JPH0227500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lightweight tile panel with sufficient practical strength.

Generally, the construction of tiles requires a considerable amount of time and skill, so many tile panels in which a large number of tiles are arranged and fixed on a substrate in advance have been proposed, and some of them are already on the market. Since these ordinary tile panels are constructed by being applied on a wall surface or a structural material, the tile panel itself is not particularly required to have high strength. By further advancing the simplicity and labor-saving of this dry method,
There is a demand for a tile panel itself that has sufficient self-supporting strength as a wall material or the like. For example, tiled precast concrete plates are known, but they are extremely heavy and extremely inconvenient for transportation and construction.

Under these circumstances, the inventors of the present invention have conducted various studies on ways to reduce the weight of tile panels while maintaining practical strength, and first, they have developed a method to reduce the weight of the tile panel, which corresponds to the back side of the conventional tile-cast precast board. Attempts were made to make it lighter by hollowing it out and making it into a lattice shape, but although this achieved the goal of reducing weight, it was found that it could not be put to practical use because the strength was significantly reduced. Therefore, as a result of further research, the inventor of the present invention used cement containing an expansible admixture and reinforcing short fibers as the material for the lattice backing and substrate, and reinforced it with continuous metal wires to make it lightweight. The inventors have discovered that it is possible to achieve both the objectives of practical application and practical strength at the same time, and based on this knowledge, the present invention has been completed.

Next, the present invention will be explained according to the accompanying drawings. FIG. 1 is a perspective view showing one example of the tile panel of the present invention, and FIG. 2 is a cross-sectional view, in which the tile panel 1 of the present invention has a grid. It is composed of a shaped backing base material 2 and a large number of tiles 4, 4, . and,
The backing base material has a content of 5 to 22 parts per 100 parts by weight of cement.
A cement mortar molding containing part by weight of an expandable admixture and 1 to 20 parts by weight of short reinforcing fibers,
This is reinforced with a continuous metal wire 5 buried in place.

FIG. 3 is a sectional view showing another embodiment of the present invention, in which the backing base material 2 is configured in the form of a grid with a bottom, and the tiles 3 are in contact with the portion 6 corresponding to the bottom of the cutout portion 3. The location is fixed.

In the present invention, the joint width of the lattice-like portion of the backing base material is preferably smaller for weight reduction, as long as practical strength is achieved. However, in an embodiment in which the missing portion 3 penetrates, the width of the lattice-like portion of the base material is at least as large as the joint width of the tile at the end of the base material in order to adhere the tile 4. At least three times the joint width of the tile is required at the non-end portions of the tile. These can be easily selected by those skilled in the art by considering the desired practical strength and the materials used. In this way, the backing base material of the present invention can be reduced in weight by about 1/3 or more, usually about 1/2 to about 2/3 or more, compared to the conventional base material without the missing portion 3. becomes.

The shape of the missing portion 3 of the base material is usually a columnar shape with a square or rectangular cross section, but may be other shapes such as a prismatic shape, a cylindrical shape, a cone shape, a hemispherical shape, etc., and is not particularly limited. In the case where the missing portion 3 penetrates as described above, the tile panel 1 is formed by adhering one tile 4 to each tile 4 to the missing portion 3. On the other hand, missing part 3 is tile 4
There is no such restriction in particular in an embodiment having a bottom portion in contact with.

The backing base material and the main material of the cement used in the present invention can be arbitrarily selected from among hydraulic substances generally referred to as cements. Examples of such materials include portland cement, early strength cement, alumina cement, blast furnace cement, silica cement, and fly ash cement, but portland cement is particularly preferred.

In addition, the expanding admixture added to this cement is a material that has the property of forming a hardened product different from cement and expanding after the cement mortar has hardened to a certain extent. For example, Denka CSA (trade name, Denki Kagaku Kogyo Co., Ltd.) and Asano Zipcal (trade name, Nippon Cement Co., Ltd.) containing calcium sulfo aluminate components, and Expan (trade name) containing calcium oxide components. and Onoda Cement Co., Ltd. The amount of the admixture used ranges from 5 to 22 parts by weight based on 100 parts by dry weight of cement. If this amount is less than 5 parts by weight, the effect will not be sufficient, and if it exceeds about 22 parts by weight, the strength of the mortar itself will decrease and cracks will tend to occur. Reinforcing short fibers include short fibers used in conventional resin/short fiber composites, such as inorganic fibers such as asbestos, rock wool, mineral wool, ceramic wool, silica fibers, metal fibers, carbon fibers, and glass fibers. , as well as organic synthetic fibers and natural fibers. The length of these fibers is about 2 to 60 mm, preferably about 3 to 50 mm. The short fibers are used substantially uniformly mixed into cement mortar, and the amount used is in the range of 1 to 20 parts by weight, and usually about 2 to 15 parts by weight, per 100 parts by weight of cement. . In the present invention, it is desirable that the adhesion affinity with hardened cement is higher than that of steel fibers, and from this point of view, asbestos, rock wool, mineral wool, ceramic wool, silica fibers, steel wool, etc. are preferable.

