JP2003206613A - Expansion-joint structure of tiling finishing and building method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of a tile expansion joint, which has excellent dimensional accuracy and positional accuracy without depending upon the skill of a plasterer and a tiling craftmanship, which can be used as the tile expansion joint surely and the construction of which is managed easily, and its building method. <P>SOLUTION: In the expansion-joint structure of a tiling finishing carried out on a wall surface composed of a plurality of wall panels, a backup material 7 is fixed onto the surface of a sealing material 3 placed on a joint between the wall panels corresponding to an expansion joint section, the backup material 7 is projected from a panel surface and the finishing height of the backup material 7 is placed near the finishing surface of a tile adhesive 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a stretchable joint having a tiled finish to be applied to a wall surface composed of wall panels such as an ALC panel and an extruded panel, and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, as a stretchable joint structure of tiled finish applied to a wall surface composed of wall panels and a construction method thereof, one shown in FIG. 8 (A) is known (first
Known example). That is, the wall panels 1 are butted against each other in parallel to form joints between the wall panels, and the joints are formed in the first joints.
A backup material 2 and a first sealing material 3 are provided. In addition, the expansion joints 10 of the tiles 6 are provided so as to correspond to the joints of the wall panels, and the base treatment material 4 and the adhesive material 5 for the tiled finish are cut off between the wall panels.

When constructing a stretchable joint for the tile, for example, as shown in FIGS.
There is a method in which the adhesive material 5 is applied so as not to straddle between the wall panels and then tiles are attached.

Further, as shown in FIG. 8 (D), after the surface treatment material 4 and the adhesive material 5 are applied across the wall panels, the surface treatment is performed along the joints of the wall panels with a metal iron or the like. Material,
There is a method in which the adhesive material is cut and scraped off, the edge is cut as shown in FIG. 8E, and then the tile is attached.

In the second known example, as shown in FIG. 9 (A), the first sealing material between the wall panels has a finished height that is the same as or slightly lower than the wall panel surface height. The second backup material 7 is attached to the surface of 3.

When constructing the expansion and contraction joint of the tile, for example, as shown in FIGS. 9B, 9C and 9D, the second backup material 7 is provided on the surface of the first sealing material 3 between the wall panels. After mounting, applying the base material 4 and the adhesive material 5 across the wall panels, the base material 4 and the adhesive material 5 on the surface of the second backup material are applied to the joints of the wall panel with a metal iron or the like. There is a method of cutting, scraping along, and then attaching tiles.

On the other hand, in the case where a wall surface composed of a plurality of wall panels is to be tiled, tile expansion joints are provided at positions corresponding to all joints between the wall panels, and only tiles between specific panels are jointed. Tile expansion joints may be provided correspondingly, which is mainly due to the difference in the method of attaching wall panels to the building frame.

Regarding the relationship between the method of attaching the wall panel and the installation position of the tile expansion joint, when the tile expansion joint is provided in correspondence with only a specific joint between the panels, it is difficult to judge the position, and it is generally known. , The wall panel contractor fills in the drawings and sends it to the tile finishing contractor.

The technique disclosed in Japanese Patent Application Laid-Open No. 11-13251 (third known example) is a technique in which the above-mentioned transmission means is modified, and the color and luster of the sealing material placed between the wall panels are improved. By using a recognizable sealing material such as changing the wall joints, the wall panel joints provided with tile expansion joints and the wall panel joints not provided with tile expansion joints are distinguished from each other.

[0010]

In the above-mentioned first known example, for example, in the case of a lightweight cellular concrete panel, since the standard width of the panel 1 is 600 mm or less, the construction method of applying the tile adhesive material to each panel joint is stopped. In the case of, the workability was poor because the coating spread was limited to the panel width, and there was the problem that it was difficult to align the position of the finished surface of the adhesive material for each panel.

Generally, the position where the adhesive is applied is
As shown in FIGS. 8 (B) and 8 (C), it is the end of the chamfered portion 12 on the surface of the panel, and it is difficult to secure a predetermined expansion and contraction joint dimension, and an adhesive material is attached to a part of the back surface of the tile. However, there is a problem that a reliable adhesive force cannot be expected.

