JPH0340183B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing a concrete body with a tiled decorative surface, such as a tiled concrete wall body.

[Conventional technology]

BACKGROUND ART Concrete bodies with tiled decorative surfaces, such as tiled concrete walls, have conventionally been manufactured by a tile pre-installation method. That is, as shown in FIG. 6, tiles 3 are applied to the tile insertion recesses 2 of the sheet 1, which has tile insertion recesses 2 distributed at predetermined intervals on its surface, and adhesive 4 is applied to the surface thereof. This is attached and fixed to the formwork 5 made of plywood or the like. Next, the formwork 5 with the sheet 1 is arranged so that the tile mounting side face faces the concrete pouring surface, and concrete 6 is poured as shown in FIG. 7 is a reinforcing bar. After the concrete 6 has hardened, the formwork 5 is peeled off from the concrete placement surface along with the sheet 1, and the tiles 3 are pasted on the surface of the concrete 6, as shown in FIG.

However, when doing the above, it is necessary to apply adhesive 4 to each tile 3 and fit it into the tile insertion recess 2 of the sheet 1, which is very time-consuming and requires a lot of work in the formwork. When peeled off, the adhesive remains on the surface of the tile 1, causing a problem that the tile 3 is not beautifully finished. Furthermore, since the tile 3 is only attached to the tile insertion recess 2 with adhesive 4 and is not securely fixed, the tile 3 may come off or lift up due to vibration during concrete pouring. Coupled with the residual adhesive 4, the finished state of the tiles was poor.

In addition to the above-mentioned tile pre-installation method, there is also a method for manufacturing a concrete body with a tile decorative surface, in which multiple tiles are properly arranged on one side of the formwork, and the side edges of the adjacent tiles are connected with rod-shaped fasteners. The tiles are temporarily fixed to the formwork by being locked to the formwork using the locking edges, the formwork is placed so that the tiles face the concrete pouring surface, and after the concrete is poured, the rod-shaped There is a method of removing the formwork from the tile by releasing the lock between the locking tool and the locking piece, and then attaching the tile to the concrete surface. According to this basic method, the drawbacks of the above-mentioned tile pre-installation method can be eliminated. That is, according to this basic method, tiles are directly attached to the formwork using rod-shaped locking tools and locking pieces, concrete is poured using these, and then the above-mentioned rod-shaped locking tools and locking pieces are installed. By releasing the lock from the tile, the formwork is peeled off from the tile and the tile is attached to the concrete wall.
This eliminates the need for the above-mentioned tile pre-installation method of applying adhesive to each sheet and then attaching it to the formwork, which not only greatly simplifies the work of attaching tiles to the formwork, but also It is possible to obtain an extremely beautiful finished tile without residual adhesive adhering to the concrete, and without the tile falling off or lifting due to vibration during concrete pouring. Then, the tiles are attached to the formwork in the factory to stabilize dimensional accuracy and quality.
By assembling the formwork and pouring concrete at the site, dimensional accuracy and quality can be made uniform.

Conventionally, when implementing this basic method,
As a method of securing tiles to formwork,
The technology shown in the -35629 publication is used. That is, each tile is placed between multiple horizontal bars nailed to one side of the formwork, and the side edges of these tiles are locked to the formwork using locking means such as threaded rods or wood concrete. This is a technique for temporarily fixing the material to the formwork.

[Problem that the invention seeks to solve]

However, in the above-mentioned locking means, the horizontal bars are used for positioning the tiles, and the wooden brackets are used for fixing the tiles, so in order to position and fix the tiles, it is necessary to This requires two members, ie, a large number of parts, and a complicated structure. Furthermore, since the wood concrete protrudes beyond the tiles towards the concrete pouring side, when vibration is applied during concrete pouring, the wood concrete acts as a resistance to the flow of concrete, preventing the concrete from flowing smoothly and reducing work efficiency. It gets worse,
Quality deteriorates.

The present invention was made in view of the above circumstances, and an object thereof is to simplify the structure of the locking means and improve work efficiency.

[Means for solving problems]

In order to achieve the above object, the manufacturing method of the present invention includes, in the basic method, as the locking piece,
Using a device having a substantially U-shaped joint spacing forming part and a tile holding part extending horizontally outward from the upper ends of both vertical sides of the substantially U-shape, the joint spacing forming part is used to hold the joint spacing between two adjacent tiles. and the tile holding part is brought into contact with the back surfaces of both the adjacent tiles, and in this state, the rod-shaped locking tool is extended from the formwork to the joint gap forming part, and its tip is shaped like a substantially U-shape. The tile is temporarily fixed to the formwork by locking it to the horizontal side of the shape.

That is, according to this invention, among the locking pieces,
Fit the approximately U-shaped joint gap forming part into the gap between both adjacent tiles, and place the tile holding part of the locking piece extending from the upper ends of both vertical sides of this approximately U-shape onto the back surfaces of the above-mentioned adjacent tiles. While it is in contact with
The tile is secured to the formwork by extending a bar-shaped locking tool from the formwork and locking its tip to the horizontal side of the approximately U-shape. The joint spacing is formed by a locking piece, and
Both adjacent tiles mentioned above are positioned by the locking pieces.
Fixed.

This invention will be explained in detail based on examples.

