JP4248730B2 - A method of fixing a repair enclosure or a mounting bracket for fixing a repair enclosure to an ALC enclosure to be repaired - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is for refurbishment that is applied to the outer surface of an ALC enclosure to be repaired when the existing ALC enclosure made of ALC plates constituting the outer surface of a building deteriorates. The present invention relates to a method for fixing a mounting bracket for fixing an outer enclosure or a repair enclosure to an existing ALC enclosure itself.
[0002]
[Prior art]
The ALC board is lightweight and has excellent heat insulation and fire resistance, so it is widely used as an enclosure that forms the outer surface of buildings. When it deteriorates with rain, the rain surface will not be sufficient to the extent that the outer surface has been painted, so the outer surface must be extensively repaired.
[0003]
As a major repair method of the outer surface of the ALC enclosure, there is a method of fixing a new repair enclosure after removing the existing ALC enclosure, and an existing ALC enclosure. There is a method to fix the repair envelope to the outer surface of the existing ALC envelope without removing it. The former method needs to be cured at the time of construction and the removed ALC envelope is used as an industry. While the latter method must be disposed of as waste, the latter method does not require curing at the time of construction and can be easily operated, and it is not necessary to dispose of the existing ALC enclosure, so industrial waste The latter method is widely used because it does not require the removal of the existing ALC enclosure and does not require the cost of disposal and can be repaired economically.
[0004]
In this latter method, a repair enclosure such as an anchor or an anchor bolt is attached to a steel frame that passes through a hole drilled in an existing ALC enclosure and fixes the existing ALC enclosure. A method of fixing a tool and fixing the repair envelope directly or via a mounting bracket has been practiced.
[0005]
In other words, this conventional method is that the existing enclosure to be repaired is fixed on the outer surface and is made of an ALC plate, and its strength is low. Since the outer enclosure fixture cannot be directly fixed to the existing ALC enclosure itself, the outer enclosure fitting for repair such as an anchor or anchor bolt penetrates the existing ALC enclosure. Drilling holes and welding and screwing the repaired enclosure fittings such as anchors and anchor bolts that penetrate the drilled holes to the steel frame securing the existing ALC enclosure The work is not only complicated, but also requires a long time because it is limited in the position for fixing the repair enclosure fittings such as anchors and anchor bolts. It becomes work There was a problem point.
[0006]
[Problems to be solved by the invention]
The present invention solves the problems of the prior art described above, and when an existing ALC enclosure made of an ALC plate constituting the outer enclosure surface of a building has deteriorated, the ALC product to be repaired is required. Fix the existing outer enclosure made of ALC for fixing the outer casing for repair to be installed on the outer surface of the outer envelope or the mounting bracket for fixing the outer casing for repair. Fix the repair enclosure or the mounting bracket for fixing the repair enclosure to the ALC enclosure to be repaired by fixing it to the existing ALC enclosure itself, not to the existing steel frame It is an object of the present invention to provide a method for performing the above.
[0007]
[Means for Solving the Problems]
As a result of diligent research, the inventors of the present invention have made contact with the outer surface of the ALC envelope to be repaired in a state where the outer shell for repair or the mounting bracket for fixing the outer envelope for repair is in contact. After drilling a hole for a fixture with a predetermined diameter and depth in the ALC envelope to be repaired through the repair enclosure or mounting bracket, lithium hydroxide is contained in the fixture hole. After injecting an inorganic polymer matrix reinforcing material made of an aqueous solution of polysilicate to infiltrate around the hole for the fixture, the repair enclosure fitting made of a tapping screw is screwed into the hole for the fixture. The present invention was completed by investigating that the above problems could be solved by fixing the outer enclosure directly or the mounting bracket for fixing the outer enclosure to be repaired to the outer enclosure made of ALC. It was.
