JP2001355328A - Method for bonding-finishing waterproof facing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for bonding and finishing a waterproof facing material which is excellent in tracing performance of cracking of a backing and temperature movement of substrate panel and tiled layers, and improves adhesive strength among a facing material such as a tile, a waterproof layer, and the backing, without using a lath. SOLUTION: The waterproof layer is formed by applying an elastomeric coating film waterproof material 2 on a slant surface of the backing 1, and decorative tile materials 4 are stuck thereto by means of an elastomeric adhesive 3. The elastomeric coating film waterproof material 2 is available for coating on the slant surface or a vertical surface of the backing 1, and can trace cracking and temperature movement of 0.5 mm or more. The elastomeric adhesive 3 should be one which can be applied onto the elastomeric coating film waterproof material 2, and the decorative tile materials 4 should be one which has the adhesive strength of 40 N/cm2 or more.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof / adhesive finishing method applicable to the interior and exterior of buildings.

[0002]

2. Description of the Related Art General exterior walls, slope walls, bathrooms, and the like of buildings using concrete, ALC, extruded cement boards, and the like.
Toilet, kitchen, pool and the like are usually provided with decorative materials such as tiles and stones, and in that case, it is necessary to take waterproof measures on the surface of the base material. In particular, in the case of an inclined wall in which the base material is formed on an inclined surface, the area is larger than the vertical surface and the amount of rainwater is large, so that complete waterproof performance is required.
Further, even on the inner walls and floors, places where water is used, such as bathrooms, toilets, kitchens, and indoor pools, must be finished to a high degree of watertightness and waterproofness when attaching cosmetics.

[0003] As such waterproofing means for the surface of the base material, for example, (a) forming an asphalt waterproofing layer,
(B) forming a hydrated solidification type coating film, (c) using a siliceous coating waterproofing material, (d) applying a cement paste containing an adhesion enhancer as shown in FIG. It is known that a mortar containing water is applied to form a waterproof layer. In the case of (d), the adhesion enhancer to be used is usually an acrylic or ethylene-vinyl acetate emulsion or a synthetic rubber latex type, and the mixing amount depends on the specifications specified by the manufacturer.
In the case of (a), (b) and (c), the same mortar as the mortar containing the adhesion enhancer used in (d) is used as the mortar applied on the coating film or the waterproof material.

[0004] The adhesion performance of the decorative material in the above conventional example is (d) ≒
The order of (c)>(b)> (a) is as follows. When a dark tile or the like is used as a decorative material, thermal stress increases, so that even if the waterproof property is somewhat sacrificed, (d) is used, or When applying mortar thinly, take measures to prevent the falling off of the cosmetic material. The total coating thickness of the mortar is 10 mm or more and 20 mm or less as standard. When the coating thickness is more than 20 mm, the decorative material is easily peeled off. Therefore, as shown in FIG.
(2-3φ, 100-150 □) with anchor B,
Take measures to prevent falling off, such as embedding in mortar C. In the case of a tile, it is stretched so as not to form voids on the back surface. If efflorescence (crystallized white substance) still occurs from the tiled surface, a silane-based or other permeable water-absorbing agent is applied.

[0005]

The base material such as a sloped wall is provided with a waterproof treatment to prevent water leakage. However, the adhesive strength of the waterproof layer is reduced, and the floating of the decorative material occurs.
In severe cases, there are cases where peeling is observed. The peeling positions are all generated at the interface of the waterproof layer, such as the interface between the base material and the waterproof layer (including mesh and nonwoven fabric) and the interface between the mortar and the waterproof layer. Since the sloped wall receives more solar radiation than a general vertical wall, a large thermal stress acts on the sloped wall, and the waterproof layer applied to the foundation concrete may peel off. Especially for tiles,
Due to thermal expansion and contraction, repeated shear stress acts on the interface with the waterproof layer, thereby promoting peeling. In addition, in many cases, the expansion and contraction joints are not constructed according to the standard due to the relationship with the waterproof layer, and do not properly fulfill the waterproof function.

[0006] Among the conventional methods, the method of tiled on the polymer cement waterproofing as shown in Fig. 2 has poor followability to the cracks of the base material and the temperature movement of the base panel and the tiled layer, and tends to leak water. In addition, there is a problem that a shift is likely to occur to cause separation. In addition, the polymer cement waterproofing, lath mortar (penetrating through the waterproof layer), and the method of tiling on it, also deteriorate the cracking of the base material and the temperature movement of the base panel / tiling layer. SU, which damages, causes corrosion of lath
There is a problem that the use of the S mesh is expensive.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has been made in consideration of the following problems.
Provided is a waterproof / combination material adhesive finishing method which is excellent in followability of a tiled layer with respect to a temperature movement, and improves the adhesive strength between a decorative material such as a tile, a waterproof layer and a base material without using a lath or the like. The purpose is to:

[0008]

[MEANS FOR SOLVING THE PROBLEMS] To achieve this object
As a specific means of the present invention, the present invention
-When finishing by bonding decorative materials such as stone,
Apply an elastomeric coating waterproofing material on the surface of the base material,
To prevent the decorative material from being adhered to the top with an elastomeric adhesive
The gist is a water-based cosmetic material adhesive finishing method. In addition, this prevention
In the water / cosmetic material adhesive finishing method, the elastomer
-Waterproof coatings can be applied to sloped and vertical surfaces of the base material.
Crack and movement of 0.5mm
That the elastomeric adhesive is
Elastomer applied to concrete inclined and vertical surfaces
-Can be applied on waterproof coatings, and has a bonding strength of 4
0N / cm ²It is the gist of the above.

