JP2000169262A - Surface processed panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a panel holding a releasing band having texture of natural stone between grooves and having especially excellent designability by forming a releasing band at one or both sides of a groove on the surface of a light- weight cellular concrete panel specifying the distance between the grooves within a specific range. SOLUTION: The distance between grooves is set to 40-600 mm. Since the distance between grooves is set to >=40 mm, the extension of the releasing band to the bottom part of the adjacent groove seldom occurs at a certain probability. A pair of releasing bands 5 having natural stone appearance are oppositely formed from the side face part 3 of two adjacent grooves 2 in bulged state relative to the base part 4 of the two adjacent grooves 2 and are protruded on the surface of the panel at the center part. Accordingly, the natural stone appearance is especially stressed from the viewpoint of design to make full use of the natural stone-like design.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight cellular concrete panel having a processed pattern on its surface.

[0002]

2. Description of the Related Art A lightweight cellular concrete panel is a lightweight, ready-made panel reinforced with reinforcing steel bars and the like, and is known as a large panel having a width of 600 mm and a length of several meters. This lightweight cellular concrete panel is
It has the characteristics of being economical, lightweight, fire-resistant and heat-insulating, and has excellent workability, and is widely used in the building industry as a private house, a house with shops, a building roof, floor, outer wall, partitioning material, etc. .

[0003] However, although lightweight cellular concrete panels are materials having excellent properties as described above, they are generally produced as flat flat panels due to production efficiency. There is a problem that is poor. For example, ordinary lightweight cellular concrete panels are manufactured by cutting a large block into a large number of panels using a piano wire in a semi-plastic state before being hardened by autoclave curing during the manufacturing process. The bubbles on the foam concrete panel surface are crushed by the piano wire and have a relatively flat surface.

[0004] In order to overcome this problem, a method of forming a groove on the surface of a lightweight cellular concrete panel has been proposed. For example, JP-A-58-16
Japanese Patent Application No. 0106 and Japanese Patent Application No. 59-167203 disclose a surface processing technique using a rotary cutting blade. However, those that have been grooved by these technologies, the resulting design is limited to those that are mechanically uniform, and because the shape composed of the surface and the groove is relatively sharp,
Essential problems remain such that the coating material does not easily adhere to the side surface portion of the groove, and if the side surface portion is damaged due to an impact during transportation and construction, the damage mark is conspicuous. In particular, since the material is lightweight cellular concrete with relatively high water absorption, it is necessary to apply a paint finish to prevent rainwater from being absorbed from the surface of the panel. If the coating is not carefully performed, the coating tends to have a thin film thickness, and rainwater is absorbed into the inside of the panel from the side surface of the groove, which may cause a problem such as a decrease in panel strength. Furthermore, since the material is lightweight and lightweight and has the property of being brittle in terms of strength, the side surface of the groove may be easily damaged by impacts during transportation and construction, and to improve the design of lightweight cellular concrete. There was a problem with the technology.

Further, as disclosed in Japanese Patent Application Laid-Open No. 63-25284, there is a technique in which a projection material such as a small steel ball collides with the surface of a lightweight cellular concrete panel using an emperor unit to obtain a concave portion, that is, a groove portion. However, the side surface of the groove becomes sharp and steep, and in order to prevent a thin film from being painted, it is necessary to perform a careful painting treatment, and there is also a problem that it is difficult to avoid damage due to impact during transportation and construction. there were. In addition, there is still an essential problem that the texture of the damaged surface and the surface processed by the small steel ball and the texture of the surface are different, and the damage mark is conspicuous.

[0006] Further, as in JP-A-63-82702 and JP-A-63-82705, even when machining with a small steel ball and machining of a groove with a cutting tool are used together, the side surface of the groove is steep. Inevitably, it is necessary to perform careful painting treatment, it is easily damaged by impact during transportation and construction, and the damaged part is different in texture from the other surface, so that the damage mark is conspicuous The essential problem remains in the above-mentioned JP-A-63-25284.
This is the same as the prior art disclosed in Japanese Patent Application Publication No.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned various problems of the prior art. It also improves the adhesion of the coating material on the side of the groove, making it less likely that the side of the groove will be damaged by impact during transportation and construction. In addition to providing a lightweight lightweight cellular concrete panel with excellent design that has a natural stone-like surface texture, such as cracked stone, rock surface, and stone-grain, it also has a natural stone-like texture formed from grooves. In particular, the peeling band having almost no reach to the bottom part of the adjacent groove part, and the peeling band having a natural stone-like texture is formed in the middle part of the groove part and the groove part in particular, and is formed. And its object is to provide a lightweight cellular concrete panel having excellent Takumi properties.

