KR101884896B1 - Multi Coating Waterproof YPS-Layer and the YPS-method - Google Patents

Abstract

The present invention has objectives of maximizing insulation while maintaining waterproof performance with respect to a building so as to prevent the deterioration phenomena such as scaling and spalling, which have conventionally occurred by temperature difference in the waterproof layer provided to a building, and subsidiarily providing insulation to the building itself so as to satisfy both the waterproof property and the heat insulation property. To this end, the present invention includes a structure having a sheet layer formed by primarily and secondarily laying insulating sheets on a base surface, and a coating layer (20) formed by applying a coating material of a predetermined thickness to the sheet layer, wherein the sheet layer includes: a primary sheet layer formed by laying the insulating sheets (10) in a but joint manner; and a double crossing installation type sheet layer formed by laying the insulating sheets (10) such that the connection portion that is the joint portion of the primary sheet layer is located in the center of the double crossing installation type sheet layer, the insulating sheet (10) includes: a substrate part (12) formed of foamed polyethylene; a reinforcing part (14) formed at one end of the substrate part (12) so as to improve the durability of the substrate part (12); and an adhesive part (16) formed at the other end of the substrate part (12) so as to allow the sheets to be adhered itself, and the reinforcing part (14) includes a joint reinforcing wing (14a) extended by a predetermined length from one end or each of the both ends of the substrate part (12) so as to improve the binding force of the joint portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a YPS (Multi-Coating Waterproof)

The present invention relates to a triple composite waterproofing structure and a triple composite waterproofing method for improving heat insulation through double crossing and waterproofing of a heat insulating sheet. More particularly, the present invention relates to a three- The present invention is applied to a building waterproofing method to maximize the heat insulation property while maintaining the waterproof performance of the building so as to prevent deterioration such as peeling and peeling due to the temperature difference in the waterproof layer applied to the building, To a YPS structure that improves insulation through double layer cross-over installation of a heat insulating sheet adopting a hybrid type waterproofing structure and waterproofing of a coating film so as to satisfy both waterproof and heat insulating properties, and a YPS method.

In general, concrete structures such as roof slabs, specific gravity, basement of a building or various fluid storage tanks are weak in waterproofing property, so rainwater or groundwater can permeate, thereby deteriorating the self-bonding force of the concrete structure, The cracks in the concrete caused by the volume change of the water caused the shortening of the life of the concrete structure.

Therefore, waterproofing works to prevent moisture such as rainwater or groundwater from flowing through cracks in concrete is very important in concrete structures.

The permeable waterproofing method is a method in which the waterproofing material is applied to the surface of the concrete to densely change the concrete itself to have a waterproof performance, and the waterproofing of the concrete waterproofing method The method is a method to cope with cracks of concrete structures or construction defects of other buildings by forming multiple layers of impervious waterproof layer inside and outside of the structure.

In addition, the coating type waterproofing method is divided into asphalt waterproofing, sheet waterproofing and waterproofing of the film according to the kind and the method of making the impermeable film. The waterproofing of the film is performed by forming a primer layer on the base surface, , It is usually constructed with a thickness of 3 to 6 mm so that the entire waterproof layer can be integrated without the connection part of the waterproofing material.

The coating film waterproofing method is advantageous in that it is easy to work and has a simple construction. However, in order to achieve a uniform thickness, smoothness of the base surface is required. In addition, In the case of the waterproofing material, since the required performance can be exhibited only when an accurate blending ratio is established, there is a problem that work must be performed by a highly skilled person.

Subsequently, the asphalt waterproofing method is mainly used for roofs, basements, reservoirs, and indoor waterproofing. The asphalt primer is applied by brushing or spraying after the structure is dried, and the asphalt is melted to form a waterproof layer having a predetermined thickness It is a public law.

The sheet waterproofing method is a waterproofing method in which a waterproof sheet made of synthetic rubber, synthetic resin, or the like and having a predetermined thickness is attached with an adhesive.

The sheet waterproofing method is suitable for a wide area construction, has good stretchability and is responsive to cracking of a concrete structure and has an advantage that it is easy to work.

However, in the conventional sheet waterproofing method, due to the limitation of the size of the standardized sheet having a predetermined length and width, a large number of sheets are formed according to the size of the ground surface, and a joint is formed between the plurality of sheets, There is a problem that the watertightness such as water vapor is discharged or the water penetrates into the outside through the joint is lowered and the waterproof performance is deteriorated.

