KR0130405B1 - Treatment of light weight foam concrete panel - Google Patents

Abstract

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Description

Lightweight foam concrete panel, manufacturing method and bubble removing device

1: (A), (B), (C) is sectional explanatory drawing of the principal part of the lightweight foamed concrete panel which concerns on this invention, respectively.

1 (D) is an explanatory diagram according to the panel transition direction showing the state of the reinforcement core

2 is the name of the private facility with a plurality of reinforcing cores arranged in the mold.

3 is a side view of a state in which a plurality of reinforcing bars are fixed through the holding tool in the mold.

4 is a drawing of the office facility in a state where an injection mechanism for injecting water, which is a degassing insert, is inserted into a mortar filled in a mold.

5 is a perspective view of the distal end of the injection device.

6 (A), 6 (B) and 6 (C) are explanatory diagrams of a state in which water is discharged by recognizing the leading end of the injection pipe as the main root of the reinforcing bar.

7 is a cross-sectional explanatory view of the main portion of the lightweight foam concrete panel according to the present invention in a state different from that of FIG.

FIG. 8 is an explanatory view showing an injection mechanism which is a degassing insert having a shape different from that of FIG.

FIG. 9 is an explanatory diagram showing a state in which water is injected by acknowledging the leading end of the injection pipe of the injection mechanism of FIG.

10 is an explanatory diagram showing a state in which a degassing insert different from the above example is used.

FIG. 11 is a diagram showing the positional relationship between the main root and the degassing insert as shown in FIG. 10 in FIG.

12 is an enlarged perspective view of the degassing insert used in FIG.

13 is a view showing a scattered state of water or the like according to the second manufacturing method,

14 is a view showing a state of use of the degassing insert.

15 is a view showing an example of a rod-shaped rotating body.

16 is a view showing another example of the vertical rotary body.

17 shows an example of a rod-shaped vibrating body.

18 is a diagram showing another example of the rod-shaped vibrating body.

19 is a side view showing an example of a rod-shaped rotating body that can be poured.

FIG. 20 is a bottom view of FIG. 19. FIG.

FIG. 21 is a view showing a combination example of the rod-shaped rotary body of FIG. 15 with an injection mechanism capable of injecting water and the like.

22 is a side view showing an example of a bubble removing device.

FIG. 23 is a side view of another operating state of the apparatus of FIG. 22. FIG.

24 is a cross-sectional view of a mold in which reinforcing materials having different lengths are disposed.

25 is an enlarged view of the auxiliary lifting means and the adjusting means.

26 is a structural diagram of a groove cam of the injection pipe pitch change unit.

27 is a front view of the bubble removing device in the state of FIG.

FIG. 28 is an enlarged view showing the entrance of FIG. 27 and showing the relationship with FIG.

29 is a side view of FIG. 28;

30 is an explanatory view of the upper surface of the driven guide of the reinforcing bar retaining frame.

Figure 31 is a cross-sectional view of the main portion of a conventional lightweight foam concrete panel.

FIG. 32 is a diagram showing an example of the relationship between mortar defoaming rate and time injected into a mold. FIG.

* Explanation of symbols for main parts of the drawings

1: Conventional lightweight foam concrete panel 2: Reinforcement bar

3: rough and large voids 4: small voids

5: outer peripheral root portion 10: lightweight foamed concrete panel according to the present invention

11: reinforcing bar 1la: main bar

1lb: nearby 12: outer periphery root area

13: reinforcing core consisting of neutralized part 14: light-bubble concrete substrate part

15: mold 16: reinforcing bar retainer

17: reinforcing bar retaining frame 18: mortar

19: water supply hose 20: injection pipe

21: injection mechanism 30: lightweight foamed concrete panel according to the present invention

31: reinforcement core 32: water supply hose

33: injection pipe 34: injection mechanism

42: water supply hose 43: injection pipe

44: hole 46: scattering means

47: layer of water, etc. 48: insert for degassing

49: tip 51: rod-shaped rotating body

52: stirring blade 53: rod-shaped rotating body

55 bar-shaped vibrating body 55a vibration arm

56: vibrator 57: rod-shaped vibrating body

57a: vibrating arm 58: vibrator

60: stirring blade 61: shaft

62: water hole 63: a hole to pour water

64: injection pipe 70: lifting means

71: main lifting means 72: auxiliary lifting means

73 support 74 support frame

75: hydraulic cylinder 76: connector

77: guide rail 78: support

79: guide rail 80: support

81: first lifting means 82: second lifting means

83: output drive unit 84: adjusting means

85: roller 86: home cam

86a: groove 87: cylinder

88: guide rail 89: support frame

90 cylinder 91 rail

92: lifting guide 93: liquid transfer

94: automatic liquid flow control valve 95: moving means

96: moving body 97: driving source

98: Pinion Gear 99: Rack Gear

100: mount 101: rail

102 support body 103 driven device

104: guide rail 105: mount

106: connector 107: cylinder

108: guide rail 109: mobile stand

110: guide roller 111: end

The present invention relates to a lightweight foamed concrete panel having bubbles, and more particularly, to a lightweight foamed concrete panel reinforced with an end portion of the panel, a method for manufacturing the same, and a bubble removing device for manufacturing the lightweight foamed concrete panel.

Conventional lightweight foam concrete panels inject mortar slurry using metal aluminum powder or surfactant into lime and siliceous materials into a frame in which a reinforcing bar is set in a predetermined position, and if necessary, after the mortar slurry has passed to some extent, After cutting the desired panel size, it can be made by autoclaving curing.

Thus, the lightweight foam concrete panel is composed of an autoclave cured lightweight foamed concrete substrate and reinforcing bars arranged in the panel to supplement the strength of the lightweight foamed concrete substrate of the reinforcing bars, and have a structure having the necessary strength for use as a whole. It was.

However, the above-described conventional reinforcement is in a lightweight foam concrete panel disposed therein, so that there is no reinforcement in the panel periphery. The panel periphery in which this reinforcing bar is not arrange | positioned (henceforth outer periphery root part) has the problem of strength, such as a brittleness, compared with the inside in which the reinforcing bar is arranged.

In addition, the conventional lightweight foamed concrete panel obtained by the above-mentioned conventional manufacturing method is located at the top of the reinforcement of the lightweight foamed concrete panel 1, that is, at the top of the reinforcement, as shown in FIG. 31, for example. In the vicinity of the main root 2, in particular, upward, rough and large voids 3 are likely to occur, and a large number of small voids 4 are also likely to occur above the rough and large voids.

The cause of these voids 3 and 4 is that bubbles generated in the filled mortar in the mold collapse. Bubbles generated in the mortar gather and float as large bubbles, and while some of them have low mortar viscosity, some of them do not float to the surface and disappear. Since the mortar viscosity gradually increases, many bubbles are located above the uppermost root of the reinforcing bar 2. In the lightweight foamed concrete panel obtained as described above, voids (3) and (4) exist in the lightweight foamed concrete panel, because the mortar hardens as it is, and the mortar hardens as it is. There was a problem that the strength of the outer peripheral root portion 5 of the panel was significantly deteriorated.

Conventionally, many techniques for preventing the formation of these kinds of voids 3 and 4 in advance have been disclosed.

For example, Japanese Patent Application Laid-Open No. 64-9704 discloses that the air bubbles generated in the mortar are eliminated by simply piercing and extracting a rod from the upper surface of the mortar for lightweight foamed concrete filled in the mold. ) And (4) are also proposed to be reduced.

In Japanese Patent Publication No. 64-102467, a synthetic resin emulsion solution and an alkali silicate solution are mixed and injected into a light-foamed concrete panel obtained by autoclaving curing, and a void formed around the reinforcing bar. Thereafter, a technique of filling the voids by injecting a slurry of the polymer cement composition is also proposed.

Moreover, although it is not a technique which removes the space | gap (3) and (4) of the upper part of the reinforcement of the light weight foam concrete panel (1) mentioned above, ie, the main bar (2) which is located in the upper part of the reinforcement bar, it is Japanese Patent Laid-Open No. 63 In 257605, it is proposed to prevent panel end defects by incorporating reinforcing fibers in a raw material slurry for lightweight foamed concrete.

However, in the technique described in Japanese Patent Application Laid-Open No. 64-9704, it is possible to reduce the voids 3 and 4 near the top of the reinforcing bar, i.e., the main bar 2 located at the top of the reinforcing bar. However, it is impossible to improve the strength of the outer root portion of the panel, and in the method of filling the voids with the autoclave curing, if the voids are not continuous to the upper surface of the panel, the filling becomes impossible and discontinuously downward. There existed a problem that an existing space | gap part cannot charge.

In addition, in the technique of adding the fiber, the panel end portion can be strengthened, but it is impossible to eliminate the voids 3 and 4 in the vicinity of the main root 2 located at the uppermost part. There is a problem that cutting by the piano wire becomes impossible before autoclave curing, which has been conventionally performed in the production of aerated concrete panels.

It is an object of the present invention to solve these conventional problems, to provide a lightweight foamed concrete panel having a novel structure in which the strength of the outer circumferential root portion of the panel is improved and there are no large voids thereon. In addition, the present invention provides a method for manufacturing the panel or a bubble removing device for manufacturing the lightweight foam concrete panel.

The lightweight foamed concrete panel according to the present invention is a lightweight foamed concrete panel reinforced by arranging the reinforcing bars therein, and from the vicinity of the reinforcing bar 11 toward the end of the panel, the surrounding lightweight foamed concrete substrate portion 14 The reinforcement core 13 which consists of continuous neutralization part which has a density higher than the density of this is formed and comprised, It is characterized by the above-mentioned.

That is, the neutralization part which has a high density is formed continuously in the location which consists of the panel end from the reinforcement bar 11 vicinity, and the neutralization part formed in this way becomes the reinforcement core 13, and the lightweight foam concrete panel around it It has been found that the outer circumferential root portion of can be firmly reinforced, and thus, the present invention has been completed.

The neutralizing part in the present invention has a density higher than the general density of 0.45 to 0.55 (g / cm 3) of the light-bubble concrete substrate part (part of the light-bubble concrete except the reinforcing bar) which does not contain rough and large bubbles near the neutralizing part. It is a part which has, and is a part which becomes a density of 0.60-0, 80 (g / cm <3>) preferably. As a reinforcing core which consists of this neutralization part, it is preferable that it is the same composition as the said lightweight foam concrete. In particular, when the density difference is caused in the lightweight foamed concrete substrate by the position in the panel (for example, the position in the mold up and down direction), it is preferable to arrange the reinforcement core on the end side (the upper side of the mold) having a smaller density.

