JP2622489B2 - Method of manufacturing radio wave absorbing wall panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of installing a plurality of decorative finishing materials (mainly, finishing tiles, etc.) side by side on the bottom of a wall panel forming formwork in front, rear, left and right. And mounting it while adhering multiple ferrite moldings to
The present invention relates to a method for manufacturing a radio wave absorbing wall panel in which concrete is cast on the ferrite-based molded body.

[0002]

2. Description of the Related Art Generally, a radio wave absorbing wall panel is constructed by attaching a decorative finish such as a tile or a stone to the surface of a concrete panel made of a PC board or the like, and using the decorative finish. It is molded by interposing a ferrite-based molded body as a radio wave absorber on the back side.

Conventionally, in this type of electromagnetic wave absorbing wall panel, a ferrite-based molded body is bonded to the back side of a decorative finishing material with an adhesive also serving as a cushioning material, and concrete is cast as a structure thereon. Thus, they are integrally formed. In this case, it is sufficient that the joints can be filled with concrete at the same time, but there is a problem that the joints cannot be completely filled with concrete because the joints are generally very small.

Further, if the thickness of the decorative finishing material (about 10 mm) is thin, it is not possible to secure a joint space enough to sufficiently fill the concrete, so in the case of stone finishing, the joint material is filled with a sealing material. In the case of tile finishing, joint mortar is pre-attached before concrete is cast, or concrete is cast, hardened, demolded, and joint mortar is post-installed, so workability is poor, There were problems such as a significant decrease in productivity.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to reliably fill concrete into joints. It is an object of the present invention to provide a method of manufacturing a radio wave absorbing wall panel that enables a significant improvement in productivity.

[0006]

According to a method of manufacturing a radio wave absorbing wall panel according to the present invention, a plurality of decorative finishing materials are arranged side by side on the bottom of a wall panel forming form, and are arranged side by side. This is a decorative finishing material that can be used when manufacturing a radio wave absorbing wall panel by placing a plurality of ferrite moldings on a finishing material while bonding them together, and placing concrete on the ferrite moldings. In addition to providing a gap that can be filled with concrete, a roundness is provided on the inner surface of the gap so that the filling property of the concrete is enhanced, and the concrete is placed on the decorative finishing material and the ferrite-based molded body. The first layer of concrete to be cast and the second layer of concrete to be cast on the first layer of concrete, and the first layer of concrete High fluidity and, using a separate hard lightweight concrete, characterized by the use of conventional lightweight concrete the concrete of the second layer.

[0007]

FIG. 1 shows an example of a radio wave absorbing wall panel (hereinafter referred to as a "wall panel"). Reference numeral 2 denotes a ferrite-based molded body that is bonded to the back side of the decorative finishing material 1 and absorbs electromagnetic waves. Reference numeral 3 denotes an adhesive that bonds the ferrite-based molded body 2 to the back side of the decorative finishing material 1. The joint gaps 5 formed between the materials 1 and 1 are the gaps 4 and the decorative finish 1
And a first-layer concrete body 6 formed to a predetermined thickness above the ferrite-based molded body 2, and a second-layer concrete body 6 formed to a predetermined thickness on the first-layer concrete body 5 integrally therewith. The concrete body of the layer, 7 is an anchor for fixing the decorative finishing material 1 one by one in the concrete of the concrete body 5 of the first layer, 8 is the concrete body 5 of the first layer and the concrete 6 of the second layer. Reinforcing reinforcing bars arranged, and
Reference numeral 9 denotes a reinforcing steel bar 8 when the concrete of the first layer concrete body 5 and the second layer concrete body 6 is poured.
On the ferrite-based molded body 2.

The decorative finishing material 1 is formed in a rectangular plate shape. A cutout 10 is formed at the edge of the facing long side of the decorative finishing material 1, and a gap 4 for joints is formed between the decorative finishing materials 1 and 1 formed by the cutouts 10. It is formed continuously in the longitudinal direction of the material 1. Also,
An engagement groove 10a for hooking and fixing the anchor 7 is formed in the notch 10 continuously in the longitudinal direction of the decorative material 1.

