JP2001288760A - Greening sound absorption block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a greening sound absorption block used for a structure such as earth retaining wall, slope protection material curb or the like. SOLUTION: The greening sound absorption block is constituted of a porous concrete and moss covering the whole surface or a part of the porous concrete, its maintenance can be easily made, it is tender to one's eyes, and a carbon dioxide absorption warmth controlling effect is maintained for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a greening sound absorbing block mainly used for structures such as retaining walls, slope protection materials, curbs and the like.

[0002]

2. Description of the Related Art Heretofore, soundproof walls have often been provided in places where noise is severe, such as roads and railways. However, these soundproof walls are generally made of metal, ceramic, synthetic resin, and other plate materials continuously provided on the surface thereof, and the structure of the soundproof walls is uniform, has little change, and is not preferable in view of the landscape. Did not. In addition, since the road is generally paved and there is no soil, it has been difficult to plant a plant or green the soundproof wall.

As a method for solving the above-mentioned problem, Japanese Utility Model Publication No. Sho 63-22162 proposes a greening soundproof wall in which a soil container for vegetation is integrally provided on the soundproof side of the soundproof wall. Japanese Utility Model Application Laid-Open No. 63-199551 discloses a soundproof panel in which a fiber sound-absorbing material such as rock wool is embedded, and a nutrient solution is added to a portion of the fiber sound-absorbing material such as rock wool in the soundproof panel. A greening soundproofing wall has been proposed in which a plant planting opening is provided on a front surface material or a back surface material, and plants are vegetated in the plant planting opening. Also, JP-A-5-112
Japanese Patent Application Publication No. 913 discloses a greening soundproofing wall integrally provided with a soil container for vegetation on the opposite side of the soundproofing surface of the soundproofing wall. Also, the present inventor has previously described in Japanese Patent Application Laid-Open No. H11-172637.
In the publication, a sound-absorbing material is attached to at least one surface of an upright portion of a wall-shaped concrete molded product, a soil accommodating portion is formed in at least one of the lower portions of the upright portion, and the entire surface of the concrete molded product is formed. We proposed a greening soundproof wall with a reticulated body.

[0004]

However, the greening soundproof wall proposed in the above-mentioned Japanese Utility Model Publication No. 63-22162 is easy on the eyes because the soundproof side of the soundproof wall is covered with vegetation and becomes green. It is preferable because the fatigue of the driver is reduced, but there is a problem that the soundproofing effect is inferior as compared with the case where the soil storage portion is not provided. As a result of studying the cause by the present inventor, it was found that the soil storage portion provided on the soundproofing surface reflects sound and hinders the soundproofing effect.

On the other hand, in the sound-insulating wall proposed in Japanese Utility Model Application Laid-Open No. 63-199551 in which a nutrient solution is added to the fiber sound-absorbing material, the fiber sound-absorbing material such as rock wool has a soundproofing effect if it contains a liquid such as water. Is significantly reduced.

[0006] Further, in a green soundproofing wall provided with a soil housing portion for vegetation on the opposite side of the soundproofing surface, the soil housing portion is provided above the greening soundproofing wall. There was a problem that the seismic resistance decreased.

The inventor of the present invention has disclosed in Japanese Patent Laid-Open No. 11-1726.
No. 37, a sound-absorbing material is attached to at least one surface of an upright portion of a wall-shaped concrete molded product, and a soil accommodating portion is formed in at least one of the lower portions of the upright portion. There is a problem that the maintenance of the greening soundproof wall in which the net-like body is covered over is difficult and costly.

Therefore, the present inventor has made it easy to maintain and manage,
An object of the present invention is to provide a greening sound-absorbing block that is gentle on human eyes and maintains the effect of suppressing carbon dioxide absorption and warming over a long period of time.

[0009]

The greening sound absorbing block according to the first aspect of the present invention is made of porous concrete and moss covering the entire surface or a part of the surface of the porous concrete. The effect of suppressing carbon dioxide absorption and global warming is maintained over a long period of time.

The greening sound absorbing block according to claim 2 of the present invention comprises porous concrete and moss adhered to the entire surface or a part of the surface of the porous concrete.
Moss on the porous concrete surface does not easily come off.

