KR102415054B1 - Inorganic composite extruded concrete sound insulation panel and its manufacturing method - Google Patents

Abstract

The present invention relates to a panel for a soundproof wall and a manufacturing method therefor wherein, by discharging the air inside an extruder to manufacture the panel, enable a panel without bubbles and air layers inside a panel to be manufactured, enable not only to improve a strength of the panel, but also enable a plurality of grooves for sound insulation to be formed at regular intervals on one surface, and enable to have a soundproofing function when installed on an indoor wall body or installed for use as a partition specifically, enable to be configured not only for sound insulation function, but also for vibration-proof function when installed as a soundproof wall of a road. The manufacturing method comprises: a mixing step; an extrusion molding step; a transfer step; a water pressure cutting step; a loading step; a first curing step; a second curing step; a cutting step; and a processing step.

Description

Inorganic composite extruded concrete sound insulation panel and its manufacturing method

The present invention relates to an inorganic composite extruded concrete sound insulation panel and a method for manufacturing the same, and more particularly, by discharging air inside the extruder to manufacture the panel, it is possible to manufacture a panel without air bubbles and air layers inside the panel, Not only can the strength of the panel be improved, but a plurality of sound-insulating grooves are formed at regular intervals on one surface, so it has a soundproofing function when installed on an indoor wall or for a partition, especially when installed as a soundproof wall of a road , It relates to an inorganic composite extruded concrete sound insulation panel having a vibration-proof function as well as a sound insulation function, and a method for manufacturing the same.

With the expansion of social infrastructure (roads, railroads, airports) along with the diversification of transportation means and the increase in traffic volume due to industrial development, people living near roads, airports, railways, schools, apartments, etc. They are suffering greatly from the noise of the city dwellers, and this is one of the biggest grievances for city dwellers living in modern life, and in the end, it is becoming a factor in various civil complaints.

Therefore, not only developed countries but also many countries have suggested noise standards below a certain level in residential areas or specific areas when designing social infrastructure such as roads, and environmental ministries in Korea have also prepared these standards.

The soundproof wall mainly used in the prior art mainly uses an aluminum panel, and in most cases, holes are formed at regular intervals or a sound-absorbing material such as glass fiber or asbestos is filled.

However, these sound barriers have disadvantages that are harmful to the human body because aluminum is a metallic material, which may be inconsistent with nature or give a feeling of stiffness, and the sound-absorbing material filled therein is often a carcinogen.

That is, the conventional soundproof wall has a structure in which a plurality of posts are installed at equal intervals in a state perpendicular to the ground, and a sound-absorbing plate with a sound-absorbing material is inserted between the posts from the upper part and sequentially stacked.

In the case of exchanging or removing the sound-absorbing plate laminated on the lower or central part of the conventional sound barrier, all of the sound-absorbing plate laminated on the upper part must be removed, so that the working time is delayed.

In addition, since a plurality of sound-absorbing holes are formed on the surface of the sound-absorbing plate formed in the form of a flat plate, there is a problem such as obstructing the scenery of the road.

In consideration of this point, a sound-absorbing panel for a road sound-absorbing wall and a sound-absorbing wall using the sound-absorbing panel have been applied for in Patent Application No. 10-2008-0128960.

Looking at the above, the conventional sound-absorbing panel for a sound-absorbing wall for a road generally includes a frame constituting a circumferential surface, installed on both sides of the frame, and a support piece having a fixing hole formed therein, and a plurality of concave portions and protrusions sequentially formed in succession. A plurality of sound-absorbing holes are formed through the surface, and a plurality of sound-absorbing grooves or a plurality of sound-absorbing protrusions are formed between the sound-absorbing holes, and the sound-absorbing cell includes a concave portion and a protruding portion each having a rectangular shape and a concave portion. and the protrusion is configured to be disposed and installed in the frame continuously adjacent to each other having an arc shape.