Further, a concave portion 11 for applying the adhesive 3 is formed on the back surface of the decorative finishing material 1. Recess
Numeral 11 is formed in a dovetail shape so that the adhesive 3 does not flow out.

Further, the decorative finishing material 1 is formed so as to form the voids 4 as large as possible, and to fill the voids 4 with as much joint concrete as possible.
Furthermore, the fluidity of the concrete immediately after filling is improved,
The inner surface of the cavity 4, that is, the corner of the notch 10 forming the cavity 4 is rounded so that concrete can be reliably filled into every corner of the cavity 4.

The ferrite-based molded body 2 is formed in a slightly longer rectangular plate shape so that it can be bonded over two or three decorative finishing materials 1 and 1.

As the concrete of the concrete body 5 of the first layer, a concrete (slump flow value of about 400 to 700 mm) which is rich in fluidity and difficult to separate easily is used. As this type of concrete, for example, a high performance water reducing material is mixed into a standard lightweight concrete to increase the slump value of the concrete, and a separation reducing material (polyacrylamide compound (for example, trade name “Asano N
S "(manufactured by Nippon Cement Co., Ltd.) is used to prevent the separation of the lightweight aggregate (NS concrete).

As the concrete of the concrete body 6 of the second layer, lightweight concrete widely used for a precast concrete plate or the like is used in order to reduce the weight of the entire panel.

Table 1, Table 2, Table 3, Table 4, and Table 5
It is a table | surface which shows the experimental results, such as a concrete mixing condition in order to obtain an optimal concrete, regarding the filling property, durability, etc. of concrete.

[0015]

[Table 1]

[0016]

[Table 2]

[0017]

[Table 3]

[0018]

[Table 4]

[0019]

[Table 5]

The anchor fitting 7 is formed in a gate shape from a stainless steel plate or the like, and has hooks 7b, which can be engaged with the engaging grooves 10a, 10a of the decorative material 1 at the tips of the left and right legs 7a, 7a. 7b is formed.

Anchor metal fittings 7 are provided on both ends in the longitudinal direction of ferrite-based molded body 2 by hooks of left and right legs 7a, 7a.
7b, 7b are attached by engaging the engaging grooves 10a, 10a of the decorative finishing material 1. Next, a method of manufacturing a radio wave absorbing wall panel according to the present invention will be described step by step.

First, a plurality of decorative finishing materials 1 are laid one by one or a plurality of units on the bottom of the wall panel forming mold 12, and a plurality of ferrite-based materials are placed on the decorative finishing material 1. The molded body 2 is attached with an adhesive 3 so as to cover the entire surface of the ferrite-based molded body 2.

The bottom of the wall panel forming mold 12 has
Conventionally, a mold used for molding a PC board or the like may be used.

Next, the anchor fittings 7 are attached to the decorative finishing materials 1 one by one. Also, a plurality of reinforcing bar spacers 9 are provided at appropriate intervals on the ferrite-based molded body 2, and the reinforcing reinforcing bars 8 are arranged on the ferrite-based molded body 2 while being supported by the reinforcing bar spacers 9.

Next, a first layer of concrete (for example, NS concrete) to be the first layer of the concrete body 5 is cast on the decorative finishing material 1 and the ferrite-based molded body 2.

In this case, the concrete is a decorative finishing material 1,
It is also cast simultaneously in the gap 4 between the two. In addition, since this concrete is extremely expensive, it is preferable that the concrete be cast as thin as possible.However, at the lower end of the groove 13 formed in the peripheral portion, about 1/2 of the thickness of the entire panel is prevented so that concrete bubbles do not accumulate. It shall be cast to the extent.

Next, light-weight concrete is cast on the first-layer concrete body 5 as the second-layer concrete to be the second-layer concrete body 6. Then, after sufficiently curing, the mold 12 is released from the mold 12.