Further, as the continuous metal wire 5 used in the present invention, there are iron wire rod, steel wire rod, iron alloy wire rod, nickel alloy wire rod, and other alkali-resistant metal wire rods. It may be a long fiber body made of a material having strength equivalent to these metal wires.

The required number of continuous metal wires 5 are buried in the lattice portion of the lining base material, but it is preferable to bury them in two directions, as shown in FIG. 1. In addition, when this continuous metal wire 5 is buried in one plane, it is preferable to choose its position away from the tile 4 as shown in FIG. 2, that is, at a position close to the back surface of the tile panel 1. .

To manufacture the tile panel of the present invention, a predetermined amount of cement, an expansible admixture, and reinforcing short fibers are added with conventional additives such as water reducing agents and plasticizers, and aggregate as necessary, and then an appropriate amount of Add water and knead.
A so-called cement mortar is prepared and poured into a pouring frame provided on a large number of tiles 4 arranged at predetermined intervals with the back side facing up. At this time, the continuous metal wire 5 can be embedded by stretching it at a suitable location.

Next, the molded body obtained in this way is cured,
By hardening the cement components and bonding them with the short fibers,
Furthermore, it causes the cement mortar to expand. This curing is carried out as follows: (a) After molding, the molding is allowed to stand (for example, for 4 to 6 hours or more), and then steam-cured in a steam atmosphere at 40 to 60°C for 3 to 6 hours or more.

(b) After molding, leave for 12 to 24 hours and then cure in water for 2 days or more, or (c) After molding, leave for 4 to 6 hours or more, then leave in a humid air for 5 days or more at a relative temperature of 70% or more. This is done by taking care of yourself.

The tile panel of the present invention has the above-mentioned configuration, and is reinforced with reinforcing short fibers and continuous metal wires. In addition, due to the action of an expanding admixture, the hardened mortar expands, and the short fibers and continuous metal wires expand. Since tension is applied to the tube, a contraction force is generated as a reaction force after the expansion is completed, and the tube is further strengthened, and despite having a lattice-like lightweight structure, it exhibits sufficient strength for practical use.

In the tile panel of the present invention, if adiabatic hardening or sound absorbing effect is required, a fiber material such as rock wool or glass fiber, or a heat insulating material or sound absorbing material 7 such as foamed plastic is used as shown in FIGS. 2 and 3. It is advantageous to fill the missing areas 3 of the backing substrate 2 as shown.

Next, the present invention will be explained in more detail with reference to Examples.

Example 100 parts by weight of ordinary Portland cement, 17.6 parts by weight of expansion agent (Denka CSA#20), 100 parts by weight of silica sand, 1 part by weight of water reducing agent (trade name Mighty 150),
Using cement mortar made by kneading 5 parts by weight of asbestos short fibers and 33 parts by weight of water, it is poured onto the back of the arranged tiles, molded and cured (in water and in the air).
I made a tile panel. A large number of approximately 10 x 10 cm ceramic tiles 4 were used as decorative materials. A hard steel wire of 1 mmφ is used as the continuous metal wire 5,
The grid was buried 5mm from the back of the tile panel. The weight of the tile panel is 58.5Kg, and the weight of the backing substrate with the missing part 3 is
The steel wire weighed 42.3 kg and had dimensions of 90 x 180 x 3 cm in thickness. There were 36 steel wires in the transverse direction and 36 in the longitudinal direction.
Eighteen pipes were buried at substantially equal intervals. The missing portion 3 of the backing base material had a shape that penetrated the back surface of the tile 4, and the volume ratio of the lattice-like portion to the missing portion 3 was about 51:49. Despite its relatively light weight, this tile panel had sufficient strength for practical use as a free-standing decorative wall material. Incidentally, a tile panel of the same size without the missing portion 3 weighs approximately 104 kg.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view showing an example of a tile panel of the present invention having a large number of missing portions on the backing base material, and FIGS. 2 and 3 are cross-sectional views of the tile panel of the present invention. In the figure, reference numeral 2 indicates a backing base material, 3 indicates a missing portion, 4 indicates a tile, 5 indicates a continuous metal wire, and 7 indicates a heat-insulating sound-absorbing material.

Claims (1)

[Scope of Claims] 1. A tile panel consisting of a lattice-like or bottomed lattice-like backing base material and a large number of tiles arranged and fixed across the cutout part or in contact with the bottom of the cutout part. cement material 100
5 to 22 parts by weight of an exfoliating admixture and 1 to 22 parts by weight
A lightweight reinforced tile panel characterized by being molded with cement mortar containing 20 parts by weight of reinforcing short fibers and reinforced with continuous metal wire embedded inside. 2. In a tile panel composed of a lattice-shaped or bottomed lattice-shaped backing base material and a large number of tiles arranged and fixed across the missing part or in contact with the bottom of the missing part, the backing base material is made of cement 100
5 to 22 parts by weight of an exfoliating admixture and 1 to 22 parts by weight
It is characterized by being molded with cement mortar containing 20 parts by weight of reinforcing short fibers, reinforced with a continuous metal wire buried inside, and further filling the missing parts of the backing base material with a heat-insulating and sound-absorbing material. A lightweight reinforced tile panel.