JPH10325241A - Concrete form for forming decoration pattern, concrete construction method utilizing concrete form for forming decoration pattern, and concrete building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate construction and to relieve a work at a site by a method wherein concrete forms themselves are formed approximately in a H-shape in a plane external part shape and combined together at random. SOLUTION: In concrete forms 1, an uneven surface part 15 to form a decoration pattern is formed on the whole of a surface on the side where concrete is placed, and a huge rock pattern being large as a whole is expressed. Further, a plane outer shell shape is formed approximately in a H-shape, and recessed parts 11 for combination are formed in the central parts of two long sides, positioned corresponding to each other, of the concrete forms 1 formed approximately in an oblong shape in a plane. The recessed part 11 for combination is surrounded with sides 110, 111, and 111, and the length of the side 110 is set to a value two times as large as the length of the side 112. This constitution forms a combination body wherein the concrete forms 1 are vertically and laterally arranged. Even when free arrangement is effected in a vertical and lateral directions, a joint between the forms does not form a monotone straight line and is hardly formed preminently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork which can be used for improvement of roads and railroads, river revetment, sabo dams, residential land development, retaining walls for measures against collapse of steep slopes, and the like. The present invention relates to a concrete form for forming a decorative pattern capable of forming a large monolithic huge rock pattern as a whole such that a huge rock pattern can be sufficiently recognized, a concrete construction method using the concrete formwork, and a concrete structure.

[0002]

2. Description of the Related Art Conventionally, improvement of roads and railroads, retaining walls such as river revetments, and the like are constructed of concrete which is superior in terms of durability, material cost and construction cost. In many cases. However, in the case of concrete work, when the surface is flat, only the ground surface of inorganic and gray concrete is emphasized, and it is hard to say that it is in harmony with the living environment and the natural environment.

Therefore, in recent years, construction methods and the like capable of expressing various patterns, for example, masonry patterns, on the surface of a concrete retaining wall have been developed and put into practical use. The present applicants have also proposed a technique for forming a random pile of natural stones on the surface of a retaining wall by combining a plurality of molds made of synthetic resin foam (JP-A-59-158825 and JP-A-59-158825). −
213820), as a concrete formwork used in this construction, a plurality of recesses are formed on the surface of a synthetic resin foam to form a random stone pattern, and joints are formed between the recesses. A mold with a forming ridge has been proposed (see Japanese Utility Model Application Laid-Open No. 59-132848).

In the concrete formwork, a plurality of the concrete formworks are arranged in abutting manner, concrete is poured, and after the concrete is solidified, the concrete formwork is removed. It forms a pattern. When a pattern is formed by such a concrete formwork, a natural stone pattern formed by forming adjacent joint forming ridges formed between the concave portions for forming a natural stone pattern so as to be in the same position is not suitable. It is necessary to configure so as not to be continuous. In addition, in order to configure these natural stone patterns so as not to be monotonous, it is necessary to express various masonry patterns with one formwork, and there has been a problem that the size of one formwork becomes large. .

Accordingly, the present applicants have proposed a first mold and a second mold.
A concrete formwork consisting of a formwork was formed, and its arrangement was devised to express various patterns as much as possible, and a concrete formwork capable of forming a random stacking pattern with a sense of unity was proposed ( See Japanese Utility Model Publication No. 7-18182). However, even on expressways, railway tracks, and river revetments, when viewed from a location far from the retaining wall, or when passing by a car or the like in front of the retaining wall at high speed, the concrete In the random pile pattern constructed using the formwork, since each natural stone pattern is too small to be recognized as a pattern, there has been a demand to improve this.

The present invention provides a structure such as a concrete retaining wall having a large monolithic giant rock pattern as a whole so that a giant rock pattern of natural stone can be sufficiently recognized even from a distance, and a makeup with good transportability and workability. An object of the present invention is to provide a concrete formwork for forming a pattern, a construction method using the concrete formwork, and a concrete structure.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a decorative pattern forming concrete formwork provided with a concave and convex portion for forming a decorative pattern on a surface on which concrete is cast. Is a decorative pattern-forming concrete formwork characterized in that the outer contour of the plane is substantially H-shaped, and in particular, a decorative pattern-forming concrete formwork characterized in that the entire concrete formwork is made of synthetic resin foam. is there. In addition, the present invention is characterized in that concrete is cast on the surface side of a combination formed by arranging these concrete pattern forming concrete forms vertically and horizontally to form a concrete retaining wall. This is a concrete construction method using a concrete formwork. Further, the present invention is a concrete structure obtained by casting concrete on the surface side of a combined body constituted by arranging these concrete pattern forming concrete forms vertically and horizontally.