[0008]

That is, claim 1 of the present invention.
The invention according to the present invention relates to a lightweight cellular concrete panel having grooves on its surface, wherein the distance between the grooves is 40 m.
m and not more than 600 mm, and a peeling band is formed on one or both sides of the groove.

According to the first aspect of the present invention, since the above-described configuration is adopted, the strip is formed on one or both sides of the groove having an interval of 40 mm or more. Thus, in the lightweight cellular concrete panel according to the first invention,
Because the distance between the groove and the groove is 40 mm or more,
Even if the peeling zone has a greater depth than the bottom surface of the groove with a certain probability, the peeling band hardly reaches the bottom surface of the adjacent groove. For example, as shown in the side part 3 on the left side of FIG.
When the value is less than the predetermined range, the peeling band 5 often reaches the bottom surface portion 4 of the adjacent groove portion 2 with a certain probability, and the bottom surface portion 4 of the groove portion 2 rises more than the peeling band 5. You will not be able to take full advantage of the stone design.

As described above, according to the first aspect of the invention, since the interval p between the grooves 2 is set to 40 mm or more, the peeling band 5 is less likely to reach the bottom portion 4 of the adjacent groove 2, and a natural stone tone design is obtained. It can be fully utilized. In order to more surely prevent the separation band 5 from reaching the bottom surface portion 4 of the adjacent groove portion 2, the interval p between the groove portions 2 is set to 6
More preferably, it is 0 mm or more.

On the other hand, the interval p between the grooves 2 is set to 600 mm or less, and conditions such as the depth at which the peeling band 5 is formed are adjusted. Therefore, the intermediate portion between the grooves 2 is adjacent to the groove 2 on one side. At least 5 in the direction towards the groove 2
The stripping band 5 having a size of about 0 mm to about 100 mm or more can be formed. Therefore, on the surface of the lightweight cellular concrete panel in the middle part between the grooves 2, the natural stone-like exfoliated band 5 having an area ratio of about 8% to about 16% or more can be formed, and their design is utilized. In addition, it is possible to obtain an unprecedented lightweight cellular concrete panel. Further, the invention according to claim 2 of the present invention is the lightweight cellular concrete panel according to the first invention, wherein a peeling band is formed from both sides at an intermediate portion between the grooves.

According to the second aspect of the present invention, since the intermediate portion between the grooves has a dimension of 40 mm or more and the peeling band is formed from both sides, the intermediate portion between the grooves is located at the central portion. A peeling band is formed so as to project toward the surface of the panel. Therefore, for example, as shown in FIG. 13, a natural stone-like stripping band 5 faces the bottom surface portion 4 of the two adjacent grooves 2 from the side surface portion 3 of the two adjacent grooves 2. It is formed so as to be raised, and protrudes toward the surface of the panel at the center. Therefore, natural stone-like parts are particularly emphasized in the design,
It is possible to make full use of natural stone tone designs. First
As described in relation to the present invention, since the interval p between the groove portions 2 is also 40 mm or more in the second invention, the peeling band 5 hardly reaches the bottom portion 4 of the adjacent groove portion 2. Therefore, it is almost possible to form the stripping band 5 from both sides in the middle part of the groove 2. In order to more reliably reduce the possibility that the peeling band 5 reaches the bottom surface portion 4 of the adjacent groove portion 2 and more reliably form the peeling band 5 from both sides in the middle portion of the groove portion 2 and the groove portion 2, More preferably, the interval p between the grooves 2 is 60 mm or more.

On the other hand, the interval p between the groove portions 2 is set to 600 mm or less. Therefore, in the intermediate portion between the groove portions 2, the conditions such as the depth at which the separation band 5 is formed are adjusted so that two adjacent groove portions are formed. 2 each at least 50 mm in a direction from the side surface portion 3 toward the central portion of the groove portion 2 and the intermediate portion of the groove portion 2.
It is possible to form the peeling band 5 having a size of about 100 mm or more. Therefore, on the surface of the lightweight cellular concrete panel in the middle part between the grooves 2, the natural stone-like exfoliation zone 5 is formed so as to face and float from the side parts 3 of the two adjacent grooves 2, and the center is formed. It can be formed so as to be convex on the surface side of the panel at the part, and the area ratio of the peeling band 5 can be about 16% to about 32% or more. It can be a panel.

