JPS61254302A - Manufacture of concrete board into which tile is buried - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method for producing concrete boards with embedded tiles for decoration or for guiding visually impaired people.

[Prior Art] In recent years, concrete plates with tiles embedded in the walls and floors of buildings, or the pavement of roads, are often used for decoration or as guides for visually impaired people.

Usually, this tile-embedded concrete board is made by manufacturing a concrete board in advance and fixing the tiles to it with adhesive, or
Or it was fixed with mortar.

[Problems to be Solved by the Invention] However, when tiles are fixed to a concrete plate with adhesive or mortar, there are problems in that the tiles are easy to peel off and the number of manufacturing steps is increased.

Also, in order to solve these problems, attempts have been made to fix tiles to the bottom plate of the concrete plate and embed the tiles at the same time as the concrete plate is manufactured, but due to the fluidity of concrete. Therefore, there was a problem that even the tile surface was covered with concrete.

[Means for Solving the Problems] The present invention employs the following technical means as a configuration of the invention in order to solve the above problems.

That is, the method for producing a tile-embedded concrete board of the present invention includes fixing a tile to a highly elastic holder having fixing holes of the same shape as the tile, and using the holder as the bottom plate of a concrete board formwork. concrete without excess water is poured into the formwork, and is cured after applying vibration and pressure to the formwork.

The tiles can be plate-shaped tiles with a three-dimensional or two-dimensional pattern on the surface. The material is not particularly limited as long as it is commonly used. For example, tiles made of ceramic, resin, glass, metal, etc. can be used.

In particular, tiles used as guides for visually impaired people are preferably made of resin from the viewpoint of moldability and feel.

Furthermore, if you use resin tiles, you can also get a soundproofing effect.

The holder is required to have high elasticity, such as rubber. This is to prevent the concrete from wrapping around the surface of the tile fixed in the fixing hole of the holder that is in contact with the holder when applying vibration and pressure to the formwork after pouring concrete, which will be described later. This is to facilitate demolding.

Highly elastic materials used for the holder include easy availability,
Rubbers such as natural rubber and synthetic rubber are preferred from the viewpoint of ease of processing and strength. In particular, if you insert a net made of synthetic fibers inside, the strength will be further increased.

The tile is fitted into the fixing hole of the holder with the side that will be exposed when it becomes a concrete plate facing the bottom of the fixing hole of the holder. In this case, it is preferable that the back surface of the tile is located above the upper edge of the fixing hole. At this upper part, the tile is firmly fixed with a concrete plate.

Among the commonly used formwork for concrete plates, it is sufficient to use one in which only the bottom plate has the above-mentioned holder.

Concrete that does not have excess water is made by mixing cement such as Portland cement, fly ash cement, or silica cement, aggregate such as river sand, and additives such as admixtures as necessary to improve fluidity. It can be obtained by kneading it while adding as much water as you need. When concrete has fluidity, cement particles, aggregates, etc. are suspended in water, but most of the water that exists between cement particles and aggregates is in the cement. This is surplus water that does not contribute to the hydration reaction. Therefore, when preparing concrete, by adding water until the concrete is on the verge of becoming fluid, more specifically, by making the concrete hard enough that it does not crumble even when squeezed by hand, it is possible to obtain concrete that does not have excess water. Can be done.

The ratio of these to water varies considerably depending on the type of cement, aggregate, and admixture, but usually cement is 10 to 11.
part, 39 to 40 parts of aggregate, a small amount of admixture, and 3 to 4 parts of water.

This concrete, which does not have excess water, is poured into the above-mentioned formwork and then molded by applying vibration and pressure to the formwork. Since this concrete has no fluidity, vibration and pressure are required to form it.

Because concrete has no fluidity, molds made from concrete without excess water can be easily removed from the mold by vibration, pressurization, and erosion. Therefore, it is possible to immediately reuse the used formwork.

The tile-embedded concrete board formed in this way is
After curing for several days, the product is fully cured.

[Effect] By using concrete that does not have excess water,
The concrete does not wrap around the surface of the tile in contact with the holder, and the tile is firmly fixed to the concrete plate because the tile is embedded at the same time as the concrete plate is manufactured.

