JPH10331289A - Silencing panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent noise arising from means of transportation such as tunnel, road or railway by forming holes or grooves communicated to hollow spaces on a decorative surface of long-shaped panels made of inorganic material having hollow spaces inside. SOLUTION: A decorative surface 6 and a plurality of hollow spaces 7 are provided, a long board shape having a plurality of holes 8 communicated to a hollow space 7 is formed with pushing out - drying - burning of clay for example. Or cement, gypsum, admixture and water are used as raw materials and processed by pushing out, curing and autoclave thereby increasing the rigidity and strength. Then, this inorganic material has an excellent fire resisting performance, prevents flashing even during the occurrence of fire in a tunnel, on road or railway, thereby preventing the occurrence of harmful gases and smoke and securing noise insulation. Therefore, weather resistance and durability are excellent, construction work can be easily performed, and corrosion is none. Diffused reflection by lights of cars is less, visibility is good and driving through a tunnel can be made easier. By doing this, cost can be reduced and a great silencing effect can be obtained compared to the conventional silencing wall.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a muffling panel for preventing noise in transportation such as tunnels, roads and railways.

[0002]

2. Description of the Related Art With the speeding up of the transportation network, noise pollution to residents along the railway has become a problem, and as a solution to this problem, concrete, cement, etc. have high sound insulation so that sound is not diffused outside. (High-density material) A wall was formed by casting a material. In addition, as the inner wall material of the tunnel, a metal plate (made of stainless steel, made of enamel) is attached to the tunnel base through a fixture,
They were arranged with a narrow width, or a calcium silicate plate or the like was arranged via metal fittings, mortar, or the like.

[0003]

However, the conventional silencing walls formed on roads and railroad tracks cannot provide sufficient silencing for the noise of cars and trains that are increasing in size and speed, and the noise to residents along the railroads cannot be reduced. The problem of pollution was not solved. Furthermore, when metal plates are installed in the tunnel of the road through the fixtures, corrosion of both the sound-absorbing panel and the fixtures will progress due to the effects of high concentration, exhaust gas containing various harmful gases, humidity, etc. When used in a tunnel of a highway, much more quickly, the progress of corrosion is further accelerated by the splashing of a salt-containing snow-melting agent (snow-melting material). In addition, when a large number of tiles are used, not only is time and labor required for construction work, which leads to an increase in cost, but also the light of the vehicle is irregularly reflected, and the visibility is deteriorated.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such a drawback, the present invention relates to a panel made of an inorganic material having a long plate-like shape and having a hollow inside, which is hollowly connected to a decorative surface of the panel. It is intended to propose a sound deadening panel in which holes or grooves are formed.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIGS. 1 (a) to 1 (e) show a tunnel A or a road / track B on which a sound-absorbing panel according to the present invention is constructed. As shown in FIG. , A road shoulder D, and a work sidewalk E, and are formed by covering a decorative surface 2 on the inner surface of a tunnel A and a road / track B with a sound deadening panel 1. Of course, the road shoulder D and the work sidewalk E may be on both sides or one side of the road surface C, or may be absent.

The structure of the decorative surface 2 is as shown in FIG. 2, which is a partially enlarged view of FIG. 1. Reference numeral 3 denotes an underlayer, 4 denotes a primer layer, and 5 denotes an adhesive layer. Primer layer 4 is base 3
The primer is applied to the area where the decorative surface 2 is formed, and the adhesive strength of the adhesive layer 5 is improved.
The adhesive layer 5 is an elastic adhesive having a certain thickness, and is used for attaching the sound deadening panel 1 to the base 3.

The sound deadening panel 1 is, for example, shown in FIGS.
(A) and (b) (cross-sectional views in FIG. 3) are used. That is, the sound deadening panel 1 is a long panel having a decorative surface 6 and a plurality of hollows 7 and a plurality of holes 8 communicating with the hollows 7.