Next, referring to FIGS. 1, 7, 10 and 12, which schematically show examples of the surface appearance of the lightweight cellular concrete panel having a surface processed according to the present invention, a lightweight cellular cell having a groove formed in the surface. A technique for forming a strip on the side surface of the groove in the concrete panel will be described. In the present invention, a normal lightweight cellular concrete panel is:
The following manufacturing method is used.

For example, a mortar slurry obtained by adding water, a foaming agent, etc. to a calcareous raw material or a siliceous raw material is poured into a mold in which a large number of reinforcing bars are arranged, and a large mold-shaped block containing air bubbles is cured. Cut in a semi-cured state using a piano wire and cured in an autoclave. The lightweight cellular concrete panel according to the present invention includes any shape as long as it contains air bubbles, and is used for floors of buildings, roofs, flat panels used as partitioning materials, and protruding corners of outer walls. L-shaped and R-shaped corner panels, shapes of reinforcing bars, and those manufactured into a predetermined shape by cutting a panel after autoclaving are given.

The groove 2 to be first worked on the lightweight cellular concrete panel can be formed by using a drill, a milling cutter, a chip saw, a reamer, a woodworking saw, or the like of a cutting tool. In the case of the lightweight cellular concrete panel, the cutting workability is particularly easy, and the groove 2 can be formed on the flat surface formed by the cutting tool as described above.

The width and depth of the groove 2 are not particularly limited, and can be determined from the design and workability. The width and depth are generally 2 to 30 mm and 2 to 50 mm, respectively.
The shape of the bottom portion of the groove 2 can be determined by design and workability, but may be flat as shown in FIG. 5 or may be a curved R shape as shown in FIG. It may have a V-shaped shape as shown in FIG. The shape of the groove 2 in the longitudinal direction may be a straight line or a curved line. It may be a vertical straight line only, a horizontal straight line only, or a tiled or brick pattern composed of vertical and horizontal straight lines. The presence of the groove portion 2 can be recognized by the mechanically cut bottom portion 4 remaining continuously even if the peeling band 5 formed later exists in the groove portion 2. Further, the shape of the end portion 10 of the lightweight cellular concrete panel may be the same as the groove portion 2, or may be the shape of only the side portion 3 on one side of the groove portion 2, and may be composed of the side portion 3 on one side of the groove portion 2 and the bottom portion 4. Shape may be sufficient.

Normally, the bubbles and their edges existing at the portion corresponding to the surface of the lightweight cellular concrete panel are deformed or crushed by the piano wire at the time of cutting. Quality layer. Further, the cut surface is generally composed of a portion where bubbles are exposed and a heavy portion crushed by a cutting tool blade. The lightweight cellular concrete panel having the groove 2 formed on the surface thereof is as shown in FIG. 4, and is composed of a relatively smooth surface cut by a piano wire and the groove 2 cut by a cutting tool. Generally, it may be constituted by a surface portion cut by a cutting tool blade and the groove portion 2.

The surface-treated lightweight cellular concrete panel of the present invention is obtained by cutting the surface portion of such ordinary lightweight cellular concrete panel or the surface portion of ordinary lightweight cellular concrete panel horizontally with a cutting tool. A groove 2 is formed as a pre-treatment on the surface of the groove 2, and a side surface portion 3 of the groove 2 is physically impacted with a stripping tool to pry and form a strip 5.

The stripping strip 5 thus obtained does not exist with a continuous and constant width, and the missing width has an irregular wavy shape. It is not always necessary to provide the stripping band 5 formed by cutting off the side part 3 even if the side part 3 not stripped and the part stripped off are mixed irregularly. Good. Further, the peeling band 5 may be formed only along one side of the side surface portion 3 of the groove 2,
It may be formed on the opposite side portion 3, may be formed on both side portions 3, or may be a combination formed on one side portion 3 and the opposite one side portion 3. Further, a combination formed of one side surface portion 3 and both side surface portions 3 or an opposite one side surface portion 3 and both side portions 3 may be used, and the one side surface portion 3 and the one side surface portion 3 on the opposite side may be formed. And the side portions 3 on both sides may be combined, and the combination may be provided every two grooves, two or more grooves, or a combination thereof.

The peeling band 5 may be designed in a dot shape, a stripe shape, a lattice shape, a composite shape thereof, or the groove portion 2.
It is also possible to form a combination of a stripped band 5 formed on the entire surface between the groove and the groove 2 and a combination of these points, stripes, grids, and composites. The direction in which the peeling band 5 is formed may be the vertical direction or the horizontal direction of the lightweight cellular concrete panel, or may be a combination of both. Further, the peeling band 5 may be provided not only on the surface of the lightweight cellular concrete panel between the grooves 2 but also on the panel end 10 as shown in FIG.

