JP2000213144A - Concrete molding plate tiled execution joint filler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete molding plate-tiled execution joint filler capable of being easily manufactured in consideration for the adjustment of cement wash absorption based on condition such as size of a tile, thickness, joint inter val or the like. SOLUTION: A sheet-like structure 1 having high water absorbing fiber 2 as main composition is constituted of mixed spinning obtained by mixing water absorption adjusting fiber 3 with the high water absorbing fiber 2 at the favourable ratio. Water content of cement wash in cement is absorbed by the sheet-like structure 1. A plastic foam body 4 is connected over the whole surface of the sheet-like structure 1 to promote molding efficiency to a required form of joint filler by penetration work or the like, volume expansion change of the sheet-like structure 1 is properly controlled by the plastic foam body 4 and, at the same time, it is adhered to the side of a tile by elastic deformation of the plastic foam body 4, and a packing function for preventing the leakage of the cement wash is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint material used when a tile is applied by a pre-adjustment method at the time of placing concrete in the production of a concrete molded plate tiled for an exterior wall of a building.

[0002]

2. Description of the Related Art In order to manufacture a tiled concrete molding plate by an advance construction method, a tile is fitted downward into a section partitioned by a joint material, concrete is poured from above, and the mold is released after curing. It is performed by

[0003] In the case of manufacturing by such a construction method, there is a problem that the noro component of the concrete (liquid containing cement) leaks out from between the tile and the joint material when the concrete is poured, and stains the side and surface of the tile. .

Conventionally, to solve the above problem,
For example, JP-A-6-143215 and JP-A-7-143
No. 243251 discloses that, when both are used as joints between tiles, since each rod is filled vertically and horizontally as a bar, even if a water-absorbing or water-permeable material is used for the joint material, However, it takes a lot of time and effort to fill it, and it is considerably expensive in terms of cost. Also, JP-A-6-180054 and JP-A-9-3288
Japanese Patent Publication No. 82 is directed to prevent the slag leakage of concrete slag depending on how the tile and the joint material are fixed irrespective of water absorption or water permeability.

[0005]

Now, in the absorption of slag by the joint material for preventing leakage of the slag from between the tile and the joint material, the size, thickness, and further, the joint spacing of the tiles are considered. It is preferable to adjust the absorption depending on the conditions, but in the techniques disclosed in the above publications, any consideration is given to the absorption of slag depending on the size, thickness, joint spacing, etc. of the tiles. It has not been.

It is an object of the present invention to provide tile size, thickness,
An object of the present invention is to provide a joint material for tiled concrete molding plate that can be easily manufactured in consideration of adjustment of slag absorption depending on conditions such as joint spacing.

Another object of the present invention is to significantly reduce the time and effort of filling vertically and horizontally between tiles, which is a drawback of a bar joint, as one of the problems to be solved. However, the use of the joint material according to claims 1 to 5 of the present invention as a bar joint does not hinder the gist of the present invention.

[0008]

According to the first aspect of the present invention, there is provided a joint material for tiled concrete molding plate,
It is characterized in that a sheet-like structure made of superabsorbent fibers is formed into a required shape.

[0009] According to the joint material having such a configuration, the highly water-absorbing fiber absorbs the slag of concrete and prevents the slag from leaking from between the tile and the joint material. In addition, since it is a sheet-like structure made of super-absorbent fibers, the size, thickness, and joint of tiles can be adjusted by adjusting the amount of super-absorbent fibers and the thickness of the sheet-like structure during production. According to the conditions such as the interval, it is possible to retain the noro absorbability, and it is possible to more effectively prevent the noro from leaking.
Further, since the sheet-like structure is formed into a required shape as a joint material, manufacture is easy.

[0010] The jointing material for tiled concrete molding plate according to claim 2 is characterized in that the highly water-absorbing fiber is mixed with a fiber for adjusting the water absorption to be a material for the sheet-like structure. Features.

According to the joint material having the above-described structure, by changing the mixing ratio of the superabsorbent fiber and the fiber for adjusting the water absorption, a predetermined thickness as the joint material can be secured. Joint materials having different water absorption can be obtained.

[0012] The joint member for tiled concrete molding plate according to claim 3 is characterized in that a plastic foam is bonded to one surface of the sheet-like structure.

According to the joint material having the above-described structure, the plastic foam is bonded to one surface of the sheet-like structure made of fiber, so that the workability when punching into a required shape as the joint material is improved. Enhanced. In addition, the plastic foam absorbs a dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. In addition, by suppressing the volume expansion of the sheet-like structure that has absorbed the slag to a minimum, the joint dimensional accuracy is increased, and the adhesive strength of the tile is stabilized. In addition, by locating the plastic foam on the concrete surface side, the releasability between the concrete and the joint material is improved. Further, an uneven pattern may be provided to the plastic foam.

