JP5068013B2 - Repair method - Google Patents

Description

  The present invention relates to a method for repairing a defect portion generated in a lightweight cellular concrete panel, and particularly to a repair method for rationally repairing a defect portion when a defect portion is generated in a pattern formed on the panel surface.

  Lightweight cellular concrete panels are often used as building outer wall panels because they are superior to other panels such as ceramic siding in terms of fire resistance and heat insulation. Conventionally, flat panels that are not specially processed on the panel surface and those that have been subjected to simple horizontal or vertical groove processing have been mainstream, but recently, the surface of the panel has been subjected to complicated groove processing such as curves. For example, as described in Patent Document 1, the panel surface is peeled off by applying a peeling blade to the side wall of a groove portion formed in advance and scooping up the edge portion to produce a calcite tone (like crushed natural stone The design of the outer wall panel made of lightweight cellular concrete has been greatly improved.

  The work of forming a pattern on the lightweight cellular concrete panel is performed at the factory stage, and then carried into the target building site by a transportation means such as a truck. At this time, a part of the pattern may be missing when handling the cargo during transportation or for an unexpected cause, and the missing part is repaired each time. Also, sometimes the lightweight cellular concrete panel is attached to the housing to form a hole for piping, and then the position of the piping may be changed. Repairing the missing part on site is performed.

  The repair method when a part of the pattern formed on the surface of the lightweight cellular concrete panel as described above is lost is, for example, a mixed powder of Portland cement, lightweight cellular concrete powder, obsidian perlite described in Patent Document 2 The defect material is filled with a repair material comprising a body material and an acrylic latex emulsified with a nonionic dispersant, and then the defect pattern is restored using a metal hammer or the like.

  On the other hand, when a concrete block is shaped like a natural stone or when a pattern imitating a natural stone is formed on the surface of a concrete panel, the hard frame can be formed with silicon rubber or the like. In addition, a pattern is formed by placing concrete on the frame (see, for example, Patent Document 3).

JP-A-11-333828 Japanese Patent Laid-Open No. 2003-300768 Japanese Patent No. 2852888

  When repairing a defective part of a pattern in a lightweight cellular concrete panel with a complex pattern as described above, if the repair is carried out by a repair method as described in Patent Document 2, it corresponds to the pattern using a hammer. However, it is difficult to restore the pattern of the same design with a hammer depending on the degree of complexity. There also arises a problem that it must be replaced with a new one.

  Although the invention described in Patent Document 3 suggests that the pattern is transferred by using silicon rubber or the like, the invention itself does not have the purpose of repairing the defective portion of the pattern. And this does not suggest this. Therefore, the invention described in Patent Document 3 is not applicable as a pattern repair technique.

  Moreover, the peeling apparatus described in patent document 1 is a large-scale thing which should be arrange | positioned in the manufacturing factory of a lightweight cellular concrete panel. Therefore, in a construction site, for example, it is not a technology that can realize the work of, for example, repairing the pattern of the same design by peeling the panel surface using this device after filling the defective part with a repair material etc. and flattening it once. .

  The object of the present invention is to provide a construction site for a new building or a repair site for an existing building even if the pattern formed on the lightweight cellular concrete panel has a complicated shape. It is an object of the present invention to provide a repair method that can be repaired with a simple operation.

  In order to solve the above problems, a repair method according to the present invention is a repair method for repairing a defective portion of a pattern in a lightweight cellular concrete panel having a pattern of the same design formed by cutting the surface. There is a filling material in which a pattern material with the same design as the pattern previously formed on the lightweight cellular concrete panel is prepared, and a filling material is filled with a repair material in the defective portion of the pattern on the lightweight cellular concrete panel. A mold material which is formed and held in contact with and held against the defect portion of the pattern, and the repair material is filled in the defect portion via the filling path, and is further held in contact with and held against the pattern defect portion. It is characterized by repairing a defect part by detaching.

