Accessory tile installation method

Abstract

To provide an accessory tile installation method that can install accessory tiles at corners of a structure while suppressing cracks in accessory tiles by using an appropriate adhesive.SOLUTION: An accessory tile installation method for installing accessory tiles at corners of a structure using an adhesive includes a testing process, an adhesive application process, and a tile attachment process. In the tile attachment process, the accessory tiles are attached to the corners of the structure using a permanent adhesive selected in the testing process. In the testing process, a load is applied from a tip of a first surface toward a second surface of the accessory tile at a displacement rate of 0.1 mm / min, and an adhesive that does not cause cracks in the accessory tile until a relative displacement between the accessory tile and the structure reaches 1 mm is set as the permanent adhesive.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the installation of tiles, and more specifically, to a method for installing accessory tiles by using an adhesive that suppresses cracking of accessory tiles at the corners of a structure.

Background Art

[0002] Exterior wall materials are often installed on the door walls of detached houses and apartment buildings for purposes such as improving the appearance and reinforcing the wall body. As exterior wall materials, siding and exterior wall tiles are mainly used. Among these, siding is a thin plate material made of materials such as cement, aggregates, wood, and metal, which is stacked on the surface of the wall body and can be installed at a relatively low cost. On the other hand, exterior wall tiles are made of materials obtained by firing stone or clay at high temperatures, and are higher in strength and durability than siding, and also improve durability such as preventing the neutralization of concrete.

[0003] Conventionally, mortar or an adhesive has been used to install tiles on the surface of a wall body. And various improved techniques have been proposed for installing tiles. For example, Patent Document 1 proposes a "finishing material adhesion method" in which mortar is adhered to the surface of a base adjustment layer before it is completely cured, and then a tile is adhered to the surface of the mortar.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When installing tiles on a wall body such as a door wall, two types of tiles are used: flat tiles (hereinafter referred to as "flat tiles") and functional tiles (for example, "bent tiles" in an L shape in side view and "folding screen bent tiles" in a fan shape). FIG. 10 is a diagram showing a door wall on which tiles are installed. (a) is a photographic view showing a door wall on which flat tiles TG and functional tiles TR are installed, and (b) is a cross-sectional view of the door wall on which flat tiles TG and functional tiles TR are installed cut along a horizontal plane. As shown in this figure, the flat tiles TG are installed on the flat surface of the door wall, while one of the functional tiles TR is installed so as to abut on two surfaces (front and side) at the corner of the door wall. Conventionally, when a so-called shearing force acts in the direction of the arrow shown in FIG. 10(a), the functional tile TR may crack.

[0006] An object of the present invention is to provide a method for installing a functional tile that can install a functional tile at a corner of a structure while suppressing cracking of the functional tile by using an appropriate adhesive.

Means for Solving the Problem

[0007] The present invention focuses on the point of installing a functional tile at a corner of a structure by using an adhesive that has been previously confirmed to have predetermined performance, and is made based on an unprecedented idea.

[0008] The method for installing the fitting tile of the present invention is a method for installing a fitting tile at a corner of a structure with an adhesive, and includes a test process, an adhesive application process, and a tile pasting process. The fitting tile has a first surface and a second surface, and is an L-shaped tile when viewed from the side. The test process is a process having a test body construction process, a displacement meter installation process, a tile loading process, and a material selection process, and a test using a test adhesive and a fitting tile is performed. In the test body construction process of the test process, the fitting tile is arranged so that the first surface abuts on one surface forming the corner of the test body and the second surface abuts on the other surface, and the fitting tile is installed at the corner of the test body with the test adhesive. In the displacement meter installation process, a displacement meter is installed on the fitting tile installed at the corner of the test body. In the tile loading process, a test load is applied to the fitting tile at a displacement speed of 0.1 mm / min in the direction from the tip of the first surface toward the second surface. In the material selection process, a test adhesive that does not cause cracks in the fitting tile until the relative displacement between the fitting tile and the test body reaches 1 mm is selected as the adhesive for actual installation. In the test body construction process, the test adhesive is applied with a "5 mm toothed trowel" and then compressed to install the fitting tile. In the adhesive application process, the adhesive for actual installation selected by the test process is applied to the fitting tile or the corner of the structure. In the tile pasting process, the fitting tile is arranged so that the first surface abuts on one surface forming the corner of the structure and the second surface abuts on the other surface, and then the fitting tile is pasted on the corner of the structure.

[0009] The method for installing the fitting tile of the present invention can also be a method of using an adhesive for actual installation having an elongation rate of 150% or more of the film physical properties defined in JISA5557.

