JP4323667B2 - Method for manufacturing concrete structure and decorative sheet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a concrete structure and a decorative sheet for transferring an uneven pattern on the surface of a concrete structure such as a building foundation.
[0002]
[Prior art]
Conventionally, as shown in FIG. 8, the foundation 33 serving as the foundation of the building has been made with a smooth surface. Such a foundation 33 with a smooth surface was apt to change and look bad. For this reason, after placing the concrete foundation 33, the surface of the foundation 33 has been improved by spraying a mortar on the surface to give a concavo-convex pattern or tiling.
[0003]
However, the foundation with the mortar coating or tiling applied as described above has a problem that the number of construction steps increases, the cost increases, and the construction period becomes longer.
[0004]
In view of this, as a method for forming a concavo-convex pattern on the surface of the foundation 33, for example, a concrete formwork pattern plate disclosed in Japanese Patent Application Laid-Open No. 8-218625 has been devised and implemented. As shown in FIG. 9, the concrete formwork pattern plate 30 is made of a thin plate having an uneven shape on the front and back surfaces. Then, the molds 31 and 32 facing each other with a predetermined interval are arranged side by side on the inner surface of the mold 31 located on the outer surface of the concrete structure, and concrete is poured into the space between the two molds 31 and 32. By providing, the concavo-convex pattern of the pattern board 30 is transferred onto the surface of the foundation 33.
[0005]
[Problems to be solved by the invention]
However, in the pattern plate 30, a plurality of pattern plates 30 must be arranged and lined on the inner surface of the mold 31, so that it is inevitable that a seam is generated between the adjacent pattern plates 30. Thus, if there is a seam between the pattern plate 30 with each other, by the expansion and contraction caused in the process of curing the curing temperature change and concrete materials, the seam becomes wider, spread seam surface of the concrete structure of the underlying etc. Will be transcribed. When such a seam is formed on the surface, there is a problem in that it is not desirable from an aesthetic point of view, and there is a problem that an extremely complicated post-processing work for repairing the seam part by a hanging or plastering work or the like occurs.
[0006]
Moreover, since the said pattern board 30 is a thin plate which has uneven | corrugated shape in front and back, there exists a problem that an uneven | corrugated shape is easy to be crushed and it is not suitable for repeated use. Moreover, the uneven pattern could not be transferred cleanly without applying a release agent, and it took time for such operations. Further, it is necessary to fix the pattern plate 30 on the inner surface of the mold 31 with screws, etc., and the amount of work required to attach and remove the pattern plate 30 is extremely large, which increases the construction cost.
[0007]
The present invention has been made in view of such circumstances, and purpose of providing a manufacturing method and the decorative sheet of the concrete structure in which seams formed concrete structure barely noticeable.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the method for producing a concrete structure according to the present invention transfers concrete with a decorative sheet placed on the inner surface of a concrete formwork, with the decorative sheet placed along the inner surface of the concrete formwork. A method for manufacturing a concrete structure,
The decorative sheet is placed along the inner surface of the formwork so that there is no seam from at least one corner of the concrete structure to the next corner, and the decorative sheet is inserted through a slit formed in a part corresponding to the corner to form the formwork at that part. Make a surplus of the decorative sheet so that it becomes a loop shape outside, and take in and out of the loop-shaped surplus decorative sheet so as to absorb expansion and contraction, and attach a decorative sheet to one side edge of the decorative sheet. A hooking piece is provided that can hook the decorative sheet on the upper end of the concrete formwork along the concrete formwork, and the hooking piece is extended to one side edge of the decorative sheet, through a thin-walled hinge. a bent Te bent portion, the slit in the portion sandwiched by the two positions formed on the bent portions that make excess is passed through to the slit And effect.
[0009]
Further,粧sheet of the present invention is to Da設concrete in a state in which along the inner surface of the concrete formwork, a decorative sheet for transferring an uneven pattern on the surface of the concrete structure, at least the concrete structure From the corner to the next corner is seamlessly lined up, and the surplus of the decorative sheet is made at the corner.
A hooking piece is provided on one side edge of the decorative sheet so that the decorative sheet can be hooked on the upper end of the concrete formwork while the decorative sheet is placed along the concrete formwork. It is a bent portion that is extended at the edge and bent through a thin hinge, and the portion sandwiched between the two cuts formed in the bent portion is inserted into the slit to create an excess. To do.