  Here, the “same design” means not only when the shape of the pattern is completely the same (same shape), but also with the same texture and the same visual appearance by the same processing method and almost the same processing range. Including the case where an impression is given, a certain degree of difference in shape is allowed. For example, when a peeling band is formed by peeling processing under the same conditions by the peeling device described in Patent Document 1, it can be said that a pattern having the same design is formed although it is not the same shape.

  In the above repair method, the filling path is formed from a portion where the pattern on the surface of the lightweight cellular concrete panel is not formed to a defective portion of the pattern, or from the back surface of the lightweight cellular concrete panel to the defective portion of the pattern. Preferably it is.

  In any of the above repair methods, when the lightweight cellular concrete panel to be repaired is in an upright state, the filling path is connected to the upper end of the pattern defect and the filling port of the repair material to the filling path is patterned. Preferably, it is formed at a position higher than the upper end of the defective portion.

  In any of the above repair methods, it is preferable that the mold material has transparency.

  In the main repair method according to the present invention, a pattern defect portion (peeling, notching or unnecessary holes) formed in a lightweight cellular concrete panel (hereinafter referred to as “ALC panel”), hereinafter simply referred to as “defect portion”. ) Is prepared in advance, a mold material in which a pattern of the same design as the pattern formed on the ALC panel is prepared in advance, and a filling path for filling the repair material in the defect portion is formed, and the mold material is damaged. By facing and holding the part, the filling path is continuous between the surface of the ALC panel and the surface of the mold material in the defective part, and the same shape and volume as the shape and volume of the defective ALC panel are obtained. A space with it is formed. Then, the repair material is filled into the space through the filling path, and after the filled repair material is cured, the mold material held in contact with the ALC panel is detached from the ALC panel so that the pattern of the mold material is transferred and cured. The defect can be repaired with the material.

In this method, the filling material is also filled with the repairing material, but in the vicinity of the filling port of the repairing material with respect to the filling route, depending on the angle of the surface where the filling port is formed, it overflows from the filling port and hardens. it and the repair material remains, there is a preparative go a completely filled in order to avoid an overflow of the repair material in the vicinity of the filling opening in reverse. However, since the filling port is formed on a flat surface on which the pattern of the front and back surfaces of the ALC panel is not formed, the excess repair material hardened near the filling port is scraped to be flattened or completely filled. The filling port can be repaired easily by filling a non-filling port with a highly viscous repair material and finishing it flat using a metal hammer. Further, when the filling port is formed on the back surface of the ALC panel, some unevenness is allowed as long as there is no shortage of filling, so that it is not necessary to spend time to finish it flat.

  In any of the above repair methods, when the ALC panel to be repaired is in an upright state, that is, in a state of being attached to the building frame, the filling path is connected to the upper end of the defective portion and the filling path is repaired. By forming the filling port of the material at a position higher than the upper end of the defect part, when the repair material is filled from the filling port, it can flow down to the defect part by its own weight and be filled. Therefore, the defect portion can be repaired without removing the ALC panel attached to the housing as the outer wall panel.

  In any of the above repair methods, by making the mold material transparent, it is possible to visually check the filling state of the repair material to the defect portion and eliminate the repair failure due to the insufficient filling amount of the repair material. And reliable repair can be realized.

  The most preferred embodiment of the repair direction according to the present invention will be described below. In the repair method according to the present invention, when a pattern with the same design formed by cutting the surface of the ALC panel has a defect, a mold material in which the pattern with the same design as the pattern is preliminarily molded with respect to the defect portion. By holding them facing each other, a space having the same shape and volume as the shape and volume of the part that has been detached (deleted) from the ALC panel is formed, and repair is performed by filling and hardening this space with a repair material. It is about how to do.

  In the present invention, as a repair material for repairing the defect portion, any material having high fluidity and high adhesion to the ALC panel can be used. As such a repair material, the ALC repair material including the repair material described in Patent Document 1 has a moisture ratio increased to such a level that there is no problem in strength, and fluidity generally called a grout material. It is preferable to use a filler.

