JP2003013513A - Manufacturing method for external heat insulating member and manufacturing method for external heat insulating pc concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for an external heat insulating PC concrete plate capable of simply and continuously manufacturing an external heat insulating PC concrete plate constructed in a job site only by sticking to an existing wall so as to shorten the term of construction work. SOLUTION: According to the manufacturing method, a process of laying a glass fiber mesh on one side surface of a flat plate-like thermal insulating material by applying a mortar adhesive, drying the same, and then applying a finishing material to the surface where the glass fiber mesh is laid to manufacture and external heat insulating member, and a process of bonding the previously manufactured precast concrete plate and the other side of the heat insulating material of the above external heat insulating member with the mortar adhesive are sequentially performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an outer heat insulating member or an outer heat insulating PC concrete plate which is attached to an existing wall such as a wall, a pillar or a beam of a building such as an apartment house or a hospital.

[0002]

2. Description of the Related Art In winter, many houses suffer from dew condensation on the walls. Invisible dew condensation inside the wall can also cause mold and allergies, so external insulation methods to prevent these are attracting attention. The walls of buildings such as houses and hospitals are completely wrapped with heat insulating material from the outside, which has the effect of making the building last longer. As such an outer insulation method, there is a wet outer insulation method for constructing an existing wall regardless of whether it is a new building or a used building. In the wet external insulation method, an insulating material such as expanded polystyrene is adhered to the existing wall of the building, a reinforcing fiber such as glass fiber mesh or mesh reinforcement is adhered to the insulating material with a mortar adhesive, and a finishing material is applied. It is constructed by the method. This method is used as one of the effective external heat insulation methods because it uses materials that are relatively inexpensive and easily available, has strength and durability, and reliably wraps the building from the outside.

[0003]

However, in this wet type outer insulation method, since the work around the outer wall is performed, it is necessary to install the scaffold. In addition, a plasterer is required in the mortar adhesive application process, and it is desirable to secure skilled human resources. In addition, all the work of covering the heat insulating material with the glass fiber mesh or the mesh streaks is done manually, which takes time and labor and raises the construction cost. There is also the problem that plastering work on a scaffold is dangerous.

Therefore, an object of the present invention is to provide an outer heat insulating member or an outer heat insulating PC which can be constructed by simply sticking it to an existing wall on site.
It is an object of the present invention to provide a method for manufacturing an outer heat insulating member or an outer heat insulating PC concrete plate, which is capable of easily and continuously manufacturing a concrete plate to shorten the construction period.

[0005]

Under the circumstances, as a result of intensive studies by the present inventors, as a result, a glass fiber mesh is laid and laid with a mortar adhesive on a flat heat insulating material, and a finishing material is applied. The external insulation member manufactured in the factory by the method described above can be installed on the site simply by pasting it on an existing wall, and the external dimensions are the same as those of the external insulation member.
If the method of adhering the concrete board in the factory is adopted, it is possible to easily and continuously manufacture the external insulation PC concrete board that can be constructed by simply pasting it on the existing wall at the site, and to shorten the construction period. As a result, the present invention has been completed.

That is, according to the present invention, a glass fiber mesh is laid on one surface of a plate-shaped heat insulating material by applying a mortar adhesive, and after drying, the glass fiber mesh is laid on the surface on which the glass fiber mesh is laid. The present invention provides a method for manufacturing an outer heat insulating member, which is obtained by applying a finishing material.

According to the present invention, a glass fiber mesh is laid on one surface of a flat heat insulating material by applying a mortar adhesive, and after drying, the glass fiber mesh is laid on the surface on which the glass fiber mesh is laid. A step of applying a finishing material to produce an outer heat insulating member, and a step of adhering a precast concrete plate preliminarily produced and the surface of the outer heat insulating member on the other side of the heat insulating material with a mortar adhesive are sequentially performed. The present invention provides a method for producing a characteristic external heat insulating PC concrete board.

According to the present invention, a glass fiber mesh is laid on one surface of a plate-shaped heat insulating material by applying a mortar adhesive, and after drying, the glass fiber mesh is laid on the surface on which the glass fiber mesh is laid. The step of applying a finishing material to produce an outer heat insulating member, and laying the concrete heat in a formwork with the finished surface of the outer heat insulating member facing down, and placing concrete on the upper surface side of the outer heat insulating member. The present invention provides a method for manufacturing an outer heat-insulating PC concrete board, which comprises sequentially performing the steps of forming an inner board.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A method for manufacturing an external heat insulating PC concrete board according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram for explaining each step A to J in the manufacturing process of the outer heat insulating member, FIG. 2 is a partial cross-sectional view of the mold in which the heat insulating material is arranged, and FIG. 3 is a plan view of the mold in which the heat insulating material is arranged. ,
FIG. 4 is a diagram for explaining the process B in FIG. 1, and FIG. 5 is a diagram for explaining the process D in FIG.