Further, as shown in FIG. 8 (E), the surface treatment material 4,
After the adhesive material 5 is applied across the panels, a trowel is put along the joints between the panels, and in the construction method in which the base treatment material 4 and the adhesive material 5 are scraped off to cut the edges, this trowel insertion is performed as a base treatment. Since it has to be performed after the application of the material 4 and the adhesive material 5 and before curing, it is difficult to obtain the accuracy of the width dimension of the expansion joint and the accuracy of the joint. In particular, in the case of a lightweight cellular concrete panel, the chamfer dimension on the long side of the panel is large and the dimension of the scraping depth 13 is large, so that the degree of difficulty is high.

Further, since the undercoating material 4 and the adhesive material 5 have a certain degree of fluidity, even if the edges are cut off before the material is cured, there is a risk that the tile expansion joints will be blocked again by its own fluidity. . In addition, when the tiles are pressed down when the tiles are attached, there is a risk that the adhesive may squeeze out and block the expansion and contraction joints of the tiles, resulting in lack of certainty in construction.

Further, in the first known example, careful construction management is required so that the tile expansion joints are surely provided at the predetermined places.

In the second known example, as in the case of the above-mentioned construction method, after applying the adhesive material across the panels, a trowel is placed along the joints between the panels to apply the base treatment material 4 and the adhesive material 5. Since there is a step of cutting off the scraping edge, it has the same problems as those described above. Further, since the second backup material is generally installed by a plasterer or a tile supplier, careful construction management is required so that the backup material 7 can be surely stretched at a predetermined place.

In addition, in the third known example, it is possible to confirm the position of the tile expansion and contraction joints before the tile construction, but the base treatment material and the adhesive material are surely cut off after the tile construction is completed. There was a problem that it was not possible to confirm whether or not it was constructed. In terms of quality control,
I had to reconfirm after the completion of tiling before the sealing work on the tile surface.

The present invention is intended to solve the above-mentioned problems, and its purpose is to ensure that tile expansion and contraction joints are excellent in dimensional accuracy and positional accuracy, regardless of the skill of the plasterer and tile builder. It is intended to provide a structure of a stretchable joint for tile and a construction method thereof which can be easily managed.

[0018]

[Means for Solving the Problems] The present invention for solving the above problems is as follows. The invention according to claim 1 is
In a stretchable joint structure with a tiled finish applied to a wall surface composed of a plurality of wall panels, a backup material is fixed to the surface of a sealing material placed at joints between the wall panels corresponding to the stretchable joint portions. The backup material projects from the panel surface, and the finished height of the backup material is near the finished surface of the tile adhesive material.

The invention according to a second aspect is characterized in that in the stretchable joint structure of the tiled finish according to the first aspect, the backup projects from the finished surface of the undercoating material.

According to a third aspect of the present invention, there is provided a stretchable joint structure having a tiled finish according to the first or second aspect,
The width of the side of the backup material facing the sealing material is
It is characterized by being less than the joint width of the sealing material.

According to a fourth aspect of the present invention, in the stretchable joint structure of tiled finish according to the first to third aspects, the cross-sectional shape of the backup material is trapezoidal, semicircular, semielliptic or triangular. It is characterized by having a shape.

According to a fifth aspect of the present invention, in a method of constructing a stretchable joint having a tiled finish applied to a wall surface composed of a plurality of wall panels, among joints between panels forming the wall surface. , On the surface of the sealing material placed in the joints between panels that match the stretch joints of the tiled finish,
The method for applying a stretchable joint for tiled finish according to any one of claims 1 to 4, wherein the backup material is fixed by using the sealing material as an adhesive before the sealing material is cured.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below. FIG. 1 is a cross-sectional view of an embodiment of a stretchable joint structure for tiles according to the present invention.

In FIG. 1, reference numeral 1 is a wall panel constituting the wall surface of the present invention, which is an ALC panel (lightweight cellular concrete panel). The corner portion of the ALC panel 1 is provided with a small chamfer 12 of about 3 mm. The chamfer size is not particularly limited, but is preferably about 3 mm or less.