  The design or shape of the pattern formed by cutting the surface of the ALC panel is not limited. That is, the ALC panel constitutes the outer wall of the building, and can correspond to an arbitrary ALC panel having a design according to the use of the building, the preference of the architect, or the like. In addition, the same design means that the pattern shape (width, depth, curvature, spacing, etc. of the cutting part) that realizes this design need not be completely the same, and gives the same impression by visual observation. If a pattern is formed, a certain amount of shape difference is allowed.

  An example of the pattern of the same design formed on the surface of the ALC panel will be described with reference to FIG. As the unique design, for example, as shown in FIG. 1 (a), a vertical groove having a trapezoidal section (including grooves at panel joints at both ends of the panel; the same applies hereinafter) and a lateral groove having a trapezoidal two steps In some cases, patterns having the same design (same shape) are continuously formed. Also, as shown in FIG. 5B, a pattern comprising a longitudinal groove having a curved surface in the depth direction, and a transverse groove having a V-shaped cross section whose width changes in a wavy shape and the waveforms of adjacent grooves are shifted by a half cycle. Are formed at equal intervals in the vertical and horizontal directions, so that patterns having the same design (same shape) are continuously formed.

  Further, as shown in FIG. 4C, the surface of the area defined by the equally spaced grooves in the vertical and horizontal directions is crushed so that the vertical cross section has a substantially mountain shape, so that a quarrel-like pattern is formed. There are patterns that have the same design although the shape of the pattern of the sections is different. Further, as shown in FIG. 4D, the vertical grooves are formed at substantially the same interval and the horizontal grooves are formed at different intervals, and are partitioned into block-like regions by the vertical and horizontal grooves, and the region having the widest interval is formed. By forming the upper and lower edges of the compartments in a guillotine-like shape, there is a design that has a sensation of overlapping plate stones and crushed stones, and there is a pattern that has the same design although the shape of the pattern is different for each compartment.

  The pattern as described above is formed by cutting the surface of the ALC panel. In the present invention, the cutting process is not necessarily limited to a process of cutting using a rotating blade such as an end mill or a milling cutter. Including cutting the surface by striking the surface with a chisel, cutting the surface by rotating a grindstone, and cutting to scratch the surface with a linear or bar-shaped tool Is included.

  When a pattern is formed by cutting the surface of the ALC panel, it is generally performed in advance at the factory stage. However, the present invention is not necessarily limited to cutting at the factory stage, and it is preferable to include a case where a pattern is formed on the surface of the ALC panel by cutting at the site. Such a cutting process is performed when the design before the renovation is changed by performing a cutting process on the surface of the ALC panel having a flat surface that has already been installed in the renovation of the building.

  In the present invention, the mold has a pattern having the same design as the pattern formed on the ALC panel in advance. That is, a pattern of the same design as the design of the target ALC panel is stamped on one surface of the mold material, and repair is performed with the surface of the stamped pattern facing a defective portion generated in the ALC panel. By filling the material, the pattern is transferred to the repair material to repair the defective portion of the ALC panel.

  As described above, a pattern having the same design as the pattern formed on the ALC panel is stamped on the mold material. That is, the repair method according to the present invention repairs a defective portion of a pattern when the pattern formed on the ALC panel is damaged, and an ALC panel having no pattern formed thereon, for example, a flat surface. It is not intended for ALC panels that are formed only by a surface, or even when a pattern is formed on the surface, such that a defective portion is formed only on a flat surface. For example, even if a defect occurs on such a flat surface, it can be easily repaired by a conventional repair method in which the defect portion is filled with a repair material and the surface is leveled with a hammer or the like.