[0010]
That is, the method for producing a concrete structure of the present invention is a decorative sheet in which concrete is placed in a state along the inner surface of a concrete formwork, and a concavo-convex pattern is transferred to the surface of the concrete structure, at least the concrete From the corner of the structure to the next corner, it is possible to follow along seamlessly. For this reason, since the joint between the decorative sheets comes to the corner portion of the concrete structure, even if the joint is transferred, it becomes inconspicuous. Moreover, even if expansion / contraction occurs due to a temperature change, the expansion / contraction can be absorbed by the corner portion. Therefore, it is aesthetically pleasing and no complicated post-processing is required. Further, since the loop-shaped surplus of the decorative sheet can be formed at the corner portion, even if expansion or contraction occurs due to a temperature change, the loop-shaped surplus decorative sheet is pulled to remove the decorative sheet from the inner surface of the formwork. It is easy to absorb the expansion and contraction, for example, it is shifted on the top, and workability is improved. The addition, since the absorbing expansion by out the decorative sheet of the loop-shaped surplus in the mold frame, even stretch temperature change occurs, by out the looped excess of the corner Absorbs expansion and contraction and does not deteriorate the appearance.
[0011]
Method for producing a concrete structure of the present invention, hooking piece the decorative sheet a decorative sheet on one side edge of the decorative sheet in a state in which along a concrete form can be hooked to the upper end of the concrete form is provided The hooking piece is a bent portion that extends on one side edge of the decorative sheet and is bent through a thin hinge, and a portion sandwiched between two cuts formed in the bent portion is inserted into the slit. to make excess Te, decorative sheet slipping is prevented, upon the occurrence of finish defects caused by misalignment of the decorative sheet can be prevented, it is possible to form a hook piece decorative sheet integrally molded, cost Is extremely advantageous.
[0012]
According to the decorative sheet of the present invention, since the seam between the decorative sheets comes to the corner portion of the concrete structure because it is adapted to be seamlessly fitted from the corner of the concrete structure to the next corner. Even if the seam is transferred, it becomes inconspicuous. Moreover, even if expansion / contraction occurs due to a temperature change, the expansion / contraction can be absorbed by the corner portion. Therefore, it is aesthetically pleasing and no complicated post-processing is required. Furthermore, because the decorative sheet has a surplus at the corner portion, even if expansion or contraction occurs due to temperature change, the surplus decorative sheet is pulled to shift the decorative sheet on the inner surface of the mold, etc. It is easy to absorb the expansion and contraction and workability is improved. In addition, a hooking piece is provided on one side edge of the decorative sheet so that the decorative sheet can be hooked on the upper end of the concrete mold in a state where the decorative sheet is placed along the concrete mold. In the case of a bending part that extends to one side edge and is bent via a thin hinge, and when a portion sandwiched between two cuts formed in the bending part is inserted into the slit, an excess is created. The slippage of the decorative sheet is prevented, the occurrence of defective finish due to the shift of the decorative sheet can be prevented, and the hooking piece can be formed integrally with the decorative sheet, which is extremely advantageous in terms of cost.
[0013]
Oite this onset bright, if the corners of the concrete structure adapted to be brought seamlessly along over the corner of the next, even stretch temperature change occurs, to absorb the expansion and contraction in the corner portion Easy and easy to work.
[0015]
Oite this onset bright, if you have the presence of magnetic material in the vicinity of the surface facing the at least concrete forms, simply placed along the decorative sheet to the surface of the mold, a magnetic material is attracted to the concrete formwork The decorative sheet is fixed. In this way, the conventional troublesome work such as screwing becomes unnecessary, the attachment and removal can be performed very easily, the position adjustment and the like are easy, and the construction cost is greatly reduced.
[0016]
In the decorative sheet of the present invention, when a surface facing the concrete form is flat surface, in a state in which along the inner surface of the concrete formwork the decorative sheet easily shifted, stretching occurs in a temperature change Even so, the decorative sheet is easily displaced to easily absorb the expansion and contraction, thereby improving workability. In addition, the concavo-convex pattern is hardly crushed and can be used repeatedly.
[0017]
In the decorative sheet of the present invention, when it is mainly composed of a soft resin or rubber, it has a good fit at the corner, improves workability, and withstands friction with the concrete material to some extent, and can be used repeatedly. It becomes possible.
[0018]
In the decorative sheet of the present invention, when the main component is an ethylene-vinyl acetate copolymer, the releasability from concrete is good, and the application of a release agent is almost unnecessary, so that the construction process Can be simplified and construction costs can be reduced.
[0019]
In the decorative sheet of the present invention, when the thickness of the thin portion is 0.1 mm or more and 1 mm or less and the unevenness difference is set to 1 mm or more and 10 mm or less, the workability is deteriorated and the shape of the concrete structure is adversely affected. after that can prevent, it can form a sufficient uneven pattern in concrete structural products.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail.