Between the ALC panels 1, joints between panels having a width of about 10 mm are provided, and a first backup material 2 and a first sealing material 3 are cast. A second backup material 7 is fixed to the surface of the sealing material 3 with an adhesive material or a double-sided tape, so that the finishing level of the adhesive material 5 for tile application and the finished height of the second backup material 7 are almost the same. There is. The finished height of the second backup material 7 is not limited to this, and may be −2 mm or more from the finished surface of the adhesive material 5.

Here, the adhesive material 5 is classified into two types, that is, an off-the-shelf compound and an on-site compound, both of which use a polymer cement-based mortar.

FIG. 3 shows an embodiment in which the finished height of the second backup material 7 is -2 mm from the finished surface of the adhesive material 5. If the cover thickness of the adhesive on the second backup material 7 is 2 mm or less, the tile expansion joints will easily cause a misalignment. Therefore, it is necessary to cut the edge of the adhesive 5 on the second backup material 7. It is not necessary and the workability of applying adhesive is good.

Further, since the second backup material 7 is projected from the finished surface of the base material 4, the position of the expansion and contraction joint of the tile is adjusted even when a plasterer other than the tile supplier applies the base material. It can be reliably transmitted to the tile contractor in the subsequent process.

Here, the substrate treatment material 4 is a water absorption adjusting material,
Includes ironing material and mortar for adjusting unevenness. The water absorption adjusting material is applied so that the water content of the ironing material and the non-uniformity adjusting mortar is not absorbed by the wall panel and does not cause curing failure.Most are ethylene vinyl acetate-based or acrylic ester resin-based polymer dispersions. It is desirable to do. The ironing material and non-sticking material should be polymer cement mortar that is ready-made or field-prepared with low drying shrinkage that can secure the adhesion to the wall panel and tile adhesive.

The second backup material is made of foamed polyethylene or foamed polystyrene. In the case of an ALC panel, acrylic sealing is often used as the first sealing material 3, and the second backup material is preferably one having air permeability.

FIG. 4 shows an embodiment in which a second backup material 7 having a triangular cross section is used. Second backup material 7
It is desirable that the width of the bottom of the cross-section is approximately equal to or slightly narrower than the joint width of the wall panel.

If this width is excessively narrower than the joint width of the wall panel, it becomes difficult to install the backup material 7 in the center of the joint width of the ALC panel when installing the backup material 7. Further, when the first sealing material 3 between the wall panels is thinned during the curing process, it is easily affected by the thinness and it is difficult to obtain the finished position accuracy of the backup material.

On the contrary, if the width of the bottom of the cross section of the second backup material 7 is made wider than the joint width 8 of the ALC panel, it is difficult to bring the backup material 7 into contact with the surface of the sealing 3 and the adhesive performance is improved. Problems tend to occur. Also, A
Due to the thinning of the curing process of the sealing material 3 between the LC panels, there is a risk that the backup material 7 will become detached and the backup material 7 will fall off.

Therefore, the width of the second backup material 7 on the side facing the sealing material 3 is 8 mm to 10 mm as the most ideal width since the panel joint width is generally about 10 mm in the case of an ALC panel. is there.

Even when the finished position of the backup material projects beyond the finished surface of the adhesive material 5 as shown in FIG. 4, the backup material 7 has a triangular cross-sectional shape, and the width of the top portion of the backup material is Since it is narrower than the width of the tile expansion and contraction joint 10, it does not hit the back surface of the tile. Further, since the backup material 7 is not applied to the back surface of the tile, the adhesive material 5 can be applied to the entire back surface of the tile, and the adhesiveness of the tile is excellent.

Further, since the backup material 7 has a triangular cross-sectional shape, it is excellent in stability and will not fall down even if a trowel hits it during the application of the surface treatment material or the adhesive material. Further, since it has a tapered shape, it is possible to reduce deterioration of workability during trowel coating work due to the presence of the backup material.

FIGS. 5A, 5B and 5C show another embodiment of the cross-sectional shape of the backup material 7. By using the backup material having these cross-sectional shapes, it is possible to obtain the same effect as that of the triangular backup material described above.

