KR20060127548A - A flooring system and its construction process for impact-noise reduction - Google Patents

Abstract

A floor construction method of a building using a floating structure is provided to cut off impact sound or various noises by forming a space on a floor of a building and filling up the space with sound absorbing materials, and to improve sound absorption and thermal insulation effects by attaching thermal insulating and sound absorbing materials or floor impact sound absorbing materials on a floating structure. A floor construction method of a building using a floating structure comprises the steps of placing a concrete slab, cleaning and making the base smooth, forming a space between a floating structure(20) and the concrete slab at a height of 30Œ20 millimeters, placing sound absorbing materials composed of volcanic rock, active carbon or sand at a height of 20Œ10 millimeters, and installing thermal insulating and sound absorbing materials or floor impact sound absorbing materials on the upper part of the floating structure. Hereon the floating structure contains a floor support plate(21) provided with many holes(25), supporting projections(22) to form a space of 30 millimeters to fill up with sound absorbing materials, and a concave part(23) and a convex part(24) to arrange in the prefabricated type.

Description

 A flooring system and its construction process for impact-noise reduction

1 is an exemplary view of a conventional impact noise reducing material.

2 is a view illustrating an embodiment of the present invention, the bottom support structure injection molding

Figure 3: An example of a deposit deposited on top of the bottom support structure of the present application.

4: Example of the arrangement of the pile deposited on the floor support structure of the present application.

Figure 5 is an exemplary embodiment of the field construction forming the floor shock sound blocking structure of the present application.

** Description of the main symbols in the drawings **

10: impact sound reducing material 11: upper foam layer

12 middle buffer layer 13 lower foam layer

20: bottom support structure 21: bottom plate

22: protrusion support 23: concave coupling portion

24: convex coupling portion 25: bottom hole

30: waste resin foam 31: flat structure foam

32: protrusion structure foam 33: bone structure foam

40: sound absorbing material 50: reinforced concrete slab layer

60: cement mortar layer 70: floor finishing material layer

The present invention relates to a technology for blocking noise and impact sound of a building such as an office building, a multi-unit house, and more specifically, to perform a concrete floor slab construction method to block the propagation of impact sound generated in an interlayer structure of a building. The present invention relates to a method for constructing a building structure to form a floor support structure to be spaced apart at an upper distance, to install a heat insulating buffer material and / or a floor impact sound reduction material on the upper part of the structure, and to include a sound absorbing material on the lower part of the structure.

Recently, as the social structure is urbanized due to rapid industrial development and population concentration in large cities is progressing, apartment houses such as apartments or multi-family houses are widely used to solve housing problems in large cities.

In general, high-density buildings such as multi-family houses are concrete buildings, and since walls, floors, ceilings, and toilets are all connected between neighboring households, noise generated by various factors is transmitted to neighboring households as they are.

That is, various noises generated from neighbors in a multi-unit housing structure, such as noise generated from TVs (home theaters) and audio, or impact sounds generated by children running, are transmitted to other neighboring generations to sleep, recreation, and work of others. Interfering is causing mental damage.

Such noise pollution is emerging as the most seriously uncomfortable pollution problem in daily life as a sensory pollution, and acts as a cause of loss of mutual trust between apartments.

Here, the impact sound is a sound generated by falling, walking, friction, etc. of the object is transmitted to the floor or the wall and then vibrated and radiated, and the sound is a solid transmission sound transmitted through the concrete slab or the wall as the shock vibration.

These impact noises are noises generated by walking, opening and closing of doors, moving friction, dropping of equipment, operation of facilities, etc., and foreign countries have been devising measures to reduce them for a long time.

Conventional impact noise reducing materials are mostly composed of cross-linked foamed polyethylene in the upper layer and the lower layer, and the middle layer is made of a buffer layer in which waste tire chips are bonded with a binder. The construction of the above-described three-layered impact sound reducing material on the concrete slab, and the conventional lightweight foam concrete and finishing material on the impact sound reducing material, was the most construction method for the conventional noise reduction.

