JP2005273320A - Unit tile and execution structure thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unit tile capable of preventing falling of the tile even if the tile is peeled, and reinforcing the joint formed between mutual tile units to strengthen the connection of mutual units. <P>SOLUTION: The tile unit is formed of a unit 1 constituted of a plurality of tile sheets 10 and a reticular body 2. The reticular body 2 has a substantially same area with the tile unit 1 and it is made of a synthetic resin fiber as a raw material. In the back face of the unit 1 of the reticular body 2, the right and left parts and the upper and lower parts are shifted respectively by a specified distance and fixedly bonded with an adhesive to unify the unit. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a unit tile attached to an outer wall surface of a reinforced concrete building, for example, and a construction structure of the unit tile.

Conventionally, as a method of tiling on the outer wall surface of a reinforced concrete building or the bottom surface of a beam, a so-called wet method is known, in which a tile is attached to the concrete outer wall, which is the foundation, and tiled with mortar. In this case, this tile may come off. The cause of this peeling is insufficient adhesion strength between the tile and the mortar, and insufficient adhesion strength between the concrete wall and the mortar. Therefore, the tile may peel off together with the mortar. It has been pointed out that such a lack of adhesion strength, apart from construction problems due to poor construction, leads to a severe deterioration of the adhesion strength over time due to the severe environmental conditions of the outer wall of the building. For example, the tiles on the outer wall are constantly exposed to direct sunlight and cold, and thus continuously expand and contract. On the other hand, the concrete wall has a tile attached to the surface, so the influence of direct sunlight and cold is small. Therefore, there is a difference in the behavior between the tile and the concrete wall, cracking occurs in the tensioning mortar itself, or peeling occurs between the tile and the tensioning mortar, or between the tensioning mortar and the concrete wall. If rainwater or the like enters the surface, the cracks spread or peel off due to freezing of the water, resulting in the problem of tiles falling off.
In order to solve such a problem, it has been conventionally proposed to attach a net-like body to a unit tile to facilitate the construction. (Patent Documents 1 to 4).
JP-A-9-264062 Japanese Patent Laid-Open No. 11-93376 JP 11-81619 A Japanese Patent Laid-Open No. 9-60253

However, these proposals have the following problems. In Patent Document 1, since a connecting material receiving portion is required on the back of the tile, it cannot be used unless it is a special tile. Moreover, since patent document 2 uses a wire mesh, when this wire mesh rusts, there exists a possibility that the expansion | swelling of the wire mesh by this rust will cause a crack in a mortar and will increase peeling of a tile. In Patent Document 3, since stainless steel is used as the material of the mesh body, the advantage that it is difficult to rust is recognized. However, it takes time to process the mesh body, and the expansion rate between the stainless steel mesh body and the mortar is considerably different. It is not suitable for outer walls that are exposed to sunlight.
These problems are solved in Patent Document 4, in which the mesh is made of an epoxy-based synthetic resin, and the tiles constituting the unit are each attached to the back of the mesh. In order to prevent the tile from peeling off even if the tile is peeled off, a method of fixing the mesh body to the base with a pin is proposed. This proposal has been put to practical use because it has an excellent effect, but as a construction process, there is a problem that it takes time and effort to fix the net-like body to the ground with pins as described above. Further, although the tiles constituting the units are connected to each other, the units are not sufficiently connected to each other. As described above, as one of the causes of tile peeling, there is a difference in the behavior of the tile and the concrete wall due to repeated expansion and contraction, and if the connection of the tiles is strengthened for each unit, the units are connected to each other. As a result, stress is concentrated there, and cracks are likely to occur at the joints between the units.

  Therefore, the inventor of the present application paid attention to a method of laying a net-like body in the tensioning mortar and preventing the reinforcement of the tensioning mortar and the peeling of the tile, and conducted an experimental study. However, laying a net-like body in the tensioning mortar in this way is time-consuming in the construction method in which the tensioning mortar is applied to the concrete base, the net-like body is laid before the mortar solidifies, and the tile is attached. In addition, a large number of work processes can lead to poor construction.

  Therefore, an object of the present invention is to propose a unit tile in which a net is pasted on a tile in advance to facilitate construction.

  A feature of the unit tile according to the present invention is that a unit is constituted by a plurality of tiles, and a net-like body made of synthetic resin fibers is fixed on the back surface of the unit with substantially the same area as the unit. The body is located on the back surface of the unit so as to be shifted from side to side and up and down.

The unit tile construction structure according to the present invention is characterized in that the net of the unit tile is embedded in a mortar.
Furthermore, another feature of the construction structure of the unit tile is that the unit tile has an insulating portion that absorbs expansion and contraction between the units between a plurality of units.