  The method of taking a pattern on the mold material is not particularly limited. For example, it is possible to prepare a plate material made of wood, hard rubber or the like having a size corresponding to the size of the pattern in the ALC panel, and machine the surface of this plate material to mold it. It is also possible to mold a pattern by pouring and solidifying a fluid material on the surface of the ALC panel. In this way, it is possible to mold as a mold material by any method. However, in the latter method, the procedure is simple and the pattern formed on the actual ALC panel is transferred. Since the mold is taken, it is preferable because it has closeness to the shape of the pattern of the defective portion of the shape of the pattern that has been taken. In particular, the latter method is effective in the case where the pattern is a rubble-like pattern randomly formed by peeling or crushing the surface of the ALC panel.

  The pattern formed on the ALC panel is similar to the above-described grooves formed at equal intervals in the vertical and horizontal directions shown in FIG. 1A, and waves having a constant period and amplitude shown in FIG. Some of them are relatively monotonous and repeat the same shape, such as a groove whose width changes. In this case, it is possible to form a mold material by taking a groove having a pattern shape with a predetermined length.

  In addition, there are cases where the pattern and shape are complex and some of the shapes are not repetitively expressed, such as the crushed stone pattern shown in FIGS. In such a chopping stone pattern, in order to express as if a rectangular chopping stone of a predetermined size is stuck on the outer wall, grooves (pseudo joints) are formed at predetermined intervals in the vertical and horizontal directions and partitioned. It is common. In this case, if the mold material is configured by molding a part of the crushed stone pattern, during the repair, it is not possible to smoothly continue the pattern at the boundary between the actual pattern and the pattern molded into the mold material. Have difficulty. For this reason, a pattern of the same design is stamped on the entire area divided by the groove in the mold material, and when a defect occurs in any of the sections, the section including the defective portion is scraped over the entire area to form the mold material. It is preferable to repair one section by repairing with a pattern that has been molded.

  When a pattern formed on an ALC panel is cast with a material having fluidity, the surface of the ALC panel is formed as a unit of a pattern formed on the ALC panel and having no defect (for example, the pattern is a cosmetic joint). In the case of being formed in a region partitioned by a region, a region including approximately half the area of a plurality of adjacent partitions centered on a single region) is divided by a partition, and ALC For example, a material having sufficient releasability and sufficient durability even when repeatedly used is poured and solidified, and then peeled off. In this case, the workability is good, and the pattern actually formed on the ALC panel is transferred and the mold is taken. For example, the defective part of the ALC panel other than the ALC panel that becomes the mold model is repaired. It is possible to assure that the same design is used as the mold material at that time, which is preferable.

  It does not specifically limit as a material which has fluidity | liquidity, peelability, and durability used when employ | adopting the said method and comprising a mold material. However, according to the knowledge of the present inventors, rubbers including, for example, silicon rubber and urethane rubber are preferable.

  The mold material is held in contact with and held against the pattern defect formed on the ALC panel. There is no particular limitation on the rigidity of the mold material, that is, whether or not the mold material is easily bent. However, when actually proceeding with the work, the ALC panel surface and the mold material are brought into close contact with each other on the non-defect portion of the pattern not filled with the repair material or the flat surface where the pattern is not formed, thereby preventing leakage of the repair material having fluidity. Since it is necessary, it is preferable that the mold material has appropriate flexibility.

  When the mold material is held in contact with the deficient portion of the ALC panel, it is preferably fixed to the ALC panel using a fixing tool such as a concrete screw. When the mold material has high rigidity, it can be held by fastening the fixing tool penetrated through the mold material to the ALC panel. Further, when the mold material has moderate flexibility, the mold material is brought into contact with the defect portion and then contacted, and then the reinforcement material is brought into contact with the mold material and the reinforcement material is fixed to the ALC panel by a fixture. It is possible.

  It does not specifically limit whether a mold material has transparency. However, when the mold material is held on the ALC panel, it is preferable that the filling state can be visually confirmed when the repair material is filled in the space formed by the mold material and the ALC panel. Therefore, the mold material has transparency. It is preferable.

  The above-described silicon rubber and urethane rubber are preferable for use as a material constituting the mold material because they have appropriate flexibility and transparency.