According to a fourth aspect of the present invention, there is provided a joint member for tiled concrete molding plate, wherein the sheet-like structure is joined to the other surface of the plastic foam.

According to the joint material having such a configuration, the workability when punching into a required shape as the joint material is enhanced. In addition, the plastic foam absorbs a dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. Further, the volume expansion of the sheet-like structure that has absorbed the slag is suppressed to a minimum.

The joint member for tiled concrete molded plate according to claim 5 is characterized in that a plastic foam is bonded to both surfaces of the sheet-like structure.

According to the joint material having such a configuration, the workability in stamping into a required shape as the joint material is enhanced. In addition, the plastic foam absorbs a dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. Further, the volume expansion of the sheet-like structure that has absorbed the slag is suppressed to a minimum.

According to a sixth aspect of the present invention, there is provided a joint material for tiled concrete molding plate, wherein a plastic film is bonded to at least one surface of the sheet-like structure which is to be a concrete bonding surface.

According to the joint material having such a configuration, since the plastic film is bonded to one surface of the sheet-like structure serving as the concrete bonding surface, the releasability between the concrete and the joint material is improved. Further, the fibers of the sheet-like structure can be prevented from remaining in the concrete. In addition, providing the plastic film with a concavo-convex pattern does not disturb the gist of the present invention.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a joint material for tiled concrete molding plate according to the present invention will be described.
This will be described in detail with reference to the drawings.

FIG. 1 shows a first embodiment of a joint material according to the present invention. In this example, the sheet-like structure 1 is made of the superabsorbent fibers 2. The sheet-like structure 1 is formed into a required shape as a joint material, for example, a bar shape or a lattice shape as described later.

As the high water-absorbing fiber 2, a fiber capable of absorbing water at least 10 times its own weight is most suitable. For example, carboxylated cellulose, acrylic acid derivative polymer, polyacrylonitrile derivative polymer, N -Fibers made of a superabsorbent polymer such as an alcoholic polymer having vinylacetamide as a main monomer.

Examples of the form of the fiber include a fiber made of only the superabsorbent polymer, a core-sheath or a side-by-side conjugate fiber using a core material or another fiber partially.

Examples of the sheet-like structure 1 include a woven fabric, a knitted fabric, and a nonwoven fabric made of the superabsorbent fiber 2. Examples of the nonwoven fabric include spunbond, meltblown, and a structure in which short fibers are entangled. Preferably, the structure in which short fibers are entangled is easily mixed with other fibers and molded.

According to the joint material having such a configuration, the slag of concrete generated when the concrete is cast is absorbed by the highly water-absorbing fiber 2, and leakage of the slag from between the tile and the joint material is prevented. You.

Further, since the joint material is made of the sheet-like structure 1 made of the highly water-absorbent fiber 2, the production of the joint material depends on conditions such as the amount and thickness of the highly water-absorbent fiber and the joint interval. And the superabsorbent fibers 2 can be distributed in a uniform amount throughout the sheet-like structure 1, so that the joint material formed by the sheet-like structure 1 Since the water absorption becomes uniform, the slag can be absorbed evenly, and the spill can be more effectively prevented from leaking.

FIG. 2 shows a joint material according to a second embodiment of the present invention. In this example, the sheet-like structure 1
As a material of the above, a mixture of the superabsorbent fiber 2 and the fiber 3 for adjusting the water absorption for adjusting the water absorption is used.

As the fiber 3 for adjusting the water absorption,
Natural fibers such as cotton, rayon, nylon, polyester,
Synthetic fibers such as polyolefin are used. Further, when the sheet-like structure 1 is made of a non-woven fabric, a method of forming short fibers into a web with a card and entangled with a needle punch, and / or bonding and bonding the sheeted fibers together to form a main fiber constituting the non-woven fabric A heat-fused fiber using a polymer having a lower melting point, for example, a copolyester or polyethylene, is mixed and heat-fused to obtain a sheet-like structure 1.

The rayon fiber is rich in water absorbency and inexpensive, functions as a bulking agent, and the polyester fiber is effective for improving the strength. As the fiber 3 for adjusting the water absorption, it is particularly preferable to mix the fiber 3 with rayon fiber, polyester fiber and heat fusion fiber. The mixing ratio of the superabsorbent fibers 2 and the fibers 3 for adjusting the water absorption is determined in consideration of the water absorption of the slag according to conditions such as the size, thickness, and joint spacing of the tile. There is no particular limitation.

According to the joint material having the above structure, the predetermined thickness required for the joint material can be secured by changing the mixing ratio of the superabsorbent fibers 2 and the fibers 3 for adjusting the water absorption. In the meantime, a joint material having different water absorption, that is, a joint material having different water absorption depending on other conditions is obtained.