According to the drawings will be described a lightweight foam concrete panel according to the present invention. (A), (B), and (C) of FIG. 1 are enlarged sectional views of the main part of the lightweight foam concrete panel, respectively, in the present invention. That is, the lightweight foamed concrete panel 10 shown in (A), (B), and (C) of FIG. 1 passes from the uppermost major root 11a of the reinforcing bar 11 through the outer peripheral root portion 12 of the panel. The reinforcement cores 13 which consist of continuous neutralization part toward the edge part are formed, respectively. And the reinforcement core 13 which consists of the neutralization part of these panels 10 exists along the longitudinal direction of a panel, as shown in FIG. 1 (D).

These reinforcement cores 13 are continuously formed in the belt form among the lightweight foamed concrete panels 10. In particular, FIG. 1A forms the reinforcing core 13 of the neutralization part from the position surrounding the outer circumferential part of the main root 11a to the end, and FIG. 1B shows the end from the trademark surface of the main root 11a. The reinforcement core 13 is formed so that it may connect to and the reinforcement core is formed in FIG. 1 from the upper part to the edge part rather than the main root 11a.

The average cross-sectional width 13 of the reinforcing cores in the first (A) to (C) is preferably the diameter of the main root 11a or larger than that, and is about 1.0 to 3.0 times the size thereof. . The reinforcing core 13 is preferably extended continuously in the longitudinal direction of the main root 11a, but may be extended intermittently.

As shown in Fig. 1A, the structure in which the reinforcing core 13 is surrounded by the outer circumferential portion of the main root 11a is more effective in strength than in the other embodiments. Any of the reinforcement cores 13 of the lightweight foamed concrete panel 10 shown in Figs. 1A, 1B, and 1C is, as described above, compared to the light-weight foamed concrete substrate 14 around it. It is comprised with high density, and the reinforcement core 13 reinforces the outer periphery root part 12. As shown in FIG.

As a composition material for light-weight foamed concrete panels used as a raw material mortar of such a lightweight foamed concrete panel, it may be used for the manufacture of a normal lightweight foamed concrete panel. For example, the composition is a lime-based raw material such as cement or quicklime. And silicate raw materials such as pulverized silica and the like as a main component, and if necessary, gypsum, lightweight foamed concrete pulverized powder, and the like are added, mixed with water, and the metal aluminum powder is used as a foaming agent to form bubbles. You may add. Moreover, this invention is applicable also to the mortar which used the foaming agent by surfactant etc. instead of foaming agents, such as a metal aluminum powder.

As a first method of manufacturing the lightweight foamed concrete panel of the present invention, the production of the lightweight foamed concrete panel 10 in which mortar is injected into the mold 15 on which the plurality of reinforcing bars 11 are arranged and passed. In the method, after the mortar is injected, water or an aqueous solution for slowing the viscosity rise of the mortar is injected into the vicinity or the upper part of the reinforcing bar 11.

As a more preferable aspect of the first manufacturing method, in the first manufacturing method, after arranging the degassing adsorbent in the vicinity or the upper part of the reinforcing bar 11 in advance, mortar is injected and the mortar is at a predetermined height. It is a manufacturing method which inject | pours water or aqueous solution for slowing the viscosity rise of mortar into mortar from this degassing insert, and in the said 1st method, after mortar reaches predetermined height, A gas insert is inserted into or near the reinforcing bar 11, and water or an aqueous solution for slowing the increase of the mortar viscosity is injected into the mortar from the degassing insert.

The latter manufacturing method tends to make the degassing insert a compact device. In the latter case, it is preferable to horizontally move the degassing insert while injecting water or an aqueous solution into the mortar to slow the increase of the mortar viscosity from the degassing insert.

As a second method of manufacturing the lightweight foamed concrete panel of the present invention as described above, in the manufacturing method of the lightweight foamed concrete panel 10 in which mortar is injected into the mold 15 on which the plurality of reinforcing bars 11 are arranged and passed. After the mortar is injected, water or an aqueous solution for slowing the viscosity rise of the mortar is dispersed on the surface of the mortar, the mortar is foamed to a predetermined height, and then the degassing insert is placed near or on the reinforcing bar 11 in the mortar. There is a method of manufacturing a lightweight foam concrete panel, characterized in that the insertion and horizontal movement, and as a third method, after the mortar is injected into the mold 15 in which the plurality of reinforcing bars 11 are arranged, and foamed, Lightweight foam concrete panel, characterized in that the rotating body is inserted into the vicinity or the upper portion of the reinforcing bar 11 in the mortar, and moved horizontally while applying a rotary motion There is a manufacturing method, and as a fourth method, mortar is injected into the mold 15 on which the plurality of reinforcing bars 11 are arranged and foamed, and then a rod-shaped vibrating body is inserted into or near the reinforcing bar 11 in the mortar. There is a method for manufacturing a lightweight foam concrete panel, characterized in that the horizontal movement while applying at least one of horizontal vibration and vertical vibration.

In the third manufacturing method, water or an aqueous solution is injected into the mortar from the rod-shaped rotors 51 and 53 to insert the rod-shaped rotors 51 and 53 and at the same time to slow the increase of the mortar viscosity. It is preferable to move horizontally while applying rotation clouds while increasing the density of the neutralization portion, and in the fourth method, the rod-shaped vibrators 55 and 57 are inserted and the viscosity of the mortar increases. It is preferable to horizontally move while applying at least one of horizontal vibration and vertical vibration while injecting water or an aqueous solution for slowing down into the mortar from the rod-shaped vibrators 55 and 57, since the density of the neutralizing portion becomes larger.

In any of the manufacturing methods of the present invention, the manufacturing method is similar to the conventional manufacturing method of the lightweight foam concrete panel. First, as shown in FIG. 2 and FIG. 3, the plurality of reinforcing bars 11 are arranged. Starts by injecting mortar for lightweight foamed concrete panels into the mold 15.

In manufacturing the lightweight foamed concrete panel 10 according to the present invention, as shown in FIG. 2, a plurality of reinforcing bars 11 are arranged in parallel in the mold 15, and as shown in FIG. Each reinforcing bar 11 is held in the reinforcing bar retaining frame 17 formed above the mold 15 via the reinforcing bar holder 16. Each reinforcing bar 11 has a plurality of main roots 11a arranged in the longitudinal axis direction of the panel and a plurality of neighborhoods 11b intersecting with these main roots 11a, for example, as shown in FIG. A plurality of main roots 11a are welded along the outer periphery of the U-shaped vicinity 11b to form a box. The main rod 11a and the vicinity 11b are also steel bars.

As the reinforcing bar 11 described above can be used in various shapes or in various structures, for example, one of the reinforcing bars 11 formed by welding the main bar 11a and the vicinity 11b in a lattice form, as shown in FIG. Similarly, even if one sheet formed by welding the main root 11a and the vicinity 11b in a lattice shape is U-shaped, a spacer is formed between two sheets formed by welding the main root 11a and the neighborhood 11b in a lattice shape. Even if it is a box-shaped thing welded by putting in, or a mesh body such as a lath net (that is, metal lath) can be used.

The U-shaped or two welded wire meshes shown in FIG. 2 were welded in a box shape to form a structure having a spacer, and as shown in FIG. 3, the reinforcing bar holder 16 was engaged with the spacer. 15) in a predetermined position.

Moreover, the following are mentioned as a specific example of the aqueous solution used in the manufacturing method mentioned above. For example, polyoxyethylene sorbitan esters of nonionic bubble stabilizers (e.g., Nippon Nyukazai Co., Ltd. product name: Mighty 150, Mighty V2), melamine resin sulfonate-based For example, Nippon Gosei Rubber Co., Ltd. brand name: dynaflo-G2, a polyisoprene sulfonate (For example, Nippon Gouse rubber Co., Ltd. brand name: dynaflo Z105), ligning Sulfonate-based (for example, Nippon Seishi Co., Ltd. name: Dynamul P), polycarbonate-based (for example, Nippon Kousego Co., Ltd. product name: Dinahro P) Since aqueous solutions of various surfactants, such as cement-based water reducing agents, can slow the viscosity rise of mortar, they can be used in place of water.

In addition to the above aqueous solution, a defoaming agent aqueous solution such as silicone (for example, Gao Co., Ltd. Antifoam E-200) may be used as a defoamer to promote defoaming according to the defoaming effect. Can be.

As another aqueous solution, an aqueous emulsion of a resin such as an acrylic resin (for example, Mortax, manufactured by Asahi Chemical Co., Ltd.) may be used because it promotes defoaming by the foaming effect.

Although various things were illustrated above, the panel of this invention is obtained also when these are used. However, the use of water is inexpensive and most desirable if it does not contain extra components in the neutralization section.

In the above-described manufacturing method, the amount of water or an aqueous solution for slowing the viscosity increase of the mortar poured in the vicinity or the upper part of the reinforcing bar 11 is determined by the mortar 18 (the main root of the main bar 11a located at the top). It is preferable to inject | pour in the range of 0.005 to 0.5 ml per volume of 1 volume of the volume of this main root projection to the surface of this mortar from the mortar surface, and 0.005 to 0.3 ml are especially preferable. If the injection amount of water exceeds 0.5 ml per 1 ml of the mortar 18, on the contrary, rough and large voids may occur on the upper part of the reinforcing bar 11, or the volume decreases and the appearance of the panel may be unsightly seen. Occurs.

And when using aqueous solution etc., what was just adjusted to 1-20 wt% concentration (solid content concentration) may use the said quantity. 32 is a diagram showing an example of the relationship between the foaming rate and time when the mortar using aluminum powder as the blowing agent is injected into the mold. The curve of the foaming rate generally rises rapidly initially and gradually becomes saturated and saturated.

The injection time of the water or the aqueous solution in the present invention is such that the mortar is in a flow state from the time when the foaming of the mortar in the mold is almost completed, that is, the time when it reaches the saturation region from the foaming rate curve (in the example of FIG. 32). It is preferable until it is holding.

The time when the mortar foaming is almost completed varies greatly depending on the particle size, shape, and the like of the aluminum powder as the blowing agent, but it is usually about 5 to 40 minutes after injecting the cortar into the mold. Moreover, although the mortar maintains a fluid state, it changes with mortar composition, but it is about 30 to 70 minutes after injecting mortar into a mold normally.

The time point at which the mortar is almost completed and the period for maintaining the flow state can be obtained simply by experiment once the aluminum powder and mortar composition to be used are determined. And whether or not the flow state is, for example, by inserting a rod-shaped rotating body or a rod-shaped vibrating body in the mortar to move horizontally, it can be determined whether the trajectory immediately disappears.

