JP5558084B2 - Manufacturing method of building exterior materials - Google Patents

Description

  The present invention relates to a method for manufacturing a building exterior material that reflects light and changes the color tone of the surface.

  Conventionally, as an outer wall (non-bearing wall) of a building such as a medium- or high-rise building, it has many advantages such as a high degree of freedom in design and efficiency in construction. Material) is often used. In addition, since this curtain wall is excellent in workability and workability and can be reduced in weight, an aluminum curtain wall (aluminum curtain wall) is widely used. Application examples of curtain walls formed by painting the surface of (precast concrete panels, panel bodies) are increasing.

  In addition, the paint applied to the surface of the PC board has good color compatibility with transparent glass such as window glass, and can express a light texture, so fine powders such as metals and ceramics are added to the pigment to reflect light. A glittering paint that appears to shine is used. For example, a metallic paint that expresses the unique luster of a metal by painting a glittering paint in which aluminum fine powder is mixed with a pigment, and a glittering paint in which mica is coated with pearl mica fine powder coated with titanium oxide. Many pearl paints are used to express the gloss of pearls.

  On the other hand, there is also one in which a raster tile having a metallic film shining like an iridescent pearl on its surface is formed on the surface of a PC board using a glaze, and it was frequently used especially in the 1980-1990s.

  Furthermore, there are building exterior materials in which unevenness is continuously provided on the surface to form PC boards and tiles, and a geometric three-dimensional pattern is formed on the surface. In this building exterior material, light is reflected at a reflection angle corresponding to the shape of the unevenness, and the wavelength of a specific color is emphasized by the interference action of light. Thereby, it becomes possible to change the color tone of the surface of a building exterior material according to the viewing angle (for example, refer patent document 1).

JP 2007-309001 A

  However, building exterior materials with raster tiles on the surface of PC boards have high reflectivity, and the color tone changes depending on the amount of light hitting them. If the finished surface accuracy during construction decreases, the color tone of the tile surface becomes stable. However, there was a problem that it looked like a blue fish scale. In other words, there is a problem that it is difficult to construct as intended by the architect.

  In addition, since the glaze of the raster tile is softer than a general glaze, the surface is easily scratched. In particular, a tile formed with unevenness on the surface may have a chipped portion (corner portion). Furthermore, there is also a problem that the water and the glaze of the PC board containing calcium (cement content) react with the glaze and easily cause an iris phenomenon.

  For this reason, building exterior materials that use raster tiles require the delicate handling of construction accuracy and cleaning methods because of the use of raster tiles. Occur frequently and are rarely used now.

  In view of the above circumstances, an object of the present invention is to provide a method for manufacturing a building exterior material for preventing damage to a tile surface and occurrence of an iris phenomenon.

  In order to achieve the above object, the present invention provides the following means.

The method for manufacturing a building exterior material according to the present invention is a method for manufacturing a building exterior material formed by integrally providing a tile formed by glazing at least on the surface of a surface of a concrete panel body, The tile is formed with a concavo-convex portion formed by continuously arranging a plurality of protrusions extending in one direction along the surface in another direction orthogonal to the one direction, and covers the concavo-convex portion of the tile. An elastic body attaching step for attaching the elastic body so that a plurality of tiles are arranged side by side so that the elastic body faces the inner surface side of the mold, and the panel main body in the mold A concrete placing process for placing concrete, and after removing the mold, the surface side on which the tile is provided is directed upward, and one end in the one direction is disposed downward and the other end is disposed upward. Building exterior materials And setting, characterized in that the water flowed down and a cleaning step of rinsing the tile to the uneven portion in this state.

  In this invention, by attaching an elastic body so as to cover the uneven part of the tile, when transporting and installing tiles and building exterior materials in the tile placement process, concrete placing process, and cleaning process, in the concrete placing process When the weight of concrete is loaded, it is possible to prevent the ridges (corners) of the uneven portions of the tile from being chipped.

  In addition, after removing the mold, the surface of the tiles of the building exterior material installed obliquely in the cleaning process is flushed with water to wash the surface, so that the cement paste attached to the tiles can be removed. It is possible to prevent the occurrence of an iris phenomenon.

  In the method for manufacturing a building exterior material according to the present invention, it is desirable that the building exterior material is obliquely installed so as to have a gradient of 1/50 to 1/15 in the cleaning step.

  In the present invention, by placing the building exterior material obliquely so as to have a gradient of 1/50 to 1/15, it is possible to remove the cement paste and the like by suitably flowing water to the uneven portions of the tile.

  According to the method for manufacturing a building exterior material of the present invention, by attaching an elastic body so as to cover the uneven portion of the tile, it is possible to prevent the tip portion of the uneven portion (projection portion) of the tile from being chipped. In addition, it is possible to remove cement paste adhering to the tile in the cleaning process, and to prevent the occurrence of iris phenomenon.

  As a result, even when using raster tiles (tiles with raster glazing), damage to tiles and the occurrence of iris phenomenon can be prevented. It becomes possible to promote. That is, it becomes possible to solve the problems (defects) peculiar to building exterior materials using conventional raster tiles.