[0008]
Then, when the inorganic polymer base reinforcing material is injected from the deepest side of the fixture hole, the injected inorganic polymer base reinforcing material is sequentially filled from the deepest portion of the fixture hole to the inlet side. It was also found that the air inside the hole and the chips when drilling the hole for the fixture are pushed out to the inlet side, so that the inorganic polymer base reinforcement can be surely permeated around the hole for the fixture. It is.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a method for fixing a repair enclosure or a mounting bracket for fixing a repair envelope to an ALC enclosure to be repaired according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional explanatory view showing an embodiment of a state in which a siding material, which is a rehabilitation enclosure, is directly fixed by a rehabilitation enclosure fixture by implementing the method of the present invention, and FIG. A drilling hole was drilled in the ALC envelope to be repaired through the repair envelope that was in contact with the outer surface of the ALC envelope to be repaired. FIG. 3 is a sectional explanatory view showing the state, and FIG. 3 is a process following FIG. 2 in which the method of the present invention is carried out, and an inorganic polymer base reinforcing material is injected into the hole for the fixture and permeated around the hole for the fixture. FIG. 4 is a cross-sectional explanatory view showing the state, and FIG. 4 is a process subsequent to FIG. 3 in which the method of the present invention is carried out, and shows a state immediately before screwing the repairing enclosure fitting made of tapping screws into the fitting hole. FIG. 5 is a cross-sectional explanatory view, FIG. 5 shows a mounting bracket for fixing a repair enclosure fixed by carrying out the method of the present invention. Cross-sectional explanatory drawing which shows one Example of the state which fixed the folding plate which is a repair enclosure, FIG. 6 is a side view which shows one example of the injection tool for inject | pouring an inorganic polymer base material reinforcement material into the hole for fixtures It is explanatory drawing.
[0010]
In the drawings, reference numeral 1 denotes an ALC enclosure to be repaired which constitutes a roof surface or a wall surface of a building, and 2 denotes a repair enclosure 5 or repair to be described later on the outer surface of the ALC envelope 1 to be repaired. ALC exterior to be refurbished through the abutting repair enclosure 5 or mounting bracket 6 using a drill 7 in a state where the mounting bracket 6 for fixing the outer enclosure 5 is abutted It is a hole for a fixture having a predetermined diameter and depth formed in the enclosure 1. The predetermined diameter of the fixture hole 2 is a diameter smaller than the trough diameter of the screw portion of the tapping screw which is a later-described repair enclosure fixture 4 screwed into the fixture hole 2. Is larger than the valley diameter of the repair enclosure fixture 4, it cannot penetrate into the periphery of the fixture hole 2, and the unwrapped inorganic polymer base material reinforcing material 3 located in the fixture hole 2 is used for the repair envelope. This is because the body mounting tool 4 is screwed in, so that the pullout strength of the repairing outer body mounting tool 4 immediately after the screwing is lowered. Further, the predetermined depth of the fixture hole 2 is a threaded portion of a tapping screw that is a repair enclosure fixture 4 that does not penetrate the ALC enclosure 1 and is screwed into the fixture hole 2. The depth is slightly shorter than the length.
[0011]
3 is an inorganic polymer base reinforcing material made of an aqueous solution of polysilicate containing lithium hydroxide which penetrates into ALC and hardens with time, and is a hole for a fixture drilled in the ALC envelope 1 to be repaired. (2) By strengthening the surrounding substrate, the pulling strength of the repairing outer body fitting 4 made of a tapping screw described later is sufficiently increased.
[0012]
This inorganic polymer substrate reinforcing material 3 has a structure in which lithium hydroxide as an alkali and polysilicate in which silicon is bonded in a network via a hydroxyl group coexist, and the chemical formula is represented by Li ₂ O · xSiO ₂ . In other words, it is an aqueous solution of a polysilicate structure containing an alkali inside the network structure. This polysilicate structure has an extremely small particle size (slightly larger than ions and much smaller than a colloid) and low viscosity (for example, about 5 cps), and therefore has excellent permeability to concrete and mortar. Moreover, since alkali uses lithium having the smallest ionic radius among alkali metals, the permeability to concrete and mortar is very good.
[0013]
In addition, the inorganic polymer base reinforcing material 3, which is an aqueous solution of a polysilicate structure using lithium as an alkali, which is considered to have no concern about the alkali-aggregate reaction of concrete, which is a problem with sodium and potassium, is strong. It has the effect of improving the strength of the deteriorated concrete that has been neutralized by infiltrating into the concrete with alkali (pH about 11), but when the moisture evaporates and dries, it differs from the conventional polysilicate aqueous solution. To form a hard glassy solid that is sparingly soluble in water. As a result, the portion in which the inorganic polymer base reinforcing material 3 has penetrated and hardened into the concrete is greatly improved in strength, and has excellent wear resistance and weather resistance.
As this inorganic polymer base material reinforcing material 3, a trade name “Aisera ZOL-510” manufactured by Aicera Co., Ltd. can be preferably used.
[0014]
Mounting bracket for fixing the repairing enclosure 5 or the repairing enclosure 5 in a state where the inorganic polymer substrate reinforcing material 3 is in contact with the outer surface of the ALC enclosure 1 to be repaired. The operation of injecting into the fixture holes 2 from the 6 side and penetrating the periphery of the fixture holes 2 is performed.