As described above, the injection timing of water or aqueous solution can be performed from the time when the mortar degassing is almost completed, while the flow state of the mortar is maintained. For example, it can be set as the time when mortar was injected into the mold. In that case, the injection stop time of water or aqueous solution may be made in a short time from the time when the mortar foaming is nearly completed.

The position at which the degassing insert is inserted is most preferably within ± 5 mm with respect to the center of the reinforcement bar. Moreover, as for the insertion depth of the degassing insert to insert, it is more preferable that the front-end | tip reaches 20 mm or less from the center of the main root of a reinforcement bar.

As described above, after injecting water or the like into the mortar 18 and treating the mortar 18, preliminary curing of the mortar 18 is performed for several hours in the mold 15, and after the mortar 18 has passed to some extent, the mortar ( 18) is removed from the mold, and the mortar 18 is cut into a predetermined width (width of the light foam concrete panel) with a piano wire cutter or the like. By curing the panel cut to a predetermined width with an autoclave for several hours, the lightweight foamed concrete panel 10 can be manufactured as shown in (A), (B), and (C) of FIG. 1 according to the present invention. . And the difference of the lower part of the reinforcement core 13 which consists of a neutralization part between (A), (B), (C) of FIG. 1 is the difference of the position of the front end of the injection mechanism which is a degassing insert, and the position of the main root 11a, respectively. It is based on the car of the car and the main quantity of water.

In addition, in order to implement the manufacturing method described later in the first manufacturing method, the upper part of the reinforcing bar 11 when forming a plurality of heavy-weight foamed concrete panel 10 having a reinforcing bar 11 into the mold 15 As a device for removing bubbles, the elevating means (70), the plurality of injection pipes 20 lifted by the elevating means (70) and the moving means (95) for moving the elevating means (70) in the horizontal direction It is preferable to use an air bubble removing device of a mortar for lightweight foamed concrete, in particular, in this device, the elevating means 70 is elevated by the main elevating means 71 and the elevating means 70 It is more preferable that a mortar for light-weight foamed concrete including a plurality of auxiliary lifting means 72 and allowing the injection pipes 20 to be lifted to each of the auxiliary lifting means 72 as a bubble removing device.

Using either of the above manufacturing methods or the above apparatus in this manufacturing method, after injecting the raw material mortar into the mold 15 for forming a lightweight foam concrete panel, the vicinity of the reinforcing bar 11 or Water or the like is injected into the upper portion, and the viscosity of the mortar in the vicinity of the water or the like decreases, or bubbles are broken, and thus bubbles bubbles formed in the upper portion of the reinforcing bar 11 can be released from the upper surface. Water, water, and the like are injected to move the bubbles upward, and a neutralization portion having a high density is continuously formed at a portion from the vicinity of the reinforcing bar 11 to the panel end, and the neutralization part thus formed is provided with a reinforcing core ( 13), it is possible to firmly reinforce the root portion of the lightweight foam concrete panel around it.

In the following, an example of water injection will be described with respect to the manufacturing process and manufacturing principle of the lightweight foamed concrete panel 10 shown in Figs. 1A, 1B, and 3C described above with reference to the drawings.

FIG. 2 is a facility name with a plurality of reinforcing bars arranged in a mold. The facility name with the mechanism (i.e., the degassing insert) inserted, FIG. 5 is a perspective view of the distal end of the injection mechanism (i.e., the degassing insert), (A), (B), (C) of FIG. ) Is an explanatory diagram of a state in which the tip portion of the injection mechanism (that is, the degassing insert) is brought into contact with the main root of the uppermost portion of the reinforcing bar to extract water or the like.

In manufacturing the lightweight foamed concrete panel 10 according to the present invention, as shown in FIG. 2, a plurality of reinforcing bars 11 are arranged in parallel in the mold 15, and as shown in FIG. The reinforcing bar 11 is held in the reinforcing bar retaining frame 17 formed above the mold 15 through the reinforcing bar retaining strip 16.

As described above, after arranging the plurality of reinforcing bars 11 in the mold 15, mortar for lightweight foamed concrete is injected into the mold 15. After injecting the mortar 18 into the mold 15, two injection pipes are provided at the tip of the injection mechanism 21, that is, the degassing insert as shown in Figs. The injection mechanism 21 with 20 is inserted into the mortar 18, and as shown in FIG. 6 (A), (B), (C), the tip of the injection pipe 20 is formed at the uppermost main root ( 11a) is moved horizontally along the main root 11a while injecting water or the like into the mortar 18.

This injection can be performed for each column of the main root 11a or along any column. Moreover, although it can inject into the full length of the mold 15 according to the main root 11q, only the part which exists intermittently, for example, the main root 11a can be injected. In that case, it is preferable that the average cross-sectional width of the reinforcement core 13 is about 5 to 20 times the thickness of the network.

This water content decreases the viscosity of the mortar 18 above the main root 11q, and decreases the degree of the mortar 18 and decreases the passage of the injection mechanism 21 in the vicinity of the uppermost main root 11a. The ingot can remove the air bubble from the trademark surface of the mortar 18, and the degassing of the ingot air bubble prevents the formation of coarse and large voids or small voids in the mortar 18, and FIG. , (B) and (C), the reinforcement core 13 which consists of a high density neutralization part can be formed in a predetermined number of continuous states according to the main root 11a.

In the above example, as shown in (A), (B), and (C) of FIG. 1, the neutralizing portion formed vertically in the mortar 18 above the main root 11a of the uppermost part of the reinforcing bar 11. Although the reinforcement core 13 which consists of these is formed, like the lightweight foam concrete panel 30 shown in FIG. 7, the upper part is vertical, and the lower part is a bifurcated neutralization part toward the main root 11a of the edge part. It is also possible to comprise the reinforcing core 13 which is made in the mortar 18. In this case, as shown in FIG. 8 and FIG. 9, the injection mechanism 34 (namely, degassing insertion) which attached the injection pipe 33 which opened the lower part at the tip of the water supply hose 32 in two ways. Using the sieve), the injection mechanism 34 is inserted into the mortar 18, and as shown in FIG. 9, water is injected into the mortar 18 in close proximity to the main root 11a, and thus, along the main root 11a. By moving, it is possible to make a lightweight foamed concrete panel having a reinforcement core 31 made of a neutralizing portion as shown in FIG.

After the mortar reaches the predetermined height as described above, the injection mechanism 34, which is the degassing insert, is used instead of inserting the degassing insert in the vicinity or the upper portion of the reinforcing bar 11, As shown in FIG. 10 or FIG. 11, after arranging the injection pipe 43 which is a degassing insert in the vicinity or upper part of the reinforcing bar 11, mortar is inject | poured, and after a mortar reaches the predetermined height, water The type of inject | pouring etc. in mortar from this injection pipe 43 can be used. The injection mechanism 43 of this type is shown in FIG. 12, and the injection pipe 43 is formed in a cylindrical shape, and the hole 44 of the outlet, such as water, supplied through the water supply hose 42 is provided with the pipe 43. Many are formed on the upper side. However, the shape of the injection pipe 43 is not limited to a cylindrical shape, and the hole may be formed downward. The injection pipe 43 (that is, the degassing insert) is taken out from the mortar immediately after the predetermined processing is completed. At this time, the mortar still has fluidity, and the gap in which the injection pipe 43 is omitted is filled with the mortar that is stopped, and no gap is generated in the mortar.

In addition, in the above-mentioned 2nd method of manufacturing the lightweight foamed concrete panel of this invention, as shown, for example in FIG. 13, after the mortar 18 is inject | poured into the mold 15, the spreading means 46 is made into a. Water or an aqueous solution for slowing the increase of the mortar viscosity on the mortar surface, and as shown in FIG. 14, after the mortar is foamed to a predetermined height, the tip 49 of the degassing insert 48 is used. Is inserted into or near the interpolation root 11 of the mortar 18, and is a method for producing a lightweight foam concrete panel, characterized in that the horizontal movement. And in FIG. 13, the presence of this layer 47 is typically emphasized in order to show that the layer 47, such as water scattered on the surface of the mortar 18, exists.

In this case, the insertion position of the distal end portion 49 of the degassing insert 48 may be the same position as that of the first method described above, and may be around the main root 11q of the outer upper part of the reinforcing bar 11, Not only the upper part of the main root 11a but a little side may be sufficient as it.

As the degassing insert 48 to be used in this second manufacturing method, any material having a shape of lowering the viscosity of the mortar may be used, and a rod, a rod-shaped rotating body, or a rod-shaped vibrating body can be used. A rod means a round, rectangular, polygonal thin elongated rod, or agitated blades attached thereto, and is sized or thick enough to destroy bubbles generated in the upper part of the reinforcement of the reinforcement installed in the mold. It is also preferable to have irregularities on the surface. As diameter, about 2-15 mm is preferable, and 7-11 mm is especially preferable. The material may be a material that does not deform and withstands the viscosity of the mortar slurry foamed. The rod may be a rod-shaped vibrating body which vibrates by vibrating means as in the third method.

The rod-shaped rotating body is a drill bit rotating body which is a rod-shaped rotating body 51 which has a groove-shaped spiral as shown in FIG. 15 and easily moves gas to the mortar upper surface while having an uneven surface. Screw-like rotating body which is the rod-shaped rotating body 53 with stirring blade 52 as mentioned above is preferable. In addition, for example, an electric motor, an engine, etc. are attached to the edge part of this rotating body as a drive means, and it is preferable to transmit a rotating cloud to the rod-shaped tip through a rotating shaft.

The diameter of the rod-shaped rotating body is preferably about 3 to 15 mm, particularly preferably 7 to 11 mm in diameter. The material can withstand the viscosity of the mortar slurry foamed and does not deform.

The range of the rotation speed of the rod-shaped rotating body is preferably 200 to 2000 rpm, and particularly preferably 500 to 1300 rpm. If the rotational speed of the rod-shaped rotating body is low, the viscosity of the mortar is not sufficiently reduced, and a rough and large bubble remains slightly in the mortar, and if the rotational speed is high, the air from the upper part of the mortar is curled. It remains. The direction of rotation of the rod-shaped rotating body may be either clockwise black or counterclockwise, but it is preferable that the winding effect of the rough and large bubbles is larger.