Since the side portions 3 of the groove 2 are continuously present, the opposite side portions 3 may be irregularly formed with stripping strips 5 in which the side portions 3 are partially omitted. The strip | belt-shaped strip | belt 5 which removed the side part 3 irregularly and partially may be formed in the side part 3. FIG. Further, the stripping band 5 may be formed on the entire surface of the lightweight cellular concrete panel except for a part of the undeleted portion of the bottom portion 4 and the side portion 3 of the groove 2.

The shape of the blade of the peeling tool used for surface-treating the lightweight cellular concrete panel according to the present invention is not particularly limited, and can be determined from the design and workability. There is no particular limitation as long as it can give an impact that exerts a peeling action on the surface. For example, as shown in FIG. 6, the tip may be inclined, flat, or squid-shaped. It is preferable that the tip has a thickness of 0.5 to 25 mm and a width of 10 to 100 mm.

The shape (surface area, depth) of the stripping zone 5
Changes the design by changing various conditions such as the cross-sectional shape (width, depth) of the groove 2, the arrangement method of the groove 2 (the whole shape and interval of the groove 2), the shape of the stripping tool, and the insertion position. It is possible to be rich. The lightweight cellular concrete panel shown in FIG.
7 is an example in which the peeling strips 5 are formed on both sides of the straight vertical and horizontal grooves 2 in the lightweight cellular concrete panel shown in FIG.

FIG. 2, FIG. 9, FIG. 11, and FIG. 13 are cross-sectional views showing the missing state of the side surface portion 3 of the groove 2. As shown in FIG. Reference numeral 6 denotes a missing portion, and this portion is a portion that has been removed from the panel. Next, a method for surface-treating a lightweight cellular concrete panel subjected to a surface treatment according to the present invention will be described with reference to the drawings. On the surface of the lightweight cellular concrete panel,
First, a groove 2 is provided as a pretreatment, and an impact is applied to a side surface portion 3 of the groove 2 with a peeling tool, a part of a surface portion of the lightweight cellular concrete panel is peeled, and a peeling band 5 in a state where a cut surface of the bubble is exposed is removed. To form. For example, in a pattern as shown in FIG. 4, a peeling tool is inserted into the groove 2 of the lightweight cellular concrete panel 1 processed with the groove 2 as a pretreatment as shown in FIG. 5, and as shown in FIG. By prying in the direction, a physical impact is given to the side surface portion 3 of the groove portion 2 by a blade. Then, along the side surface portion 3 of the groove portion 2, the portion 6 (the missing portion) of the lightweight cellular concrete panel
Is removed and peeled off to form a peeling band 5 in which the cut surface of the bubble is exposed.

In this way, the lightweight cellular concrete panel whose surface is processed as shown in FIGS. 1, 7, 10 and 12 is obtained. During the manufacturing process, ordinary lightweight cellular concrete panels are manufactured by cutting large blocks into a number of panels using piano wire in a semi-plastic state before being cured by autoclaving. Bubbles on the panel surface are crushed by the piano wire and have a relatively flat surface.

The lightweight cellular concrete panel of the present invention, which has been subjected to a surface treatment, is obtained by cutting the surface portion of the ordinary lightweight cellular concrete panel or the surface portion of the ordinary lightweight cellular concrete panel horizontally with a cutting tool. On the surface of the grooved surface, the groove 2 was machined as a pretreatment, and the side surface portion 3 of the groove 2 was physically separated with a peeling tool 8.
Then, an impact is applied and the stripping band 5 is formed by prying.

The lightweight cellular concrete panel subjected to the surface treatment according to the present invention utilizes the property that the lightweight cellular concrete panel is relatively easily chipped and is fragile in terms of strength. It is based on the principle of giving a physical impact to the side part 3 with a peeling tool (for example, pry up with a peeling tool having a rotating mechanism, place a fulcrum on one side part 3 and pry up with the leverage principle). Because of this, it is possible to easily form the peeling band 5 without causing the compression mark of the peeling tool and damage to multiple parts, and to obtain the natural stone-like design such as the split stone-like, rock-like and stone-like tone obtained. It is so productive that you cannot imagine it.