Recently, a composite waterproofing method in which a coating film type and a sheet type are combined is applied. An example of such a conventional waterproofing method is as follows. As shown in FIGS. 1 and 2, 2b are overlapped with each other with a predetermined width, and then the overlapping joint portions A are thermally welded to each other.

That is, the sheet waterproofing method is a method in which a predetermined adhesive is applied to the base surface 3 in whole or in part to form a first adhesive layer 4, and one waterproof sheet 2a is bonded to the first adhesive layer 4 And another waterproof sheet 2b is adhered and fixed so as to overlap the waterproof sheet 2a with a predetermined width.

The overlapped portions A of the first and second waterproof sheets 2a and 2b are melted with heat and then pressed by a roller so as to be integrated with each other.

Waterproof performance is exhibited by a complex waterproof structure in which a coating film waterproofing material is applied to the upper surface of the overlapped waterproof sheets 2a and 2b to a certain thickness to form the waterproof film layer 5.

However, the conventional composite waterproofing method has the following problems.

There is a problem in that the process of joining the joint portion (A) between adjacent waterproof sheets is complicated, and defects such as cracks often occur at joint portions.

That is, when joining joints between neighboring waterproof sheets, the workability is further deteriorated by a work process in which an end portion of a neighboring waterproof sheet is overlapped with a predetermined length and bonded with an adhesive, an adhesive tape, or melted with heat and fused.

In addition, there is a problem that a level difference is generated in the overlapping joint portion, and the smoothness of the waterproof layer can not be maintained.

In addition, since the coating amount of the coating film waterproofing material applied on the waterproof sheet is increased more than necessary due to the stepped portion of the overlapping joint, there is a problem that the cost of the coating increases.

Further, as shown in FIG. 2, since the thickness of the coating film waterproofing material is relatively thin in the overlapping joint part, the coating film waterproofing material is easily damaged or broken by the influence of the outside, thereby shortening the service life.

Taken together, in the case of a conventional composite waterproofing system in which sheet waterproofing and film waterproofing are performed in parallel, when a single sheet layer is formed and then formed into a coating layer, the coating layer is relatively uneven due to the above- As it is thinly coated, it is easily lifted.

Further, the sheet layer is laid on the base surface as a single sheet, and the joint portion of the sheets is configured to be overlapped with a certain thickness. In this case, a thickness difference occurs between the seat portion and the joint portion, There is a problem that frequent flooding occurs due to frequent occurrence of water vapor due to unbalanced temperature difference.

In addition, there is a problem that the overlapping portion of the sheet portion having a width of a certain width of about 100 to 200 mm is formed, and the inflow of moisture through such a short overlapping portion is smoothly performed to deteriorate the waterproof performance.

In addition, since the conventional coating film waterproofing material contains volatile organic compounds (VOCs), there is a problem in that it can cause an injury to an operator as well as an environmental problem.

On the other hand, insulation is applied to the interior or exterior of the building to provide heat insulation, and the construction of the interior of the building is referred to as an insulation construction and the construction of the exterior is referred to as an external insulation construction.

In this case, in the case of the inner heat insulation, a non-heating section is inevitably generated by a beam or a column in the ceiling, thereby deteriorating the heat insulating performance.

In addition, in the case of the external heat, since the heat insulating layer is formed on the entire outer wall of the building, a non-heating period is not generated like the above-mentioned internal heat and the heat insulating performance is superior to the internal heat.

However, in the case of external heat, a waterproof layer for satisfying the waterproof performance is formed on the heat insulating layer installed outside the building. However, as described above, when leakage occurs due to various reasons such as environmental requirement or poor construction in the waterproof layer If the water penetrates into the heat insulating layer through the waterproof layer, the heat insulating performance of the heat insulating layer is remarkably lowered by the penetrated water, so that the waterproof performance as well as the heat insulating performance are lowered.

In addition, it is necessary to satisfy the heat insulation property and the waterproof property of the building basically to delay the deterioration of the building as much as possible, and the insulation cost and the waterproofing construction of such a building have a problem that the construction cost increases and the construction period becomes longer.

