KR102139181B1 - Noise reduction reinforcement method between floors in buildings with high functional mortar comprising poss nano-complex - Google Patents

Abstract

According to the present invention, a method for reducing noises between floors of an apartment house using high functional mortar including a POSS nanocompound includes the following steps of: installing a concrete wall; installing a composite mortar layer on the concrete wall by the high functional mortar using hybrid epoxy resin; installing a first board and a second board attached to the concrete wall; and installing a first connector and a second connector connecting the firs board and the second board.

Description

Reduction of floor noise in apartments using high-functional mortars containing POSS nanocomposites. {NOISE REDUCTION REINFORCEMENT METHOD BETWEEN FLOORS IN BUILDINGS WITH HIGH FUNCTIONAL MORTAR COMPRISING POSS NANO-COMPLEX}

The present invention is a reinforcement method for reducing the floor noise of a multi-family house using a high-functional mortar using nanotechnology-based POSS nanocomposite, and more specifically, using a high-functional mortar made of a hybrid epoxy resin containing POSS nanocomposite. It is about the inter-floor noise reduction method of multi-family house that prevents.

As Korea rapidly promotes apartment housing construction projects centering on apartments in order to create a comfortable environment and promote an efficient residential life by resolving housing shortages and improving land use rates, currently, 74.5% of Korean national housing It is a typical type of residence inhabited.

Until the 1980s, a large number of apartments with wall structures were built, and thereafter, until the advent of high-rise apartments and multi-storey apartment buildings in the late 1990s, the main structural form of domestic multi-family houses consisted of wall structures. Wall-type apartments, which are now 20 years old, have gradually begun to undergo structural aging as well as a decline in function and space, and as a result, there are many social problems.

In particular, in the old apartments and apartments, there was a high level of crime, including murder and fire, over the conflict between neighbors due to the floor impact noise, and there was increasing public opinion to include floor noise and vibration in the safety diagnosis evaluation items during reconstruction.

Accordingly, the standard construction of the new building and the integrated floor structure are required to construct a floor structure that satisfies both a certain thickness and a certain blocking performance, but the sound insulation regulations for the existing building are insufficient.

Floor impact noise, which is a problem with floor noise, is a lightweight impact sound that generates high-frequency band sounds such as small objects falling and furniture dragging, and heavy, soft sounds that occur when a person walks or runs while a low-frequency sound is generated. It is classified as impact sound, and it is not enough to reduce both light and low impact sounds by using only a sound insulating material or sound absorbing material.

In order to solve this, there is a method of reinforcing the structure by increasing the thickness of the concrete slab on the floor of the building, but the load on the building is increased, the construction cost is high, and the impact of increasing the sound insulation performance is significantly increased compared to the burden of increasing the cost of increasing the thickness of the slab. It is said to be insane.

In addition, conventionally, the finishing mortar, lightweight foam concrete, and sound insulation materials are constructed in separate layers, and a separate insulating layer is provided, so the process is complicated and economical due to individual multi-level construction. In particular, there is no construction technology that is unified for sound insulation effect, insulation performance, and strength improvement related to floor noise in existing buildings, and materials developed for the suppression of floor noise have limitations in terms of fire resistance and durability. There are difficulties.

Since concrete structures have reduced structural stability due to aging and environmental factors, noise suppression technology that can be applied to both new and old reinforced concrete structures is needed. There is a demand for a construction method considering economics.

For reference, the current standards for floor noise are as follows.

Korean Patent Publication No. 10-2006-0021052

The present invention is an invention devised to solve the above-mentioned problems of the prior art, while reducing the floor noise and effectively considering the economic efficiency according to the slab thickness of the reinforced concrete structure. The aim is to present an economical interlayer noise reduction reinforcement method and structure that can be reduced.

The present invention is a reinforcement structure for reducing the noise between floors of a multi-family house using a high-functional mortar made of a hybrid epoxy resin containing POSS nanocomposite, which is lightweight and has high strength and durability, and provides a high-functional composite mortar layer that absorbs light weight impact sound and heavy impact sound. Application is to provide an effective method for interlayer noise.

In particular, it is intended to provide an effective construction method that satisfies both the sound insulation performance to block interlayer noise and vibration (solid sound) and the sound absorption performance to absorb noise and vibration sound while preventing the noise from hitting the surface and being reflected.

Concrete may crack due to materials, construction conditions, environmental conditions, etc., and the sound insulation performance decreases and heat loss increases due to these cracks, so it is possible to reduce floor noise and improve the insulation performance of the floor of an apartment house. We intend to provide a reinforcement method for reducing floor noise by applying a unified reinforcement method.

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a method for reducing floor noise in a multi-family house using a high-functional mortar containing a POSS nanocomposite according to the present invention comprises: installing a concrete wall; Installing a composite mortar layer with a high-functional mortar using a hybrid epoxy resin on the concrete wall; Installing a first board and a second board attached to the concrete wall; And installing a first connector and a second connector connecting the first board and the second board; The first connector surrounds the vertical and horizontal surfaces adjacent to each other of the first board; The second connector surrounds the horizontal and vertical surfaces of the second board facing the vertical and horizontal surfaces of the first board; The first connector is fixed to the wall by a fixing means; A groove is formed in the first connector, and a protrusion is engaged with the groove in the second connector; The high-functional mortar is composed of a POSS nanocomposite prepared by a hydrocondensation reaction of a silane compound, a hybrid epoxy resin prepared by mixing with an epoxy resin, a curing agent, and a filler, and a cement mortar and water; The silane compound is a mercaptopropyl polyhedral oligomeric silsesquioxane (POSS-SH) prepared using (3-mercaptopropyl)trimethoxysilane. ego; The curing agent is selected from EDA (ethylene diamine), polyamide, modified aliphatic amine, and poly amine as a curing agent for curing the epoxy and modified with a thermosetting material, but the target property of the epoxy after curing, deterioration of workability (workability) due to curing, Curing accelerator and diluent are added in consideration of the target curing speed; The curing accelerator is selected from phenol, cresol, nonylphenol, bisphenol-A, alkylphenol, tertiary amine when the curing agent is a modified aliphatic amine or polyamine; Silica is used as the filler, but calcium carbonate, a rosin derivative having an acid value of 300 mgKOH/g or less, and an imidazole compound are mixed with the silica.

In the inter-layer noise reduction method according to the present invention, the protrusion is slidably connected to the groove, and the first connector and the second connector can be made of an elastic material.

In the inter-layer noise reduction method according to the present invention, an inclined surface into which the protrusion is inserted is formed in the groove, and the inclined surface may be formed to be inserted into the groove while the protrusion is sliding down.

