JP2601386B2 - Tiled curved surface material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for a tiled curved surface in which a tiled curved surface of a building can be obtained by simple construction.

[0002]

2. Description of the Related Art In general, as a method of obtaining a tiled curved surface of a building, a curved formwork is assembled after reinforcing reinforcement is poured, ready-mixed concrete is poured in, a formwork is removed after a curing period of several days, and an uneven portion is mortared. A method has been adopted in which a tile is adhered with a tile adhesive or a tile cement, after being adjusted by painting to form a curved tiled base. Such a method is considerably troublesome in the construction method, and therefore requires a long construction time and high cost.

[0003]

An object of the present invention is to provide a material for a tiled curved surface capable of obtaining a tiled curved surface by a simple dry method without requiring such a complicated construction method.

[0004]

In order to achieve the above object, a material for a tiled curved surface according to the present invention comprises an inorganic hardening component, a fiber
The main ingredients are fiber, aggregate, and hydrates having a flexible structure.
Waterproof on the surface of ceramic-type inorganic plates that can be dry-bent
Resin coating that imparts adhesiveness and adhesion of tile adhesive
It is characterized in that a layer is provided, and a tile is stuck on the curved surface with a tile adhesive, and a tiled curved surface can be easily obtained by performing dry construction according to a curved surface foundation of a building.

[0005] The ceramic-based inorganic plate in the present invention includes:
Slag gypsum cement board, calcium silicate board, asbestos slate board, wood chip cement board, wood wool cement board, GR
C, CFRC, and other fiber-reinforced cement boards, other non-combustible ceramic building materials, and their asbestos-free substrates can be used.

[0006] As the inorganic hardening component of the raw material of the inorganic plate, ordinary portland cement, granulated blast furnace slag, gypsum dihydrate, gypsum hemihydrate, anhydrous gypsum, siliceous raw material, calcareous raw material and the like can be used.

The fibers of the raw material of the inorganic plate include pulp, wood wool, wood chips, hemp, polypropylene fiber, polyethylene fiber, polyvinyl alcohol fiber, polyamide fiber, polyacryl fiber, and other organic fibers, rock wool, glass wool, carbon fiber, various types of fibers. Inorganic fibers such as inorganic whiskers and other mineral fibers can be used.

[0008] Aggregates as raw materials for inorganic plates include reactive aggregates such as fly ash, silica fume and diatomaceous earth, perlite, radiolite, sila powder, calcium carbonate, talc, bentonite, sepiolite, zeolite, edinite, Non-reactive aggregates such as wollastonite can be used.

When these inorganic plates are used as a substrate in the present invention, they are very flexible and can be easily bent even in a dry system, and at the same time, cracks must not be formed on the front and back surfaces during bending.

Conventionally, a fiber-reinforced gypsum plate (trade name: F
G board, RG board), fiber reinforced slag gypsum cement board, etc., all undergo a process of immersing in water and absorbing water before bending the board, and then gradually bending the board.

[0011] The mechanism by which bending can be performed after immersion in water is as follows. By adding water, the bonding strength is weakened by dissolving the crystals in the case of a gypsum board, and the hydrate gel is converted into a xerogel in the case of a ceramic board. This is due to the fact that the material is softened by changing from a hydrogel to a hydrogel, and the shape at the time of bending is held by the reinforcing fibers.

[0012] In comparison with these, the ceramic-based inorganic plate of the present invention is characterized in that it has a water content as seen in the case of a conventional inorganic plate.
Wet bending that immerses in water and absorbs water to make it easier to bend and then bends
Normal dry state without any grinding process
So-called dry bending is possible, and no cracks occur on the front and back surfaces after ^the bending.

[0013] To obtain a ceramic-based inorganic board carrying such characteristics, the structure of the hydrate itself is a component, rich in elasticity flexible even when moisture-free flexible
It is necessary to pay attention to reinforcing fibers and aggregates.