FIG. 3 shows a joint material according to a third embodiment of the present invention. In this example, the sheet-like structure 1
The plastic foam 4 is joined to one surface of the substrate. The plastic foam 4 is preferably made of a semi-rigid polyolefin resin having a closed cell structure. By joining the plastic foam 4, there is an advantage that the workability at the time of punching into a grid shape, a strip shape, a rod shape, or the like as a joint material is improved, and the cost is inexpensive and advantageous. In addition, the plastic foam 4 absorbs a dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. Also,
The volume expansion of the sheet-like structure 1 that has absorbed the slag is suppressed to a minimum.

The material of the plastic foam 4 is preferably made of polyethylene resin. Expansion ratio is 5
It is about 40 times, and 10 to 30 times of the range is preferable. The sheet thickness of the sheet-like structure 1 is 1 to 10 m.
In the range of about m, preferably 1.5 to 5 mm.

The means for joining the plastic foam 4 to one surface of the sheet-like structure 1 may be adhesion using a general adhesive, but any one of the plastic foam 4 and the sheet-like structure 1 may be used. Alternatively, a hot-melt type adhesive may be applied to one side in advance and integrated by a heat fusion method. More preferably, a frame laminating method can be adopted by utilizing the heat-fusing properties of the heat-fusible fibers in the sheet-like structure 1 and the heat-fusing properties of the foamed polyethylene.

FIG. 4 shows a joint material according to a fourth embodiment of the present invention. In this example, based on the third embodiment, the sheet-like structure 1 is further joined to the other surface of the plastic foam 4, that is, the sheet-like structures 1 1 have a three-layer structure.

According to the joint material configured as described above, the workability when punching into a required shape as the joint material is enhanced. In addition, the plastic foam 4 absorbs the dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. In addition, the volume expansion of the sheet-like structure 1 that has absorbed the slag is suppressed to a minimum.

FIG. 5 shows a joint material according to a fifth embodiment of the present invention. In this example, a plastic foam 4 is bonded to both sides of a sheet-like structure 1 to form a three-layer structure.

According to the joint material configured as described above, the workability when punching into a required shape as the joint material is enhanced. In addition, the plastic foam 4 absorbs the dimensional accuracy error of the tile by elastic deformation and adheres tightly to the tile side surface, thereby holding the tile more effectively. In addition, the volume expansion of the sheet-like structure 1 that has absorbed the slag is suppressed to a minimum.

6 to 8 show sixth to sixth embodiments according to the present invention.
This shows the eighth embodiment, which is a structure in which the plastic film 5 is adhered to the side to which cement is adhered at the time of placing concrete, in each of the structures of the first to fourth embodiments.

First, in the sixth embodiment shown in FIG. 6, a plastic film 5 is adhered to one surface side of the sheet-like structure 1 so as to face the cement. in this case,
The sheet-like structure 1, that is, the entire joint material is easily peeled off from the surface of the hardened cement.

The material of the plastic film 5 includes polyester, polyamide, polyacryl, polyethylene,
Any material can be used as long as it is formed into a film with a resin such as polypropylene. Preferably, a film made of polyester or polypropylene has good releasability from the cement mortar after curing, and also has good workability when punching into a lattice. The film thickness is in the range of about 10 to 50 μm, preferably 15 to 30 μm if possible.

The means for adhering the plastic film 5 to one surface of the sheet-like structure 1 may be adhesion using a general adhesive, but after applying a hot-melt adhesive to one surface of the film in advance, It can also be bonded by a heat fusion method.

Next, a seventh embodiment shown in FIG. 7 is based on the sixth embodiment shown in FIG.
This is a structure in which the plastic foam 4 is joined to the other surface. That is, the plastic film 5 and the plastic foam 4 are joined to both surfaces of the sheet-like structure 1 to form a three-layer structure.

The eighth embodiment shown in FIG. 8 is based on the seventh embodiment shown in FIG. It is a structure.

The first to eighth embodiments have been described above. For example, the joint material of the third embodiment shown in FIG. As shown in FIG. 10, a tile integrated product can be manufactured by an advance construction method.

As shown in FIG. 9, first, the tile 13 is set in the space of the joint material 6 formed by processing the sheet-like structure 1 according to the present invention into a lattice shape, and then the adhesive layer 12 is provided for temporary fixing of the tile. By integrating the film 11 on the tile surface,
The cross-sectional shape shown in FIG. 10 is manufactured.

When a dimensional accuracy error occurs in the tile 13 during the manufacturing process, the error is absorbed by the plastic foam 4 constituting the joint material 6 by being appropriately elastically deformed. That is, as shown in FIG. 10, the slight gap c between the tile side surface 13a and the joint material 6 caused by the dimensional error of the tile 13 is caused by the close contact of the plastic foam 4 absorbing the gap with the tile side surface 13a. Sealed by.

