layer.

Meanwhile, the support member may be foamed using one or two selected from natural rubber or synthetic rubber, or one to six selected from polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, and ethylene vinyl acetate. As a raw material, a foamed product is used, or a mixture of 1 to 8 foamed powders selected from natural rubber, synthetic rubber, polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, and ethylene vinyl acetate is used. It is characterized by being formed of a polyester nonwoven layer.

According to the present invention, when the upper compression force is applied to the connection portion of the adjacent buffer layer during the taping operation, the deformation of the buffer layer is suppressed, thereby improving the workability of the taping operation.

In addition, the waterproof tape attached to the buffer layer is prevented from being separated and openings can be improved to improve the stability of the tape to improve the waterproof performance.

In addition, by installing a reinforcing plate on the upper waterproof tape of the connection portion of the adjacent buffer layer to evenly distribute the compressive load acting on the connection to the periphery further improves the stability of the joint waterproof tape by the upper compression force to further improve the waterproof performance.

Hereinafter, a buffer floor connection structure for a building floor using the supporting member of the present invention will be described in detail with reference to the accompanying drawings.

The buffer layer connection structure for the building floor using the support member of the present invention is formed on the bottom of the finishing mortar layer 30 or lightweight foam concrete layer 20, and is configured to block the floor impact sound while supporting the upper load, The support member insertion groove 110 is formed along the plurality of buffer layers 100 whose outer peripheral surfaces are opposed to each other such that the support member insertion grooves 110 are adjacent to each other; A support member 200 in which the buffer layer 100 is inserted into the support member insertion grooves 110 of the portions adjacent to each other; Or a waterproof tape 300 attached to an upper surface of an adjacent buffer layer 100 to prevent water from moving from the top to the bottom.

It is formed under the finishing mortar layer 30 or light-weight foam concrete layer 20, and is configured to block the bottom impact sound while supporting the upper load, and supports a lower portion along the circumference with a plurality of buffer protrusions spaced apart from each other on the bottom surface. A plurality of buffer layers 100 whose outer circumferential surfaces are opposed to each other while forming the member insertion grooves 110 and adjacent to each other; A support member 200 in which the buffer layer 100 is inserted into the support member insertion grooves 110 of the portions adjacent to each other; It is attached to the upper surface of the adjacent buffer layer 100 is a waterproof tape 300 configured to prevent the water from moving from the top to the bottom.

In this case, the support member insertion grooves 110 are formed at the periphery of each buffer layer 100 so that the support member insertion grooves 110 of the respective buffer layers 100 are in contact with each other so as to correspond to each other. When the support member 200 is inserted, when the compressive load is applied to the connection portions of the buffer layers 100 adjacent to each other, the water resistant tape 300 does not fall by reducing the deformation point corresponding to the connection portions.

That is, it is possible to improve the waterproof performance by installing the support member 200.

Hereinafter, each component of the present invention will be described in detail.

The buffer layer 100, which is a component of the present invention, is formed below the lightweight foam concrete layer 20, as shown in FIG. 1A, and is located on the concrete floor layer 10, or as shown in FIG. The lower mortar layer 30 may be positioned above the lightweight foamed concrete layer 20.

At this time, the preferred position of the buffer layer 100 is located in the lower portion of the lightweight foam concrete layer 20, as shown in Figure 1 (A) is configured to support the lightweight foam concrete layer 20 or the finishing mortar layer 30 of the upper portion. It is preferable to be.

In this case, the buffer layer 100 is preferably foamed using natural rubber or synthetic rubber as a raw material, or foamed by using a mixed material of natural rubber and synthetic rubber as a raw material in order to block the floor impact sound.

In addition, a foamed product can be used as a raw material of polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, ethylene vinyl acetate, or a mixture of two to six kinds thereof.

In addition, a mixture of 1 to 8 foamed powders selected from natural rubber, synthetic rubber, polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, and ethylene vinyl acetate may be used.

In addition, a polyester nonwoven layer may be used as the buffer layer 100.

The structure of the buffer layer 100 may be formed in one foam form, a plurality of buffer materials are laminated or a support plate is installed on the top, or a heat insulating material is installed on the bottom.

For example, the support plate may be installed on the upper portion, and the buffer layer 100 having one foam-type buffer mounted thereon may be applied.

In this case, the buffer member may be formed in a flat plate shape, and may form a buffer protrusion of a shape spaced apart from each other on the top or bottom.

When the buffer protrusion is installed, the vibration blocking effect is improved because the coefficient of elasticity of the entire buffer layer 100 is lowered.

In addition, it is also possible to install a heat insulating material at the bottom, which is to prevent the heat insulating performance is lowered when installing the buffer projection spaced apart from each other by installing the heat insulating material at the bottom to satisfy the heat insulating performance by blocking the heat transmitted to the concrete floor layer (10). Let's go.

