JPH08108412A - Manufacture of wall material - Google Patents

Abstract

PURPOSE: To prevent the surface of tiles or stone materials from being made dirty caused by leakage of concrete at the placing period by placing concrete on tiles or stone materials with joint layers consisting of an addition reaction type silicone rubber. CONSTITUTION: Concrete stationary forming frames 9 attached on the side surface of tiles or stone material fixing frame 8 are removed, and brown square ceramic tiles are placed in the recesses of tiles or stone material fixing frame 8. When addition reaction silicone rubber is filled from a dispenser in the distances among tiles in such a degree that it becomes 10mm in height, the addition reaction silicone rubber is formed into a latticed configuration at the same height as the concrete placed. Next, the concrete stationary forming frame 9 removed is attached and fabricated on the side surface of tiles or stone material fixing frame 8. Furthermore, uncured concrete is poured therein from the upside to then be hardened. In consequence of these processes, the wall material obtained is aesthetically splendid having a design of brown square ceramic tiles and white joints.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a wall material on which tiles or stones are attached for the purpose of decorating or protecting the outer wall of a building.

[0002]

2. Description of the Related Art Tile or stone is widely used as a decorative material for outer and inner walls of buildings, floors and ceilings. Further, by providing tiles or stones on the surface of the wall, it is possible to exert effects such as preventing deterioration of concrete due to acid rain and the like, preventing contamination due to rain or dust, and preventing cracks. Tiles are classified into porcelain tiles, plaster tiles, and ceramic tiles depending on the water content and material. Moreover, the shape of the tile is square, rectangular, folding screen, single-sided,
There are various shapes such as double-sided and inner skirting, and it is selected depending on the design as a building and the type of wall mounting part.
On the other hand, stones are classified into natural stones and artificial stones. Natural stone materials include so-called granite such as biotite granite and muscovite granite,
So-called marble such as crystalline limestone and limestone colored with metal ions is representative, and there are various materials such as serpentine, basalt, andesite. The shapes of these natural stone materials include those with standardized dimensions such as tiles, and irregular ones that have been cut out. Artificial stone materials are made by combining crushed particles of natural stone with an inorganic binder such as cement (terazo), crushed particles of natural stone or inorganic powder such as aluminum hydroxide or calcium carbonate made of an acrylic or polyester organic material. Some are combined with a binder. The shapes of these artificial stones have standardized dimensions like tiles.

Out of these various stone materials, granite and porcelain tiles, which are excellent in stain resistance and acid resistance, are used for the exterior of the building, and the use of marble that is easily polluted and has poor acid resistance is avoided. There is. On the other hand, the interior of the building is not exposed to the outside air and is well maintained, so there is no need to consider the stain resistance and acid resistance of the tiles or stone materials, and the design can be freely selected according to the design.

The method of sticking tiles or stone materials is an adhesion method; a method of previously applying an adhesive to the base surface and then pressing and adhering the tile or stone materials, a pressure bonding method; after applying a concrete containing an admixture to the base surface in advance, It is classified into a construction method in which tiles or stone materials are pressed and pasted, a pre-attachment construction method; a method in which tiles or stone materials are arranged and fixed in advance in a mold and then concrete is placed. The bonding method and the crimping method have been performed by manually arranging and fixing tiles and stones one by one, but in recent years, unit tiles have been used. However, since both methods are not as easy as plastering or sheet-shaped wall decoration materials, they are rarely used for exteriors of large buildings, and are used for applications with a small installation area such as around water in a house. It is only about.

The pre-attachment method is a method of attaching tiles or stones at a construction site (site formwork tile pre-attachment method) and a method of attaching tiles or stones to a concrete panel (hereinafter referred to as PC board) and then assembling at a construction site. (Hereinafter, it is referred to as a PC curtain wall construction method). Of the two construction methods, the on-site formwork tile pre-attachment construction method is not suitable for the exterior of large buildings, and is only used for applications with a small mounting area. On the other hand, the PC carpenter method is factory-manufactured and fits into the industrialization of construction that is assembled on-site, which rationalizes production, reduces production costs, speeds up construction work, shortens construction period, and reduces construction costs. Characterized by its capability, it is especially suitable for the exterior of large buildings. In addition, it is highly responsive in terms of design, and is positioned as a trendy product. In addition, lightweight is required for convenience in construction and transportation, and lightweight foam concrete (ALC) has been developed and widely used as a material for PC boards.