In addition, the rod-shaped vibrating body may have a shape in which a gas is easily moved to the upper surface of the mortar when vertical or horizontal vibration is performed with respect to the vibration axis, and the structure having a vibration arm attached to the side of the rod-shaped or rod-shaped vibration shaft. desirable. As the shape of this vibrating arm, as long as it is a shape, such as a flat plate, a curved board, a rod, and an abacus egg, as a flat plate, a rectangle, a square, a lozenge, etc. are preferable. In addition, as the vertical vibration of the bar-shaped vibrating body, the vibration direction is perpendicular to the vibration axis, and the amplitude and frequency thereof are within a range in which degassing of coarse and large bubbles from the main root portion is acceptable, and the amplitude is 0.1 to 10.0 mm. Preference is given to hammers, in particular 0.5 to 5.0 mm. The frequency range is preferably 10 times per second to 200 times per second, and particularly preferably 30 times per second to 100 times per second. As a driving method for imparting vertical vibration, for example, a vibrator for imparting vibration to a vibration generating part of a rod-shaped rotating body is incorporated, the vibration generating part is cylindrical, and the vibration generating method is an eccentric layer weight method and a planetary motion method. It is preferable that it is made. 17 shows an example of the vibrating body that performs this vertical vibration. In the figure, the bar-shaped vibrating body 55 having a plurality of vibrating arms 55a on the rod-shaped shaft has a structure in which the vibrator 56 vibrates vertically. In addition, two or more such vibration arms 55a can be provided with a good balance in the radial direction.

In addition, the horizontal vibration of the rod-shaped vibrating body is that the vibration direction is in the longitudinal direction of the vibration transmission shaft, and the amplitude and frequency range are preferably 0.1 mm to 3.0 mm in amplitude and 1 to 50 times per second. Preferably, the amplitude is 0.5 mm to 2.0 mm and the frequency is 10 to 30 times per second. As the vibrating device for performing horizontal vibration, for example, the vibrating cutting portion preferably has a structure in which a vibrator is attached to the other end. 18 shows an example of the vibrating body that performs this horizontal vibration. In the figure, the vibrating arm 57a having a plurality of disk-like shapes in the longitudinal direction is provided in the bar-shaped vibrating body 57 in a radial direction, and has a structure that vibrates horizontally by the vibrator 58.

According to the second aspect of the present invention, after the mortar is injected into the mold and dispersed, it can be injected and used in the mortar as described above, for example, a surfactant such as water or a water reducing agent for cement-based materials. An aqueous solution, an antifoaming agent aqueous solution such as silicone, an aqueous emulsion of a resin such as an acrylic resin, or the like can be used, and the amount thereof can also be used in substantially the same amount as that used when injected into the mortar described above.

Moreover, as a time to spread | disperse on mortar, about 10 minutes are preferable after injecting mortar into a mold, and especially within 5 minutes is preferable. Of course, after the mortar is injected, the above water and the like may be dispersed immediately.

As the insertion time of the degassing insert, when the mortar is foamed and reaches a predetermined height, that is, the mortar reaches approximately twice the volume at the time of injection, and the upper main root is sufficiently covered by the expanded slurry. About 20 minutes to 60 minutes have elapsed after the injection of the slurry into the mold, which is the timing at which it is brought into a state, and a period of semi-cured state is preferable, and particularly preferably about 30 to 40 minutes have elapsed after the injection of the slurry at the present time. .

As described above, after the degassing insert is inserted into a predetermined position of the uppermost main root, for example, just above the uppermost main root, the degassing insert is moved horizontally along the longitudinal direction of the main root. The gas in the bubble mass created immediately above can be discharged upwards to obtain the desired coarse, bubble-free lightweight concrete panel.

The degassing insert may be carried out by attaching one degassing insert to the support piece in accordance with the spacing of the main roots for each column of the freckles. The processing may be completed by only moving the main root fever once.

Next, in the third method described above, after the mortar is injected into the mold 15 and degassed, the rod-shaped rotating body is inserted into the reinforcing bar 11 in the mortar, particularly near or above the main bar 11a, It is a method of horizontal movement, applying a rotational movement, and what can be used as this rod-shaped rotating body is as above-mentioned. Then, in order to inject water or the like into the mortar from the rod-shaped rotating body, for example, as shown in FIG. 19 and FIG. 20, the casting hole 62 is provided at the center of the shaft rod 61 with the stirring blade 60. It can also be set as a structure provided.

As described above, in the third method, when water or the like is not poured into the mortar, a lightweight foamed concrete panel having a reinforcement core having a predetermined structure for the purpose of the present invention is obtained, but the density of the portion of the reinforcement core is increased. Water and the like may be injected in the same manner as in the method.

The injection timing of water or the like and the insertion timing of the rod-shaped rotating body into the mortar may be performed in the same manner as in the first method.

And as shown in FIG. 19 and FIG. 20, although water etc. may be inject | poured from a rod-shaped rotation body, as shown in FIG. 21, with the drill bit type | mold rotating body 51 which is a rod-shaped rotation body, The bar 64 which has the hole 63 which can inject water etc. may be parallel.

In addition, in the fourth method described above, after the mortar is injected into the mold 15 and foamed, the rod-shaped vibrators 55 and 57 are moved to the reinforcing bar 11 in the mortar, in particular, the main root 11a. It is a method of horizontally moving while inserting in the vicinity or upper part, and applying a rotational movement, and it can use it as the rod-shaped vibrators 55 and 57 as mentioned above. The rod-shaped vibrators 55 and 57 can be used to obtain a lightweight foamed concrete panel having a reinforcement core having a predetermined structure, which is desired even if water or the like is not poured into the mortar. What is necessary is just to inject | pour water etc. which are the same as a 1st method to raise a density. The injection timing of the water or the insertion time of the rod-shaped rotating body into the mortar may be performed in the same manner as in the first method.

As in the case of the rod-shaped rotating body, water or the like may be injected from the rod-shaped vibrating body, but together with the rod-shaped vibrating body, a rod-shaped body having a hole into which water or the like can be injected may be used together.

In the following, a device for inserting the degassing insert for removing bubbles in the upper portion of the reinforcing bar into the mortar is mechanically inserted instead of the inserting work by human hands.

The apparatus has an elevating means (70), a plurality of injection pipes (20) elevating by the elevating means (70) and a moving means (95) for horizontally moving the elevating means (70). The elevating means 70 includes a main elevating means 71 and a plurality of auxiliary elevating means 72 which are elevated by the elevating means 70, and the injection pipe 20 is connected to each of the auxiliary elevating means 72. ) Is to be elevated respectively.

According to such an apparatus, the injection pipe 20 can be accurately inserted into the bubble mass in the main root 11a of the upper part of the reinforcement 11 by the elevating means 70, and the reinforcement muscle is made by the injection pipe 20. (11) Since it is horizontally moved by the moving means 95 while pouring into the bubble mass of the upper part, the gas of a bubble mass can be removed efficiently. In addition, if the auxiliary lifting means 95 is formed for each of the injection pipes 20 and can be lifted separately, since the quality of the vicinity 11a of the reinforcing bar 11 is different, the reinforcing bar 11 having different heights is formed into a mold ( Even in the case of mixing in 15), the insertion depth can be changed for each injection pipe 20 so that the bubble lump at the main root of the reinforcing bar 11 can be efficiently removed.

Next, examples of these devices will be described with reference to the drawings. FIG. 22 is a side view of an example of the device, and FIG. 23 is a side view of another device in the operating state of FIG. In addition, in FIG. 22, when the injection pipe 20 mentioned later is in a descending position, FIG. 23 shows when it is in a raise position. 24 is a cross-sectional view of the mold on which reinforcing bars having different lengths are disposed. FIG. 25 is an enlarged view of the auxiliary lifting and adjusting means, FIG. 26 is a structural diagram of the groove cam of the bottle diameter portion of the injection pipe pitch, FIG. 27 is a front view of the apparatus in the state of FIG. 23, and FIG. 28 is a part of FIG. And FIG. 29 is a side view of FIG. 28, and FIG. 30 is a structural description of the upper surface of the driven guide of the reinforcing bar retaining frame, and FIG. 6 (C) shows the injection pipe of the apparatus. The insertion position is shown in an enlarged view. As can also be seen in FIG. 22 and FIG. 23, the elevating means 70 has a main elevating means 71 and an auxiliary elevating means 72 which is elevated by the main elevating means 71. As shown in FIG. The main lifting means 71 has a hydraulic cylinder 75 pinned to and attached to a support frame 74 protruding from the support 73, and a connecting body 76 driven by the hydraulic cylinder 75. This connecting body 76 is guided stably by the guide rail 77 cut in the support body 73, and it can go up and down. The support body 78 is attached to the connecting body 76, and the guide rail 79 is attached to the support body 78.

The auxiliary lifting means 72 has a support 80, a first lifting means 81, and a second lifting means. The support 80 is supported by the guide rail 79 and is attached. The second lifting means 82 is attached to the output driver 83 of the first lifting means 81.

As shown in FIG. 27 and FIG. 28, the 1st lifting means 81 and the 2nd lifting means 82 are provided in plural in pair form, and are respectively supported by each support body 80 shown in FIG. have. And as shown in FIG. 25 which is an enlarged view of the auxiliary lifting means 72 and the adjustment means 84, the guide rail 79 is provided so that the some support body 80 may laterally move with respect to the support body 78, and have. The second lifting means 82 may use a cylinder whose stroke of the output drive shaft is relatively short and can operate independently of the first lifting means 81.

As shown in FIG. 25 and FIG. 26, the adjustment means 84 has the roller 85 and the groove | channel cam 86 provided in the 1st lifting means 81, respectively. The roller 85 is attached to and fixed to the support 80, and is inserted into the groove 86a of the groove cam 86. An output portion of the cylinder 87 (detailed later) and a guide rail 88 are attached to the groove cam 86. The support frame 89 is attached to the guide rail 88, and the cylinder 90 is attached to the support frame 89. The support body 78 is fixed to the output part of this cylinder 90.

The pitch setting of the groove cam 86 is performed as follows. First, as the cylinder 90 moves up and down on the rail 91, the support frame 89 moves up and down, and the groove cam 86 moves up and down. The groove cam 86 is processed with an elongate groove bent in a flat plate, and the roller 85 corresponding to the first lifting means 81 moves along each groove 86a. In this way, the cylinder 90 moves up and down to select the position of the roller 85 arbitrarily. And the support body 80 with the roller 85 attached according to the position of the roller 85 transversely moves along the guide rail 79. As shown in FIG. Therefore, each interval of each first lifting means 81 having the second lifting means 82 is set. That is, as shown in Fig. 26A, when the position C of the groove cam 86 is selected, the? Is set to the pitch of. As shown in Fig. 26 (b), when the position (b) is selected, the interval between the first elevating means 81 is A B C... Is set to the pitch of. The pitch between the first lifting means 81 is changed by turning the groove cam 86 up and down with respect to the roller 85 in this way, and the injection pipe 20 is changed so as to suit the pitch of the main root 11a. do. The rails described above are all connected by linear motion bearings.