Advantages of the Invention

[0010] The method for installing the fitting tile of the present invention has the following advantages. (1) Since an adhesive whose predetermined performance has been confirmed in advance is used, the occurrence of cracks in the fitting tile can be suppressed. (2) The test for confirming that it has the specified performance is relatively easy, and as a result, the total construction cost including the cost related to the test can be reduced.

Brief Description of the Drawings

[0011]

Figure 1

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Figure 10

Embodiments for Carrying Out the Invention

[0012] An example of the implementation of the method for installing functional tiles according to the present invention will be described with reference to the drawings. The method for installing functional tiles according to the present invention is a method for installing functional tiles on a structure, and can be implemented for structures made of various materials such as ALC structures and structures made of extruded cement panels. For the sake of convenience, an example of a concrete structure (hereinafter simply referred to as a "concrete structure") will be described here.

[0013] The method for installing functional tiles according to the present invention is a method for constructing a structure as shown in FIG. 1, that is, a method for installing the functional tile 110 at the "corner" of the concrete structure 130. Here, the "corner" is the outer part where one wall surface (hereinafter referred to as the "front surface 131") and the other wall surface (hereinafter referred to as the "side surface 132") are orthogonal, such as a so-called exposed corner.

[0014] FIG. 2 is a diagram schematically showing the "bent tile" among the functional tiles 110. (a) is a side view thereof, and (b) is a front view seen in the direction of the arrow (white arrow) shown in FIG. 2(a). FIG. 3 is a perspective view schematically showing the "folding screen bent tile" among the functional tiles 110. As shown in these figures, the functional tile 110 is a member in which a plate member having a "first surface 111" and a plate member having a "second surface 112" are connected so as to be substantially orthogonal. For example, the bent tile has an L-shape in side view as shown in FIG. 2(a), and the folding screen bent tile has a fan shape in side view as shown in FIG. 3. The first surface 111 has ends on both sides when viewed in the axial direction (the vertical direction in FIG. 2(a)). Similarly, the second surface 112 also has ends on both sides when viewed in the axial direction (the horizontal direction in FIG. 2(a)). For the sake of convenience, here, among the ends of the first surface 111, the side opposite to the connecting portion with the second surface 112 (the upper end in FIG. 2) will simply be referred to as the "tip 111T".

[0015] As described above, in the conventional case of installing the fitting tile 110 at the corner of the concrete structure 130 using an adhesive, cracking of the fitting tile 110 has sometimes been confirmed. Therefore, in the fitting tile installation method of the present invention, a specific adhesive is used. That is, the fitting tile 110 is installed at the corner of the concrete structure 130 using an adhesive that has been confirmed in advance to satisfy predetermined requirements (hereinafter referred to as "selection requirements"). In addition, as will be described later, in order to confirm these selection requirements, a test of the adhesive may be conducted. Therefore, in order to distinguish between the test use and the actual installation use, the adhesive for test use will be referred to as "test adhesive 140", and the adhesive used for actual construction will be referred to as "actual installation adhesive 120".

[0016] FIG. 4 is a flowchart showing the flow of the main steps of the fitting tile installation method of the present invention, and FIG. 5 is a step diagram showing the "actual installation step" of the present invention. As shown in FIG. 4, the fitting tile installation method includes an "actual installation step (Step 300 in FIG. 4)", and may further include a "test step (Step 200 in FIG. 4)". As described above, in the fitting tile installation method, the actual installation adhesive 120 that satisfies the selection requirements is used. Therefore, in a case where it has been confirmed in advance that the actual installation adhesive 120 satisfies the selection requirements, the actual installation step can be directly performed without carrying out the test step. Note that "satisfying the selection requirements" should be confirmed before the actual installation step and at a location different from the actual installation step. On the other hand, when the performance of the adhesive has not been confirmed, it is advisable to perform the test step using the test adhesive 140 and then perform the actual installation step. This test step is also before the actual installation step and is carried out at a location different from the actual installation step. That is, the test step only needs to be carried out once initially and does not need to be carried out for each installation work of the fitting tile 110. Of course, when it is desired to newly test the performance of the adhesive, the test step can be carried out at any timing. In any case, it is not necessary to perform the actual installation step immediately after the test step (of course, it may be carried out immediately), and it is not always necessary to perform the test step in order to perform the actual installation step.

[0017] In carrying out this installation work, as shown in Fig. 5(a), a base adjusting material 170 is applied to the surface (front surface 131 and side surfaces 132) of the concrete structure 130, and then the installation adhesive 120 is applied to the surface of the base adjusting material 170 (Step 310 in Fig. 4). As this base adjusting material 170, a mortar-based base adjusting material (such as CM-2 defined in JISA6916) or an organic-based base adjusting coating material can be used. In addition, instead of (or in addition to) the surface of the concrete structure 130, the installation adhesive 120 can also be applied to the inside of the fitting tile 110, and the base adjusting material 170 can be omitted according to the situation, such as when the unevenness of the surface of the concrete structure 130 is small.