It is a perspective view which shows the building exterior material which concerns on one Embodiment of this invention. It is a figure which shows the tile of the component of the building exterior material which concerns on one Embodiment of this invention. It is a figure which shows the tile unit (elastic body attachment process) which carried out the sheet pack of the tile of the building exterior material which concerns on one Embodiment of this invention. It is a figure which shows the state which marked the mark on the tile of the building exterior material which concerns on one Embodiment of this invention. It is a figure which shows an example of the layout of the building exterior material which concerns on one Embodiment of this invention. It is a figure which shows the state (a tile arrangement | positioning process, a concrete placement process) which installed the tile unit which concerns on one Embodiment of this invention in a formwork, and poured concrete. It is a figure which shows the state (washing | cleaning process) which is washing the building exterior material which concerns on one Embodiment of this invention with water.

  Hereinafter, with reference to FIGS. 1-7, the manufacturing method of the building exterior material which concerns on one Embodiment of this invention is demonstrated. The present embodiment relates to a method for manufacturing a building exterior material in which a tile (a tile formed by providing glitter on the surface) with a raster glazing is integrally provided on the surface of a PC board.

  First, as shown in FIG. 1, the building exterior material A of the present embodiment is formed by integrally providing a plurality of tiles 2 on the surface 1a of a flat PC board 1 (precast concrete panel, concrete panel body). Has been. As shown in FIGS. 1 and 2, the tile 2 according to the present embodiment includes a plurality of protrusions 2b extending in one direction T1 along the surface 2a and continuously arranged in the other direction T2 orthogonal to the one direction T1. The concavo-convex portion 3 is formed. Further, in the tile 2 of the present embodiment, a plurality of concave grooves 2d extending in the one direction T1 are formed on the back surface 2c at predetermined intervals in the other direction T2. Thereby, on the back surface 2c of the tile 2, a convex portion 2e having a substantially square cross section extending in the one direction T1 is formed between adjacent grooves 2d. Further, the tile 2 is formed by applying a raster ridge 4 to at least the uneven portion 3 of the surface 2a, and is formed by imparting glitter to the uneven portion 3 of the surface 2a. That is, the tile 2 is a raster tile (color shift tile).

  Moreover, in this embodiment, the some protrusion part 2b which forms the uneven | corrugated | grooved part 3 of the tile 2 is formed in cross-sectional triangle shape (mountain shape). Furthermore, the uneven pitch, that is, the bottom dimension of the protrusion 2b having a triangular cross section is set to about 40 to 80 mm, and the uneven depth of the uneven part 3, that is, the height of the protrusion 2b is about 1/5 of the uneven pitch ( 8 to 16 mm).

  And as shown in FIG. 1, the several tile 2 is provided in the surface 1a of the PC board 1 in the state which has distribute | arranged said one direction T1 to the up-down direction. As a result, the building exterior material A of the present embodiment has a geometric three-dimensional pattern (surface texture) formed on the surface thereof, and the angle at which the surface is viewed by the raster basket 4 applied to the uneven portion 3 of the tile 2. In response, it is formed to shine in a iridescent color like a pearl.

  Next, the manufacturing method of the building exterior material A having the above configuration will be described. Such a building exterior material A is usually manufactured in a PC factory by carrying a tile 2 formed by applying a raster basket 4 to a PC factory. And in the manufacturing method of building exterior material A of this embodiment, in order to improve the efficiency of laying and arranging tiles 2 first, for example, two tiles 2 are arranged side by side and integrated as a set of tile units. A sheet pack is prepared as described above. At this time, as shown in FIG. 3, a hard rubber protective cover (elastic body) 5 is attached to the tile 2 (tile unit) so as to cover the uneven portion 3 (surface 2a) to produce a sheet pack. (Elastic body attachment process). The protective cover 5 is preferably 2 to 10 mm thick.

Also, as shown in FIG. 4, a mark M (for example, a left-pointing triangle mark or a right-pointing triangle mark) indicating the left and right is previously attached to the back surface 2c of the tile 2, and the combination pattern of the tiles 2 is different while looking at the mark M. A plurality of types of sheet packs are produced. Further, for example, at the time of making the sheet pack, the symbols (A to D) are given by writing on the back surface 2c of the tile 2, for example, according to the layout shown in FIG. 5, as shown in FIG. A tile unit is arranged and arranged in a mold 6 formed according to the size of the exterior material A. That is, a plurality of tiles 2 are arranged at predetermined positions in the mold 6 (tile arranging process). Thus, by assigning the symbols (A to D) to the tile units and arranging the tile units according to the layout drawing, the plurality of tiles 2 can be easily arranged at predetermined positions.
It should be noted that a serial number may be assigned to each tile unit to perform quantity management, or a color may be added to each tile unit to allow visual check.

  At this time, the tile units are laid out with the protective cover 5 facing the inner surface 6a side of the mold 6. And when each tile unit (tile 2) is transported and arranged at a predetermined position in the mold 6 in this way, the uneven portion 3 of the tile 2 is covered with the protective cover 5, so that a general glaze Even in the tile 2 using the softer raster basket 4, no chipping occurs at the apex (corner) of the protrusion 2 b of the tile 2.

