KR100875598B1 - Impact sound reduction device and floating material manufacturing method using floating floor structure and floor structure using the same. - Google Patents

Abstract

The present invention relates to a floor structure for reducing the floor impact sound of a multi-family apartment, and more particularly, a sound insulation layer, a sound absorbing vibration layer, a heat storage layer, and a finish mortar layer are sequentially stacked on a floor slab. It is an object of the present invention to provide a noise reduction device configured to reduce various kinds of noises ranging from a high frequency region to a low frequency region.

To this end, the present invention is provided with a columnar support column formed of an elastic material on the plate-shaped anti-vibration pad is formed to protrude a plurality of rows vertically and horizontally at predetermined intervals so as to separate the integral anti-vibration pad on the floor slab to form another double bottom layer After constructing a resonator type sound absorber system by embedding a hollow layer between the dustproof pad and the slab and the respective rooms, the fiber pad is laid on the dustproof pad with a predetermined thickness, and the heating pipe is installed thereon. Apply the floor filling material made of yellow clay to cover the heating tube evenly, and then attach the insulating material around the wall to match the floor surface to prevent vibration transmitted to the wall, and then install the finishing mortar layer. It is made up of.

The impact sound incident on the floor structure is dramatically attenuated while passing through the structures of different media.

Floor filling material, dustproof pad, columnar support, hollow layer, vent pipe, vent opening part, resonator type sound absorber neck, molding frame, screw extrusion method

Description

Impact sound reduction device and floating material manufacturing method using floating floor structure and floor structure using the same. {Omitted}

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

2 is a detailed view of a resonator type sound absorber neck according to the present invention.

3 is a cross-sectional view of the dustproof pad.

4 is a shape diagram of the floor filler (material constituting the heat storage layer).

5 is a manufacturing process diagram of the floor filling material.

6 is a cross-sectional view showing a cross-sectional change aspect.

7 is a graph showing attenuation according to the cross-sectional change of the plate.

8 is a cross-sectional view illustrating an example of inserting an elastic material.

<Description of the code | symbol about the principal part of drawing>

10: hollow layer 70: wall insulation

20: Dustproof pad 80: Finished mortar layer

20-1: columnar support 90: floor finish

20-2: fiber solid plate (fiber reinforced plate) 100: bottom slab

20-3: Styrofoam panel 110: Vertical conveyor

20-4: Insulation pad circumferential insulation 111: Screw-type conveyor

30: resonator type sound absorber neck 112: pressure screw

30-1: hollow layer opening (vent surface facing hollow layer) 120: stirrer

30-2: Ventilation pipe 121: Data input switchgear

30-3: Indoor opening part (vent pipe surface located in the room) 130: Molding machine

30-4: Ventilation opening 131: Data input switchgear

30-5: Interior opening part cover 140: Molding mold

40: fiber pad layer 150: cutter

50: heating tube 200: wall

60: heat storage layer

The present invention is to reduce the floor impact sound of a multi-unit house, more specifically, a hollow layer consisting of a resonator-type sound absorber structure, a vibration pad for sound insulation, a fiber pad layer for sound insulation, heat storage layer for storing and radiating heat and The present invention relates to a construction method for reducing a floor impact sound having a structure in which a floating floor is placed on a floating floor (dustproof pad layer) in which a finishing mortar layer is sequentially stacked, and a method for manufacturing a dustproof pad and a floor filling material.

In general, the conventional method for reducing the noise between floors of apartment houses is to mandate the construction of slab thickness from 150mm to 200mm to increase the transmission loss, insert the cushioning material inside the floor structure (ondol floor), and change the interior finishing materials. Method, sound-absorbing ceiling structure and the like, but the interior finishing material is not suitable for Korean ondol culture, sound-absorbing ceiling is not realistic due to the limitations of the structure and height in the ceiling.

As described above, in order to reduce the noise between floors of multi-unit houses, various products developed by many construction companies, noise and vibration companies, and individuals have been released and constructed. As a result, lightweight impact sounds have achieved some results, but heavy impact sounds are still a social problem. In particular, as many apartments are supplied due to the efficiency of land use and easy supply of large quantities, conflict between the upper and lower floors due to the impact of inter-floor noise is a serious social problem, and the light impact sound is 58dB and the weight shock sound is 50dB or less. KBS Korea Broadcasting (July 5/2006 / August 16, 2006) also raised the severity of the noise between floors through two 60 minute programs.

