JP2655947B2 - Construction method of concrete driving wall using formwork and thermal insulation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a concrete-casting wall using a heat-insulating material which is also used as a formwork. The present invention relates to a construction method of a wall that can be used.

[0002]

2. Description of the Related Art Conventionally, it has been widely and generally practiced to heat-insulate concrete walls as a means of saving energy in buildings. In the construction of reinforced concrete (RC) or steel-frame reinforced concrete (SRC), As a heat insulating material in such heat insulating construction, a synthetic resin foam is widely used in terms of heat insulating properties and hygroscopicity.

In the construction in this case, as shown in FIG. 4, from the viewpoint of cost or shortening of the construction period, the heat insulating material 12 with double-sided paper or the inside of the concrete driving formwork 6 forming the concrete wall is provided. The synthetic resin foam plate is fixed by nailing 13 and concrete is poured into the space 11 in the molds 6 and 6, and the concrete is hardened and the heat insulating material 12 is formed.
In general, a method of adhering the mold to concrete and then removing the formwork 6 is performed. In the figure, 7,
Reference numeral 8 denotes a longitudinally and laterally thick material for suppressing swelling of the mold, 9 denotes a separator for maintaining the space of the space 11 and holding down the heat insulating material 12, and 10 denotes a stopper. .

That is, in the conventional construction method, many steps such as installation of a heat insulating material, construction of a formwork, casting of concrete, dismantling and clearing of thick wood, plywood and plywood, and finishing are required. This is because the heat insulating material or foam plate to be bonded to the concrete is weak in strength and cannot withstand the lateral pressure when concrete is poured, so a concrete formwork must be provided separately. If the foam plate is deformed due to water absorption or temperature change from the soiled concrete, if the nailing with the mold is insufficient, a gap will be created between the molds and the foam plate etc. This is because the connection between the foam plate and the formwork is filled with concrete, and heat bridges, cold bridges, etc. are generated, which may impair the heat insulation performance of the building.

On the other hand, as a solution to these problems, there has been proposed a heat insulating material in which a hard surface material capable of withstanding the lateral pressure when concrete is poured is adhered to the surface of the heat insulating plate (Japanese Patent Application Laid-Open No. Sho.
In addition, the present applicant has also characterized in that a surface material laminated earlier with an adhesive from the foam surface on both front and back surfaces of a heat insulating layer made of a rigid synthetic resin foam. And a concrete-implanted formwork panel structure using the board.

[0006] This type of insulating material also serving as a formwork and a construction method using the same, constitute a formwork of a concrete-implanted formwork itself, and the surface material adhered to the surface of the heat insulating plate serves as an interior base material. It is widely used in today's construction sites because the construction period can be shortened by, for example, obtaining the same.

[0007]

However, when the concrete-injected vertical wall is constructed using the above-mentioned known heat-insulating material, the reinforcing face material laminated on the surface of the synthetic resin foamed heat-insulating material causes the concrete-injected vertical wall to work. It is possible to omit the mold on the side of the heat insulating material and to simplify a certain work process as compared with the conventional method.However, in order to prevent the deformation of the surface of the heat insulating material also serving as the form due to the side pressure of the poured concrete, It is necessary to carry out the process of assembling the thick wood and the arbor in the same manner as in the prior art. At this time, since the process does not use a formwork, it is necessary to make the gap between the thick ends, particularly the vertical thick ends to some extent and provide them at equal intervals. If there is a variation in stress, stress tends to concentrate on the wider portion, and the surface of the heat insulating material may be deformed at the time of placing concrete, resulting in a wavy irregular surface as a whole.

In order to avoid this, skilled workers pay careful attention to assembling the timber at the construction site, but in practice, the timber is installed in the entire construction area. It was extremely difficult to assemble them at equal intervals throughout. In addition, today, as the number of skilled workers themselves is decreasing, it has become increasingly difficult to assemble and construct already-developed formwork / insulation materials to buildings in a form that makes full use of their advantages. I'm trying.

The present invention solves such a problem, and in a method of constructing a concrete-filled vertical wall using a heat-insulating material that also serves as a formwork, simplifies the assembling process of the formwork-in-place and eliminates the need for relying on skilled workers. It is an object of the present invention to obtain a construction method which enables a short and reliable assembling work of a thick material.

[0010]

In order to achieve the above object, according to the present invention, the outside of two formwork which are arranged side by side facing each other is fixed with a temporary reinforcing material to form a concrete driving space. A method of casting concrete in a space and curing it to form a wall, and as at least one formwork,
A formwork / heat insulating material in which a face material is laminated on at least one surface of a rigid synthetic resin foam, and a mark line-attached formwork heat insulating material having a mark line at regular intervals on the entire surface of the face material. The material is used such that the sign line side is on the outside, and the temporary reinforcing material is installed using the sign line of the formwork and heat insulating material with the sign line as an installation reference line. Disclose and provide a forming method for forming.

