JPH01148508A - Manufacture of autoclaved lightweight concrete material - Google Patents

Abstract

PURPOSE:To facilitate the disposal of waste top surface layer, which is produced by cutting-off a foam set body, and contrive to prevent a formed body from being damaged and reinforcing material from exposing by a method wherein composition is poured under the condition that a frame is tilted at the upper tilted position and, after pouring, the frame is brought back horizontally. CONSTITUTION:When a frame 1 is tilted by stretching a motorized jack 3, which is installed on the underside of the frame 1 near its one side so as to pour mortars 4 at the position near the wall surface on the upper side side of the frame, the mortar 4 flows in the tilt direction, resulting in forming a layer of mortars 4 with nearly uniform thickness over the whole surface of the frame. After the completion of pouring, the frame 1 is brought back to the horizontal state and, after that, the mortars 4 expand and set so as to make their top surface horizontal. Further, when the mortars 4 are in plastic state, a portion 6 having the thickness of 2-10cm of a top surface layer is cut off horizontally as indicated with a cutting line 5. At the same time, the resultant mortars are cut vertically by the predetermined thickness so as to form plate material or the like. In this case, the cut-off layer 6 of the top surface layer has a uniform thickness, resulting in easily being removed with a suction box without leaving suction remainder and exposing reinforcing material such as reinforcing bar mat or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing ALC material (lightweight cellular concrete material cured with high pressure steam).

[Problem that the invention seeks to solve]

Conventionally, when manufacturing ALC materials, when a foamable hydraulic composition such as mortar is injected from one end of a horizontal formwork in which reinforcing materials such as steel wire gauze are arranged, the flow of the composition is caused by the reinforcement. It was not possible to pour it evenly into the formwork because it was obstructed by the material. For this reason, the top surface of the foamed and solidified composition is slanted.
The upper layer after cutting and molding is placed in a suction box (for example,
-29368), there were problems such as difficulty in suction treatment and the possibility of problems such as exposure of reinforcing steel mats, etc.

This invention has been made in view of the above-mentioned problems. The purpose is to propose a manufacturing method for ALC material that is injected into a formwork, the solidified composition has a flat top surface, the upper layer can be easily processed, and problems such as reinforcement material being exposed can be prevented. .

[Means and Examples for Solving Problems] This AL
The manufacturing method of C board is to inject a foamable hydraulic composition into a mold with reinforcing material, foam and solidify it, and then cut and mold it to form ALC.
The method for producing the material is characterized in that, when injecting the composition into a mold, the mold is tilted, the composition is injected into an upper position of the slope, and after injection, the mold is returned to a horizontal position.

In this manufacturing method, mortar, which is a foamable hydraulic composition, is injected into the upper part of the inclined formwork, so it tends to flow from the upper side to the lower side even in the formwork where reinforcing materials such as rebar mats are arranged. , it can be easily and evenly poured into the mold in a short time.

Hereinafter, the present invention will be explained with reference to illustrative embodiments.

FIG. 1 shows a state in which a reinforcing bar mat 2 is fixed in a rectangular parallelepiped formwork 1 in a horizontal state using a holder (not shown) such as a set rod. Prior to pouring mortar, which is a foamable hydraulic composition, an electric jack 3 disposed near the bottom side of the formwork 1 is extended to tilt the formwork 1 (see FIG. 2).

Mortar 4 is placed near the upper side wall surface of the formwork 1 in an inclined state.
(See Figure 3). The mortar flows in the inclined direction, and the mortar has an approximately even thickness over the entire surface of the formwork4.
form a layer. When the injection of mortar 4 is completed, the electric jack 3 is retracted to return the formwork 1 to a horizontal state. The mortar 4 evenly poured into the formwork 1 is then foamed and solidified, and the upper surface becomes a horizontal surface (see FIG. 4).

When the mortar 4 foamed and solidified in this manner is in a plastic state, the upper surface layer 2 to 10 cIr as shown by the cutting line 5 in FIG.
The L-thickness portion is cut horizontally and at the same time vertically to a predetermined thickness and formed into a plate or the like. At this time, since the upper surface of the foamed and solidified composition is horizontal, the cutting debris 6 on the upper surface layer has a uniform thickness and can be easily removed by suction with a suction box without leaving any suction residue. In the past, suction residue remained, and the process of removing this residue tended to cause damage to the molded product. Since the horizontal top layer is cut to a predetermined thickness, reinforcing materials such as rebar mats are often exposed.

In the manufacturing method, it is necessary to set the angle at which the formwork is tilted depending on conditions such as the dimensions of the formwork, the spacing and density of reinforcement, and the viscosity of the composition. For example, the mortar viscosity when manufacturing ALC material is 5
00~650g・My formwork length 450~750crr
In the case of L, the inclination angle is 0.5 to 15°.

〔Effect of the invention〕

The present invention is as described above, and after cutting and molding the foamed solidified product, it is easy to dispose of the waste on the upper surface layer, and the manufacturing process can be made more efficient. Furthermore, damage to the molded body and exposure of the reinforcing material due to waste disposal can be prevented, and product yield can be improved.

[Brief explanation of the drawing]

The drawings are longitudinal sectional views of the formwork showing the steps of the example in order,
Fig. 1 shows the state in which the mold is ready, Fig. 2 shows the formwork in a tilted state, Fig. 3 shows the state in which mortar is being poured, and Fig. 4 shows the state in which the mold has been returned to the horizontal state after the pouring is completed. 1. Formwork, 2. Rebar mat, 3. Electric jack, 4. Mortar, 5. Cutting line, 6. Cutting waste. Asahi Kasei Corporation: Ceremony Company

Claims (1)

[Claims] (1) In a method of manufacturing an ALC material by injecting a foamable hydraulic composition into a mold provided with a reinforcing material, foaming and solidifying the composition, and cutting and molding the composition, when injecting the composition into the mold,
A method for producing an ALC material, which comprises tilting a mold, injecting a composition into an upper position of the slope, and returning the mold to a horizontal position after injection.