  The shape of the reinforcing material is not particularly limited, and a rod-shaped reinforcing material that holds the mold material in a linear shape or a plate material that holds the mold material in a planar shape can be applied, but the mold material does not get caught by filling the reinforcing material. Thus, it is preferable to select appropriately according to the size and volume of the defective portion, the rigidity of the mold material, and the like. Furthermore, when the mold material has transparency and the reinforcing material is plate-like, the reinforcing material preferably has transparency such as an acrylic plate in order to ensure transparency.

  The repair material is filled in the space formed between the surface of the ALC panel and the mold material in the defect portion by holding the mold material in contact with the defect portion and holding it. For this reason, the filling path for filling the space with the repair material is configured. There are ALC panels and molds as the parts that can constitute the filling path, and any of these may be used.

  When the filling path is configured as an ALC panel, the surface of the ALC panel can be cut into a groove shape to form a filling path, and a hole that penetrates the ALC panel in the thickness direction is formed to form the filling path. It is possible. When a filling path is formed in the mold material, the mold material is held in contact with the chipped portion, and then a hole is formed through the mold material in the thickness direction so as to communicate with the space formed in the chipped portion. In addition, when the repair material is filled in the entire region defined by the vertical and horizontal grooves, a hole serving as a filling path may be formed in advance, and the contact with the ALC panel of the mold material may be performed. A groove-shaped filling path that communicates with the small facet above the mold material may be formed on the contact surface side.

  When the surface of the ALC panel is cut into a groove shape and used as a filling path, considering the size of the mold material, one end of the groove is connected to the chipped part and the other end corresponds to the edge of the mold material. It is preferable to set it to a position that forms a flat surface where no pattern is formed. When such a filling path is configured and the surface on which the filling port is formed is not a horizontal plane, the defect is filled with the repairing material using a funnel-shaped filling guide or the like, and then the filling path is continuously provided. The repair material is filled. And when the surplus repair material hardens in the vicinity of the filling port formed in the part corresponding to the edge of the mold material at the end of the filling path, use a tool such as a chisel after removing the mold material from the ALC panel. It is possible to repair the filling path of the repair material from the filling port through the filling path to the defect portion by suspending and finishing with a sander or the like. Alternatively, the filling path may not be completely filled with the repair material, and the vicinity of the filling port may be left in an unfilled state, and the unfilled portion may be filled with a highly viscous repair material and finished smoothly with a hammer or the like. In any method, since the filling port is located on a flat surface on which no pattern is formed on the ALC panel, it is possible to easily repair the vicinity of the filling port.

  Further, when a hole penetrating in the thickness direction is formed in the ALC panel to form a filling path, it is preferable to configure the hole in communication with the defect portion. When such a filling path is configured, it becomes possible to fill the repair material from the back side of the ALC panel, and the repair near the filling port can be repaired in the same way as when the filling path is formed on the front side. it can. Furthermore, since the filling port is formed on the back surface side of the ALC panel covered with the interior material, it is not necessary to spend time to finish it smoothly.

  In addition, when a hole that penetrates in the thickness direction is formed in the mold material to form a filling path, the repair can be performed by filling the repair material from the upper part of the hole toward the defect part with the surface side of the ALC panel facing upward. Is possible. After the repair material is cured, when the mold material is detached from the ALC panel, it is possible to repair the defect by folding the cured repair material remaining in the hole formed in the mold material.

  In addition, when forming a groove-like filling path that communicates with the ALC panel of the mold material up to the small edge surface above the mold material, an extra repair material that has hardened in the filling path after the mold material is detached from the ALC panel It can be easily repaired by suspending it with a tool such as a chisel and finishing it with a sander.

  In particular, when the ALC panel constitutes the outer wall of the building, that is, when the ALC panel is in an upright state, the filling path is connected to the upper end portion of the defective portion and the filling port is sufficiently formed from the defective portion. It is preferable to configure at a high position. By configuring such a filling path and a filling port, when the repair material is filled from the filling port, the repair material can flow down to the defect portion by its own weight.