In the inter-layer noise reduction method according to the present invention, a plurality of fixing protrusions are formed at regular intervals on a vertical surface of the second board, and a size corresponding to the fixing protrusions on a vertical surface of the second connector corresponding to the vertical surface of the second board. A plurality of locking grooves are formed so that the fixing protrusions can be fitted into the locking grooves having a corresponding height according to the required fixing height of the second connector.

In the inter-layer noise reduction method according to the present invention, a plurality of fixing protrusions are formed at regular intervals on a vertical surface of the second board, and a size corresponding to the fixing protrusions on a vertical surface of the second connector corresponding to the vertical surface of the second board. A plurality of locking grooves are formed so that the fixing protrusions can be fitted into the locking grooves of a corresponding height according to the required fixing height of the second connector, and the locking grooves coupled to the fixing protrusions and the fixing protrusions are each of the first It can be positioned below the center point in the height direction of the two boards and the second connector.

Another method for reducing floor noise according to the present invention includes the steps of installing a concrete wall; Installing a composite mortar layer with a high-functional mortar using a hybrid epoxy resin on the concrete wall; Installing a first board and a second board attached to the concrete wall; Constructing a floor finishing material on the composite mortar layer, and installing a first connector and a second connector connecting the first board and the second board; The first connector surrounds the vertical and horizontal surfaces adjacent to each other of the first board; The second connector surrounds the horizontal and vertical surfaces of the second board facing the vertical and horizontal surfaces of the first board; The first connector is fixed to the wall by a fixing means; A groove is formed in the first connector, and a protrusion is engaged with the groove in the second connector; The high-functional mortar is composed of a POSS nanocomposite prepared by a hydrocondensation reaction of a silane compound, a hybrid epoxy resin prepared by mixing with an epoxy resin, a curing agent, and a filler, and a cement mortar and water; The silane compound is a mercaptopropyl polyhedral oligomeric silsesquioxane (POSS-SH) prepared using (3-mercaptopropyl)trimethoxysilane. ego; The curing agent is selected from EDA (ethylene diamine), polyamide, modified aliphatic amine, and poly amine as a curing agent for curing the epoxy and modified with a thermosetting material, but the target property of the epoxy after curing, deterioration of workability (workability) due to curing, Curing accelerator and diluent are added in consideration of the target curing speed; The curing accelerator is selected from phenol, cresol, nonylphenol, bisphenol-A, alkylphenol, tertiary amine when the curing agent is a modified aliphatic amine or polyamine; Silica is used as the filler, but is composed of calcium carbonate, a rosin derivative having an acid value of 300 mgKOH/g or less, and an imidazole compound mixed with the silica.

In the inter-layer noise reduction method according to the present invention, the protrusion is slidably connected to the groove, and the first connector and the second connector can be made of an elastic material.

In the inter-layer noise reduction method according to the present invention, an inclined surface into which the protrusion is inserted is formed in the groove, and the inclined surface may be formed to be inserted into the groove while the protrusion is sliding down.

In the interlayer noise reduction method according to the present invention, the component of the epoxy resin is bisphenol A diglycidyl ether (Bisphenol A diglycidyl ether, DGEBA).

In the interlayer noise reduction method according to the present invention, the curing agent is EDA (ethylene diamine).

In the interlayer noise reduction method according to the present invention, the POSS nanocomposite includes at least one of foam rubber (Ethylene-Vinyl Acetate Copolymer, EVA), expanded polystyrene (EPS), and polypropylene (Polypropylene, PP). It can be used in combination with a reinforcing material.

In the interlayer noise reduction method according to the present invention, the composite mortar layer is additionally vinyl chloride, polymer rubber, iron, melamine foam, foamed polystyrene to improve sound insulation, sound absorption, or heat insulation performance in a high-functional mortar using the hybrid epoxy resin. (Expanded Polystyrene, EPS), polypropylene (Polypropylene, PP) may be composed of a material containing any one or more of ultra-fine fibers, artificial mineral fibers.

In the inter-layer noise reduction method according to the present invention, noise may be absorbed through the POSS nanocomposite in which fine pores are formed.

In the method for reducing floor noise according to the present invention, a high-functional mortar according to the present invention may be used for construction, repair, and reinforcement of a house, apartment, building, road, or tunnel.

The interlayer noise reduction method of a multi-family house using a high-functional mortar containing the POSS nanocomposite according to the present invention has the following effects.

It is possible to improve the adhesion of existing concrete structures by constructing a high-functional mortar for reinforcement using a hybrid epoxy resin containing POSS nanocomposite.

That is, by using a polyhedral oligomeric silsesquioxane (POSS) nanocomposite, the compressive strength of mortar and concrete is increased to improve the durability of the reinforced part of the concrete structure, while increasing the effect of thermal insulation and fire resistance and minimizing floor impact noise.

In particular, the porous structure of the polyhedral oligomeric silsesquioxane (POSS) nanocomposite improves the filling efficiency of the inner space of the mortar, prevents the occurrence of cracks, reduces the occurrence of noise, and has excellent insulation effects.

In addition, the composite mortar layer containing the hybrid epoxy resin of the present invention is constructed by a conventional design method as a sound-insulating material layer, a lightweight foam concrete (lightweight foam mortar) layer, and a finished mortar layer as a single high-functional composite mortar layer. Convenience increases

It is a structure that applied a breakthrough method that can complement the insulation performance as well as sound absorption and sound insulation performance in a high-functional composite mortar layer. In particular, when the emphasis is placed on improving the proof strength and using only the sound insulation reinforcement member, it is difficult to block the lightweight impact sound compared to the weight impact sound blocking performance, but according to the present invention, it is possible to simultaneously block the heavy impact sound and the lightweight impact sound.

In addition, since the composite mortar layer of the present invention can absorb impact noise and supplement insulation performance, it is possible to omit the use of separate sound absorbing and insulating materials, thereby shortening the air and reducing construction costs.

In addition, by constructing a composite mortar layer, the thickness of the reinforced concrete slab can be reduced to reduce the floor height of the floor layer, which is advantageous for securing the total area of the apartment.

In addition, by connecting two or more boards to a concrete slab or a concrete wall (or it can be a concrete slab) by combining a groove-protrusion, the construction is simplified and the connection between the board and the board is connected to the board. By covering the area wide, it is possible to block the transmission of noise or vibration.

The spacing between two or more boards on a concrete slab or concrete wall (or it can be a concrete slab) is provided between the boards that can block or delay the transmission of sound and vibration by installing a support and'C' section steel and a support plate. Can be maintained.

