JPS5853390Y2 - tile unit - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tile unit used in a tile casting method to obtain a tile-finished wall surface using a tile casting precast concrete slab or tile on-site installation method.

Generally, the tile units used in the tile pouring method are:
A grid-like joint frame with squares for inserting tiles is prepared in advance, and tiles are inserted and placed within each square, and these are attached to a tile sheet to connect multiple tiles. and is arranging.

However, in the past, due to variations in tile size, the size of the holes used for inserting tiles was configured to be slightly larger than the size of the tile, which caused the side surface of the tile to overlap when concrete was poured. There was a drawback that the cement paste entered the gap between the joint frame and the square side surface, and furthermore, this cement paste leaked onto the tile surface.

In addition, gaps may be created between the butting surfaces at the joints between tile units, and when using the on-site construction method, cement paste may leak between the tile sheet and the formwork through these gaps. When manufacturing precast concrete slabs, there was a risk that cement paste would leak between the tile sheet and the base plate, causing uneven tile surfaces after finishing and staining the joint surfaces.

For this reason, the applicant has already used a joint frame made of a thermoplastic synthetic resin material, heated and softened the joint frame after inserting the tile, and removed the gap between the tile side surface and the joint side surface of the joint frame. A tile unit has been developed and put into practical use.

However, in this case, an extra heating device for the joint frame is required, and the heating process and the above-mentioned gap removal process must be performed as a pre-process of the tile unit installation process, and the tile unit and tile unit The problem of cement paste leaking from the joint still remained.

The present invention has been developed by improving the conventional method in view of the above-mentioned circumstances, and includes a joint frame made of a swellable material with holes slightly larger than the tile size for inserting the tiles, and tiles arranged to be inserted into the holes. are connected with a tile sheet to form a tile unit, and when concrete is poured, the joint frame is swollen to remove and cover the gap between the tile side and the square side of the joint frame, as well as the gap between the tile units. This is what I am trying to do.

The configuration of the present invention will be explained below according to the embodiments shown in the drawings.

As shown in Figures 1 and 2, the present invention forms a joint frame 1 into a grid shape to form squares 2 for inserting tiles, and the size of the squares 2 for inserting tiles is determined by the size of the squares 2 for inserting tiles. Although the size of the joint frame 1 is slightly larger (0.5 to 1 mm) than the size of the joint frame 1, it is an essential requirement that it be made of a material that has swelling properties, and its molding requires the following steps as explained below. This invention requires a unique technology.

That is, the joint frame 1 is made of a material containing, for example, 20 parts by weight of soybean flour, 1 part by weight of bittern (coagulant), 1 part by weight of baking soda (NaHCO3), and 100 parts by weight of water.

The molding process involves kneading and boiling soybean flour, baking soda, and water, adding bittern, pouring into a mold (not shown) for forming the joint frame 1, and depressurizing the mixture in a frozen state. It is obtained by removing moisture (freeze-drying) and demolding.

As a result, a hard lattice-like joint frame 1 can be obtained.

In addition, joint frame 1 contains 100 parts by weight of bentonite as a swelling agent and 10 parts by weight of lucium carbonate as a filler.
It can also be obtained by placing a mixture of 0 parts by weight and 5 parts by weight of glycerin as a shape preservation agent into a grid-shaped mold and pressurizing it.

Next, a case will be described in which the joint frame 1 thus formed is adhered to the tile sheet 4 together with the tile 3 in the manner shown in FIG. 3 to obtain a tile unit A.

First, the underframe 5, which has a lattice shape similar to the joint frame 1 and has larger squares than the tiles 3, is placed on the base plate 6, and the tiles 3 are inserted within that square.

Then, the joint frame 1 is placed on the underframe 5, and one side is covered with a tile sheet 4 made of a plastic film or paper material such as polypropylene, polyvinyl chloride, polyester, etc. coated with an adhesive such as vinyl acetate. The joint frame 1 and the tile 3 are stuck together by pressing to form a tile unit A.

(For tile insertion) A is used by being fixed to the formwork 8 as a construction method at the site, or by being fixed to the base plate 8 in the factory as a precast concrete fitting.

In this state, as shown in FIG.
There is still a width t (0
, 5 to 1.0 mm) (see FIG. 3).

When water is sprinkled on the tile unit A during concrete pouring, the joint frame 1 absorbs water, swells, and comes into close contact with the side surfaces 3a of adjacent tiles.

In other words, the gap 9 mentioned above is removed.

Also, in the joint part 7 between tile unit A and tile unit A, the joint frame 1 located here swells,
If there is a gap 10 in the joint portion 7, this will be covered (see Fig. 5).

Therefore, during concrete pouring, cement paste does not leak out from the gap 9 between the tile side surface 3a and the square measurement surface 2a of the joint frame, and from the gap 10 between the joints 7 between the tile units A, resulting in a beautiful finish and a smooth finish. It is possible to obtain a wall surface that does not require treatment.

In order to swell the joint frame 1, water may be sprayed on it before concrete is poured as described above, but it is also possible to cause the joint frame 1 to swell by water contained in the concrete at the time of concrete pouring.

In short, in the present invention, a joint frame made of a swellable material in which a square for inserting a tile that is slightly larger than the size of the tile is formed, and a tile that is inserted and placed within the square of the joint frame are used to form a tile. During concrete pouring, the joint frame swells and adheres to the side surfaces of adjacent tiles. It is possible to absorb and remove or cover variations and gaps between joint parts between tile units, and prevent cement paste from entering the side gaps.

Therefore, there is no need for post-treatment due to leakage of cement paste.

Furthermore, the size of the squares for inserting the tiles in the joint frame can be set within a fairly wide range, making it easy to insert and arrange the tiles within the squares.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a part of the joint frame, Fig. 2 is a perspective view thereof, Fig. 3 is a vertical cross-sectional view for explaining the manufacturing procedure of the tile unit, and Fig. 4 is a plan view showing a part of the joint frame. FIG. 5 is a cross-sectional view showing a state where the joint frame is swollen from the state shown in FIG. 4. 3... Tile, 2... Square for tile insertion, 1... Joint frame, 4... Tile sheet.

Claims (1)

[Scope of utility model registration request] A joint frame made of a swellable material with holes for inserting the tiles that are slightly larger than the size of the tiles, and tiles inserted and arranged within the squares of the joint frames are attached to a tile sheet. A tile unit characterized in that the joint frame swells and comes into close contact with the side surfaces of adjacent tiles when concrete is poured.