The concrete formwork for forming a decorative pattern according to the present invention comprises a plurality of recesses for forming a pattern such as a random pile of natural stones on the surface of the formwork as in a conventional concrete formwork. Unlike the configuration in which the ridges for joint formation are formed between the two, the part of the monolithic giant rock pattern is naturally expressed on the concrete casting side surface without forming such joints for forming joints. In order to form a combined body by arranging the concrete formwork in the up, down, left and right directions since the uneven portions for forming the decorative pattern are formed, a worker at the site arranges each concrete formwork based on the layout diagram. It is not necessary to arrange the concrete formwork, and the concrete formwork can be arranged at random to reduce the work on site, and the obtained concrete structure can recognize the huge rock pattern of natural stone sufficiently even from a distance All A huge rock pattern of large monolithic can bring about naturally as. That is, the decorative pattern forming concrete formwork of the present invention does not cause a sense of incongruity in the pattern even if the form is turned upside down and left and right. Such an effect can be obtained. Also, in particular, by making the entire concrete formwork a formwork made of synthetic resin foam,
Since the weight can be further reduced, the transportation becomes easier, and the workability and workability at the site can be further improved.

Further, since the concrete formwork for forming a decorative pattern of the present invention has a substantially H-shaped outer contour in a plane, the formwork can be extremely easily engaged with each other when constructing a combined body. It has excellent properties. In addition, even if the concrete formwork is freely arranged in the up, down, left, and right directions, the joints between the formwork are not monotonous straight lines and are not conspicuous, so the huge rock pattern on the surface of the obtained concrete structure is
As a whole, it is possible to exhibit excellent design properties such as a large monolith in which a huge rock pattern of natural stone can be sufficiently recognized even from a distance. Further, when the concrete form for forming a decorative pattern of the present invention is freely arranged in the up, down, left, and right directions, for example, as shown in FIG. 3, the concrete form is also shown in FIG. It can be easily handled by dividing the wavy line portion into two or four parts. Therefore, when division is performed as necessary, the degree of freedom of cutting is high, and such work can be easily performed by a worker even at a construction site.

Further, the concrete formwork for forming a decorative pattern of the present invention can be made of a cast of aluminum or iron, FRP, or polyurethane resin in addition to being formed of a synthetic resin foam. In particular, when the entire concrete form is made of a synthetic resin foam, the approximate vertical and horizontal dimensions of the substantially H-shaped concrete form as described above are, for example, 90.
0 × 1800 mm, 1800 × 1800 mm, and 3
Even a very large one such as 600 x 3600 mm is excellent in lightness, and as described above,
This is preferable because cutting can be facilitated.

The concrete formwork for forming a decorative pattern according to the present invention is preferably made of a synthetic resin foam, such as a styrene resin, a polyolefin resin, a hard urethane resin, a phenol resin, or the like. A foam obtained by foaming a polyisocyanate resin, an epoxy resin, or the like, or a foam obtained by appropriately mixing these resins can be used. The styrene-based resin may be a polymer having a styrene-based vinyl monomer such as styrene, methylstyrene, or dimethylstyrene as a main constituent unit, and the foamed styrene-based resin material contains the styrene-based monomer in an amount of 50% by weight or more. Monomers composed of a copolymer and capable of copolymerizing with a styrene-based monomer include acrylic acid, methacrylic acid or esters thereof, acrylonitrile, methacrylonitrile, maleic anhydride and the like.

The polyolefin resins include high-density polyethylene, low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-carboxylate copolymer,
Examples thereof include an ethylene-carboxylic acid metal salt copolymer, a crystalline propylene homopolymer, a crystalline propylene-ethylene copolymer, and a crystalline propylene-ethylene diene terpolymer.

In the case where the concrete pattern forming concrete form of the present invention is constructed using a combination formed by arranging the form in the up, down, left and right directions, in practice, usually, at intervals of about 10 m, for example, rubber or the like is used. It is preferable to arrange the telescopic joint members and perform the work.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view and a side view of a concrete formwork for forming a decorative pattern showing one embodiment of the present invention. As shown in FIG. 1, the concrete formwork for forming a decorative pattern according to the present invention has an uneven portion 15 for forming a decorative pattern on the entire surface on the side where concrete is cast.
In order to express a large monolithic megalithic pattern as a whole, an uneven portion 15 is formed in which irregularities reflecting the surface of the natural monolith are irregularly arranged.

The concrete form 1 is made of expanded polystyrene or other foam obtained by, for example, filling foam resin particles in a cavity of a mold, heat-expanding them, and heat-sealing each other. 90 vertical and horizontal dimensions
The length and width ratio is set to 1: 2 as 0 mm × 1800 mm, and the maximum thickness is set to about 200 mm. Note that the difference between the maximum height and the maximum depth of the uneven portion 15 is preferably formed to be at most about 180 mm.

The outline of the plane is substantially H-shaped, and more specifically, the concrete form 1 is formed in a substantially rectangular plane.
Combination recesses 1 at the center of two long sides facing each other
1 is formed. It should be noted that the substantially H shape in the present invention includes a substantially I shape. Concrete formwork 1
2 is surrounded by a side 110 and sides 111 and 111, and the length of the side 110 is provided to be twice the length of the side 112, as shown in FIG. Are arranged in the vertical and horizontal directions. FIG. 2 is a perspective view of a main part of the combined body showing this state.