[0015]
In this work, the inorganic polymer base material 3 is injected into the fixture hole 2 or inserted into the fixture hole 2 from the tip of the nozzle 8a inserted to the depth located at the substantially deepest portion of the fixture hole 2. It is possible to inject the inorganic polymer substrate reinforcing material 3 from the nozzle 8a at a relatively high pressure and inject the inorganic polymer substrate reinforcing material 3 from the deepest side of the fixture hole 2 to inject the injected inorganic polymer. Air in the fixture hole 2 and chips when the fixture hole 2 is drilled on the inlet side in the process in which the substrate reinforcing material 3 is sequentially filled from the deepest part of the fixture hole 2 to the inlet side. Since it extrudes, it is preferable that the inorganic polymer base reinforcing material 3 can be surely permeated around the hole 2 for the fixture. For example, the nozzle 8a and the inorganic polymer base reinforcing material 3 shown in FIG. The storage part 8b to be placed and the inorganic polymer substrate reinforcing material 3 stored in the storage part 8b It is possible to use a plastic injection tool 8 provided with a lever 8c for performing a pumping action so as to protrude from the rod 8a.
[0016]
Reference numeral 4 denotes a repair enclosure fixture made of a tapping screw that is screwed into the fixture hole 2 into which the inorganic polymer substrate reinforcing material 3 has permeated. In the present invention, the renovation enclosure attachment 4 must be made of a tapping screw. First, in the present invention, the refurbishment enclosure 5 or the renovation enclosure 5 is formed on the outer surface of the ALC enclosure 1 to be refurbished. In the state where the mounting bracket 6 for fixing is fixed, the drill 7 is used to contact the repair enclosure 5 or the ALC envelope 1 to be repaired through the mounting bracket 6. A hole 2 for the fixture is drilled, and then the outer enclosure fixture 4 for repair is screwed into the hole 2 for the fixture which is injected with the inorganic polymer base reinforcing material 3 and permeates the periphery thereof. The self-tapping inner surface of the fixture hole 2 into which the inorganic polymer substrate reinforcing material 3 has been injected and permeated therearound is self-tapping and the repair enclosure 5 positioned at the entrance of the fixture hole 2 or The diameter of the hole drilled in the mounting bracket 6 for fixing the repair enclosure 5 can also be increased. This is because shall.
[0017]
As the repair enclosure 5, various conventional repair enclosures can be used, for example, foaming between front and back surfaces formed of a metal plate or the like as shown in FIGS. A regular or long panel as commonly called a siding material filled with a filler such as synthetic resin or rock wool, or a folded plate obtained by simply bending a metal plate as shown in FIG. In addition, various types such as those obtained by laminating a foamed synthetic resin on the back side can be used.
[0018]
The embodiment shown in FIGS. 1 to 4 has male and female fitting portions 5b for fitting the repairing enclosures 5 and 5 adjacent to each other in the vertical direction on both upper and lower edges. One fitting portion 5b (in the illustrated embodiment, a male fitting portion 5b formed on the upper edge portion) forms a fixing portion 5a, and is attached by the repair enclosure fixture 4 In this embodiment, the repair enclosure 5 is directly fixed, and in the embodiment shown in FIG. 5, the mounting bracket 6 is fixed by the repair enclosure fixture 4, and the repair enclosure 5 is screwed to the mounting bracket 6. It is the aspect fixed by 5c.
[0019]
The mounting bracket 6 serves as a purlin material when the repair enclosure 5 is a roofing material, and as a trunk material when the repair enclosure 5 is a wall material. This is unnecessary when the repair enclosure 5 is directly fixed to the ALC enclosure 1 to be repaired.
[0020]
As the mounting bracket 6, for example, a long one having a cross-sectional hat shape as shown in FIG. 5 can be shown. In this case, the central groove-shaped bottom portion is formed on the outer surface of the ALC enclosure 1 to be repaired. The bottom portion is fixed to the ALC enclosure 1 by the refurbishment enclosure fixture 4 and a support portion 6b to which the rehabilitation enclosure 5 is fixed at both side flanges. And a fixing part that fixes the collars on both sides to the outer surface of the ALC envelope 1 to be repaired, and fixes the collars to the ALC envelope 1 by the repair enclosure fixture 4 6a and showing a mode in which a groove-like bottom between the flanges on both sides is positioned at a position away from the ALC enclosure 1 and a support 6b to which the repair enclosure 5 is fixed. it can.
[0021]
In order to carry out the method of fixing the repairing enclosure or the mounting bracket for fixing the repairing enclosure to the ALC envelope to be repaired according to the present invention, first, the inorganic polymer substrate as described above is reinforced. Material 3 is prepared.