The effect of the present invention is not limited thereby, and another effect may be expressed by the unique configuration of the present invention.

1 is a view showing a conventional reinforced concrete floor layer.
2 is a view in which a sound insulation material is conventionally constructed on a concrete floor.
3 is a view showing the bottom layer of the reinforced concrete of the first embodiment according to the present invention.
4 is a view showing a change in the thickness of the conventional bottom layer and the bottom layer of the first embodiment according to the present invention.
5 is a flow chart of a conventional floor layer construction.
6 is a flow chart of the construction of the bottom layer according to the present invention.
7 is a flow chart of manufacturing a high-functional mortar according to the present invention.
8 is a perspective view of a wall in which a connection board according to the present invention is installed.
9 is a view for explaining in detail the connection structure of the board and the board for forming the connection board according to the present invention.
10 is a view for explaining an embodiment in which the height of the connector is adjustable in the connection board according to the present invention.
11 is a view for explaining the installation position of the connection board according to the present invention.
12 is a view for explaining that the separation structure of the board according to the present invention is installed on the wall.
13 is a view for explaining a structure for separating the floor layer from the slab according to the present invention.

Hereinafter, preferred embodiments in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same code are used for the same configuration, and additional description will be omitted.

In the present invention, unless otherwise defined, the distinction of directions such as left and right and up and down is based on the direction in which each drawing is viewed, and the distinction between horizontal and vertical is vertical in the weight direction on the wall or slab and horizontal in the direction orthogonal thereto. Define in the direction.

The accompanying drawings are not shown according to scale, but partially enlarged and reduced to illustrate the technical idea of the present invention.

1 is a view showing the structure of a conventional conventional floor layer. Referring to Figure 1, the conventional reinforced concrete floor layer 10 is a concrete slab (11), sound insulation material (12), lightweight foam concrete (13), finishing mortar (14), floor finishing material (15) are sequentially constructed as separate layers It was becoming.

In the conventional reinforced concrete floor layer 10, the concrete slab 11 is generally constructed at 180 mm. To prevent interlayer noise, the thickness of the concrete slab 11 may be increased to 210 mm or more. At this time, the construction cost will increase by 5-6%. In addition, there is a problem of inefficiency that the impact sound is limited compared to the cost of increasing the concrete slab thickness, since the weight impact sound is reduced by 1 db compared to the increase in the slab thickness.

Currently, in new buildings, a standard floor structure and a recognized floor structure are integrated to make a floor structure that satisfies both a certain thickness and a certain barrier performance.

The conventional flooring layer of FIG. 1 is constructed in the same order as in FIG. 5, and the soundproofing material 12 is constructed on the concrete slab 11 layer, and the lightweight foam concrete 13 and the finishing mortar 14 are sequentially applied, and then the floor finishing material thereon. As the construction of (15) is not only complicated, but also increases the thickness of the bottom layer, there is a problem in securing the total floor area as an overcrowded urban building. Moreover, it is the same as described above that the sound insulation effect is not expressed as much as the thickness to be thickened.

In order to solve this problem, in the present invention, the reinforced concrete bottom layer 100 is constructed in the same manner as in FIG. 6 as shown in FIG. 3. That is, after the concrete slab 101 is constructed, it can be constructed as a composite mortar layer 102 using a high-functional mortar using a hybrid epoxy resin thereon. Therefore, the reinforced concrete floor layer 100 of FIG. 3 is a concrete slab 101, a composite mortar layer 102 and a floor finishing material 103 to simplify the construction process.

In order to provide an interlayer noise suppression reinforcing structure that satisfies both a certain thickness and a certain blocking performance by integrating a standard floor structure and a recognized floor structure, the present invention proposes a high-functional mortar using a hybrid epoxy resin containing POSS nanocomposite.

Since materials developed for the suppression of interlayer noise have limitations in terms of fire resistance and durability, materials that have the properties of organic polymers and inorganic compounds, ceramics, are simultaneously developed to introduce new functions to polymers. have. In particular, research has been conducted on organic-organic hybrid materials that simultaneously satisfy advantages such as processability, toughness, and price of polymer materials, and heat resistance and oxidation stability of inorganic materials.

POSS (polyhedral oligomeric silsesquioxane) is known for its excellent heat resistance and modulus.Synthesis of organic-inorganic mixed structures used in various fields such as aerospace, disinfectants, optical materials, microelectronics materials, semiconductor materials, cosmetics, and catalytic science materials It is a nanostructure as follows having a formula (RSiO1.5) n as a polymer.

The nano-sized particles having functional groups linked to a polyhedral Si-O-Si main chain, and R is a hydrogen, siloxy or cyclic group, or a linear aliphatic or aromatic group that may further contain a reactive functional group.

The POSS of the cage structure is a net structure in which organic-inorganic mixtures are mixed, and the silica porous particles have an inorganic property composed of siloxane bonds on the inside, and are composed of reactive or non-reactive organic compounds on the outside. POSS having such a hybrid property has mechanical properties and strength by reducing the empty space of the electrolyte to form a more robust and dense structure. In addition, it is a material that has thermal, mechanical, and electrical properties of extreme performance not found in general polymers, and can be applied in various fields, such as increasing the bonding strength by introducing various organic functional groups.

The POSS nanocomposite of the present invention is synthesized as shown in Reaction Scheme 1 below by subjecting a silane compound to a hydrocondensation reaction.

<Scheme 1>

Specifically, POSS nanocomposite is a mercaptopropyl polyhedral oligomeric silsesquioxane prepared using (3-Mercaptopropyl)trimethoxysilane as a silane compound. silsesquioxane, POSS-SH). However, the POSS nanocomposite is not limited to a compound represented by POSS-SH, and POSS compounds of various structures are synthesized through condensation reaction with other trialkoxyalkylsilane or organo-trichlorosilane. Can be.

The POSS nanocomposite is excellent in uniformity of materials, does not undergo phase separation, and is easy to fuse different materials because organic and inorganic properties are mixed.

Therefore, it is possible to obtain a high-functional mortar using the POSS nanocomposite as the organic-inorganic composite material. Due to the organic functionality of the POSS nanocomposite, it is well soluble in organic solvents and can be fused with a polymer or metal surface.

The high-functional mortar of the present invention prepares a hybrid epoxy resin by mixing POSS nanocomposite with an epoxy resin, a curing agent, and a filler such as silica as in the manufacturing method of FIG. 7.

