JPH0354621B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Application Field The present invention relates to a joint material for pre-applying tiles to a formwork before concrete or mortar is poured.

BACKGROUND ART Conventionally, typical methods for constructing tile walls include the tile sheet method, the joint method, and the crosspiece method.

The tile sheet method is a construction method in which tiles are made into units using synthetic resin films, etc., and then attached to formwork.
The joint method is a method in which pre-molded joints made of rubber, styrofoam, etc. are attached to a formwork, and tiles are fitted and fixed into the formwork.

Furthermore, the crosspiece method is a construction method mainly used for large-sized special tiles, and is a method in which crosspieces are attached to a formwork according to the tile grouting, and the tiles are arranged along the crosspieces.

Problems to be Solved by the Invention However, the above tile sheet method is unsuitable for large tiles because dust etc. can get into the sheet and the tile joints cannot be adjusted.
It has drawbacks such as being time consuming and expensive.

In addition, in the joint method described above, the dimensions of the joints are fixed, so it is necessary to prepare several types of joints in advance according to the dimensions of the tiles to be used, which increases the labor and unit cost of the allocation process. Moreover, it has the disadvantage that it produces a lot of leftover material and is not particularly suitable for small tiles.

Furthermore, with the above-mentioned crosspiece method, since the crosspieces themselves do not have the ability to absorb and fix dimensional errors in the tiles, the tiles themselves must be fixed by nailing, etc., which makes cleaning up difficult and small. Not only is it unsuitable for tiles, but it also has the disadvantage of requiring a great deal of labor and time, such as applying tape to prevent the mortar paste from leaking from the gaps between the crosspieces and the tiles.

A somewhat improved version of this crosspiece method is a method in which elastic joint materials or joint materials with elastic members attached to them are attached to the formwork with adhesive according to the tile joint division, and tiles are fitted between these joint materials. There are problems such as the adhesive softening at high temperatures and reducing the holding power of the tiles, and the adhesive remaining on the formwork surface when removing the grout from the formwork, which must be cleaned. It was hot.

In addition, with the above-mentioned conventional pier method, especially when applied to SRC buildings, when erecting the formwork with the tiles pre-attached, the impact caused by the erecting and fixing work is large, making the tiles easy to fall off. A preventive measure was desired.

The present invention has been made to solve the above-mentioned conventional problems and to meet the demands.The purpose of the present invention is to prevent the tile holding power from decreasing even at high temperatures, and to maintain the shape of the mold after removing the joint material. To provide a joint material for attaching a tile first, which not only facilitates the cleaning of the frame but also can securely hold the tile against impact caused by the work of setting and fixing the formwork and prevent the tile from falling off.

[Structure of the Invention] Means for Solving the Problems The joint material for tile tipping of the present invention is provided with an elastic member made of soft urethane foam on the lower side of a hard member for side joints made of foamed polyethylene, and the elastic member A soft synthetic resin film is pasted on the lower surface of the hard member, and an adhesive layer is applied to the back surface of the hard member on the side of the formwork by undercoating with a synthetic rubber or synthetic resin primer and applying a synthetic resin adhesive. In addition, elastic members made of soft urethane foam are provided on both sides of a rigid member for vertical joints made of foamed polyethylene, and a soft synthetic resin film is attached to the outer surface of the elastic member. The invention is characterized in that an adhesive layer is further formed on the outer surface of the soft synthetic resin film.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the structure of the horizontal joint filler 1, which includes a hard member 2 basically made of foamed polyethylene,
An elastic member 3 made of soft urethane foam attached to the lower side of the hard member 2, a soft synthetic resin film 4 stuck to the lower surface of the elastic member 3, and a back side of the hard member 2 (formwork side). ) is composed of an adhesive treatment agent layer 5 applied to

The foamed polyethylene of the hard member 2 is as follows:
For example, PE Lite A-8 (trade name) manufactured by Inoue MTP is preferred, and as the soft urethane foam for the elastic member 3, for example, 818 (trade name) manufactured by Sekisui Urethane Kako is preferred.

Furthermore, as a method for forming the adhesive treatment layer 5, a synthetic rubber-based or synthetic resin-based primer is applied to the back surface of the foamed polyethylene hard member 2, dried, and a synthetic resin-based adhesive is applied thereon. It is applied.

Preferred examples of the above-mentioned primer include Rubiron 101 (trade name) manufactured by Toyo Polymer Co., Ltd., Cybinol SR-690 (trade name) manufactured by Saiden Chemical Co., Ltd., and Dymapond DA3233A (trade name manufactured by Nogawa Chemical Co., Ltd.). The product name SK Dyne 1700 manufactured by Co., Ltd. is preferred.