Korean Patent Publication No. 10-1219636 (Announcement of Mar. 01, 2013) Korean Patent Publication No. 10-1431380 (Announced 2014.08.18) Korean Patent Publication No. 10-1777659 (Announcement of Dec. 12, 2017)

It is an object of the present invention to solve the above-mentioned problems. It is an object of the present invention to apply foamed polyethylene mainly used as a heat insulating material or a heat insulating material to a building waterproofing method to maximize heat insulating property while maintaining waterproof performance for buildings, Likewise, since the waterproof layer applied to the building prevents the deterioration phenomenon such as peeling and peeling due to the temperature difference, and the thermal insulation is added to the building itself, the hybrid waterproof structure is provided so as to satisfy both the waterproof property and the heat insulating property And to provide a YPS structure and a YPS method which improve the heat insulation through waterproofing of a double-layered insulation sheet and coating film.

According to an aspect of the present invention, there is provided a sheet processing apparatus comprising: a sheet layer formed by laying a heat insulating sheet on a base surface in primary and secondary directions; And a coating layer formed by applying a coating material having a predetermined thickness to the sheet layer; Wherein the sheet layer comprises a primary sheet layer in which a heat insulating sheet is laid in a joined manner; And a double layer cross laying type sheet layer is formed by laying a heat insulating sheet so that a joint portion, which is a joint portion of the primary sheet layer, is positioned at the center; Wherein the heat insulating sheet comprises a base portion formed of foamed polyethylene; A reinforcing portion formed at one end of the substrate portion to improve durability of the substrate portion; And a tacky portion formed at the other end of the substrate portion so as to allow the sheet to be formed in a self-adhesive manner; And the reinforcing portion includes a joint reinforcing vane extending a predetermined length from one end or both ends of the base portion to increase a coupling force to the joint portion.

In the present invention, the joint portion of the sheet layer is provided with an expansion joint portion for absorbing or mitigating shock or vibration acting on the building to improve the durability of the sheet layer and the coating layer formed by the heat insulating sheets .

In the present invention, the expansion joint portion is formed by spacing the heat insulating sheets at regular intervals to form a joint space; An expansion joint bridge which is seated in the joint space and in which a joint reinforcing vane of the heat insulating sheet is located; And a joint coating layer filling the joint space with a coating material to improve the bonding force with the heat insulating sheet by the expansion joint bridge and to absorb or mitigate impact or vibration acting on the building.

In the present invention, the expansion joint portion is provided with a double expansion joint bridge, which is provided in a direction opposite to the primary expansion joint bridge located below and maintains the joint reinforcing vanes of the heat insulating sheet in mutual engagement state .

In the present invention, it is preferable that the expansion joint bridge includes a plurality of impregnating holes for allowing the coating material forming the joint coating layer to infiltrate and maintain the impregnated joint bridge impregnated to improve the bonding force.

The present invention provides a method of manufacturing a semiconductor device, A primer applying step of applying a primer to the cleaned surface; A first sheet laying step of first laying a heat insulating sheet in a manner that a substrate made of polyethylene is abutted on a base surface coated with a primer; A joint forming step of reinforcing the joint portion by covering the base portion of the joint reinforcement vane formed on the heat insulating sheet, A second heat insulating sheet is disposed on a first heat insulating layer provided so as to reinforce the joint so that a joint portion of the heat insulating sheet constituting the first sheet layer is positioned at the center of the second heat insulating sheet, A second sheet cross-laying step of covering the joint reinforcing vanes to reinforce the joint portion so that the heat insulating sheet constructed in the first and second stages has a structure of a double cross laying system; And a coating layer forming step of forming a coating layer by applying a coating material having a predetermined thickness on the sheet layer formed by the double cross laying method.

In the present invention, the heat insulating sheets primarily installed at the first sheet laying step are spaced apart at regular intervals to form a joint space of a certain space; The joint forming step may include an expansion joint bridge seating step of seating an expansion joint bridge in the joint space; A joint reinforcing vane seating step for positioning a joint reinforcing vane formed on the heat insulating sheet on the expansion joint bridge when the expansion joint bridge is seated in the joint space; And filling the joint space with the coating material so as to improve the bonding force between the expansion joint bridge and the joint reinforcing vane and the shock or vibration acting on the building, when the joint reinforcing vane of the heat insulating sheet is placed on the expansion joint bridge. Absorbing or alleviating the surface tension of the coating layer.