[0011] The object can be effectively achieved by providing the marker line in parallel along the vertical and horizontal sides of the heat insulating material, regardless of whether the heat insulating material is used in the longitudinal direction or the horizontal direction. In addition, by providing a plurality of sets of marker lines having different intervals, it is possible to effectively perform the construction by using the same shape of heat insulating material in different construction environments.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on one embodiment. In the present invention, as a base material, at least one surface of a heat insulating layer made of a rigid synthetic resin foam, a formwork / heat insulating material itself in which a face material is laminated is a conventionally known material as described above. An example is as follows.

For example, as the heat insulating material made of a rigid synthetic resin foam to be used, polystyrene foam, polyethylene foam, polypropylene foam, polypropylene foam, rigid urethane foam, phenol foam, isocyanate foam, epoxy foam And the like.
The thickness of the heat insulating layer is not particularly limited and can be arbitrarily selected according to the construction environment.

The reinforcing layer to be laminated on the heat insulating material can be composed of at least one selected from the group consisting of a water-resistant liner, a water-resistant kraft, a glass fiber nonwoven fabric, an asbestos nonwoven fabric, and carbon paper. This reinforcement layer bears the compressive tensile stress of the front and back surfaces generated when concrete is poured in the heat insulating material of the present invention, and secures dimensional stability against natural environmental changes such as rain, direct sunlight, etc. from formwork assembly to concrete driving. It is for doing.

Further, as the surface material, for example, asbestos paper, glass fiber non-woven fabric, polyester fiber non-woven fabric, calcium carbonate and pulp, glass mixed paper (charcoal paper) and the like can be used. Each layer, for example, for bonding between liner paper as a reinforcing layer and calcium carbide paper as a surface layer material, a bonding thin film such as an adhesive polyethylene or ethylene-vinyl acetate copolymer as an adhesive, and heat bonding. May be performed.

When the heat insulating material of the present invention constructed as described above is used as at least one formwork of the concrete-implanted formwork panel structure, it is arranged side by side as a normal concrete-implanted formwork panel. When two concrete forms to be fixed with a temporary reinforcing material, for example, a thick material, to form a concrete implantation space between the two forms, without using the thick material as at least one of the forms, Insulation can be used as is.

FIG. 1 is a cross-sectional view of an embodiment of a mold and heat insulating material used in the construction method of the present invention. The heat-insulating material 1 also uses an extruded polystyrene foam as the heat-insulating layer 2, and is heat-bonded to the front and back surfaces of the heat-insulating layer 2 with a bonding polyethylene thin film interposed therebetween for bonding. It is obtained by laminating face materials 5 having at least a two-layer structure composed of a reinforcing layer 3 and an adhesive surface layer 4.

In this case, the formwork heat-insulating material 1 only needs to adopt at least a two-layer structure of the reinforcing layer 3 and the adhesive surface layer 4 as a structure of the face material 5. Thereby, it is possible to withstand the lateral pressure of the concrete without being deformed until the concrete is poured, and to secure the adhesiveness with the concrete. Further, the heat-insulating material 1 also serves as a temporary reinforcing material on the surface of the face material 5.
For example, a marker line which is a standard for the position of the vertical thick member 7 to be built is formed at regular intervals. FIG. 2 shows an example of a positional relationship between the formwork heat insulating material 1 and the vertical end thick material 7 when a concrete driving space is formed by using the formwork heat insulating material 1 provided with such a marking line. . In FIG. 2, three types of marker lines A, B, and C are provided on the surface of the face material 5 of this
Are shown, and the vertical thick material 7 is attached on the marker line A. In addition, the marker line A is provided in parallel along the short side of the heat insulating material 1 at intervals of 20 cm, for example, and the marker line B is provided in parallel along the long side of the heat insulator 1 at intervals of 15 cm, for example. Further, the marker line C is provided at an intermediate position between the marker lines A and A in parallel with them.

FIG. 3 schematically shows a concrete-implanted formwork panel structure constructed by the construction method of the present invention using such a formwork and heat insulating material. A method of constructing a concrete-implanted vertical wall using the mold and heat insulating material according to the present invention will be described below with reference to FIGS. In constructing this panel structure, first, two formwork which are arranged side by side facing each other are built. In this embodiment, the heat insulating material 1 of the present invention is used for only one of the molds, and the normal control panel material 6 is used for the other mold. Is also possible. Next, the heat insulation material 1 that also serves as a mold
After attaching the required number of separators 9 to the other formwork and the normal control panel material 6, the vertical end thick members 7 and 7 are attached to both outer surfaces of the formwork / heat insulation material 1 and the control panel material 6. . In this assembly, since the normal panel material 6 is not used on the heat insulating material 1 side, it is required that the thick materials on the heat insulating material side be installed at equal intervals as much as possible. Therefore, in the present invention, in order to make it possible to easily install the thick members at equal intervals, the heat insulating material 1 also serves as a mold as shown in FIG.
Marking lines formed at regular intervals on the surface of the face material 5 are used.

