JP6949666B2 - Tile wall structure and tile wall construction method - Google Patents

Description

The present invention relates to a structure of a tile wall of a building and a method of constructing the tile wall.

The following Patent Document 1 proposes a method for constructing a tile wall in which tiles are fixed to the surfaces of a plurality of base materials. In this construction method, first, an elastic joint tape is laid on the surface of the base material so as to straddle the joints between the base materials. Then, an elastic adhesive is applied to the surface of the base material and the surface of the joint tape, and the tiles are attached.

Japanese Patent No. 5557781

The joint tape of Patent Document 1 is configured as a butyl rubber joint tape, and is made of a material different from the elastic adhesive covering the joint tape. Therefore, in the tile wall of Patent Document 1, the stress of the joint portion, which is the joint portion between the base materials due to the seismic motion, is relaxed to some extent by the joint tape, but for example, the adhesive layer portion of the joint tape (the above-mentioned form). Then, at the interface between different materials where the edge portions on both sides of the butyl rubber) and the elastic adhesive are in contact with each other, a new place where strain is concentrated occurs. As a result, there is a problem that cracks are gradually generated from the interface between the edge of the joint tape and the elastic adhesive, which grows and causes cracks in the elastic adhesive and the tile.

The present invention has been devised in view of the above circumstances, and is a structure of a tile wall having excellent durability and construction of a tile wall that can suppress the occurrence of cracks in elastically cured parts and tiles for a long period of time. Its main purpose is to provide a method.

The present invention is a structure of a tile wall of a building, in which a plurality of wall base materials are arranged through joints, an adhesive layer arranged on an outer surface of the wall base, and an adhesive layer are fixed to the adhesive layer. The adhesive layer includes an elastically cured portion obtained by curing a single elastic adhesive, and has a width embedded in the elastically cured portion and straddles the joint along the joint. It is characterized in that it is composed of a composite with a perforated sheet having an extending elasticity.

In the structure of the tile wall according to the present invention, the perforated sheet may include a knitted fabric or a woven fabric.

In the structure of the tile wall according to the present invention, the joint may have a sealing portion filled with a sealing material.

In the structure of the tile wall according to the present invention, the joint may be the abutment of the wall base material.

The present invention is a method for constructing a tile wall, and is a method for constructing a tile wall, in which a plurality of wall base materials are arranged at the joint of the wall base through joints, and the first elasticity is provided along the joints with a small width covering the joints. A step of applying an adhesive, a step of pasting a perforated sheet having a width straddling the joint and extending along the joint on the first elastic adhesive, and the first step. A step of applying a second elastic adhesive, which is the same adhesive as the elastic adhesive, to the entire area of the wall base so as to cover the outer surface of the perforated sheet, and before the second elastic adhesive is cured. It is characterized by including a step of pasting a tile on the second elastic adhesive.

In the tile wall construction method according to the present invention, the step of applying the second elastic adhesive may be performed before the first elastic adhesive is completely cured.

In the tile wall construction method according to the present invention, the step of applying the second elastic adhesive may be performed after the first elastic adhesive is completely cured.

The structure of the tile wall of the first invention of the present application includes a wall base in which a plurality of wall base materials are arranged via joints, an adhesive layer arranged on the outer surface of the wall base, and a plurality of tile walls fixed to the adhesive layer. Includes tiles and. The adhesive layer has an elastically cured portion in which a single elastic adhesive is cured, and an elastic perforated portion embedded in the elastically cured portion and having a width straddling the joint and extending along the joint. It is composed of a complex with a sheet.

The structure of the tile wall of the first invention of the present application includes, for example, a displacement of the wall base material due to seismic motion, a dimensional change due to a change in the external environment (dimension change behavior of the base material due to a temperature change or a water content change), and the like. Therefore, the stress that tends to be concentrated on the adhesive layer near the joint of the wall base material can be dispersed by the expansion and contraction of the perforated sheet. Therefore, the structure of the tile wall of the first invention of the present application can effectively prevent cracks in the elastically cured portion and the tile due to the concentration of stress.