In the embodiment, concrete is cast in two layers. However, concrete may be cast in three to four layers or more depending on the thickness of the wall panel. .

[0029]

According to the method of manufacturing a radio wave absorbing wall panel according to the present invention, a gap capable of being filled with concrete is provided between adjacent decorative finishing materials and the inner surface of the gap is provided on the inner surface of the gap. The first layer of concrete that is rounded so as to enhance the filling property of the concrete and that is cast in this portion is a concrete that has high fluidity and is difficult to separate (for example, NS concrete). Thus, there is an effect that concrete can be reliably filled without gaps into every corner of the joint of the decorative finishing material.

Further, since the joint concrete can be poured at the same time as the concrete of the panel body, the work of separately filling joint concrete can be omitted, and the productivity can be remarkably improved.

Furthermore, since the concrete to be cast on the decorative finishing material and the ferrite-based molded article is divided into a plurality of layers, the amount of expensive first-layer concrete mixed with water-reducing material is reduced. There is also an effect that it can be reduced to the necessary minimum and the material cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a partially enlarged longitudinal sectional view of a radio wave absorbing wall panel.

FIG. 2 is a partially enlarged transverse sectional view of a radio wave absorbing wall panel.

FIG. 3 is a sectional view showing an example of a radio wave absorbing wall panel.

FIG. 4 is a sectional view showing a tile as an example of a decorative finishing material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Finishing material, 2 ... Ferrite type molded object, 3 ... Adhesive material, 4 ... Gap, 5 ... First layer concrete body, 6 ... Second layer concrete body, 7 ... Anchor fitting, 8 ... Reinforcing reinforcing bar , 9 ... reinforcing bar spacer, 10 ... notch, 11 ... recess, 12 ... panel forming form, 13 ... groove.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location E04G 21/02 103 E04G 21/02 103A E04H 9/14 E04H 9/14 Z (72) Inventor Kaneko Yoshiyuki 4-51, Otacho, Naka-ku, Yokohama-shi, Kanagawa Prefecture, Kashima Construction Co., Ltd.Yokohama Branch (72) Inventor Mikao Kobayashi 2-9-1-1, Tobita-Shi, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Inventor Shinnosuke Aiba, Kashima Construction Co., Ltd., 1-2-7 Moto Akasaka, Minato-ku, Tokyo (72) Inventor Yasuhiko Murai Kago Construction Co., Ltd., Tokyo Branch, 1-3-8 Moto-Akasaka, Minato-ku, Tokyo (72) Inventor Hiroshi Masukawa Kashima Construction Co., Ltd. Tokyo Branch, 1-3-8 Moto-Akasaka, Minato-ku, Tokyo (72) Inventor Takefumi Ogawara 1 Moto-Akasaka, Minato-ku, Tokyo Eyes third No. 8 Kashima Construction Co., Ltd. Tokyo Branch in (72) inventor Yamamoto Shinji Otemachi, Chiyoda-ku, Tokyo 1-chome sixth No. 1 Otemachi Building 3F Nihon Cement Co., Ltd. in

Claims (1)

(57) [Claims] 1. A plurality of decorative finishes are arranged side by side on the bottom of a wall panel forming form, and a plurality of ferrite-based molded bodies are mounted on the decorative finish while bonding them. In the method for manufacturing a radio wave absorbing wall panel in which concrete is cast on the ferrite-based molded article and the decorative finishing material, a void portion capable of filling concrete is provided between adjacent decorative finishing materials, A first layer of concrete, which is provided with a roundness on the inner surface of the void portion so as to enhance the filling property of the concrete, is cast on the decorative finishing material and the ferrite-based molded body, and The concrete of the first layer is poured separately from the concrete of the second layer to be poured on one layer of concrete, and the concrete of the first layer has a high fluidity and is hard to separate. A method of manufacturing a radio wave absorbing wall panel, wherein concrete is used, and ordinary lightweight concrete is used as the second layer of concrete.