  A space for filling the repairing material is formed by the surface of the defective portion of the ALC panel and the surface of the mold material by facing and holding the mold material facing the defective portion. At this time, if the distance between the surface of the defect portion of the ALC panel and the surface of the mold material is small, the repair material may not be sufficiently filled, and good repair may not be realized. In the experiments of the present inventors, it has been found that if the distance between both surfaces is not secured at least about 5 mm, it is difficult to realize the filling of the repair material in a preferable state.

  Therefore, when repairing an ALC panel in which a defect has occurred, first, the defect depth in the defect portion is confirmed, and if this defect depth is greater than about 5 mm, the procedure for performing repair directly is entered. However, if the defect depth is shallower than about 5 mm, use a tool such as a chisel to scrape around the defect part and the defect part to ensure a defect part depth of at least about 5 mm. Is required.

  When the defect portion and the periphery are shaved to ensure the defect portion depth, the area to be scraped is preferably set as appropriate in accordance with the nature of the pattern formed on the ALC. For example, when patterns with the same shape of the same design are continuously formed, only the periphery including the defective portion may be cut to a depth of about 5 mm.

  However, even if the pattern is different in shape even if it is the same design, such as a spar pattern, even if there is no defect around the defect part, the section including the defect part It is necessary to scrape the entire area to a depth of about 5 mm. Thus, it becomes possible to implement | achieve favorable repair by repairing the division containing a defect | deletion part as a unit.

  Next, an embodiment of the repair method will be described with reference to the drawings. FIG. 2 is a diagram for explaining an example of a procedure for producing a mold material. FIG. 3 is a diagram for explaining an example of a mold material manufactured by the procedure of FIG. FIG. 4 is a diagram for explaining a procedure for attaching a mold material when repairing a defective portion of an ALC panel. FIG. 5 is a diagram for explaining a procedure for repairing a defect portion by filling a repair material.

  First, an example of a method for producing a mold material will be described with reference to FIG. In the method of this example, a mold material is manufactured using an ALC panel in which no defect has occurred in advance. First, a pattern in which the ALC panel A is not damaged (the pattern in this example is composed of a vertical groove 1 formed in a trapezoidal shape in one step and a horizontal groove 2 formed in a trapezoidal shape in two steps having different depths. And a flat surface 3 on which a pattern is not formed is formed in the area defined by the grooves 1 and 2). In this example, the grooves 1 and 2 are formed continuously over the entire surface of the ALC panel A, and adjacent grooves 1 and 2 are formed at a constant interval.

  The partition material 5 is arranged in a range including the selected section and a part of another section continuous to the section. The partition member 5 is arranged and fixed on the surface of the pattern formed on the ALC panel. What is used as the partition member 5 is not limited at all, and it is possible to use a foamed synthetic resin in the shape of a square bar, a square bar-like rubber material, wood, or the like. Further, the direction in which the partition member 5 is fixed is not limited at all, and it is possible to adopt a method such as a method of bonding and fixing using a sealing material, a method using an ALC screw, or a method using a vise. .

  As described above, a sufficient amount of fluid silicone rubber is poured into the portion partitioned by the partition material 5 and held for a predetermined time to solidify the silicone rubber, thereby forming the ALC panel A on the silicone rubber. The pattern formed by the grooves 1 and 2 is transferred and molded. Thereafter, the partition material 5 is removed, and the solidified silicon rubber is peeled off, whereby the mold material B can be manufactured.

  In the mold material B manufactured as described above, as shown in FIG. 3, the vertical protrusion 11 to which the vertical groove 1 of the ALC panel A is transferred, the horizontal protrusion 12 to which the horizontal groove 2 is transferred, and the flat surface to which the flat surface 3 is transferred. The surface 13 is stamped.

  Note that the material of the mold material B is not necessarily limited to silicon rubber, and mold making rubber (RV rubber) including urethane rubber can be used. The silicone rubber of this example is preferable because it has moderate flexibility and transparency, and is durable enough to be used repeatedly. Furthermore, the skin-like irregularities of the cut surface formed during the production of the ALC panel can be faithfully transferred, and the peelability from the cured repair material is good.