Further, the adhesive layer of the first invention of the present application is composed of a composite of the elastically cured portion obtained by curing the single elastic adhesive and the perforated sheet embedded in the elastically cured portion. Therefore, unlike Patent Document 1, a dissimilar material interface portion where the adhesive layer portion of the joint tape and the elastic adhesive are in contact with each other is not generated. Therefore, it is possible to prevent the concentration of strain at such an interface. Moreover, in the adhesive layer of the first invention of the present application, the elastically cured portion can be integrated with each other inside and outside the perforated sheet by utilizing the hole portion of the perforated sheet. Thereby, the structure of the tile wall of the first invention of the present application can suppress the concentration of strain even between the perforated sheet and the elastically cured portion. Therefore, the structure of the tile wall of the first invention of the present application can suppress the occurrence of cracks in the elastically cured portion and the tile for a long period of time, so that the durability can be improved.

In the method for constructing a tile wall of the second invention of the present application, a first elastic adhesive is applied to the joint of a wall base in which a plurality of wall base materials are arranged via joints, with a small width covering the joints. A step of applying, a step of pasting a perforated sheet having a width straddling the joint and extending along the joint on the first elastic adhesive, and the first elastic adhesive. The step of applying the second elastic adhesive, which is the same adhesive as the above, to the entire area of the wall base so as to cover the outer surface of the perforated sheet, and the second before the second elastic adhesive is cured. It includes the process of pasting tiles on top of the elastic adhesive.

In the construction method of the second invention of the present application, since the first elastic adhesive and the second elastic adhesive are composed of the same adhesive, the compatibility between the first elastic adhesive and the second elastic adhesive Can be improved. Further, in the construction method of the second invention of the present application, the first elastic adhesive and the second elastic adhesive can be brought into close contact with each other inside and outside the perforated sheet by utilizing the holes of the perforated sheet. can. Therefore, the construction method of the second invention of the present application can obtain the adhesion between the first elastic adhesive and the second elastic adhesive without using a primer or the like, thus improving the workability of the tile wall. Can be made to.

Further, in the construction method of the second invention of the present application, after the perforated sheet is attached on the first elastic adhesive, the second elastic adhesive is applied so as to cover the outer surface of the perforated sheet. As a result, the perforated sheet can be easily embedded in a single elastic adhesive. Therefore, the construction method of the second invention of the present application can improve the workability of the tile wall.

Further, in the construction method of the second invention of the present application, since the elastic perforated sheet having a width straddling the joint is arranged along the joint, the first elastic adhesive and the second elastic adhesive can be used. In the cured adhesive layer, stress that tends to concentrate near the joints can be dispersed by the expansion and contraction of the perforated sheet. Therefore, the construction method of the second invention of the present application can form a tile wall capable of effectively preventing cracks in the elastically cured portion and the tile due to the concentration of stress.

Further, in the construction method of the second invention of the present application, the adhesive layer is formed by a composite of an elastically cured portion obtained by curing a single elastic adhesive and the perforated sheet embedded in the elastically cured portion. Since it can be configured, the interface portion of different materials in which the adhesive layer portion of the joint tape and the elastic adhesive are in contact with each other is not generated as in Patent Document 1. Therefore, it is possible to prevent the concentration of strain at such an interface. Moreover, in the construction method of the second invention of the present application, the first elastic adhesive and the second elastic adhesive are integrated with each other inside and outside the perforated sheet by utilizing the hole portion of the perforated sheet. be able to. As a result, the construction method of the second invention of the present application can suppress the concentration of strain even between the perforated sheet and the elastically cured portion, so that cracks in the elastically cured portion and the tile can be prevented. It is possible to form a tile wall having excellent durability that can suppress the occurrence for a long period of time.

It is sectional drawing which shows an example of the structure of the tile wall of a building. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a front view which shows an example of a perforated sheet. It is a front view which shows an example of the perforated sheet of another embodiment of this invention. It is sectional drawing explaining an example of the step of applying the 1st elastic adhesive. It is sectional drawing explaining an example of the process of pasting a perforated sheet. It is sectional drawing explaining an example of the step of applying the 2nd elastic adhesive. It is sectional drawing explaining an example of the process of pasting a tile. It is a perspective view which shows an example of a test body and a test apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that each drawing is for enhancing the understanding of the content of the invention, and in addition to including exaggerated display, it is pointed out in advance that the scales and the like do not exactly match between the drawings. FIG. 1 is a cross-sectional perspective view showing an example of a tile wall structure of a building (hereinafter, may be simply referred to as a “tile wall structure”). FIG. 2 is a cross-sectional view taken along the line AA of FIG.