[0018] When the installation adhesive 120 is applied to the inside of the fitting tile 110 (or the surface of the concrete structure 130), as shown in Fig. 5(b), the fitting tile 110 is arranged so that the first surface 111 of the fitting tile 110 abuts against the front surface 131 of the concrete structure 130 and the second surface 112 of the fitting tile 110 abuts against the side surface 132 of the concrete structure 130. Then, as shown in Fig. 5(c), the fitting tile 110 is affixed to the corner of the concrete structure 130 in that state (Step 320 in Fig. 4).

[0019] As described above, the installation adhesive 120 used in the installation work is an adhesive that has been previously confirmed to meet the selection requirements. Here, the selection requirements are the requirement that "when a shear load is applied to the fitting tile 110 adhesively fixed to the corner of the concrete structure 130, no crack occurs in the fitting tile 110 until the relative displacement between the fitting tile 110 and the concrete structure 130 reaches 1 mm." However, the fitting tile 110 is adhesively fixed in the state shown in Fig. 5(c). Moreover, in this case, the shear load is in the direction from the tip 111T of the first surface 111 of the fitting tile 110 toward the second surface 112 (particularly, the direction from above to below), and is applied at a displacement speed of 0.1 mm / min. As a result of repeated tests and research by the inventor of the present invention, it has been found that an adhesive having an elongation rate of "film physical properties" defined in JISA5557 of 150% (more desirably 200%) or more meets the selection requirements.

[0020] Figures 6 and 7 are flowcharts showing the main process flow of the "testing process" in the present invention, and Figure 8 is a step diagram showing the testing process. In Figure 8, a cross-sectional view is shown on the left side and a front view is shown on the right side. In this testing process, a test is conducted to select the adhesive 120 for the main installation used in the main installation process.

[0021] When conducting the testing process, first, a candidate test adhesive 140 is selected (Step 210 in Figure 6). Next, as shown in Figure 8(a), the test adhesive 140 is used, and a component tile 110 with a thickness of, for example, 7 mm is attached to the corner of the concrete test piece 150 to construct a test piece (Step 220 in Figure 6). At this time, after applying the test adhesive 140 to the surface of the concrete test piece 150 using a "5 mm toothed trowel", the component tile 110 may be attached by pressing the component tile 110 to compress the test adhesive. Since the test here is more advantageous when the adhesive is thicker, a uniform test result can be obtained by making the thickness constant with a 5 mm toothed trowel. However, when the structure made of ALC is the target in the main installation process, it is desirable to construct the test piece by attaching the component tile 110 to the corner of the test piece made of the same material as the structure related to the main installation process, such as using the ALC structure. Also, similar to the main installation process, after arranging the first surface 111 of the component tile 110 to contact one surface (front surface 151 of the test piece) of the concrete test piece 150 and the second surface 112 of the component tile 110 to contact the other surface (side surface 152 of the test piece) of the concrete test piece 150, the component tile 110 is attached.

[0022] When constructing the test piece, as shown in Fig. 8(b), a displacement meter 160 is installed on the utility tile 110 (Step 230 in Fig. 6). After curing for a predetermined period (e.g., 28 days) under a predetermined environment (e.g., an environment of 23°C and 50% RH), a shear test is performed (Step 240 in Fig. 6). Specifically, as shown in Fig. 8(c), a shear load is applied at a displacement speed of 0.1 mm / min in the direction from the tip 111T of the first surface 111 to the second surface 112 of the utility tile 110. As shown in Fig. 8(c), the second surface 112 of the utility tile 110 may be configured to be freely displaceable with respect to the test load, such as supporting the concrete test piece 150 by the support base SP at a position deviated from the utility tile 110. In the cross-sectional view (left figure) of Fig. 8(c), the support base SP on the front side is omitted, and the support base SP on the back side is shown by a dashed line. Then, the shear load is continuously applied until the relative displacement between the utility tile 110 and the concrete test piece 150 reaches a predetermined displacement threshold value (specifically, 1 mm) (Step 250 in Fig. 6).

[0023] When the relative displacement between the utility tile 110 and the concrete test piece 150 reaches the displacement threshold value, the cracking of the utility tile 110 is visually confirmed. Then, when cracking is confirmed (Yes in Step 260 of Fig. 6), after reselecting the test adhesive 140 (Step 210 in Fig. 6), a series of steps are repeated (Steps 220 to 260 in Fig. 6). On the other hand, when no cracking is observed even after applying the shear load until the displacement threshold value is reached (No in Step 260 of Fig. 6), the test adhesive 140 is selected as the in-situ adhesive 120 (Step 270 in Fig. 6).