  Next, a repair procedure when a pattern is formed on the ALC panel will be described with reference to FIGS. In this example, an ALC panel having a pattern composed of vertical grooves 1 and horizontal grooves 2 on the surface, and a flat surface 3 that does not form a pattern is formed in an area defined by these grooves 1 and 2. A description will be given on the assumption that ALC panel A is already standing.

  As shown in FIG. 4A, a defect portion 20 where the ALC is peeled off is generated in a part of the lateral groove 2 constituting the pattern formed on the ALC panel A. First, as a result of confirming the depth of the defect portion 20, when the defect depth is about 5 mm or less, the periphery of the defect portion 20 is shaved so that the depth is 5 mm or more to form the filling path 21. At this time, one end of the filling path is formed on the flat surface 3 at a position deviating from the edge of the mold material B and without forming a pattern. Further, at a portion where the filling path 21 intersects the lateral groove 2, a sufficient depth (about 5 mm) is secured for the filling path 21 to circulate the repair material.

  Further, when the depth of the defect portion 20 is about 5 mm or more and has a sufficient depth, it is not necessary to reduce the depth of the defect portion 20 and a filling path 21 connected to the defect portion 20 is formed. Just do it.

  After forming the filling path 21 as described above, if the filling path 21 and the defect portion 20 remain, a primer is applied to the surface of the defect portion 20 and the filling path 21. In addition, when using what was described in patent document 1 as a repair material, the coating of a primer is unnecessary.

  Next, as shown in FIG. 2B, the mold material B is opposed to the section where the filling path 21 is formed and is brought into contact with the ALC panel A. At this time, a space is formed between the surface of the filling path 21 including the defective portion 20 formed in the ALC panel A and the surface facing the filling path 21 of the mold material B, and the space is filled with the repair material. Thus, it becomes possible to repair the target defect 20.

  A plurality of reinforcing materials 22 are arranged on the back surface of the mold material B in a state where the mold material B is brought into contact with the filling path 21 which is a portion to be repaired in the ALC panel A, and the ALC screw 23 is used. By fastening to the ALC panel A, the contact state of the mold material B with respect to the filling path 21 is maintained. At this time, one end of the filling path 21 protrudes from the edge of the mold material B, and this protruding portion becomes a filling port 21a into which the repair material is poured.

  When the mold material B is held on the surface of the ALC panel A by the reinforcing material 22, it is preferable that the filling state of the repair material into the filling path 21 can be visually recognized from the outside of the mold material B. For this reason, it is preferable to select a holding position of the mold material B by the reinforcing material 22 or to configure the reinforcing material 22 with a material having transparency.

  Next, as shown in FIG. 5 (a), the filling guide 24 is inserted into the filling port 21a of the filling path 21 formed on the ALC panel A, which is the edge of the mold material B, and is prepared with fluidity in advance. Pour the repair material 25 that has been left. The poured repair material 25 is filled from the filling port 21a through the filling path 21 to the site where the defect 20 is present. At this time, by applying a light impact to the mold material B, it is possible to prevent the air from being accumulated in the filling path 21 and realize good filling.

  When the filling state of the repair material 25 to the filling path 21 is visually confirmed from the outside of the mold material B and it is confirmed that the repair material 25 is sufficiently filled up to the filling port 21a, the filling of the repair material 25 is stopped. After the filling of the repairing material 25 into the filling path 21 is completed, the repairing material 25 is left as it is for a predetermined time, waits for the repairing material 25 to harden, and after it is sufficiently hardened, the mold material B is removed.

  When the repair material 25 is cured and the mold material B is removed from the surface of the ALC panel A, the repair material 25 remaining in the filling guide 24 becomes the upright material 25a standing from the surface of the ALC panel A. After the standing material 25a is roughly removed with a cutting tool, the defect 20 is repaired by finishing it smoothly with a sander or the like.