However, in the conventional sound-absorbing panel for a sound-absorbing wall for a road sound barrier configured as described above, a frame is provided to form a circumferential surface as described above, and support pieces are installed on both sides of the frame, so that the frame and the support piece are rusted over time. There is a disadvantage that may occur, and the sound-absorbing panel has a disadvantage in that it takes too much time to make a sound-absorbing panel because it is necessary to install a sound-absorbing cell in the frame.

Patent Application No. 10-2008-0128960, filed; December 18, 2008

Accordingly, the present invention has been devised to solve the above problems, and by manufacturing the panel by discharging the air inside the extruder, it is possible to manufacture a panel without air bubbles and air layers inside the panel, thereby improving the strength of the panel. Not only can it be possible, but a plurality of sound-insulating grooves are formed at regular intervals on one surface, and thus have a sound-insulating function when installed on an indoor wall or for a partition. An object of the present invention is to provide an inorganic composite extruded concrete sound insulation panel having a function and a method for manufacturing the same.

And, another object of the present invention, devised to solve the above-mentioned problems, is to use waste fibers classified as industrial waste and incinerated in total, so that you can enjoy energy wastage, and also generate pollution. it is in

Other objects of the present invention will become apparent as the technology progresses.

The present invention for achieving the above object is a method for manufacturing an inorganic composite extruded concrete sound insulation panel, comprising cement, silica powder, iron oxide, thickener, pulp fiber, artificial fiber, waste fiber, water reducing agent and water. A mixing step (S110) of injecting and mixing the composition into a mixer, and an extrusion molding step of vacuum extruding the mixture mixed by the mixing step (S110) into an extruder through an extruder through which internal air is discharged by a vacuum machine ( S120) and the conveying step (S130) of transferring the extruded body continuously discharged after being extruded by the extrusion molding step (S120) through the conveying unit installed in front of the discharge unit of the extruder without being cut or crushed (S130), and the conveying step A hydraulic cutting step (S140) of hydraulically cutting the extruded body transferred by (S130), and a loading step of loading the panel cut body cut by the hydraulic cutting step (S140) on a pallet for curing (S150) And, by the loading step (S150), the first curing step (S160) of putting the pallet loaded with the panel cut body into the curing room to be cured with steam, and the first curing step (S160), curing with steam The second curing step (S170) of putting the cured panel curing product into a high-temperature and high-pressure curing room to cure it at high temperature and high pressure, and cutting the panel curing product cured by the second curing step (S170) to meet product specifications. and a water repellent treatment step (S190) of applying an oil-based paint to prevent moisture from penetrating into the standard product for a panel cut by the cutting step (S180).

In addition, another present invention for achieving the above object is a sound insulation panel manufactured by a method for manufacturing an inorganic composite extruded concrete sound insulation panel, which is formed in a rectangular plate shape having a predetermined thickness, and refracts noise on the upper surface A plurality of recesses 210 for sound insulation are formed in the longitudinal direction at regular intervals so that the In addition, it is characterized in that the coupling protrusion 230 and the coupling groove 240 are further formed in the longitudinal direction on one side and the other side to be coupled with another adjacent sound insulating panel.

As described above, according to the inorganic composite extruded concrete sound insulation panel and the method for manufacturing the same according to the present invention, the panel is manufactured by discharging air inside the extruder to manufacture a panel without air bubbles and air layers inside the panel, Not only can the strength of the panel be improved, but a plurality of sound-insulating grooves are formed at regular intervals on one surface, so it has a soundproofing function when installed on an indoor wall or for a partition, especially when installed as a soundproof wall of a road , it has the effect of having a vibration-proof function as well as a sound-insulating function.

1 is a flowchart for explaining a method of manufacturing an inorganic composite extruded concrete sound insulation panel according to the present invention.
2 is a photographic view showing an extruder and a transfer unit according to the manufacture of the inorganic composite extruded concrete sound insulation panel according to the present invention.
3 is a perspective view showing an inorganic composite extruded concrete sound insulation panel according to another present invention.

Hereinafter, an example of an inorganic composite extruded concrete sound insulation panel and a method for manufacturing the same according to the present invention will be described in detail.

First, it should be noted that in the drawings, the same components or parts are denoted by the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the gist of the present invention.