As a conventional technology for solving such interlayer noise problem, as in the Republic of Korea Patent Publication No. 10-2006-0003302, the central part of the ondol layer is completely floated to form a pure space and the location of the impact vibration source is inaccessible. In other words, a small number of supports are placed around the ondol floor where furniture or household goods are placed, and as much as possible, the support is installed away from the impact source so that the noise of the upper floor cannot be lowered to the lower floor. It is proposed to install a compression tube or beam to support the form to prevent heat shock absorbers, lightweight foam concrete hot water pipes, and protective mortar layers from being transmitted to the lower layer to prevent the impact sound from being applied to the lower layer (prior art 1). And also concrete buildings such as Korean Patent Publication No. 10-0630335 A floor is installed between each slab and the bubble concrete layer to form an air layer to block noise, and a dustproof protrusion that suppresses vibration.The floating floor is installed to support the mortar layer on a flat surface and float on the slab at a certain height. An interlayer noise reduction structure (prior art 2) consisting of structural layers has been proposed.

However, among the conventionally proposed techniques, the technique disclosed in the prior art 1 may have the effect of reducing the light impact sound, but due to the thermal insulation sound-absorbing material, lightweight foam concrete, hot water pipes, mortar layer, the addition of formwork, beam, etc. If there is no economical effect due to the additional burden of material and labor costs, and if the space is formed with the floor floating, the amplification phenomenon occurs when the incident sound and the natural vibration of the top plate coincide, and the resonance sound loss occurs in the low range, and most of the impact sound is slab. Will be passed downstairs.

In addition, as in the prior art 2, it is buried between the slab and the bubble concrete layer to form an air layer and the dustproof projections support the plate to maintain the floating state, but the support projection is low and the slab floor is made in the uneven construction site conditions. It is not able to fulfill its functions, and the floor from the foam concrete layer to the upper finish mortar layer is not vibrated with the wall so that the floor impact sound cannot block the impact sound transmitted through the wall to the lower floor.

Accordingly, an object of the present invention is to provide a method for manufacturing and constructing a soundproofing and dustproof structure that can dramatically reduce the impact sound transmitted to a lower floor in a multi-family house.

In order to achieve the above object, the present invention prevents the phenomenon of vibration amplification due to resonance phenomenon in the hollow layer of the floating bottom structure, and forms the hollow layer in the form of a resonator-type sound absorber for excellent vibration blocking to low frequency band. To provide a construction method that can reduce the noise of the.

Another object of the present invention is to make a floor structure consisting of the independent floating floor by making each one of the dustproof pads by integrating the anti-vibration pads with the insulating material attached to the side circumference of the anti-vibration pads to each other without the construction of the vertical incident sound It is to provide a construction method that can block the planar conduction path.

Another object of the present invention is to form a floating floor layer on the floating floor (dustproof pad layer) by absorbing vertical incident sound and insulating vibration by spreading a fiber pad on the dustproof pad.

It is another object of the present invention to provide a method of manufacturing a floor filling material by laying down the floor filling material to absorb and absorb the impact sound incident from the mortar layer and to maximize the heating efficiency.

In addition, it is intended to provide an insulation material and a construction method for damping the path between the mortar layer and the wall by blocking the path of the floor shock sound to the lower layer by the wall.

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

1 is a cross-sectional view of the floor structure is a dustproof, soundproofing material according to an embodiment of the present invention.

In FIG. 1, the reference numeral 10 is a space formed between the bottom slab 100 and the dustproof pad 20, and the height of the space spaced apart from the bottom slab 100 and the dustproof pad 20 is a columnar support column 20-1. Floating bottom is formed in 20mm, such as the height of the floor can prevent the floor impact sound from being transmitted to the lower floor through the slab 100 as a medium.

However, in the floating-floor structure as described above, when the bottom impact sound, especially the heavy impact sound, is matched (resonance) with the natural frequency of each part while being transmitted to the medium through the mortar layer 80, a large sound is generated. In particular, when the wavelength of the incident sound incident on the hollow layer 10 and the wavelength of the bending wave coincide, the bending motion and amplitude of the bottom slab 100 vibrate to the same magnitude as the amplitude of the incident wave. That is, the resonance performance is remarkably degraded and most of the energy of the incident sound is transmitted to the lower layer through the slab 100.