The present invention applies foamed polyethylene mainly used as a heat insulating material or a heat insulating material to a building waterproofing method to maximize the heat insulating property while maintaining the waterproof performance of the building so that the waterproof layer applied to the building is peeled off, It is possible to prevent the deterioration phenomenon such as peeling or the like from occurring and to adhere the heat insulation property to the building itself, thereby satisfying both the waterproof property and the heat insulation property.

FIG. 1 is a cross-sectional perspective view of a conventional waterproof structure. FIG.
2 is a sectional view of Fig. 1;
3 is a schematic perspective view of a YPS structure according to a first embodiment of the present invention;
4 is a cross-sectional view of a YPS structure according to a first embodiment of the present invention;
5 is a perspective view of a heat insulating sheet according to a first embodiment of the present invention;
6 is a process chart of the YPS method according to the first embodiment of the present invention.
7 is a cross-sectional view of a YPS structure according to a second embodiment of the present invention;
8 is a perspective view of an expansion joint bridge according to a second embodiment of the present invention.
9 is a process diagram of a joint forming step according to a second embodiment of the present invention;
10 is a sectional view of a YPS structure according to a third embodiment of the present invention;
11 is a sectional view of a YPS structure according to a fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

≪ Embodiment 1 >

The YPS structure of the first embodiment applies foamed polyethylene mainly used as a heat insulating material or a heat insulating material to a building waterproofing method to maximize the heat insulating property while maintaining the waterproof performance of the building. As a result, It is a hybrid type waterproof structure developed by Wiplus Construction Co., Ltd. to satisfy both waterproof and heat insulating properties by preventing the deterioration phenomenon such as peeling and peeling due to incidentally imparting heat insulation to the building itself.

As shown in FIG. 3 to FIG. 5, the YPS structure includes a sheet layer for secondarily laying a heat-insulating insulating sheet on a base surface, and a coating layer formed by coating a coating material on the sheet layer to a predetermined thickness do.

The heat insulating sheet 10 constituting the sheet layer is composed of a substrate portion 12, a reinforcing portion 14 and an adhesive portion 16.

The substrate portion 12 is made of a material that satisfies both waterproof and heat insulating properties.

In this case, the substrate portion 12 is foamed polyethylene.

The foamed polyethylene is mainly used as a heat insulating material or a heat insulating material until now, and the polyethylene is foamed polyethylene foam.

Further, since the foamed polyethylene has an air layer in which self-pores are formed as foamed, the foamed polyethylene exhibits thermal insulation by the air layer and can perform the buffering function by the air layer.

Accordingly, when the substrate 12 formed of the foamed polyethylene is applied to the roof of a building, it is possible to prevent the external impact or vibration applied to the roof by the shock absorbing function, Or the like, to thereby provide a side effect of protecting the waterproof layer applied to the base surface.

The reinforcing portion 14 is positioned at the upper end of the base portion 12 to reinforce the tensile strength which is a weak point of the base portion 12 and to improve the bonding force with the coating layer.

The reinforcing portion 14 is preferably formed integrally with the substrate portion 12. [

The reinforcing portion 14 may be made of a nonwoven fabric, but is not limited thereto. For example, the reinforcing portion 14 may be made of a woven fabric or a mesh net, and may be made of a material capable of improving the protection and durability of the base portion 12 Or a structure can be used.

The reinforcement portion 14 includes a joint reinforcement vane 14a extending from the one end of the base portion 12 by a predetermined length.

The joint reinforcement vane 14a can overlap the joint portions that are inevitably generated by overhanging the base portions 12 in a certain overlapping manner when forming the sheet layer, ), That is, to enhance the waterproofness and bonding force of the joint portion.

The adhesive portion 16 is formed to have an adhesive force to the substrate portion 12, and the sheet layer is formed by the adhesion method, thereby providing ease of installation.

In this case, the adhesive portion 16 can be used as long as it can smoothly form the adhesive portion 16 at the other end of the substrate portion 12 and exhibit an adhesive force to such an extent that a self-adhesive type adhesive can be installed.

The heat insulating sheet 10 constructed as described above forms a sheet layer through a double cross laying method with respect to the base surface.