The biggest feature of such a buffer layer 100 is that the support member insertion groove 110 is formed along the circumference as shown in the figure.

Examples of the formation of the support member insertion groove 110 include a method of forming a lower portion of the circumference of the buffer layer 100 or forming an upper portion of the buffer layer 100 as illustrated in the drawing.

In the method of forming the support member insertion groove 110 in the lower portion of the buffer layer 100, as shown in the drawing, the protrusion member 120 protruding laterally is formed around the upper portion of the buffer layer 100 by inserting the support member in the lower portion thereof. The groove 110 may be formed.

In this manner, the support member inserting groove 110 may be formed on the upper circumference of the buffer layer 100, as shown in the figure, by forming a protrusion 120 protruding laterally around the lower circumference of the buffer layer 100. Support member insertion groove 110 may be formed in the.

In addition, in forming the buffer layer 100, a plurality of buffer protrusions are formed on the bottom surface of the buffer layer 100 spaced apart from each other, and the buffer protrusion of the outer peripheral surface is located inward of the outer peripheral surface of the buffer layer 100 so that the buffer layer 100 Since the buffer protrusion is located on the inner side from the outer circumferential surface, the support member insertion groove 110 may be formed therebetween.

The support member insertion groove 110 may be resistant to the compressive load acting on the circumferential side of the buffer layer 100 by inserting the support member 200 to be described later.

Support member 200 is a component of the present invention is configured to be inserted into the support member insertion groove 110 formed on the outer peripheral surface side of the buffer layer (100).

More specifically, as shown in the drawings, each support member insertion groove 110 is formed in the support member insertion groove 110 generated by the two buffer layers 100 in a state where the adjacent buffer layers 100 are in contact with each other. 200) is inserted.

As such, when the support member 200 abuts the two buffer layers 100 in the state where the support member is inserted into the support member insertion groove 110 and attaches the waterproof tape 300 to the connection portion thereof, the construction of the buffer layer 100 is performed by the operator. 100) The shrinkage deformation of the boundary portion of the buffer layer 100 becomes very small due to the load generated when the foot is stepped on the upper portion of the boundary portion.

That is, since the shrinkage deformation of the boundary portion of the buffer layer 100 becomes very small, it becomes easy to attach the waterproof tape 300 stably.

In addition, after the waterproof tape 300 is attached and dried, even if a worker applies a load to the connection portion of the buffer layer 100 when the worker moves from the upper portion of the buffer layer 100, the shrinkage deformation is less likely to occur at the connection portion. It will not fall or fall apart.

This improves the waterproof performance of the entire buffer layer 100.

That is, the conventional buffer layer is difficult to adhere the waterproof tape 300 due to the downward shrinkage of the boundary portion by the compressive load of the buffer layer boundary, even after being attached, the waterproof tape 300 of the boundary portion by the compressive load of the boundary portion However, even after falling off could not maintain the waterproof performance, the present invention has solved this problem.

The support member 200 is preferably foamed using natural rubber or synthetic rubber as a raw material, or foamed using a mixed material of natural rubber and synthetic rubber as a raw material.

In addition, a foamed product can be used as a raw material of polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, ethylene vinyl acetate, or a mixture of two to six kinds thereof.

In addition, a mixture of 1 to 8 foamed powders selected from natural rubber, synthetic rubber, polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, and ethylene vinyl acetate may be used.

In addition, a polyester nonwoven fabric layer may be used as the support member 200.

The support member 200 may be applied to the upper surface, the lower surface, the upper and lower surfaces, or the left and right sides in order to facilitate fixing and adhesion.

Waterproof tape 300 is a component of the present invention is the support member 200 is attached to the upper surface of the connection portion of the plurality of buffer layer 100 assembled while being inserted into the support member insertion groove 110, the water from the buffer layer ( 100) It is to prevent the movement inside and below.

The waterproof tape 300 may use a waterproof tape 300 made of a known water-insoluble material that is insoluble in water.

In addition, it is preferable to use a strong adhesive force to structurally fix the waterproof and the adjacent buffer layer (100).

Referring to the construction method of the buffer floor connection structure for the building floor using the support member of the present invention configured as described above are as follows.

Referring to the installation of the buffer layer 100 to form a structure as shown in Figure 4, first, a plurality of buffer layers 100 are disposed adjacent to each other on top of the concrete floor layer 10 or lightweight foam concrete layer 20.

At this time, the support member insertion grooves 110 formed in the respective buffer layers 100 are arranged to coincide with each other.

Then, the support member 200 is inserted into the support member insertion groove 110 at the portion where the respective buffer layers 100 are butted together.

At this time. Adhesive may be applied to the upper, lower, left, and right surfaces of the support member 200, and when the adhesive is applied, the adjacent buffer layer 100 may be first fixed by using an adhesive, and thus the fixing between the buffer layers 100 may be firmly performed.

