KR20120041825A - Floor structure for decreasing floor impact noise and floor material proper to the structure - Google Patents

Abstract

Reinforced concrete slab layer, the insulation sound insulation layer is installed on the slab layer, the heating pipe is installed on the heat insulation sound insulation layer, the filling layer covering the heating pipe, the finishing layer is provided on the filling layer, the insulation sound insulation layer is An interlayer noise preventing floor structure and a suitable flooring material are disclosed, which are formed by hot pressing in a hot plate mold including particles of an expandable mineral, an inorganic adhesive material, and a hardening material.
According to the present invention, it is possible to achieve a high insulation and sound insulation effect compared to the thickness of the insulation sound insulation layer installed in the floor structure of the apartment house, and when the insulation sound insulation layer is made of ready-made, standard products in the form of board, can be easily cut and installed on site Therefore, construction cost and effort can be reduced, and construction time can also be shortened.

Description

Floor structure for reducing floor impact noise and floor material proper to the structure}

The present invention relates to a floor structure of a multi-storey building and a flooring material suitable for the structure, and more particularly, to a floor structure and a flooring material having soundproofing and insulating functions and having sufficient strength and durability for use in the floor.

In a multi-storey residential building such as an apartment, the basic structure of the building is integrated, so noise and vibration generated in one place are easily spread and transmitted to the neighborhood through the basic structure of the building. In particular, reducing floor impact noise transmitted from the upper floor to the lower floor through slabs and walls installed at the bottom of each floor to the level that the user on the lower floor can tolerate is a very important part of the building design and construction. It is becoming.

In more detail, the impact sound of a general building can be classified into a light impact sound and a heavy impact sound. The term “light impact sound” means a sound transmitted to a lower floor by a small object falling on the floor or an impact applied to the floor when moving furniture. It is. Lightweight impact sound has a rather high frequency band, has similar noise levels in all frequency bands, and is less than 58 dB for apartment buildings.

"Heavy impact sound" means a sound generated when an adult walks when a child or the like runs or runs. The heavy impact sound is very high in the low frequency band and has a lower noise level toward the high frequency band.

However, most MDUs have some basic structure, which makes it difficult to reduce floor noise, and often rely on simple methods of increasing the thickness of slab walls to ensure statutory standards.

However, increasing the thickness of an interlayer wall reduces the internal space volume relative to the height, increases the weight of the bearing wall due to the increased weight, and increases the material cost, which is not a desirable method, and the demand for remodeling increases. It is difficult to reinforce the basic structure of an existing building.

Looking at the floor structure of a conventional multi-family house, reinforced concrete slab layer in which concrete is poured to partition the upper and lower floors, lightweight foamed concrete layer installed on the concrete slab layer for insulation, and installed on the lightweight foamed concrete layer The noise reduction layer is provided, a heating pipe such as a copper pipe or an accelerator pipe installed on the noise reduction layer, a mortar layer covering the heating pipe, and a floor finishing material provided on the mortar layer.

Floor finishing material can also play a role of noise reduction depending on the material or the manufacturing method, and the lightweight foam concrete layer also has a lot of air bubbles in the interior, there is room for sound absorption as well as insulation.

As the noise reduction material layer, a foam material is used a lot. For example, a synthetic resin foam such as urethane foam or strofoam, or a cement foam layer in which air bubbles are formed through foaming in a lightweight cement paste may be used, and there may be included granular filling materials having a particle size before foaming and curing. Can be.

However, these conventional noise reduction layers are difficult to use due to their problems of being too soft or brittle to use as flooring, construction problems that are cumbersome to construct, and low noise reduction efficiency compared to installation thickness. There were many cases.

The present invention is to solve the problem of not being able to sufficiently sound in the floor structure of the conventional multi-unit house, and an object of the present invention is to provide a floor structure and a flooring material that enables the soundproofing efficiency is improved.

