KR20130091021A

KR20130091021A - Soundproof panel and manufacture method of soundproof panel

Info

Publication number: KR20130091021A
Application number: KR1020120012214A
Authority: KR
Inventors: 안현섭
Original assignee: 주식회사 한일철도
Priority date: 2012-02-07
Filing date: 2012-02-07
Publication date: 2013-08-16

Abstract

The present invention provides a soundproof plate and a soundproofing plate manufacturing method which can greatly improve the durability of the transparent concrete plate, bring about an increase in productivity and work efficiency, and reduce production costs in constructing and manufacturing the soundproof plate by using a permeable concrete plate. It is about.
Soundproof plate of the present invention, the lightweight aggregate and cement and water is mixed with a permeable concrete plate (10) formed through the steam curing after being molded by a molding mold; A concrete soundproof plate 20 attached to a lower portion of the transparent concrete plate 10 for durability and supportability of the transparent concrete plate 10; The adhesive 30 is made to be attached to the bottom of the permeable concrete plate 10 of the concrete soundproof plate 20.

Description

Soundproof panel and manufacture method of soundproof panel

The present invention relates to a soundproofing plate and a soundproofing plate manufacturing method, and more particularly, to improve the durability by curing by steam when manufacturing a concrete soundproofing plate to improve the strength, and after the mass production of sound-absorbing soundproofing boards, The present invention relates to a soundproof plate and a soundproof plate manufacturing method which can improve sound absorbency of the soundproof plate as well as increase the efficiency of durability and productivity by attaching and then curing with steam to manufacture the soundproof plate.

Due to the city's overcrowding due to industrialization, the population concentration in the city is accelerating, and the apartments, which are large-scale residential facilities, are becoming more and more common.In addition, the roads with heavy traffic are adjacent to the large-scale residential facilities. If noise in the area exceeds the limit, noise shielding facilities should be provided.

The noise shielding facility installed in the prior art is a soundproof plate using aluminum, and a soundproofing system that absorbs noise and obtains a soundproofing effect by a noise absorber mounted in an aluminum sheet through a slit-shaped collecting port is used.

In addition, noise shields made of transparent plastics have been used for aesthetics without blocking the driver's vision.

In consideration of economical efficiency, panels and blocks made of foamed concrete are used as soundproof wall equipment.

In the conventional noise shielding facility, the noise shielding facility installed between the road and the residential facility is provided by covering whether there is an aesthetic effect of the city, noise prevention efficiency, and economic feasibility.

The urban aesthetic factor means that the noise shielding facilities are more declining in terms of function, making the urban aesthetics more deteriorating.

Noise prevention efficiency can be divided into blocking the noise and absorbing the noise, and blocking the noise is to block the noise in the audible direction by installing a shielding film in the direction of reaching the noise. In other words, the noise should be reflected to the shielded road, etc., and transmitted in a direction outside the audible direction in the group residential facility, so that the noise is reduced in the residential facility side.

In addition, the noise absorption is to reduce the noise by absorbing the noise transmitted by the physical properties of the sound barrier, there is an effect to reduce the noise transmitted to the driver relatively compared to the mere barrier of the residents as well as residential.

In addition, economic feasibility is one of the most important factors of the economics of the facility because the installation of the road soundproofing facilities in large units, for example, if the price is expensive even if the noise effect is excellent, there is a problem to apply as a road soundproofing facility.

Accordingly, the soundproof wall made of aluminum sheet with the conventional slits has an excellent initial noise absorption efficiency, but clogging due to dust and the like in the air over time, and also difficult to clean, so the aesthetics are not very good. Although the panel is made of lightweight concrete, it is economical, but the lightweight concrete material is particularly weak against impact and it is light concrete, but its weight is not easy to move and install. The concrete block has a narrow unit plane, making it difficult to install and There is a problem that is particularly difficult to bend inside the road.

In addition, the soundproof walls made of transparent plastics, which are frequently installed in recent years, have suitable functions in terms of aesthetics, but the transparent sheet material is very expensive and has a problem in economical efficiency, and the transparent plastics block and reflect the noises rather than absorb the noises. Therefore, there is a problem that almost no sound absorption.

On the other hand, in view of these problems, the sound-absorbing concrete plate and the soundproof plate using the sound-absorbing concrete plate and the soundproof wall using the sound-absorbing concrete plate produced using the permeable concrete, which is published in Korean Patent Publication No. 10-2009-0050516, Aggregate with a single particle size, and a cement paste coated with a viscous cement with a water / cement ratio of 28 to 32% on the surface of the aggregate, is cured, and the voids between the aggregates are exposed on the surface. The inside is made of a pervious sound-absorbing concrete plate of a plate shape having a predetermined size and a predetermined thickness in which pores connected to each other between the aggregate and the aggregate are formed.

