KR101860761B1 - Method For Repairing On The Exterior Insulation and Finishing System - Google Patents

Method For Repairing On The Exterior Insulation and Finishing System Download PDF

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KR101860761B1
KR101860761B1 KR1020160021525A KR20160021525A KR101860761B1 KR 101860761 B1 KR101860761 B1 KR 101860761B1 KR 1020160021525 A KR1020160021525 A KR 1020160021525A KR 20160021525 A KR20160021525 A KR 20160021525A KR 101860761 B1 KR101860761 B1 KR 101860761B1
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South Korea
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weight
elastic
repairing
finishing
heat insulating
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KR1020160021525A
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Korean (ko)
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KR20170099313A (en
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강영환
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강영환
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0296Repairing or restoring facades
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762Exterior insulation of exterior walls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203Arrangements for filling cracks or cavities in building constructions
    • E04G23/0211Arrangements for filling cracks or cavities in building constructions using injection

Abstract

The present invention relates to a method of repairing an outer wall insulation finishing system, and more particularly, to a method of repairing an outer wall insulation finishing system by reinforcing a surface of a finishing material (14) And a plastic fastener anchor 30 having a diameter of 6 to 8 mm and a length of 90 to 180 mm depending on the thickness of the heat insulating material, the heat insulating material 12 being peeled from the structure 10, (22) having a diameter of 10 mm is bored at about 4 to 8 places per square meter on the surface of the fastener anchor construction site and the entire surface of the heat insulating material where cracks and entanglement have occurred, A step of injecting an elastic low foamed pu foam bond 23 into the injection port 22 and a step of injecting the remaining low foam pu foam 23 into the vicinity of the injection hole 22 after the injection of the foamed anchor 30 and the elastic low foamed pu foam bond 23. [ The injection port 22, A step of applying a resilient resin mortar to the fastener anchor construction site and a crack site and then impregnating the glass fiber mesh 25 with the one-component elastic resin mortar 24; The high elasticity modulus material is applied in a thickness of at least 0.5 mm to 1 mm in order to prevent unevenness on the surface of the undercoating material 21 and to maintain the elasticity even at a low temperature and to prevent cracking, A step of coating is carried out. The present invention can always maintain a pleasant and beautiful appearance by repairing damaged and excavated areas in order to prevent the risk of detachment of outer wall insulation due to water leakage and wind pressure and to improve waterproof performance.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for repairing an exterior wall insulation system,
More particularly, the present invention relates to repairing defects of a building exterior wall insulation system, and more particularly, by using an elastic pu (polyurethane) foam bond and a water-soluble elastic coating material to repair lifting and cracking of an outer wall insulation, The present invention relates to a method of repairing an outer wall insulation finishing system that can maintain a pleasant and beautiful appearance by always repairing a broken portion and a hilted portion in order to prevent the risk of the outer wall insulation being detached and damage and to improve waterproof performance.
As is known, the outer wall insulation finishing system is constructed by attaching a styrofoam thermal insulation material to the outer wall of a reinforced concrete or coarse wall structure, applying a glass fiber mesh to the surface of the reinforced concrete or coarse wall structure so as to impregnate the glass fiber mesh with a cementitious adhesive, It is the most common construction method that is currently used to finish the final use.
That is, as shown in the cross-sectional view of Fig. 1, in the construction of a general outer wall insulation finishing system, an acrylic resin emulsion (hereinafter referred to as " acrylic resin emulsion ") is applied to the inner surface of the styrofoam heat insulator 12, which has a width of approximately 600 mm and a height of 1200 mm And cement-based adhesive 15 mixed with Portland cement at a ratio of 1: 1 were applied to several places (6 to 8 places) at predetermined intervals as shown in Fig. 2 in the form of a lump having a size of about 100 mm , The building structure 10 is pressed and attached while adjusting the vertical and horizontal levels. At this time, a space of about 10 to 30 mm in thickness of the adhesive 15 is formed between the structural body 10 and the heat insulating material 12 in accordance with the flatness deviation of the surface of the building structural body 10.