A preferable characteristic value for providing these properties in a well-balanced manner is a bulk specific gravity of 1.0 ± 0.3 g.
/ Cm ³ , and the bending strength did not result in destruction due to large deflection when measured with JIS A 1408 No. 3 test piece.
Eventually, she slides off the support. No yield point is found even when the width of the specimen is doubled with respect to the length direction and the measurement is performed with less deflection. Even with such a flexible board, if the entire board is too soft, it will hinder the construction, so the impact value is 15 mm or less (JIS
A 5429) is necessary.

[0015] In order to provide the ceramic-based inorganic plate of the present invention with preferable characteristics, it is necessary to selectively produce a highly flexible hydrate, and at the same time, to select the type and amount of the reinforcing fiber,
It is necessary to mix and match the types and amounts of aggregates.

As the hydrate, calcium aluminate trisulfate hydrate (hereinafter abbreviated as TSH) is most suitable. TS obtained at room temperature and steam curing
H has a needle-like crystal structure, has a characteristic of expanding during the crystal growth process, and can easily generate a relatively large crystal. It is considered that TSH exhibits strength due to the entanglement of crystals and the effect of filling voids during the crystal growth process, and is particularly effective in bending strength.

As a method for selectively producing a large amount of TSH, there is a production method described in the specification of Japanese Patent Publication No. 31468/1989 by the present inventor. By considering the type and amount of the aggregate, an inorganic plate having the above characteristics can be obtained.

Among them, the role of the organic fiber is to prevent cracks on the front and back surfaces when the inorganic plate is bent in a dry manner, to impart shape retention, to supplement flexibility, and to consider nonflammability and cost. It is necessary to determine the blending amount.

The role of the aggregate is to improve workability and increase the surface hardness during the production of the inorganic plate, and it is necessary to consider the particle size distribution, shape and form of the aggregate to be mixed. In particular, when relatively long organic fibers are used, the particle size distribution, shape and form of the aggregate to be mixed greatly affect the workability in the production of the inorganic plate. That is, when the compounding amount of the organic fiber having a long fiber length is increased without adding asbestos,
Since the proportion of other organic fibers cannot be increased in consideration of noncombustibility, freeness is increased and workability during papermaking is reduced. In order to make up for this, it is necessary to reduce the freeness by adding an aggregate having a relatively small particle size. Actually, the type of organic fiber, fiber length, compounding amount,
Various combinations are conceivable depending on the type, the particle size distribution, the shape, and the form of the aggregate.

The method for forming the inorganic plate in the present invention may be any of sheet forming (round net type, long net type), compression molding, extrusion molding, molding and the like.

The thus-obtained ceramic-type inorganic plate capable of being bent in a dry manner is provided with a synthetic resin coating layer for imparting waterproofness and adhesion of a tile adhesive. The coating case
It can be obtained by coating the synthetic resin material by a usual method of applying a paint , and as a synthetic resin , acrylic resin, urethane resin, epoxy resin, SBR and other latex, vinyl acetate resin, ethylene vinyl acetate resin, vinyl Urethane, PVA and the like are used. A flexible resin such as a latex-based resin or an ethylene-vinyl acetate-based resin is preferable from the viewpoint that when the substrate is bent, cracks do not occur and the substrate is easily followed.

[0022] As a method of coating, the performance of both the adhesion of the waterproof and tile adhesives, may be obtained by further coating layer by a single coating, but by two or more times painting You may make it obtain with two or more coating layers. In addition, among those coating resins, tiles
It is also possible to incorporate silica sand or other aggregates to improve the adhesiveness of the adhesive .

The coating layer ceramic-based non-machine Shitsuban formed a on the surface, further being bent to the required diameter by a method such as through a three-roll mill, cement adhesive or tiles for a tile on the curved surface Thus, the tile for the curved surface of the present invention is obtained.

FIG. 1 shows the shape of the tiled curved surface material of the present invention.
As shown in the figure, a ceramic inorganic plate 1 having a synthetic resin coating layer 2 formed on its surface is bent, and a tile 4 is attached to the curved surface with a tile adhesive 3. In addition, in order to physically improve the adhesiveness of the tile adhesive, there is a method of forming an uneven pattern on the surface of the ceramic-based inorganic plate as shown in FIG. When the tile is attached, the bent inorganic plate may spring back. Therefore, as shown in FIG. 3, the inorganic plate is fixed to a base material such as a steel plate 5 which has been bent in advance, and then the tile is removed. There is also a method of sticking.