[0029]

Now, the present invention will be described in further detail with reference to Examples. The evaluation was performed by the following method. (1) Impact test After stacking eight samples obtained in the examples on a table and fixing them with a wire rope, a gravitational acceleration of 1.5 G was repeatedly applied in the width direction and the length direction of the panel for 3 hours. Thereafter, the presence or absence of defects and cracks was observed. (2) Coating test Eight samples obtained in the examples were set on the mounting base, and the surface of the panel surface was sufficiently adjusted. Then, a commercially available coating material for lightweight aerated concrete panels was applied to the panel surface, and the main material was used. Spraying and spraying were performed according to the procedure of overcoating. As an undercoat, remake plastic (manufactured by Suzuka Fine) was used, and as finishing agents, bure (manufactured by Suzuka Fine) and Vic Cera (manufactured by Suzuka Fine) were used. At the time when the final curing for 24 hours was completed after the overcoating, the coated state and design of the panel surface were visually evaluated.

[0030]

Embodiment 1 As shown in FIGS. 4 and 5, the thickness is 100 m.
As a pre-treatment, a groove 2 was formed in the lateral direction of the lightweight cellular concrete panel as a pre-treatment by a normal processing method on a surface of the lightweight cellular concrete panel having a width of m, a width of 600 mm and a length of 3000 mm. Next, as shown in FIG. 6, the separation tool 8 having the rotation mechanism 7 is inserted into the space of the groove 2,
A repetitive right and left rotational motion as shown by arrows in the figure was applied to apply a force to pry the side portion 3 of the groove 2 to the blade of the peeling tool 8. As a result, a substantially circular exfoliated portion in which the cell holes were exposed was formed. The depth of the groove 2 was set to 10 mm, and the tip of the blade of the stripping tool 8 was brought into contact with a position 2 mm away from the bottom surface portion 4 of the groove 2 to pry up.
The width of the bottom part 4 was 9 mm. 6 is the missing part. When the above processing was continuously performed along the side surface portions 3 of all the groove portions 2, a peeling band 5 having uneven folds like natural stone was crushed was obtained. Further, as shown in FIG. 6, the peeling band 5 reaches the surface of the lightweight cellular concrete panel, and the interval p between the groove portions 2 is 41 mm, 66 mm, 91 mm, and 141 mm depending on the peeling state.
By setting the seeds, the peeling band 5 formed from the groove 2 on one side reaches the bottom 4 of the adjacent groove 2 on the surface of the lightweight cellular concrete panel which is an intermediate portion between the grooves 2. The portion 4 hardly appears to rise, and the groove 2 on one side and the adjacent groove 2
In the direction toward, a natural stone-like exfoliated zone 5 having an area ratio of about 8% to 16% or more can be formed, and an unprecedented lightweight cellular concrete panel utilizing their design properties can be obtained.

An embodiment in which the type of the groove 2 to be performed as the pretreatment is changed will be described below.

[0032]

[Embodiment 2] FIG. 1 is a view showing a thickness of 100 mm, a width of 600 mm,
On the surface of the lightweight cellular concrete panel having a length of 3000 mm, grooves 2 having slopes formed on both sides of the side portion 3 so that the inclination angle θ is 75 ° are formed, and the panel surface processed in the same manner as in Example 1 is schematically shown. FIG. 2 and 3 show a partially enlarged cross-sectional view and plan view. Groove 2
Was set to 11 mm, and the tip of the blade of the stripping tool 8 was brought into contact with a position 3 mm away from the bottom surface portion 4 of the groove portion 2 and pry up. The width of the bottom part 4 was 9 mm. A light-weight cellular concrete panel having a continuous split-stone-like design is obtained, and the peeling band 5 is less likely to be formed at a position deeper than the contact position between the side surface portion 3 of the groove 2 and the peeling tool 8, The peeling band 5 was not peeled to a position deeper than the bottom portion 4 of the groove 2.

The groove 2 has a pitch of 75 mm.
The width of the bottom portion 4 is 9 mm, so that the adjacent groove 2
Is 66 mm (75 mm-9 mm), and the interval p is set to 40 mm or more. Therefore, the peeling strip 5 formed along the side surface portion 3 of the groove 2 did not reach the bottom surface portion 4 of the adjacent groove 2. In this embodiment, the groove 2 and the intermediate part of the groove 2 are separated from each other by stripping bands 5 from both sides.
However, there was almost no contact between the peeling zones 5 facing each other on the surface of the lightweight cellular concrete panel, which is an intermediate portion between the grooves 2. Of course, with respect to the specification of the second embodiment, the depth and spread of the stripping band 5 can be increased by setting the side surface portion 3 of the groove 2 to a vertical surface or increasing the insertion depth of the stripping tool. It is also possible to configure so that the opposing peeling zones 5 are in contact with each other, and it is also possible to form the peeling zone 5 on the entire surface of the lightweight cellular concrete panel between the grooves. In any case, the strips 5 are provided on both sides of the groove 2 in the middle part of the groove 2 in this manner.
, The stripping band 5 having a natural stone-like texture appears to be raised with respect to the bottom surface portion 4 of the groove portion 2, and a lightweight cellular concrete panel with particularly excellent design properties can be provided. In FIG. 1, the number of the grooves 2 arranged in the long side direction of the panel is shown as 16, but it is a schematic plan view, and actually, the panel length is 3000 mm. On the other hand, groove 2
Is 75 mm, the number of the groove portions 2 is 39.