After the installation of the supporting member 200 is completed, a series of buffer layer 100 construction is completed by attaching the waterproof tape 300 to the upper surface of the connection between the adjacent buffer layer (100).

Meanwhile, in forming the buffer layer 100 as shown in FIG. 7, even when the edges of the buffer layer 100 are formed flat without processing, the buffer layer 100 structure of the present invention can be configured.

Specifically, when the pipe 400 is installed between the buffer layer 100 as shown, a gap occurs in the upper portion thereof.

This gap is actually to act as a support member insertion groove 110, inserting the support member 200 in the upper gap of the pipe 400 and then attach the waterproof tape 300 thereon the buffer layer of the present invention ( 100) It has a structure.

In the above configuration, as shown in FIG. 8, the reinforcement plate 500 may be additionally installed on the upper portion of the waterproof tape 300.

In addition, although not shown, the reinforcement plate 500 may be installed on the upper side even in the case of FIG. 7.

The reinforcement plate 500 serves to assist the support member 200 to protect the buffer layer 100 to prevent deformation of the buffer layer 100 and to allow the waterproof tape 300 to fall, as well as directly. It serves to protect the buffer layer 100 from external impacts.

The reinforcement plate 500 serves as a base of the finishing mortar layer 30 or the light-foamed concrete layer, in particular, the light-foamed concrete layer 20, which is weak in mechanical strength, as well as the buffer layer 100 due to the compression load of the connection part. In order to prevent depression, it can be formed from various materials, and it is preferable to form it with a high strength member.

To this end, the reinforcing plate 500 may be formed using one or three kinds of polypropylene, polyvinyl chloride, and polyethylene as raw materials.

In addition, it may be formed of any one selected from plywood, a pressurized molding plate to which a binder is added, a pressurized molding plate to which a binder is added, a pressurized molding plate to which a binder is added, and a powdered wood powder and an inorganic powder. have.

At this time, the thickness of the reinforcing plate 500 is preferably formed to a thickness between 0.5 mm to 5 mm.

If it is thinner than 0.5 mm, not only the supporting function is deteriorated, but also local deformation occurs, so that the upper load cannot be supported well.

In addition, when the thickness is thicker than 5 mm, a problem occurs that the thickness of the foamed concrete layer 30 of the upper portion becomes thin, and economic efficiency is lowered.

This reinforcement plate 500 should be kept as thin as possible while keeping the thickness as thin as possible, and economical considerations.

Therefore, although it may be formed in the form of a general flat plate, it is more preferable to form in a multi-wall form having a column using a member having a high strength.

The flat plate portion is formed at the upper and lower portions, and the wall portion is formed in the form of a multi-walled portion therebetween, so that even if an expensive member having a high strength is used, less material is added to enable a high economical member.

At this time, the shape of the wall portion may be formed in a straight line, a triangle, a quadrangle, a polygon such as a hexagon, a cylinder, or the like in addition to the lattice shape to further improve the structural strength.

According to the configuration as described above, even if a compressive load occurs at a connection portion to which each buffer layer 100 is connected, less compression deformation occurs at a boundary portion of the buffer layer 100.

Therefore, it is easy to attach the waterproof tape 300 to the connection portion, and even after the waterproof tape 300 is attached, the waterproof tape 300 does not fall well, thereby improving the waterproof performance.

As described above, the building buffer layer having a hollow part of the present invention described above is not only used for the floor structure, but may be applied to various parts such as vibration blocking of a mechanical structure.

1 is a schematic cross-sectional view showing the floor structure of a typical building.

(A) Cross-sectional schematic diagram where the buffer layer is located below the lightweight foam concrete layer.

(B) Cross-sectional schematic diagram where the buffer layer is located below the finishing mortar layer.

Figure 2 is a schematic cross-sectional view showing a conventional buffer layer connection structure.

Figure 3 is a schematic cross-sectional view showing another conventional buffer layer connection structure.

Figure 4 is a construction sequence diagram showing a buffer layer connection structure for the building floor using the support member of the present invention.

(A): Schematic which showed the state which arrange | positioned each buffer layer.

(B): Schematic drawing which showed the state which formed each support member insertion groove against each other buffer layer.

(C): Schematic diagram showing a state in which a supporting member is inserted into the supporting member insertion groove and a waterproof tape is attached to the upper portion.

Figure 5 is a construction sequence diagram showing another example of the building buffer layer connection structure using the support member of the present invention.

(A): Schematic which showed the state which arrange | positioned each buffer layer.

(B): Schematic drawing which showed the state which formed each support member insertion groove against each other buffer layer.

(C): Schematic diagram showing a state in which a supporting member is inserted into the supporting member insertion groove and a waterproof tape is attached to the upper portion.