The process of manufacturing a PC board on which tiles or stones are mounted, which is used in the PC curtain wall construction method, will be described with reference to FIG. First, the front surface of the tile or the stone material 2 is temporarily fixed toward the mold 4 side, and then the concrete 1 is poured from the rear surface direction of the tile or the stone material 2 (upward direction in the drawing) to be integrated simultaneously with curing. After curing concrete 1, the completed P
Take out the C plate from the mold, but use the P corresponding to the convex part of the mold.
The concave portion of the C plate is formed as a joint. At that time, there was a problem that the concrete 1 leaked from between the mold 4 and the tile or the stone material 2 to contaminate the surface of the tile or the stone material 2. In this case, it was necessary to polish the surface of the tile or the stone material 2 as post-processing. FIG. 5 is a schematic view showing a method of preventing leakage of the concrete 1 which is currently performed. Foam 5 formed in a lattice with a predetermined size
After embedding (made of polyethylene, polypropylene, polystyrene, polyurethane, polyvinyl chloride, etc.) in the formwork 4 (each lattice part corresponds to the joint part), place tiles or stones 2 and attach concrete 1 A pouring method has been proposed. However, this method has unevenness on the side surface of the tile or the stone material 2 and a gap is formed between the tile and the stone material 2 and the foam 5, and due to the nature of the foam, it is impossible to completely prevent the concrete 1 from leaking. could not. Further, with the diversification of design needs, it is required to color joints that are in harmony with the texture and color tone of tiles or stone materials, but in the conventional method, a large amount of expensive pigments are mixed in the concrete. It has not been put to practical use because it must be done.

[0007]

As described above, the conventional PC is used.
The method for producing a carton wall has drawbacks such that it leaks when concrete is cast and contaminates tiles or stones, and it is necessary to add a large amount of expensive pigment to the joint coloring. In addition, there is a defect that a crack occurs between the tile or the stone and the concrete due to the difference in the thermal expansion coefficient, and the tile or the stone finally comes off.

[0008]

The inventor has completed the present invention as a result of earnest research to solve the problems of these conventional methods for producing wall materials, and the tile or stone material is arranged at regular intervals. A composition containing a mixture of an organopolysiloxane having at least two aliphatic unsaturated groups in the molecule and an organohydrogenpolysiloxane having at least two hydrogen atoms in the molecule as a main component in the joint between them. A method for producing a wall material is characterized in that (hereinafter referred to as an addition reaction type silicone rubber) is formed as a joint, and then a concrete is placed on the back surface of these tiles or stone materials.

The present invention will be described in detail below with reference to the drawings. The present invention according to claim 1 comprises three steps. The first step is a preparatory step for fixing the addition reaction type silicone rubber as the joint, in which the surfaces of the tiles or stones are aligned to one side and arranged at intervals for providing the joints. As the arrangement method, tiles or stones 2 are arranged on a sheet 6 having an adhesive or an adhesive as shown in FIG.
As shown in FIG. 7, there is a method of arranging the tiles or the stone materials 2 in a mold 7 that matches the shape. Form 7
Materials such as metal, ceramics, polymer matrix (thermoplastic resin such as PET, PC, PE, PVC, thermosetting resin such as melamine resin, urea resin, epoxy resin) are freely selectable, but economical and A polymer matrix or wood is preferable when the two points of being lightweight are emphasized. The tiles or stone materials used in the present invention are porcelain tiles, plaster tiles, pottery tiles, various natural stone materials, various artificial stone materials, etc., and there are no restrictions on the material, shape, and allocation method, and the design and durability of the wall body. It can be arbitrarily selected according to the purpose of improving the property.

There are some stone shapes that have standardized dimensions and irregular shapes that have been cut out, and there is no limit to the shape due to the design design, but especially for industrially manufacturing PC boards. It is desirable that the dimensions are standardized.
The second step is a step of filling and forming a space between tiles or stones with an addition reaction type silicone rubber layer which is a joint material. The condition required for the joint material is to fix the tile or stone, and the fixing function must last for several decades. Further, since the PC board has a large weight and volume, the production capacity of the manufacturing equipment is limited, and it is desirable that the PC board can be operated at room temperature. For example, a method that requires heating for forming joints is not preferable.