The tile wall structure of the present embodiment can be applied to, for example, the tile wall 1 of a building such as a general house or building. The tile wall 1 may be an interior wall as well as an exterior wall. The tile wall 1 of the present embodiment includes a wall base 2, an adhesive layer 3, and a plurality of tiles 4. Each tile 4 is fixed to the adhesive layer 3. The tiles 4 of the present embodiment are arranged in a horse joint shape, but are not particularly limited, and may be arranged in a potato joint shape, for example.

The wall base 2 includes a plurality of wall base materials 6. The wall base 2 of the present embodiment is configured by arranging a plurality of wall base materials 6 and 6 via joints 7. Each wall base material 6 is formed in a panel shape, and is fixed to, for example, a frame body (not shown) framed in a substantially rectangular shape. For the wall base material 6, for example, a ceramic siding material, a metal siding material, an ALC (lightweight cellular concrete), a resin siding material, a calcium silicate board, a gypsum board, a gypsum slag board, or the like can be adopted.

The joint 7 of the present embodiment is formed by separating the edge 6t, 6t of the adjacent wall base materials 6, 6. The width W1 (shown in FIG. 2) of the joint 7 is set to, for example, about 3 to 30 mm. The joint 7 of the present embodiment has a sealing portion 11 filled with the sealing material 10. Such a sealing portion 11 is useful for ensuring watertightness between the adjacent wall base materials 6 and 6. As the sealing material 10, for example, a silicone-based, modified silicone-based, urethane-based, acrylic-based, polysulfide-based, or acrylic urethane-based material can be adopted.

In the present embodiment, the joint 7 having the sealing portion 11 filled with the sealing material 10 has been exemplified, but the present embodiment is not limited to such an embodiment. For example, the joint 7 may be the abutment of the wall base material 6. It should be noted that the abutting includes not only the one in which the end faces of the wall base material 6 are simply butted with each other having a flat shape, but also the one in which the ones having a processed end face are meshed with each other. Since such a wall base 2 does not require a sealing portion 11, workability can be improved.

The adhesive layer 3 is composed of a composite of the elastically cured portion 13 and the perforated sheet 14 embedded in the elastically cured portion 13.

The elastically cured portion 13 is formed by curing a single elastic adhesive 17. The elastically cured portion 13 is arranged inside and outside the perforated sheet 14 (that is, inside and outside the perforated sheet 14). The inside of the perforated sheet 14 means the wall base 2 side with respect to the perforated sheet 14. Further, the outside of the perforated sheet 14 means the tile 4 side with respect to the perforated sheet 14.

As described above, the elastically cured portion 13 of the present embodiment is formed by curing the single elastic adhesive 17, and therefore, as in Patent Document 1, both sides of the adhesive layer portion (butyl rubber) of the joint tape. No interface between different materials is formed in which the edge portion of the material and the elastic adhesive are in contact with each other. Thereby, the structure of the tile wall of the present embodiment can prevent the concentration of strain generated at such an interface and the generation of cracks due to the strain. Therefore, the structure of the tile wall of the present embodiment can suppress the occurrence of cracks in the elastically cured portion 13 and the tile 4 for a long period of time, so that the durability can be improved.

The thickness T2 (shown in FIG. 2) of the elastically cured portion 13 (adhesive layer 3) is set to, for example, about 1 to 10 mm. The thickness T2 is defined as the distance between the outer surface 2s of the wall base 2 and the tile 4. For the elastic adhesive 17, for example, a modified silicone adhesive, a urethane adhesive, a polymer cement mortar adhesive, an acrylic adhesive, or the like can be adopted.

The perforated sheet 14 of the present embodiment has a width W3 (shown in FIG. 2) straddling the joint 7, and extends along the joint 7 as shown in FIG. FIG. 3 is a front view showing an example of a perforated sheet.

The perforated sheet 14 shown in FIG. 3 is configured as a woven fabric 18. The woven fabric 18 includes a warp 19 and a weft 20, and is formed by weaving a combination of the warp 19 and the weft 20. The woven fabric 18 of the present embodiment is exemplified as a plain weave, but the woven fabric 18 is not particularly limited, and may be formed by various techniques such as entwined weaving.