First, the method for manufacturing an inorganic composite extruded concrete sound insulation panel according to the present invention comprises a composition consisting of cement, silica powder, iron oxide, thickener, pulp fiber, artificial fiber, waste fiber, water reducing agent and water in a mixer. A mixing step (S110) of input and mixing, and an extrusion molding step (S120) of vacuum extruding the mixture mixed by the mixing step (S110) into an extruded body through an extruder through which internal air is discharged by a vacuum machine; In the conveying step (S130) of transferring the extruded product continuously discharged after being extruded by the extrusion molding step (S120) through the conveying unit installed in front of the discharge unit of the extruder without being cut or crushed (S130), and in the conveying step (S130) A hydraulic cutting step (S140) of hydraulically cutting the extruded body transported by The first curing step (S160) of putting the pallet loaded with the panel cut body into the curing room and curing with steam (S160), and curing for the panel cured with steam by the first curing step (S160) by step (S150) The second curing step (S170) of putting the product into a high-temperature and high-pressure curing room to cure it at high temperature and high pressure, and the cutting step of cutting the panel curing product cured by the second curing step (S170) to the product standard ( S180) and a water-repellent treatment step (S190) of applying an oil-based paint to prevent moisture from penetrating into the standard product for the panel cut by the cutting step (S180).

In addition, after the second curing step (S170), a non-slip treatment step for forming a non-slip surface by shorting the surface of the panel curing product cured by the second curing step (S170) with a shot ball. may be configured.

Hereinafter, the method of manufacturing the inorganic composite extruded concrete sound insulation panel according to the present invention will be described in more detail with reference to the accompanying drawings 1 and 2 as follows.

First, in the method for manufacturing the inorganic composite extruded concrete sound insulation panel according to the present invention, the mixing step (S110) includes 43 parts by weight to 53 parts by weight of cement, 43 parts by weight to 49 parts by weight of silica powder, and 0.3 parts by weight of iron oxide. Parts by weight to 3.3 parts by weight, 0.4 parts by weight to 0.7 parts by weight of a thickener, 1 parts by weight to 3.2 parts by weight of pulp fiber, 0.6 parts by weight to 1.0 parts by weight of artificial fiber, 0.5 parts by weight to 6.0 parts by weight of waste fiber , 0.3 parts by weight to 0.7 parts by weight of water reducing agent and 20 to 25 parts by weight of water are added to a mixer and mixed, wherein the above mixing step includes cement excluding water, silica powder, iron oxide, and a thickener, A dry mixing step (S111) of putting only pulp fibers, artificial fibers, and waste fibers into the mixer so that the compositions are mixed well with each other, and a water reducing agent in the composition mixed by the dry mixing step (S111) It consists of a wet mixing step (S112) of wet mixing by adding water.

The mixer is configured to circulate cooling water at 3°C to 5°C on the outer circumferential surface to prevent loss of function of the thickener (loss of function at 40°C or higher) due to temperature rise when mixing the composition.

Here, the above-mentioned cement is a conventional Portland cement, and the higher the specific surface area (Blaine:/g) Blaine value (the finer the powder), the faster the initial strength is generated and the strength enhancement rate is high. A Blaine value of 2800/g or more is applied.

In addition, the silica powder is mixed with cement having a SiO ₂ content of 90% or more.

The silica powder is mixed together to produce a mixture, and the mixture is extruded to produce a panel. Various surface textures can be obtained by the silica powder in the form of particles, and the densification of the internal structure can be realized by the silica powder for durability. can be improved.

On the other hand, when less than 43 parts by weight of the silicate powder is mixed, the strength of the produced panel is small. The problem arises that the strength of the cannot be obtained.

In the present invention, preferably, in the case of the previously described cement, when 48 parts by weight and 45 parts by weight of silicate powder are mixed, the strength of the produced panel can be realized to a desired degree.

The above-described iron oxide may be used as an inorganic material, which is collected from a blast furnace or the like in the process of manufacturing steel.