As described above, since there are a plurality of second lifting means 82, a plurality of injection pipes 20 are installed accordingly, and each injection pipe 20 is guided to the lifting guide 92, so that the second lifting means ( It was detachably attached to the output drive part of 82). The injection pipe 20 may be a plate or rod, but generally, the rod is preferably used. The rod-shaped body may be a main body or a plate rod. The thickness of the plate-shaped body or the main body and the diameter of the round bar are preferably 3 to 8 mm.

Many small holes are formed in the injection pipe 20. The diameter of the small pores is preferably in the range of 0.1 to 2 mm, and it is preferable that small holes having a length of 100 to 200 mm are formed from the tip.

The injection pipe 20 is connected to the liquid feeding plate 93, and by opening the automatic liquid flow control valve 94, a predetermined amount of water or an aqueous solution for slowing the viscosity increase of the mortar can be ejected from the small holes of the injection pipe 20. Can be. The liquid feeding plate 93 is connected to, for example, a constant flow pump so as to feed liquid.

As shown in FIG. 23, the moving means 95 is a rack engaged with a pinion gear 98 and a pinion gear 98 coupled to a drive source 97 such as a transmission-mounted motor provided on the movable body 96, and an output shaft thereof. It has a gear 99. As shown in FIG. 27, the rack gear 99 is horizontally moved along the mount 100 by the rail 101 of the upper lower side of the mount 100. As shown in FIG. And the lifting means 70 was provided in the support body 102 attached to the moving body 96, as shown in FIG. 22 or FIG.

Next, the follower 103 of the reinforcing bar holding frame 17 for positioning the injection pipe 20 in the upper part of the reinforcing bar will be described. In FIGS. 27-29, the mount 105 of the driven device 103 of the reinforcing bar support frame 17 is supported by the guide rail 104 provided in the support body 102, and is provided. This mount 105 is connected to the home cam 86 via the connecting body 106. The mount 105 is provided with a cylinder 107 and a guide rail 108. The movable mount 109 is supported on the output shaft of the cylinder 107, and the guide roller 110 is axially supported at the tip thereof. In FIG. 30, a plurality of guide rollers 110 axially supported by the movable stand 109 are lined up in a row. As for the guide roller 110, the one end part 11 of the reinforcing bar holding frame 17 is lined up in a line. The guide roller 110 is pushed against one end 111 of the reinforcing bar holding frame 17.

Next, operation conditions of the bubble removing apparatus described above will be described. First, as shown in FIG. 22, the direction of the arrow D is directed toward the reinforcing bar 11 in the mortar 18 disposed in the mold 15 by operating the hydraulic cylinder 75 from the state of FIG. Descends. Next, when the first elevating means 81 is operated and the length of the vicinity 11b is different, for example, as shown in FIG. 24, the main root 11a of the outer portion of the reinforcing bar 11 having the longest vicinity 11b is the longest. Each tip of the plurality of injection pipes 20 is independently lowered in the direction of the arrow C to the immediate vicinity of the above. Next, the second lifting means 82 is operated to move the plurality of injection pipes 20 in the direction of the arrow B to the immediate vicinity of the uppermost major root 11a at the position corresponding to the length of the vicinity 11b, respectively. Descend. In this state, as shown in FIG. 22, the line unit value of the injection pipe 20 is as shown in FIG. The gap B between the center of the main rod 11a and the distal end position of the injection pipe 20 shown in FIG. 6C may be mechanically defined in advance.

In the state shown in FIG. 22, the automatic liquid amount regulating valve 94 is opened to start pouring. At the same time, the moving means 95 moves the lifting means 70 horizontally by the moving means 95 between the reinforcing bar retainers 17 in the main length direction, that is, in the direction of the arrow E shown in FIG. Next, the automatic liquid amount regulating valve 94 is closed to stop the pouring.

Next, by raising the output part of the second lifting means 82, the plurality of injection pipes 20 attached to the output part is raised in the direction of the arrow B, and at the same time, the output of the first lifting means 81 is increased. By raising the drive part 83, the 2nd lifting means 82 attached to the output drive part 83 is raised in the direction of the arrow C. As shown in FIG. Next, by raising the hydraulic cylinder 75, the connecting body 76 driven by the hydraulic cylinder 75 is raised, and the auxiliary lifting means 72 or the like connected to the connecting body 76 in the direction of the arrow D. To the state of FIG. 23. In addition, the lifting means (70) horizontally moves the lifting means (70) in the direction of the arrow (E) to the position passed through the reinforcing bar retaining frame (17).

By repeating the above-described operation, as shown by arrow A in FIG. 22, the lowering of the injection pipe 20 and injecting the upper portion of the main root 11a into which the mortar slurry 18 is inserted is carried out horizontally and ascending. Repeat.

And when the reinforcing bar 11 with the same length of the vicinity 11b is arrange | positioned in the mold 15, operation can be made simpler. That is, the hydraulic cylinder 75 is operated to ascend in the direction of the arrow D, and the lifting means 70 is horizontally moved to the desired position in the direction of the arrow E by the moving means 95. Next, the hydraulic cylinder 75 is operated to lower in the direction of the arrow D. FIG. At this time, the tip of the injection pipe 20 is set in advance so that the tip of the injection pipe 20 can be lowered to a desired position without the operation of the second lifting means 82. By operating the hydraulic cylinder 75 as described above, the tip of the injection pipe 20 is lowered to a desired position and horizontally moved while pouring. As shown by arrow A in FIG. 22, the hydraulic cylinder 75 and Bubbles are removed by repeating the operation of the moving means 95.

Then, about half of the plurality of injection pipes 20 are set to be operated at the time of granulation, travel, and ascending of arrow A while moving in the right direction of arrow E shown in FIG. 22, for example. The control may be performed to operate during the movement of the arrow Ed in the left direction.

Next, the operation of positioning the injection pipe 20 will be described. As shown in FIG. 23 and FIG. 29, the movable mount 109 which is an output part of the cylinder 107 by the cylinder 107 and the guide rail 108 provided in the mount 105, and the guide roller 110 of the front-end | tip are shown. Is supposed to ascend. In addition, the guide roller 110 is provided in the edge part 111. As shown in FIG.

The lifting means 70 is lowered, the guide roller 110 is lowered, and the device is moved horizontally so that the guide roller 110 is brought into contact with the mold 15 so as to contact the injection pipe 20 with respect to the main root 11a. Positioning is performed. That is, the cylinder 107 is lowered, the guide roller 110 lowers the reinforcing bar holding to the position of 17, and the groove cam 86 is guided by the cylinder 87 fixed to the support frame 89. The follower 103 is moved above the 104 in the direction of the arrow. As a result, the guide roller 110 is pushed against the reinforcing bar retaining frame 17, and the injection arrow 20 operates the main root 11a according to the set position of the groove cam 86 to raise the driven device 103. After raising the elevating means 70, the bubble removing apparatus is evicted at a predetermined position.

Moreover, since the size and width of the reinforcing bar 11 arrange | positioned in the mold 15 may be various, it is necessary to change it according to the position of the main root 11a of the reinforcing bar 11 which uses the arrangement pitch of the injection pipe 20. . In this case, as mentioned above, by operating the cylinder 90 shown in FIG. 25 and adjusting the height position of the roller 85 in the groove 86a of the groove cam 86, the 2nd which has the injection pipe 20 is provided. It is possible to adjust to the mutual interval of the lifting means 82, so that the insertion position of the injection pipe 20 is always at the top of the main root (11a).

As shown in FIG. 30, the part of the guide roller 110 can move to the direction of arrow (A), (B) according to the edge part 111 of the reinforcing bar holding frame 17. In FIG. , I show a step of the end 111 of the reinforcing bar retaining frame 17, but the guide roller 110 moves along the end 111 and moves in the horizontal direction in compliance with the step.

Incidentally, in the example shown in the drawings, a cylinder is used for the lifting means, but for example, may be electric. The bubble removing device can be program controlled by a microcomputer, a sequencer, or the like. In this case, by inserting the type or size of the reinforcing bar can be automatically changed the insertion depth or pitch of the injection pipe 20, it is possible to automate the entire manufacturing process of the lightweight foam concrete panel.

In the example of the apparatus shown in detail above, although the auxiliary elevator grenade 72 is equipped with the 1st lifting means 81 with the adjustment grenade 84, etc., when the spacing of the reinforcing bar 11 is always constant, The second lifting means 82 may be provided in the lifting means 72.

According to the bubble removing apparatus described above, the injection pipe 20 is inserted into the cylinder in order to insert the injection pipe 20 into the slurry 18 or to horizontally move in the longitudinal direction of the mold 15 after insertion. ), The horizontal movement is performed by a motor, and the apparatus for repeating the operation of lowering, horizontally moving, and raising the injection pipe 20 is used. Therefore, many injection pipes ( 20) can be moved quickly while pouring, and coarse and large bubbles can be efficiently removed.

In addition, since the auxiliary lifting means 72 can be lifted separately for each injection pipe 20, even if there is a reinforcing bar 11 having a different length of the vicinity 11b in the mold 15, the angle reinforcing bar 11 The injection pipe 20 can be precisely inserted into the bubble lump generated near the upper circumference 11a of the upper circumference 11a, and issued near the upper rim 11a of each reinforcement 11, which is the intended purpose. It is possible to make a lightweight foam concrete panel having a bubble reinforcement, removing rough and large bubbles in the panel, and having a reinforcing core 13 as a target.

Moreover, in the case of using the apparatus provided with the adjustment means 84, even if the space | interval between the main bars 11a of the reinforcing bar 11 differs, according to the mutual space | interval of the reinforcing bar 11 arrange | positioned in the mold 15, The injection pipe 20 can be lowered in the position of the main root 11a.

The lightweight foamed concrete panel according to the present invention is, as described in detail above, from the main root 11a of the uppermost part of the reinforced foam 11 inside the lightweight foamed concrete panels 10 and 30 reinforced with the reinforced bars 11. Since the reinforcement cores 13 and 31 which consist of a neutralization part are formed in the outer periphery root part 12 of a panel toward the outer periphery, a large space | gap cannot be confirmed at the outer periphery root part 12 of this panel, and at the same time The outer circumferential root portion 12 of the end can be reinforced.