[0024] In FIG. 6, an example is shown in which a shear load is continuously applied until the relative displacement between the fitting tile 110 and the concrete specimen 150 reaches a displacement threshold value (specifically, 1 mm). Instead of this, as shown in FIG. 7, the test process can also be to continuously apply a shear load until cracks occur in the fitting tile 110. In this case, if the relative displacement at the time of crack occurrence (the relative displacement between the fitting tile 110 and the concrete specimen 150) is less than the displacement threshold value (specifically, 1 mm) (No in Step 260 of FIG. 7), after selecting a new test adhesive 140 (Step 210 of FIG. 7), a series of steps are repeated (Steps 220 to 260 of FIG. 7). On the other hand, if the relative displacement at the time of crack occurrence is equal to or greater than the displacement threshold value (Yes in Step 260 of FIG. 7), the test adhesive 140 is selected as the in-situ adhesive 120 (Step 270 of FIG. 7).

[0025] (Test Results) As described above, the inventors of the present invention have conducted various tests. FIG. 9 shows a part of the results obtained by actually performing the above-described test process. In the table, the "elongation rate of film physical properties" in the test results is the result of the test specified in JIS A5557, and similarly, the "displacement at cracking" in the test results is the relative displacement at the time of cracking in the fitting tile 110 (the relative displacement between the fitting tile 110 and the concrete specimen 150). Also, the numerical values related to the compositions constituting each example and comparative example indicate parts by weight.

[0026] As shown in Fig. 9, in Comparative Example 1 and Comparative Example 2, the displacement at the time of cracking is less than the displacement threshold value (specifically, 1 mm), so the selection requirements are not satisfied. On the other hand, in Examples 1 to 3, the displacement at the time of cracking is equal to or greater than the displacement threshold value, so the selection requirements are satisfied. That is, Comparative Example 1 and Comparative Example 2 cannot be selected as the adhesive 120 for the main installation, but Examples 1 to 3 can be selected as the adhesive 120 for the main installation. Also, as can be seen from this figure, any adhesive with an elongation rate of the film physical properties of 150% (more preferably 200%) or more satisfies the selection requirements. Therefore, it is more desirable to select an adhesive with an elongation rate of the film physical properties of 150% (more preferably 200%) or more as the adhesive 120 for the main installation.

Industrial Applicability

[0027] The method for installing the fitting tile of the present invention can be used not only for the door walls of single-family houses and apartment houses, but also for the outer walls of schools, public facilities, event sites, or various other wall bodies.

Explanation of Signs

[0028] 110 Fitting tile 111 First surface 111T Tip (of the first surface) 112 Second surface 120 Adhesive for main installation 130 Concrete structure 131 Front surface 132 Side surface 140 Adhesive for test 150 Concrete test body 151 Front surface of test body 152 Side surface of test body 160 Displacement meter 170 Base adjustment material CS Concrete structure JT Joint material TG Plain tile TR Fitting tile SP Support stand

Claims

1. A method of installing a fitting tile at a corner of a structure with an adhesive, comprising: The fitting tile has a first surface and a second surface, and is L-shaped or fan-shaped in side view; A test step of performing a test using a test adhesive and the fitting tile; An adhesive application step of applying the installation adhesive selected by the test step to the corner of the fitting tile or the structure; A tile attachment step of arranging the fitting tile such that the first surface abuts on one surface forming the corner of the structure and the second surface abuts on the other surface forming the corner of the structure, and then attaching the fitting tile to the corner of the structure; The test step includes: A test body construction step of arranging the fitting tile such that the first surface abuts on one surface forming the corner of the test body and the second surface abuts on the other surface forming the corner of the test body, and installing the fitting tile at the corner of the test body with the test adhesive; A displacement gauge installation step of installing a displacement gauge on the fitting tile installed at the corner of the test body; A tile loading step of applying a test load to the fitting tile at a displacement speed of 0.1 mm / min in a direction from the tip of the first surface toward the second surface; A material selection step of selecting the test adhesive that does not crack on the fitting tile until the relative displacement between the fitting tile and the test body reaches 1 mm as the installation adhesive based on the result of the tile loading step; In the test body construction step, the test adhesive is applied with a 5-mm toothed trowel and then compressed to install the fitting tile; A method for installing a fitting tile, characterized in that.

2. The installation adhesive has an elongation rate of the film physical properties specified in JIS A5557 of 150% or more. The method for installing a fitting tile according to claim 1, characterized in that.

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