In particular, in a preferred embodiment, at this time, the epoxy resin is a diglycidyl ether (Bisphenol A diglycidyl ether, DGEBA) of bisphenol A excellent adhesion, mechanical properties, chemical resistance, EDA (ethylene diamine) as a curing agent Used and changed from the original linear structure of epoxy resin to a three-dimensional network structure to give toughness. In addition, by adding silica particles to the epoxy resin to improve dispersibility, it is possible to prepare a hybrid epoxy resin having high mechanical strength and thermal stability.

The silica may improve the problem of unnecessary increase in member stiffness (expanding brittleness) due to excessive use of the silica inorganic filler when a part of the silica is used together with calcium carbonate. The inorganic filler, such as silica, may serve to increase the viscosity of the reinforcing material, and if it is excessive, the dispersibility is reduced, for example, a silane compound is added for the dispersion of silica.

In addition, since inorganic fillers such as silica lower kneading properties, it may be desirable to add additional additives such as carbon black or softeners.

On the other hand, in recovering the elastic modulus after a large deformation of the reinforcing material, a decrease in elastic modulus due to the high content of the inorganic filler (silica) as described above is a problem. Therefore, in the present invention, a rosin derivative having an acid value of 300 mgKOH/g or less and an imidazole compound can be mixed with the silica, and in this case, the molecular structure of the reinforcing material separated by a large strain by the interaction of the rosin derivative By recovering and recombining, the elastic modulus can be restored.

The hybrid epoxy resin of the present invention can obtain a highly functional mortar by mixing cement mortar and water as shown below.

It can be seen that the mortar containing the POSS nanocomposite has an increased compressive strength compared to the mortar not containing POSS-SH, as can be seen in the experimental results of the following table.

In addition, as can be seen in the following experimental results, it can be seen that the bubble amount increases as POSS increases in the epoxy resin including EDA and silica, which can be confirmed by SEM data.

That is, as illustrated in the following figure, it can be explained that POSS is injected into the mortar and mixed, so that the water-soluble POSS is melted and the bubble amount increases in a uniform distribution according to the curing rate (heat generation).

The three-dimensional POSS nanocomposite forms an air layer in a number of micropores and serves as a medium for conducting heat. That is, since the air layer is induced as the amount of air bubbles increases, the heat transfer rate can be lowered and the heat insulation performance can be increased, and the well-distributed small air bubbles also have the effect of improving workability and durability. In addition, interlayer noise can be reduced by absorbing and removing shock, vibration, and noise through these fine pores.

Concrete has the problem of reduced volume due to drying of moisture generated during hydration and curing process due to the nature of the material, but the high-functional mortar of the present invention shrinks due to drying of concrete by the effect of increasing the amount of air bubbles in the POSS nanocomposite. Can be prevented.

The curing agent of the present invention is an epoxy cured to be modified with a thermosetting material, and may be selected from ethylene diamine (EDA), polyamide, modified aliphatic amine, and polyamine.

In the case of blending such a curing agent, it is necessary to add a separate additive such as a curing accelerator, diluent, and filler in consideration of the target physical properties after curing, the reduction in processability (workability) due to curing, and the target curing speed.

The curing accelerator is preferably selected from phenol, cresol, nonylphenol, bisphenol-A, alkylphenol, and tertiary amine having -OH when the curing agent is a modified aliphatic amine or polyamine. Here, the tertiary amine cannot be directly cured with an epoxy group because the active hydrogen of the amine is all substituted with hydrocarbons, and acts as a polymerization catalyst.

In addition, the POSS nanocomposite can be used by being added to and mixed with reinforcing materials such as Ethylene-Vinyl Acetate Copolymer (EVA), Expanded Polystyrene (EPS), and Polypropylene (PP) microfibers. It is believed that the glass transition temperature (Tg) increases and the tensile strength increases by evenly dispersing in the reinforcing material to limit the fluidity of the polymer. In addition, it is known that a composite in which silica nanoparticles are introduced into an epoxy has an increased glass transition temperature (Tg) and an increase in tensile strength compared to pure epoxy. POSS nanoparticles can improve the physical properties of polymer resins when forming polymer resins and nanocomposites because the organic reactive groups at the ends are maintained even at high temperatures and have a uniform distribution of 100 nm or less.

Therefore, the high-functional mortar of the present invention exhibits superior performance in compressive strength, thermal conductivity, and fire-resistance performance compared to conventional mortar and concrete, so it is possible to achieve interlayer noise suppression, fire-resistance, increase in strength, and thermal insulation effect in one installation. High-functional mortar using a hybrid epoxy resin containing POSS nanocomposite having such a pluralization effect can improve problems such as low strength expression, excessive cracking, and high absorption rate of lightweight foam concrete used for conventional sound absorption and heat insulation performance. It can be used as an alternative new material.

Conventional lightweight foam concrete has a problem that it is difficult to control the foaming rate and homogeneity of the foam, but the high-functional mortar including the POSS nanocomposite of the present invention is formed with fine pores in a uniform distribution, resulting in sound absorption, sound insulation, and insulation performance. It plays an important role.

In particular, the high-functional mortar of the present invention increases the filling efficiency inside the concrete to prevent the occurrence of cracks, thereby reducing the occurrence of leaks and noise due to cracks, and increasing the heating effect due to heat insulation, and the thickness of the existing concrete slab. Can be applied to new construction, repair, and reinforcement of houses, apartments, buildings, roads or tunnels.

In addition, since the functions of the conventional sound insulation material, lightweight foam concrete, and finishing mortar of FIG. 1 are constructed as one high-functional composite mortar layer 102 in the present invention, the thickness of the reinforced concrete bottom layer is natural as shown in FIG. 4. It will decrease.

However, in this case, although the thickness decreases, there are advantages such as a reduction in construction cost and a decrease in floor height, but there is a fear that the heat transfer rate increases due to a decrease in the thickness of the floor layer, thereby deteriorating the insulation performance. However, in the present invention, the thermal conductivity is low and excellent thermal insulation effect can be expected due to the physical properties of the POSS nanocomposite forming a bubble layer by applying a high-functional mortar containing the POSS nanocomposite, thus overcoming the disadvantages of the prior art due to the decrease in thickness and insulating. Performance can be improved.

The composite mortar layer 102 of the present invention, in addition to the high-functional mortar using the hydro epoxy resin, vinyl chloride, polymer rubber, iron, melamine foam, expanded polystyrene (EPS), polypropylene (Polypropylene, PP) microfiber A material containing any one or more of fibers and artificial mineral fibers may be mixed to further improve sound insulation, sound absorption, or heat insulation performance.