A glass fiber mesh is laid on one surface of the flat insulating material of the present invention by applying a mortar adhesive, and after drying, a finishing material is applied to the surface on which the glass fiber mesh is laid. Specifically, the process of applying and manufacturing the outer heat insulating member is a process shown by A to J in FIG. 1. That is, for example, 600 mm x 300 mm x 4
Insulating material 1a in the form of a flat plate such as 5 mm styrofoam
b, ..., multiple, for example, inside dimension 4.8m x 2.1
Arrange them so that there is no gap in the m frame 21 (FIGS. 2 and 3).

The heat insulating material 1 placed on the mold is transferred to the base coating stage 4 by the roller conveyor 5 (see FIG. 1).
(A), (B)). The heat insulating material 1A on the mold placed on the base coating stage 4 is subjected to a pretreatment (base coating treatment) for laying a glass fiber mesh on the upper surface thereof.
Mortar adhesive is applied. The mortar adhesive is not particularly limited, and a mortar and a known adhesive are kneaded at an appropriate ratio. The base coating method is
In this example, the method using the nozzle 3a is performed. Application of the heat insulating material in the width direction is performed by moving the nozzle 3a by driving the motor, and application of the heat insulating material in the longitudinal direction is performed by moving the carriage by driving the motor. It is also possible to simultaneously drive two motors, one for moving in the width direction and the other for moving in the longitudinal direction, to perform diagonal coating (FIG. 4).

The base coating film 2 is formed on the upper surface of the heat insulating material 1A by the traveling of the nozzle 3a. After the base coating film 2 is applied and formed by the nozzle 3a, a uniform film is formed, so that the application surface is evened by the leveling roller 22. As a result, a uniform base coating film 2 is obtained. Leveling roller 2
The number 2 is not particularly limited, but a plurality of rollers and a wrap arrangement in the longitudinal direction are preferable in that a more uniform coating surface can be obtained (FIG. 4). When a single roller is used, the weight of the roller causes deflection, which tends to make it difficult to obtain a uniform coating surface.

A heat insulating material 1 having a base coating film 2 formed on the upper surface thereof.
A is transferred to the glass fiber mesh laying stage 7 by the roller conveyor 5 while being arranged in the mold (FIGS. 1C and 1D). The glass fiber mesh is laid on the entire surface of the base coating film of the heat insulating material 1A on the mold placed on the glass fiber mesh laying stage 7. As the glass fiber mesh, the one used in the conventional wet external insulation method that is conventionally applied on site can be similarly applied. That is, the glass fiber mesh is
It is a fire-resistant one made of glass fibers and a reinforcing bander and knitted into a mesh of thread-like fiber bundles, and is used for the purpose of reinforcing external heat insulating materials. In this example, the glass fiber mesh is laid by using the mesh roller 61 with the glass fiber mesh 6 wound around it. The mesh roller 61 is rotated and the cart is laid while running in the longitudinal direction of the mold. The mesh roller 61 can be supplied by dropping from the upper portion, and is supported by a receiving roller for dropping the mesh roller 61 provided on the carriage. At the time of running, the glass fiber mesh 6 is pressed by the leveling roller 24 toward the mesh laying stage 7 to run. As a result, the base coating film 2 and the glass fiber mesh 6 are firmly adhered and a uniform thickness can be obtained. Grass Fiber Mesh 6
When the laying is completed, the disc cutter 23 is run in the width direction to cut the glass fiber mesh 6 (FIG. 5). In FIG. 5, reference numeral 25 is a start end presser, and reference numeral 26
Is the rear end presser.

After the installation of the glass fiber mesh 6 is completed, the glass fiber mesh installation heat insulating material is transferred to the base recoating stage 8 by the roller conveyor 5 for each frame (FIG. 1 (E)). The heat insulating material 1A on the mold placed on the base re-coating stage 8 is coated with the mortar adhesive again on the laid surface of the glass fiber mesh 6.
The re-base coating film 2a is applied and formed by the nozzle 3b.
As a result, the glass fiber mesh 6 is more firmly bonded to the heat insulating material, and a uniform film thickness can be formed. Further, after the re-base coating film 2a is formed, a leveling roller (not shown) may be used to further form a uniform film surface.

The re-base-coated board 9 is transferred to the stock table 10 by the roller conveyor 5. On the stock table 10, the re-base-coated board 9 is dried for one day and at the same time, it is sent to the finishing material coating stage 11 for coating the finishing material. The stock table 10 is not particularly limited, but since the number of boards 9 manufactured in one day is large, it is preferable to save space with the stock table 10 having a three-dimensional shelf. That is, since the three-dimensional stock stand 10 applies the finishing material to the board dried on the previous day on the day, the previous day stock shelf 102 for stocking the board 9 for the previous day and the today stock shelf 101 for stocking the board 9 re-base applied today. Those having a are preferred.
The board 9 may be fed laterally by the chain conveyor method from the stock shelf 101 of the present day to the stock shelf 102 of the previous day, and the board may be vertically fed by the lifter method between the upper and lower shelves by the stacked stock method. Therefore, in order to send the drying board to the finishing material application stage 11, the elevating vertical feed roller conveyor installed in the lateral feeding conveyor section moves between shelves, and then the chain conveyor sends it to the finishing material application stage 11. To do.

The drying board 9 sent to the finishing material application stage 11 is coated with the finishing material to form the outer heat insulating member 14. The finishing material is applied by the same method as the above-mentioned base application. That is, the coating film 1 of the finishing material is applied to the upper surface of the drying board 9 by running a nozzle, which is not shown
3 is formed. The finish material coating film 13 is formed by a nozzle and then formed into a uniform film.
The coating surface is made uniform by 2 and the total film thickness of the base coating film 2 and the finishing material coating film 13 on the upper surface of the heat insulating material is 3 mm or less. 1 and 5, the glass fiber mesh layer 6 forms a layer different from the base coating film 2 and the finishing material coating film 13, but this is a schematic representation for understanding the manufacturing method. Actually, the glass fiber mesh layer 6
Are buried in the base coating film 2. By setting the total film thickness of the base coating film 2 and the finishing material coating film 13 on the upper surface of the heat insulating material to 3 mm or less, the moisture permeation resistance is reduced, and the water vapor in the room is smoothly released to the outside, effectively preventing dew condensation. can do. Further, in applying the finishing material, it is possible to change the finishing surface by preparing a leveling roller corresponding to various surface finishing shapes and replacing the roller. That is, it is possible to form a pattern by making unevenness on the roller surface and pressing it against the finish material coating film. The outer heat insulating member 14 manufactured by such a method is removed from the mold 21 after drying.

Next, the outer heat insulating member 1 coated with the finishing material.
No. 4 is directly attached to an existing wall with a mortar adhesive or the like, or is joined to a precast concrete plate manufactured in advance. When joining with a pre-cast concrete board manufactured in advance, specifically, a method of bonding the pre-cast concrete board manufactured in advance and the other surface of the heat insulating material of the outer heat insulating member with a mortar adhesive (hereinafter, referred to as a bonding method. (Also referred to as), and a method of forming an inner plate by laying a concrete casting formwork with the finished surface of the outer heat insulating member facing downward and placing concrete on the upper surface side of the outer heat insulating member. Hereinafter, also referred to as concrete placing method).

In the bonding method, first, a mortar adhesive is applied to a precast concrete plate which is manufactured in a separate manufacturing line and is placed flat. The same mortar adhesive as that used for the base coating can be used. Then, the outer heat insulating member obtained in the steps A to J is dropped with the finishing material surface facing upward along a guide attached to the precast concrete board, and the other surface of the heat insulating material of the precast concrete board and the outer heat insulating member is dropped. And are bonded to obtain an external heat insulating PC concrete board. After the adhesive is hardened, the outer insulation PC concrete board is transferred to the stockyard by a crane. In this case, in order to protect the heat insulating material, it is preferable to install it vertically.

In the concrete pouring method, the outer heat insulating member obtained in the steps A to J is laid on the concrete pouring formwork with the finished surface facing downward. At this time, in order to protect the finished surface, sand or powdery soil is laid in the formwork. Further, it is preferable that the surface of the heat insulating material on the side opposite to the finished surface is provided with irregularities in advance in order to ensure adhesion with concrete. Next, wall reinforcement is installed on the heat insulating material in the form for reinforcing the PC concrete plate. The arranging method is not particularly limited, and a known method is adopted. Next, concrete is poured by pouring the concrete onto the upper surface side of the outer heat insulating member. After placing
Wait for the concrete to harden by steam curing, and then remove the mold after hardening. The outer insulated PC concrete board obtained by demolding is transferred to the stockyard by a crane. In this case, in the same manner as the bonding method, it is preferable that the heat insulating material is placed vertically in order to protect it.

The external heat insulating member produced by the method of the present invention is
It consists of heat insulating material, glass fiber mesh, mortar adhesive layer and finish coating material from the inside of the building, and the thickness dimension formed by the glass fiber mesh, mortar adhesive layer and finish coating material outside the heat insulating material is 3 mm or less. is there. The outer heat insulating member thus formed has a lower moisture permeability resistance in order from the existing wall toward the outer side, and the water vapor in the room is smoothly discharged to the outside to effectively prevent dew condensation.
Further, a plurality of external heat insulating members manufactured by the method are prepared, and the external heat insulating member is applied to an existing wall by a mortar adhesive material or the like regardless of whether it is a new building or a used building.

The external insulation PC concrete board manufactured by the method of the present invention comprises a precast concrete board, a heat insulating material, a glass fiber mesh, a mortar adhesive layer and a finish coating material from the inside of the building, and a glass outside the heat insulating material. The thickness dimension formed by the fiber mesh, the mortar adhesive layer and the finish coating material is 3 mm or less. The outer heat-insulating PC concrete board thus formed has a smaller moisture permeation resistance toward the outside than the precast concrete board, and the water vapor in the room is smoothly released to the outside, effectively preventing dew condensation. Further, a plurality of external heat insulation PC concrete boards manufactured by the method are prepared and attached to an existing wall regardless of whether it is a new building or a used building.

[0022]

According to the present invention, an outer heat insulating member or an outer heat insulating PC concrete board which can be constructed by simply pasting it on an existing wall at the site can be manufactured simply and continuously to shorten the construction period. . Also, unlike the conventional wet outer insulation method, there is no need for scaffolding installation or dangerous work for plasterers.

[Brief description of drawings]

FIG. 1 shows each step (A) in the manufacturing process of the outer heat insulating member.
It is a figure explaining (J).

FIG. 2 is a cross-sectional view of a part of a formwork in which a heat insulating material is arranged.

FIG. 3 is a plan view of a mold in which a heat insulating material is arranged.

FIG. 4 is an enlarged view showing a step B in FIG.

FIG. 5 is an enlarged view showing a step D in FIG. 1.

[Explanation of symbols]

1 heat insulating material 1A, 1a, 1b heat insulating material 2 arranged in a mold 2 base coating film 3a, 3b coating nozzle 4 base coating stage 5 roller conveyor 6 glass fiber mesh 7 glass fiber mesh laying stage 8 base recoating stage 9 rebase Coated board 10 Three-dimensional stock table 11 Finishing material application stages 12, 22, 24 Leveling roller 13 Finishing material 14 Outer heat insulating member 21 Form 23 Disc cutter

Continued front page    F term (reference) 2E001 DB05 DD01 DH12 EA03 FA04                       GA12 GA29 GA42 HA01 HA04                       HA33 HD09 LA04                 2E162 CA11 CA31 CE08 DA01 EA11

Claims (5)

[Claims] 1. A glass fiber mesh is laid on one surface of a flat heat insulating material by applying a mortar adhesive, and after drying, a finishing material is applied to the surface on which the glass fiber mesh is laid. A method for manufacturing an external heat insulating member, which is obtained by 2. The method for manufacturing an outer heat insulating member according to claim 1, wherein the total thickness of the mortar adhesive coating layer and the finishing material coating layer is 3 mm or less. 3. A glass fiber mesh is laid on one surface of a flat heat insulating material by applying a mortar adhesive, dried, and then a finishing material is applied to the surface on which the glass fiber mesh is laid. An outer heat insulating member, and a step of sequentially bonding a precast concrete plate and a surface of the outer heat insulating member on the other side of the heat insulating material with a mortar adhesive. Method for manufacturing heat insulating PC concrete board. 4. A glass fiber mesh is laid on one surface of a flat heat insulating material by applying a mortar adhesive, and after drying, a finishing material is applied to the surface on which the glass fiber mesh is laid. The step of manufacturing the outer heat insulating member, and laying the finished heat-insulating member on the concrete pouring form with the finished surface facing down, and placing concrete on the upper surface side of the outer heat-insulating member to form the inner plate. A method for manufacturing an external heat-insulating PC concrete board, which comprises sequentially performing a forming step. 5. The outer heat-insulated PC concrete board according to claim 3, wherein the total thickness of the mortar adhesive coating layer and the finishing material coating layer is 3 mm or less. Method.