An object of the present invention is to provide a floor structure and a flooring material used therein that can increase the convenience of construction in the floor structure of the apartment house.

An object of the present invention is to provide a floor structure and flooring material that can reduce the noise between floors without additional floor thickness and weight increase in the remodeling of the existing apartment.

Floor structure for heating of the present invention for achieving the above object,

Reinforced concrete slab layer, the insulation sound insulation layer is installed on the slab layer, the heating pipe is installed on the heat insulation sound insulation layer, the filling layer covering the heating pipe, the finishing layer is provided on the filling layer, the insulation sound insulation layer is It includes particles of the expandable mineral in the expanded state, and an inorganic adhesive and a hardening material, characterized in that the hot pressing molding in the hot plate mold.

In the present invention, the thermal insulation sound insulating layer is formed of a single layer board (floor material) including the expanded mineral particles in the expanded state, or is formed in a sandwich form by interposing the expanded mineral particle layer in the expanded state between the two boards containing the expanded mineral particles. Can be.

The thickness and density of each flooring and intumescent mineral particle layer can be adjusted according to the target interlaminar noise attenuation requirements, and the composition of the intumescent minerals is appropriately proportioned to vermiculite, pearlite, sepiolite, etc. according to these characteristics and desired flooring characteristics. Can be distributed as

At this time, the single-layer board is 70 to 90% of the expanded state of the expanded minerals of calcite (sepiolite), vermiculite (vermiculite), pearlite (perlite) and kaolin (kaolin) fine powder 5 to 15%, The base material including the inorganic adhesive material and the hardener 5 to 15% and a mixture of a small amount of water may be formed by heating and pressing in a hot plate mold. Expandable minerals can be expanded several times to several tens of times before they expand, depending on the water content and the heating temperature, and may be used to expand from 10 to 40 times the initial volume at a temperature of approximately 750 ° C to 1200 ° C. While heating to a temperature of 150 ℃ to 200 ℃ can reduce the 50 to 70% of the volume initially put into the mold by a hydraulic press to form a flooring (board) compressed to a volume of 30 to 50%. In the insulation soundproof layer having an intervening layer of expandable mineral particles between the two floors, the lower floor material can use a relatively light and soft one by reducing the compressibility, and the upper floor material can use a relatively heavy and hard one by increasing the compressibility.

In the present invention, the filling layer is preferably made of a material having better heat transfer and higher hardness than the insulating sound insulating layer, and is commonly referred to as ocher and is a mixture of mud, mud and crest, and granules having a small particle size. This added mixture can be used.

In the present invention, the finishing layer may be made of a single finishing layer on the filling layer, or may be made of a plastering layer such as cement mortar and the exterior layer directly exposed to the outside.

According to the present invention, it is possible to achieve a high insulation and sound insulation effect compared to the thickness of the insulation sound insulation layer installed in the floor structure of the apartment house, and when the insulation sound insulation layer is made of ready-made, standard products in the form of board, can be easily cut and installed on site Therefore, construction cost and effort can be reduced, and construction time can also be shortened.

Particularly, according to the present invention, there is an advantage that the floor noise can be reduced without increasing the floor thickness without increasing the floor thickness in the remodeling of the existing apartment as well as the newly created apartment house. In this case, since the floor noise can be reduced without increasing the existing floor thickness, it is possible to reduce construction problems such as the need to change the door frame height to reduce the floor noise.

1 is a perspective cross-sectional view showing a floor structure according to an embodiment of the present invention.
2 is a cross-sectional view showing a floor structure according to another embodiment of the present invention.

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

1 is a perspective cross-sectional view showing a floor structure according to an embodiment of the present invention. Here, the floor structure is provided with a heat insulation sound insulation layer on the reinforced concrete slab layer 10 as usual, and a heating pipe 60 of the same shape and material as that on the heat insulation sound insulation layer is provided.