As the fibers constituting the warp 19 and the weft 20, for example, synthetic fiber, glass fiber, ceramic fiber, carbon fiber or the like can be adopted. As the synthetic fiber, for example, polyester-based, polyamide-based, polypropylene-based, polyethylene-based, polyviryl alcohol-based, aramid-based, polyimide-based, or fluororesin-based synthetic fiber can be adopted.

At least one of the warp 19 and the weft 20 may be elastic. The elasticity of the warp 19 or the weft 20 can be suitably exhibited when the warp 19 or the weft 20 is composed of, for example, an elastic yarn or a false twisted yarn. Due to such warp 19, weft 20, and weaving, the perforated sheet 14 has elasticity in the warp or weft direction.

The perforated sheet 14 is, for example, due to a displacement of the wall base material 6 due to seismic motion, a dimensional change due to a change in the external environment (dimensional change behavior of the base material due to a temperature change or a water content change), or the like. The stress that tends to concentrate on the adhesive layer 3 near the joint 7 can be dispersed by the expansion and contraction of the perforated sheet 14. Therefore, the structure of the tile wall of the present embodiment can prevent the occurrence of cracks in the elastically cured portion 13 and the tile 4 due to the concentration of stress, so that the durability can be improved.

In order to effectively disperse the stress, it is desirable that the perforated sheet 14 has elasticity at least in the width direction of the joint 7, and further, the perforated sheet 14 has elasticity in both the width direction and the longitudinal direction of the joint 7. Is desirable. The expansion / contraction rate of the perforated sheet 14 is preferably about 10% to 200%. The expansion / contraction ratio of the perforated sheet 14 is a value measured according to the provisions of the B-1 method (constant load method) of the "fabric test method for woven fabrics and knitted fabrics" of JIS L1096.

As shown in FIG. 2, it is desirable that the width W3 of the perforated sheet 14 is, for example, about 2 to 25 times the width W1 of the joint 7. Further, it is desirable that the perforated sheet 14 is arranged over the entire area of the joint 7 in the longitudinal direction. As a result, the perforated sheet 14 can effectively disperse the stress that tends to concentrate on the adhesive layer 3 near the joint 7 of the wall base material 6. Further, the distance L3 between the perforated sheet 14 and the outer surface 2s of the wall base 2 is preferably about 10% to 50% of the thickness T2 of the elastically cured portion 13 (adhesive layer 3).

As shown in FIG. 3, a hole 21 is formed in a space (opening portion) surrounded by the warp thread 19 and the weft thread 20. As shown in FIG. 2, the hole 21 penetrates inside and outside the perforated sheet 14. With such a hole portion 21, the adhesive layer 3 can integrate the elastically cured portion 13 with each other inside and outside the perforated sheet 14. As a result, the tile wall structure of the present embodiment can suppress the concentration of strain between the perforated sheet 14 and the elastically cured portion 13. Therefore, the structure of the tile wall of the present embodiment can suppress the occurrence of cracks in the elastically cured portion 13 and the tile 4 for a long period of time, so that the durability can be improved.

In order to further integrate the elastically cured portion 13 inside and outside the perforated sheet 14, the opening dimension L4 (shown in FIG. 3) of the perforated sheet 14 in the warp direction and the weft direction is set to 200 to 3000 μm. Is desirable. When the size of each hole 21 is non-uniform, the opening size L4 is the average value of the opening size L4 of each hole 21. Further, in order to prevent strain from concentrating between the perforated sheet 14 and the elastically cured portion 13, the thickness T3 of the perforated sheet 14 is preferably set to 0.2 to 1.0 mm.

As described above, the adhesive layer 3 of the present embodiment can disperse the stress that tends to be concentrated on the adhesive layer 3 near the joint 7 of the wall base material 6 by the expansion and contraction of the perforated sheet 14. Further, since the adhesive layer 3 of the present embodiment is composed of a composite of the elastically cured portion 13 and the perforated sheet 14, the adhesive layer portion of the joint tape and the elastic adhesive are used as in Patent Document 1. The interface between different materials that are in contact with each other is not generated. Moreover, in the adhesive layer 3 of the present embodiment, the elastically cured portion 13 can be integrated with each other inside and outside the perforated sheet 14 by utilizing the hole portion 21 of the perforated sheet 14. Therefore, the adhesive layer 3 of the present embodiment can suppress the occurrence of cracks in the elastically cured portion 13 and the tile 4 for a long period of time, and can effectively improve the durability.