Also, about 50% of the surface of the lightweight cellular concrete panel, which is an intermediate portion between the grooves 2, remains without being peeled off, and remains on the surface of the lightweight cellular concrete panel according to the second embodiment. The back surface of another lightweight cellular concrete panel whose surface was processed could be placed flat on top of each other. For this reason, when stacked and transported by truck or the like, the cargo is less likely to collapse and is convenient. Actually, if 8% of the surface of the lightweight cellular concrete panel, which is an intermediate portion between the groove portions 2, remains without being separated, it is possible to stack the panels in a stable state.

Also, by changing the inclination angle θ of the side portion 3, the contact position between the side portion 3 of the groove 2 and the stripping tool 8, the shape of the stripping tool 8, etc., the intermediate portion between the groove 2 and the groove 2 is changed. It is possible to control the ratio by which a certain lightweight cellular concrete panel surface remains without being peeled off. In FIG. 1, the horizontal grooves 2 are set vertically, the vertical grooves 2 are set horizontal, and the long sides of the panels are set horizontal, but they are actually used on the walls of buildings. In that case, make the long side direction of the panel a vertical direction,
That is, the lightweight cellular concrete panels may be erected in a vertical arrangement with the panel width direction (the direction of the groove 2 in the horizontal direction) being horizontal.

[0036]

Embodiment 3 FIG. 7 shows a thickness of 100 mm, a width of 600 mm,
On the surface of the lightweight cellular concrete panel having a length of 2200 mm, grooves 2 having a slope formed on the side portion 3 so that the inclination angle θ is 80 ° are formed vertically and horizontally, and then the side portions on both sides of the groove 2 of the lightweight cellular concrete panel FIG. 3 is a panel surface schematically illustrating the panel surface No. 3 processed in the same manner as in the first embodiment. The interval p between the grooves 2 was 190 mm. FIGS. 8 and 9 show a partially enlarged plan view and cross-sectional view. A lightweight cellular concrete panel having a stone-like design is obtained, and a peeling band is hardly formed at a position deeper than a contact position between the side surface portion 3 of the groove 2 and the peeling tool 8, and the groove 2 and the groove are formed. 2 was formed on the surface of the lightweight cellular concrete panel, which is an intermediate portion between the strip 2 and the groove 2 having a natural stone-like texture.
Thus, it was possible to provide a lightweight cellular concrete panel which appeared to be raised with respect to the bottom surface portion 4 and was particularly excellent in design. In the third embodiment, the shape of the bottom surface portion 4 of the groove 2 is a curved R shape.

[0037]

Fourth Embodiment FIG. 10 and FIG. 11 show a panel surface in which one side surface portion 3 of a groove portion 2 having a slope formed on a side surface portion 3 so that an inclination angle θ is 60 ° is processed in the same manner as in the first embodiment. And a cross-sectional view are schematically shown. A light-weight cellular concrete panel having a design of a straight split-stone style composed of the side portion 3 having the peeling band 5 and the unprocessed side portion 3 is obtained, and the side portion 3 of the groove portion 2 and the peeling tool 8 are formed. No peeling band was formed at a position deeper than the contact position. Moreover, the peeling band 5 is formed on about 10% of the surface of the lightweight cellular concrete panel which is an intermediate portion between the grooves 2, and the lightweight cellular concrete panel utilizing the natural stone tone design can be obtained. Was.