However, even if the conventional impact sound reducing material can reduce the impact sound to some extent by the cushioning effect, when the boundary wall between generations is 130 to 150 mm thick in a multi-family house, general noise may be blocked to some extent, but the material is called concrete. Due to its characteristics, the impact sound generated by direct impact is easily transmitted to neighboring generations, and this impact sound transmission characteristic is commonly experienced in apartment houses, and is known as a source of noise that is irrelevant to the frequency of occurrence. It was to have a problem that is difficult to solve with a shock absorber or structure.

In the meantime, researches to reduce the noise between floors have been actively conducted. As a conventional technique for solving such noise and impact sound problems, Korean Patent Laid-Open Publication No. 2001-0027935 discloses a floating floor using a shock absorber having a plate structure. A method of blocking impact sound is disclosed through construction, and Patent 1999-43687 provides a perforated glass fiber polyurethane foam sound absorbing panel for construction and uses it as a sound absorbing material used for interior and exterior finishing materials on ceilings and walls of buildings. There has been an attempt to absorb noise between floors, a pollution of residential environment, and in Patent 1998-10751, there is an attempt to provide a product having soundproofing effect and economic efficiency in order to provide a lightweight soundproof concrete panel.Patent 2001 In 723, a sound absorbing plate using foamed ceramic is disclosed and installed inside a housing. There has been an attempt to provide a sound absorbing plate formed of an artificial light weight aggregate, and Patent 2001-17939 discloses a lightweight porous aggregate for sound absorbing and soundproofing modules, and provides a lightweight porous aggregate for sound absorbing and soundproofing modules having excellent sound absorption and sound insulation performance. Although there have been attempts to provide a structure that partially satisfies the noise between floors, most of them are not economically adaptable due to economic problems, and some of the items that can be adapted to the field cannot provide the expected noise reduction. Had.

The purpose of the present invention is to solve the above problems by developing a modified construction method of the floating floor system (blocking floor noise), which is excellent in heat insulation and block various noises, including light impact sound, heavy impact sound, impact energy is the floor structure In order to reduce the direct transmission to the floor and to provide a floating floor construction method that absorbs the impact sound, the present application to achieve a floating floor deformation method, so that the floor concrete slab and the floor impact sound reducing material to form a structure spaced apart a certain distance. Laying a floor support structure or a floor support structure which is supported by an elastic material support, and the top of the floor support structure is provided with a thermal insulation + buffer and / or floor impact sound absorbing material, the separation between the floor concrete slab and the floor support structure The floor deformation method that is formed by the structure that installs a sound absorbing material The intended to provide a floating floor construction method characterized.

In general, a floating floor system is a method of reducing floor impact sound, and a method of absorbing impact sound while reducing direct transmission of impact energy to the floor structure. The US, Europe (Germany, France), In Japan, this technology has been applied for a long time.

In Korea, KF established the method of measuring floor impact sound (KS F 2810) in 1978 and added the method of measuring weight impact sound in 1981.In 1986, the Ministry of Construction announced the noise measurement standard for apartment houses. Since August 28, 2014, KSF 4039, a lightweight foam concrete for site casting, has been implemented by the Ministry of Commerce, Industry and Energy.

In addition, as the Decree No. 270 of the Ministry of Construction and Transportation Decree 270, "Revision Ordinance on the Facility Standard, etc.," came into effect from June 1, 2001, the wall between existing buildings was strengthened by strengthening insulation more than 20% in order to make efficient use of energy of buildings. Insulation and sound-impact sound reduction measures in boundary structures such as floors and floors have emerged as concerns.

Floating floor method was developed to block vibration and air propagation.

In the direct impact of the floor surface, the waveform and the resonance frequency of the impact force at light weight and heavy impact are different depending on the type and material of the cushioning material.

The Japanese Standard (JIS) specifies that the high-frequency floor impact sound generated by thick, high-stiffness slabs and the low-frequency floor impact sound produced by thin, low-stiffness slabs are distinguished and reduced.

When the impact source is the standard impact source specified in KS F 2819, the factors related to impact force are the mass affecting the impact energy, the momentum due to the velocity, the mass related to the wave form of the impact force, and the spring constant from the point of impact (dynamic elasticity). Coefficient), resistance coefficient, and the like.