In order to solve the above problems, the present invention burys a vent pipe communicating with the hollow layer 10 and each room to construct a Helmholz resonator type sound absorber system to maximize the sound absorption in the resonance state. This can be expressed.

A resonator type sound absorber is a sound absorbing structure using resonance of a cavity having a small opening. When sound enters the cavity, air in the neck portion vibrates violently near the resonance frequency. As the vibration increases, sound energy is converted to heat energy by sound viscous friction, and sound absorption is attenuated. In this structure, the sound absorption characteristic has the maximum sound absorption rate in the sound range of the resonance frequency.

The resonance frequency of the resonator type sound absorber can be obtained through the following equation.

In the formula
S denotes the cross-sectional area of the vent pipe 30-2 coupled to the hollow layer opening 30-1 disposed in the hollow layer 10 in FIG. 2, and V denotes the floor slab and dustproof in [FIG. 1]. The space between the pads refers to the hollow layer 10 and L denotes the length of the vent pipe communicating with the hollow layer 30 and the interior in FIG.
[Equation 1]

r² )(㎠) f : resonance frequency S : cross-sectional area of snout (S =

r ² ) (㎠)

V : volume of resonator L : exit length of resonator

C : sound speed

In the above equation, when S (cross-section of the spout) is large, or when L (outlet length of the resonator) and V (volume of the resonator) are small, the resonant frequency f becomes large and decreases when it is opposite.

In the resonator sound absorber structure of the present invention, S is the cross-sectional area of the vent pipe, L is the length of the vent pipe, V is the hollow layer.

2 is a detailed view of a neck portion of a resonator type sound absorber according to an embodiment of the present invention.

In FIG. 2, reference numeral 30-1 is a lower opening of the neck of the resonator type sound absorber of Helmhols and is disposed at a predetermined position forming a 90 ° angle contacting the slab surface 100 and the wall 200 of the hollow layer 10. The sign 30-3 is the upper opening of the neck of the resonator type sound absorber, which is placed side by side on each indoor communication and electrical outlet, and is a stainless steel screen or plastic cover (30-5) after the interior work is finished. ) To finish.

In embedding the neck portion of the resonator type sound absorber, when assembling the building wall mold, the hollow layer 10 of each chamber partitioning the opening 30-1 below the resonator type sound absorber neck 30. The bottom slab 100 is placed at a predetermined position forming a 90 ° angle between the surface of the wall frame and the surface of the opening 30-1 in close contact with the wall frame, and then fixed with a nail. 2) After inserting into the vent pipe insertion opening 30-4 of the opening 30-1, the upper opening 30-3 of the neck is coupled to the vent pipe 30-2 so that anyone can easily fix it to the wall frame by nails. It can be installed, and when the wall frame is dismantled after concrete pouring, only the upper and lower opening faces are exposed to the outside.

The material of the upper and lower openings of the neck of the resonator type sound absorber is a press-molded galvanized iron plate having a thickness of 1.5 mm. The size of the opening is 100 mm wide by 50 mm high and 100 mm high by the upper opening 30-3. The opening 30-1 has a width of 100 mm, a length of 50 mm, and a height of 30 mm, and the vent pipe 30-2 is a flame retardant pipe made of HDPE (Hydesti polyethylene).

3 is a cross-sectional view of the dustproof pad 20 according to the embodiment of the present invention. In FIG. 3, reference numeral 20-1 denotes a columnar support column of the anti-vibration pad 20, and reference numeral 20-2 denotes a fiber solid plate, reference numeral 20-3 denotes a styrofoam panel, and reference numeral 20-4 denotes The dustproof pad 20 is a dustproof pad 20 formed by combining a vibration damping insulating material 20-4 attached to the circumference of the side surface.

The sign 20-3 of FIG. 3 is a styrofoam panel 20-3 having a width of 900mm and a length of 900mm and a thickness of 25mm, and should be selected as a higher product than the KS top grade No. 1 to prevent the best insulation and sound insulation effect and the depression of the floor after construction. The quality is shown in Table 1 below.