  In addition, when the standing material 25a is removed, if a dent is generated, it is possible to repair by applying the hardened repair material 25 with a hammer. In particular, since the filling port 21a of the repair material 25 is configured on the flat surface 3 that does not form a pattern, the repair can be easily performed. Further, since the fixing mark of the ALC screw is a hole of millimeter unit, it is sufficient to perform the repair according to the conventional repair method.

  In the above-described embodiment, the repair material is filled until the filling path is completely filled. However, when the repair material reaches near the lower end of the filling port 21a, the filling is temporarily stopped, and a separately prepared hardened repair material is filled in the filling port. The unfilled portion in the vicinity of 21a may be filled and finished smoothly with a hammer.

  In the above-described embodiment, the case where the ALC panel A stands up has been described. However, when the ALC panel is placed horizontally rather than attached to the housing, the filling path is provided with the thickness of the ALC panel. It is possible to fill the repair material from the back side by forming in the vertical direction. In this case, even when the hardened repair material remains on the back surface, it is possible to simply break off the hardened upright material to make the work simple. In this case, it is possible to form a filling path in the mold material, and it is possible to expand the options for repair work.

  In the above-described embodiment, the case where the pattern formed on the ALC panel A is configured by the grooves 1 and 2 has been described. However, the pattern is also formed in the area partitioned by the grooves. When this pattern is composed of discontinuous surfaces such as spar, the pattern is transferred in place of the flat surface 3 of the mold material B, and each groove 1, 2 is repaired. In a state where the entire surface of the region partitioned by is scraped, the mold material is opposed and held in contact, and then repaired by filling the repair material.

As shown in FIG. 1 (c), when the surface side of the ALC panel is almost machined and there is no flat surface that can form a filling port, and there is an upright state, the filling path is set to the thickness of the ALC panel. Preferably, the repair material is filled from the back side.

  In the repair method of the present invention, it is possible to repair easily and in a good state whatever the pattern formed on the ALC panel. For this reason, it is advantageous for repairing a defective portion generated when an ALC panel is used as an outer wall panel of a new building, or for repairing a defective portion generated when renovating an existing building.

It is a figure explaining the example of the pattern formed in the ALC panel. It is a figure explaining the example of the procedure at the time of manufacturing a mold material. It is a figure explaining the example of the mold material manufactured in the procedure of FIG. It is a figure explaining the procedure which attaches a mold material when repairing the defect | deletion part of an ALC panel. It is a figure explaining the procedure at the time of repairing by filling a defect | deletion part with a repair material.

A ALC panel B Mold material 1 Vertical groove 2 Horizontal groove 3 Flat surface 5 Partition material 11 Vertical protrusion 12 Horizontal protrusion 13 Flat surface 20 Defect 21 Filling path 21a Filling port 22 Reinforcement material 23 ALC screw 24 Filling guide 25 Repair material 25a Standing material

Claims (4)

A repair method for repairing a defective portion of a lightweight cellular concrete panel having a pattern of the same design formed by cutting the surface, the same as the pattern previously formed on the lightweight cellular concrete panel Prepare a mold material with the design pattern cast, and form a filling path to fill the repaired material in the pattern defect part in the lightweight cellular concrete panel, and make the mold material face the pattern defect part. Abutting and holding, filling the defect portion with the repair material via the filling path, and further repairing the defect portion by separating the mold material held in contact with the pattern defect portion. Repair method. The filling path is formed from a portion where no pattern is formed on the surface of the lightweight cellular concrete panel to a pattern defect portion or from the back surface of the lightweight cellular concrete panel to a pattern defect portion. The repair method described in 1. When the lightweight cellular concrete panel to be repaired is in an upright state, the filling path is connected to the upper end of the pattern defect, and the filling port of the repair material for the filling path is positioned higher than the upper end of the pattern defect. The repair method according to claim 1, wherein the repair method is formed. The repair method according to claim 1, wherein the mold material has transparency.

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