That is, after the base material 12 is joined to the base surface in a self-adhering manner, the joint reinforcement vane 14a of the reinforcing portion 14 formed at the upper end of the base material portion 12 is covered, Thereby forming a primary sheet layer reinforced with the joint.

Next, when the secondary sheet layer is formed on the primary sheet layer, the heat insulating sheet 10 is installed so that the joint portion of the heat insulating sheet 10 of the primary sheet layer is positioned at the center, A double cross laying method in which the secondary sheet layers are mutually intersected is adopted.

Such a double-layer cross-laying type sheet layer adopts a non-joint type in which joint portions are not formed, thereby improving the waterproof performance and exhibiting heat insulation on the entire base surface.

The coating layer is formed by forming a coating layer having a predetermined thickness on the sheet layer formed by the double cross laying method, thereby further improving the waterproof performance.

The coating film layer 20 is made of a polyurethane film coating composition including insulation performance, exhibits waterproof performance as well as insulation performance, minimizing the occurrence of waterproof layer floats (air pockets) due to temperature difference between inside and outside of the building Thereby improving the durability of the waterproof layer.

In the polyurethane film waterproofing composition constituting the coating film layer 20, the subject and the curing agent are constituted at a weight ratio of 1: 3.

In this case, since the above-mentioned subject is a general technical idea in the polyurethane coating composition, a detailed description thereof will be omitted.

Wherein the curing agent comprises 25.5 to 27.5% by weight of polyol, 1 to 2% by weight of a crosslinking agent, 3 to 5% by weight of a color pigment, 9 to 11% by weight of char, 0.1 to 0.5% by weight of a dispersing agent, % Of a plasticizer, 47 to 59 wt% of an extender pigment, 0.2 to 1 wt% of a defoamer, 0.2 to 2 wt% of a plasticizer, 0.3 to 1 wt% of an accelerator and 0.6 to 2 wt% of a heat blocker.

The polyol may be a polyether polyol, a polyester polyol, an acrylic polyol, an oil-free polyol, or the like, and more specifically, polypropylene glycol propoxylated polyol, PP-3000, AG-3000 . In this case, the polyol is composed of 30 to 40% by weight of PP-3000 having softness and 60 to 70% by weight of AG-3000 having hardness so that the durability, flowability, strength, hardness So as to obtain the physical properties of the substrate. Here, PP-3000 and AG-3000 are product names produced by Korea Polyol Co., Ltd.

The crosslinking agent may be an amine crosslinking agent or an aniline crosslinking agent. More specifically, dimethylthiotoluenediamine (DMTDA) and methylenebiso (2-chloroaniline) (MOCA) are selectively used. Here, it is preferable to use 'DMTDA' produced by Samyang Fine Co., Ltd. as the crosslinking agent.

The colored pigment uses a green paste pigment. Of course, the present invention is not limited thereto, and it is possible to use various stimulating pigments depending on the user's demand or purpose of use or the place of construction, and may be omitted in some cases.

The dispersant may be a polyamine amide type unsaturated polycarboxylic acid, an alkylammonium salt type polycarboxylic acid, or an alkylol ammonium salt type unsaturated fatty acid. In this case, CFC-510D is preferable. CFC-510D is a product name produced by Wuzhen Pigment Co., Ltd.

The anti-settling agent may be a polyamide wax, a polyethylene wax or the like, and CIMA-440 or the like may be used. Herein, CIMA-440 is used as the anti-settling agent, and CIMA-440 is a product name of WISEN PIGMENT CO., LTD.

The extender pigment is used for the purpose of improving optical properties, mechanical properties, fluidity, etc., and calcium carbonate, barium sulfate, kaolin, aluminum hydroxide and the like can be used, and TH-800 and OM- 1 to 5 wt% of TH-800 and 95 to 99 wt% of OM-10CN. Here, the extender pigment is a product produced by Omiya Korea Co., Ltd.

The antifoaming agent may be a silicone, an alcohol or a surfactant, and more specifically, a silicone oil (polymethylsiloxane), octyl alcohol, cyclohexanol, ethylene glycol or CFC-166H. Here, the CFC-166H is a product produced by Wuzhen Pigment Co., Ltd.