The thickness of the sound deadening panel 1 is about 5 to 100 mm, the width is about 100 to 1000 mm, and the length is 600 to 50 mm.
It is about 00 mm. The sound deadening panel 1 is, for example, a material obtained by extruding, drying, and firing clay or the like, or a material obtained by extruding, curing, and autoclaving using cement, asbestos, an admixture, water, or the like as a raw material. It is a good and economic panel. In addition, since it is completely inorganic, it has excellent fire resistance, does not ignite even if a fire occurs in tunnel A, road / track B, produces no harmful gas and smoke, and has excellent sound insulation. is there.

[0009] The material of the sound deadening panel 1 is pottery stone, feldspar,
Clay materials obtained by crushing kaolinite, halloysite, metahalloysite, Kibushi clay, Frogme clay, Shigaraki clay, etc., and kneading them with water, or cement, calcium carbonate, calcium silicate, wood chip cement, magnesium carbonate Extrusion molding, press molding, and sheeting of system materials, sheathing boards, sheathing insulation boards, etc., or mixtures of these with glass fibers, whiskers, aramid fibers, steel fibers, carbon fibers, various mineral fibers, various aggregates, etc. Formed by a method or the like, or woven of various fibers in a cloth or three-dimensional shape, impregnated with cement, clay, etc., and formed into a panel shape, steam cured, or dried and fired (1000 ° C or more) And the like.

[0010] Although not shown, by burying a wire or passing a wire through the hollow 7, it is possible to enhance the prevention of scattering when the sound deadening panel 1 is broken by any chance. Of course, JIS-Z-8722 (color measuring method, reflection and transmission object colors) of the sound deadening panel 1, JIS-Z-874
The measurement result of 1 (the specular gloss measurement method) has a performance that passes the tunnel A standard.

The decorative surface 6 preferably has a white color, and glaze may be applied to improve weather resistance and washing efficiency. Glazes include, for example, lead glaze, lead-free glaze, tin glaze, porcelain glaze, majolica glaze, furnace glaze, Bristol glaze, rockingham glaze, Zegel porcelain glaze, raw glaze, clay glaze, frit glaze, volatile glaze, gloss glaze, It consists of mat glaze, aventurine glaze, crystal glaze, raster glaze, transparent glaze, opaque glaze, etc., which is glazed on the decorative surface and protects (coats) the decorative surface 6.
It functions as a material, a decorative material, a water-resistant material, a durable material, and the like. In addition, as for the method of glazing, the above glaze is applied to the decorative surface 6 with a glazing machine composed of a kind such as a spray gun or a flow coater.
Apply it on top with a certain thickness and fire it with a dryer such as gas, electricity, petroleum, infrared heater, far infrared heater, microwave heater, etc. at a temperature lower than the maximum heating temperature of the main firing temperature to make the glaze glassy Is cured and fixed.

The hollow 7 is effective as a passage for heat and water vapor at the time of reducing the weight of the sound deadening panel 1 and firing, and also extinguishes the noise of the car due to a synergistic effect with the hole 8 described later, and the inside of the tunnel A and the road -The effect of reducing noise inside and outside the track B is exhibited. In addition, by passing a wire or the like in some cases, it is possible to enhance the prevention of scattering when the sound deadening panel 1 is broken.

The hole 8 communicates with the hollow 7 and eliminates the noise of the vehicle by a synergistic effect with the space of the hollow 7 and exhibits the effect of reducing the noise inside and outside the tunnel A and the road / track B. .

The primer layer 4 has a decorative surface 2 on the surface of the base 3.
Is applied to the area in which is formed, and is effective for strengthening the adhesive force between the base 3 and the adhesive layer 5. Although the primer layer 4 is not essential, for example, a two-liquid type is used in which the main components are epoxy resin and a modified polyamideamine, each of which is a main component and a curing agent are mixed.

The adhesive layer 5 fixes the sound deadening panel 1 to the base 3 and is formed in a layered, linear, net-like, or wavy shape with a thickness of about 1 to 30 mm, and the sound deadening panel 1 is integrally formed on the base 3. It sticks. In particular, cement mortar, epoxy mortar, or other synthetic resin adhesive is used as the adhesive layer 5, but it is soft just before the adhesion, makes it easy to adjust the mounting position of the sound deadening panel 1, and reduces the adhesive force by pressing. Properties that are greatly promoted are preferred,
A component that does not deteriorate due to moisture, vibration, and exhaust gas components is preferred. As a specific example of the adhesive layer 5, for example, an epoxy resin-based adhesive of a two-component normal-temperature curing type is used.

