JPH10299121A - Sound absorbing type sound insulating block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength of a sound insulating block by forming recessed parts on the obverse, and installing a reinforcing plate composed of a plate having large rigidity such as an iron plate and a plastic plate on the reverse. SOLUTION: A material by mixing cement, a coarse aggregate and water together, is inputted into a form whose upper end is opened, and the upper end of the form is covered with a butting plate and reinforcing plate 3 composed of a plate having large rigidity such as an iron plate and a plastic plate. A large number of projecting parts are provided in an inside bottom part of the form, and the form is reversed so that the reinforcing plate 3 is positioned on the lower end, and the form is pulled up, and is released from a mold. Next, a large number of recessed parts 5 are formed on the upper end of a material released from the mold by a large number of projecting parts existing in the inside bottom part of the form, and a sound absorbing type sound insulating block 6 where a large number of recessed parts 5 are installed on the obverse and the reinforcing plate 3 is installed on the reverse, is molded. Therefore, even if impact is applied to the block, a noise can be easily relieved without being damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound-absorbing sound-insulating block provided on a side of a road, for example, for absorbing noise from a traveling vehicle to mitigate noise to a private house or the like around the road.

[0002]

2. Description of the Related Art Porous concrete (non-concrete)
The process for manufacturing sound-absorbing sound-insulating blocks made of finesse concrete is as follows: A mixture of cement, coarse aggregate, and water is poured into the formwork at the top opening, and the top end of the formwork is made of rigid steel or plastic plate. Closed with a backing plate consisting of a large flat plate, invert the mold so that the backing plate is located at the lower end, pull up the mold in that state, remove the mold, cure the material on the backing plate, dry, Finally, the backing plate is removed from the sound absorbing type sound insulation block.

[0003]

However, the above conventional sound-absorbing type sound-insulating block uses a stiffening plate made of a rigid plate such as an iron plate or a plastic plate at the time of manufacture, but the final product is provided with a slashing plate. There is a problem that the strength is weaker than finesse concrete and very fragile against external pressure because there are many voids inside the block. Therefore, there is a problem that the sound absorbing type sound insulating block is easily damaged when an impact is applied when handling the sound absorbing type sound insulating block or in a state where the sound absorbing type sound insulating block is completely attached to the side of the road.

An object of the present invention is to solve such a problem, and it is an object of the present invention to improve the strength of a sound-absorbing sound-insulating block by keeping a reinforcing plate also serving as a backing plate attached to a final product. Things.

[0005]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention is characterized in that a large number of recesses are formed on the front surface and a reinforcing plate is mounted on the back surface. Further, according to the present invention, the reinforcing plate is made of a flat plate having high rigidity such as an iron plate or a plastic plate.

[0006] With this configuration, the reinforcing plate is attached to the back surface of the sound-absorbing sound-insulating block. However, the sound-absorbing sound-insulating block is less likely to be damaged easily, and the strength of the sound-absorbing sound-insulating block can be improved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, the manufacturing procedure of the sound-absorbing sound-insulating block made of the porous concrete (non-finesse concrete) of the present invention will be described with reference to FIGS. 1 to 3. First, as shown in FIG. Then, a material 2 in which coarse aggregate and water are mixed is charged, and the upper end of the mold 1 is covered with a reinforcing plate 3 which is also a stiff plate such as an iron plate or a plastic plate and also serves as a backing plate. The inner bottom portion of the mold 1 is provided with a number of convex portions 4, and the mold 1 is inverted so that the reinforcing plate 3 is located at the lower end as shown in FIG. 2, and thereafter, as shown in FIG. The mold 1 is lifted and demolded. At the upper end of the material 2 from which the mold has been removed, a large number of concave portions 5 for enhancing the sound absorbing and sound insulating effects are formed by a large number of convex portions 4 present at the inner bottom of the mold 1. Then, the material 2 is cured and dried on the reinforcing plate 3 in the state shown in FIG. 3, and as shown in FIG. 4, a large number of recesses 5 are formed on the surface and the sound absorbing type sound insulation having the reinforcing plate 3 mounted on the back surface. Block 6
Is obtained.

When the upper end of the mold 1 is covered with the reinforcing plate 3 as shown in FIG. 1, a large number of projecting pieces 7 are provided on the lower surface of the reinforcing plate 3, and the projecting pieces 7 The reinforcing plate 3 and the material 2 (sound-absorbing sound-insulating block) are integrated by being pierced into the soft material 2 immediately after being put into the container 1 and being cured and dried as described above.

Since the reinforcing plate 3 is mounted on the back surface of the sound absorbing type sound insulating block 6, the sound absorbing type sound insulating block 6 can be used when the sound absorbing type sound insulating block 6 is handled or when the sound absorbing type sound insulating block 6 is completely attached to the side of a road. Even if a shock is applied to the sound absorbing block 6, the sound absorbing type sound insulating block 6 is not easily damaged.

The sound-absorbing sound-insulating block 6 according to the embodiment of the present invention is provided outdoors as a side construction block of a road, and absorbs noise from traveling vehicles to reduce noise to private houses and the like around the road. In addition to being used for the purpose, it is provided indoors as a block constituting the inner wall surface of a room in a building, and is used for the purpose of absorbing sound indoors.

[0011]

As described above, according to the present invention, the reinforcing plate is attached to the back surface of the sound-absorbing sound-insulating block, so that the sound-absorbing sound-insulating block is completely handled when it is handled or mounted on the side of a road. In this case, even if an impact is applied to the sound-absorbing sound-insulating block, the sound-absorbing sound-insulating block is not easily damaged, and the strength of the sound-absorbing sound-insulating block can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a material of a sound-absorbing sound-insulating block according to one embodiment of the present invention is put into a mold.

FIG. 2 is a cross-sectional view showing a state where the same mold is inverted.

FIG. 3 is a cross-sectional view showing a state where the mold is pulled up and removed.

FIG. 4 is a perspective view of the sound absorbing type sound insulating block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork 2 Material 3 Reinforcement plate 4 Convex part 5 Concave part 6 Sound absorption type sound insulation block 7 Projection piece

Claims (2)

[Claims] 1. A sound-absorbing sound-insulating block, wherein a number of recesses are formed on the front surface and a reinforcing plate is mounted on the back surface. 2. The sound-absorbing sound-insulating block according to claim 1, wherein the reinforcing plate is made of a rigid plate such as an iron plate or a plastic plate.