In the next step, a cement-based adhesive 11 is applied to the outer surface of the heat insulating material 12 as a whole with a thickness of about 2 mm, and then a mesh 13 made of a glass fiber material is impregnated and cured. The thin wall-wall finishing material 14 of the acrylic public synthetic resin system is finally applied to the surface of the mesh 13 and cured, thereby completing the heat insulating material construction for the building structure 10. [
However, in the construction of the external wall thermal insulation finishing system as described above, the heat insulating material 12 and the outer wall surface are spaced by a thickness (about 10 to 30 mm) of the adhesive 15 in accordance with the deviation of the wall surface smoothness of the structure 10 This means that the heat insulating material 12 is adhered and cured by the adhesive 15 in the form of a peeled sheet without a separate fixing mechanism. 15 have been separated from the structure 10.
The above-mentioned problems are explained in more detail. Due to the contraction and expansion due to changes in wind pressure and temperature, the use of immature insulator, adhesion failure due to foreign substances on the wall, etc., The heat insulating material 12 begins to peel off from the wall of the reinforced glass fiber and the entire wall surface subjected to the heat insulation is repetitively moved due to the wind pressure so that the reinforcing glass fiber and the surface of the finish material are partially cracked.
Therefore, when the heat insulating material 12 is peeled 17 from the structure 10 as shown in FIG. 3 and cracks 16 are generated in the wall as shown in the example of FIGS. 4A and 4B, And the appearance is also dirty. As a result of strong winds or the like, the heat insulation material is detached as shown in the example of FIG. 5, which can cause serious damage to human life and property.
If the heat insulating material is cracked or removed, the conventional method of repairing the external wall thermal insulation finishing system may include a plastic cap having a thickness of about 1 mm and a diameter of about 60 mm as exemplified in FIG. 6A in order to prevent the heat insulating material from falling off the outer wall A thickness of 8 mm, and a length of 110 mm to 160 mm. The surface of the plastic anchor is mounted on the outer wall of the building so as to be fixed to the outer wall of the building, and the surface thereof is covered with a thin wall- , And repair was carried out by applying a general coating using a silicone or oily type elastic coating on the cracked portion. For this purpose, Korean Patent Registration No. 10-1195345 (name: a fastener for fixing a wall for insulation) and Korean Patent Registration No. 10-1575239 (name: a structure for fixing a building insulation and a construction method thereof) are proposed have.
The method of repairing the heat insulating material using the fastener anchor is similar to the example of FIGS. 7A and 7B, because the time of the fastener anchor installation time of the wall surface after the heat insulation repair is not long and the cracks around the fastener anchor and the re- There is a problem that the leakage of water is caused again and the appearance is still exposed in an unsightly manner.
Korea Patent Registration No. 10-1195345 (Date of Notification: Oct. 29, 2012) Korean Registered Patent No. 10-1575239 (Published on Dec. 07, 2015)
SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional repair method as described above, and it is an object of the present invention to minimize the repair marks on the finished surface after rigid fixation and crack repair of the hermetic insulating material, The present invention also provides a method of repairing an exterior wall of a building, which maintains a maintenance state and maintains durability and heat insulation performance.
According to another aspect of the present invention, there is provided a method of repairing an exterior wall finishing system comprising a building structure, a glass fiber mesh, and an acrylic wall finish finishing material sequentially attached to and applied to a building structure, A step of applying a primer applied to reinforce the surface and ensure adhesion with a subsequent coating agent; A fastener anchor construction step of fixing the heat insulating material peeled from the structure to the structure as much as possible; Burying a predetermined number of injection holes (4 to 8 places per square meter) for injecting the elastic low foamed pu foam into the fastener anchoring portion and the cracked portion; Injecting an elastic low foamed pu foam bond into the perforated injection port; A surface treatment step of removing the cured elastic low foamed pu foam bond and the remnants pushed to the injection port, filling the injection port with the one-part elastic adhesive mortar, and smoothing the periphery of the injection port; A crack preventing and repairing step of impregnating the fastener anchor construction part and the crack part with glass fiber with an elastic resin mortar; A step of applying a high elasticity moderate material to prevent cracks and leakage on the entire surface to which the crack-preventing and repairing process is applied and the undercoating material is applied; The present invention provides a method for reinforcing adhesion and cracking and repairing a leaked portion of a building, which comprises applying a topcoat to protect a core material and protecting an outer surface of the building,
The undercoating material may be a mixture of 10-18% by weight of emulsion, 0.5-2.5% by weight of ethylene glycol 1-2% by weight of wetting agent, 2-5% by weight of water and the balance aqueous solution or 70-80% by weight of xylene, 20 to 30% by weight of a polyolefin resin.