In the prior art, the voids are maintained between the aggregate and the aggregate, so that most of the sound incident on the surface is absorbed into the inside of the plate, and the absorbed sound is dissipated and dissipated as thermal energy due to the resonance effect in the void, thereby making noise. It is absorbed and prevented from transmitting noise to residential area or road side as much as possible.

However, the prior art has a problem that the cement dough is separated from the surface of the aggregate in the process of curing by the adhesion of cement and the surface of the aggregate in the process of coating the cement dough on the surface of the aggregate.

As such, when the cement dough falls from the surface of the aggregate, since work must be performed again from the first operation, workability and productivity are greatly reduced, resulting in a problem of poor economic efficiency.

In addition, there is a problem that the process of curing the cement dough coated on the surface of the aggregate and then hardening is made by general natural hardening, so that the durability of the sound-absorbing concrete plate produced is inferior.

Republic of Korea Patent Publication No. 10-1994-0001099 Republic of Korea Patent Publication No. 10-2009-0050516 (published May 20, 2009)

The present invention has been made to solve the problem for the soundproof plate manufactured by using the conventional permeable concrete to produce a permeable concrete plate by mixing the aggregate and cement, and after the steel wire and steel reinforcement in the steel frame, the concrete is poured By immediately attaching the permeable concrete plate manufactured by an adhesive and curing it with steam, the durability of the soundproof plate can be greatly improved, and the strength enhancement can be obtained by greatly strengthening the reinforcement of the permeable concrete plate. The purpose of the present invention is to provide a method for manufacturing a soundproofing plate and a soundproofing plate, which can greatly increase economic efficiency by inducing a reduction in production cost and improve sound absorption as well as durability and productivity efficiency.

Soundproof plate of the present invention as a means for achieving the above object, the light-weight aggregate and cement and water are kneaded and formed by a molding mold, the permeable concrete plate formed through steam curing; A concrete soundproof plate attached to a lower portion of the transparent concrete plate for durability and supportability of the transparent concrete plate; An adhesive for attaching the concrete soundproof plate is formed on the lower portion of the permeable concrete plate.

The permeable concrete plate, the lightweight aggregate having a particle size of 2 ~ 7mm; 3% to 5% by weight of the expanding agent mixed with the lightweight aggregate; Diatomaceous earth powder at 0.3% weight to 0.6% weight; It is made by further mixing the bubble generating material of 0.05% to 0.07% by weight.

Inside the concrete soundproof plate is made of steel wire and reinforcing bars are further provided to improve the durability of the concrete soundproof plate.

In addition, the present invention is a soundproof plate manufacturing method, the first step of forming a permeable concrete plate by mixing and kneading the light aggregate and cement, water, expansion agent, diatomaceous earth powder, bubble generator; A second process step of demolding the permeable concrete plate placed in the molding mold and curing with steam; A third process step of reinforcing the reinforcing core material using reinforcing bars and steel wires in the steel mold; A fourth process step of placing PC concrete (prestressed concrete) and applying an adhesive to the inside of the steel mold in which the reinforcing core material is placed; A fifth process step of placing the permeable concrete cured by the second process step on the inside of the steel mold on which the PC concrete is poured and the adhesive is applied to the adhesive; A sixth process step of curing the concrete soundproof plate by steam curing the steel mold after the fifth process step; A seventh process step of demolding the steam-cured concrete soundproof plate from the steel mold is included.

The expansion agent of the first process step is made by mixing 3% to 5% by weight, the diatomaceous earth powder of the first process step is made by mixing 0.3% by weight to 0.6% by weight, the bubble of the first process step The generator is a mixture of 0.05% to 0.07% by weight.

Steam curing temperature of the sixth process step is made of 65 ℃ ~ 80 ℃.

In the present invention, since the soundproof plate is composed of the permeable concrete plate and the concrete soundproof plate are combined, the durability and supportability are greatly improved by the concrete soundproof plate, and the sound absorption according to the gap between the aggregate and the aggregate of the permeable concrete plate can be improved as well. In addition, it is possible to prevent cracking or breakage in the curing process of concrete poured by steam curing, and to increase steel wires by greatly strengthening the reinforcement of permeable concrete plate, and to reduce production cost. It can greatly increase the economics by improving the efficiency, improve the sound absorption, as well as increase the efficiency of the durability and productivity, and can reduce the production cost significantly by using low-cost bubble generators without using expensive aluminum powder It can maintain the strength of concrete.