At this time, iron oxide includes ferrous oxide which is black powder, ferric oxide which is red powder, and triferric tetraoxide which is black powder.

In addition, when clay with a high iron content is fired, a red brick color is obtained, and when iron oxide is added to a boric acid glaze containing alkali, a dark red color is obtained. The glaze is black, and other glazes have different shades depending on the composition of the glaze and the heating temperature.

In addition, colored iron oxide and synthetic pigment iron oxide have good dispersibility when used as a colorant for extruded concrete panels and have excellent coloring power only when the particles are fine. 325~1200 mesh is applied.

The above-described thickener functions to increase the physical properties of the panel.

Such a thickener preferably has a viscosity of 35,000 to 75,000.

The above-mentioned pulp fiber is a natural fiber, which has little change in length due to temperature deviation and is excellent in water resistance, fire resistance, and sound insulation properties, and is also applied to the present invention.

The above-mentioned artificial fibers can be applied to synthetic fibers, for example, aramid fibers, polyethylene fibers, polypropylene fibers, acrylic fibers, synthetic fibers such as vinylon fibers (PVA (polyvinyl acohol) fibers) and metal fibers, glass fibers, carbon fibers. . It is preferable to apply a material having alkali resistance and tensile strength, hydrophilicity, and excellent chemical and physical adhesion to be suitable for a double panel.

In addition, the waste fibers are classified as industrial wastes, and the entire amount is incinerated, and is composed of any one of a nylon-polyester hybrid fiber, a nylon-polypropylene hybrid fiber, and a polyester fiber, which causes energy wastage and pollution.

The water reducing agent is configured to improve workability while reducing the amount of water. When it is added to 0.3 parts by weight or less, the amount of water increases, and when it is added to 0.7 parts by weight or more, the amount of water is too reduced to mix Since this is not well connected, the water reducing agent is preferably added in an amount of 0.3 parts by weight to 0.7 parts by weight.

The extrusion molding step (S120) is a step for making the mixture made by the mixing step (S110) into an extruded body through an extruder through which internal air is discharged by a vacuum machine.

Here, when the extruder 10 is manufactured by extruding the composition into an extruder, tearing of the extruder and clogging of the extruder are prevented due to the loss of function of the thickener as the internal temperature rises. The internal pressure of the extruder is 0.08 to 0.1 MPa so as to increase the strength by preventing the formation of bubbles and air layers inside when manufacturing the extruded product, as well as to circulate the cooling water at 3° C. to 5° C. on the outer circumferential surface. configured to keep

In addition, the extruded article molded by the above-described extrusion molding step (S120) is formed in a rectangular plate shape having a predetermined thickness, and on the upper surface there are grooves for sound insulation at regular intervals so as to refract noise to insulate the sound in the longitudinal direction. is formed in plurality, and a plurality of holes having a circular or square cross section are formed in the central part in the longitudinal direction for strength reinforcement and sound insulation.

In addition, coupling protrusions 230 and coupling grooves 240 are further formed on one side and the other side of the sound insulating panel in the longitudinal direction so as to be coupled with other adjacent sound insulating panels.

The conveying step (S130) is to cut or crush the extruded body extruded by the extrusion molding step (S120) and continuously discharged through the conveying unit 20 installed in front of the discharge unit 11 of the extruder 10. This is the stage of transfer without

Here, as shown in FIG. 2 , the transfer unit 20 detects the amount of rotation of the rotary roller 21 rotated by the extruded body discharged through the discharge unit 11 of the extruder 10 , the sensor unit 22 ) is sensed, and the control unit is configured to control a driving motor (not shown) for driving the conveying belt 23 to correspond to the value sensed by the sensor unit 22, so that the extruder (10) Since the extruded molded body discharged through the discharge part 11 of the is conveyed through the conveying belt 23 at the discharge speed, it is conveyed without breaking or denting, so that there is no product defect.

The cutting step (S140) is a step of hydraulically cutting the extruded body transferred by the transferring step (S130).

Here, the hydraulic cutting of the extruded product is hydraulically cut so that a clean cut surface can be obtained while preventing deformation when cutting the uncured extruded product.