FIG. 2 shows the structure of the vertical joint material 6, which includes a hard member 7 basically made of foamed polyethylene, an elastic member 8 made of soft foamed urethane attached to both sides of the hard member 7, and the elastic member 7. It consists of a synthetic resin film 9 stuck to the outer surface of the synthetic resin film 9, and an adhesive treatment layer 10 further formed on the outer surface of the synthetic resin film 9.

The above-mentioned foamed polyethylene, flexible urethane foam, synthetic resin film, adhesive treatment agent, etc. are the same as those of the above-mentioned side joint material 1.

Incidentally, the synthetic resin film 9 or the adhesive treatment agent layer 10 of the vertical joint material 6 may be replaced with a ready-made adhesive tape (one-sided adhesive or double-sided adhesive).

Next, a method of pre-attaching tiles to a formwork using the horizontal joint material 1 and vertical joint material 6 will be described.

First, as shown in FIG. 3A, the cross-grain base material 1 is attached in accordance with the tile layout markings on the formwork 11.

Subsequently, as shown in FIG. 3B, the upper side of the tile 12 is pressed from below against the elastic member 3 of the upper side joint material 1, and by compressing this, the upper and lower side joint materials 1, 1 are compressed. Insert it in between. Therefore, as is clear from FIG. 3C, the tile 12 is supported by the hard member 2 of the lower side joint material 1, and does not fall off due to the elastic repulsive force of the elastic member 3 of the upper side joint material 1. It is maintained as follows.

Next, as shown in FIG. 4A, the vertical joint material 6 is pressed against and adhered to the side surface of the fitted tile 12, and the next tile 12 is attached to the upper and lower horizontal joint materials 1 as shown in FIG. 4B. , 1 while being moved laterally in the direction of the vertical joint material 6, and the vertical joint material 6 is sandwiched and bonded. At this time, the position of the tile 12 is adjusted using the elasticity of the elastic members 8 on both sides of the vertical joint material 6, and the vertical joint material 6 is attached to the formwork 11 with nails or staples 13 as shown in FIG. Fix it. Subsequently, the next vertical joint material 6 is pressed and adhered to the tile 12, and then the next tile 12
Install. In this way, vertical joint material 6 and tile 12
The tiles 12 are attached to the formwork 11 first by laying them out alternately.

In the above embodiment, the tile attachment using the horizontal joint material 1 and the vertical joint material 6 was explained, but the combination of the horizontal joint material and the vertical joint material of the present invention is not limited to this. Can be used in combination with joint material.

[Effects of the invention] (1) Since a synthetic resin adhesive is used as the adhesive treatment agent for the side joint material, it has excellent holding power especially at high temperatures, and the horizontal joint material does not slide down and tiles do not fall off. .

(2) When removing the side joint material after construction is completed, the formwork is easy to clean because no adhesive remains on the formwork surface or damaged side joint material remains.

(3) By forming an adhesive layer on both sides of the vertical joint material and adhering it to the tiles, the reliability of preventing tiles from falling off has been improved.

(4) The elastic force of the elastic members on both sides of the vertical joint material absorbs errors in tile dimensions and allows the joint width to be adjusted.

(5) Since it is now possible to move the tile laterally after it has been fitted, the efficiency of pre-installation work has improved.

[Brief explanation of drawings]

Figure 1 is a perspective view showing an example of the horizontal joint material, Figure 2 is a perspective view showing an example of the horizontal joint material, and Figure 3A is a sectional view of the horizontal joint material attached to the formwork. , Fig. 3B is a sectional view showing how the tiles are fitted, Fig. 3C is a sectional view showing how the tiles are fitted between the horizontal joint materials, and Fig. 4A is an explanation showing the installation work of the vertical joint materials. FIG. 4B is an explanatory view showing the horizontal movement and installation work of tiles, and FIG. 5 is a cross-sectional view showing the state of nailing vertical joint material. DESCRIPTION OF SYMBOLS 1... Horizontal joint material, 2... Hard member, 3... Elastic member, 4... Soft synthetic resin film, 5... Adhesive treatment agent layer, 6... Vertical joint material, 7... Hard member, 8
...Elastic member, 9...Synthetic resin film, 10...
... Adhesive treatment agent layer, 11 ... Formwork, 12 ... Tile.

Claims (1)

[Claims] 1. An elastic member made of soft urethane foam is provided on the lower side of a hard member for side joints made of foamed polyethylene, and a soft synthetic resin film is affixed to the lower surface of the elastic member. 1. A joint material for tile tip application, characterized in that an adhesive treatment agent layer is formed on the back surface of a member on the formwork side by undercoating with a synthetic rubber or synthetic resin primer and applying a synthetic resin adhesive. 2. An elastic member made of soft urethane foam is provided on both sides of a rigid member for vertical joints made of foamed polyethylene, and a soft synthetic resin film is affixed to the outer surface of the elastic member, and a soft synthetic resin film is further attached to the outer surface of the soft synthetic resin film. A joint material for pasting tiles, characterized by forming an adhesive layer.