JP2510381B2 - Form for concrete panel molding - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete panel molding frame, and more particularly to a concrete panel molding frame used when molding a lightweight cellular concrete panel.

[0002]

[Background Art] In recent years, the unit construction method, which has come to be widely used for building buildings such as houses, uses modular building units such as a living room unit and a roof unit, which are assembled with various parts constituting the building, in a factory. After production, these building units are transported to the construction site, and at the construction site, these building units are combined to construct a unit building. Such a unit construction method has the advantages of simplifying the work at the construction site and shortening the construction period.

In such a unit building, so-called ALC (lightweight cellular concrete) outer wall panels are often used as outer wall materials. This outer wall panel is manufactured by the following procedure.

First, a panel original plate is molded by pouring concrete slurry into a mold in which a pattern plate for forming a predetermined uneven pattern is arranged on the panel surface. And
After a lapse of a predetermined time, the panel original plate is released from the mold. However, in order to smoothly remove the panel original plate from the mold, a release agent is applied to the pattern board in advance before the concrete slurry is poured. The panel original plate after demolding is subjected to autoclave curing, whereby a light-weight cellular concrete outer wall panel is completed.

[0005]

However, in the conventional manufacturing method, depending on the shape of the pattern board, the concrete slurry does not spread all the way to the molding surface of the pattern board, and a desired pattern cannot be formed on the panel surface. There is. This is as much as when molding a complicated uneven pattern on the panel surface,
It becomes remarkable.

Therefore, in order to improve the followability of the concrete slurry to the molding surface, it is possible to increase the fluidity by increasing the water content of the concrete slurry. At the same time, there is a problem that the surface layer of the original plate of the panel easily peels off, the defective rate of the concrete panel increases, and the yield decreases.

The present invention has been made in view of the above circumstances, and it is possible to mold a concrete panel using a concrete slurry having low fluidity, and it is possible to reduce the defective rate of the molded concrete panel. An object is to provide a mold for molding a concrete panel that is possible.

[0008]

SUMMARY OF THE INVENTION The present invention provides a corner on one surface.
Concrete panel with a pattern of continuous stretched unevenness
For concrete panel molding used for molding
It is a formwork, and at room temperature, the first concave and convex curved surface is formed continuously.
As well as a shape, a pattern of said one surface of said concrete panel when a temperature at the time of concrete hardening
Shape memory alloy has been stored so as to restore the second shape is disposed in a mold bottom surface corresponding angular irregularities are continuous in
It is characterized by

[0009]

In the present invention, the bottom surface of the mold has a curved surface at room temperature.
It has the first shape with continuous irregularities, and when it reaches the temperature at the time of solidification of concrete,
Since a shape memory alloy that deforms into a second shape in which angular irregularities corresponding to the pattern of one surface are continuous is arranged,
Shape 2 spreads concrete slurry
Even if it has angular irregularities that are difficult to
Plane-like unevenness with no corners against concrete slurry
Concrete slurry with low fluidity due to low resistance
But you can spread it all the way to the bottom of the formwork.
Wear. Therefore, a pattern that exactly matches the second shape is
It can be surely formed on one surface of the cleat panel, and it is possible to form a concrete panel using a concrete slurry having low fluidity. After demolding concrete panels
Shape memory alloy has a first shape as its temperature decreases.
Because of the deformation, the shape before placing concrete slurry
Suitable for forcing concrete slurry to force memory alloy
It is possible to omit the trouble of deforming the shape.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a concrete panel molding form according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a concrete panel molding form according to an embodiment of the present invention, and FIGS. 2 to 4 are square-walled on one surface by the concrete panel forming form of FIG.
It is sectional drawing which shows the effect | action at the time of forming the concrete panel provided with the pattern in which the uneven | corrugated which continued .

Form 10 for concrete panel molding shown in FIG.
Is composed of a frame member 12 having a U-shaped cross section, a pattern plate 14 and the like. A pattern plate 14 is arranged on the inner bottom surface of the frame member 12. The pattern plate 14 is made of a shape memory alloy, and stores the first shape shown in FIG. 1 at room temperature around 20 ° C.

The first shape is a shape when the concrete slurry 16 described later is cast on the mold 10.
In order to spread the concrete slurry 16 all the way to the molding surface of the pattern board 14, the unevenness of the curved surface is continuous.
It has a shape with no corners.

At a temperature of 40 ° C to 50 ° C at which the lightweight cellular concrete solidifies , the pattern on one surface of the molded product
The second shape shown in FIG. 3 in which the angular irregularities corresponding to is continuous is stored. That is, the shape memory alloy used for the pattern board 14 has a reversible property capable of memorizing the first shape of FIG. 1 at room temperature and the second shape of FIG. 3 at the temperature at which the lightweight cellular concrete solidifies. It is a shape memory alloy.

When a lightweight cellular concrete panel is molded using the concrete panel molding frame 10 constructed as described above, it is carried out as follows.