  The effect of the present invention is that a net is fixed to a unit composed of a plurality of tiles, so that even if the tile is peeled off, the tile can be prevented from falling, and the net is shifted and fixed. Therefore, the joint portion formed by the tile units can be reinforced, and the connection between the units is reinforced. In addition, according to the construction structure of the unit tile, the tension mortar is reinforced by the net, so that the tension mortar can be prevented from cracking due to the stress caused by the difference in behavior between the tile and the concrete wall. Thus, since the joint portion is also reinforced, it is possible to suppress the occurrence of cracks in the mortar at the joint portion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A structure of a unit tile according to the present invention will be described. As illustrated in FIG. 2 and the mesh body 2 shown in FIG. The tile 10 is a thin one called 45 two (length and width 45 mm × 95 mm), and in the illustrated example of FIGS. 1 to 4, 18 tiles are arranged in 3 rows × 6 rows to form a square and form one unit. In addition, although not shown, the surface of the tile 10 is pasted with a piece of paper to form a unit.

  As shown in FIGS. 3 and 4, the reticulate body 2 has substantially the same area as the tile unit 1 composed of 18 sheets, and is made of synthetic resin fibers. The net-like body 2 is fixed by adhering it with an adhesive on the back surface of the unit 1 by shifting it by a predetermined length from left to right and up and down, and this unit is integrated. As the synthetic resin material of the net-like body 2, it is appropriately selected and applied from polyvinyl resins such as vinylon, polyaramides, polyesters, and polyamides. In terms of strength, an aramid resin is higher than vinylon, but vinylon has a hydroxyl group (—OH) structurally and has good hydrophilicity. Further, the fineness of the mesh 2 is 2000 dtex (decitex), and a so-called triaxial mesh sheet in which fibers are crossed so that equilateral triangles are formed as shown in FIG. And as for the size of the mesh, the length of one side of the equilateral triangle may be in the range of 15 mm to 30 mm, preferably about 20 mm. The size of the mesh is determined from the adhesion between the back foot of the tile 10 and the mortar 4 (FIG. 5). When the mesh is small, the adhesion between the back foot of the tile 10 and the mortar 4 is shown. From the viewpoint of properties, the fiber itself must be thinned, but if the fiber is thinned, a problem in strength occurs in the fiber itself. On the contrary, if the mesh is enlarged, it is necessary to thicken the fiber due to the problem of fiber strength. An adhesive that bonds the mesh 2 to the back surface of the unit 1 is an epoxy type.

  The net-like body 2 is attached to the back surface of the unit 1 so as to be shifted left and right and up and down. The reason is that the margin of the mesh body 2 to the adjacent tile unit 1 needs to be about 10 mm. If the joint width of the tile is 5 mm, there is a problem if the mesh body 2 is less than 15 mm. is necessary. However, as described later, when the displacement of the mesh body 2 exceeds 20 mm, the work of embedding the mesh body in the mortar 2 is difficult.

  Next, the construction structure of the unit tile will be described. As shown in FIG. 5, the mortar 4 is applied to the surface of the concrete wall 3, and the net 2 attached to the back surface of the unit 1 is It is embedded in this mortar. And the protrusion part of the net-like body 2 which has shifted and attached to the tile 10 strengthens the connection between the units 1 and 1. Further, when the displacement of the mesh body 2 with respect to the tile 10 exceeds 20 mm, for example, the end of the mesh body 2 protrudes from the rightmost tile 10 in FIG. 5, but this protruding portion exceeds 20 mm and becomes a tension mortar. 2 is difficult to embed.

  Furthermore, the unit tile has an insulating portion 5 interposed between the units 1 to absorb expansion and contraction between the units. For example, the unit of 45 two thin tiles is 30 cm square, but the insulating portion 5 is provided with about 10 to 15 units as a guide. This insulating portion 5 is a so-called expansion / contraction adjustment joint, and is a portion that absorbs expansion / contraction between the tile units 1, and has a width of about 10 mm to 15 mm. As a material, a sealing material such as polysulfide is applied. The In addition, although the net 2 attached to the back surface of the tile 10 that is in contact with the insulating portion 5 like the tile 10 of the unit 1 located on the left side of FIG. 5 is located in the tile surface due to the shift, When this net-like body protrudes from the edge of the tile 10 and comes into contact with the insulating portion 5, the end-extruded net-like body 2 is cut off.

  As an example of use of the invention, it is used as an exterior decoration for the outer wall, beam bottom, etc. of a concrete building.

Top view of tile unit Top view of the mesh Bottom view of net unit bonded to tile unit Plan view of a net unit bonded to a tile unit Sectional view showing the tile unit installed on a concrete wall

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Unit which consists of several tiles 10 Tile 2 Net-like body 3 Concrete wall 4 Tightening mortar 5 Insulation part (extension adjustment joint)

Claims (3)

It consists of a unit composed of multiple tiles, and a net that is fixed on the back of this unit and has almost the same area as this unit, and is made of synthetic resin fibers.
The unit tile according to claim 1, wherein the mesh body is fixed on the back surface of the unit while being shifted from side to side and up and down.   2. The unit tile construction structure according to claim 1, wherein the unit tile net is embedded in a mortar.   The unit tile according to claim 1, wherein an insulating portion that absorbs expansion and contraction between the units is interposed between the plurality of units.

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