  Next, as shown in FIG. 6, concrete C to be a PC plate (panel body) 1 is placed in the mold 6 (concrete placing step). At this time, the protruding portion 2b (uneven portion 3) of the tile 2 is pressed against the inner surface 6a of the mold 6 by its own weight or the like, and the protruding portion 2b of the tile 2 and the inner surface of the mold 6 are used. Since the protective cover 5 is interposed between the protrusion 6b and the protrusion 6b, the tip of the protrusion 2b is not chipped. In addition, by providing joint material 7 such as foamed polyethylene between the adjacent tiles 2, the concrete C is prevented from flowing into the surface 2 a side (protective cover 5 side) of the tile 2.

  And after the cast concrete C hardens | cures, the building exterior material A which provided the tile 2 integrally on the surface 1a of the PC board 1 is obtained by demolding the formwork 6. FIG. Further, as shown in FIG. 7, in this embodiment, immediately after the mold 6 is removed from the mold, the surface side on which the tile 2 is provided is directed upward, and one end in the one direction T1 is directed downward and the other end is directed upward. The building exterior material A is obliquely arranged. Then, the protective cover 5 is removed, and the tiles 2 are washed with water by allowing the water W to flow down the uneven portions 3 of the tiles 2 (cleaning step). In this way, the building exterior material A is obliquely disposed and the water W is allowed to flow down the uneven portion 3 of the tile 2, whereby cement paste attached to the surface 2 a of the tile 2 is removed. Further, when it is confirmed that cement paste has been removed, the water W remaining on the surface 2a is removed with a blower or the like. Thereby, the building exterior material A which does not produce the iris phenomenon which was a big subject when using a raster tile conventionally is manufactured. In this cleaning step, it is preferable to obliquely install the building exterior material A so as to have a gradient (= a / b) of 1/50 to 1/15. By doing in this way, the water W flows down suitably to the uneven | corrugated | grooved part 3 of the tile 2, and cement paste etc. are removed reliably.

  Therefore, in the manufacturing method of the building exterior material A according to the present embodiment, by attaching the protective cover 5 (elastic body) so as to cover the uneven portion 3 of the tile 2, the tile disposing step, the concrete placing step, and the cleaning When transporting and installing tile 2 and building exterior material A in the process, when the dead weight of concrete C is loaded in the concrete placing process, the ridges (corners) of the uneven portions 3 of the tile 2 are prevented from being lost. it can.

  Further, after removing the mold 6, the surface 2 a is washed with water by flowing water W down the uneven portions 3 of the tile 2 of the building exterior material A obliquely installed in the cleaning process, so that the cement paste attached to the tile 2, etc. It is possible to prevent the occurrence of the iris phenomenon. Further, at this time, the building exterior material A is obliquely installed so as to have a gradient of 1/50 to 1/15, whereby water W is suitably flown down to the uneven portion 3 of the tile 2 to remove cement paste and the like. Can do.

  Furthermore, in addition to the above effects, the building exterior material A manufactured by the manufacturing method of the present embodiment has a protrusion 2b extending in the vertical direction (one direction T1) on the surface, that is, a vertical slit is formed. As a result, there is no glare, and the vertical slits become water, making it difficult to get dirt, and even if dirt is attached, it is not noticeable.

  As a result, even if a raster tile (tile 2 coated with a raster tile 4) is used, damage to the tile 2 and the occurrence of an iris phenomenon can be prevented. This makes it possible to use this type of building exterior material A and to promote the spread. That is, the conventional problem can be solved.

  As mentioned above, although one Embodiment of the manufacturing method of the building exterior material which concerns on this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.

1 PC board (panel body made of concrete)
DESCRIPTION OF SYMBOLS 1a Surface 2 Tile 2a Surface 2b Protrusion part 2c Back surface 2d Groove 2e Convex part 3 Concave part 4 Raster ridge 5 Protective cover (elastic body)
6 Formwork 6a Inner surface 7 Joint material A Building exterior material M Mark T1 One direction T2 Other direction

Claims (2)

A method of manufacturing a building exterior material formed by forming a tile formed by glazing at least a surface on a surface integrally with a surface of a concrete panel body,
The tile is formed with a concavo-convex portion formed by continuously arranging a plurality of protrusions extending in one direction along the surface in another direction orthogonal to the one direction,
An elastic body attaching step of attaching an elastic body so as to cover the uneven portion of the tile;
A tile disposing step of disposing a plurality of tiles side by side so that the elastic body faces the inner surface side of the mold;
A concrete placing step for placing concrete to be the panel body in the mold,
After demolding the formwork, the surface side on which the tile is provided is directed upward, and one end in the one direction is disposed downward and the other end is disposed upward, and the building exterior material is obliquely installed. The manufacturing method of the building exterior material characterized by including the washing process of making the unevenness part flow down and washing the tile with water. In the manufacturing method of the building exterior material according to claim 1,
In the cleaning step, the building exterior material is obliquely installed so as to have a gradient of 1/50 to 1/15.

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