First, as shown in FIG. 2, concrete slurry 16 is poured into the mold 10 at a predetermined height. Formwork 10
Although not shown in the drawing, a reinforcing material for reinforcing the panel is arranged therein. At this time, the pattern plate 14 is kept at the first shape because it is at room temperature. This first shape is a shape having a low resistance to the concrete slurry 16, that is,
The concrete slurry 16 has a continuous shape of curved surface asperities on which the pattern slurry 14 can be cast.

Therefore, when the fluidity of the concrete slurry 16 is low, that is, even if the concrete slurry 16 has a certain degree of stickiness, the concrete slurry 16 can be spread all over the molding surface of the pattern board 14.

After a lapse of a predetermined time, the concrete slurry 16 cast in the mold 10 gradually solidifies, but with this solidification, heat of hydration is generated in the concrete slurry 16 and the concrete slurry 16 contacts. Pattern board 1
As for No. 4, the temperature rises to 40 ° C to 50 ° C.

Then, the pattern plate 14 changes from the first shape shown in FIG. 2 to the second shape shown in FIG. 3 with the temperature rise due to the action of the shape memory alloy used for the pattern plate 14. . Here, the second shape, one face of the concrete panel after molding, i.e. <br/> in shape corresponding to the pattern of the molding surface Oh Rutotomoni, concrete slurry 16 spreads
It has difficult-to-use angular irregularities . From the first shape to the second
The change to the shape is performed along with the solidification of the concrete slurry 16, but the shape change is completed by the time the solidification of the concrete slurry 16 progresses.

The panel original plate 18 formed by solidifying the concrete slurry 16 is removed from the mold 12 as shown in FIG. Although not shown, this demolding is performed with the molding frame 10 standing upright. The demolded panel original plate 18 is autoclaved to be a lightweight cellular concrete panel. The pattern plate 14 from which the panel original plate 18 has been demolded gradually restores to the first shape as the temperature decreases.

As described above, in the present embodiment, the shape memory alloy is used for the pattern plate 14, and the first shape in which the curved irregularities suitable for placing the concrete slurry 16 are continuous and the pattern of the molding surface are formed. The second shape, which is a continuous shape of angular irregularities corresponding to , is stored in the pattern board 14 so as to be restored to the first shape at normal temperature and to the second shape at the time of solidification of concrete by each temperature change. I have to.

Therefore, the second shape has angular irregularities.
Then, the concrete slurry 16 was spread all over.
Although the shape is difficult to make, the unevenness of the first shape
Concrete slurry with low fluidity due to its curved shape
Make sure that even 16 spreads over the entire molding surface of the pattern board 14.
The pattern surface of the pattern board 14 is exactly the same as that of the pattern board 14.
You can surely form the panel original plate 18 with one side
Therefore, the defective rate of concrete panels can be reduced.

Further , the surface of the panel is continuously formed with angular irregularities.
Even when molding complex patterns such as
Since it becomes possible to use the reed slurry 16,
The surface of the panel may peel off during demolding.
Can be prevented. This prevents defective products
As a result, the yield of concrete panels is improved.
I do. And, the pattern board 14 after the panel original plate 18 is demolded,
As the temperature decreases, it deforms to the first shape.
Before placing the concrete slurry 16, the pattern board 14 is placed.
Suitable for placing concrete slurry 16
It is possible to omit the trouble of deforming the shape.

Further, in the present embodiment, the shape of the pattern plate 14 was changed by utilizing the heat of hydration when the concrete slurry 16 solidifies. You may change into a shape.

Further, in this embodiment, the case of molding a concrete panel made of lightweight cellular concrete has been described, but the present invention can be applied to the case of molding a normal concrete panel.

[0026]

As described above, according to the present invention,
Reliably molded concrete panels having one face in <br/> desired pattern using less liquid concrete slurry
In addition, it is possible to prevent peeling of the panel surface during demolding, which contributes to a reduction in the defective rate of the concrete panel.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a concrete panel molding form according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the operation when a concrete panel is molded by the concrete panel molding frame of FIG.

FIG. 3 is a cross-sectional view showing an operation when a concrete panel is molded by the concrete panel molding frame of FIG.

FIG. 4 is a cross-sectional view showing the operation when a concrete panel is molded by the concrete panel molding frame of FIG.

[Explanation of symbols]

 10 Mold for Forming 12 Frame Material 14 Pattern Board 16 Concrete Slurry 18 Panel Original Plate

Claims (1)

(57) [Claims] 1. A pattern in which angular irregularities are continuous on one surface
Used to form concrete panels with
It is a formwork for concrete panel molding that bends at room temperature.
With surface irregularities is in the first configuration that is continuous, the angular irregularities corresponding to the pattern of the one surface of the concrete panel when a temperature at the time of concrete hardening
A formwork for concrete panel molding, characterized in that a shape memory alloy, which is stored so as to restore to a continuous second shape, is arranged on the bottom face of the formwork.