[Example] An example of the present invention will be described using a sectional view in FIG. 1, a perspective view in FIG. 2, a perspective view in FIG. 3, and a perspective view in FIG. 4. It should be noted that each figure has a different scale for each part for purposes of explanation.

In this example, the holder 1 is 300 x 30 Q mm thick and 9
Use a+n+ rubber plates. As shown in Figure 2,
Nine fixing holes 2 each measuring 90×90 mm and having a depth of 4n+m are provided in this holder 1 at approximately equal intervals. 90 in this fixing hole 2
x 90 x 8 ml Ikpoki tile 3 as the third
Fix it as shown. The dashed-dotted line in Figure 3 indicates tile 3.
This is an imaginary line showing the correspondence between the fixing hole 2 and the fixing hole 2.

Next, as shown in FIG. 1, the holder 1 with the tiles 3 fixed in the fixing holes 2 is fixed on the base B of a pressure vibrator by attaching the bottom plate to the formwork 4 of a concrete plate. Concrete 5 without surplus water is poured into the formwork 4 so that the thickness of the product becomes 60111111. This concrete 5 without surplus water contains 10 to 11 parts of Portland cement and 39 parts of sand as aggregate.
~40 parts and approximately 3 to 4 parts of water were kneaded. The amount of water needs to be adjusted to such an extent that the concrete 5 will not lose its shape by occasionally grasping the concrete 5 by hand when mixing it.

After pouring concrete 5 into the formwork 4, fix the pressurizing part P of the pressure vibrator to the formwork 4, apply small vibrations for about 10 seconds, and then apply pressure together with the vibrations for about 5 seconds. and mold it.

Thereafter, the pressurizing part P, formwork 4, and holder 7 are removed to obtain a tile-embedded concrete board C as shown in FIG.

Since this tile-embedded concrete plate C uses concrete 5 without excess water, it will not deform even if it is removed from the mold immediately after pressurized vibration.

In this tile-embedded concrete board C, since the surface of the holder 1 is flat, so-called joint portions between the tiles are flat, and there is no need for special finishing.

The tile-embedded concrete plate C, which was cured for 21 to 28 days after molding, had sufficient strength and the tiles were firmly fixed.

Furthermore, since the tiles are embedded at the same time as the concrete plate is manufactured, the manufacturing process is omitted, and the manufacturing cost is about 1/3 that of the conventional method.

Furthermore, when a tile-embedded concrete board was manufactured in the same manner using guidance board tiles for visually impaired people, the tiles could be firmly fixed as in the example, and furthermore, the manufacturing process could be significantly omitted.

[Effects of the Invention] By using the method for manufacturing a tile-embedded concrete board of the present invention, a tile-embedded concrete board to which tiles are firmly fixed can be manufactured. Moreover, since the manufacturing process is simplified, the economical effect is great.

[Brief explanation of the drawing]

Fig. 1 is a sectional view for explaining one embodiment of the present invention, Fig. 2 is a perspective view of a holder used therein, and Fig. 3 is an illustration of a holder used therein and fixing of tiles to the holder. A perspective view, FIG. 4, is a perspective view of a tile-embedded concrete board manufactured thereby. , 1... Holder 2... Fixing hole 3... Tile 4... Formwork 5... Concrete

Claims (1)

[Claims] 1. A tile is fixed to a highly elastic holder having fixing holes of the same shape as the tile, and the holder is fixed to the formwork as a bottom plate of a concrete plate formwork, and excess water is drained away. A method for manufacturing a tile-embedded concrete board, characterized by pouring uncontained concrete into the formwork, applying vibration and pressure to the formwork, and then hardening. 2. The method for manufacturing a tile-embedded concrete board according to claim 1, wherein the concrete is cured with the formwork removed. 3. The method for manufacturing a tile-embedded concrete board according to claim 1 or 2, wherein the holder is made of rubber. 4. The method for manufacturing a tile-embedded concrete board according to any one of claims 1 to 3, wherein the tile is made of resin.