JP2617404B2 - Method of manufacturing PC panel with radio wave absorbing material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a PC panel (precast concrete panel) with a radio wave absorbing material.

[0002]

2. Description of the Related Art In order to manufacture a PC panel having a surface finish made of a plate-like material such as a stone, a large ceramic plate, or a porcelain tile,
A method of arranging reinforcing bars on the back side of the plate-like material and casting concrete to integrate the reinforced concrete portion with the plate-like material is adopted.

[0003] The surface finish of P with such a plate-like material
With the C panel, in order to reduce the reflection interference of TV radio waves,
It is also common to provide a radio wave absorbing material by attaching a radio wave absorbing material such as a ferrite tile.

[0004] It is advantageous to attach such a radio wave absorbing material to the back surface of the plate material in order to improve the efficiency of radio wave absorption. Conventionally, as shown in FIG. Those treated with the back surface treatment material 2 made of an impermeable liquid material such as an epoxy resin are laid on a surface of a surface plate. On the back surface of the plate-like material, metal fittings (not shown) for mechanically joining with the concrete are mounted in advance.

[0005] Then, a radio wave absorbing material 3 is attached to a predetermined position on the back surface with a liquid adhesive 4 such as an epoxy resin so as to be continuous with each other. Then, after the adhesive 4 is hardened, the arrangement of reinforcing bars (not shown) and the placement of concrete 5 are performed, and the portion of the reinforced concrete 7 and the plate material 1 are integrated.

The back surface treatment material 2 causes the components of the concrete 5 to move into the plate material 1 and contaminates the plate material 1 or changes in dimensions such as thermal expansion of the plate material 1 and the concrete 5. It is used for waterproofing and insulation to avoid adverse effects due to differences.

Further, if the continuity of the radio wave absorbing material 3 is impaired in its arrangement, the radio wave absorbing property is reduced. The back surface treatment material 2 is made of a water-impermeable liquid material such as an epoxy resin and is the same material as the adhesive 4.
When the rear surface treatment material 2 is applied to the back surface treatment material 2, and the rear surface treatment material 2 is used to attach the radio wave absorbing material 3 to the plate material 1, the back surface treatment material 2 wraps around the side surface of the radio wave absorption material 3, (3) There is a possibility that the continuity of each other is impaired. Therefore, apart from the step of applying the back surface treatment material 2, a small amount of the adhesive 4 is applied to each surface of the radio wave absorbing material 3 and then attached.

[0008]

In such a conventional method, it takes a long time to apply the liquid adhesive 4 such as an epoxy resin to each of the radio wave absorbing materials 3, and it takes a predetermined time to cure. Requires a long curing time, so a PC that absorbs radio waves
This caused a delay in the process of manufacturing the panel.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to easily and quickly attach a radio wave absorber.
In addition, it is an object of the present invention to provide a method of manufacturing a PC panel with a radio wave absorbing material, which can simultaneously perform the back surface treatment of the plate-like material and the attachment of the radio wave absorbing material, thereby streamlining the construction.

[0010]

In order to achieve the above object, the present invention provides a method for manufacturing a PC panel using a plate material such as a stone, a large ceramic plate, or a porcelain tile as a surface finish.
On the back surface of the plate-shaped material, a pressure-sensitive adhesive sheet such as butyl rubber or acrylic resin is applied on both sides of a waterproof sheet made of synthetic resin or synthetic rubber. The main point is that radio wave absorbing material is continuously arranged on the back, and reinforcement and concrete are placed on the back side of the plate material with such radio wave absorbing material to integrate the reinforced concrete part with the plate material. It is.

[0011]

According to the present invention, since the pressure-sensitive adhesive sheet adhered to the back surface of the plate-like material has sufficient adhesiveness on both sides, the radio wave absorbing material is continuously applied to the back surface of the plate-like material via the pressure-sensitive adhesive sheet. After the application, the PC panel can be completed by arranging reinforcing bars and placing concrete immediately without taking a curing period. In addition, the adhesive material of the adhesive sheet has excellent adhesiveness with concrete,
After the concrete is hardened, the plate-like material and the concrete can be firmly joined.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a vertical sectional side view showing one embodiment of a method for manufacturing a PC panel with a radio wave absorbing material according to the present invention, and the same components as those in FIG.

In FIG. 1, reference numeral 1 denotes a plate-like material such as a stone, a large porcelain plate, a porcelain tile, etc., and an adhesive sheet 6 is adhered to the back surface of the plate-like material 1. The adhesive sheet 6 is formed by applying an adhesive material 6b such as butyl rubber or acrylic resin to both surfaces of a waterproof sheet 6a made of synthetic resin or synthetic rubber.

The sticking of the pressure-sensitive adhesive sheet 6 to the plate-shaped material 1 may be performed before the plate-shaped material 1 is laid on the surface of the platen, or may be performed later. In addition, you may make it mount | wear with the metal object to the back surface of the plate-shaped material 1. FIG.

Further, a radio wave absorber 3 such as a ferrite tile is disposed at a predetermined position from above the pressure-sensitive adhesive sheet 6 so that the radio wave absorber 3 adheres to each other by the pressure-sensitive adhesive sheet 6 and has a predetermined length. Is fixed so that continuity can be secured.

The adhesive sheet 6 also has an adhesive 6b on the surface opposite to the surface to be attached to the plate-like material 1, and has sufficient adhesiveness. Easy and reliable.

After that, a reinforcing bar (not shown) and concrete 5 are immediately placed without taking a curing period, and when this is hardened, the adhesive material of the adhesive sheet 6 has excellent adhesion to concrete and is strong. Then, the plate material 1 is joined to the concrete 5 to obtain a PC panel in which the portion of the reinforced concrete 7 and the plate material 1 are integrated.

[0018]

As described above, the method of manufacturing a PC panel with a radio wave absorbing material according to the present invention is simple in the method of manufacturing a PC panel using a plate material such as a stone, a large ceramic plate, or a porcelain tile. It is possible to install the radio wave absorbing material quickly and with continuity, and at the same time, it is possible to simultaneously process the backside treatment of the plate-like material and to install the radio wave absorbing material, and it is also possible to perform concrete without waiting time, so great workability And the manufacturing time can be shortened.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing one embodiment of a method for manufacturing a PC panel with a radio wave absorbing material of the present invention.

FIG. 2 is a vertical sectional side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Plate material 2 ... Back surface treatment material 3 ... Electromagnetic wave absorbing material 4 ... Adhesive 5 ... Concrete 6 ... Adhesive sheet 6a ... Waterproof sheet 6b ... Adhesive material 7 ... Reinforced concrete

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H01Q 17/00 H01Q 17/00 H05K 9/00 H05K 9/00 M

Claims (1)

(57) [Claims] 1. A method for manufacturing a PC panel having a surface finished with a plate material such as a stone material, a large ceramic plate, a porcelain tile, etc., wherein a back surface of the plate material is provided on both sides of a waterproof sheet made of synthetic resin or synthetic rubber. Adhering an adhesive sheet coated with an adhesive material such as butyl rubber or acrylic resin that has excellent adhesiveness to concrete, pasting the radio wave absorbing material on this adhesive sheet, and forming a plate with such a radio wave absorbing material A method for manufacturing a PC panel with a radio wave absorbing material, comprising: arranging reinforcing and concrete on a back side of a material to integrate a reinforced concrete portion and a plate-like material.