[0021]
FIG. 1 shows an embodiment of the decorative sheet of the present invention. The decorative sheet 1 has a concavo-convex pattern 2 formed on the surface and a back surface formed on the flat surface 3, and has a long sheet shape as a whole. Protruding edges 4 are provided on both side edges of the surface, and flat portions 5 with a predetermined interval are provided between the protruding edges 4 and the concavo-convex pattern 2.
[0022]
As the material constituting the decorative sheet 1, a flexible material that can be bent and has a strength that can withstand friction with a concrete material is preferably used. For example, a soft resin or rubber is preferably used.
[0023]
Examples of the soft resin material include various materials such as ethylene-vinyl acetate copolymer (EVA resin), vinyl chloride, polyurethane resin, silicone resin, vinyl chloride / vinyl acetate copolymer resin, and polyethylene resin. Examples of rubber materials include natural rubber, styrene butadiene rubber, acrylonitrile butadiene rubber, chloroprene rubber, butyl rubber, ethylene-propylene rubber, fluorine rubber, high styrene rubber, polyisoprene rubber, polybutadiene rubber, alphine rubber, acrylic rubber, Various types such as chlorosulfonated polyethylene are listed.
[0024]
Among these, the ethylene-vinyl acetate copolymer has particularly good releasability from concrete, and it is not necessary to apply a release agent, so that the construction process can be simplified and the construction cost can be reduced.
[0025]
As for the said decorative sheet 1, it is desirable that the thickness of the thinnest part, such as the flat part 5 of both sides, and the recessed part of the uneven | corrugated pattern 2, is 0.1 mm or more and 1 mm or less. If the thickness of the thin part is less than 0.1 mm, the strength is insufficient and it is not suitable for repeated use. If it exceeds 1 mm, the flexibility at the corner is inferior, workability is deteriorated, and the shape of the concrete structure is adversely affected. This is because there is a risk of effect.
[0026]
Moreover, as for the said decorative sheet 1, it is desirable to set the largest uneven | corrugated difference of the uneven | corrugated pattern 2 to 1 mm or more and 10 mm or less. If the unevenness difference is less than 1 mm, a sufficient unevenness pattern is not formed in the concrete structure, and if it exceeds 10 mm, the corner is inferior in flexibility and workability, and the shape of the concrete structure is adversely affected. Because there is a fear.
[0027]
When the decorative sheet 1 forms a concrete structure such as a foundation, the uneven pattern 2 is transferred onto the surface of the concrete structure. That is, as shown in FIG. 2, among the molds 6 and 7 provided at a predetermined interval, the decorative sheet so that the concave and convex pattern 2 is on the inner surface of the mold 6 positioned outside the structure. In this state, a concrete material is placed in the space between both molds 6 and 7. After the concrete is cured and cured, the molds 6 and 7 and the decorative sheet 1 are removed, and the uneven pattern 2 is transferred to the surface of the obtained concrete structure.
[0028]
The above-mentioned mold frames 6 and 7 are connected to the corner joint 8 and the corner joint 9 to form corners of the corner and corner of the concrete structure. Then, a slit 10 is formed in the protruding corner joint 8A that is located outside the structure and is connected to the mold 6 on which the decorative sheet 1 is placed, so that the decorative sheet 1 is inserted into the slit 10. It has become. The decorative sheet 1 inserted through the slit 10 forms a loop-like surplus 12 on the outside. In the figure, reference numeral 11 denotes a cover of the slit 10.
[0029]
Moreover, although the said decorative sheet 1 is not shown in figure, the sheet | seat of 1 sheet is used continuously over the perimeter of a concrete structure.
[0030]
As described above, in the decorative sheet 1, the surplus 12 of the decorative sheet 1 is formed in the protruding corner portion of the concrete structure, and the decorative sheet 1 is seamlessly stretched from the protruding corner to the next protruding corner. Even if expansion or contraction occurs in the process of temperature change or curing and curing of the concrete material, the expansion and contraction can be absorbed by taking in and out the excess 12 at the protruding corner, and the appearance does not deteriorate. Moreover, since the back surface is the flat surface 3, it is easy to shift the inner surface of the mold 6, and it is easy to perform the work of taking in and out the surplus 12 to absorb expansion and contraction.
[0031]
FIG. 3 shows a second example of the usage state of the decorative sheet of the present invention. In this example, the surplus 12 of the decorative sheet 1 inserted through the slit of the protruding corner joint 8A does not form a loop shape, but is cut at the surplus 12 portion. Other than that is the same as the example shown in FIG. 2, and the same code | symbol is attached | subjected to the same part. Also in this example, the same operation effect is produced.