The material for a tiled curved surface of the present invention obtained by the above method is attached in a dry manner with nails, screws or the like according to the curved surface foundation of the building to construct the tiled curved surface of the building.

[0026]

EXAMPLES Next, the ceramics-based inorganic plate having a coating film layer on its surface according to the present invention will be specifically described with reference to Examples and Comparative Examples.

[0027]

[Example 1] 80 parts of granulated blast furnace slag, 20 gypsum gypsum
Parts, slaked lime 1 part, asbestos 5 parts, pulp 5 parts, perlite 8
, 10 parts of TSH, 2 parts of organic synthetic fiber, 3 parts of calcium carbonate (average particle size 2 microns), and 3 parts of calcium carbonate (average particle size 10 microns), water is added to form a slurry, which is used for molding by a paper machine. A plate was formed by adding 50 ppm of a coagulant. After the plate was left at 20 ± 5 ° C. for 48 hours, the temperature was raised stepwise.
6mm thick ceramics system after drying and cooling after removal from steam curing
An inorganic plate was obtained. Acrylic emuljo on the surface of this plate
Formulation consisting of 100 parts (solid content 45%) and 60 parts of water
Was applied at a rate of 120 g / m ² and dried. Moreover
Acrylic emulsion (solid content 45%) 100
120 g of a composition consisting of 30 parts by weight, 30 parts of silica sand and 300 parts of water
/ M ² and dried.

[0028]

Example 2 Among the mixed material of Example 1, microfibrillated cellulose 1 part instead of asbestos 5 parts, by using the rock wool 2 parts, others non-asbestos ceramics of the same size in the same manner as in Example 1 A base inorganic plate was obtained. On the surface of this plate, carried out
The same coating as in Example 1 was applied.

[0029]

Comparative Example 1 The same coating as in Example 1 was applied to the surface of a commercially available fiber-reinforced gypsum board having a thickness of 5 mm .

Comparative Example 2 The same coating as in Example 1 was applied to the surface of a commercially available fiber-reinforced slag gypsum cement board having a thickness of 6 mm.
Dressed.

Each plate obtained in the above Examples and Comparative Examples
The material was subjected to a physical property test, and the results are shown in Table 1.

[0031]

[Table 1]

As shown in the table, Example 1 and Example 2
The plate material obtained in the above has suitable substrate properties as a ceramic inorganic plate provided with a coating layer on the surface in the present invention,
The plate materials of Comparative Examples 1 and 2 are not held. Comparative Example 1 and Comparative Example 2 also showed bending characteristics (indicated by the minimum radius when bending was performed through three rolls).
Is almost impossible to bend in a dry manner, and has only wet bending properties after immersion in water.

[0033]

As described above, the tiling curved surface material of the present invention can be easily obtained with a tiled curved surface by being directly mounted on a construction site according to a curved surface foundation of a building. Therefore, the construction period is significantly shortened and the cost is reduced as compared with the conventional construction method.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an example of a tiled curved surface material according to the present invention.

FIG. 2 is a cross-sectional view of an example of the tiled curved surface material of the present invention.

FIG. 3 is a cross-sectional view of an example of the tiled curved surface material of the present invention.

FIG. 4 is a perspective view of an example of the tiled curved surface material of the present invention.

[Explanation of symbols]

1 Ceramic Inorganic Plate 2 Synthetic Resin Coating Layer 3 Tile Adhesive 4 Tile 5 Steel Plate

Claims (1)

(57) [Claims] 1. An inorganic hardening component, fiber, aggregate, and flexible.
Dry bending process mainly composed of hydrates with crystalline structure
Waterproof and tile adhesive on the surface of a ceramic-based inorganic plate
A synthetic resin coating layer that gives adhesion to the
Tiled curved timber, characterized in that affixed tile by tile adhesive.