The perforated sheet 14 of the present embodiment is configured as a woven fabric 18, but is not limited to such an embodiment. The perforated sheet 14 may be configured as a knit. FIG. 4 is a front view showing an example of a perforated sheet according to another embodiment of the present invention. In this embodiment, the same configurations as those in the previous embodiment are designated by the same reference numerals, and the description thereof may be omitted.

The knitted fabric 23 is formed by hooking the next yarn 24 on the loop 25 created by the yarn 24 to continuously create the loop 25. Such a knitted fabric 23 is superior in elasticity in the warp direction and the weft direction as compared with the woven fabric 18 shown in FIG. As the yarn 24, the same yarns as the warp 19 and the weft 20 of the woven fabric 18 shown in FIG. 3 can be adopted.

Similar to the perforated sheet 14 (shown in FIG. 3) of the previous embodiment, such a perforated sheet 14 is resistant to misalignment of the wall base material 6 (shown in FIG. 2) due to earthquake motion and changes in the external environment. Due to the accompanying dimensional change (dimensional change behavior of the base material due to temperature change and water content change), stress that easily concentrates on the adhesive layer 3 (shown in FIG. 2) near the joint 7 of the wall base material 6 is applied to the perforated sheet 14. It can be dispersed by the expansion and contraction of. Therefore, the structure of the tile wall of the present embodiment can prevent the occurrence of cracks in the elastically cured portion 13 and the tile 4 due to the concentration of stress, so that the durability can be improved. In order to effectively exert such an action, it is desirable that the expansion / contraction rate of the perforated sheet 14 is set to the same range as the expansion / contraction rate of the perforated sheet 14 of the previous embodiment.

A hole 21 is formed in the space (opening portion) surrounded by the loop 25. The hole 21 penetrates inside and outside the perforated sheet 14. With such a hole portion 21, the adhesive layer 3 can integrate the elastically cured portion 13 with each other inside and outside the perforated sheet 14, so that the adhesive layer 3 is distorted between the perforated sheet 14 and the elastically cured portion 13. Can be suppressed from concentrating. Therefore, the structure of the tile wall of this embodiment can suppress the occurrence of cracks in the elastically cured portion 13 and the tile 4 for a long period of time, so that the durability can be improved. In order to effectively exert such an action, the opening dimensions L5 in the warp direction and the weft direction of the perforated sheet 14 are the same as the opening dimensions L4 in the warp direction and the weft direction of the perforated sheet 14 of the previous embodiment. It is desirable that they are set in the same range. When the size of each hole 21 is non-uniform, the opening size L5 is the average value of the opening size L5 of each hole 21.

The perforated sheet 14 of the embodiment so far is composed of the woven fabric 18 shown in FIG. 3 and the knitted fabric 23 shown in FIG. 4, but is not limited to such an embodiment. The perforated sheet 14 may have, for example, a sheet having a plurality of holes 21. In such a perforated sheet 14, the warp threads 19, the weft threads 20, and FIG. 4 shown in FIG. 3 are integrated with each other inside and outside the perforated sheet 14 by utilizing the hole portions 21. Since the misalignment of the thread 24 shown in the above can be prevented, the durability can be improved.

Next, a method for constructing the tile wall 1 (hereinafter, may be simply referred to as a “construction method”) will be described. In the construction method of the present embodiment, the step S1 of applying the first elastic adhesive to the joint 7 of the wall base 2 is carried out. FIG. 5 is a cross-sectional view illustrating an example of the step S1 for applying the first elastic adhesive 31.

As described above, the wall base 2 is configured by arranging a plurality of wall base materials 6 via joints 7. In step S1, the first elastic adhesive 31 is applied to the joint 7 of the wall base 2 along the joint 7 with a small width covering the joint 7. In step S1 of the present embodiment, the first elastic adhesive 31 is applied in a band shape over the entire area of the joint 7 in the longitudinal direction. As the first elastic adhesive 31, the same elastic adhesive 17 as described above can be adopted.

The width W6 of the first elastic adhesive 31 is set to be larger than the width W1 of the joint 7 and the width W3 of the perforated sheet 14 (shown in FIG. 6). The width W6 of the first elastic adhesive 31 of the present embodiment is set to about 110% to 150% of the width W3 of the perforated sheet 14. Thereby, in the step S2 described later, the entire area of the perforated sheet 14 in the width direction can be attached to the first elastic adhesive 31. Further, it is desirable that the thickness T6 of the first elastic adhesive 31 is set within the same range as the distance L3 between the perforated sheet 14 shown in FIG. 2 and the outer surface 2s of the wall base 2.