In particular, the composite mortar layer 102 of the present invention can be mortarized into a single layer together with a bottom mortar by integrating a sound-insulating material and a sound-absorbing material into a high-functional mortar using the hydro-epoxy resin containing the POSS nanocomposite. The layer 102 itself can exert a soundproofing effect in both a light-weight impact sound (sound absorption effect) and a heavy-sound impact sound (sound insulation effect). That is, it is possible to construct a single layer as a new material by performing mortar treatment at the same time without installing the sound insulating material and the sound absorbing material as separate members.

The physical properties of the sound insulation material are usually high hardness or relatively rigid material that reflects and blocks the sound, and in the case of sound absorbing materials, it has a property that induces sound (so that sound absorption is possible) and induces such sound relatively. In order to have a, a material having a relatively low stiffness such as a foaming agent is used.

Due to the difference in physical properties between the sound insulating material and the sound absorbing material, the sound insulating material is advantageous for blocking heavy impact sound, and the sound absorbing material is advantageous for blocking light impact sound, so that the sound insulating material and the sound absorbing material can be used separately.

In the present invention, for example, by constructing a mixture of a spherical sound absorbing material and a sound insulating material in a mortar, the sound absorbing material absorbs noise when the noise is transmitted through the mortar. As it can be enlarged, it is possible to simultaneously achieve the noise vibration reduction between the floors and the surface treatment effect of the finishing material.

Therefore, in the present invention, by applying a hybrid epoxy resin containing POSS nanocomposite in the composite mortar layer 102 to the cement mortar, the physical properties such as the compressive strength of the mortar are greatly improved and the amount of air bubbles increases according to the curing rate (heat generation). By forming the air layer, it is possible to minimize the impact of the floor while increasing the insulation effect.

On the other hand, as described above, compared to the conventional reinforced concrete floor layer 10 of FIG. 1, the overall thickness is reduced, but since the effect of reducing the thickness on the increase in interlayer noise is not large, it is additionally added to the high-functional composite mortar layer 102. It can be sufficiently supplemented by improving the sound insulation and sound absorption performance with the sound insulation material and sound absorption material.

In the present invention, any one or more of vinyl chloride, polymer rubber, and iron is used as a sound insulating material that is additionally added to the high-functional composite mortar layer 102, and any one of melamine foam, expanded polystyrene (EPS), and PP microfiber fibers is used as a sound absorbing material. Use above. Among the sound absorbing materials described above, melamine foam is particularly advantageous in terms of processability, incombustibility and low density, and PP microfiber fibers are environmentally friendly and have high surface density.

When the sound insulating material and the sound absorbing material are mixed in the composite mortar layer 102 as well as the POSS nanocomposite, part of the noise source passing through the composite mortar layer 102 is reflected by the sound insulating material in the composite mortar layer 102, and the other part passes through the sound absorbing material. By absorbing it, the sound absorbing effect is fermented, whereby the effect that the noise between layers is attenuated is expressed.

That is, if the inter-layer noise reduction structure of the present invention is employed, it is possible to achieve sound absorption performance (light impact sound) in addition to improving the proof strength and securing sound insulation performance (heavy impact sound).

It is difficult to effectively prevent both a heavy impact sound and a light impact sound with only one of the sound insulation materials or sound absorbing materials used for the purpose of sound insulation (sound insulation) in a conventional building. In particular, gypsum board, which is commonly used as a sound insulation material, does not itself become an environmentally friendly material. There was a problem, but in the present invention, it is possible to solve the problems of construction convenience and environmental pollution by replacing it with a high-functional mortar made of a hybrid epoxy resin containing POSS nanocomposite.

In addition, the composite mortar layer 102 may be further mixed with a high-functional mortar of the present invention, such as artificial mineral fibers to improve the thermal insulation performance. That is, artificial mineral fibers in the composite mortar layer 102 are mixed together with a high-functional mortar containing POSS nanocomposites. Insulating materials such as artificial mineral fibers such as glass wool and mineral wool have fine, uniform and continuous fine pores, and the air layer is finely divided to not only block heat flow, but also have an excellent effect of absorbing sound, resulting in sound absorption and heat insulation. It can be improved further. Organic insulating materials, such as expanded polystyrene, expanded polyurethane, and expanded polyvinyl chloride, have low hygroscopicity and excellent workability, but are weak in heat, but can be supplemented by adding POSS nanocomposites with excellent fire resistance.

In addition, the high-functional mortar containing POSS nanocomposite is very small in thermal conductivity, dynamic energy absorption, high heat resistance, and compressive stress properties due to very small bubble shape surrounded by cement mortar (without breaking at once due to compressive impact) It has excellent heat insulation and durability because it has a constant resistance until all the bubbles contained therein are broken. Therefore, the composite mortar layer 102 of the present invention, in which the insulation is structurally integrated into the POSS nanocomposite, can increase durability while simplifying the structure, and also ensure excellent heat insulation and sound absorption performance.

The finishing mortar mixed with the composite mortar layer 102 serves as a medium in which a sound insulation material and a heat insulating material component are mixed, and at the same time, the finishing mortar is configured to have a bottom layer protection and surface treatment effect.

In the present invention, the functions of a conventional sound insulating material or sound absorbing material, lightweight foam concrete, and finishing mortar are formed as one composite mortar layer. To this end, in addition to mortar containing POSS nanocomposites, vinyl chloride to improve sound insulation, sound absorption, or heat insulation performance , Polymer rubber, iron, melamine foam, expanded polystyrene (EPS), polypropylene (Polypropylene, PP) microfiber fibers, and artificial mineral fibers Use a material with vibration damping and have a surface treatment effect so that it can act as a finishing material. In addition, the floor finishing material is a polymer resin mortar-based finishing material, and polymer particles having excellent bonding strength penetrate deep into the structure surface and the structure to increase strength and increase durability.

As described above, when the high-functional composite mortar layer 102 of the present invention is constructed, it can be constructed in a single-layer structure, which greatly increases the convenience of construction. In addition, a single composite mortar layer can secure sound and sound absorption and heat insulation performance at a time, which is advantageous in terms of economy.

POSS nanocomposite can improve interlayer noise mitigation effect, insulation performance, and compressive strength by mixing with materials having sound insulation, sound absorption, and heat insulation performance, and the finishing mortar has a bottom layer protection and surface treatment effect. It is the construction method of FIG. 6 that proposes a simplified construction method using the above three processes as a single composite mortar layer.

At this time, one of the important things is to determine the thickness of the single mortar in consideration of the installation of the pipe 104. When the composite mortar layer 102 of FIG. 4 is constructed as described above, the compressive strength of the finishing mortar is generally 20 MPa, but the POSS nanocomposite should adjust the compressive strength in consideration of performance. In addition, the size and content of the material added to the composite mortar also need to be adjusted.