The adhesive used for the adhesive layer 5 includes, for example, an epoxy resin and an inorganic filler as a main component of a main component, and a modified polyamidoamine and an inorganic filler as a main component of a curing agent.
Liquid type, with an initial curing time of 5 minutes to 1 day, tensile shear bond strength of 1,800 to 2200 (N / cm ² ),
Use a T-type peel adhesive having a strength of 5 to 60 (N / 25 mm) and a water absorption of about 0.1 to 3.0%. In addition, the workability can be greatly improved by using the adhesive layer 5 that does not fall off or slip off even immediately after the sound deadening panel 1 is attached.

The above is only one embodiment of the sound deadening panel according to the present invention, and the sound deadening panel 1 can be formed as shown in FIGS. That is, FIG.
(A) to (e) show the sound deadening panel 1 in which the shape of the hollow 7, the decorative surface 6, and the back surface is variously modified.

FIGS. 6A to 6D show a sound deadening panel 1 in which upper and lower ends are deformed. FIGS. 7 (a) to 7 (j) are illustrations showing the hollow 7 and FIGS. 8 (a) to 8 (h) are illustrations showing other examples of the hole 8. FIG.

FIGS. 9 (a) and 9 (b) show the sound deadening panel 1 in which the holes 8 are formed in a staggered shape or the intervals are reduced, and FIG. 10 shows the sound deadening panel 1 in which the hollow 7 is formed in a circular shape.

FIGS. 11 to 14 show a sound-absorbing panel 1 in which a groove 9 is formed in place of the hole 8. In particular, FIGS. This is an improved noise reduction panel 1.

FIGS. 15A to 15L are cross-sectional views showing another embodiment of the hole 8 and the groove 9.

Of course, in addition to the fixing with the adhesive, the muffling panel 1 can be fixed to the base 3 via a fixture.

Although the sound-absorbing panel 1 is constructed in a horizontal state in the drawing, it may be constructed in a vertical state.

[0024]

As described above, according to the sound deadening panel according to the present invention, by using a long plate-like inorganic material having excellent weather resistance and durability as the sound deadening panel, construction is easy and corrosion is prevented. There is nothing. There is little irregular reflection due to lights of automobiles and the like, and visibility is good, and driving in the tunnel is easy.
A great noise reduction effect can be obtained as compared with the conventional noise reduction wall.
Good workability because it is thin and light. Good workability and work environment because of the dry method. Workability is good and cost is low because the work can be carried out even on a conventional wall. Features such as
effective.

[Brief description of the drawings]

FIG. 1 shows a tunnel for installing a sound deadening panel according to the present invention;
It is explanatory drawing which shows a road.

FIG. 2 is an explanatory view showing a construction state of a sound deadening panel according to the present invention.

FIG. 3 is an explanatory view showing a typical example of a sound deadening panel used in the present invention.

FIG. 4 is a cross-sectional view showing a typical example of a sound deadening panel used in the present invention.

FIG. 5 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 6 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 7 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 8 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 9 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 10 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 11 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 12 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 13 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 14 is an explanatory view showing another example of the sound deadening panel used in the present invention.

FIG. 15 is an explanatory view showing another example of the sound deadening panel used in the present invention.

[Explanation of symbols]

 Reference Signs List A tunnel B road / track C road surface D shoulder E work sidewalk 1 sound-absorbing panel 2 decorative surface 3 base 4 primer layer 5 adhesive layer 6 decorative surface 7 hollow 8 hole 9 groove 10 layer

Claims (1)

[Claims] 1. A sound-absorbing panel comprising a long panel-shaped panel made of an inorganic material having a hollow inside, wherein a hole or a groove communicating with the hollow is formed in a face serving as a decorative surface of the panel.