FIG. 3 is a plan view showing an example of a combined body in which the concrete formwork of the present invention is arranged in the vertical and horizontal directions. As shown in this figure, in the present invention, a concrete form 1 in an undivided state, a concrete form 2 divided into two parts on the left and right, a concrete form 3 divided into two parts vertically, and a concrete form 4 divided into four parts. Combinations can be freely configured in combination. As described above, the concrete form 1 for forming a decorative pattern according to the present invention includes the concrete form 1
The concrete formwork 1 can be freely arranged in the up, down, left, and right directions even if the patterns are randomly arranged, and the concrete form 1 can be freely arranged in the up, down, left, and right directions, so that the worker can easily cut as necessary. Because it is possible, work efficiency is good at the construction site.

Further, since the outer contour of the plane has a substantially H shape, the engagement between the molds can be extremely easily performed, the workability is excellent, and the concrete form 1 can be freely arranged in the vertical and horizontal directions. Even so, the joints between the formwork are not monotonous straight lines and are not noticeable, so the huge rock pattern on the surface of the obtained concrete structure is large as a whole so that the huge rock pattern of natural stone can be sufficiently recognized even from afar. Excellent design properties such as monolith can be exhibited. Therefore,
Even if many types of molds are not prepared, the effects described above can be obtained.

Further, FIG. 4 shows that when assembling the concrete form 1 as described above, concrete is cast so that the concrete form 1 can be easily divided into two or four parts even at the work site. It is a more preferable embodiment to provide a mark such as a wavy line, an intermittent or continuous unevenness on a surface or the like opposite to the side to be formed.

As a method of constructing a retaining wall along a road by using the concrete form 1 described above, for example, at a concrete construction site, as shown in FIG. Concrete is cast on the surface side of the combined body in which 3, 4 are randomly arranged and combined, and after the concrete is solidified, the concrete form 1 is removed to express a huge rock pattern of natural stone on the cast concrete surface. Can be.

Therefore, the expressed giant rock pattern of natural stone has irregular patterns and the joints between the forms are not monotonous straight lines and are not conspicuous. The megalithic pattern can express a large monolithic pattern as a whole such that the megalithic pattern of natural stone can be sufficiently recognized even from afar. In addition, as the decorative pattern provided on the surface of the concrete pattern forming concrete formwork of the present invention on the side where concrete is cast, an example is shown in which a giant rock pattern of natural stone is shown, but the present invention is not limited to such an example. However, the present invention can be applied to, for example, a rock pattern formed as a decorative pattern.

[0022]

As described above, according to the concrete mold for forming a decorative pattern of the present invention, since the form itself has an approximately H-shape in a plane outer shape, the concrete mold for forming a decorative pattern can be formed at a construction site. Since the construction can be easily performed only by combining the frames at random, the work on site can be reduced. In addition, since the patterns are arranged irregularly and the joints between the molds do not become monotonous straight lines, the joints can be made less noticeable. Therefore, by arranging the concrete form and placing the concrete, it is easy to easily obtain a concrete retaining wall or the like having a large monolithic huge rock pattern as a whole such that the huge rock pattern of natural stone can be sufficiently recognized even from a distance. be able to. In addition, by forming the entire concrete formwork for forming a decorative pattern of the present invention from a synthetic resin foam, it is possible to reduce the weight, facilitate transportation, and further improve workability and workability at the site. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view and a side view of a concrete formwork for forming a decorative pattern according to the present invention.

FIG. 2 is a perspective view of a main part of a combination body configured by arranging concrete formwork for forming a decorative pattern in the vertical and horizontal directions.

FIG. 3 is a plan view of a combination body formed by arranging concrete formwork for forming a decorative pattern in up, down, left, and right directions.

FIG. 4 is a plan view of the other side of the concrete pattern-forming concrete formwork of the present invention on the side where concrete is cast;

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Taku Murohashi 2-15-9 Uchikanda, Chiyoda-ku, Tokyo Inside ESLEN Kako Co., Ltd. (72) Inventor Masanari Shigeoka 2-chome Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa 14 27 Toyoko Giken Co., Ltd.

Claims (4)

[Claims] 1. A decorative form forming concrete form provided with a concave and convex portion for forming a decorative pattern on a surface on a side where concrete is cast, wherein the concrete form has a substantially H-shaped contour. A concrete formwork for forming a decorative pattern, characterized in that: 2. A concrete formwork for forming a decorative pattern according to claim 1, wherein the entire concrete formwork is made of a synthetic resin foam. 3. A concrete retaining wall is formed by casting concrete on the surface side of a combined body formed by arranging the concrete pattern forming concrete formwork in the vertical and horizontal directions. Concrete construction method using concrete formwork. 4. A concrete structure obtained by pouring concrete on the surface side of a combined body constituted by arranging the concrete pattern forming concrete form frames in the vertical and horizontal directions.