〔Example〕

FIG. 1 shows an example of a formwork device used in an embodiment of the present invention. This formwork device attaches an elastic sheet 13 made of a rubber sheet or a sponge sheet to the surface of a formwork 12 made of plywood, and the joint 15 portion of the tile 14 in the formwork 12 with the elastic sheet 13, more specifically, the corner 14. A bolt insertion hole 16 is formed in a joint 15 portion corresponding to the portion. Tile mounting portions 17 between joints 15 in the elastic sheet 13 on the surface of the formwork
Attach a large tile 14 to each, and attach it to the formwork 12 using a T-head bolt (bar-shaped locking device) 18, a nut 19, a joint material (locking piece) 20 that also serves as a washer, and a fixture 21 that also serves as a washer. It is constructed by locking and temporarily fixing. The joint material 20 is the second
It has a rectangular planar shape as shown in the figure, and as shown in FIG. It has a horizontally extending tile holding part 20d. The joint spacing forming part 20a is fitted into the gap between the adjacent (adjacent) tiles 14, and the tile holding part 20d is brought into contact with the back surfaces of the two adjacent tiles 14. In this state, extend the T-head bolt 18 from the formwork 12 to the joint spacing forming part 20a, and tighten the threaded end 18a with the nut 19 to form approximately U.
It is locked to the horizontal side 20c of the letter shape. The fixture 21 is the third
As shown in the figure, it has a rectangular planar shape, and as shown in FIG. is temporarily fixed to the formwork 12. In FIG. 4, it is possible to paste tape or the like in order to close the space between the joint materials 20, and this will cause the concrete to fall into the formwork 12.
It may be possible to prevent it from leaking to the side. In particular, the above-mentioned formwork device is different from the tiles normally used for temporary fixing, and is large (for example, 450 x 450).
mm, 600×600 mm, 600×900 mm), it has the advantage that the number of bolts 18 etc. required for temporary fixing is reduced, and at the same time, the labor required for temporary fixing is also reduced.

When manufacturing a tiled wall body using this formwork 12, it is carried out as follows. That is, the formwork 12 is arranged so that the tiles 14 face the concrete pouring side, and concrete is poured. After concrete is poured, the T-head bolt 18 is turned to remove the nut 19 and joint material 20 from the T-head bolt 18, and then the fixture 21 is pulled out from the bolt insertion hole 16. This frees the formwork 12 and removes it from the tile 14. As a result, a tile wall with tiles 14 pasted on the surface of concrete 23 is obtained as shown in FIG. In this case, the joint material 20 of the formwork device remains on the joint portion between the tiles 14 and exhibits the effect of beautifying the joint. Further, although the nut 19 also remains on the back side of the joint material 20, it does not affect the aesthetic appearance of the joint at all. In FIG. 5, 24 is a reinforcing bar.

In addition, although the above-mentioned formwork apparatus attaches the tile 14 to the formwork 12 via the elastic sheet 13, when using a relatively soft formwork as the formwork 12,
The tiles 14 may be attached directly to the formwork 12. In this case, since the number of parts is reduced, the effort required to assemble the formwork device is reduced. Furthermore, the joint material 20 may be provided so as to cover almost the entire joint, rather than being provided partially. The tiles 14 are temporarily fastened using the T-head bolts 18 as shown in FIG.
The locking may be performed at the center of the side edge instead of at the corner of the side edge, and the state of locking does not matter. In short, the tile 14 only has to be firmly and temporarily fixed to the formwork 12.

〔Effect of the invention〕

As mentioned above, in this invention, as a locking piece,
A type having a substantially U-shaped joint spacing forming part and a tile holding part extending horizontally outward from the upper ends of both vertical sides of this substantially U-shape is used, and when the tile is attached to the formwork, it is not engaged. Since the retaining piece is used for positioning and fixing both adjacent tiles, it is possible to both position and fix the tile with just the retaining piece.
The number of parts is small and the structure is simplified. Furthermore, the tip of the bar-shaped fastener is fixed to the side of the approximately U-shaped joint gap forming part that is fitted into the gap between both tiles, and the tip of the bar-shaped fastener is placed in the concrete rather than the tile. Since there is no overhang on the sides, concrete flows smoothly when vibration is applied during concrete pouring, improving work efficiency and maintaining high quality.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an example of a formwork device used in an embodiment of the present invention, Fig. 2 is a plan view of a joint material used therein, Fig. 3 is a plan view of a fixture used therein, and Fig. 4 is a plan view of a fixture used therein. Fig. 1 is a schematic diagram of the formwork seen from the tile installation side, Fig. 5 is a block diagram of a tiled concrete wall formed using the formwork device of Fig. 1, and Fig. 6 is a diagram of the conventional formwork. Explanatory diagram of the frame device, No. 7
FIG. 8 and FIG. 8 are explanatory views of its use. 12...Formwork, 13...Elastic sheet, 14...
Tile, 16... Bolt insertion hole, 18... T-head bolt, 19... Nut, 20... Joint material, 21...
...Fixing fixture, 23...Concrete.

Claims (1)

[Claims] 1. Placing a plurality of tiles properly on one side of the formwork, and locking the side edges of the adjacent tiles to the formwork using rod-shaped locking tools and locking pieces, the tile is attached to the formwork. The formwork is placed so that the tile faces the concrete pouring surface, and after the concrete is poured, the rod-shaped locking tool and the locking piece are released from the tile to remove the mold from the tile. In the method of removing the frame and pasting the tile on the concrete surface, the locking piece includes a substantially U-shaped joint interval forming part and a tile extending horizontally outward from the upper ends of both vertical sides of the substantially U-shape. The joint spacing forming part is fitted into the gap between the two adjacent tiles, and the tile pressing part is brought into contact with the back surfaces of the two adjacent tiles, and in this state, the above-mentioned A concrete body with a tile decorative surface, characterized in that the tile is temporarily fixed to the formwork by extending a bar-shaped fastener from the formwork to the joint gap forming part and locking its tip to the substantially U-shaped horizontal side. manufacturing method.