In addition, according to the manufacturing method of the present invention, it is possible to manufacture a lightweight foam concrete panel having the above configuration, by using the bubble removing device of the present invention, it is possible to move a large number of injection pipes at the same time quickly, and to the human hand No movement of the injection pipe is required.

(Example 1)

The composition of the mortar (18) for light foam concrete panels is 74 parts by weight of water to 100 parts by weight of the mixture consisting of 27% by weight of cement, 6.2% by weight of quicklime, 38% by weight of silica, 27% by weight of crushed powder of light foamed concrete. 0.07 parts by weight of the metal aluminum powdery substance was added and mixed. As a result of experimenting with the used aluminum powder and mortar composition, after injection into the mortar mold, the time when the mortar foaming was almost completed was about 20 minutes, and the period during which mortar maintained fluidity was about 40 minutes.

Two mortar slurries were welded in a lattice form using a plurality of box-shaped reinforcement bars (2-5 mm in diameter as main bars and neighboring bars) at a predetermined position, with a spacer inserted therebetween, The injection pipe 20 of the injection mechanism 21 shown in FIG. 5 (of 125 mm in length through which a large number of small pores) was injected into the mold 15 placed therein and after 35 minutes from the injection of the mortar slurry. By using the number of reinforcing bars 11, each injection pipe 20 is inserted into the upper part of the main root 11a in the mortar 18, as shown in Figs. Under the condition that 0.28 ml of water is pumped per 1 ml of the mortar 18 located above the one main root 11a, the water is injected horizontally along the main root 11a, and the injection mechanism 21 is moved. Note along all the main roots 11a, except from the mortar (18) The manual work was finished. The time from the start of the first douche to the last douche was about 20 seconds. The injection mechanism 21 was removed from the mold 15 and preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 is removed from the mold 15 and cut into pieces of predetermined panel size (that is, one box-shaped reinforcing bar 11 is arranged on each panel to form a panel) with a piano wire cutter. Thereafter, autoclave curing was performed at 180 ° C. for 4 hours to obtain a lightweight foamed concrete panel 10 having a thickness of 100 mm and a length of 2000 mm of 600 mm in width.

When the obtained lightweight foamed concrete panel 10 was cut and observed in the vicinity of the uppermost root 11a of the uppermost part, as shown in FIG. ), And at the same time, rough and large voids and many small voids could hardly be confirmed in this vicinity. In addition, the reinforcement core 13 which consists of a neutralization part was the same composition as the lightweight foamed concrete substrate part 14 except the difference of the amount of existence of foam etc ..

Next, the compressive strength and dry weight of the reinforcing core 13 and the substrate portion 14 of the neutralized portion of the lightweight foamed concrete panel 10 were measured. As a result, the compressive strength of the substrate portion 14 was 45.0 kgf / cm 2, and the specific gravity was 0.498. On the other hand, the compressive strength of the reinforcement core 13 of the neutralization part is 105.8 kgf / cm <2>, and the dry weight is 0.780.

In addition, as a result of measuring the edge strength between the concrete panel with the lightweight foam having the reinforcement core 13 obtained in Example 1 and the conventional lightweight foamed concrete panel manufactured without carrying out the treatment of the present invention, the conventional foam was 3.90 kgf. For the / cm 2, in the lightweight foam concrete panel having the reinforcement core 13 of the present invention, the high value was 4.93 kgf / cm 2.

The compressive strength was measured by cutting out a test provider having a length of 20 mm, a width of 10 mm, and a length of 30 mm, respectively, from the reinforcing core 13 and the substrate part 14 formed of the neutralizing part near the uppermost root 11a. After adjusting to air condition, the load was measured in the compression direction.

In addition, the edge strength indicates the peeling strength between the panel substrate portion 14 and the uppermost root 11a of the uppermost portion, and the value is lowered in the lightweight foamed concrete panel having a continuous void in the vicinity of the reinforcing bar. The actual measuring method is a 100 mm x 100 mm metal fitting on a cross section having a reinforcement core 13, and the uppermost main root 11a is formed from the cross section of the lightweight foam concrete panel on both sides at the positions of both sides of the bracket. After cutting to the upper end, wind the bracket upward and measure the load when the edge of the lightweight foam concrete panel with bracket is peeled off from the uppermost root 11a, and the load at that time is the area of the bracket attachment part. The value divided by was taken as the edge strength. On the surface of the metal fittings, a ring for tensile test is attached.

(Example 2)

Using the same mortar slurry as in Example 1, injection was carried out in the mold 15 in which a plurality of reinforcing rods 11 were arranged in the same manner as in Example 1, and 25 minutes after the mortar slurry was injected, the same injection mechanism as in Example 1 was used. (21) was used and horizontal movement was carried out while pouring 0.20 ml of water per 1 ml of the mortar 18 located in the upper part of the upper one main root 11a. The duration of water treatment from the start of the water to the end of the water was about 20 seconds. After the main water treatment, the injection mechanism 21 was removed from the mold 18 and preliminarily cured for about 3 hours. Next, the hardened mortar 18 is removed from the mold 15 and cut into a predetermined size of a panel (the size of a panel-shaped reinforcing bar 11 arranged on each one panel to form a panel) with a piano wire cutter. After that, autoclave curing was performed at 180 ° C. for 4 hours, and a lightweight foamed concrete panel 10 was worn.

When the obtained lightweight foamed concrete panel 10 was cut and the vicinity of the uppermost main root 11a was observed, as shown in FIG. 1B, a reinforcing core 13 made of continuous neutralizing portions was formed. At the same time, rough and large voids were reduced. In addition, the reinforcement core 13 which consists of this neutralization part was the same structure as the lightweight foamed concrete substrate part 14 except the difference of the quantity of abundances, such as foam.

Next, the compressive strength and dry weight of the reinforcement core 13 and the substrate portion 14 of the heavy arc of the lightweight foamed concrete panel 10 were measured. As a result, the compressive strength of the substrate portion 14 was 45.0 kgf / cm 2 and the dry weight ratio was 0.505. On the other hand, the compressive strength of the reinforcement core 13 of the neutralization part is 76, 5 kgf / cm <2>, and the dry weight ratio is 0.684.

In addition, a light foamed concrete panel having a reinforcement core 13 having an average cross section width of 6 mm obtained in Example 2 and a conventional lightweight foamed concrete panel manufactured without carrying out the treatment of the present invention and the edge strength were measured. In the light weight foam concrete panel having the reinforcement core 13 of the present invention, the value was 3.90 kgf / cm 2, and was high as 4.80 kgf / cm 2.

(Example 3)

Using the same mortar slurry as in Example 1, injection was carried out in the mold 15 in which a plurality of reinforcing bars 11 were arranged in the same manner as in Example 1, and after 30 minutes from the injection of the mortar slurry, injection was performed as in Example 1. The mortar 18 which uses the mechanism 21, inserts the line unit value of this injection mechanism 21 a little earlier than in the case of Example 1 or Example 2, and is located in the upper part of one main root 11a of the outer wound part. 0.20 ml of water per 1 ml of volume was transferred horizontally. The water treatment time from the start of the water to the end of the water was about 20 seconds. After the main water treatment, the injection mechanism 21 was removed from the mold 15 and preliminarily cured for about 3 hours. Next, the hardened mortar 18 is removed from the mold 15 and cut into a predetermined size of a panel (the size of a panel-shaped reinforcing bar 11 arranged on each one panel to form a panel) with a piano wire cutter. After that, autoclave curing was performed at 180 ° C. for 4 hours to obtain a lightweight foamed concrete panel 10.

When the obtained lightweight foamed concrete panel 10 was cut and the vicinity of the uppermost main root 11a was observed, as shown in FIG. 1C, a reinforcement core 13 having an average cross-sectional width of 6 mm consisting of continuous neutralizing portions was shown. Was formed, and at the same time, rough and large voids were reduced. In addition, the reinforcement core 13 which consists of this neutralization part was the same composition as the lightweight foamed concrete substrate part 14 except the difference of the quantity of abundances, such as foam.

Next, the compressive strength and dry weight of the reinforcing core 13 and the substrate portion 14 of the neutralized portion of the lightweight foamed concrete panel 10 were measured. As a result, the compressive strength of the substrate portion 14 was 44.8 kgf / cm 2, and the dry weight ratio was 0.51. On the other hand, the compressive strength of the reinforcement core 13 of the neutralization part is 75 and 3 kgf / cm <2>, and the dry weight ratio is 0.681.

In addition, when the edge strength between the lightweight foamed concrete panel having the reinforcement core 13 obtained in Example 3 and the conventional lightweight foamed concrete panel manufactured without performing the treatment of the present invention was measured, the conventional product was 3.90kgf / In the case of cm 2, the lightweight foamed concrete panel having the reinforcement core 13 of the present invention showed a high value of 4.75 kgf / cm 2.

Example 4

Using the same mortar slurry as Example 1, it injected into the mold 15 in which the special reinforcing bar was arrange | positioned similarly to Example 1, and after 30 minutes after the mortar slurry injection, it replaces the injection mechanism 21 of Example 1 Using the injection mechanism 34 shown in FIG. 8, the water injection position of the injection pipe 33 of this injection mechanism 34 is inserted as shown in FIG. 9, and the one main root 11a of the outer wound part is shown. 0.30 ml of water per 1 ml of the mortar 18 located at the top of the tank was horizontally transported. After completion of the horizontal movement, the mold was removed from the mold for the injection mechanism 34. The water treatment time from the start of the water to the end of the water was about 20 seconds. Thereafter, preliminary curing was performed for about 3 hours. Next, the mortar 18 that has passed through is removed from the mold 15 and cut into a predetermined panel size (one size of box-shaped reinforcing bar 11 is arranged on each panel with a piano wire cutter). After that, autoclaving was carried out for 4 hours at 180 ° C., and the lightweight foamed concrete panel 10 was worn.

As a result of cutting the obtained lightweight foamed concrete panel 10 and observing the vicinity of the uppermost main root 11a, as shown in FIG. 7, the reinforcement core 13 having an average cross-sectional width of 6 mm consisting of continuous neutralizing portions was uniformly formed. Formed, and at the same time, the coarse and large voids were reduced. In addition, the reinforcement core 13 which consists of this neutralization part was the same composition as the lightweight foamed concrete substrate part 14 except the difference of the quantity of abundance, such as foam.

Next, the compressive strength and dry weight of the reinforcing core 13 and the substrate portion 14 of the neutralized portion of the lightweight foamed concrete panel 10 were measured. As a result, the compressive strength of the substrate portion 14 was 45.1 kgf / cm 2, and the dry weight was 0.503. On the other hand, the compressive strength of the reinforcement core 31 of the neutralization part is 95 and 8 kgf / cm <2>, and the dry weight is 0.689.