According to the present invention, the existing finishing mortar, lightweight foam concrete and sound insulation material are constructed as separate layers to solve the problem that the process is complicated, and the increase in thickness of the layer does not significantly affect the improvement of sound insulation performance and the problem that the insulation layer must be separately provided. It becomes possible. The lightweight foam concrete may be lightweight foam mortar.

In addition, in the present invention, it may be advantageous to construct the piping 104 of the floor mortar by directly pouring urethane foam concrete on the concrete slab. In this case, the urethane foam concrete may be poured with a thickness of 70 to 80 mm, and the thickness of the concrete slab may be constructed with 150 to 180 mm.

On the other hand, when the composite mortar layer 102 is constructed, the thickness may decrease and the rigidity of the floor layer may be reduced. In particular, when it is applied to a wall surface other than the floor, it may be difficult to stably stand due to the decrease in rigidity due to the thickness reduction. have. Hereinafter, a method for compensating for such a decrease in stiffness and maintaining the sound insulation effect of the present invention will be described.

In the case of the composite mortar layer 102 including the POSS nanocomposite according to the present invention, sound insulation, sound absorption, heat insulation, and finish are completed by one layer, and the floor thickness is reduced, so that the floor height can be sufficiently secured. Although there is a point, the need for durability reinforcement and dustproof reinforcement due to the decrease in floor thickness may be raised. To this end, in the present invention, a connection board formed of two or more boards 200 is attached to the concrete slab or the concrete wall 101 (or may be a concrete slab) as shown in FIGS. 8 to 10, but the board 200 ) And the board 200 are connected by separate connectors 110 and 120.

That is, even if the thickness of the board 200 is reduced, if the connection board is constructed in such a way that a plurality of boards 200 whose lengths are divided are connected to each other, the decrease in stiffness due to the decrease in the thickness of the board 200 is significantly reduced This is based on the principle that the flexural strength or buckling strength of the member improves as the longitudinal span of the member decreases.

The board 200 and the board 200 are connected to each other by connecting the two connectors 110 and 120 connected to each board 200 as shown in FIG. 8 connecting the board 200 and the board 200 to each other. To be connected.

As can be seen in FIG. 8, these connectors 110 and 120 are spread out from side to side in a predetermined length direction in the length direction of the board 200, so that the connection between the board 200 and the board 200 is sufficiently wide. Because it is covered with, it is possible to improve the rigidity between the board 200 and the board 200.

More specifically, referring to FIG. 9, a groove 111 is formed in the first connector 110 on the left of the connectors 110 and 120 to form a protrusion 111 formed in the second connector 120 on the other right ( 121) are connected to the grooves 111, the connection ports 110 and 120 are connected to each other.

In addition, the first connector 110 is provided on the first board 200 and the second connector 120 is provided on the second board 200. There may be three or more boards 200 forming one connection board, and the first and second expressions indicate the order of such boards 200, and each board forming the connection board is typically It is made identical to each other.

The first connector 110 and the second connector 120 serve to connect and connect the connection parts of the board 200 and the board 200 while facing each other, and the first connector 110 is a first board 200 ) Extends along the vertical portion (a) of the corner facing the second board 200 and the horizontal portion (b) orthogonally connected to the second board 200 in order to continuously wrap the two sides of the wall and again from the vertical portion (a) It includes a horizontal portion (c) extending along the (101). In the horizontal portion (c), the first connector 110 is fixed by separate fixing means 300 such as the wall 101 and screws. On the other hand, the second connector 120 is formed to surround the surfaces of the second board 200 in contact with the first board 200 and the surfaces connected to the first board 200 among the surfaces of the second board 200 Corresponding to the vertical portion (d) and extending along the horizontal portion (e) connected to the vertical portion (d).

Wherein the vertical portion (a), the horizontal portion (b, c) is configured to be fixed to the corresponding surfaces of the first board 200 so as to continuously wrap the corresponding surfaces of the first board 200, whereas the second The vertical portion d of the board is formed such that its position is slidable along the vertical surface of the second board 200.

Particularly, as shown in FIG. 10, a plurality of fixing protrusions 201 are formed on the surface on which the vertical portion d is formed in the second board 200, and a locking groove 122 engaged with the fixing protrusion 201 is formed. The position of the vertical portion (d) is determined by passing through the vertical portion (d) of the second connector 120 and engaging the fixing protrusion (201) and the locking groove (122) at a desired position. The fixing protrusion 201 is preferably formed in a semi-circular shape as shown in FIG. 9 so that it is smoothly caught in the locking groove 122 and released.

The configuration of the fixing protrusion 201 and the locking groove 122 of the second connector is important because when the first board 200 and the second board 200 are combined, the groove 111 has the protrusion ( 121) can be formed by sliding the sliding surface is inserted, in this case, by adjusting the position of the vertical portion (d) to which the protrusion 121 is connected when the protrusion 121 is inserted into the groove 111, the This is because the pressing force is applied to the groove 111 so that the protrusion 121 in the groove 111 can be fixed while maintaining elasticity. Through this, the combination of the board 200 and the board 200 may be more robust.

The protrusion 121 may be made of an elastic material so that the groove 111 can elastically behave within the protrusion 121, and the first connector 110 is usually made of the same material as the second connector 120. Since it is manufactured, the first connector 110 and the groove 111 are also preferably made of an elastic material.

Meanwhile, as illustrated in FIGS. 9 to 10, when the protrusion 121 is inclined downward toward the groove 111 and inserted, that is, when the groove 111 is formed as a downward slope, the vertical portion d is the protrusion 121 ), the vertical portion (d) is fixed below the neutral state because it is in contact with such a downward slope surface to maintain an elastic coupling with respect to the groove 111, that is, to press the downward slope surface. The locking groove 122 of the vertical portion d is engaged with the lower fixing protrusion 201. FIG. 9 shows that the groove 111 is formed in the downward direction, and shows that the vertical portion d is spaced down by a distance g from the upper edge of the board 200.

The above neutral state means the case where the above g=0.

If the protrusion 111 toward the groove 111 is formed in a structure that is inserted upward, the vertical part (d) is a locking groove (122) of the vertical part (d) to the fixed projection (201) above the neutral state. This can be engaged, but in this case, the protruding portion 121 is likely to escape from the groove 111, and the second connector 120 must go beyond the border of the board 200 to the wall 101. It is difficult to use in general.