[0038]

[Embodiment 5] FIG. 12 shows a thickness of 100 mm and a width of 600 m.
m, about 2500 mm in length, on the surface of a lightweight cellular concrete panel, a number of grooves 2 having a large number of vertical and horizontal grooves 2 formed with slopes on the side portions 3 so that the inclination angle θ is 70 °. Example 1 with side portions 3 on both sides
7 is an example showing a panel surface processed by the same method as in FIG. The distance p between the grooves 2 arranged in the horizontal direction was 66 mm as in Example 2. Further, the stripping band 5 was formed only from the grooves 2 arranged in the horizontal direction, and was not formed from the grooves 2 arranged in the vertical direction. As shown in the cross-sectional view and the plan view in FIGS. 13 and 14, the entire surface of the lightweight cellular concrete panel excluding a part of the undeleted portion of the bottom portion 4 and the side portion 3 of the groove portion 2 is formed by the exfoliation band 5. A light-weight cellular concrete panel having a tone design was obtained, and, of course, almost no peeling band was formed at a position deeper than the contact position between the side surface portion 3 of the groove 2 and the peeling tool 8. The groove 2 and the groove 2
On the surface of the lightweight cellular concrete panel in the middle part, a natural stone-like stripping band 5 is formed so as to face and float from the side surface part 3 of the two adjacent grooves 2, and the center part is located on the surface side of the panel. It could be formed to be convex.

In the fifth embodiment, the insertion position of the tip of the blade of the peeling tool 8 is set at 2 mm from the bottom 4 of the groove 2.
A separation band 5 is formed as a distant position. Then, the side surface portion 3 is 2 m closer to the bottom surface portion 4 of the side surface portion 3 of the groove portion 2.
m could be left. For this reason, the peeling band 5 appears to be slightly raised from the bottom portion 4 of the groove portion 2,
The natural stone tone design was emphasized and utilized.

[0040]

[Reference example] Eight lightweight foam concrete panels each having a thickness of 100 mm, a width of 600 mm, a length of 3000 mm, etc. obtained in Examples 1 to 5 were prepared, stacked and subjected to an impact test. No chipping or cracking occurred in the portion 3, and the shape immediately after processing was maintained.
However, in Example 5, since the peeling band 5 was formed on the entire surface of the lightweight cellular concrete panel, which was an intermediate portion between the grooves 2, the convex portion of the peeling band 5 was partially crushed. Therefore, when the peeling band 5 is formed on the entire surface of the lightweight cellular concrete panel as in the fifth embodiment,
When stacking and transporting by truck or the like, it is preferable to sandwich a cushioning material such as a foamed polyethylene sheet between the panels.

Next, a coating test and a construction test were performed on all of the lightweight cellular concrete panels obtained in Examples 1 to 5. As a result, at the time of coating, there is no occurrence of insufficient coating material or uneven coating on the side surface of the groove, and when used as an outer wall, due to the shape of the uneven strip of the peeling band, the normal lightweight cellular concrete panel Clear contrast and natural stone-like texture not found in buildings were obtained. However, in the undercoating at the time of painting, after spraying a base treatment material (such as a resin filler), a brushing ironing is performed, and the resin filler is clogged with the air bubbles of the exfoliation zone 5 in which the air bubbles of the lightweight cellular concrete are exposed as they are. This is particularly preferable because bubbles do not appear in the appearance after coating and a more suitable natural stone-like texture can be utilized.

[0042]

According to the first aspect of the present invention, since the separation band is formed on one side or both sides of the groove having an interval of 40 mm or more, the separation band hardly reaches the bottom of the adjacent groove. It is possible to make full use of natural stone-like designs. In addition, since the strip is formed on one or both sides of the groove with the interval of 600 mm or less, the lightweight cellular concrete panel surface in the middle of the groove and the groove has an area ratio of 8% to 16%.
% Or more of the natural stone-like exfoliation zone 5 can be formed, and an unprecedented lightweight cellular concrete panel utilizing their design can be obtained.

In the second invention, the grooves are provided at intervals of 40 mm or more, and the intermediate portion between the grooves is formed with a peeling band from both sides. Therefore, the grooves are naturally formed from the side portions of the two adjacent grooves. The stone-like peeling band is formed so as to be opposed and floats up, and it is convex on the surface side of the panel at the center part, and the natural stone-like part is particularly emphasized on the design, and the natural stone-like design is sufficiently enhanced It can be utilized. The grooves are provided at intervals of 600 mm or less, and a natural stone-like peeling band is opposed to the side surface of the two adjacent grooves on the surface of the lightweight cellular concrete panel in the middle of the grooves. It can be formed so as to be raised so as to protrude toward the surface of the panel at the center, and the area ratio of the peeling band can be about 16% to 32% or more, making use of their design. In addition, it is possible to obtain an unprecedented lightweight cellular concrete panel.

In the lightweight cellular concrete panel having a surface processed according to the present invention, since a peeling band is formed along the side surface of the groove, there is little damage due to an impact during transportation or the like. Even if damage occurs, there is an advantage that the difference between the peeled strip processed first and the damaged portion is difficult to recognize, and cannot be identified as damage. It is possible to overcome the problems of the conventional lightweight cellular concrete decorative panel, such as damage due to impact during transportation or the like.