The elastic low foamed pu foam bond uses a polyurethane based adhesive and is composed of 10 to 15% by weight of butane, 8 to 12% by weight of methylenebisphenylisocyanate, 6 to 10% by weight of dimethyl ether, 8 to 10% By weight, 35 to 45% by weight of a polyol, and 12 to 15% by weight of a curing agent.
The curing agent may be prepared by mixing 5 to 10 wt% of bis (P-isocyanatophenyl) methane, 60 to 70 wt% of polypropylene, 1 to 5 wt% of a curing accelerator, and 5 to 20 wt% Prepolymer) is formed.
Wherein the one-pack type resilient adhesive mortar comprises 13 to 25% by weight of an acrylic emulsion, 5 to 10% by weight of a silicone resin, 0.5 to 3% by weight of sodium silicate, 60 to 72% by weight of zirconium, 1 to 5% by weight of acrylic fiber, Wherein the resin mixture comprises 0.5 to 0.8% by weight of an antifoaming agent, 0.3 to 0.8% by weight of an antifoaming agent, 0.3 to 0.8% by weight of ethylene glycol, 0.3 to 0.8% by weight of a dispersant, 5 to 10% by weight of calcium carbonate and 1 to 5% Treatment and crack repairing steps.
Also, the high elasticity coating material as the intermediate material is a composition of 12 to 38% by weight of emulsion, 1 to 5% by weight of titanium oxide, 50 to 60% by weight of calcium carbonate and 1 to 3% by weight of ethylene glycol, There are features.
Further, the high-elasticity coating material as the intermediate material is characterized in that it is applied to the entire wall surface coated with the undercoating material to a minimum thickness of 0.5 mm to 1 mm in order to maintain the elasticity even at a low temperature.
The topsheet material may also comprise 12 to 18 weight percent titanium dioxide, 1-3 weight percent trimethyl-1.3-pentanediol isobutyrate, 2 to 5 weight percent ethylene glycol, 10 to 20% by weight of calcium carbonate, and 55 to 65% by weight of an emulsion. The coating thickness is preferably 2 to 3 times to obtain a coating film thickness of 40 탆 or more.
The following effects can be expected by the method of reinforcing cracked insulation and repairing cracks in the outer wall thermal insulation finishing system according to the present invention.
First, the punching cracks generated around the fastener anchor construction by using the fastener anchor construction and the elastic low foamed pu foam bond in parallel with the adhesive fixation of the peeled insulation at the time of reinforcing, cracking and repairing of the leaky insulation of the outer wall insulation finishing system It does not happen.
Second, the gap between the structure wall and the insulation is expanded to 4 ~ 8 places per square meter (injection of 20 - 30ml per site) with elastic low foamed pu foam bond. Space filling of insulation wrapped with moderate foam expansion and firm adhesion at the same time It is possible to prevent the insulation from falling off even in strong winds.
Third, by performing maintenance work on the finishing surface of the outer wall insulation finishing system with the one-component elastic adhesive mortar specially blended to the injection hole and the fastener anchor installation part and the crack part for the injection of the elastic low foamed pu foam bond, Elastic coating material which is similar to acrylic plaster which is similar to acrylic plaster and has elasticity of high elasticity is applied to absorb the behavior of material due to changes in external environment and suppress cracking of finishing surface of joint part of insulation or exterior wall finishing system You can maintain a beautiful appearance.
Fourth, from the long-term perspective, it is superior in durability compared with the repair method of the conventional outer wall insulation finishing system.