[0011] Usually, the joints are white cement and color.
Inorganic matrix such as cement and water glass adhesive; organic matrix such as polyurethane, acrylic, nitrile butadiene rubber, styrene butene rubber, etc. are used. It is not possible to prevent the occurrence of cracks due to expansion and the falling of tiles or stone materials. Organic matrices cannot sustain adhesion for decades. on the other hand,
Silicone rubber has a silicon-oxygen bond (bonding energy of 10
It is a flexible matrix having a skeleton of 6 kcal / mol), and the binding energies of carbon-carbon bond and carbon-oxygen bond, which form the skeleton of a general organic matrix, are 85 respectively.
While kcal / mol and 81 kcal / mol are available, silicone rubber is a chemically stable compound. Therefore, the addition reaction type silicone rubber of the present invention is suitable as the joint material satisfying the above conditions.

Generally, the curing reaction of silicone rubber is classified into organic peroxide vulcanization type, condensation reaction type and addition reaction type. The organic peroxide vulcanizing type is basically a heat vulcanizing type (HT
Since it is V), it is not suitable for the production of PC boards, and the condensation reaction type has the drawbacks that acetic acid, amines and oximes are generated during curing, and the cured rubber itself has low strength. Therefore, as the joint material used in the present invention, room temperature addition reaction type silicone rubber is particularly suitable, and by using this, the joint can be formed at room temperature without generating acetic acid, amines, oximes and the like. The addition reaction type silicone rubber used in the present invention contains an organopolysiloxane having at least two aliphatic unsaturated groups as a main component, and an organohydrogenpolysiloxane or a platinum-based compound as an equivalent amount of the organopolysiloxane. And a reaction inhibitor such as acetylene alcohols. In some cases, additives such as a reinforcing agent made of silicon oxide powder, a heat-resistant agent, a flame retardant, a flow control agent, and an adhesion aid may be blended to have a function. In the present invention, in the case of addition reaction type silicone rubber, the composition and the compounding ratio of the main component, the cross-linking agent, the catalyst, the reaction inhibitor, the reinforcing agent and the additive are the material of the tile and the stone material, and the storage state of the uncured rubber. It can be appropriately selected depending on the storage time (pot life), the environment at the time of construction (season or weather), the setting of the curing temperature and the curing time, and the setting of the durability (durability years, durability temperature, etc.).

In the present invention, the joint coloring can be easily performed by dispersing the pigment or dye in the addition reaction type silicone rubber. Since the wall material obtained by the present invention is often exposed to sunlight and wind and rain for several decades, pigments having higher fastness than dyes are suitable for coloring. Further, in the case of coloring in white, it is not always necessary to disperse an expensive pigment, and an inorganic filler such as calcium carbonate or aluminum hydroxide may be added. Further, in the present invention, a flame-retardant filler such as calcium carbonate or aluminum hydroxide may be added to the silicone rubber to impart a function.

The addition reaction type silicone rubber used as the joint material preferably has self-adhesiveness with the tile or the stone material. In order to impart self-adhesiveness to the addition reaction type silicone rubber, a method of introducing a functional group having an adhesive effect to the organohydrogenpolysiloxane, adding an adhesion aid to the addition reaction type silicone rubber matrix, and the like. There is. Method of porcelain tile,
For those with highly polar molecules such as plaster tiles, pottery tiles and granite, functional groups with high polarity such as hydroxyl groups, and for those with low polarity molecules such as artificial marble, phenol, etc. It is preferable to introduce a functional group having low polarity. In the other method, it is preferable to add an organic titanate, a silane coupling agent or the like.

The curing method and curing conditions of the addition reaction type silicone rubber are determined by the compounding method of this rubber component. However, since the room temperature curing is desirable as a construction method, it is desirable to mix it with a formulation that enables the room temperature curing. The curing temperature and curing time in addition reaction type silicone rubber depend on the amount of catalyst added. The addition amount of the catalyst for curing the addition reaction type silicone rubber at room temperature should be 1 ppm or more in terms of platinum amount based on the organopolysiloxane having at least two aliphatic unsaturated groups in the molecule. Good. Further, in order to cure in a short time, the amount of the catalyst added may be increased, but since the platinum-based catalyst is expensive, adding more than necessary increases the cost. From the above viewpoints, the addition amount is 1 to 1000 of the organopolysiloxane having at least two aliphatic unsaturated groups in the molecule in terms of platinum amount.
About ppm is desirable.