That is, in order to attach a thick material to the surface using the form and heat insulating material 1 provided with a marker line according to the present invention, the operator appropriately selects a required marker line already displayed. Then, place and fix the thick material to the position. Therefore, unlike the conventional method, it is not necessary to measure the mounting position of the timber using a type of measure each time.
Thick lumber can be attached at equal intervals over the entire construction area, and as a result, the working time is greatly reduced and the working accuracy is greatly improved.

By forming such a marker line also along the other side of the heat insulating material, for example, as a marker line B in FIG. In this case, it is also possible to attach thick ends at equal intervals, and it is possible to respond to various requirements at the construction site. Further, a marker line having a different interval like the marker line C may be provided, and in such a case, it is possible to cope with more construction environments.

Further, in the above embodiment, the marker lines of the mold and heat insulating material are all shown as being equally spaced as a result, but one set of marker lines is provided at an interval of xcm, and It is also possible to form a plurality of sets of marker lines at different intervals on the surface of the same formwork / insulating material, such as providing a set of marker lines at intervals of ycm. The means to be attached is not particularly limited, and means for visually recognizing the presence of a marker line such as a means by printing, a means by marking, and a means for simultaneously forming a marker line due to irregularities on the surface material itself when molding the surface material. Any means that can be used may be used. Furthermore, in the case of attaching a plurality of types of marker lines, the shape of the marker lines is changed according to, for example, the thickness of the line, the solid line and the broken line, or the hue is changed so that they can be individually identified. This is also an extremely effective means. In any case of using the form and heat insulating material of any of the above forms, the operator can select an appropriate one of the attached marking lines as a reference line and attach the thick material. It is possible, and the work efficiency can be greatly improved.

Next, after the temporary reinforcing members 8 in the horizontal direction are attached by appropriate fixing means, concrete 15 is poured into the created space 11 in the same manner as before, and the concrete is cured and solidified. The concrete vertical wall having the heat insulating material is formed by dismantling and removing the formwork, the edge material and the like. Thereafter, if necessary, a required finishing process is performed on the face material of the heat insulating material.

In the above embodiment, only the heat insulating material 2 having the face materials 5 laminated on both sides is shown. However, the purpose can be sufficiently achieved even if the face materials are laminated on only one side, or The surface on which the line is formed may be either double-sided or single-sided. In addition, this marking line is used as a reference line at the time of dimensional adjustment of the formwork and heat insulating material 1 before construction.
Alternatively, it is effective as a mark line when attaching the finishing material or interior material to the surface material 5 because it remains on the surface of the surface material 5 even when the thick material or plywood is dismantled after the completion of construction. There is also an advantage available.

[0025]

According to the method for constructing a concrete-implanted vertical wall using a heat-insulating material which also serves as a form according to the present invention, at least two of the reinforcing layer and the adhesive surface layer are formed as described above.
Since a plurality of marker lines are provided on the surface of the face material having a layer structure, the concrete can be used as it is without using any extra formwork in concrete construction such as RC construction and SRC construction. In addition to being able to drive, it is possible for any number of people to easily, reliably and promptly install the required thick materials at equal intervals, with high precision with little deflection between the thick materials It is possible to obtain a practically great effect that a finish can be obtained and the working time can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a mold and heat insulating material used in the present invention.

FIG. 2 is a view showing a state where a thick material using a mold / heat insulator according to the present invention is assembled.

FIG. 3 is a schematic diagram of a case where concrete is cast using the heat insulating material that also serves as a mold according to the present invention.

FIG. 4 is a sectional view of a panel structure by a conventional construction method. DESCRIPTION OF SYMBOLS 1 ... Insulation material which also serves as a formwork, 2 ... Heat insulation layer, 3 ... Reinforcement layer, 4 ...
Adhesive surface layer, 5: face material 7, 8: thick material, A, B, C: marker line

Claims (1)

(57) [Claims] 1. A construction in which the outside of two formwork which are arranged side by side facing each other is fixed with a temporary reinforcing material to form a concrete driving space, and concrete is poured into the space and cured to form a wall. A method, wherein at least one of the formwork includes:
Laminate the face material on at least one surface of the rigid synthetic resin foam
Forming and heat insulating material , having a marking line at regular intervals on the entire surface of the face material.
Forming the wall by using the marker line side to be outside and installing the temporary reinforcing material using the marker line of the formwork and heat insulating material with the marker line as an installation reference line. Construction method.