[0032]
FIG. 4 shows a third example of the usage state of the decorative sheet of the present invention. In this example, the slit 10 is not formed in the corner joint 8 and the surplus 12 of the decorative sheet 1 is not formed outside. In the figure, reference numeral 13 denotes a reinforcing bar for bringing the decorative sheet 1 along the mold 6. Other than that is the same as the example shown in FIG. 2, and the same code | symbol is attached | subjected to the same part. Also in this example, the same operation effect is produced.
[0033]
In the above embodiment, when the decorative sheet 1 is placed along the mold 6, it can be attached to the inner surface of the mold 6 with a double-sided tape or an adhesive.
[0034]
Moreover, in the said embodiment, although the decorative sheet 1 was formed with soft resin or rubber | gum, as a material which comprises the decorative sheet 1, for example, magnet powder, such as a ferrite type and an alnico type, is used for various rubber | gum and soft resin. What was disperse | distributed and solidified can be used. By doing in this way, magnet powder is attracted to form 6 and decorative sheet 1 is fixed only by making decorative sheet 1 along the surface of steel form 6. Therefore, the conventional troublesome work such as screwing becomes unnecessary, the attachment and removal can be performed very easily, the position adjustment and the like are easy, and the construction cost is greatly reduced. In this case, the decorative sheet 1 may not be long, and a seam may be present in a flat portion between the corners of the mold 6.
[0035]
In this example, the magnetic material is not limited to the one in which the decorative sheet 1 is formed of a material in which magnet powder is dispersed, and the magnetic material may be present at least in the vicinity of the surface facing the mold 6 of the decorative sheet 1. For example, a magnet plate can be attached to the back surface, or a magnet plate can be embedded in the vicinity of the back surface. Even in these cases, the same effects can be obtained.
[0036]
FIG. 5 shows a decorative sheet 1 according to the second embodiment of the present invention. The decorative sheet 1 has a concavo-convex pattern 2 formed on the surface and a back surface formed on the flat surface 3, and has a long sheet shape as a whole. Flat portions 5 are provided on both side edges of the surface, and bent portions 16 are extended on one side edge of the decorative sheet 1. A V-groove 14 is formed between the bent portion 16 and the flat portion 5, and a bottom portion of the V-groove 14 is formed in a thin hinge 15 that allows the bent portion 16 to be bent.
[0037]
As shown in FIG. 6, the decorative sheet 1 is formed such that the bent portion 16 is bent at the thin hinge 15, the bent portion 16 is hooked on the upper end of the mold 6, and the decorative sheet 1 is placed along the mold 6. Used. Then, as shown in FIG. 7, for example, as shown in FIG. 7, the surplus portion 12 inserted through the slit 10 is cut into two notches by folding two portions vertically into the bent portion 16 and folding back the portion sandwiched between the notches. And the portion of the notch 17 is inserted into the slit 10.
[0038]
In this decorative sheet 1, the decorative sheet 1 is prevented from slipping out, and the occurrence of poor finish due to the decorative sheet 1 being displaced can be prevented. Moreover, in the said decorative sheet 1, since the bending part 16 is integrally formed with the decorative sheet 1, it can be formed by integral molding and becomes very advantageous in cost.
[0039]
In the embodiment described above, the bent portions 16 are provided continuously in the longitudinal direction of the decorative sheet 1, but the bent portions 16 having a predetermined width may be provided intermittently at regular intervals. Further, it is possible to make a hook piece that can be hooked on the mold 6 instead of the bent portion 16 and attach it to the decorative sheet 1 by adhesion or the like.
[0040]
【The invention's effect】
As described above, in the method for producing a concrete structure of the present invention, the joint between the decorative sheets comes to the corner portion of the concrete structure, so that even if the joint is transferred, it is not noticeable. Moreover, even if expansion / contraction occurs due to a temperature change, the expansion / contraction can be absorbed by the corner portion. Therefore, it is aesthetically pleasing and no complicated post-processing is required. Further, since the loop-shaped surplus of the decorative sheet can be formed at the corner portion, even if expansion or contraction occurs due to a temperature change, the loop-shaped surplus decorative sheet is pulled to remove the decorative sheet from the inner surface of the formwork. It is easy to absorb the expansion and contraction, for example, it is shifted on the top, and workability is improved. The addition, since the absorbing expansion by out the decorative sheet of the loop-shaped surplus in the mold frame, even stretch temperature change occurs, by out the looped excess of the corner Absorbs expansion and contraction and does not deteriorate the appearance.