(DOP), dioctyl adipate (DOA), tricresylphosphate (TCP), and the like. The plasticizer is a phthalate-based plasticizer. More specifically, the plasticizer is selected from the group consisting of arsenic (2-ethylhexyl) terephthalate (NEO- . Here, NEO-T is a product produced by Ake Kyung Oil &

The accelerator may mean a reaction promoter (catalyst), and may be a tertiary amine type or a metal compound, and more specifically, triethylamine, triethylenediamine, tetramethylethylenediamine, diethylpiperazine , Tetramethylbutane diamine, tetramethylhexanediamine, N-methylmorpholine, pyridine, picoline, tin octoate, lead octoate, dibutyl tin dilaurate, dibutyl tin diacetate, potassium acetate, sodium bicarbonate, lead 2 Hexafluorophosphate, tetrabutyl titanate, tetrabutyl titanate, tetrabutyl titanate, tetrabutyl titanate, tetrabutyl titanate, tetrabutyl titanate, tetrabutyl titanate , Aluminum isopropoxide, tin octoate, tin acetate, butylstearic acid, monobutyltin hydrate, monobutylchloro Tindi hydroxide is a side, sauteed North ray oxalate, dibutyl tin oxide, dibutyl tindi methoxide, dibutyl tindi Appendix side, triphenylphosphine, Binal A-9 and so on.

The char has a function of reducing volatile organic compound content and acting as an additive to improve tensile strength, tear strength, temperature dependency, and adhesion strength.

The heat shielding agent is a kind of additive, which imparts heat insulating performance to the waterproof layer to improve durability.

The heat blocker is formed of a hollow filler. The hollow filler has a diameter of 0.5 to 1 mm and a length of 1 to 2 mm, and functions to block heat.

division Comparative Example (basic compounding ratio) Example (New compounding ratio) material role Mixing ratio material role Mixing ratio One PP-3000 Polyol 14.80 PP-3000 Polyol 10 2 MOCA Cross-linking agent 0.4 DMTDA Cross-linking agent 1.40 3 AG-3000 Polyol 7.00 AG-3000 Polyol 16.3 4 green
PASTE Colored pigment 4.00 green
PASTE Colored pigment 4.00 5 Monorail 3300 Anti-settling agent 0.50 charcoal additive 10 6 ASP-170 Extender pigment 2.00 CFC-510D Dispersant 0.20 7 OM-20CN Extender pigment 32.5 CIMA-440 Anti-settling agent 0.50 8 DOP Plasticizer 2.60 TH-800 Extender pigment 2.00 9 OM-10CN Extender pigment 31.6 CFC-166H Defoamer 0.40 10 XYLENE solvent 4.10 NEO-T Plasticizer 1.7 11 PB-24% accelerant 0.50 OM-10CN Extender pigment 51.5 12 Binale-9 accelerant 0.5 13 Hollow filler Train terminal One Total 100 Total 100

As shown in Table 1, the composition ratio of the calcium carbonate (OM-10CN, OM-20CN), which is an extender pigment, is reduced and replaced with charcoal so that the waterproof performance can be maintained while lowering the composition rate. By ensuring the thermal barrier function including the hollow filler, which is a kind of additive, it is possible to minimize the occurrence of the water phase which may be caused by the difference in temperature between the inside and the outside with respect to the base surface, The following problems were solved through the coating layer formed as described above.

1. Viscosity increase

- Contents: Viscosity increased from 8,000 to 17,000

- Countermeasure: Adjustment of viscosity and properties by adjusting calcium carbonate content and changing polyol

2. Decrease in dispersibility

- Content: Material separation between materials

- Countermeasure: Improve dispersibility with CFC-510D

3. Increase of bubble volume

- Content: By using CFC-510D, which is used to prevent the degradation of dispersibility, it is possible to suppress the emission of smooth bubbles as the dispersibility increases.

- Countermeasure: CFC-166H is used, 0.4% mixing (removal of bubble volume)

4. Settling filler such as calcium carbonate, charcoal, etc.

Content: Settling of filler

Countermeasures: Using CIMA-440, 0.5% incorporation (sedimentation prevention)

The following improvement effects were obtained by the polyurethane coating material waterproofing material prepared through the comparative example as described above. VOCs content and physical properties were measured by the following test method.