In addition, when the edge strength between the tendency bubble concrete panel having the reinforcement core 31 obtained in Example 4 and the conventional lightweight bubble concrete panel manufactured without the treatment of the present invention was measured, the conventional material was 3.90 kgf / In the case of cm 2, in the tendency bubble concrete panel having the reinforcement core 31 of the present invention, a high value of 4.91 kgf / cm 2 was shown.

(Example 5)

The mortar 18 for lightweight foamed concrete is composed of a ratio of 27.0 weight of cement, 62. weight of lime and lime, 41.0 weight of silica powder, 1.8 weight of gypsum and 24.0 weight of crushed powder of light foam concrete. A mixture of 100 parts by weight of the mixture, 73.0 parts by weight of water, and 0.07 parts by weight of the metal aluminum powdery substance was used. As the injection pipe 43, a one having a length of 500 mm through which many small holes 44 as shown in FIG. 12 were drilled was used. This pipe 43 was arrange | positioned along the uppermost main root 11a as shown to FIG. 10 and FIG.

Thereafter, the mixed mortar slurry 18 of the above adjustment is injected into the mold 15, and after 7 minutes have elapsed since the end of the mortar slurry injection, 1 ml of the mortar volume located at one upper part of the uppermost root 11a in the mold. 0.28 ml of water was sent from the water feed tube and injected into the mortar 18 from the pores 44 of the pipe 43. This water injection took 23 minutes. When the injection of water was completed, the pipe was removed from the mold 15 and preliminary running for about 3 hours was performed. Subsequently, the elapsed mortar was removed from the mold, and the predetermined size of the panel was cut using a piano wire cutter, followed by autoclave curing at 180 ° C. for 4 hours to wear a light foamed concrete panel 10.

The obtained lightweight foam concrete panel had the same structure as that of the above-described embodiment, and rough and large bubbles were hardly confirmed on the upper part of the main root.

(Example 6)

50% by weight of silica, 35% by weight of Portland cement, 10% by weight of quicklime, and 5% by weight of gypsum were mixed with 100 parts by weight of 70 parts by weight of water and 0.06 parts by weight of aluminum to form a mortar slurry.

This mortar slurry was poured into a mold having a width of 600 mm, a length of 600 mm, and a height of 600 mm, and after 3 minutes, 1.5 parts by weight of a 1.1% aqueous solution of sodium polyalkyl sulfonate (trade name: Mighty 150, manufactured by Gao Co., Ltd.). (Corresponding to 0.015 ml of an aqueous solution per 1 ml of mortar located at one upper part of the uppermost root 11a). When 30 minutes have elapsed after the injection into the mortar mold, the rod diffractive bodies 51 and 53 of FIGS. 15 and 16 are linearly moved in parallel to the main root, and the bubble mass at the upper part of the main root is removed, and the mortar maintains fluidity. It was finished until after 34 minutes. After the said mortar reached predetermined hardness, it cut | disconnected with the piano wire and autoclave hardened.

Rough and large bubble exposure could not be blown on the obtained ALC surface, and it was preferable. This ALC was cut | disconnected similarly to Example 1, and when the cut surface was observed, the coarse and big bubble was not produced also inside.

(Example 7)

The same mortar slurry 18 as in Example 5 was injected into the placed mold 15 of the plurality of reinforcing bars 11, and 30 minutes after the mortar slurry was injected, the injection mechanism shown in FIG. The injection pipe 20 (the thing of 125 mm in length through which many small holes) of 21 is used for the number of reinforcing bars 11, and each injection pipe 20 is shown in FIG. 4 and FIG. It is inserted in the upper part of the main root 11a in the mortar 18, and 10 weight% (concentration of solid content) POE sorbitan sler (brand name: Nippon New Kazai Co. Newcol-82) aqueous solution is the uppermost part of the mold Aqueous solution is fed by the water supply tube 19 under 0.24 ml of condition per 1 ml of mortar 18 located on the top of one main root 11a, and the aqueous root is injected into the mortar 18 from the pores of the pipe. Move horizontally in accordance with (11a), remove the injection mechanism (21) from the mortar (18), and An injection operation according to the main bars (11a) was terminated. The time from the start of the first injection to the completion of the last injection was about 20 seconds. The injection mechanism 21 was removed from the mold 15 and separated, and preliminary curing for about 3 hours was performed. Subsequently, the hardened mortar 18 is removed from the mold 15, and the piano wire cutter is cut into a predetermined panel size (the size of the panel having one box-shaped reinforcing bar 11 arranged on each panel). After that, autoclave curing was performed at 180 ° C. for 4 hours to obtain a lightweight foamed concrete panel having a thickness of 100 mm, a width of 600 mm, and a length of 2000 mm.

The obtained lightweight foam concrete panel had the same structure as that of the above-described embodiment, and rough and large bubbles were hardly confirmed on the upper part of the main root.

(Example 8)

In the mold 15 in which a plurality of reinforcing rods 11 are arranged at equal intervals, 35% by weight of silica grinding, 30% by weight of topland cement, 8% by weight of quicklime, 2% by weight of gypsum, 25% by weight of light foam concrete crushed powder A mortar slurry for lightweight foamed concrete panels comprising 70% by weight of water and 0.06 parts by weight of metal aluminum powder was added to 100 parts by weight of the mixture, and 2.5 parts by weight of water was added to the mortar surface in one minute. (Approximately 0.025 ml of water per 1 ml of the mortar foamed in the mold). When 30 minutes have elapsed after the mortar is injected into the mold, the rod-shaped rotary body 51 shown in FIG. 15 is inserted directly above the main root 11a, moved straight in parallel to the main root, and the bubble lump at the upper part of the main root is removed. The process was terminated until 33 minutes after the mortar maintained fluidity. The rod-shaped rotary body 51 was removed from the mold 15 and separated, and preliminary curing was performed for about 3 hours. Subsequently, the hardened mortar 18 was removed from the mold 15, and the predetermined size of the panel was cut with a piano wire cutter, followed by autoclave curing to obtain a lightweight foam concrete panel.

The upper cross-sectional side of the obtained lightweight foamed concrete panel was lined with neutralization, and no exposure to the coarse and large bubbles was observed. As a result of cutting and observing as shown in FIG. 1, the neutralized portion was confirmed on the upper part of the main root 11a. And large, large bubbles were not observed.

(Example 9)

In the compact frame 15 having a width of 600 mm, a length of 600 mm, and a height of 600 mm, in which a plurality of reinforcing bars 11 are arranged at equal intervals, 35% by weight of silica grinding material, 30% by weight of portland cement, 8% by weight of quicklime, and gypsum 2 minutes by weight, light weight foam concrete 25% by weight pulverized powder, 70 parts by weight of water and 0.06 parts by weight of metal aluminum powder are mixed with 100 parts by weight of mortar slurry for lightweight foamed concrete panels. 1.5 parts by weight of water was sprayed on the surface of the mortar (the amount corresponds to 0.01 ml of aqueous solution per 1 ml of the mortar foamed in the mold). When 39 minutes have passed since the mortar was injected into the mold, a simple rod (55) and (57) were inserted directly above the main root (11a), moved straight in parallel to the main root, and the bubble mass at the upper part of the main root was removed, and the mortar The rod-shaped body was removed from the mold 15 until 33 minutes after maintaining the fluidity. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the mortar 18 which passed was removed from the mold 15, the predetermined size of the panel was cut | disconnected with the piano wire cutter, and autoclave hardening was performed and the lightweight foam concrete panel was obtained.

The upper cross-sectional side of the obtained lightweight foamed concrete panel was lined with neutralization, and no exposure to the coarse and large bubbles was observed. As a result of cutting and observing as shown in FIG. 1, the neutralized portion was confirmed on the upper part of the main root 11a. And large, large bubbles were not observed.

(Example 10)

In the small mold 15 having a width of 600 mm, a length of 600 mm, and a height of 600 mm in which a plurality of reinforcing rods 11 are arranged at equal intervals, 45% by weight of silica grinding, 40% by weight of Portland cement, 10% by weight of quicklime and 5% of gypsum. A mortar slurry for lightweight foamed concrete panels, in which 70% by weight of water and 0.06 parts by weight of metal aluminum powder are mixed with 100% by weight of the mixture, and 2.0 parts by weight of water is added to the mortar surface after 4 minutes. (Corresponding to 0.015 ml of aqueous solution per 1 ml of foamed foam). When 30 minutes have passed since the mortar was injected into the mold 15, the rod-shaped vibrators 55 and 57 were inserted directly above the main root 11a, and moved straight in parallel to the main root 11a. The bubble lump was removed, and the rod-shaped vibrators 55 and 57 were removed from the mold 15 until 33 minutes after the mortar maintained fluidity. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 was removed from the mold 15, and the predetermined size of the panel was cut by a piano wire cutter, followed by haute crab curing to obtain a lightweight foam concrete panel.

The upper cross-section side of the obtained lightweight foam concrete panel was lined with a neutralization portion, and exposed to large and large bubbles were not seen, and the cut portion was observed as shown in FIG. 1 and the neutralized portion was placed on the upper part of the main root 11a. A large, large bubble was not observed.

(Example 11)

In the mold 15 in which a plurality of reinforcing rods 11 are arranged at equal intervals, 35% by weight of silica grinding, 30% by weight of Portland cement, 8% by weight of quicklime, 2% by weight of gypsum, and 25% of crushed powder of light foamed concrete The mortar slurry for lightweight foamed concrete panels comprising 70% by weight of water and 0.06 parts by weight of metal aluminum powder was added to 100 parts by weight of 100% by weight. After injection of the mortar into the mold, 25 minutes after the completion of the mortar kicking, the rod-shaped rotor 51 shown in FIG. 15 is inserted directly above the main root 11a, while the rod-shaped body 51 is subjected to rotational movement. The linear movement was performed parallel to the main root, the bubble lump at the upper part of the main root was removed, and the rod-shaped rotor 51 was removed from the mold 15 until 35 minutes after the mortar maintained fluidity. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 was removed from the mold 15, cut into a predetermined panel size with a piano wire cutter, and then autoclaved to obtain a lightweight foamed concrete panel.

The upper cross-sectional side of the obtained lightweight foamed concrete panel was lined with neutralization, and no exposure to the coarse and large bubbles was observed. As a result of cutting and observing as shown in FIG. 1, the neutralized portion was confirmed on the upper part of the main root 11a. And large, large bubbles were not observed.

