Manufacturing method of structure

Abstract

To provide a method for manufacturing a structure that can easily manufacture the structure that uses a formwork as a buried formwork that integrates with cast structure material and constitutes the structure.SOLUTION: In a method for manufacturing a structure, a surface of a foam material is processed, the processed surface is sprayed with a cementitious material to make a formwork, the foam is removed from the formwork, and material of the structure is cast in the space where the foam has been removed, thereby manufacturing the structure.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a structure.

Background Art

[0002] A method for manufacturing a structure is known in which a structure is manufactured by placing a material for the structure in a formwork (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a method for manufacturing a structure that can easily manufacture a structure using a formwork as an embedded formwork that forms the structure integrally with the placed material for the structure.

Means for Solving the Problems

[0005] One aspect of the present invention is as follows.

[0006] [1] A method for manufacturing a structure, comprising processing the surface of a foam, spraying a cementitious material onto the processed surface to form a formwork, removing the foam from the formwork, and placing a material for the structure in the space from which the foam has been removed to manufacture the structure.

[0007] [2] The method for manufacturing a structure according to [1], wherein a reinforcing material is disposed on the side of the processed surface, and the cementitious material is sprayed onto the reinforcing material to form the formwork.

[0008] [3] The method for manufacturing a structure according to [1] or [2], wherein an enclosed space surrounded vertically is formed by aligning the spaces of the plurality of formworks, and the structure is manufactured by placing the material of the structure in the enclosed space.

Advantages of the Invention

[0009] According to the present invention, it is possible to provide a method for manufacturing a structure that can easily manufacture a structure using a formwork as an embedded formwork that forms the structure integrally with the placed material of the structure.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be illustrated and described with reference to the drawings.

[0012] As shown in FIGS. 1 to 5, in one embodiment of the present invention, a method for manufacturing the structure 1 includes processing the surface of the foam 2 (see FIG. 1), spraying a cement-based material onto the processed surface 2a of the foam 2 to form a mold 3 (see FIG. 3), removing the foam 2 from the mold 3, and placing the material 1a of the structure 1 into the space from which the foam 2 has been removed (see FIG. 5) to manufacture the structure 1.

[0013] According to the above configuration, by forming a processed surface 2a with unevenness on the surface of the foam 2 such as expanded polystyrene through processing such as roughening, pattern cutting, and melting, and spraying and solidifying a cement-based material (such as concrete or mortar) using a spraying nozzle 5 or the like, a mold 3 having an uneven inner surface that transfers the processed surface 2a can be easily formed. In particular, even when the inner surface of the mold 3 must be configured as a curved surface as shown in FIG. 3, the mold 3 can be formed by a simple process of forming the processed surface 2a of the foam 2 as a curved surface with unevenness and spraying and solidifying a cement-based material. Further, after the formation of the mold 3, by placing the material 1a (such as concrete) of the structure 1 into the space formed by removing the foam 2, a structure 1 in which the mold 3 is well integrated through an uneven inner surface that enhances the adhesion performance to the placed material 1a of the structure 1 can be formed. Therefore, according to the above configuration, the structure 1 that uses the mold 3 as an embedded mold that constitutes the structure 1 integrally with the placed material 1a of the structure 1 can be easily manufactured. Also, by using the foam 2 for the formation of the mold 3, the ease of construction and recyclability can be enhanced compared to the case of using a special steel mold having an uneven inner surface. The structure 1 may be, for example, a column, a wall, a floor, a ceiling, or the like. Appropriate shaping and patterning by processing such as cutting and painting may be performed on the outer surface of the mold 3.

[0014] The method for manufacturing the structure 1 may be configured such that a reinforcing material 4 is disposed on the side of the processed surface 2a (see FIG. 2), and a cement-based material is sprayed onto the reinforcing material 4 to form the mold 3 (see FIG. 3). According to the above configuration, the mold 3 reinforced by the reinforcing material 4 such as a reinforcing bar can be easily formed.

[0015] The manufacturing method of the structure 1 may be configured such that a surrounded space S surrounded vertically is formed by a plurality of formworks 3 by aligning the spaces of the plurality of formworks 3 (see Fig. 4), and the structure 1 is manufactured by placing the material 1a of the structure 1 in the surrounded space S (see Fig. 5). According to the above configuration, the structure 1 such as a column or a wall can be easily formed. The joining structure of the adjacent formworks 3 when assembling the plurality of formworks 3 is not particularly limited. For example, as shown in Fig. 6, it may be composed of a convex portion 6 and a concave portion 7 that can be fitted, or as shown in Fig. 7, it may be composed of a pair of convex portions 6 provided alternately so as to be fitted. In the case of manufacturing a large structure 1 such as a pier, as shown in Fig. 5, reinforcing bars 1b, separators 1c, etc. may be installed in the surrounded space S as necessary. The formwork 3 may be formed at the construction site of the structure 1, or may be formed at a production facility such as a factory.

[0016] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the above-described embodiments can be variously modified without departing from the gist of the present invention.

Explanation of Signs

[0017] 1 Structure 1a Material 1b Reinforcing bar 1c Separator 2 Foam 2a Processed surface 3 Formwork 4 Reinforcing material 5 Spraying nozzle 6 Convex portion 7 Concave portion S Surrounded space

Claims

**Claim 1** A method for manufacturing a structure, comprising processing the surface of a foam, spraying a cementitious material onto the processed surface to form a mold, removing the foam from the mold, and placing the material of the structure into the space from which the foam has been removed to manufacture the structure. **Claim 2** The method for manufacturing a structure according to claim 1, wherein a reinforcing material is disposed on the side of the processed surface, and the cementitious material is sprayed onto the reinforcing material to form the mold. **Claim 3** The method for manufacturing a structure according to claim 1, wherein the spaces of a plurality of the molds are combined to form an enclosed space surrounded in a vertical view by the plurality of molds, and the structure is manufactured by placing the material of the structure into the enclosed space.

Images