In the case of performing tile finishing on the wall surface composed of ALC panels, a tiling method such as mosaic tiling or masking is often used. In that case, the coating thickness of the base treatment material 4 is about 1 mm, and the coating thickness of the adhesive material 5 is about 3 mm. Thinning of the sealing material itself due to hardening of the sealing, that is, reduction in joint depth 9 between panels in FIG. 4 and chamfering dimension of the long side and short side of the ALC panel of about 3 m
In consideration of the coating thickness of the base material and the adhesive, the height of the backup material is preferably 6 to 9 mm, and the height of 7 to 8 mm is the most convenient for construction and the performance is easily secured.

FIG. 6 shows the AL in the corner of the building.
It is an example of a tile expansion and contraction joint structure in which C panels 1 are arranged in a perpendicular direction to each other and a joint portion is formed by providing a gap between ALC panels.

The width between the ALC panels 1 is 10 to 25 m.
A panel joint of about m is provided, and the first backup material 2 and the first sealing material 3 are cast. The second backup material 7 is fixed to the surface of the sealing material 3, and the finishing level of the adhesive material 5 for tile application and the finished height of the second backup material 7 are almost the same. Second
The finished height of the backup material 7 is not limited to this, and may be -2 mm or more from the finished surface of the adhesive material 5.

In addition, the dimensions and properties of various materials provided at the locations are the same as those described above, but only the cross-sectional dimensions of the second backup material 7 need to be changed. Since the joint width 8 between the panels becomes larger than the size shown in FIG. 1, the size of the side of the backup material facing the sealing material 3 is larger than that of the backup material shown in FIG.

At this time, the width of the side of the second backup material facing the sealing is the joint width of the sealing material-2 m.
It is desirable that it is not less than m and not more than the joint width of the sealing material.

FIG. 2 is a schematic view showing a construction procedure of the tile expansion and contraction joint structure shown in FIG. As shown in FIG. 2 (A), the first backup material 2 and the first sealing material 3 are placed in the joints between the panels to form a wall panel, and in FIG. 2 (B),
Before the sealing material 3 is cured at the joint between the panels of the ALC panel 1, the second backup material 7 is fixed by using the sealing material as an adhesive. After that, the base treatment material 4 and the adhesive material 5 are applied and tiled as shown in FIG. 2C to form the tile expansion and contraction joint 10 shown in FIG. 2D. Generally, the ALC company also carries out the installation of the sealing material 3 on the panel joints, so that the ALC company also carries out the installation of the backup material 7.

FIG. 7 is an elevation view of the wall surface showing the installation positions of the tile expansion joints. The installation location of the tile expansion and contraction joint 10 differs depending on the method of attaching the wall panel to the building. FIG. 7 shows an example of a mounting method in which several wall panels are slid together as the building body 11 is deformed.

Tile expansion joints are not provided in joints between all wall panels, and it is clear which plasterer or tile contractor should be provided with tile expansion joints in correspondence with joints between wall panels. It is difficult to judge.

According to the tile expansion joint construction method of the present invention, since the wall panel installer who is familiar with the wall panel installation construction installs the backup material 7, the position of the tile expansion joint can be reliably ensured by a plasterer or a plasterer. It can be communicated to the tiler.

[0047]

As described above, according to the invention as set forth in claim 1, regardless of the skill of the plasterer or the tiler, the base treatment material and the adhesive material do not straddle the wall panels to form an edge. It can be cut and can be used as a tile expansion joint. Further, as compared with the construction method in which the adhesive is applied or scraped off after the application, the dimensional accuracy of the expansion joint can be improved and the width dimension can be reduced, so that the adhesive force of the tile along the expansion joint of the tile can be secured. .

According to the second aspect of the present invention, since the backup material projects from the finished surface of the undercoating material, even when the plastering company applies the undercoating material, the position of the tile expansion and contraction joint is post-processed. Can be reliably transmitted to the tile contractor.

According to the third aspect of the invention, since the width of the backup material on the side facing the sealing material is close to the joint width dimension of the sealing material, when the backup material is fixed, the positioning is easy and the accuracy is high. Is improved. Also, it is unlikely that the finished material will be affected by the thinning of the sealing material.