The groove 111 may be formed where the vertical portion (d) and the horizontal portion (e) of the second board 200 meet, as can be seen in FIGS. 9 to 10, and the protrusion 121 is the It is formed at the position of the corresponding second connector 12 of the groove 111 formed where the vertical portion (a) and the horizontal portion (b) of the first board 200 meet. The groove 111 is configured to accommodate all the lengths of the protrusion 121 so that the protrusion 121 is slidingly inserted into the groove 111 and seated within the groove 111. The groove 111 is generally'U' shaped and the protrusion may be generally'-' shaped.

The above connection board may be formed on the wall surface 101 of the structure as in FIG. 11. Of course, such a connection board can be installed on the bottom surface 400 of the above structure.

On the other hand, the above connection board can be formed on the composite mortar layer 102 described above, so that it is possible to compensate for the problem of stiffness reduction due to thickness reduction caused by employing the composite mortar layer 102.

The first board 200 and the second board 200 may be formed with a gap u between them as in FIG. 12 without continuously connecting side by side as in FIGS. 9 to 10. This is referred to herein as a superimposed board as a concept compared to the connection board. The reason for using such an overlapping board is that when two or more boards 200 are spaced apart from each other, the wall thickness becomes as thick as the clearance (u), so the transmission path of noise from adjacent rooms is long, which is advantageous for sound insulation. to be. However, if all the interior of the overlapping board is filled with solid cross section, the cost of material increases very much and the problem of cross section increase such as slab occurs due to the increase in the load of the overlapping board. Therefore, the cross section does not have to be a solid cross section. Therefore, it is sufficient if the stiffness can be securely spaced between the board 200 and the board 200 as necessary and the overlapping board of the hollow section can be installed durable.

Therefore, in the present invention, a spacer block 2010 for stably spacing the board 200 and the board 200 is installed between the two boards 200 constituting the overlapping board. Since the separation block 2010 needs to be of a volume sufficient to stably space the space between the board 200 and the board 200, a height much smaller than the board 200 is sufficient and the board 200 due to the volume of the separation block 2010 ) And the board 200 are spaced apart, so a low weight product such as styrofoam or gypsum board material can be used, and it does not need to be a heavy stone or steel material. Meanwhile, a support frame 2100 for supporting the boards 200 and the boards 200 that are spaced apart from each other in order to maintain the boards 200 and the boards 200 in a spaced apart state is durable. Is installed. The support frame 2100 extends up and down in the height direction of the board 200 and at both ends of the web 2101 and the web 2101 extending horizontally with a width equal to the distance between the boards 200. It consists of left and right flanges 2102 extending by a predetermined length in one direction among the length directions on both sides of the board 200, and is composed of'c' shaped steel having a'c' shaped cross section as a whole. In addition, a support plate connected to the left and right flanges 2102 of the'U' shaped steel 2100 extends in the longitudinal direction of the board 200 farther than the left and right flanges 2102 to support the board 200 in the longitudinal direction. 2200 are respectively installed on the board 200.

In addition, the support plate 2200 may be connected to the support frame 2100 by seating on a support plate 2104 that spans a hole 2105 formed in the surface of the left and right flanges 2102.

Therefore, the overlapping board can stably maintain the separation while stably spaced between the two boards 200, and improve the sound insulation performance between the walls by the separation distance.

Meanwhile, a through hole 2103 may be formed in the web 2101 for purposes such as piping.

Therefore, the present invention is comprehensively related to noise reduction between floors, but specifically to noise reduction between walls.

In addition, when such an overlapping board is applied to a floor slab, the above-described'c' section steel 2100 and the support plate 2200 are formed to form a floor soundproof panel floating between the slab which is the proof strength structure and the floor finishing material as shown in FIG. ) Is installed on the slab bottom surface 400. The reason for doing this is to prevent vibration or shock energy from being transmitted to the floor slab as much as possible.

On the other hand, the simple floating floor method that prevents vibration or impact energy from being transmitted to the floor slab is very effective in reducing the light weight impact sound, but it is disadvantageous for the weight impact sound of the low frequency band, while increasing the concrete strength and slab thickness while increasing the stiffness of the slab. The method (hollow (Void) type or rib type slab) has a problem in that it is difficult to expect a large improvement effect on a light-impact sound, and the'c' section steel 2100 and the support plate 2200 according to the present invention have a slab bottom surface ( 400) When installed on the top, the'c' section steel 2100, which acts as a protrusion at regular intervals, can minimize the direct transmission of solid vibration sound to the concrete slab bottom surface 400, thereby achieving a weight impact sound reduction effect. In addition, when the floor finishing material includes an impact absorbing layer such as foamed PVC, foamed PE, foamed PP, or foamed urethane, it is possible to prevent even light impact sound.

After all, in the present invention, as an invention devised to solve the above-mentioned problems of the prior art, it provides a design method of a multi-family house capable of suppressing floor noise and vibration that can improve both the light weight and the impact sound effects compared to the prior art. It becomes possible.

Of course, it is natural that the concrete slab 101 of the present invention may be a wall, beam, or pillar of a building.

In addition, although not shown in the drawings, the concrete slab 101 may be provided with reinforcing bars to reinforce the tensile strength of the concrete.

Depending on the installation position of the connection board or overlapping board according to the present invention, that is, whether it is installed on a wall, a slab, or both on a wall and a slab, the effect of reducing the inter-layer noise is experimentally as follows.

Hereinafter, the procedure for evaluating the floor impact sound will be described. The floor impact sound is divided into a heavy impact sound and a light impact sound.

The floor impact sound is divided into a heavy weight floor impact sound and a light weight floor impact sound.

In evaluating the floor impact sound, the inverse A characteristic effect is shown below.

What has been described above for the interlayer noise suppression can of course also be applied to the interroom noise suppression, unless otherwise limited, and vice versa.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: reinforced concrete floor layer
101: concrete slab or wall
102: composite mortar layer
103: floor finishing material
110, 120: connector
111: Groove
121: protrusion
122: jam groove
200: board
201: fixed projection
300: fixing means
400: bottom surface
2100: support frame
2101: support frame web
2102: Support frame flange
2103: through
2104: base plate
2105: hole
2200: support plate

Claims (14)