The loading step (S150) is a step of loading the panel cut body cut by the hydraulic pressure cutting step (S140) on a pallet to cure it through the first curing step.

The first curing step (S160) is a step of curing with steam by putting the pallet on which the cut body for the panel is loaded by the loading step (S150) into the curing room.

At this time, the above-described panel cutting body is cured in a curing room at a temperature of 60° C. to 75° C. for 10 to 18 hours to prevent cracks.

The second curing step (S170) is a step in which the panel curing product cured by steam in the first curing step (S160) is put into a high-temperature and high-pressure curing chamber to be cured at high temperature and high pressure.

At this time, the secondary curing body is a temperature of 140 ℃ ~ 180 ℃, 7kg/cm ² ~ 10kg/cm ² of pressure environment so that the cured product for the panel cured by the first curing step (S160) is ceramicized. Secondary curing in a high-temperature and high-pressure curing room for 10 to 18 hours.

The cutting step (S180) is a step of cutting the panel cured product cured by the second curing step (S160) with a diamond saw to meet the product standard, and the water repellent treatment step (S190) is the cutting step It is a step of applying an oil-based paint to prevent moisture from penetrating into the standard product cut by (S180).

As described above, the sound insulation panel 200 manufactured by the method for manufacturing an inorganic composite extruded concrete sound insulation panel according to the present invention is formed in a rectangular plate shape having a predetermined thickness as shown in FIG. A plurality of sound-insulating grooves 210 are formed in the longitudinal direction at regular intervals to refract noise to insulate the sound, and a hole 220 having a circular or square-shaped cross section is provided in the center in the longitudinal direction for strength reinforcement and sound insulation. A plurality is formed and provided.

In addition, coupling protrusions 230 and coupling grooves 240 are further formed in the longitudinal direction on one side and the other side of the sound insulating panel 200 to be coupled with other adjacent sound insulating panels.

Further, on the bottom surface of the sound insulating recess 210 of the sound insulating panel 200, a hemispherical, rectangular, or triangular cross-sectional sound insulating protrusion may be further formed in the longitudinal direction.

As described above, the test results for sound attenuation for the inorganic composite extruded concrete sound insulation panel according to the present invention are as shown in the test report below.

That is, as can be seen from the test report above, the acoustic attenuation is 27.9 dB at a frequency of 500 Hz, and the acoustic attenuation is 36.8 dB at a frequency of 1,000 Hz, which is superior to the acoustic attenuation standard value of the soundproof panel.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10 ; extruder 20 ; transport
200 ; sound insulation panel 210 ; groove for sound insulation
220 ; Hall 230 ; bonding protrusion
240 ; coupling groove

Claims (6)