The inorganic polymer substrate reinforcing material 3 is stored in the storage portion 8b of the plastic injection device 8 having the nozzle 8a, the lever 8c and the storage portion 8b. The nozzle 8a is preferably of such a length that its tip can be positioned at substantially the deepest part of the fixture hole 2, but the nozzle 8a is not melted by the nozzle 8a. When the injected inorganic polymer base material 3 reaches the deepest part of the mounting hole 2 when the pressure of the inorganic polymer base material 3 injected from the pressure is relatively high, the length of the nozzle 8a is It may be short.
[0022]
Next, in the case where the repair enclosure 5 is directly fixed at a predetermined position on the outer surface of the ALC enclosure 1 to be repaired, the fixing portion 5a of the repair envelope 5 is also repaired. When the body 5 is fixed through the mounting bracket 6, the repairing body 5 or the mounting bracket 6 is in contact with the fixing bracket 6 in a state where the mounting bracket 6 is fixed. A fitting hole 2 having a predetermined diameter and depth is formed in the ALC envelope 1 to be formed.
The hole 2 for the fixture has a diameter smaller than the root diameter of the screw portion of the repair enclosure fixture 4 made of a tapping screw to be screwed in, and is slightly larger than the length of the screw portion of the repair envelope fixture 4. Drilling with a drill 7 set to have a short depth is preferred.
[0023]
Thereafter, the inorganic polymer base material reinforcing material 3 is injected into the fixture hole 2, and this work is performed on the repairing envelope 5 which is in contact with the outer surface of the ALC envelope 1 to be repaired or After inserting the tip of the nozzle 8a of the injection tool 8 into the fixture hole 2 through the through hole drilled in the mounting bracket 6, the inorganic polymer substrate reinforcing material 3 is attached to the fixture 8 from the tip of the nozzle 8a. When injected into the hole 2 from the deepest part side, the inorganic polymer base reinforcing material 3 is filled with the air in the fitting hole 2 and the fitting part in the process of being sequentially filled from the deepest part of the fixture hole 2 to the inlet side. The inorganic polymer base reinforcing material 3 surely permeates the periphery of the fixture hole 2 because it is pushed out to the inlet side into which the swarf at the time of drilling the hole 2 is injected.
[0024]
The inorganic polymer substrate reinforcing material 3 injected into the fixture hole 2 penetrates the ALC from the inner wall of the fixture hole 2 and adheres to the cement or aggregate molecules of the ALC envelope 1. Then, as time passes, it dries and hardens, and the periphery of the attachment hole 2 is strengthened so as to sufficiently withstand the threaded engagement with the thread portion of the repair enclosure attachment 4 made of a tapping screw.
[0025]
For example, in the state in which the repair enclosure 5 or the mounting bracket 6 for fixing the repair enclosure 5 is brought into contact with the outer surface of the ALC enclosure 1 having a thickness of 100 mm to be repaired, For the fixture after drilling the fixture hole 2 having a diameter of 4.5 mm and a depth of 60 mm in the ALC envelope 1 to be repaired through the repair enclosure 5 or the fitting 6 in contact When the inorganic polymer substrate reinforcing material 3 made of the above-mentioned “ICERA ZOL-510” is injected into the hole 2 and 5 minutes have passed, the tip of the attachment hole 2 has a tapered length of 10 mm. Subsequently, it has a self-tapping screw part with a peak diameter of 8.0 mm, a valley diameter of 5.3 mm, a pitch of 4.85 mm, and a length of the same diameter part of 45 mm. The outer casing for repairing 4 is made of a tapping screw having a cylindrical part of 30 mm, and the outer part for repairing is screwed in. When the enclosure 5 is fixed directly to the ALC enclosure 1 to be repaired, the pullout strength after 24 hours is approximately 360 kgf, whereas the pullout strength when the inorganic polymer substrate reinforcing material 3 is not injected is Since there is only about 240 kgf, it turns out that implementation of the method of the present invention is sufficiently effective.
[0026]
Here, in the case where the outer envelope 5 for repair is directly fixed to the outer surface of the outer envelope 1 made of ALC by the outer envelope fitting 4 for repair, the above-described work may be normally performed sequentially from the lower side to the upper side. Further, when the repairing enclosure 5 is fixed via the mounting bracket 6, the above operation is repeated, and the mounting bracket 6 is fixed by the repairing enclosure mounting tool 4, and then attached to the support portion 6 b of the mounting bracket 6. The renovation enclosure 5 is fixed with screws 5c to construct the enclosure of the building.