1 is a perspective view showing an example of the sound insulation plate of the present invention.
2 is a configuration diagram showing an example of installation of the sound insulation plate of the present invention.
3 is a cross-sectional view showing the configuration of the sound insulation plate of the present invention.
Figure 4 is a block diagram showing the configuration of a transparent concrete plate of the soundproof plate of the present invention.
5 is a process chart showing a process of the method for manufacturing a sound insulation board according to the present invention.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

1 to 3, the soundproof plate of the present invention comprises a transparent concrete plate 10, a concrete soundproof plate 20 and the adhesive 30.

The permeable concrete plate 10 is formed by mixing the lightweight aggregate, cement, and water, kneading, molding, and then steam curing.

At this time, the transparent concrete plate 10 is a lightweight aggregate 11 having a particle size of 2 to 7mm, 3% to 5% by weight of the expanding agent 12, 0.3% to 0.6% by weight The diatomaceous earth powder 13 and the foaming material 14 having a weight of 0.05% to 0.07% by weight are further mixed.

The light weight aggregate is preferably made of porous (多 다공성 性) light weight aggregate.

Permeable concrete plate 10, so that the noise is transmitted through the vanish, the gap (10a) is formed between the light aggregate (11) and the noise is introduced into the vane (10a) to disappear.

The concrete sound insulation plate 20 is attached to the lower portion of the transparent concrete plate 10 to improve the durability and supportability of the transparent concrete plate 10.

At this time, the concrete soundproof plate 20 and the transparent concrete plate 10 by the adhesive 30 is attached by the adhesive 30 before the poured concrete soundproof plate is cured, the adhesive 30, the concrete soundproof plate What is necessary is just an adhesive which can attach 20 and the permeable concrete board 10 to each other.

In addition, the inside of the concrete soundproof plate 20 is made of a steel wire 21 and the reinforcing bar 22 to improve the durability of the concrete soundproof plate 20 is further provided.

Accordingly, the durability and support for the concrete soundproof plate 20 may be further reinforced by the steel wire 21 and the reinforcing bar 22.

The sound insulation board of this invention comprised as mentioned above should just provide the support stand H which consists of H beams, as shown in FIG.

The soundproof plate manufacturing method of the present invention of the soundproof plate of the present invention, the soundproof plate manufacturing method of the present invention, a light-weight aggregate and cement and water, an expanding agent, diatomaceous earth powder, bubble generator mixed and kneaded into a molding mold permeable concrete plate The first process step (S1) for molding the mold, the second process step (S2) for demolding the permeable concrete plate put into the molding mold and curing with steam, and the reinforcing core material using the reinforcing steel and steel wire inside the steel mold The third process step (S3) for reinforcement, the fourth process step (S4) for placing a PC concrete (prestressed concrete) in the interior of the steel frame with the reinforcement core is reinforcement and applying the adhesive, and the PC concrete is poured and adhesive A fifth process step (S5) in which the permeable concrete cured by the second process step is attached to the adhesive and the steel mold is steam-cured after the fifth process step. The sixth process step (S6) for curing the concrete soundproof plate, and the seventh process step (S7) for demolding the steam-cured concrete soundproof plate from the steel mold.

The mixing ratio of the cement and water (W / C (Water / Cement mixing ratio) is preferably mixed at 26% to 32% by weight, which is different from the general W / C ratio used at about 50% to 60% by weight. This is to prevent the dough mixed with cement and water from flowing down when coated on the surface of lightweight aggregate.

At this time, it is preferable to use high strength cement for cement.

In addition, the expansion agent of the first process step is mixed 3% by weight to 5% by weight, the diatomaceous earth powder of the first process step is mixed 0.3% by weight to 0.6% by weight, the bubble generator of the first process step 0.05% weight to 0.07% weight may be mixed.

The diatomaceous earth powder is preferably made of a cement performance enhancer to enhance the performance of the cement, which generates a decrease in cement performance when the foam is generated to secure porosity of the soundproof plate, which slightly degrades the cement performance. In order to prevent the cement performance enhancer to be used as diatomaceous earth powder to prevent the degradation of the cement performance even if bubbles are generated.

The bubble generator is used as a substitute for expensive aluminum powder, which is generally used, by using bubbles of sodium sulfonate-based bubble generator to form bubbles or holes for cement mixed with the lightweight aggregate 11. Increase the absorption of noise.

In addition, the production cost can be greatly reduced by not using expensive aluminum powder.