Next, in the construction method of the present embodiment, the step S2 of pasting the perforated sheet 14 on the first elastic adhesive 31 is carried out. FIG. 6 is a cross-sectional view illustrating an example of the step S2 in which the perforated sheet 14 is attached.

The perforated sheet 14 has elasticity, and the details thereof are as described above. In step S2, the perforated sheet 14 is arranged on the first elastic adhesive 31 (on the tile 4 side) before curing. The perforated sheet 14 is held by the adhesive force of the first elastic adhesive 31. Therefore, the perforated sheet 14 does not require the adhesive layer portion (not shown) of the joint tape as in Patent Document 1.

In step S2, the perforated sheet 14 is attached onto the first elastic adhesive 31 so as to have a width W3 straddling the joint 7 and extend along the joint 7. In the present embodiment, the perforated sheet 14 is arranged in a strip shape over the entire area of the joint 7 in the longitudinal direction.

Next, in the construction method of the present embodiment, the step S3 of applying the second elastic adhesive 32 to the entire range of the wall base 2 is carried out. FIG. 7 is a cross-sectional view illustrating an example of step S3 for applying the second elastic adhesive 32.

The second elastic adhesive 32 is the same adhesive as the first elastic adhesive 31. Here, the same adhesive means that the main agent, the additive, the curing agent, and the like constituting the first elastic adhesive 31 and the second elastic adhesive 32 are completely the same. In step S3, the second elastic adhesive 32 is applied to the entire range of the wall base 2 so as to cover the outer surface 14o of the perforated sheet 14. Thereby, in the construction method of the present embodiment, the perforated sheet 14 can be easily embedded in a single elastic adhesive (first elastic adhesive 31 and second elastic adhesive 32). Therefore, the construction method can improve the workability of the tile wall 1.

In step S3, since the first elastic adhesive 31 and the second elastic adhesive 32 are composed of the same adhesive, the compatibility between the first elastic adhesive 31 and the second elastic adhesive 32 can be improved. .. Further, in step S3, the first elastic adhesive 31 and the second elastic adhesive 32 can be communicated with each other through the holes 21 of the perforated sheet 14. As a result, in step S3, the first elastic adhesive 31 and the second elastic adhesive 32 can be brought into close contact with each other inside and outside the perforated sheet 14 by utilizing the hole 21 of the perforated sheet 14. Therefore, in step S3, the adhesion of the first elastic adhesive 31 and the second elastic adhesive 32 can be obtained without using a primer or the like (not shown), so that the workability of the tile wall 1 is improved. be able to.

The step S3 of the present embodiment is performed before the first elastic adhesive 31 is completely cured. As a result, in step S3, the first elastic adhesive 31 and the second elastic adhesive 32 can be effectively mixed due to the excellent compatibility between the first elastic adhesive 31 and the second elastic adhesive 32. .. As a result, in the construction method of the present embodiment, the elastically cured portion 13 (shown in FIG. 2) in which the first elastic adhesive 31 and the second elastic adhesive 32 are integrated can be formed, so that the tile wall 1 Durability can be improved.

On the other hand, the step S3 may be performed after the first elastic adhesive 31 is completely cured. As described above, since the first elastic adhesive 31 and the second elastic adhesive 32 are composed of the same adhesive, excellent adhesion is obtained even when the first elastic adhesive 31 is completely cured. be able to. Therefore, in the construction method of the present embodiment, the elastically cured portion 13 (shown in FIG. 2) in which the first elastic adhesive 31 and the second elastic adhesive 32 are integrated can be formed, so that the tile wall 1 can be formed. Durability can be improved. Further, in the step S3 of this embodiment, there is no time constraint from the attachment of the perforated sheet 14 to the first elastic adhesive 31 (shown in FIG. 6) to the application of the second elastic adhesive 32. , Workability can be improved.

In the tile wall 1 on which the first elastic adhesive 31 and the second elastic adhesive 32 are cured, the interface between the first elastic adhesive 31 and the second elastic adhesive 32 in the AA cross section of FIG. 1 (not shown). Omitted) may appear. However, even if such an interface appears, the durability of the tile wall 1 can be maintained due to the excellent adhesion between the first elastic adhesive 31 and the second elastic adhesive 32. Further, since the first elastic adhesive 31 and the second elastic adhesive 32 are the same adhesive, their physical properties such as elongation, hardness, and elastic modulus are the same. As a result, even if the wall base material 6 (shown in FIG. 2) is displaced, stress can be suppressed from concentrating on the interface.