The heating pipe 60 can adjust the gap between the diameter and the pipe as needed, it can be constructed using an axle pipe made of copper pipe or synthetic resin. Naturally, wires, pins, or gap-holding members can be used around the pipe to fix the location of the heating pipe, if necessary.

However, the heat insulation soundproof layer here uses a flooring material using expandable minerals instead of the conventional foam type soundproof layer. The flooring may have a form called panel or board, and is not directly installed in the field, but is usually used as a ready-made product that is carried in the factory. The flooring is formed in a hot plate mold in which a press is installed to enable high temperature heating and pressurization.

Flooring using the expandable mineral can be prepared as follows.

First, vermiculite (vermiculite), which is an expandable mineral, is ground. After crushing the processed vermiculite in a size of 1 to 3 mm, the particle size screened vermiculite is rapidly heated to 700 to 1000 ° C. to exfoliate and expand 10 to 15 times. Peel expansion can be achieved in an expansion device with an expansion furnace known in the art.

Vermiculite (vermiculite) used in the present embodiment is a mineral produced by weathering or hydrothermal alteration of biotite, and water molecules are bonded therein, and when heated to a high temperature, bubbles are formed while moisture inside the mineral evaporates. Innumerable pores form inside and expand to 20-40 times the volume of the gemstone.

The emissivity and radiation energy of the vermiculite of the vermiculite were measured by using the FT-IR Spectrometer at the measurement temperature of 40 ℃ and compared with the black body.The emissivity of vermiculite was 0.898 (5 ~ 20 ㎛). Vermiculite had an emission energy of 3.62 × 100 W / m ² (40 ° C.).

Inorganic adhesive blended from 75 to 89% by weight of expanded vermiculite with 9 to 23% by weight of finely divided loess (kaolin), 0.92 to 1.3% by weight of sodium silicate and 0.59 to 0.97% by weight of silica sol, and 0.17 to 0.20% by weight of inorganic curing agent And mix | blended, and it heat-presses.

At this time, the kaolin emissivity was 0.93 (5 ~ 20㎛) and the kaolin emission energy was 4.31 × 100 W / m ² (40 ℃). The strength of the plate is increased by the addition of kaolin, it can have the effect of far-infrared radiation beneficial to the human body, the energy saving effect by heat storage, antibacterial effect and moisture condensation prevention effect. Although mentioned here separately from the inorganic adhesive material, kaolin is also a kind of inorganic adhesive material and may serve to bind expanded particles.

In addition, the physical properties of sodium silicate are silicate ion, polysilicate ion and colloidal silicate ion micelles (Micell) in the form of SiO ₂ / Na ₂ O, which generally forms a flow at 550 ~ 700 ℃ to melt at 1300 ℃ .

On the other hand, Mg-Al sulfonate or silicic acid may be added or used separately as an inorganic adhesive.

The inorganic hardener is Portland cement, commonly referred to as cement, and the main component of Portland cement is lime, silica, alumina and iron oxide. Among the silica components, lightweight materials such as fly ash may be used in lightweight cement.

The temperature for mixing and heating the inorganic adhesive to the expandable mineral is 80 ~ 120 ℃, the pressing force is 35 ~ 80 kg / cm ² . At this heating temperature, the viscosity of the adhesive is sufficiently low, and the strength is excellent because the adhesive is firmly adhered as the inorganic adhesive is sandwiched between the mineral particles by the pressing force. If the pressing force is too small, the strength of the flooring to be formed is weak and too large, the bubble layer is reduced to reduce the effect of the thermal insulation soundproofing, if too large pressing force is required, the installation cost of the hardware increases.

Loess from which exfoliated expanded vermiculite and bio mineral far-infrared rays are light, fireproof is more than 1400 ℃, humidity (RH) is less than 1% at 75%, and condensation is prevented due to internal and external temperature differences. Therefore, by controlling the temperature change in the room to maintain normal body temperature with internal air purification and bio mineral far-infrared rays and vitalize skin health metabolism, the effects of the resonance resonance effect of the human body such as stress relief, digestion promotion, muscle pain relief and waste product promotion Can be obtained.