In case of floor structure, impact force wave associated with impact sound, spring constant, slab resistance due to bending vibration, slab vibration coefficient, elastic modulus related to acoustic radiation, density and thickness. Boundary conditions are considered as a factor influencing the impact of the floor impact, and the geometrical condition of the floor related to acoustic radiation in the substructure and the temporal accumulation of sound in the space become a large variable of sound absorption.

The present application is to provide a floating floor deformation construction method is to modify the method of placing aerated concrete on the conventional concrete floor slab layer or installing a thermal insulation + buffer and / or floor impact sound reduction material on the concrete floor layer and placing the bubble concrete thereon It is intended to apply.

The floating floor deformation method of the present application is laid so that the floor support structure having a plurality of protrusions in the middle is spaced about 30 ± 20 mm from the slab so that the floor concrete slab and the insulation + buffer material and / or the floor impact sound reduction material are not directly laminated. Insulation + buffer and / or floor impact sound reducing material is installed in the upper portion of the support structure, characterized in that to form a floor deformation method in which a sound absorbing material is installed in the spaced layer between the bottom support structure and the slab.

The floor support structure of the present application has a function to separate a certain distance from the floor surface of a concrete slab, such as a material used for insulation, a cushioning material, or a floor impact sound reducing material, among resins such as polyethylene, polypropylene, and ABS resin. It may be selected and used, and among them, it is preferable to form the bottom support part with a material formed by adding a certain amount of barite (barium sulfate) as an inorganic filler to the polypropylene resin.

This is because polypropylene resin has excellent processing characteristics, chemical resistance, weather resistance, high sliding property, and lead powder, lead compound, iron powder, iron oxide slug, barite (barium sulfate) having a high specific gravity as inorganic fillers in a certain amount of polypropylene resin. When the inorganic fillers selected and used in talc, etc. are used in a certain amount, it was confirmed that the sound absorbing effect was further enhanced.

In the floating floor construction method of the present application, the structure is spaced about 30 ± 20 mm between the slab floor surface of the building and the floor support structure, and the floor support structure has a floor support portion at intervals of about 10 to 25 cm at the bottom. The support part may form a conical or polygonal pillar, a polygonal pyramid, a cylindrical shaped protrusion to form a structure spaced apart from the bottom of the slab, or a structure spaced apart by a distance through an elastic rubber packing material.

In addition, it may be possible to use the bottom plate structure plastic material of the present invention in the form of a plate or a sheet (roll) by using a soft resin or rubber material to form a sheet (roll).

The heat insulating material, the cushioning material or the floor impact sound reducing material installed above the floor support structure of the present application can be used for any purpose of blocking, suppressing and reducing impact energy with insulation-buffering and soundproofing functions. Floor impact sound reducing materials are generally glass fiber (rock surface plate structure, glass wool, rock wool) or synthetic rubber, waste tire grinding chip, cross-linked 5 ~ 40 times foamed PE sheet, moisture proof waterproof coated glass wool, moisture proof coated rock wool, moisture proof Waterproof coated PET fiber sheet, EVA foam panel, EPS panel, urethane panel, binder coated waste tire chips, dustproof rubber, asphalt coating sheet, polymer foam and the like can be selected from any one of the group consisting of.

In addition, between the floor support structure and the slab bottom surface is characterized in that the sound absorbing material is made of a composite material of a combination of two or three of the sound absorbing material selected from volcanic stone, palm coal, sand as a sound absorbing material is used.

Therefore, the present application as a floor structure construction method of the apartment house to improve the insulation performance and floor impact sound reduction performance, the first step of performing the ground cleaning and smoothing work after pouring the concrete slab;

A second step of forming a space having a predetermined height (30 ± 20 mm) between the floor supporting structures on the upper surface of the concrete slab;

A third step of stacking the sound absorbing material consisting of a composite of a sound absorbing material selected from volcanic stone, palm coal, and sand alone or a combination of two to three in the space at a height of 20 ± 10 mm;

It provides a building floor structure construction method comprising the fourth step of installing a thermal insulation + cushioning material and / or floor shock absorber to the top of the floor support structure.

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

Example 1

In order to obtain a prefabricated bottom support structure shown in FIG. 2 using polypropylene resin among synthetic resin raw materials for use as a floor support structure to be used herein, polypropylene resin: 80 parts by weight, barium sulfate: 20 parts by weight of raw materials To obtain an injection molded product having a width: length: height = 450 × 450 × 15 mm as a prefabricated injection molded product.