According to the invention as set forth in claim 4, since the backup material has a cross-sectional shape which is widened toward the end, the stability is increased, and the trowel comes into contact with the backup material at the time of applying the base treatment material or the adhesive material. It never falls. In addition, the tapered cross-sectional shape can reduce the influence on the workability of the iron coating operation when applying the adhesive, and the back surface of the tile is not covered with the adhesive, so that the adhesive is applied to the entire back surface of the tile. Adhesion can be ensured and sufficient tile adhesive strength can be ensured.

According to the invention described in claim 5, a new adhesive is not required to fix the backup material to the sealing material of the wall panel joint.

[Brief description of drawings]

FIG. 1 is a detailed cross-sectional view showing a joint structure of tile stretch joints in the present invention.

2 (A) to 2 (D) are diagrams showing a construction procedure of a joint portion shown in FIG.

FIG. 3 is a diagram showing a state in which the top portion of the backup material shown in FIG. 1 is housed inside the adhesive material.

FIG. 4 is a diagram showing a state in which the backup material shown in FIG. 1 has a triangular shape, and the top portion protrudes from the surface of the adhesive material.

FIG. 5 is a diagram showing another example of the cross-sectional shape of the second backup material.

[Fig. 6] Fig. 6 is a detailed view of a building corner portion in a housed state.

FIG. 7 is an elevation view of a wall surface showing installation positions of tile stretch joints.

FIG. 8A is a detailed cross-sectional view of a joint portion when the joint portion between panels is a tile expansion joint. Figure 8
8 (B) and 8 (C) are detailed cross-sectional views showing a state in which the base treatment material and the adhesive material are applied to the joint portion shown in FIG. 8 (A). FIG. 8D is a detailed cross-sectional view showing a state in which the base treatment material and the adhesive material are applied across the joints between the panels. FIG. 8 (E) is a detailed cross-sectional view of the state shown in FIG. 8 (D) when a trowel is inserted to form a tile expansion / contraction joint.

FIG. 9 (A) is a detailed cross-sectional view of a joint portion when the joint portion between panels is a tile expansion joint. FIG. 9 (B)
[Fig. 4] is a view showing a state in which a backup material is attached to a joint portion between panels shown in Fig. 3. FIG. 9C is a diagram showing a state in which the undercoating material and the adhesive are applied in the state of FIG. 9B. FIG. 9D is a diagram showing a state when the trowel is inserted along the tile stretch joint in the state of FIG. 9C.

[Explanation of symbols]

1 wall panel 2 First backup material 3 First Ceiling 4 surface treatment material 5 adhesive 6 tiles 7 Second backup material Joint width between 8 panels 9 Joint depth between panels 10 tile expansion joints 11 building frame 12 Panel chamfer 13 Scraping depth 14 Second sealing

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2E001 DA01 FA04 FA51 HA01 HA07                       HA14 HD08 HD09 HF02 JA01                       JD02 LA04 MA02 MA06 MA15                 2E110 AA14 AA42 AB04 AB22 CA03                       DA12 DD03 DD08 GA34W                       GB23Y GB28W

Claims (5)

[Claims] 1. A stretchable joint structure with a tiled finish applied to a wall surface composed of a plurality of wall panels, wherein the surface of a sealing material placed at joints between the wall panels corresponding to the stretchable joint portions. A stretchable joint structure with a tile finish, wherein a backup material is fixed, the backup material projects from the panel surface, and the finished height of the backup material is near the finished surface of the tile adhesive material. 2. The stretchable joint structure having a tiled finish according to claim 1, wherein the backup material projects from a finished surface of the undercoat material. 3. The stretchable joint structure of tiled finish according to claim 1, wherein the width dimension of the side of the backup material facing the sealing material is not more than the joint width of the sealing material. 4. The stretchable joint structure of tiled finish according to claim 1, wherein the backup material has a trapezoidal shape, a semicircular shape, a semielliptic shape, or a triangular cross-sectional shape. . 5. A method of constructing a stretchable joint having tiled finish applied to a wall surface composed of a plurality of wall panels, wherein a stretchable joint having tiled finish is included among joints between the panels constituting the wall surface. 5. A tile according to any one of claims 1 to 4, wherein a backup material is fixed to the surface of the sealing material placed in the joints between the panels corresponding to the above, using the sealing material as an adhesive before the sealing material hardens. How to install stretch joints with tension.