1 is a cross-sectional view of a typical exterior wall insulation system;
FIG. 2 is an exemplary view of a method of applying an adhesive to a heat insulating material in FIG. 1;
Fig. 3 is a sectional view of the system of Fig. 1 when lifting and cracking occur. Fig.
FIGS. 4A and 4B are exemplary views of an outer wall state at the time of cracking as shown in FIG. 3;
Figs. 5A and 5B are views showing an example of a state in which the heat insulating material is removed when the floating occurs as shown in Fig. 3; Fig.
6A and 6B are views showing an example of a fastener anchor and its construction, respectively.
7A and 7B are diagrams showing examples of the outer wall condition of the occurrence of cracks at the portion after the conventional fastener anchor application.
8A and 8B are cross-sectional views of a wall constructed in accordance with the method of the present invention;
Figure 9 is an illustration of an adhesive side of an elastic low foamed pu adhesive bond injected in the present invention.
10 is a flowchart of a maintenance method according to the present invention;
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. The embodiments of the present invention will be described in detail with reference to specific embodiments. However, in the following description of the embodiments, the description of the common parts will be replaced with the previously described parts, So that duplication of unnecessary description is avoided.
Upon completion of the new construction, an adhesive (15) obtained by mixing 1: 1 acrylic resin liquid adhesive and cement on a heat insulating plate (12) having a width of 1200 mm and a length of 600 mm (thickness: about 50 to 150 mm) 6 to 8 lumps having a diameter of about 100 mm are adhered to a wall surface and the glass fiber mesh 13 is attached to the heat insulating material 12 using the adhesive 15 as a stiffener. In this case, the adhesive thickness of the adhesive is 2 to 3 mm And the glass fiber mesh 13 is coated flatly so as to be impregnated. The thin wall finish 14 on the adhesive will have a finished finish construction.
As described above, a structure in which a heat insulating adhesive 15, a heat insulating material 12, a mesh impregnating adhesive 11, a standard glass fiber mesh 13, and a thin wall finish 14 are sequentially installed on the structure 10 is referred to as an outer wall thermal insulation finishing system (Aka: dry bit system).
However, due to the wind pressure and the temperature change over time, the outer wall insulation finishing system has a problem that the cracks 16 and the adhesive 15 attaching the heat insulating material 12 to the structure 10 So that the peeling portion 17 to be peeled from the structure 10 is generated.
The present invention relates to a heat insulation material for an outer wall heat insulation finishing system which can prevent precious life and property loss due to cracking and detachment of a heat insulation material generated in an outer wall heat insulation finishing system by using an elastic low foamed pu foam bond and a water- Removal, cracking, leakage, and the like, and is carried out by a process as shown in the flowchart of FIG.
The repairing method according to the present invention is a method for applying a primer coating 21 for applying a primer material 21 on the surface of the finishing material 14 in order to strengthen the surface of the finishing material 14 which is the outer wall insulation finishing layer and secure the adhesion with the subsequent coating material And a plastic fastener anchor 30 having a diameter of 6 to 8 mm and a length of 90 to 180 mm depending on the thickness of the heat insulating material to be adhered and fixed to the structure 10 as much as possible, An anchor construction step and an injection hole 22 having a diameter of 10 mm are bored at about 4 to 8 places per square meter on the entire surface of the insulating material where the fastener anchor construction site and cracks and entanglement have been generated and then the flexible low foamed pu foam A step of injecting the bond 23 and a step of removing the residue pushed around the injection port 22 after the injection of the foamed anchor 30 and the elastic low foamed pu foam bond 23, The surface elasticity of the liquid type elastic adhesive mortar (24) Step and prevent cracking of impregnating a glass fiber mesh (13) to said anchor fastener construction site and the cracks of a resilient adhesive mortar or repair step; Applying a high-elastic cementitious material (32) which is subjected to the crack prevention and repairing process and cracks and leaks on the entire surface to which the underlayment material is applied; A step of finally applying the topsheet material 26 to protect the core material and protect the outer surface is performed.