In the method for manufacturing an inorganic composite extruded concrete sound insulation panel,
A mixing step (S110) of mixing a composition consisting of cement, silica powder, iron oxide, thickener, pulp fiber, artificial fiber, waste fiber, water reducing agent, and water in a mixer;
an extrusion molding step (S120) of vacuum extruding the mixture mixed by the mixing step (S110) into an extruder through an extruder through which internal air is discharged by a vacuum machine;
a conveying step (S130) of conveying the extruded product continuously discharged after being extruded by the extrusion molding step (S120) through a conveying unit installed in front of the discharge unit of the extruder without being cut or crushed;
a hydraulic cutting step (S140) of hydraulically cutting the extruded body transferred by the transferring step (S130);
A loading step (S150) of loading the panel cut body cut by the hydraulic cutting step (S140) on a pallet for curing;
a first curing step (S160) of putting the pallet on which the panel cutting body is loaded by the loading step (S150) into a curing room and curing with steam;
a second curing step (S170) of putting the panel curing product cured with steam in the first curing step (S160) into a high-temperature and high-pressure curing room to cure it at high temperature and high pressure;
A cutting step (S180) of cutting the curing product for the panel cured by the second curing step (S170) according to the product standard;
Including a water-repellent treatment step (S190) of applying an oil-based paint to prevent moisture from penetrating into the standard product for the panel cut by the cutting step (S180),
The mixer is a method of manufacturing an inorganic composite extruded concrete sound insulation panel, characterized in that the cooling water is circulated on the outer peripheral surface to prevent loss of function of the thickener due to the temperature rise when mixing the composition.
According to claim 1,
In the mixing step (S110), the composition comprises 43 parts by weight to 53 parts by weight of cement, 43 parts by weight to 49 parts by weight of silicate powder, 0.3 parts by weight to 3.3 parts by weight of iron oxide, and 0.4 parts by weight to 0.7 parts by weight of a thickener. , 1 part by weight to 3.2 parts by weight of pulp fiber, 0.6 parts by weight to 1.0 parts by weight of artificial fiber, 0.5 parts by weight to 6.0 parts by weight of waste fiber, 0.3 parts by weight to 0.7 parts by weight of water reducing agent, and 20 parts by weight to 25 parts by weight of water A method of manufacturing an inorganic composite extruded concrete sound insulation panel, characterized in that it consists of a part.
According to claim 1,
In the mixing step (S110), only cement excluding water, silica powder, iron oxide, thickener, pulp fiber, artificial fiber, and waste fiber is put into the mixer, and the composition is mixed in a dry way so that the composition is well mixed with each other. Inorganic composite extruded concrete sound insulation panel, characterized in that it consists of a dry mixing step (S111) and a wet mixing step (S112) of wet mixing by adding a water reducing agent and water to the composition mixed by the dry mixing step (S111) manufacturing method.
delete In the method for manufacturing an inorganic composite extruded concrete sound insulation panel,
A mixing step (S110) of mixing a composition consisting of cement, silica powder, iron oxide, thickener, pulp fiber, artificial fiber, waste fiber, water reducing agent, and water in a mixer;
an extrusion molding step (S120) of vacuum extruding the mixture mixed by the mixing step (S110) into an extruder through an extruder through which internal air is discharged by a vacuum machine;
a conveying step (S130) of conveying the extruded product continuously discharged after being extruded by the extrusion molding step (S120) through a conveying unit installed in front of the discharge unit of the extruder without being cut or crushed;
a hydraulic cutting step (S140) of hydraulically cutting the extruded body transferred by the transferring step (S130);
A loading step (S150) of loading the panel cut body cut by the hydraulic cutting step (S140) on a pallet for curing;
a first curing step (S160) of putting the pallet on which the panel cutting body is loaded by the loading step (S150) into a curing room and curing with steam;
a second curing step (S170) of putting the panel curing product cured with steam in the first curing step (S160) into a high-temperature and high-pressure curing room to cure it at high temperature and high pressure;
A cutting step (S180) of cutting the curing product for the panel cured by the second curing step (S170) according to the product standard;
Including a water-repellent treatment step (S190) of applying an oil-based paint to prevent moisture from penetrating into the standard product for the panel cut by the cutting step (S180),
The extruder 10 is, when manufactured by extruding the composition into an extruder, to prevent tearing and clogging of the extruder from occurring due to the loss of function of the thickener as the internal temperature rises. The internal pressure of the extruder is maintained at 0.08 to 0.1 MPa so as to increase strength by preventing the formation of air bubbles and air layers inside the extruded product when the cooling water of 3° C. to 5° C. is circulated. A method of manufacturing an inorganic composite extruded concrete sound insulation panel, characterized in that it is configured.
In the sound insulation panel manufactured according to any one of claims 1 to 3 or 5,
It is formed in a rectangular plate shape having a predetermined thickness, and a plurality of sound-insulating grooves 210 are formed in the longitudinal direction at regular intervals so as to refract noise and insulate the sound by refracting the upper surface, and the central part is circular for strength reinforcement and sound insulation. Alternatively, a plurality of holes 220 having a rectangular cross section are formed in the longitudinal direction, and at one side and the other side, the coupling protrusion 230 and the coupling groove 240 are formed in the longitudinal direction to be coupled with other adjacent sound insulating panels. Inorganic composite extruded concrete sound insulation panel, characterized in that it is further formed.

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