Next, in the construction method of the present embodiment, the step S4 of pasting the tile 4 on the second elastic adhesive 32 is carried out. FIG. 8 is a cross-sectional view illustrating an example of the step S4 in which the tile 4 is attached. In step S4, the tile 4 is attached on the second elastic adhesive 32 before the second elastic adhesive 32 is cured. Then, when the first elastic adhesive 31 and the second elastic adhesive 32 are completely cured, the tile wall 1 shown in FIGS. 1 and 2 can be formed.

In the construction method of the present embodiment, since the stretchable perforated sheet 14 having the width W3 (shown in FIG. 6) straddling the joint 7 is arranged along the joint 7, the first elastic adhesive 31 and the second elastic adhesive 31 and the second In the adhesive layer 3 (shown in FIG. 2) in which the elastic adhesive 32 is cured, the stress that tends to be concentrated near the joints can be dispersed by the expansion and contraction of the perforated sheet 14. Therefore, the construction method of the present embodiment can form the tile wall 1 that can effectively prevent cracks in the elastically cured portion 13 and the tile 4 due to the concentration of stress.

Further, in the construction method of the present embodiment, a single elastic adhesive (first elastic adhesive 31 and second elastic adhesive 32) is embedded in the cured elastically cured portion 13 and the elastically cured portion 13. Since the adhesive layer 3 can be formed by the composite with the perforated sheet 14, the different material interface portion where the adhesive layer portion of the joint tape and the elastic adhesive are in contact with each other as in Patent Document 1 (not shown). Is never generated. Therefore, it is possible to prevent the concentration of strain at such an interface.

Moreover, in the construction method of the present embodiment, the first elastic adhesive 31 and the second elastic adhesive 32 can be integrated with each other inside and outside the perforated sheet 14 by utilizing the hole 21 of the perforated sheet 14. can. As a result, the construction method of the present embodiment can suppress the concentration of strain even between the elastically cured portion 13 and the perforated sheet 14, so that cracks are generated in the elastically cured portion 13 and the tile 4. It is possible to form a tile wall 1 (shown in FIGS. 1 and 2) having excellent durability that can be suppressed for a long period of time.

Although the particularly preferable embodiments of the present invention have been described in detail above, the present invention is not limited to the illustrated embodiments and can be modified into various embodiments.

FIG. 9 is a perspective view showing an example of the test body and the test apparatus of Example B. The test body 36 shown in FIG. 9 was prepared (Examples A and B, Comparative Examples A to C). The test pieces of Examples A and B and Comparative Examples A to C were arranged on the wall base 2 in which the pair of wall base materials 6 and 6 were arranged via the joints 7 and the outer surface 2s of the wall base 2. It was configured to include the adhesive layer 3.

The adhesive layers 3 of Examples A and B have an elastically cured portion 13 in which a single elastic adhesive 17 is cured, and an elastically cured portion 13 embedded in the elastically cured portion 13 and having a width straddling the joint 7 along the joint 7. It was composed of a composite with a perforated sheet 14 having elasticity extending from the surface. The joint 7 of Example A was abutted with the wall base materials 6 and 6. On the other hand, the joint 7 of Example B has a sealing portion 11 filled with the sealing material 10.

The adhesive layer 3 of Comparative Examples A and B was composed of only the elastically cured portion 13 in which a single elastic adhesive 17 was cured. The joint 7 of Comparative Example A was abutted with the wall base materials 6 and 6. On the other hand, the joint 7 of Comparative Example B has a sealing portion filled with a sealing material.

The adhesive layer 3 of Comparative Example C was composed of a composite of a joint tape (not shown) having a width straddling the joint 7 and extending along the joint 7 and an elastic hardening portion 13. The joint 7 of Comparative Example C was abutted with the wall base materials 6 and 6.