According to the present invention, a combination of formation of a waterproof layer with an elastomeric coating film waterproofing material and upholstery with an elastomeric adhesive is used to follow the cracking of the base material and the temperature movement of the base panel / tiling layer. And the adhesiveness of the decorative material can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a waterproofing / adhesive finishing method according to the present invention will be described with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a base material, the surface of which is formed on an inclined surface.
Is applied, and a tile decorative material 4 is stuck thereon with an elastomeric adhesive 3.

As a specific work procedure, first, the base material 1
Surface adjustment. This surface adjustment includes a step of adjusting the unevenness of the base material 1 and removing the fragility, and the crack 1a,
It includes a sealing step for a concrete joint (not shown) and a joint for inducing cracks, and a drying step.

Next, a coating film waterproofing step is performed. In this method, an elastomeric coating waterproofing material 2 is applied on the surface of the base material 1 in an appropriate amount, and if necessary, a urethane-based
A silane-based primer (not shown) is applied. The elastomeric coating waterproofing material 2 is a material that can be applied to the inclined surface and the vertical surface of the base material 1 and that can follow the movement of the crack 1a of 0.5 mm or more and the movement.

[0013] Is it hardened into rubber after the coating waterproofing process?
Stick the tile decorative material 4 with the elastomeric adhesive 3
I can. In this attaching step, the elastomeric adhesive 3
After curing, apply joint mortar 5 if necessary
You. Furthermore, a sealing material (not shown) is installed on the expansion joint.
You. The elastomer-based adhesive 3 is used for the elastomer-based coating.
It is a material that can be applied on the membrane waterproofing material 2.
Adhesive strength is 40N / cm ²The one having the above is used.

An experiment was conducted to confirm the effect of the present invention. Table 1 shows the experimental results.

[Table 1] Here, the adhesive strength of the coating film waterproofing material is mortar / waterproofing material /
The results of an adhesion test using a test sample having a layer structure called a tile adhesive are shown. The adhesive strength of the tile adhesive indicates a result of an adhesive test using a test piece having a layer configuration of mortar / adhesive / tile.

According to the test results, the cases of Examples 1 to 3 were good with respect to crack followability. That is, 1
Combination of a two-component urethane-based waterproof coating and a two-component modified silicone-epoxy tile adhesive (Example 1), a one-component modified silicone-based waterproof coating (primer coating), and two components In combination with a modified silicone-epoxy tile adhesive (Example 2), and in combination with a one-component urethane coating waterproofing material and a one-component urethane-epoxy tile adhesive (Example 3). is there.
The adhesive strength of the tile is required to be 40 N / cm ² or more. However, Examples 1 and 2 are 190 N / cm ² , and Example 3 is 140 N / cm ^2. High adhesive strength was obtained.

In the above-described embodiment, the case where the surface of the concrete base is an inclined surface has been described. However, the present invention can be applied to a case where the surface of the concrete substrate is a vertical surface. The present invention can be applied to an inner wall or a floor of a pool or the like.

[0017]

As described above, according to the present invention,
The use of an elastomeric material as the coating film waterproofing material allows for good conformability to the underlying concrete. Therefore, the waterproofing layer has high reliability and does not cause water leakage failure. By using a base material, the adhesiveness between the foundation concrete and the decorative material is improved, and therefore, the decorative material does not peel or peel off,
Effects such as high safety can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of an adhesive finishing method for a waterproofing and cosmetic material according to the present invention.

FIG. 2 is a schematic sectional view showing an example of a conventional method.

FIG. 3 is a schematic sectional view showing an example in which a wire mesh is used in a conventional method.

FIG. 4 is a schematic cross-sectional view showing an example of waterproofing processing by a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1: Base material 2: Elastomer coating waterproofing material 3: Elastomer adhesive 4: Tile decorative material 5: Joint mortar

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Nachi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Masaki Yamamoto 2-1 Oiwake, Hiratsuka-shi, Kanagawa Prefecture Yokohama Rubber Co., Ltd. F-term in Hiratsuka Factory (reference) 2E110 AA14 AA27 AB22 AB23 BA12 CA03 DA12 DC21 GA34W GB13W GB23Y GB28W GB53Z GB54Z

Claims (3)

[Claims] The present invention relates to a case in which a decorative material such as a tile or a stone material is adhered to a surface of a base material to finish it. An elastomer-based waterproofing material is applied to the surface of the base material, and an elastomer-based adhesive is applied thereon. A waterproof / combination material adhesive finishing method characterized by bonding a cosmetic material through the intermediary. 2. The waterproofing and cosmetic material adhesive finish according to claim 1, wherein said elastomeric coating film waterproofing material is a material which can be applied to an inclined surface and a vertical surface of a base material, and can follow a crack and a movement of 0.5 mm or more. Construction method. 3. The elastomeric adhesive can be applied on an elastomeric coating waterproofing material applied on an inclined surface and a vertical surface of a foundation concrete, and has a decorative material adhesive strength of 40 N / c.
The method for bonding and finishing a waterproof / cosmetic material according to claim 1, which is at least m ² .