The bottom support structure is formed with a plurality of holes (holes) to the bottom of the bottom support structure by about 15 cm intervals, 3 cm high convex protrusions to maintain a certain distance from the concrete slab surface In order to provide easy site construction, a row of concave portions 44 are formed at one side (right and bottom) of the floor support structure, and a convex portion 45 is formed at another side (upper, left). In order to easily assemble and connect the assembly at a later site construction, an injection molded product was obtained.

Example 2

Polyurethane resin is added in the ratio of 75% by weight of polyurethane resin and 25% by weight of active carbon to porous material to give sound insulation (solid sound) removal effect and increase the density in polyurethane resin to improve sound absorption. The foam shown in Fig. 3 was obtained in 450 × 450 × 30 mm size.

Example 3

In order to confirm the effectiveness of the floating floor deformation construction method to be applied here, a prefabricated floor support structure made of the polypropylene resin injection molded product obtained in Example 1 was cast from the upper part of the slab thickness 150mm in the apartment construction site with a dedicated area of 25.7 pyeong. After arranging and mixing the volcanic stone and palm charcoal 1: 1 in the spaced part between the floor support structure and the slab, fill the 20mm, and place the foamed molded product obtained in Example 2 on the upper part of the floor support structure. When the gap was sealed with sutures such as urethane and filled with cement mortar 45 mm at the top, and then applied in the order of floor finishing materials, the measured values of average light weight noise of 53 dB and average weight noise of 47 dB were obtained.

It will be described in detail based on the drawings presented to show the technical spirit of the present invention in detail.

1 is a view showing one embodiment of a conventional impact noise reducing material Inba, referring to the prior art with reference to Figure 1, the conventional impact noise reducing material 10 is a three-layer structure consisting of the upper layer, middle layer, lower layer. The upper and lower layers are formed of upper and lower foam layers 11 and 13 made of crosslinked foamed polyethylene, and an intermediate buffer layer 12 in which waste tire chips are bonded with a binder is inserted in the middle layer.

In the conventional floating floor construction method using the impact sound reducing material 10, a conventional impact sound reduction material 10 is disposed on a concrete slab, and a conventional lightweight foam concrete and a finishing material are installed on the impact sound reduction material 10. Has been the most construction method for the conventional noise reduction.

FIG. 2 shows a perspective view of a 2a or bottom support structure injection as the bottom support structure injection material of the present application, and a 2b or a front view of the bottom support structure injection material. The hole 25 is perforated and forms a support protrusion 22 having a height of about 3 ± 2 cm at intervals of about 10-25 cm to the bottom of the base plate to maintain a predetermined distance from the concrete slab surface. It forms a spaced layer and forms one row of concave portions 23 on one side (right and bottom) of the bottom support structure, and another convex portion 24 on one side (upper and left) to form a site later. Shown is an injection molded structure having a structure that facilitates prefabricated construction.

3 shows a polyurethane-based foam 30 to be stacked on the bottom of the floor support structure bar 3a, the foam 31 of the flat plate structure, the foam 32 having a projection in 3b, the slate bone shape in 3c Although the foam 33 having the bent portion of the bar is shown by way of example, in FIG. 3, only the polyurethane foam foam 30 is illustrated as a material deposited on the bottom of the bottom support structure 20, but the bottom support structure 20 of the present application is shown. ) The material that can be installed on the top can be any material that can be used for insulation, shock absorber or floor impact sound reduction, and can be used for blocking, suppressing and reducing impact energy. Reducing materials generally include glass fibers (rock surface plate structures, glass wool, rock wool), synthetic rubber, waste tire grinding chips, cross-linked 5 to 40 times foamed PE sheet, moisture-proof waterproof coated glass wool, moisture proof It is selected from the group consisting of water-coated rock wool, moisture-proof waterproof coated PET fiber sheet, EVA foam panel, EPS panel, urethane panel, binder coated waste tire chips, dustproof rubber, asphalt coated sheet, polymer foam, etc. Can be used.