In addition, a hooking piece is provided on one side edge of the decorative sheet so that the decorative sheet can be hooked on the upper end of the concrete mold with the decorative sheet placed along the concrete mold. A decorative sheet that is a bent portion that is extended at one side edge and is bent through a thin hinge, and a portion sandwiched between two cuts formed in the bent portion is inserted into the slit to create an excess portion. This prevents the slipping off of the decorative sheet, prevents the occurrence of defective finishing due to the displacement of the decorative sheet, and allows the hook piece to be formed integrally with the decorative sheet, which is extremely advantageous in terms of cost.
[0041]
Further, according to the粧sheet of the present invention, since the consist corner of at least a concrete structure to be brought seamlessly along over the corner of the next seam of the decorative sheet to each other, the corner portions of the concrete structure Therefore, even if the seam is transferred, it is not noticeable. Moreover, even if expansion / contraction occurs due to a temperature change, the expansion / contraction can be absorbed by the corner portion. Therefore, it is aesthetically pleasing and no complicated post-processing is required. Furthermore, because the decorative sheet has a surplus at the corner portion, even if expansion or contraction occurs due to temperature change, the surplus decorative sheet is pulled to shift the decorative sheet on the inner surface of the mold, etc. It is easy to absorb the expansion and contraction and workability is improved. In addition, a hooking piece is provided on one side edge of the decorative sheet so that the decorative sheet can be hooked on the upper end of the concrete mold in a state where the decorative sheet is placed along the concrete mold. In the case of a bending part that extends to one side edge and is bent via a thin hinge, and when a portion sandwiched between two cuts formed in the bending part is inserted into the slit, an excess is created. The slippage of the decorative sheet is prevented, the occurrence of defective finish due to the shift of the decorative sheet can be prevented, and the hooking piece can be formed integrally with the decorative sheet, which is extremely advantageous in terms of cost.
[Brief description of the drawings]
1A and 1B are diagrams showing a decorative sheet according to an embodiment of the present invention, in which FIG. 1A is a cross-sectional view, and FIG.
FIG. 2 is a plan view showing an example of a usage state of the decorative sheet.
FIG. 3 is a plan view showing a second example of a usage state of the decorative sheet.
FIG. 4 is a plan view showing a third example of a usage state of the decorative sheet.
5A and 5B are diagrams showing a decorative sheet according to a second embodiment of the present invention, in which FIG. 5A is a cross-sectional view, and FIG. 5B is a surface view.
FIG. 6 is a cross-sectional view showing a usage state of the decorative sheet.
7A and 7B are diagrams showing a usage state of the decorative sheet, where FIG. 7A is a cross-sectional view, and FIG. 7B is a surface view.
FIG. 8 is a perspective view showing a foundation.
9A and 9B are diagrams showing a conventional pattern board, in which FIG. 9A is an exploded perspective view showing a use state, FIG. 9B is a perspective view, and FIG. 9C is a cross-sectional view.
[Explanation of symbols]
1 decorative sheet 6 formwork

Claims (2)

A concrete structure manufacturing method in which concrete is placed with a decorative sheet on the inner surface of a concrete formwork, and a concavo-convex pattern is transferred to the surface of the concrete structure,
The decorative sheet is placed along the inner surface of the formwork so that there is no seam from at least one corner of the concrete structure to the next corner, and the decorative sheet is inserted through a slit formed in a part corresponding to the corner to form the formwork in that part. Make a surplus of the decorative sheet so that it becomes a loop shape outside, and take in and out of the loop-shaped surplus decorative sheet so as to absorb expansion and contraction, and attach a decorative sheet to one side edge of the decorative sheet. A hooking piece is provided that can hook the decorative sheet on the upper end of the concrete formwork along the concrete formwork, and the hooking piece is extended to one side edge of the decorative sheet through a thin hinge. a bent Te bent portion, the slit in the portion sandwiched by the two positions formed on the bent portions that make excess is passed through to the slit Production method of the concrete structure to symptoms. A decorative sheet in which concrete is placed along the inner surface of a concrete formwork, and a concavo-convex pattern is transferred onto the surface of the concrete structure. The decorative sheet is seamlessly lined from one corner of the concrete structure to the next. And the corner of the corner can be made of surplus decorative sheets,
A hooking piece is provided on one side edge of the decorative sheet so that the decorative sheet can be hooked on the upper end of the concrete mold with the decorative sheet placed along the concrete mold. It is a bent portion that is extended at the edge and bent through a thin hinge, and a portion sandwiched between two cuts formed in the bent portion is inserted into a slit to create an excess portion. Makeup sheet.

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