In the case where the heat-insulating material of the existing wall is partially lifted but the heat-insulating material does not rise bulging and cracks of the finish surface due to the fracture of the heat insulating material are accompanied by cracking, As described above, the elastic low foamed pu foam bond 23 is injected into the open space of the existing wall and is coated on the surface of the finishing material 14 of the existing wall, the glass material having a width of about 50 to 100 mm A single-component elastic adhesive mortar 24 is applied to the fiber mesh 25 to impregnate the mesh and the high elasticity modulus material 32 is applied to the entire surface to which the undergarment 21 is applied, And a top coating material 26 which is finally coated.
In addition, as shown in the cross-sectional view of FIG. 8B, when the heat-insulating material of the existing wall is repaired and the wall bulges and bulges out of the wall, the wall material repaired by the method according to the present invention is heated by using the fastener anchor 30, Foamed pu foam bond 23 is injected into a site where the glass fiber mesh 13 is adhered and fixed to the structure 10 and the glass fiber mesh 13 ) Is applied so as to be impregnated, and the intermediate member 32 and the upper member 26 are sequentially formed.
The repair method according to the present invention will be described in detail below.
 The foreign matter on the surface of the outer wall is removed and the applying step of the undercoat material 21 is performed before the lifting and cracking of the outer wall insulation finishing system is repaired.
The applying step 21 is a step of applying 10 to 18% by weight of the emulsion, 1 to 2% by weight of the ethylene glycol, 0.5 to 1.5% by weight of the wetting agent, and the remainder Is applied as a primer (21).
When the surface of the finishing material 14 is poor and peeling is peeled off, the composition of the undercoating material 21 is preferably 70 to 80% by weight of xylene, 20 to 20% by weight of polyolefin resin, 30% by weight. At this time, the xylene is used as a reactive organic solvent with the polyolefin resin, thereby stabilizing the polyolefin resin and improving the adhesive strength.
If the heat insulating material 12 is peeled off and the heat insulating material 12 is widely spread from the structure 10, the heat insulating material 12 is removed by using the fastener anchor 30, After the process of tightly fixing to the side of the structure 10 is performed, the process proceeds to the step of injecting the highly adhesive elastic pu foam bond 23.
The fastener anchor 30 is constructed in such a way that when the heat insulating material 12 is peeled off from the structure 10 and there is a bulging portion or a dull and shaky portion, the fastening anchor wall 30 is used for the fastening anchor 30 to the structure 10 The fastener anchor 30 is formed to have a diameter of 6 to 8 mm and a length of 50 to 60 mm longer than the thickness of the heat insulator so that the fastener anchor 30 is at least 40 to 50 mm Select what can be inserted. In the construction of the fastener anchor 30, it is preferable to apply 1 to 3 places per square meter where suspending of the heat insulating material 12 is suspected.
The reason for carrying out the construction of the fastener anchor 30 before the adhesive is injected into the inner space of the heat insulating material 12 in which peeling is caused is that when the heat insulating material 12 is peeled and the space is wide, elastic low foamed pu foam bond 23 can be made to flow downward when injected and the fastening phenomenon of the pu foam bond 23 progresses to harden the heat insulating material 12 in a bulging state or a bulging state so that the fastener anchor 30 This is because it is safe to inject after inserting the surface of the heat insulating material 12 in advance so as to be flat.
On the other hand, if the adhesive 15 of the heat insulating material 12 is removed from the structure 10 in the above process but the heat insulating material 12 is not burnt and the entire surface is flat, if the heat insulating material is partially removed, The process proceeds to the injection step of the pu foam bond 23 without proceeding to the post-fastener anchor 30 construction process.
The elastic low foamed pu foam bond 23 is injected in order to prevent cracking of the anchor portion due to the application of the fastener anchor 30 and to repair cracking and lifting of the heat insulating material 14, Foamed pu foam bond 23 is injected into the injection port 22 at a rate of about 20 to 30 ml per injection port 22 by piercing the injection port 22 of the injection port 22 at a rate of about 5 to 8 per m 2. do.
