JPS6139467B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing mortar walls of buildings using a building base material.

Recently, construction base materials in which foam is adhered to the surface of plywood have been proposed for the purpose of saving labor and improving the performance of mortar walls in buildings.

The construction method using this architectural base material is to fix it on structural base materials such as pillars and interlayers, apply mortar using a trowel, push the mortar into the air bubbles on the surface, and use it as an anchor. By fixing them together, they formed a mortar wall. However, the adhesion of the surface of the building base material to the foam was simply physical adhesion due to an anchoring effect, and thus the adhesion was weak.

In addition, the size and depth of the bubble pores on the surface of the foam vary, making it difficult to completely fill all the bubble pores with mortar manually using a trowel. If the size of the adhesive is small, air pockets may partially form within the bubble recesses, and the bonding area is essentially small, resulting in weak adhesion and causing cracking and peeling.

The present invention aims to solve the problems of the above-mentioned conventional methods of constructing mortar walls using building materials.

The present invention provides a substrate 1 made of inorganic or organic material.
A structural base material for pillars, studs, etc. is made by laminating a foam board 4 having a closed cell structure with a large number of cell holes 3 on the surface via an adhesive 2. After one side of the substrate of the architectural base material is fixed so that it is in contact with the base material, mortar 10 is applied to the surface of the base material for construction, and when constructing the mortar wall, the foam board shape of the base material for construction is preliminarily applied. A method of constructing a mortar wall using a construction base material, in which a sealer 8 such as latex, emulsified asphalt, or synthetic resin is applied to the surface of an object 4, and when the sealer 8 is semi-dry, mortar is applied. It is.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention illustrated in the accompanying drawings.

As the substrate 1, a plate-like body made of an inorganic or organic material, or a mixture of inorganic and organic materials, such as plywood, fiberboard, wood chip board, gypsum board, cement board, etc., is also used. The substrate 1 is subjected to actual processing such as 2 or 4 sides of the end surface of the substrate 1, such as final finishing, as necessary, to improve the adhesion of the end surface and to prevent the occurrence of unevenness when constructing the base material for construction. It also prevents

Rubber-based, vinyl acetate resin-based,
Adhesive 2 such as epoxy resin is appropriately selected and applied to the entire surface.

A foam plate 4 having a closed cell structure and having cell holes 3 on the surface is pasted onto the surface of the substrate 1 coated with the adhesive 2. The foam plate 4 is made of synthetic resin such as vinyl chloride resin and its copolymer resin, thermoplastic resin such as polyethylene, polystyrene, and polyurethane, or thermosetting resin such as phenol resin, silicone resin, and epoxy resin, and further added as necessary. It is made by adding a foaming agent and foaming it by any method. The foam plate 4 may be any foam having a closed cell structure, and is not limited to the resin foam described above. Moreover, by pasting the foam plate-like material 4, the heat insulation effect is improved.

The top edge of the two or four sides of the foam plate 4 attached to the surface of the substrate 1 via adhesive 2 may be set at any angle ( It may be chamfered (preferably at an angle of about 45°).

The architectural base material obtained as described above is fixed onto a structural base material such as a frame 5 and studs 6 made of metal or wood using nails 7, bolts, adhesives, or the like.

Architectural base materials are successively applied using the same method. Furthermore, if necessary, apply joint treatment to the butt joints using an appropriate caulking agent. In addition, when using a construction base material with a chamfered upper edge of the foam plate-like material 4, the butted joint portion is formed in a V-groove, so a caulking agent is appropriately applied in the V-groove to perform joint treatment.
NBR, SBR, MBR,
A sealer 8 such as rubber latex, vinyl acetate resin, or acrylic resin is applied using a coating tool such as a sprayer or a roll brush. The sealer 8 is applied so as to completely fill the bubble pores 3 on the surface of the foam plate-like material 4 to make the surface substantially smooth.

After applying the sealer 8, the sealer 8 is left until it becomes semi-dry, and at the time of semi-drying, mortar 10 is applied to the entire surface by a method such as spray painting.

Furthermore, a reinforcing material such as latex, synthetic resin, or glass fiber may be added to and mixed with the mortar 10.

The function of the sealer 8 will be explained as follows.

Since the air bubbles 3 on the surface of the foam plate 4 are filled and the surface becomes substantially smooth, the mortar 10 and the foam plate 4 are in close contact with each other without any air pockets being formed therebetween. As a result, the bonding area between the mortar 10 and the foam plate 4 substantially increases. Although it is an additional element, the deep and large hole 9 of the bubble concave hole is left as it is, so the mortar 10 bites into this hole 9.
Mortar 10 adheres tightly to foam plate 4 due to the anchoring effect.

When the mortar 10 is coated on the surface of the semi-dry film coated with the sealer 8, the moisture and alkaline water in the mortar 10 cause the sealer 8
swells and its coating becomes mixed with the mortar 10 at the interface, so that the adhesive interface becomes dense.

As mentioned above, as the adhesive interface becomes denser,
An intermolecular attractive force acts between the molecules in the mortar aqueous solution in the mortar 10 and the molecules in the sealer 8, and the adhesion between the mortar 10 and the sealer 8 becomes stronger.

In addition to the above-mentioned adhesive interface becoming dense and the intermolecular attraction acting, an additional element is added, the anchoring action of the mortar 10 in the holes 9 left on the surface of the foam plate 4, and the mortar 10 adheres tightly. Power is multiplied synergistically.

The latex or synthetic resin used for the sealer 8 and the mortar 10 is selected in consideration of the adhesion, miscibility, alkali resistance, durability, etc. between the foam plate 4 and the mortar 10.

According to the method of the present invention, mortar 10
However, since it adheres well to the foam plate 4 through the sealer 8, the mortar 10 does not crack or peel off, and at the same time, it has the effect of maintaining the heat insulation properties of the foam plate 4. It is.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of the abutting portion of a substrate 1 of a mortar wall constructed by the method of the present invention, and FIG. 2 is an explanatory diagram of the interlayer relationship of the mortar wall by the method of the present invention. 1: Substrate, 2: Adhesive, 3: Cellular recess, 4: Foam plate, 5: Rim, 6: Stud, 7: Nail, 8:
Sealer, 9: hole, 10: mortar.

Claims (1)

[Claims] 1. Architectural use made by bonding a foam plate-like material 4 with a closed cell structure having a large number of cell holes 3 on the surface of an inorganic or organic substrate 1 via an adhesive 2. After fixing the base material on the structural base material such as columns and studs so that the substrate surface of the architectural base material is in contact with it, apply mortar 10 to the surface of the architectural base material,
When constructing a mortar wall, a sealer 8 such as latex, emulsified asphalt, or synthetic resin is applied to the surface of the foam board 4 as a base material for construction in advance, and when the sealer 8 is semi-dry, the mortar 10 is applied. A method for constructing mortar walls using an architectural base material characterized by: