JPH06185181A - Manufacture of underlay panel - Google Patents

Abstract

PURPOSE:To prevent generation of obstruction for electric waves by spreading a netting material over the surface of a heat insulating plate, spraying mortar and carbon fiber separately so that the netting material is embedded, and thereby forming a substratum. CONSTITUTION:A meshing material 25 consisting of glass mesh, luth, etc., is spread over the surface of a heat insulating material 1 such as extruded foaming polystylene, foaming urethane, etc. From a mortar nozzle 11, cement mortar 13 is jetted so that the meshing material 25 is embedded, while carbon fiber 14 is spouted out of a nozzle therefore 12, and the two are mixed and deposited on the heat insulating material 1. After deposition of the admixture, the surface is graded with a roller 15 so that the surface 3a of substratum is made smooth. This ensures less secular deterioration and unlikelihood of the generation of cracks.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a base panel used for constructing an outer heat insulating wall or the like in a building.

[0002]

TECHNICAL BACKGROUND OF THE INVENTION As a construction method for constructing an outer wall of a building, there are a so-called wet construction method and a dry construction method. The wet method is a method of forming a finishing underlayer by applying cement mortar or the like at a work site. On the other hand, the dry method is a method of forming a finishing underlayer by tensioning a cement plate or the like formed in a plate shape in advance at a work site.

[0003] The wet method has the advantage that a small turn can be obtained because it can immediately cope with any building.
On the other hand, the dry method has the advantage that the construction is easy and the construction period can be shortened, while such a small turning is not effective.

As a base panel used when constructing a wall of an external heat insulating structure by such a dry method, a heat insulating plate having a base layer mixed with glass fibers on the surface has been conventionally used. .

However, in such a base panel, there is a risk that the glass fibers mixed in for improving the mechanical strength of the base layer will be corroded by the alkaline cement mortar, and this panel will be deteriorated with time. There was a risk that the mechanical strength of the In order to prevent this, the alkali-resistant glass fiber having the glass fiber surface coated with an alkali-resistant material such as zirconia oxide is mixed in the cement mortar.

However, in such an alkali resistant glass fiber, the alkali resistance of itself is insufficient, and when the coating material is peeled off,
There is a possibility that the alkali resistance is lowered, and as a result, the mechanical strength of the underlayer in the undercoat panel is lowered. Further, the glass fiber is often cut during kneading, and the cut surface of the cut glass fiber is not subjected to alkali resistance processing, so the glass fiber is eroded from such a cross section and the strength of the glass fiber is reduced. In some cases, the strength of the underlayer decreases over time.

When the mechanical strength of the underlayer is reduced in this way, there is a risk that cracks or the like may occur on the surface of the underlayer. Especially in the wall of the external heat insulation structure, if the base layer in the base panel is damaged, the heat insulating plate is also damaged,
As a result, the entire outer wall is also damaged, so that it has been required to improve the mechanical strength of the base layer in the base panel.

[0008] Further, in recent years, the building has become high-rise, and the reflection of radio waves by the outer wall of this building has become a problem. That is, when the outer wall of the building reflects television waves or the like, so-called ghost phenomenon (double image phenomenon) or noise may occur on nearby televisions or radios.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate such inconvenience, and of course has not only heat insulation but also excellent durability and mechanical strength without cracks and the like. It is an object of the present invention to provide a base panel that does not reflect radio waves and does not cause a ghost phenomenon or noise in a television or the like.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, a method of manufacturing a base panel of the present invention is to embed a mesh body on a surface of a heat insulating plate while extending the mesh body in a surface direction of the surface of the heat insulating plate. Thus, the mortar material is sprayed and the carbon fiber is sprayed to form the underlayer.

The base panel thus formed comprises a heat insulating plate and a base layer formed on the surface of the heat insulating material. The base layer extends a net-like body in the plane direction of the surface of the heat insulating plate,
It is characterized by being a layer formed by spraying a mortar material so that the net-like body is embedded and by spraying carbon fibers.

In the method of manufacturing an underlayer panel of the present invention, the mortar material and the carbon fiber are separately sprayed onto the surface of the heat insulating material as the base material to form the underlayer. Thus, by spraying the mortar material and the carbon fiber separately to form the underlayer, the carbon fiber is less damaged than the case where the carbon fiber is kneaded into the mortar material, and thus the obtained undercoat panel is desired. To have the strength of. That is, since the strength per unit cross-sectional area of carbon fiber is higher than that of glass fiber, the amount of carbon fiber to be sprayed is about half the weight of the glass fiber and the substrate having the desired strength is about half the weight. Panels can be manufactured. Since the amount of fibers blended in the mortar material is small in this way, it is possible to form a highly uniform underlayer with little change in characteristics such as fluidity of the mortar material sprayed on the surface of the heat insulating material. Furthermore, since the net-like body is also embedded in this underlayer, this underlayer panel has good strength.

In such a base panel, by mounting the base panel on the body wall, the heat insulating plate 1 and the base layer 3 can be simultaneously installed on the body wall. Moreover, since carbon fibers are used to reinforce the base layer in the base panel, the carbon fibers themselves have alkali resistance, and the strength per unit cross-sectional area is significantly larger than that of glass fibers. Even if the amount of carbon fiber contained in the material is small (about half the weight of conventional products), sufficient strength is obtained and the carbon fiber that is the reinforcing material is not corroded by alkali, so durability is also It is greatly improved, and the risk of cracks on the wall surface is eliminated.

Further, the carbon fiber contained in the underlayer in the underlayer panel forming a part of the outer heat insulating wall absorbs the radio waves of televisions and radios and controls the amount of radio waves reflected from the underlayer panel of the present invention. Since it can be reduced, ghost phenomenon and noise will not be generated in a nearby TV or radio.

[0015]

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a main part when an outer heat insulating wall is constructed using a base panel manufactured by the manufacturing method of the present invention, and FIG. 2 is a schematic cross-sectional view showing a manufacturing process of the base panel of the present invention. 3 is a schematic cross-sectional view showing in more detail the manufacturing process of the base panel of the present invention.

As shown in FIG. 1, an underlayer panel 20 formed according to the present invention is generally provided on one surface of a heat insulating plate 1,
A base layer 3 made of a mortar material containing carbon fibers is previously formed. Then, in the underlayer 3, a mesh 25 is formed.
Is buried.

In order to manufacture such an undercoat panel 20, for example, as shown in FIG. 2, a heat insulating material 1 is prepared, and an underlayer 3 is formed on the surface of this heat insulating material. Here, as the material for the heat insulating plate 1, plastic foam such as extruded expanded polystyrene, expanded polystyrene, expanded urethane, expanded phenol, expanded isocyanurate or the like is used, and extruded expanded polystyrene is preferably used.

A mortar nozzle 11 and a fiber nozzle 12 for movably holding the heat insulating material 1 and forming a base layer 3 on one surface of the heat insulating plate 1 are arranged. The mortar nozzle 11 and the fibrous nozzle 12 are arranged so that the cement mortar 13 and the carbon fibers 14 ejected from the respective nozzles intersect each other on the way and the cement mortar and the carbon fibers are mixed.

While moving the heat insulating material 1 thus arranged, the cement mortar and carbon fibers on the surface of the heat insulating material 1 are jetted to form the underlayer 3. That is, the cement mortar 13 is ejected from the mortar nozzle 11 arranged as described above, the carbon fiber 14 is ejected from the fiber nozzle 12, and the both are mixed by utilizing respective injection pressures of the heat insulating material 1. It is deposited on the surface so as to have a substantially constant thickness.

As the cement mortar, a normal cement mortar is used. In this cement mortar, an adhesive emulsion such as vinyl acetate, acryl, styrene / butadiene / latex is mixed as a resin. Can be strengthened. Further, other mortar materials may be used.

On the other hand, the mesh 25, as shown in FIG.
It is pushed in the moving direction of the heat insulating material 1. Then, the cement mortar 13 and the carbon fibers 14 are jetted so that the mesh body is buried. Therefore, the cement mortar 13 and the carbon fibers 14 are ejected at least in such an amount that the mesh 25 is buried.

As the mesh 25 used here, a glass mesh, a lath, a welded wire mesh, a polypropylene mesh, a synthetic fiber mesh or the like can be used, but a mesh made of carbon fiber is preferable. As a result, the strength of the base layer in the base panel is further improved, and by using the mesh made of carbon fiber, the carbon fiber contained in the cement mortar and the mesh made of carbon fiber jointly absorb the radio wave. Therefore, the electromagnetic wave absorbing action of the obtained base panel is further increased.

In this way, while pushing the reticulate body on the surface of the heat insulating material 1, a mixture of cement mortar and carbon fiber is deposited on the surface of the heat insulating material, and the surface is smoothed by the roller 15 or the like to form the underlayer 3, 3a Smooth the surface.

In the above manufacturing method, the nozzles 11 and 12 are used.
Although the example of manufacturing the base panel of the present invention by fixing the heat insulating plate 1 and moving the heat insulating plate 1 is shown, instead of moving the heat insulating material 1 or while moving the heat insulating material 1, the nozzle 11,
12 may be moved.

Substrate panel 2 thus manufactured
When the outer insulation wall is constructed by using 0, it is performed as follows. As shown in FIG. 1, first of all, the building body wall A
The base panel 20 made of the heat insulating plate 1 having the base layer 3 formed thereon is stretched on the outdoor side by an adhesive or an adhesive means such as simultaneous driving.

As the skeleton wall A, a precast concrete plate (PC plate), a reinforced concrete structure (RC structure),
Light-weight cellular concrete layer (ALC layer) or wooden construction is considered.

A joint material 2 having a T-shaped cross section such as an inorganic material extruded product or a polystyrene molded product and a sealing material 4 such as silicon are attached to the joints between the respective base panels 20. After that, on the building wall A, with the anchor bolt 5,
The base panel 20 is attached.

By the wall thus constructed, the wall of the external heat insulating structure is formed on the outdoor side of the existing skeleton A. A finish layer is then formed on the outdoor side surface of the finishing base layer 3 of the base panel 20 with paint or the like.

In the base panel manufactured by the method of the present invention as described above, the base panel 20 is used as the frame wall A.
It becomes possible to form the heat insulating plate 1 and the base layer 3 on a new frame wall A at the same time. Moreover, since carbon fibers are used to reinforce the base layer 3 in the base panel 20, the carbon fibers themselves have alkali resistance and the strength per unit cross-sectional area is significantly larger than that of glass fibers. Even if the amount of carbon fiber contained in the mortar material is small (about half the weight of conventional products), sufficient strength is obtained and the carbon fiber as a reinforcing material is not corroded by alkali, so durability It is also greatly improved, and there is no possibility that cracks or the like will occur on the wall surface over time.

Further, since the carbon fibers contained in the underlayer 3 of the underlayer panel 20 forming a part of the outer heat insulating wall absorb the radio waves of television and radio, the radio waves reflected from this wall are Since the phenomenon occurs, ghost phenomenon and noise will not be generated in the nearby TV and radio.

Of course, some of the carbon fibers may be replaced with other inorganic fibers such as glass fibers within the scope of the object of the present invention.

[0032]

As described above, according to the method for manufacturing a base panel of the present invention, a mortar material and a carbon fiber are separately sprayed onto a surface of a heat insulating material which is a base material while a reticulated body is being spread. To form a base layer. By thus separately spraying the mortar material and the carbon fiber to form the underlayer, the carbon fiber is less damaged as compared with the case where the carbon fiber is kneaded into the mortar material, and thus the obtained underlayer panel is desired. To have strength. That is, since the strength per unit cross-sectional area of carbon fiber is higher than that of glass fiber, the amount of carbon fiber to be sprayed is about half the weight of the glass fiber and the substrate having the desired strength is about half the weight. Panels can be manufactured. Since the amount of fibers blended in the mortar material is small in this way, it is possible to form a highly uniform underlayer with little change in characteristics such as fluidity of the mortar material sprayed on the surface of the heat insulating material. Furthermore, since the net-like body is also embedded in this underlayer, this underlayer panel has good strength.

Further, in the base panel produced by the method of the present invention, since the base layer made of the mortar material containing carbon fiber is formed on the surface of the heat insulating plate, cracks and the like do not occur and mechanical strength and durability are improved. It is possible to construct a highly insulating outer insulation wall relatively easily and inexpensively, and even when TV radio waves etc. are incident on this wall, they are mostly absorbed without being reflected, so the ghost phenomenon on TV etc. It has an excellent effect of preventing noise and noise.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts when an outer heat insulating wall is constructed using a base panel according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a manufacturing process of a base panel.

FIG. 3 is a schematic cross-sectional view showing the manufacturing process of the base panel of the present invention in more detail.

[Explanation of symbols]

 A ... Core wall 1 ... Insulating plate 3 ... Underlayer 11 ... Mortar nozzle 12 ... Textile nozzle 20 ... Underground panel 25 ... Net body

Claims (1)

[Claims] 1. The surface of the heat insulating plate is embedded in the surface of the heat insulating plate while the net is being stretched in the plane direction of the surface of the heat insulating plate.
A method for producing a base panel, comprising spraying a mortar material and carbon fibers to form a base layer.