Then, with respect to the test bodies of Examples A and B and Comparative Examples A to C, after one accelerated deterioration treatment selected from the following accelerated deterioration treatments a to d, a tensile displacement is applied in the width direction of the joint to apply a tensile displacement to the adhesive layer. The presence or absence of cracks was confirmed respectively. For the tensile displacement, a test device including a pair of support portions 35, 35 for holding the outside of the joint of the test piece in the width direction was used. The common specifications are as follows.
Elastic adhesive: Tile ace made by Cemedine Co., Ltd. Perforated sheet:
Nylon-based elastic woven fabric manufactured by Toray Industries, Inc. Elasticity: 13% in length, 100% in width
Opening dimensions: length 2700 μm, width 1800 μm
Thickness: 0.32 mm
Joint tape: FA tape manufactured by LIXIL Corporation (nonwoven fabric laminated butyl rubber adhesive tape)
Accelerated deterioration treatment a:
For the Sunshine Weather Meter (S80HB) manufactured by Suga Test Instruments Co., Ltd.,
Specimen left for 2000 hours Accelerated deterioration treatment b:
Immerse the test piece in warm water at 50 ° C. for 56 days Accelerated deterioration treatment c:
The test piece is left in an atmosphere at a temperature of 80 ° C. for 90 days. Accelerated deterioration treatment d:
Specimen left in an atmosphere at a temperature of 80 ° C for 120 days Tension displacement test:
Displacement amount: +1 mm to + 2 mm
Frequency: 1Hz
Number of repetitions: 22000 times The test results are shown in Table 1.

As a result of the test, the test bodies of Examples A and B did not have cracks in the adhesive layer 3. On the other hand, in the test bodies of Comparative Examples A to B, cracks were generated in the adhesive layer 3 near the interface between the edge of the wall base material 6 and the adhesive layer 3. Further, in Comparative Example C, cracks were generated from the interface between the edge of the adhesive layer portion of the joint tape and the elastic adhesive, and cracks were generated in the adhesive layer 3.

As described above, the tile walls of Examples A and B can suppress the occurrence of cracks in the elastically cured portion 13 and the tiles (not shown) for a long period of time as compared with the tile walls of Comparative Examples A to C, and are durable. It was confirmed that it was excellent in sex.

1 Tile wall 2 Wall base 3 Adhesive layer 4 Tile 6 Wall base material 13 Elastic hardening part 14 Perforated sheet 17 Elastic adhesive

Claims (7)

The structure of the tile wall of the building
A wall base in which multiple wall base materials are lined up through joints,
With the adhesive layer arranged on the outer surface of the wall base,
Including a plurality of tiles fixed to the adhesive layer
The adhesive layer has an elastically cured portion obtained by curing a single elastic adhesive, and has elasticity that is embedded in the elastically cured portion and has a width straddling the joint and extends along the joint. , It is composed of a composite with a perforated sheet that does not include the adhesive layer part.
The thickness of the elastically cured portion is 1 to 10 mm.
The thickness of the perforated sheet is 0.2 to 1.0 mm.
Tile wall structure.
The tile wall structure according to claim 1, wherein the perforated sheet includes a knitted fabric or a woven fabric. The tile wall structure according to claim 1 or 2, wherein the joint has a sealing portion filled with a sealing material. The tile wall structure according to claim 1 or 2, wherein the joint is abutting the wall base material. A method for constructing tile walls
A step of applying a first elastic adhesive along the joint with a small width covering the joint to the joint of the wall base in which a plurality of wall base materials are arranged via joints.
A step of attaching a perforated sheet having a width straddling the joint, having elasticity extending along the joint, and not including an adhesive layer portion on the first elastic adhesive.
A step of applying a second elastic adhesive, which is the same adhesive as the first elastic adhesive, to the entire area of the wall base so as to cover the outer surface of the perforated sheet.
A step of attaching tiles on the second elastic adhesive before the second elastic adhesive is cured, and
A composite of an elastically cured portion in which the first elastic adhesive and the second elastic adhesive are cured and a single elastic adhesive is cured, and the perforated sheet embedded in the elastically cured portion. and a step of constituting the adhesive layer only including,
The thickness of the elastically cured portion is 1 to 10 mm.
The thickness of the perforated sheet is 0.2 to 1.0 mm.
Tile wall construction method. The method for constructing a tile wall according to claim 5, wherein the step of applying the second elastic adhesive is performed before the first elastic adhesive is completely cured. The method for constructing a tile wall according to claim 5, wherein the step of applying the second elastic adhesive is performed after the first elastic adhesive is completely cured.

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