Further, in the lightweight cellular concrete panel obtained by the surface treatment obtained according to the present invention, there is no decrease in the adhesion of the coating material on the side surface of the groove, and the conventional method has such a problem that the adhesion of the coating material on the side surface of the groove is reduced. Overcoming the essential challenges of lightweight aerated concrete decorative panels. In addition, when used as an outer wall, the irregular angle of the peeling band makes the incident angle of ultraviolet light irregular, so that a new effect that deterioration of the coating material can be reduced also occurs.

Further, the appearance of a natural stone-like surface texture such as a split stone tone, a stone tone tone, and a rock face tone can be obtained by the peeling zone.
Since it expresses a design that cannot be achieved only with ordinary lightweight cellular concrete panels, it can sufficiently respond to the needs of the recent construction market such as differentiation, individualization, and high added value. The surface processing method of the present invention is to apply a shock to only the side surface of the groove portion as a pre-treatment with a peeling tool to peel off the lightweight cellular concrete body. Therefore, the original manufacturing method and various properties of the lightweight cellular concrete panel This enables industrial production of decorative panels with good productivity and at low cost without changing.

Further, dimensions and shapes of grooves to be performed as pre-processing,
Depending on the size and shape of the peeling tool and the combination of both,
It is industrially superior, as it can express various variations.

[0048]

[Brief description of the drawings]

[0049]

FIG. 1 is a plan view schematically showing an example of a lightweight cellular concrete panel subjected to a surface treatment obtained according to the present invention.

[0050]

FIG. 2 is a cross-sectional view of the lightweight cellular concrete panel of FIG. 1 in which a groove is cut at a right angle to a longitudinal direction.

[0051]

FIG. 3 is a partially enlarged plan view schematically showing a portion between grooves in FIG. 1;

[0052]

FIG. 4 is a plan view schematically showing a lightweight cellular concrete panel in which a groove is processed before surface processing.

[0053]

FIG. 5 is a cross-sectional view schematically showing a cross section perpendicular to the longitudinal direction of a groove of the lightweight cellular concrete panel of FIG. 4;

[0054]

FIG. 6 is a sectional view schematically showing a method for processing a lightweight cellular concrete panel of the present invention.

[0055]

FIG. 7 is a plan view schematically showing one example of the appearance surface of the lightweight cellular concrete panel of the present invention.

[0056]

FIG. 8 is a plan view schematically showing a partially enlarged surface of FIG. 7;

[0057]

9 is a cross-sectional view schematically showing a cross section of the lightweight cellular concrete panel of FIG. 7 perpendicular to the longitudinal direction of the groove.

[0058]

FIG. 10 is a plan view schematically showing one example of the lightweight cellular concrete panel of the present invention.

[0059]

FIG. 11 is a cross-sectional view schematically showing a cross section perpendicular to the longitudinal direction of the groove of the lightweight cellular concrete panel of FIG. 10;

[0060]

FIG. 12 is a plan view schematically showing the external appearance surface of an example of the lightweight cellular concrete panel of the present invention.

[0061]

13 is a cross-sectional view schematically showing a cross section perpendicular to the longitudinal direction of the groove of the panel of FIG.

[0062]

FIG. 14 is an enlarged plan view schematically showing a part of FIG. 12;

[0063]

FIG. 15 is a cross-sectional view schematically illustrating a peeling state in a cross section perpendicular to the groove of the panel in an example in which there is no slope in the side surface of the groove.

[0064]

FIG. 16 is a cross-sectional view schematically illustrating a peeling state in a cross section perpendicular to the groove of the panel in an example in which a groove interval p is less than 40 mm.

[0065]

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lightweight cellular concrete panel 2 Groove part 3 Side part of groove part 4 Bottom part of groove part 5 Stripping band 6 Missing part 7 Rotating mechanism 8 Peeling tool 9 Ridge of unevenness of peeling band 10 Edge part of lightweight cellular concrete panel 11 Lightweight cellular concrete panel Non-surface processed part θ Slope angle of groove side part p Interval of groove part

Claims (2)

[Claims] 1. A lightweight cellular concrete panel having grooves on its surface, wherein the distance between the grooves is 40 m.
m and not more than 600 mm, wherein a release band is formed on one or both sides of the groove. 2. The lightweight cellular concrete panel according to claim 1, wherein a peeling band is formed on both sides of the intermediate portion between the grooves.