The method for forming joints using the addition reaction type silicone rubber according to the present invention is the method according to claim 1 in which the addition reaction type silicone rubber is filled and cured only in the gaps of the tiles or stones obtained in the first step. A method according to claim 2, wherein a reactive silicone rubber is filled into the gap, cured, and laminated so as to cover the back surface of the tile or stone material. According to the method of claim 1 of the present invention, the method for filling the addition reaction type silicone rubber is the uncured addition reaction type silicone rubber.
A predetermined amount of uncured addition-reaction type silicone which is filled with the rubber in a gap for providing the joint obtained in the first step by using a dispenser or a silicone cartridge.
The rubber is stretched to a uniform height by using a doctor or a cauldron and filled in the gap. An uncured addition-reaction type silicone rubber is preliminarily formed into a string-like or lattice-like shape having the same size as the gap. Then, there is a method of filling the gap. Further, in these cases, the thickness of the addition reaction type silicone rubber layer to be filled may be arbitrarily determined depending on the thickness of the tile or the stone material. FIG. 8 is a schematic vertical cross-sectional view illustrating a step of forming an addition reaction type silicone rubber as a joint through a first step using a pressure sensitive adhesive or a sheet with an adhesive in the method of claim 1 of the present invention. is there. FIG. 9 is a schematic vertical cross-sectional view illustrating a step of forming an addition reaction type silicone rubber as a joint through the first step using a mold having a recess in the method of claim 1 of the present invention.

The formation of joints by the addition reaction type silicone rubber of claim 2 is as follows: -1: uncured addition reaction type silicone after filling the gap by the method
Sheet rubber is laminated to a predetermined height using a doctor or a cage, -2: an uncured addition reaction type silicone rubber sheet having a predetermined thickness as shown in FIG. (See FIG. 13): A sheet of uncured addition reaction type silicone rubber having a predetermined thickness and having protrusions of the same size as the gap to be filled is placed on the back surface of the tile or stone. There is a method of laminating. The thickness of the uncured addition-reaction type silicone rubber layer formed by, can be arbitrarily determined. FIG. 10 is a schematic vertical sectional view for explaining a step of forming an addition reaction type silicone rubber as a joint through a first step using a pressure sensitive adhesive or a sheet with an adhesive in the method of claim 2 of the present invention. . See also FIG.
FIG. 1 is a schematic vertical cross-sectional view illustrating a step of forming an addition reaction type silicone rubber as a joint through the first step using a mold having a recess in the method of claim 2 of the present invention.

The third step is the step of setting the concrete which is the main body of the PC board. The rear surface of the tile or the stone material 2 having the addition reaction type silicone rubber layer (joint material) 3 as shown in FIG. 7 obtained through the steps so far (the surface to be bonded to the base material constituting the wall material) is not yet formed. Place a curing concrete. The concrete is a mixture of cement and aggregate such as Portland cement, blast furnace cement, silica cement and the like as main components and water. An organic matrix such as acrylic is added to improve strength and water resistance. The composition and blending ratio of the concrete in the present invention can be freely selected according to the use and purpose.

The concrete is cast by pouring the uncured concrete from the back side with the surface of the tile or stone facing down. This pouring is carried out after the addition reaction of the addition reaction type silicone rubber of the joint has sufficiently proceeded to withstand the weight of the concrete. Since the uncured concrete is a liquid having a high fluidity, a mold is required, and it is necessary to install joint tiles or stones in the mold in advance and then pour the uncured concrete. At this time, as shown in FIG. 12, the mold is such that the tile or stone material fixing mold 8 serves as the bottom surface and the concrete fixing mold 9 surrounds the four side surfaces thereof. If these can be disassembled and assembled, the completed PC board can be easily removed from the mold. The method of using the formwork in the present invention includes a method of using different formwork in the case of using the first step and a method of using the formwork in the third step, a method of using the formwork only in the third step, and the same formwork in both steps. Can be used. The method among them is the most economically advantageous, and if the form can be disassembled as shown in FIG. 12, the wall material can be obtained more rationally.

[0020]

According to the present invention, it is possible to prevent the leakage of the concrete or the surface of the tile or the stone when the concrete is cast and to contaminate the surface of the tile or the stone. A wall material is provided which can solve the problems of conventional wall materials such as cracks caused by the difference in the thermal expansion coefficient, and eventually the cracks.

[0021]

EXAMPLES The embodiments of the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. (Embodiment 1) Tile (or stone) fixing form 8 shown in FIG. 12 (wooden, square with a side of 50.5 mm and a depth of 5.0 mm, with 10 rows arranged vertically and horizontally at intervals of 3.0 mm. Remove the concrete fixed formwork 9 attached to the side of the lined formwork), and in the concave part of the tile (or stone) fixing formwork 8 (formwork 7), one side is 50.5mm ± 0.3mm in height 1
Manually assemble square brown porcelain tiles of 0.0mm ± 0.3mm 1
When 00 pieces were installed, the tiles were arranged with a space of 3.0 mm. At this time, the surface of the tile (the surface with the design)
Was installed facing down. This work is the first step.