Figure 4 shows an embodiment of the case is installed in the field by laying the floor support structure 20 made in Figure 2 in a prefabricated and partially stacked polyurethane foam to the top, first picking the bottom surface The bottom of the base plate is arranged prefabricated according to the structure of the concave portion 23 and the convex portion 24 formed on the side of the bottom support structure 20 formed by forming the support protrusion 22 and the bottom support structure 20 The bottom portion forms a spaced space of about 30 mm by the support protrusion 22, and the space portion fills the sound absorbing material with about 20 mm and has a foam 33 having a valley-shaped bent portion above the bottom support structure. An example of arranging and stacking is shown: glass fiber (rock surface plate structure, glass surface, rock wool), synthetic rubber, waste tire grinding chip, cross-linked 5 to 40 times expanded PE on the bottom support structure 20. Choose from sheets, moisture-proof coated glass wool, moisture-resistant coated rock wool, moisture-proof coated PET fiber sheet, EVA foam panel, EPS panel, urethane panel, binder coated waste tire chips, dustproof rubber, asphalt coated sheet, polymer foam, etc. Arrange the upper layer having the function of insulation + shock + floor impact sound reducing material, and the corner portion and the gap are sealed with sutures such as urethane, and then the cement mortar can be filled and finished through the process of FIG. 5. One embodiment is shown.

Figure 5 shows an embodiment of the field construction to achieve the floor shock sound blocking structure of the present application, generally the floor structure of the building without the conventional floor noise regulation slab (slab) to form each floor according to the use or scale of the building ), The thickness of floor houses is generally 135mm between floor slabs, 30mm of Schiropol insulation on top of them, and 35mm of foam concrete on top of them, and 45mm of finishing mortar on top of them. Although there were many specifications to be constructed, in the embodiment specification of FIG. 5, the bottom support structure 20 and the polyurethane foam, which are the polypropylene resin injection moldings obtained in Examples 1 and 2, from the upper part of the reinforced concrete slab 50 having a thickness of 150 mm In order to apply the method of construction modifications of the present method using the foam 30, the bottom portion of the bottom support structure 20, the projections ( 22) is extended to be spaced 30mm from the slab bottom surface, filled with a sound absorbing material 40 mixed with volcanic stone and palm coal in a 1: 1 ratio to 20mm, the bottom of the bottom support structure 20 The polyurethane foam foam 30 was piled up and assembled 30 mm, and the assembly and each corner portion and the gap portion were sealed with a suture material such as urethane, and then cement mortar (60) 45 mm was installed and the floor finishing material (70). The construction method which finishes by the construction method in order is suggested.

That is, the technical idea of the present application is a modified embodiment of the floating floor construction method, and the spaced layer is formed between the slab bottom surface of the building and the floor support structure supporting the heat insulating material, the cushioning material, or the floor impact sound absorbing material by about 30 ± 20 mm. It is intended to fill the sound absorbing material between about 20 ± 10 mm in the spaced layer of the bottom of the bottom support structure, the sound absorbing material is selected from volcanic ash, palm coal or sand can be used alone or mixed 2-3 pieces. It is a technical idea to provide a construction method using a sound absorbing material.

As described above, the floor support structure according to the present invention has the effect of being able to block the impact sound or various noises and heat dissipation by forming a space at the bottom surface of the building and embedding a sound absorbing material in the space. In particular, by attaching the insulation + shock absorber and / or the floor impact sound reducing material to the upper side of the floor support structure, the sound insulation and heat insulation properties can be further improved, and when the floating floor structure is constructed using this, the sound insulation and sound insulation are convenient. Has the effect of improving the characteristics.

Claims (2)

In the construction method of the floor structure of the building to improve the insulation and floor impact sound reduction performance, A first step of performing ground cleaning and smoothing after pouring concrete slab; A second step of forming a spaced space at a predetermined height (30 ± 20 mm) between the concrete slab and an upper surface of the concrete slab, A third step of stacking the sound absorbing material in the separation space at a height of 20 ± 10 mm; A fourth step of installing a heat insulation-buffer material or a floor impact sound reduction material above the floor support structure; Building floor structure construction method comprising the. The method of claim 1, The sound absorbing material to be filled in the space is selected from volcanic stone, palm coal, sand is used alone or building floor structure construction method characterized in that used in two to three composites.

Images