TABLE 1

Reference numeral 20-2 of FIG. 3 denotes a fiber solidified plate 20-2 attached to the styrofoam panel 20-3, and has a high density so that the columnar support column can support the anti-vibration pad 20 in the load pressure of the upper layer. Fiber reinforcement plate of dustproof pad for load resistance maintenance and sound insulation.

The fiber solidified plate 20-2 is sprayed onto the styrofoam panel 20-3 by spraying a solidified mixture mixed with 100 WT% of a water-soluble epoxy and 50 WT% of a water-soluble curing agent, and then attaching a fiber board having the same size to the fiber mixed plate. Repeat the process of impregnating and impregnating the fiber board with a roller so as to infiltrate evenly to the fiber board until it reaches a predetermined thickness. The elastic elastic columnar support 20-1 made of rubber material for supporting and cushioning the bottom impact sound is vertically and horizontally disposed at predetermined intervals to be adhesively fixed.

Attaching the insulating material 20-4 around the side surface of the anti-vibration pad 20 forms an independent floor of the anti-vibration pad 20 from the vibration source to block a path in which the plane vibration of the vertically impacted floor impact sound is conducted. Each of the independent dustproof pads 20 has attenuation of vibration due to reflection due to mismatch of impedance due to a sudden change in cross-sectional area with the top plate.

FIG. 6 illustrates a sudden cross-sectional change of the structure between the anti-vibration pad 20 and the upper plate, and FIG. 7 is a graph illustrating attenuation according to the cross-sectional change of the plate. In the case of longitudinal wave, the attenuation value R (dB) according to the change of plate section can be obtained by the following equation.
In the figure, T1 and T2 represent, in which T1 represents one of the dustproof pads 20 laid on the slab, and T2 is the floor finishing material 90, the mortar layer 80, and the heat storage layer 60. The floor layer comprising a single plate is shown.

[Equation 2]

R = 20log ( m- ^(1/2) × m ^(1/2) / 2) dB

8 is a cross-sectional view showing a portion of the construction of the anti-vibration pad 20 with an insulating material in order to explain an elastic material insertion example. In Figure 8 ( t ) is the thickness of the plate ( L ) is a reference sign indicating the length (thickness) of the insulating material inserted.

The insulating material 20-4 attached to the side surface of the dustproof pad 20 has a vertical surface longer than the plane subjected to the load pressure of the upper layer to the dustproof pad 20, so that the insulating material 20-4 is not consolidated. Excellent insulation effect because there is no decrease in elastic modulus due to compression. The vibration damping value R (dB) can be obtained from the following equation.

[Equation 3]

For denominations:

For bend wave:

Where E ₁ is the Young's modulus of the structure, E ₂ is the Young's modulus of the elastic material, and λ L ₁ is the wavelength of the longitudinal wave in the structure (= CL / f ).

The anti-vibration pad 20 configured as described above is excellent in insulation material with thermal conductivity of 0.027 Kcal / mhr ℃ as well as sound insulation, so there is no need for a separate insulation work or foam concrete placing work, so it is economical by shortening the construction period and reducing material costs. Can achieve results.

In addition, the present invention is laminated on a layer of polyester fiber pad 40 to a predetermined thickness on the dust-proof pad 20, folded up to a predetermined height of the wall surface at a 90-degree angle at the point where the dust-proof pad 20 and the wall 200 contact. Insulated between the heat storage layer 60 and the wall by zooming, the heat storage layer 60 and the mortar layer 80 are composed of a floor structure floating on the floating floor (dustproof pad layer), and the floated floor (heat storage layer, mortar layer) The floating bottom sphere and the flexural rigid double system are formed to attenuate the floor impact sound, and the fiber pad 40 is consolidated by the load pressure of the heat storage layer 60 and the mortar layer without increasing the thickness, thereby naturally increasing the density and the flow resistance. As the frictional resistance is increased, the sound absorption rate of the effect such as increasing the thickness can be obtained.

In addition, when looking at the sound absorbing structure of the fiber pad 40, the porous fiber pad 40 vibrates the air in a myriad of fine pores, or a part of the sound energy is converted into thermal energy due to friction and viscous resistance, thereby absorbing sound attenuation. will be.