In the present embodiment, the expandable mineral particle layer 30 interposed between the two flooring materials 20 and 40 to form the entire thermal insulation soundproof layer is a granular body that is selected based on the particle size after grinding vermiculite. It can be used alternatively or additionally, and can be installed as an aggregate without a separate binder as a sand layer around a pipe in a conventional floor structure.

In this case, the expandable mineral particle layer 30 does not reduce the volume by applying pressure separately, but may naturally decrease in volume by the weight of the layers on the upper side. This makes it possible to act as adiabatic and vibration (including negative vibration) attenuation by the air layer of voids contained between the particles.

The bottom ash 40 above the expandable mineral particle layer 30 has a higher compressibility than the bottom ash 20 below the expandable mineral particle layer 30 and is thus formed more firmly. For example, in forming the bottom flooring material 20, the upper flooring material 40 may be compressed if the mixture of expandable mineral particles, kaolin, inorganic adhesive material, and hardening material is removed from the initial volume to remove 50 to 60% of the volume. In forming, it is possible to make a stronger compression to remove the volume of 70% of the initial volume so that the upper flooring material 40 is hard and resistant to external impact.

The filling layer 50 covering the heating piping 60 must transfer the heat from the surface of the heating piping 60 to the floor surface well while having mechanical durability to support the finishing layer well when a mechanical shock is applied to the finishing layer. do.

This embodiment uses a mixture of mud and crests, commonly referred to as ocher and used for conventional thatched walls. In this case, components such as elvan rich in far-infrared radiation may be added. Mud and crests may consist of a ratio of 7: 3 to 8: 2 and may contain elvan in the range of 10% of the total. When the specific gravity of the crest is increased, it is easy to lose its rigidity as a structural member, and heat transfer may be disturbed by the air in the crest, and when the amount of the crest is too small, the brittleness of the filling layer 50 may increase, which may weaken the mechanical durability. .

In this embodiment, the finishing layer is made of a conventional plastering layer 70, such as cement mortar with a higher cement ratio, and an exterior material layer 80 that is directly attached or installed on the plastering layer 70 to be exposed to the outside. The exterior material layer 80 may be in various forms such as a floorboard made of pulp material such as an ondol floorboard, a synthetic resin flooring material, or a wooden floor layer.

2 is a cross-sectional view showing another embodiment of the present invention.

Compared with the floor structure of Figure 1 there is a difference in the insulation sound insulation layer and the filling layer structure.

That is, in this embodiment, the heat insulation soundproof layer is composed of the bottom floor material layer 120 under the heating pipe 160 and the side floor material layer 140 between the heating pipe at the side of the heating pipe 160.

The bottom floor layer 120 is 10% by weight of the expansive mineral sepiolite (calcite), 40% by weight vermiculite (vermiculite), 30% by weight of perlite (pearlite) 10% by weight of kaolin (kaolin), fly ash as the main component Light cement, sodium silicate, and silica sol, which are mixed with a small amount of water, are placed in a hot plate mold and heated and pressurized by a hydraulic press.

Here, vermiculite is soft and grainy, while sepiolite is grainy, but there are many soil crystals, and it is strong in absorbing moisture and absorbing moisture. It is strong in nature and is used a lot as artificial soil for plant cultivation.

At this time, the expandable minerals are screened to a particle size of 2mm in diameter, and the selected particles are immersed in a sodium hydroxide solution, and then rapidly heated to 900 ° C. in a state where some of the solution is immersed to expand to 12 to 15 times the size of the gemstone. 1 kg of loess, 100 g of sodium silicate, 70 g of silica sol, and 20 g of lightweight cement as a curing agent are mixed with 8 kg of expandable mineral (which may contain some sodium hydroxide), heated to 100 ° C. in a mold and The bottom floor layer was prepared by removing 70% and pressing to leave 30%.