(Example 12)

In the compact frame 15 having a width of 600 mm, a length of 600 mm, and a height of 600 mm in which a plurality of reinforcing bars 11 are arranged at equal intervals, 40% by weight of silica grinding, 25% by weight of Portland cement, 8% by weight of quicklime, and gypsum 2 A mortar slurry for lightweight foamed concrete panels, in which 70% by weight of water and 0.06 parts by weight of metal aluminum powder were mixed with 100% by weight of a mixture of 26% by weight of crushed powder of lightweight foamed concrete and 100% by weight, was injected. When 35 minutes have passed since the mortar was injected into the mold 15, a rod-shaped rotating body 51 and a simple rod-shaped injection pipe 64 were inserted as shown in FIG. 21, and inserted directly above the main root 11a. And, while immediately injecting water from the injection pipe 64, while applying a rotational motion to the rod-shaped rotating body 51 to move in a straight line parallel to the main root, remove the bubble mass of the upper part of the main root, the mortar is maintaining fluidity After 39 minutes, the rod-shaped rotor 51 and the injection pipe 64 were pulled away from the mold 15. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 was removed from the mold 15, cut into a predetermined panel size with a piano wire cutter, and then autoclaved to obtain a lightweight foamed concrete panel.

Then, the amount of water to be fed from the injection pipe 64 was 2.0 parts by weight (this amount corresponds to an aqueous solution of 0.02 ml per optimal ml of mortar located at one upper portion of the uppermost root 11a in the mold). The upper cross-section side of the obtained lightweight foamed concrete panel was lined with neutralization, and the exposure of the coarse and large bubbles could not be seen, and when cut and observed as shown in FIG. 1, the neutralized portion was confirmed on the upper part of the main root 11a. And large, large bubbles were not observed.

Then, 1 part by weight of a 2.0% aqueous solution of sodium polyalkylsulfonic acid (trade name: manufactured by Mighty 150 Gao Co., Ltd.) from the main pipe instead of water was used. 1.2 ml of 1.5 parts by weight aqueous solution of polyisoprene sulfonic acid (trade name: Z-105 Nippon Gosei Rubber Co., Ltd.) is used (corresponding to 0.0 l ml of aqueous solution per 1 ml). The same result was obtained also when a 0.02 ml aqueous solution per volume of 1 ml of mortar located in one upper part of the main root 11a was used.

(Example 13)

In the mold 15 in which a plurality of reinforcing bars 11 are arranged at equal intervals, 30% by weight of silica grinding, 30% by weight of Portland cement, 6% by weight of quicklime, 5% by weight of gypsum, and 29% of lightly pulverized powder of concrete The mortar slurry for lightweight foamed concrete panels comprising 70% by weight of water and 0.06 parts by weight of metallic aluminum powder was added to 100 parts by weight of the mixture of%. After 35 minutes of injection, the rod-shaped rotary body with the stirring blade 60 shown in FIG. 19 is inserted directly above the main root 11a, d, and the rotary motion of the cast hole 62 is applied to the rod-shaped rotary body. 1 part by weight of a 1.8% aqueous solution of sodium polyalkylsulfonate (trade name: manufactured by Mighty 150 Gao Co., Ltd.) from the tip (this amount is 0.01 ml per volume of 1 ml of mortar located at the top of one of the uppermost roots 11a in the mold). The rod-shaped rotary body was removed from the mold 15 and removed from the mold 15 until 40 minutes after the bubble mass at the upper part of the main root was removed, and the bubble mass at the upper part of the main root was removed. Then, about 40 minutes later, the rod-shaped rotating body was removed from the mold 15 and moved away. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 was removed from the mold 15, cut into a predetermined panel size with a piano wire cutter, and then autoclaved to obtain a lightweight foamed concrete panel.

The upper cross-section side of the obtained lightweight foamed concrete panel was lined with neutralization, and the exposure of the coarse and large bubbles could not be seen, and it was determined by cutting as shown in FIG. 1 that the neutralized portion was found on the upper part of the main root 11a. No large bubbles were observed.

(Example 14)

In the mold 15 having a plurality of reinforcing bars 11 arranged at equal intervals, a mixture of 45% by weight of silica grindstone, 45% by weight of Portland cement, 5% by weight of quicklime and 5% by weight of gypsum was used based on 100 parts by weight. Mortar slurry for lightweight foamed concrete panels comprising 70 parts by weight of water and 0.06 parts by weight of metallic aluminum powder was injected. 30 minutes after the injection, the rod-shaped vibrating body 57 shown in FIG. 18 is inserted directly above the main root 11a, and linearly moved parallel to the main root while applying horizontal vibration to the rod-shaped vibrating body. The bubble lump was removed, and the rod-shaped rotor 57 was removed from the mold 15 until 33 minutes after the mortar maintained fluidity. Thereafter, preliminary curing was performed for about 3 hours. Subsequently, the elapsed mortar 18 was removed from the mold 15, cut into a predetermined panel size with a piano wire cutter, and then autoclaved to obtain a lightweight foamed concrete panel.

The upper cross-sectional side of the obtained lightweight foamed concrete panel was lined with neutralization, and no exposure to the coarse and large bubbles was observed. As a result of cutting and observing as shown in FIG. 1, the neutralized portion was confirmed on the upper part of the main root 11a. And large, large bubbles were not observed.

The same result was obtained when the rod-shaped vibrator 55 of FIG. 17 performing vertical vibration instead of the rod-shaped vibrator 57 shown in FIG.

The lightweight foamed concrete panel according to the present invention has the same appearance as that of a normal lightweight foamed concrete panel from the panel surface, and in its cross section, from the vicinity of the internal reinforcement toward the panel end, than the density of the surrounding lightweight foamed concrete substrate portion. Since the reinforcement core which consists of continuous neutralization part which has a high density is provided, especially the lightweight foam concrete panel with remarkably large intensity | strength of the outer root part can be obtained.

In addition, since there is a normal lightweight foamed concrete substrate portion around the reinforcing core made of the neutralization, only this reinforced core does not fall off from the lightweight foamed concrete panel.

In the conventional lightweight foam concrete panel, in the panel end of the present invention, the reinforcing cores are provided in the panel of the present invention in the vicinity of the reinforcing bars where large and small voids are easily generated due to aggregated bubbles. Extensive effects such as the formation of large and small voids can be prevented.

In addition, according to the manufacturing method of the present invention, it is possible to manufacture a lightweight foam concrete panel having the above configuration, by using the bubble removing device of the present invention, it is possible to move a large number of liquid pipes at the same time quickly, the human hand No movement of the injection pipe by means of

Claims (12)

In the lightweight foamed concrete panel 10 reinforced by arranging the reinforcing bar 11 therein, the density is higher than the density of the surrounding lightweight foamed concrete substrate 14 from the vicinity of the reinforcing bar 11 toward the end of the panel. Lightweight foam concrete panel, characterized in that it comprises a reinforcement core (13) made of a continuous neutralization portion having a. In the manufacturing method of the lightweight foamed concrete panel 10 in which mortar is injected and cured into the mold 15 on which the plurality of reinforcing bars 11 are disposed, after the mortar is injected, water or an aqueous solution for slowing the viscosity increase of the mortar is reinforced. Method for producing a lightweight foam concrete panel, characterized in that the injection into the vicinity or the upper part (11). According to claim 2, after arranging the degassing insert in the vicinity or the upper part of the reinforcing bar 11 in advance, the mortar is injected, and after the mortar reaches a predetermined height, water for slowing the increase of the mortar viscosity or A method for producing a lightweight foam concrete panel, characterized in that the aqueous solution is injected into the mortar from the degassing insert. 3. The method according to claim 2, wherein after the mortar reaches a predetermined height, a degassing insert is inserted into or near the reinforcing bar 11, and water or an aqueous solution for slowing the increase of the mortar's viscosity into the degassing insert. Method for producing a lightweight foam concrete panel, characterized in that the injection into the mortar. 5. The degassing insert according to claim 4, wherein the degassing insert is moved horizontally while water or an aqueous solution is injected into the mortar from the degassing insert to slow the increase of the mortar viscosity. Method for manufacturing lightweight foamed concrete panels. In the manufacturing method of the lightweight foamed concrete panel 10 in which mortar is injected into the mold 15 in which the plurality of reinforcing bars 11 are disposed and passed, water or an aqueous solution for slowing the increase of the mortar viscosity after mortar injection is mortar. After spraying on the surface and foaming the mortar to a predetermined height, a method for producing a lightweight foam concrete panel, characterized by inserting the degassing insert into the vicinity or upper portion of the reinforcing bar 11 in the mortar and horizontally moving. . After the mortar is injected into the mold 15 on which the plurality of reinforcing bars 11 are arranged and foamed, the rod-shaped rotating body is inserted into or near the reinforcing bar 11 in the mortar, and horizontally moved while applying a rotational motion. Method for producing a lightweight foam concrete panel, characterized in that. The water movement for inserting the rod-shaped rotors 51 and 53 and slowing the increase of the mortar viscosity into the mortar from the rod-shaped rotors 51 and 53 while being inserted into the mortar. Method of manufacturing a lightweight foam concrete panel, characterized in that the horizontal movement while applying. Mortar is injected into the mold 15 on which the plurality of rebars 11 are arranged and foamed, and then rod-shaped vibrators 55 and 57 are inserted into or near the reinforcing bar 11 in the mortar, and horizontally. A method of manufacturing a lightweight foam concrete panel, characterized in that the horizontal movement while applying at least one of vibration and vertical vibration. 10. The method according to claim 9, wherein the rod-shaped vibrators 55 and 57 are inserted, and at the same time, water or an aqueous solution for the mortar to slow the viscosity increase is injected into the mortar from the rod-shaped vibrators 55 and 57. A method of manufacturing a lightweight foam concrete panel, characterized in that the horizontal movement while applying at least one of vibration and vertical vibration. In the apparatus for removing bubbles in the upper part of the reinforcing bar 11 when forming a plurality of lightweight foam concrete panel 10 having a reinforcing bar 11 in the mold 15, the elevating means 70 and the elevating means 70 And a plurality of injection pipes (20) which are lifted and lowered by a) and a moving means (95) for moving the lifting means (70) in a horizontal direction. According to claim 11, the elevating means (70) includes a main elevating means (71) and a plurality of auxiliary elevating means (72) to be elevated by the elevating means (70), each of the auxiliary elevating means (72) Injecting pipe 20 in each of the bubble removing device of the mortar for light-weight foam concrete, characterized in that the lifting.