That is, in the conventional permeable concrete sound absorbing plate, since the expensive aluminum powder is used as a bubble generator, the production cost is increased by the expensive aluminum powder, which inevitably increases the cost consumed during the construction of the overall soundproof panel. It is possible to reduce the production cost significantly compared to the prior art by using a low-cost sodium sulfonate-based bubble generator, rather than using an expensive aluminum powder, it is possible to reduce the overall cost of the soundproof panel construction.

Steam curing in the second process step (S2) and steam curing in the sixth process step (S6) in the soundproof plate manufacturing method of the present invention is to prevent cracking or breakage during the curing process, at this time Steam curing temperature of the sixth process step is made of 65 ℃ ~ 80 ℃.

This is because the curing time becomes longer when the steam curing temperature is 65 ° C. or lower, and the curing time is shortened when the steam curing temperature is 80 ° C. or higher, but the final strength is lowered.

In addition, the reason for steam curing in the present invention is that when the cement itself is rapidly drying, the expansion of the cement is lowered and the dry shrinkage of the cement occurs. This is to prevent this because cracks are generated in the cement, which causes the durability to fall and breaks.

At this time, the bubble generator uses one selected from the group consisting of sodium dodecylbenzenesulfonate, sodium alkylbenzenesulfonate and sodium alkylolefinsulfonate.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

10: permeable concrete plate 11: lightweight aggregate
12: expanding agent 13: diatomaceous earth powder
20: concrete sound insulation board 21: steel wire
22: rebar 30: adhesive
S1: first process step S2: second process step
S3: third process step S4: fourth process step
S5: fifth process step S6: sixth process step
S7: 7th process step

Claims

Light-weight aggregate and cement and water are kneaded and molded by a molding mold, and then a permeable concrete plate 10 formed through steam curing;
A concrete soundproof plate 20 attached to a lower portion of the transparent concrete plate 10 for durability and supportability of the transparent concrete plate 10;
Soundproof plate comprising an adhesive 30 positioned between the transparent concrete plate 10 and the concrete soundproof plate 20 so that the concrete soundproof plate 20 is attached to the lower portion of the transparent concrete plate 10.

The method according to claim 1,
The transparent concrete plate 10,
A lightweight aggregate 11 having a particle size of 2 to 7 mm;
3% to 5% by weight of the expanding agent 12;
Diatomaceous earth powder (13) having a weight of 0.3% to 0.6%;
A sound insulation board, characterized in that the foaming material (14) of 0.05% to 0.07% by weight is respectively mixed.

The method according to claim 1,
Soundproof plate, characterized in that the inside of the concrete soundproof plate 20 is further provided with a steel wire 21 and reinforcing bar (22) for improving the durability of the concrete soundproof plate (20).

A first process step (S1) of forming a permeable concrete plate by mixing and kneading the lightweight aggregate with cement, water, an expanding agent, a diatomaceous earth powder, and a bubble generating agent into a molding mold;
A second process step (S2) of demolding the permeable concrete plate put in the molding mold and curing with steam;
A third process step (S3) of reinforcing core material using reinforcing bars and steel wires in the steel mold;
A fourth process step (S4) of placing PC concrete (prestressed concrete) and applying an adhesive to the inside of the steel mold in which the reinforcing core material is placed;
A fifth process step (S5) of placing the permeable concrete cured by the second process step on the inside of the steel mold on which the PC concrete is poured and the adhesive is applied;
A sixth process step (S6) of curing the concrete soundproof plate by steam curing the steel mold after the fifth process step;
A soundproof plate manufacturing method comprising a seventh process step (S7) of demolding a steam-cured concrete soundproof plate from an iron mold.

The method of claim 4,
Sound expansion plate manufacturing method characterized in that the expansion agent of the first process step is made by mixing 3% by weight to 5% by weight.

The method of claim 4,
The diatomaceous earth powder of the first process step is 0.3% by weight to 0.6% of the soundproof plate manufacturing method characterized in that the mixture is made.

The method of claim 4,
The foam generator of the first process step is characterized in that the 0.05% to 0.07% by weight of the mixture is made of a soundproof plate manufacturing method.

The method of claim 4,
The steam curing temperature of the sixth process step is 65 ℃ ~ 80 ℃ characterized in that the manufacturing method of the soundproof plate.

The method of claim 4,
The bubble generator of the first process step,
A method for producing a sound insulation board, characterized in that one selected from the group consisting of sodium dodecylbenzenesulfonate, sodium alkylbenzenesulfonate and sodium alkylolefinsulfonate.