The side flooring layer 140 between the heating pipes 160 may also be made in the same manner as the lower flooring layer 120, but may be formed more firmly by varying the heating temperature and pressure in the hot plate mold.

The heating pipe 160 is installed between the side flooring layer 140, and the remaining space of the side flooring layer 140 is filled with the filling layer 150. Since the side flooring layer 140 is not installed adjacent to the heating pipe 160, the heat of the heating pipe 160 does not significantly affect the transfer of heat to the surface of the plastering layer 170 or the exterior material layer 180 of the floor structure. On the other hand, the side flooring layer 140 absorbs much of the vibration noise from the outside in the process of being transferred to the lower flooring layer 120 in many floor areas except for a part of the width around the heating pipe 160 to increase the sound insulation effect. Can be.

That is, in such a structure, the thickness of the entire floor structure is reduced by increasing the substantial thickness of the entire insulation sound insulation layer while overlapping the partial thickness with the heating pipe 160 and the filling layer 150 to increase the sound insulation efficiency per thickness of the sound insulation layer. It becomes possible.

On the other hand, the side flooring layer 140 may form only the side flooring layer as a mold, but can also be formed integrally with the bottom flooring layer, in this case, it is only necessary to install the heating pipes in the integrated flooring, so the cost of floor construction and You can save time.

The foregoing has been described in detail with reference to the limited embodiment of the present invention, which is only illustratively described to help the understanding of the present invention, and the present invention is not limited to these specific embodiments. That is, one of ordinary skill in the art to which the present invention pertains may make various modifications or applications based on the present invention, and such modifications and applications belong to the appended claims.

Claims (6)

Reinforced concrete slab layer, the insulation sound insulation layer is installed on the slab layer, the heating pipe is installed on the insulation sound insulation layer, the filling layer covering the heating pipe, made of a finishing layer is provided on the filling layer,
The insulating sound insulation layer is a floor structure for preventing noise between floors, characterized in that it comprises a flooring material formed by heating and pressing the mixture of the expanded mineral particles in the expanded state and the inorganic adhesive and hardener in a hot plate mold. The method of claim 1,
The insulating sound insulation layer is an interlayer noise prevention floor structure, characterized in that the sandwich between the two layers of the expanded mineral particles in the expanded state including the expanded mineral particles in the expanded state in the form of a sandwich. The method of claim 1,
The bottom ash is 70 to 90% of the expanded state of the explosive minerals (Sepiolite), vermiculite (vermiculite), pearlite (pearlite) and 5 to 15% of kaolin (kaolin) fine powder, inorganic adhesives and hardeners 5 Interlayer noise prevention, characterized in that formed by pressing a mixture of the base material and water containing from 15% to 15% to 30% to 50% of the initial volume while heating to 150 ℃ to 200 ℃ in the hot plate mold Floor structure. The method of claim 1,
The heat insulation soundproof layer is composed of a bottom floor layer located below the heating pipe and the side floor material layer provided on the side between the heating pipe,
The filling layer is a floor structure for preventing noise between floors, characterized in that filling the remaining portion of the space occupied by the heating pipe among the space between the side floor layer. The method of claim 4, wherein
The lower flooring layer and the side flooring layer is characterized in that the integral floor molded for noise prevention floor structure. 70 to 90% of expanded particles of expanded minerals, such as calcite (sepiolite), vermiculite (vermiculite) and pearlite (pearlite), 5 to 15% fine powder of kaolin (kaolin), inorganic adhesives and hardening materials 5 to 15% An interlayer noise prevention flooring material comprising a mixture of a base material and water comprising a pressurizing method until the mixture is heated to 150 ° C. to 200 ° C. and pressurized until it reaches 30% to 50% of the initial volume. .

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