[0027]
【The invention's effect】
As described in detail above, according to the present invention, the ALC enclosure to be refurbished, the method of fixing the rehabilitation enclosure or the mounting bracket for fixing the refurbishment enclosure, is the ALC enclosure to be refurbished. The repair enclosure or the mounting bracket for fixing the repair enclosure should be in contact with the outer surface of the body, and the repair should be made through the abutting repair enclosure or mounting bracket. After mounting a hole for a fixture of a predetermined diameter and depth in an ALC enclosure, an inorganic polymer base reinforcing material made of a polysilicate aqueous solution containing lithium hydroxide is injected into the fixture hole and attached. In order to fix the repairing enclosure directly or by fixing the repairing enclosure made of tapping screws into the mounting hole after penetration into the tooling hole. It is a method characterized by fixing the mounting bracket of the conventional, its strength If the tapping screw was screwed in directly because it was insufficient, the repair enclosure or the mounting bracket for fixing the repair enclosure could not be supported and fixed directly to the ALC enclosure. It is possible to support and fix the repair outer body or the mounting bracket for fixing the repair outer body by screwing in the tapping screw as the body mounting tool.
[0028]
And, since the ALC envelope to be refurbished is not removed to carry out the method of the present invention, it is not necessary to cure during construction, and it is not necessary to dispose of the industrial waste. In addition, the cost for removing the ALC envelope and the cost for disposing it are not required, and the ALC envelope can be repaired economically.
[0029]
In addition, when injecting the inorganic polymer base reinforcing material into the fixture hole, if the inorganic polymer base reinforcing material is injected from the deepest side of the fixture hole, the injected inorganic polymer base reinforcing material becomes the fixture hole. In order to push out the air in the hole for the fixture and the chips when drilling the hole for the fixture in the process of filling from the deepest part to the inlet side sequentially, the inorganic polymer base reinforcement is for the fixture It is possible to reliably penetrate the periphery of the hole and to reliably improve the strength around the hole for the fixture.
[0030]
Thus, the value which contributes to the construction field of the fixing method for fixing the outer envelope for repair or the outer envelope for repair to the ALC envelope to be repaired according to the present invention which exhibits various effects as described above Is a very big thing.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional view showing an embodiment of a state in which a siding material, which is a rehabilitation enclosure, is directly fixed by a rehabilitation enclosure fixture by implementing the method of the present invention.
FIG. 2 is a process of carrying out the method of the present invention, and drills into an ALC envelope to be repaired through a repair envelope brought into contact with the outer surface of the ALC envelope to be repaired. It is sectional explanatory drawing which shows the state which drilled the hole for fixtures.
FIG. 3 is an explanatory cross-sectional view showing a state in which an inorganic polymer base reinforcing material is injected into a fixture hole and permeated around the fixture hole in the process following FIG. It is.
FIG. 4 is a cross-sectional explanatory view showing a state immediately after screwing a repair enclosure fixture made of a tapping screw into a fixture hole in the process following FIG. 3 for carrying out the method of the present invention.
FIG. 5 is a cross-sectional explanatory view showing an embodiment in a state in which a folded plate as a repair enclosure is fixed to a mounting bracket for fixing the repair enclosure fixed by performing the method of the present invention. is there.
FIG. 6 is an explanatory side view showing an example of an injection tool for injecting an inorganic polymer base reinforcing material into a fitting hole.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Enclosure made from ALC to be refurbished 2 Hole for attachment 3 Inorganic polymer base reinforcement 4 Renovation enclosure attachment 5 Renovation enclosure
5a Fixed part
5b Mating part
5c Screw 6 Mounting bracket
6a Fixed part
6b Support 7 Drill 8 Injection tool
8a nozzle
8b Reservoir
8c lever

Claims (2)

In a state where the outer casing for repair (5) or the mounting bracket (6) for fixing the outer casing for repair (5) is in contact with the outer surface of the outer casing made of ALC to be repaired (1) A hole (2) for a fixture having a predetermined diameter and depth is drilled in the ALC enclosure (1) to be repaired through the abutting repair enclosure (5) or mounting bracket (6). After installation, an inorganic polymer base reinforcing material (3) made of a polysilicate aqueous solution containing lithium hydroxide is injected into the fixture hole (2) and permeated around the fixture hole (2). The rehabilitation enclosure (5) can be directly or directly refurbished by screwing a rehabilitation enclosure attachment (4) made of a tapping screw into the attachment hole (2). A method of fixing a repairing enclosure or a mounting bracket for fixing a repairing enclosure to an ALC enclosure to be repaired, characterized by fixing a mounting bracket (6) for fixing. The inorganic envelope for reinforcing the base material (3) is injected from the deepest side of the hole (2) for the fixture. Fixing the mounting bracket for fixing the.

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