 The elastic low foamed pu foam bond 23 is a polyurethane adhesive having a composition of 10 to 15% by weight of butane, 8 to 12% by weight of methylenebisphenylisocyanate, 6 to 10% by weight of dimethyl ether, Wherein the curing agent is a mixture of 5 to 10 wt% of bis (P-isocyanatophenyl) methane, 60 to 70 wt% of a polyol, 1 to 5% by weight of a curing accelerator, and 5 to 20% by weight of a flame retardant are mixed to prepare a prepolymer.
At this time, the injected elastic low foamed pu foam bond 23 is foamed to a diameter of about 200 to 300 mm according to the space between the structure 10 and the heat insulating material 12, and an adhesive group is formed as shown in the example of FIG.
Also, the gap between the heat insulating material and the heat insulating material due to the shrinkage of the heat insulating material is also injected so that the elastic low foamed pu foam bond 23 is filled along the cracked part. At this time, the high elastic foam foamed poum 23, And the occurrence of crack recurrence is suppressed due to the elasticity.
That is, the importance of the elastic low foamed pu foam bond 23 used in the lifting and crack repairing step of the heat insulating material 12 of the external wall thermal insulation finishing system as described above is made by a special adhesive for thermal insulation unlike the general filling pu foam, The heat insulating material 12 is firmly attached to the structure 10 with a strong adhesive force at the same time as filling the space between the structure body 10 and the heat insulating material 12 without the phenomenon that the wall due to the foaming occurs.
When the adhesive injection step is completed, the process proceeds to the surface treatment step.
In the surface treatment step, after the injection of the elastic low foamed pu foam bond 23 and the fixed part of the fastener anchor 30, the residue of the pu foam bond 23 pushed around the injection port 22 is removed, The process of filling with the liquid type elastic adhesive mortar 24 is carried out.
When the surface treatment step is completed, the one-part elastic adhesive mortar 24 is applied to the fastener anchor construction part and the cracked part, and then the glass fiber mesh 25 is impregnated.
The one-pack type resilient adhesive mortar 24 comprises 13 to 25% by weight of an acrylic emulsion, 5 to 10% by weight of a silicone resin, 0.5 to 3% by weight of sodium silicate, 60 to 72% by weight of silicate, 1 to 5% 0.3 to 0.8% by weight of a plasticizer, 0.3 to 0.8% by weight of an antifoaming agent, 0.3 to 0.8% by weight of ethylene glycol, 0.3 to 0.8% by weight of a dispersant, 5 to 10% by weight of calcium carbonate and 1 to 5%
When the one-pack elastic resin mortar 24 is applied to the fastener anchor 30 and the cracked portion and the process of impregnating the glass fiber mesh 25 is completed, The application of the high elastic modulus material 32 is carried out at a minimum thickness of 0.5 mm to 1 mm so as to maintain the elasticity.
Also, the high elasticity modifier 32 is a composition comprising 12 to 38% by weight of emulsion, 1 to 5% by weight of titanium oxide, 50 to 60% by weight of calcium carbonate and 1 to 3% by weight of ethylene glycol, It is used as a high-elasticity coating material.
As a final step, a top coat 26 coating step is performed to finish the outer wall surface by water repellent or repair coating.
It is preferable that the topsheet material 26 is coated 2 to 3 times to form a waterproof layer or a protective layer having elasticity, and the thickness of the coating film is preferably 40 占 퐉 or more so as to minimize lifting or peeling and maintain sufficient elasticity.
The topsheet 26 may comprise 12 to 18 weight percent of titanium dioxide, 1 to 3 weight percent of trimethyl-2,4-pentanediol isobutyrate, 1 to 3 weight percent of ethylene glycol 2 to 5% by weight of ethylene glycol, 10 to 20% by weight of calcium carbonate and 55 to 65% by weight of an emulsion. The mixture is used as a waterproof or repairing agent.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.