Figure 6 is a construction sequence diagram showing another example of the buffer floor connection structure for the building floor using the support member of the present invention.

(A): Schematic which showed the state which arrange | positioned each buffer layer.

(B): Schematic drawing which showed the state which formed each support member insertion groove against each other buffer layer.

(C): Schematic diagram showing a state in which a supporting member is inserted into the supporting member insertion groove and a waterproof tape is attached to the upper portion.

Figure 7 is a schematic diagram showing a state in which the support member insertion groove is formed by using the arrangement of the pipe in the example of the building buffer layer connection structure using the support member of the present invention.

Figure 8 is a cross-sectional view showing an example in which the reinforcing plate is installed in the buffer layer connection structure for the building floor using the support member of the present invention.

(A): sectional drawing which shows the state in which the reinforcement board was installed in the buffer layer connection structure of FIG.

(B): sectional drawing which shows the state in which the reinforcement board was installed in the buffer layer connection structure of FIG.

(C): sectional drawing which shows the state in which the reinforcement board was installed in the buffer layer connection structure of FIG.

<Detailed Description of Major Symbols in Drawing>

10: concrete floor layer 20: lightweight foam concrete layer

30: finishing mortar layer 40: buffer layer

50 tape 100 buffer layer

110: support member insertion groove 120: protrusion

200: support member 300: waterproof tape

400: pipe 500: reinforcement plate

Claims (8)

In the buffer floor connection structure for the building floor, It is formed under the light-weight foam concrete layer 20 and is configured to block the floor impact sound while supporting the upper load, and forms a protrusion 120 protruding to the side of the upper circumference or protruding to the side of the lower circumference. A support member insertion groove 110 is formed along a lower portion of the lower portion, and a plurality of buffer layers 100 having outer circumferential surfaces facing each other such that the support member insertion grooves 110 are adjacent to each other; A support member 200 in which the buffer layer 100 is inserted into a support member insertion groove 110 at a portion adjacent to each other; A waterproof tape 300 attached to an upper surface of the adjacent buffer layer 100 and configured to prevent water from moving from the top to the bottom; It is installed on the upper portion of the waterproof tape 300 to distribute the load generated in the adjacent portion of the buffer layer 100, the upper load to the strength enough to prevent the destruction of the lightweight foamed concrete layer 20 from the applied upper load Plate, plywood, wood powder press-molded plate with binder added, inorganic powder press-molded plate with binder, wood powder with binder, and the like formed from 1 to 3 types of polypropylene, polyvinyl chloride, and polyethylene to support the Consists of any one selected from the press-formed plate formed by mixing the inorganic powder and press-molded, reinforcement plate 500 having a thickness of 0.5 ~ 10 mm; Buffer layer connection structure for building floor using support member. In the buffer floor connection structure for the building floor, It is formed under the light-weight foam concrete layer 20 and is configured to block the bottom impact sound while supporting the upper load. A plurality of buffer layers 100 whose outer peripheral surfaces are opposed to each other while being adjacent to each other; A support member 200 in which the buffer layer 100 is inserted into a support member insertion groove 110 at a portion adjacent to each other; A waterproof tape 300 attached to an upper surface of the adjacent buffer layer 100 and configured to prevent water from moving from the top to the bottom; It is installed on the upper portion of the waterproof tape 300 to distribute the load generated in the adjacent portion of the buffer layer 100, the upper load to the strength enough to prevent the destruction of the lightweight foamed concrete layer 20 from the applied upper load Plate, plywood, wood powder press-molded plate with binder added, inorganic powder press-molded plate with binder, wood powder with binder, and the like formed from 1 to 3 types of polypropylene, polyvinyl chloride, and polyethylene to support the Consists of any one selected from the press-formed plate formed by mixing the inorganic powder and press-molded, reinforcement plate 500 having a thickness of 0.5 ~ 10 mm; Buffer layer connection structure for building floor using support member. delete delete The method according to claim 1 or 2, The support member 200, Characterized in that the foamed on the basis of one or two selected from natural rubber or synthetic rubber, Buffer layer connection structure for building floor using support member. The method according to claim 1 or 2, The support member 200, Characterized in that foamed from 1 to 6 selected from polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, ethylene vinyl acetate as a raw material, Buffer layer connection structure for building floor using support member. The method according to claim 1 or 2, The support member 200, Characterized in that 1 to 8 kinds of foamed grinding materials selected from natural rubber, synthetic rubber, polyurethane, polyolefin, polyethylene, polypropylene, polyvinyl chloride, and ethylene vinyl acetate are mixed and molded. Buffer layer connection structure for building floor using support member. The method according to claim 1 or 2, The support member 200, Characterized in that formed of a polyester nonwoven layer, Buffer layer connection structure for building floor using support member.

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