JP2613898B2 - Manufacturing method of ALC material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a method for producing an ALC material (a lightweight cellular concrete material cured with high-pressure steam).

(Problems to be Solved by the Invention) Conventionally, when producing an ALC material, an expandable hydraulic composition such as mortar is filled with a reinforcing material such as a reinforcing steel wire mesh from one end of a horizontal formwork. Upon injection, the flow of the composition was obstructed by the reinforcement and could not be uniformly injected into the mold. For this reason, the upper surface of the foam-coagulated composition is inclined, and the upper debris after cutting is removed by a suction box, for example,
However, there are problems that it is difficult to perform a suction treatment with the method described in JP-A-48-29368 and that troubles such as exposure of a reinforced mat or the like are likely to occur.

The present invention has been made in view of the above problems.
The purpose is to propose a method of manufacturing an ACL material that can be poured into a mold and solidified, the upper surface of the composition becomes flat, the above-mentioned waste can be easily treated, and troubles such as exposure of a reinforcing material can be prevented. .

(Means for Solving the Problems) The method for producing an ALC material of the present invention uses a mold for producing an ALC material in which an upper surface side is opened and a plurality of reinforcing materials are also arranged in the longitudinal direction of the mold. Then, in a state in which the mold is inclined, the foamable hydraulic composition for producing the ALC material is injected into the inclined upper position,
This is a method for producing an ALC material, which comprises returning the mold to a horizontal position after injection, allowing the foamable hydraulic composition to undergo further foaming and coagulation, cutting and molding the resultant, and subjecting it to high-pressure steam curing.

In this production method, since the foamable hydraulic composition is injected into the upper position of the inclined mold, the reinforcing material such as a reinforcing mat is also arranged in the longitudinal direction of the mold. It is easy to flow to the side and can be evenly injected into the mold in a short time.
As a result, the foamable hydraulic composition can be foam-solidified to a uniform foam height.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

FIG. 1 shows a state in which a plurality of reinforcing bar mats 2 fixed by using holding members such as set rods are also arranged in the longitudinal direction of a mold within a rectangular parallelepiped mold 1 in a horizontal state. As shown in the figure, it is necessary to hold the reinforcing bar mat by a holding tool such as a set rod, and because the mold is a mold for injecting the foamable hydraulic composition for ALC production to be foamed in the mold. As described above, the mold 1 is a mold whose top surface is open.

Prior to injecting the foamable hydraulic composition for ALC production using metal aluminum as a foaming agent, the electric jack 3 disposed near one side of the lower surface of the mold 1 is extended to form the mold as shown in FIG. 1 is tilted.

Next, as shown in FIG. 3, the foamable hydraulic composition 4 for ALC production is injected into the inclined mold 1 at a position near the upper side wall surface. The foamable hydraulic composition 4 flows in the inclined direction, but the flow of the composition is hindered by the presence of the reinforcing bar mat 2 as a reinforcing material, and as a result, a layer having a substantially uniform thickness is formed over the entire surface of the mold. .

The foamable hydraulic composition 4 is injected in an amount that is lower than the height of the mold (normally about half the height of the mold) in anticipation of the amount of foaming and height increase in the mold 1. Even when the injection of the expandable hydraulic composition 4 is completed, the expandable hydraulic composition 4 maintains the fluidity. Therefore, when the injection of the expandable hydraulic composition 4 is completed, the electric jack 3 is shrunk to remove the mold. Frame 1 is returned to a horizontal state. The foamable hydraulic composition 4 for ALC production uniformly injected into the mold 1 is foamed and solidified thereafter. Therefore, the upper surface is a horizontal surface as shown in FIG.

When the hydraulic composition 4 thus foamed and solidified is in the plastic state, as shown by the cutting line 5 in FIG.
The upper layer of 10 cm is cut horizontally and simultaneously to a predetermined width and thickness in the vertical direction to form a plate having dimensions of the product. At this time, since the top surface of the foamed and solidified composition is horizontal, the cutting chips 6 in the upper surface layer have a uniform thickness, and are sucked by the suction box to easily remove the cutting chips 6 without leaving any suction residue.
Can be removed. In addition, the reinforcing bar mat 2 as a reinforcing material is not exposed.

In the prior art, suction residue remains, and a trouble that damages a molded product that is a product in a process of removing the suction residue by hand or the like is likely to occur. Sometimes it was.

In this manufacturing method, the angle at which the mold is inclined needs to be set in accordance with conditions such as the dimensions of the mold, the degree of tightness of the reinforcement arrangement of reinforcing materials such as reinforcing steel mats, and the viscosity of the composition. For example, the viscosity of the hydraulic composition during production of the ALC material is 500 to 650 gcm
When the length of the mold is 450 to 750 cm, the inclination angle is 0.5 to 1.5 °.

(Effects of the Invention) The present invention is as described above, and it is possible to facilitate the disposal of upper surface debris after cutting and forming the foamed solidified body, and to improve the efficiency of the manufacturing process.

In addition, it is possible to prevent the molded article from being damaged due to the waste treatment, to prevent the reinforcing material from being exposed, and to improve the product yield.

[Brief description of the drawings]

The drawing is a longitudinal sectional view of a mold that sequentially shows the steps of the embodiment,
FIG. 1 shows a standby state, FIG. 2 shows a state in which the mold is inclined, FIG. 3 shows a state in which the foamable hydraulic composition is injected, and FIG. 4 shows a state in which the injection is completed and the state is returned to a horizontal state. FIG. 1. Formwork with open upper surface 2. Reinforced mat (reinforcing material) 3. Electric jack 4. Foamable hydraulic composition 5. Cutting line 6. Cutting debris.

Claims (1)

(57) [Claims] 1. A mold for producing an ALC material having an open upper surface and a plurality of reinforcing members arranged in the longitudinal direction of the mold, and the mold for producing an ALC material is tilted. The foamable hydraulic composition is injected into the inclined upper position, and after the injection, the mold is returned to a horizontal position to further foam and coagulate the foamable hydraulic composition, which is cut and molded, and is subjected to high-pressure steam curing. ALC material manufacturing method.