The greening sound-absorbing block according to the third aspect of the present invention is obtained by mixing an artificial lightweight aggregate as an aggregate of porous concrete, and is advantageous from the viewpoint of the structure of the upper body which can be easily mounted.

The greening sound-absorbing block according to the fourth aspect of the present invention is made of a porous concrete structure in which ordinary concrete is lined on the back surface.

[0013]

FIG. 1 is a perspective view showing an example of an embodiment of a greening sound absorbing block according to the present invention, and FIG.
It is sectional drawing a. Numeral 1 is porous concrete, and moss is attached to the surface thereof. The greening concrete block in this example has a diameter of 0.85 mm to 1.52 m.
moss is attached to the surface of a 500 mm square, 50 mm thick block obtained by bonding and curing an artificial lightweight aggregate of m in a porous manner with a cement binder using a synthetic resin such as an acrylic emulsion. The greening sound absorbing block in this example is attached to a side wall of a road as a structure, and is used as a soundproof wall. Further, the greening sound absorbing block in this example may be used by being attached to a road retaining wall, a slope material, or the like. As shown in the figure, in the present invention, moss is attached only to the surface of the aggregate constituting the porous concrete, so that the gap between the aggregates is not sealed and the sound absorbing effect is not impaired.

FIG. 3 is a sectional view showing another example of the embodiment of the greening sound absorbing block of the present invention. The greening concrete block in this example is a porous concrete layer in which an artificial lightweight aggregate having a diameter of 0.85 mm to 1.52 mm is bonded and cured in a porous manner with a cement binder on ordinary concrete as a structure, and an acrylic layer is formed on the surface thereof. Moss is made to adhere with a synthetic resin such as an emulsion. The greening sound absorbing block in this example is installed on the road side and used as a soundproof wall. The greening sound absorbing block is preferably used in the form of a wall, a slope protection plate, a curb and the like.

FIG. 4 shows another embodiment of the greening sound absorbing block according to the present invention, wherein (a) is a front view and (b) is a plan view. In the figure, reference numeral 2 denotes moss, and in this example, a case where the moss is erected on the side of a road or the like is shown, and a white arrow indicates a line of sight. When viewed from the line of sight, the moss arranged in a belt shape can be visually recognized in a planar manner, and also has an excellent sound absorbing effect.

Next, Table 1 shows the measurement test results of the vertical sound absorption coefficient of the greening sound absorbing block of the present invention. No. 2 is an example of the present invention, in which moss was adhered to the surface of a porous concrete substrate with a synthetic resin, and No. 1 shows a comparative example in which only a porous concrete substrate was used.

[0017]

[Table 1]

[0018]

As described above, the greening sound absorbing block according to the first aspect of the present invention is made of porous concrete and moss covering the whole or part of the surface of the porous concrete, and is easy to maintain and manage. The effect of suppressing carbon dioxide absorption and global warming is maintained over a long period of time.

The greening sound absorbing block according to claim 2 of the present invention comprises porous concrete and moss adhered to the entire surface or a part of the surface of the porous concrete.
Moss on the porous concrete surface does not easily come off.

The greening sound-absorbing block according to the third aspect of the present invention is obtained by mixing an artificial lightweight aggregate as an aggregate of porous concrete, and is advantageous in the structure of the upper body which can be easily attached.

The greening sound-absorbing block according to the fourth aspect of the present invention is a block in which ordinary concrete is lined on the back of porous concrete. The porous concrete is reinforced with ordinary concrete on the back and is hardly broken.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a greening sound absorbing block of the present invention.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a sectional view showing another example of the embodiment of the greening sound absorbing block of the present invention.

FIG. 4 is a front view and FIG. 4B is a plan view showing another example of the embodiment of the greening sound absorbing block of the present invention.

[Explanation of symbols]

 1 Porous concrete 2 Moss 3 Ordinary concrete 4 Synthetic resin

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Claims (4)

[Claims] 1. A greening sound absorbing block comprising porous concrete and moss covering the whole or part of the surface of the porous concrete. 2. A greening sound absorbing block comprising porous concrete and moss adhered to the whole or part of the surface of the porous concrete. 3. The greening sound absorbing concrete block according to claim 1, wherein an artificial lightweight aggregate is blended as an aggregate of the porous concrete. 4. The greening sound absorbing concrete block according to claim 1, wherein ordinary concrete is lined on a back surface of the porous concrete.