Steps for installing concrete walls,
The step of installing a composite mortar layer with a high-functional mortar using a hybrid epoxy resin on the concrete wall,
Installing a first board and a second board attached to the concrete wall; and
And installing a first connector and a second connector connecting the first board and the second board,
The first connector surrounds the vertical and horizontal surfaces adjacent to each other of the first board,
The second connector surrounds the horizontal and vertical surfaces of the second board facing the vertical and horizontal surfaces of the first board,
The first connector is fixed to the wall by a fixing means,
A groove is formed in the first connector, and a protrusion formed in engagement with the groove is formed in the second connector,
The high-functional mortar is composed of a mixture of POSS nanocomposite, epoxy resin, curing agent and filler prepared by hydrocondensation reaction of a silane compound, a hybrid epoxy resin prepared by mixing cement mortar and water,
The silane compound is a mercaptopropyl polyhedral oligomeric silsesquioxane (POSS-SH) prepared using (3-mercaptopropyl)trimethoxysilane. ego,
The curing agent is selected from EDA (ethylene diamine), polyamide, modified aliphatic amine, and poly amine as a curing agent to modify the epoxy into a thermosetting material, but the target property of the epoxy after curing, the workability (workability) decreases due to curing, Add the curing accelerator and diluent in consideration of the target curing speed.
The curing accelerator is selected from phenol, cresol, nonylphenol, bisphenol-A, alkylphenol, tertiary amine when the curing agent is a modified aliphatic amine or polyamine,
Silica is used as the filler, but calcium carbonate, a rosin derivative having an acid value of 300 mgKOH/g or less, and an imidazole compound are mixed with the silica. Floor noise reduction method. According to claim 1,
The protrusion is slidably connected to the groove,
The first connector and the second connector is a method for reducing floor noise in a multi-family house using a high-functional mortar containing POSS nanocomposite, characterized in that it is made of an elastic material. According to claim 2,
An inclined surface into which the protrusion is inserted is formed in the groove,
The inclined surface is formed so as to be inserted into the groove as the protrusion slides down, a method for reducing floor noise in a multi-family house using a high-functional mortar comprising POSS nanocomposites. According to claim 1,
A plurality of fixing protrusions are formed at regular intervals on the vertical surface of the second board,
A plurality of locking grooves having a size corresponding to the fixing protrusions are formed on the vertical surface of the second connector corresponding to the vertical surface of the second board, and the fixing protrusions are connected to the locking grooves corresponding to the required fixing height of the second connector. A method for reducing inter-floor noise in a multi-family house using a high-functional mortar containing POSS nanocomposite, characterized in that it can be fitted. According to claim 1,
A plurality of fixing protrusions are formed at regular intervals on the vertical surface of the second board,
A plurality of locking grooves having a size corresponding to the fixing protrusions are formed on the vertical surface of the second connector corresponding to the vertical surface of the second board, and the fixing protrusions are connected to the locking grooves corresponding to the required fixing height of the second connector. Can be fitted,
The fixing protrusion and the engaging groove coupled to the fixing protrusion are located below the center point in the height direction of the second board and the second connector, respectively, of a multi-functional mortar housing comprising a POSS nanocomposite. Floor noise reduction method. Steps for installing concrete walls,
The step of installing a composite mortar layer with a high-functional mortar using a hybrid epoxy resin on the concrete wall,
Installing a first board and a second board attached to the concrete wall,
Constructing a floor finishing material on the composite mortar layer, and
And installing a first connector and a second connector connecting the first board and the second board,
The first connector surrounds the vertical and horizontal surfaces adjacent to each other of the first board,
The second connector surrounds the horizontal and vertical surfaces of the second board facing the vertical and horizontal surfaces of the first board,
The first connector is fixed to the wall by a fixing means,
A groove is formed in the first connector, and a protrusion formed in engagement with the groove is formed in the second connector,
The high-functional mortar is composed of a mixture of POSS nanocomposite, epoxy resin, curing agent and filler prepared by hydrocondensation reaction of a silane compound, a hybrid epoxy resin prepared by mixing cement mortar and water,
The silane compound is a mercaptopropyl polyhedral oligomeric silsesquioxane (POSS-SH) prepared using (3-mercaptopropyl)trimethoxysilane. ego,
The curing agent is selected from EDA (ethylene diamine), polyamide, modified aliphatic amine, and poly amine as a curing agent for curing the epoxy and modified with a thermosetting material, but the target property of the epoxy after curing, deterioration of workability (workability) due to curing, Add the curing accelerator and diluent in consideration of the target curing speed.
The curing accelerator is selected from phenol, cresol, nonylphenol, bisphenol-A, alkylphenol, tertiary amine when the curing agent is a modified aliphatic amine or polyamine,
Silica is used as the filler, but calcium carbonate, a rosin derivative having an acid value of 300 mgKOH/g or less, and an imidazole compound are mixed with the silica, of a multi-functional mortar house comprising a POSS nanocomposite. Floor noise reduction method. The method of claim 6,
The protrusion is slidably connected to the groove,
The first connector and the second connector is a method for reducing floor noise in a multi-family house using a high-functional mortar containing POSS nanocomposite, characterized in that it is made of an elastic material. The method of claim 7,
An inclined surface into which the protrusion is inserted is formed in the groove,
The inclined surface is formed so as to be inserted into the groove as the protrusion slides down, a method for reducing floor noise in a multi-family house using a high-functional mortar comprising POSS nanocomposites. The method of claim 1 or 6,
The component of the epoxy resin is a bisphenol A diglycidyl ether (Bisphenol A diglycidyl ether, DGEBA) characterized in that the interlayer noise reduction method of a multi-family house using a high-functional mortar containing POSS nanocomposite. The method of claim 1 or 6,
The curing agent is an EDA (ethylene diamine), characterized in that the interlayer noise reduction method of a multi-family house using a high-functional mortar containing POSS nanocomposite. The method of claim 1 or 6,
The POSS nanocomposite is characterized in that it can be used in combination with a reinforcing material comprising any one or more of Ethylene-Vinyl Acetate Copolymer (EVA), Expanded Polystyrene (EPS), and Polypropylene (PP) microfibers. Method for reducing floor noise in multi-family houses using high-functional mortar containing POSS nanocomposite. The method of claim 1 or 6,
The composite mortar layer is additionally vinyl chloride, polymer rubber, iron, melamine foam, expanded polystyrene (EPS), polypropylene (Polypropylene) to improve sound insulation, sound absorption, or heat insulation performance in a high-functional mortar using a hybrid epoxy resin. , PP) A method for reducing inter-floor noise in a multi-family house using a high-functional mortar containing POSS nanocomposite, characterized in that it is composed of a material containing at least one of ultra-fine fiber and artificial mineral fiber. The method of claim 1 or 6,
Noise reduction method for multi-housing apartments using high-functional mortar containing POSS nanocomposites, characterized in that noise can be absorbed through the POSS nanocomposites in which micropores are formed. Use of a high-functional mortar using POSS nanocomposite, characterized in that it can be constructed for the construction, repair, and reinforcement of a house, apartment, building, road or tunnel using the high-functional mortar of claim 1 or 6. Method for reducing floor noise in multi-family house.

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