10: Structure 11, 15: Adhesive (cement)
12: Insulation material 13, 25: Glass fiber mesh
14: Finishing material 16: Crack region
17: adhesive dropout area 21:
22: Inlet 23: Elastic low-foaming pu foam bond
24: One-pack type elastic adhesive mortar 26:
30: Fastener anchor 32: High elasticity moderate material

Claims (7)

  1. A method of repairing an outer wall thermal insulation finishing system in which an insulating material, a glass fiber mesh, and a wall-covering finish are sequentially attached to and applied to a building structure,
    Applying the undercoating material to reinforce the outer surface of the finishing material and to secure adhesion of the subsequent coating material;
    A fastener anchor construction step of firmly adhering and fixing the heat insulating material peeled from the building structure to the building structure as much as possible;
    Burying a predetermined number of injection holes (5 to 8 places per square meter) for injection of the elastic low foamed pu foam bond at the cracked site, and injecting the elastic low foamed pu foam bond into the pierced injection hole;
    A surface treatment step of removing the cured elastic low foamed pu foam bond and the residue around the injection port, filling the injection port with the one-part elastic adhesive mortar, and smoothing the periphery of the injection port,
    A crack preventing and repairing step of applying an elastic adhesive mortar to the injection port construction site and the crack site and impregnating glass fiber;
    Applying a surface high-elasticity modulus material to the surface of the undercoat material on which the crack repairing process has been performed to overcome uneven discrepancies and prevent cracking;
    And finally applying a waterproof elastomeric coating material for protecting the middle layer to the surface of the high-elastic intermediate layer on which the anti-crack process has been performed,
    The high-resilience elastic low foamed pu foam bond may comprise 10 to 15% by weight of butane, 8 to 12% by weight of methylenebisphenylisocyanate, 6 to 10% by weight of dimethyl ether, 8 to 10% by weight of propylene, To 45% by weight of a curing agent and 12 to 15% by weight of a curing agent. The method for repairing an exterior wall finishing system for repairing cracks and leakage areas of an adhesive agent for reinforcing a cracked insulating material of an outer wall.
  2. delete
  3. The method according to claim 1,
    The above-
    A mixture of 10 to 18% by weight of emulsion, 1 to 2% by weight of ethylene glycol, 0.5 to 1.5% by weight of wetting agent, 2 to 5% by weight of water and the balance aqueous solution or 70 to 80% by weight of xylene, a polyolefin resin ) 20 to 30% by weight of the composition.
  4. The method according to claim 1,
    The one-pack type elastic adhesive mortar is characterized in that,
    Acrylic acid emulsion of 13 to 25 wt%, silicone resin of 5 to 10 wt%, sodium silicate of 0.5 to 3 wt%, zirconium of 60 to 72 wt%, acrylic fiber of 1 to 5 wt%, plasticizer of 0.3 to 0.8 wt% Wherein the resin mixture is a resin mixture of 0.5 to 0.8 wt% ethylene glycol, 0.3 to 0.8 wt% of a dispersant, 0.3 to 0.8 wt% of a dispersant, 5 to 10 wt% of calcium carbonate, and 1 to 5 wt% of water.
  5. The method according to claim 1,
    The high-
    Characterized in that an elastic coating material is used for preventing cracks as a composition comprising 12 to 38% by weight of emulsion, 1 to 5% by weight of titanium oxide, 50 to 60% by weight of calcium carbonate and 1 to 3% by weight of ethylene glycol Repair method of insulation finishing system.
  6. 6. The method according to claim 1 or 5,
    The high-
    Characterized in that it is applied to the exterior finish surface of the building with a minimum thickness of 0.5 mm to 1 mm in order to overcome the unevenness of the crack repair surface and to maintain the elasticity even at low temperature.
  7. The method according to claim 1,
    The top-
    12 to 18% by weight of titanium dioxide, 1 to 3% by weight of trimethyl-2,4-pentanediol isobutyrate, 2 to 5% by weight of ethylene glycol, (10 to 20% by weight of calcium carbonate and 55 to 65% by weight of an emulsion) is applied two to three times so as to have a coating film thickness of 40 탆 or more. How to repair the finishing system.
KR1020160021525A 2016-02-23 2016-02-23 Method For Repairing On The Exterior Insulation and Finishing System KR101860761B1 (en)

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KR101876136B1 (en) * 2017-09-26 2018-07-06 문정오 waterproof structure for exposed type heat shielding and insulating, construction method thereof
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