The tile integrated product thus prepared is:
It is set in the formwork in preparation for cement casting by concrete casting.

At the time of casting the cement mortar into the mold, the lattice joint material 6 of the integrated tile functions suitably as follows. Since the plastic foam 4 is elastically adhered to the tile side surface 13a, the leakage of the slag in the cement from the gap c is almost prevented by the packing function. The sheet-like structure 1 by the fibers 3 for adjusting the water absorption. Although the sheet-like structure 1 may expand in volume due to slime absorption,
The swelling of the sheet-like structure 1 is appropriately suppressed by the plastic foam 4.

After the cement has hardened, it is removed from the form as a tiled concrete molding plate, and then the joint material 6 and the tile temporary fixing film 11 are integrally peeled and removed. At this time, since the plastic foam 4 joined to one surface of the sheet-like structure 1 is on the concrete surface side, the joint agent 6 can be easily peeled off from the concrete surface. As for the appearance of the tiled concrete molded plate manufactured in this way, no hardened cement slag attached to the side surface or the surface of the tile 13 is found, and an extremely good one is obtained. This eliminates the need for a troublesome work of scraping off the sticking stick as in the related art.

In the present invention, as a typical example, the joint material shown in FIG.
And the thing which precedes and constructs the tile integrated material as shown in FIG. 10 is shown, but the shape of the joint material is not limited to the lattice shape as a matter of course, and is suitable as a “strip-shaped” or “rod-shaped” joint material. Can be cut to use. It is also an advantage that the processing into such shapes is good. When used as a strip-shaped or rod-shaped joint material, for example, the size of one side of a square cross section is preferably 5 to 10 mm, and in that case, the sheet thickness of the sheet-like structure 1 described in each of the above embodiments The dimensions are preferably about 1 to 2 mm.

[0051]

As described above, the joint material for tiled concrete molding plate according to the present invention has a basic structure of a sheet-like structure mainly composed of superabsorbent fibers, and has a uniform thickness and amount. Since it can be processed freely, there is an advantage that the workability between the tiles is good, and that the amount of water absorbed by the excess water contained in the cement can be adjusted. A laminated structure in which a plastic foam is bonded to one surface of such a sheet-like structure can also be used. Since it adheres closely, it is effective to function as a packing member for preventing spillage.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a first embodiment of a joint material according to the present invention.

FIG. 2 is a side sectional view showing a joint material according to a second embodiment of the present invention.

FIG. 3 is a side sectional view showing a third embodiment of a joint material according to the present invention.

FIG. 4 is a side sectional view showing a joint material according to a fourth embodiment of the present invention.

FIG. 5 is a side sectional view showing a joint material according to a fifth embodiment of the present invention.

FIG. 6 is a side sectional view showing a joint material according to a sixth embodiment of the present invention.

FIG. 7 is a side sectional view showing a joint material according to a seventh embodiment of the present invention.

FIG. 8 is a side sectional view showing an eighth embodiment of a joint material according to the present invention.

FIG. 9 is an exploded perspective view showing a case where the joint material of the third embodiment shown in FIG. 3 shown in FIG.

FIG. 10 is an assembled side sectional view of the integrated tile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet-like structure 2 Highly water-absorbing fiber 3 Fiber for adjusting water absorption 4 Plastic foam 5 Plastic film 11 Tile temporary fixing film 12 Adhesive layer 13 Tile 13a Tile side surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Ota 4- 15-4 Asakusabashi, Taito-ku, Tokyo Marunouchi Chemical Works Co., Ltd. (72) Inventor Masaaki Honda 4- 15-4 Asakusabashi, Taito-ku, Tokyo Marunobu Chemical Co., Ltd. (72) Inventor: Naoto Momoi 1-2-2 Umeda, Kita-ku, Osaka, Osaka Prefecture

Claims (6)

[Claims] 1. A joint material for tiled concrete molding plate, wherein a sheet-like structure made of a super absorbent fiber is formed into a required shape. 2. The concrete-molded plate-tiling work according to claim 1, wherein a fiber for adjusting the water absorption is mixed with the superabsorbent fiber to obtain a material for the sheet-like structure. Jointing material. 3. The joint material for tiled concrete molding plate according to claim 1, wherein a plastic foam is joined to one surface of the sheet-like structure. 4. The joint material according to claim 3, wherein the sheet-like structure is joined to the other surface of the plastic foam. 5. The joint material for tiled concrete molding plate according to claim 1, wherein a plastic foam is bonded to both surfaces of the sheet-like structure. 6. A plastic film is bonded to at least one surface of the sheet-like structure serving as a concrete bonding surface.
The jointing material for tiled construction of a concrete molded plate described in the above.