On the other hand, a silicon resin matrix KE-1940-50-A [trade name of Shin-Etsu Chemical Co., Ltd.] containing organopolysiloxane having at least two aliphatic unsaturated groups in the molecule as a main component is used. Platinum-based catalyst CAT-PL-2 in 100 parts by weight
0.6 part by weight of [Shin-Etsu Chemical Co., Ltd.] is added to a kneader and kneaded for 3 minutes, and further a silicon resin containing an organohydrogenpolysiloxane having at least two hydrogen atoms as a main component. Matrix ・ KE-1940-50-B
100 parts by weight of [Shin-Etsu Chemical Co., Ltd.] and 50 parts by weight of calcium carbonate powder, Whiten SB [Shiraishi Calcium Co., Ltd.] and silane coupling agent, FES-1 [Shin-Etsu Chemical Co., Ltd. Brand name] 1.2 parts by weight were put into a kneader and kneaded for 5 minutes to obtain an addition reaction type silicone rubber. The kneader was kneaded while circulating cooling water adjusted to about 10 ° C. and cooling. The height of the addition reaction type silicone rubber was about 10 mm from the dispenser at the interval between the tiles installed in the first step [form 8 (form 7 in FIG. 12)].
[Height from the bottom of the concave portion] of the addition reaction type silicone rubber, the addition reaction type silicone rubber is formed in a grid shape at the same height as the installed tile, and the addition reaction type silicone rubber as shown in FIG. It was confirmed that tiles filled as joints were obtained. This was left at room temperature for 24 hours. This is the second step.

After 24 hours, the addition reaction type silicone rubber was completely cured after the addition reaction was completed. Separately, 100 parts by weight of Portland cement, 100 parts by weight of river sand with an average particle size of about 1.0 mm,
100 parts by weight of tap water was mixed with a mixer to obtain an uncured concrete. Then the concrete removed in the first step
The mold 9 for fixing the grate was attached to the side surface of the form 8 (form 7) for fixing the tile or the stone, and then the uncured concrete was poured from above to be hardened to have a thickness of 200 mm. Further hardening of the concrete was observed after 48 hours, and when the mold was removed, a wall material as shown in FIG. 1 was obtained. This work is called a third step. The resulting wall material was beautiful with a design of brown porcelain tiles and white joints. Moreover, the joint was adhered to the porcelain tile without any gap, and there was no stain due to leak of concrete.

(Embodiment 2) By the same operation as the first step of Embodiment 1, one side is 50.5 mm ± 0.3 mm and the height is 10.0 mm.
When 100 pieces of ± 0.3 mm square brown porcelain tiles were manually installed, the tiles were arranged at 3.0 mm intervals. At this time, the surface of the tile (the surface having the design) was placed downward.

On the other hand, a silicon resin matrix KE-1940-50-A (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.) containing organopolysiloxane having at least two aliphatic unsaturated groups in the molecule as a main component is used. Platinum-based catalyst CAT-PL-2 in 100 parts by weight
0.6 part by weight of [Shin-Etsu Chemical Co., Ltd.] is added to a kneader and kneaded for 3 minutes, and further a silicon resin containing an organohydrogenpolysiloxane having at least two hydrogen atoms as a main component. Matrix ・ KE-1940-50-B
100 parts by weight of [Shin-Etsu Chemical Co., Ltd.] and 50 parts by weight of calcium carbonate powder, Whiten SB [Shiraishi Calcium Co., Ltd.] and silane coupling agent, FES-1 [Shin-Etsu Chemical Co., Ltd. Brand name] 1.2 parts by weight were put into a kneader and kneaded for 5 minutes to obtain an addition reaction type silicone rubber. The kneader was kneaded while circulating cooling water adjusted to about 10 ° C. and cooling.

The addition reaction type silicone rubber was placed on a polybutylene terephthalate sheet (thickness: 0.3 mm) to a thickness of 10 mm.
Was laminated with a calendar. Then, this was press-molded to obtain a sheet (FIG. 13) having a grid-like convex portion having a height of 5 mm and a width of 3 mm. This was cut into a square with a side of 508 mm, the grid-like convex portions of this sheet were inserted into the spaces between the tiles obtained in the first step, and laminated on the back surface of the tile. Then, it is left at room temperature for 24 hours, and the addition reaction type silicone rubber 3 is laminated on the back surface of the tile 2 as shown in FIG.
It was confirmed that the resin was completely cured while being fixed to the (form 8). This is the second step.