In addition, the fiber pad 40 prevents the styrofoam panel 20-3 from being damaged due to the floor filling materials 60-a, 60-b, 60-c, and 60-d shown in FIG. 4 and prevents the styrofoam panel ( 20-3) can increase the load resistance and durability.

A cylindrical shape having the same diameter and height as the bottom surface and the top surface, which is made of a predetermined size (diameter in the case of spheres, width, length, height: 5 mm to 8 mm in the case of spherical shape) as the material shown in FIG. -a), evenly spread the heating tube with different filling materials of different shapes and sizes, such as hexagonal mold (60-b), gear type (60-c), spherical shape (60-d), etc. The heat storage layer 60 is constituted.

The heat storage layer 60 is the sound layer incident from the mortar layer 80 is scattered reflection in the surface of the heat storage layer 60 that is in contact with the medium having a different sound and acoustic properties, the impact sound is attenuated, and different objects Naturally entangled sound is not only air vibration between the objects, but also objects with different masses cause different vibrations, which convert sound energy into thermal energy due to friction and viscous resistance to absorb and decay. In addition, the heat storage layer 60 is composed of a non-plate material, it can exhibit a good sound absorption and damping function by blocking the plane vibration path of the vertically incident vibration in the mortar layer (80).

In addition, the heat storage layer 60 is composed of floor-filling materials (60-a, 60-b, 60-c, 60-d) made of eco-friendly ocher material to emit far-infrared rays beneficial to the human body by heat during heating operation By improving metabolism and dehumidifying and deodorizing, it is possible to reduce the heating cost by radiating heat for a long time even after the heating operation is stopped due to the improvement of the residential environment and the heat storage effect due to the porosity of ocher.

The insulating material 70 is attached to the periphery of the wall 200 and the door frame by attaching to the lower fiber pad 40 of the vertical wall surface 200 contacting the surface of the finishing mortar layer 80 to be constructed on the heat storage layer 60. Separation of the wall surface 200 in contact with the mortar layer 80 to prevent the floor impact sound from being conducted to the wall 200, the finishing mortar layer 80 and the heat storage layer 60 is floating floor (vibration pad) layer It is designed to suppress the conduction of impact sound by constructing a floating structure on the top. The wall insulation material 70 has a thickness of 7 mm to 10 mm in thickness and a width of the mortar layer 80 in the form of a roll tape of a soft elastic material. In addition, the surface to be treated with the mortar layer 80 is formed to have a concave-convex portion to ensure good bonding with the finish mortar layer 80 to prevent the phenomenon that cracks (cracks) may occur at the joint after construction.

Finishing the ondol layer with ocher or cement mortar on the heat storage layer.

5 shows a manufacturing process of the floor fillers 60-a, 60-b, 60-c, 60-d. The collected ocher is dried at room temperature, and then put into a vibrating screen to separate components such as gravel, and the selected ocher is put into a grinder to powder the ocher powdered to 150 mesh or less by a vertical feeder (110). The dough was transferred to the (120) to adjust the moisture content of the ocher powder to 25 %% to 27% to form a stirring and kneading, and the dough transferred to the molding machine 130 through a screw-type feeder (111) The ocher of the form is a continuous production is made by repeating the process of cutting to a predetermined size by a cutter provided on the discharge port side is formed by passing through the mold 140 by the pressure screw 112. The product produced through the above process is packaged and shipped in a predetermined weight unit through a drying step. Characteristic of the product is purity 100 without adding chemicals or minerals such as thickener, hardener, waterproofing cement, stone, sand and lime. It is an environmentally friendly product made of% ocher powder.

The characteristic of the process is that one molding die 140 is provided with different shapes to produce a plurality of products at the same time to omit a separate process of mixing the product at the same ratio later.
The different shape is provided in one mold to produce products of various shapes at the same time, in one mold is a reference plate (60-a, 60-) of the steel plate having a thickness of about 15mm b, 60-c) and the like, each of which is formed in a mold (140) in which one steel plate (molding die) has different shapes, and is formed by screw extrusion rather than press molding. By cutting the product continuously extruded through the hole to a predetermined length by the cutter 150, it is possible to produce various types of floor filling material in one molding die 140 at the same time.

As will be apparent from the above description, in the floor structure for reducing the floor impact sound of the present invention, a resonator type sound absorber structure is formed in the hollow layer 10 to express a useful function, in particular, to reduce the weight impact sound, despite many efforts. And it is a very useful invention that can solve the interlayer noise problem due to the heavy impact sound that did not achieve a clear result.

In addition, the present invention is attached to the insulating material 20-4 around the side of the anti-vibration pad 20 to attenuate and block the impact sound by blocking the horizontal conduction path propagated to the adjacent surface of the vertical impact sound is incident, the insulation around the side The anti-vibration pad 20 with a band is composed of individual independent floors insulated from adjacent surfaces, so that a sudden cross-sectional area change with the top plate causes vibration to be attenuated due to reflection due to impedance mismatch, and elasticity of the styrofoam. Various sound insulation methods, such as absorbing vibrations and promoting sound insulation with the airtightness of styrofoam particles, are useful inventions in which one plate is integrated.

In addition, the anti-vibration pad 20 is made of a heat insulating material that exhibits excellent heat insulating properties, so that a separate heat insulation work is omitted, thereby achieving economical results by reducing material costs and construction costs due to shortening of air.

In addition, the present invention constitutes a heat storage layer (60) consisting of the floor-filling material (60-a, 60-b, 60-c, 60-d) of different shapes and sizes to reflect, absorb, attenuate the floor impact sound In addition, the economic effect that can reduce the heating cost by radiating heat even after stopping the heating operation due to the heat storage effect due to the porosity of the ocher to reduce the heating cost and also the present invention is the main component of 100% pure loess By constituting the heat storage layer 60 as a floor filling material manufactured in this way, the filling material emits far-infrared rays, which are beneficial to the human body by heat, thereby facilitating metabolic action and exhibiting effects such as dehumidification and deodorization, thus keeping the living environment more comfortable. It was intended to be.

Claims (6)

In the floor structure in which the hollow layer 10 is formed under the floating bottom layer by forming another floating bottom layer spaced above the slab of the building, the hollow layer 10 is the air layer behind the resonator type sound absorber 30 and the hollow layer 10 ) And a vent pipe (30-2) in communication with each room, the impact sound reduction device, characterized in that the resonator-type sound absorber (30-2) to form a resonator-type sound absorber (30). The structure of the resonator type sound absorber 30 which communicates the hollow layer with the inside of a room is a box shape with one side open, and the upper and lower boxes press-molded a galvanized iron plate having a thickness of 1.5 mm. It is embedded in the wall in combination with the flame retardant pipe made of polyethylene material, and the indoor opening side is arranged side by side of each indoor communication and electrical outlet, but the position can be changed according to the indoor structure and the opening side box according to the indoor area. Impact noise reduction device characterized in that the size and the diameter of the coupling pipe can be adjusted or one or more can be expanded at any position. Anti-vibration pads with independent plate-shaped features are 25mm thick, density 0.035kg / ㎠, thermal conductivity 0.027㎉ / mhr ℃, compressive strength 2.0 or more kg / ㎠, flexural strength 4.0 or less kg / ㎠ fiber attached to styrofoam panel A cylindrical support column formed of an elastic material on a solid plate is formed by projecting a plurality of rows horizontally and horizontally at predetermined intervals so that one pad is constructed in an independent plate shape by attaching an insulating material having a thickness of 7 mm around the side surface of the integral dustproof pad. Impact sound reduction device having a. delete In order to reduce the floor impact sound of the multi-family house, the ventilating structure communicating with the hollow layer 10 and the room is buried in the laminated floor structure on the floor slab on the hollow floor and the floor slab. Heat storage consisting of a dustproof pad layer constituting another floating floor spaced apart, a fiber pad insulation layer constituting a floor floated on the dustproof pad layer, a heating tube piped on the fiber pad layer, and various types of floor filling materials mainly composed of ocher Layer, a conductive barrier material is attached to the lower periphery of the vertical wall surface in contact with the surface of the bottom surface to separate the wall surface in contact with the bottom surface, impact sound reduction floor structure consisting of a laminated laminated mortar layer sequentially. The heat storage layer of claim 5, wherein the heat storage layer is composed of various types of floor-filling materials, including cylindrical, hexagonal, gear, and ball, each of which is mainly composed of ocher. Impact sound reduction floor structure, characterized in that the layer is configured so that the effect can be expressed at the same time.

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