Separately, 100 parts by weight of Portland cement,
100 parts by weight of river sand having an average particle size of about 1.0 mm and 100 parts by weight of tap water were mixed with a mixer to obtain an uncured concrete. Next, the concrete fixing mold 9 removed in the first step is attached to the side of the tile (or stone) fixing mold 8 (form 7) and assembled, and then the uncured concrete is poured from above to a thickness of 200 mm. It was hardened and cured. 48 more
After a lapse of time, hardening of the concrete was observed, so when the mold was removed, a wall material as shown in FIG. 2 was obtained. This work is called a third step. The resulting wall material was beautiful with a design of brown porcelain tiles and white joints. Moreover, the joints are adhered to the porcelain tiles without any gaps.
There was no stain due to the leak of the gut.

[0028]

INDUSTRIAL APPLICABILITY According to the present invention, concrete is added to a tile or a stone material having a joint layer made of addition reaction type silicone rubber.
It prevents the concrete from leaking and contaminating the surface of the tile or stone by pouring the concrete.
Advantages such as easy joint coloring at low cost, cracking due to difference in thermal expansion coefficient between tile or stone and concrete, and finally preventing falling of these tiles or stone It is possible to obtain a wall material having the structure, and it is possible to reduce the construction cost of the building and improve the durability.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional sketch diagram of a wall material obtained by the manufacturing method according to claim 1 of the present invention.

FIG. 2 is a schematic vertical sectional view of a wall material obtained by the manufacturing method according to claim 2 of the present invention.

FIG. 3 is a schematic vertical cross-sectional sketch diagram of a wall material obtained by a conventional manufacturing method.

FIG. 4 is a schematic vertical sectional view illustrating a step of placing concrete using a mold in a conventional manufacturing method.

FIG. 5 is a schematic vertical cross-sectional sketch diagram illustrating the step of placing concrete using a lattice-shaped foam and a mold in the conventional manufacturing method.

FIG. 6 is a schematic vertical cross-sectional sketch diagram illustrating a step of arranging tiles or stones on a sheet material having an adhesive or an adhesive in the manufacturing method of the present invention.

FIG. 7 is a schematic vertical cross-sectional sketch diagram illustrating a step of fixing a tile or a stone material in a mold having a recess in the manufacturing method of the present invention.

FIG. 8 is a schematic vertical cross-sectional sketch diagram illustrating a step of forming an addition reaction type silicone rubber as a joint through a first step using a pressure-sensitive adhesive or a sheet with an adhesive in the method of claim 1 of the present invention. .

FIG. 9 is a schematic vertical cross-sectional sketch diagram illustrating a step of forming an addition reaction type silicone rubber as a joint through the first step using a mold having a recess in the method of claim 1 of the present invention.

FIG. 10 is a schematic vertical cross-sectional sketch diagram illustrating a step of forming an addition reaction type silicone rubber as a joint through a first step using a pressure-sensitive adhesive or a sheet with an adhesive in the method of claim 2 of the present invention.

FIG. 11 is a schematic vertical cross-sectional view illustrating a step of forming an addition reaction type silicone rubber as a joint through a first step using a mold having a recess in the method of claim 2 of the present invention.

FIG. 12 is a schematic perspective view of a mold which can be disassembled in order to facilitate removal of the completed wall material in the manufacturing method of the present invention.

FIG. 13 is an uncured addition reaction type silicone in Example 2.
FIG. 3 is a schematic vertical cross-sectional view of a rubber sheet-like object.

[Explanation of symbols]

1 concrete, 8 (for fixing tile or stone) formwork, 2 tile or stone,
9 Concrete fixing formwork. 3 Addition reaction type silicone rubber layer (joint layer), 4 Formwork in conventional manufacturing method, 5 Lattice foam, 6 Adhesive or adhesive-attached sheet, 7 (in the manufacturing method of the present invention ) Formwork,

Claims (2)

[Claims] 1. Arranging tiles or stones at regular intervals,
The joint between these is filled with a composition containing a mixture of an organopolysiloxane having at least two aliphatic unsaturated groups in the molecule and an organohydrogenpolysiloxane having at least two hydrogen atoms in the molecule as a main component. And then hardening, and then casting concrete on the back surface of these tiles or stones. 2. The method for producing a wall material according to claim 1, wherein the composition is filled with joints and cured, and the composition is laminated so as to cover the entire back surface of the tile or stone material.