<Test Method>

The volatile organic compound content of the polyurethane coating film waterproofing material may be 1 g / L or less, preferably 0.2 g / L or less. The lower limit may be 0.01 or 0 g / L. The volatile organic compound content can be measured using GC, gas sensor, or the like.

The tensile strength of the polyurethane coating film waterproofing material may be 5 N / mm 2 or more, preferably 5.5 N / mm 2 or more. The upper limit value may be 7 or 10 N / mm &lt; 2 &gt;. The tensile strength was tested by using a tensile tester satisfying the conditions specified in KS F 3211-99 until the specimen was broken by pulling the specimen of dumbbell type 3 at a speed of 500 mm / min. Respectively.

[Mathematical Expression]

T _B = P _B / A

In Equation 1, T _B is the tensile strength _, P _B is the maximum load, and A is the cross-sectional area of the test piece.

&Quot; (2) &quot;

T _T = 10 P _T / t

In Equation (2), T _T is the tear strength, P _T is the maximum load, and t is the thickness of the test piece.

The tensile strength ratio of the polyurethane coating film waterproofing material at -20 캜 may be 170 or more, preferably 179 or more. The upper limit may be 200 or 250. The tensile strength ratio at 60 캜 may be 72 or more, preferably 76 or more. The upper limit may be 100 or 150. The temperature dependency test was carried out according to the tensile test conditions of KS F 3211-99 while keeping the specimens at -20 ° C, 0 ° C, 60 ° C, and 80 ° C for more than 1 hour.

The adhesion strength of the polyurethane coating film waterproofing material may be 1.5 N / mm 2 or more, preferably 1.7 N / mm 2 or more. The upper limit value may be 3 or 5 N / mm &lt; 2 &gt;. The bond strength was measured using an adhesion strength measuring apparatus, ASTM D 4541, UTM, and the like.

[Test Example]

As shown in the comparative table, when 64.1% by weight of calcium carbonate (OM-10CN, OM-20CN), which is an extender pigment, was replaced with 10% by weight of charcoal according to the present invention, the following effects were obtained. VOCs content and physical properties were measured according to the above test method.

<Improvement effect>

1. Improvement effect 1

- Content: Reduction of VOCs content

- Effect: Charcoal-free VOCs 100 g / L => Charcoal-containing VOCs 0.20 g / L

2. Improvement effect 2

- Content: Improved tensile strength and tear strength

- Effect: Without charcoal Tensile strength 4.6N / ㎟ => Charcoal tensile strength 5.5N / ㎟

         Toughness without charcoal 21.9N => Tear strength including charcoal 24.8N

3. Improvement effect 3

- Content: Improvement of temperature dependency (-20 ℃, 60 ℃)

- Effect: Without charcoal and hollow filler -20 ℃ Tensile strength ratio 165 => Including charcoal and hollow filler -20 ℃ Tensile strength ratio 185

4. Improvement effect 4

- Content: Bond strength improvement

- Effect: Without charcoal and hollow filler Bond strength 1.4N / ㎟ => Bonding strength with charcoal and hollow filler 1.9N / ㎟

In addition, the thermal conductivity of the sheet and the coating material constituted as described above can be confirmed more reliably by the results of the thermal conductivity test in the Korea Chemical Fusion Test Institute (KTR).

The YPS method for forming the sheet layer and the coating layer of the double cross laying type as described above will be described as follows.

6, the YPS method of the present invention includes a base surface preparation step S1, a primer application step S2, a primary sheet installation step S3, a joint formation step S4, A car seat crossing step S5 and a coating layer forming step S6.

The ground surface preparation step S1 is a step of arranging the ground surface to be constructed.

The primer coating step (S2) is a step of applying a primer having a certain thickness on the cleaned surface.

The primary sheet installation step S3 is a step of placing the heat insulating sheet 10 on the base surface coated with the primer.

In this case, the heat insulating sheet 10 is installed in such a manner that the base portions 12 of the heat insulating sheet 10 to be installed are mutually abutted.

The joint forming step S4 is performed such that the joint reinforcing vane 14a of the reinforcing portion 14 protruding by a predetermined length from the one end of the substrate 12 installed in the butt jointing manner is superimposed on the adjacent heat insulating sheet 10 So as to reinforce the joint portion, so that a primary sheet layer is formed on the base surface.

The second sheet crossing step S5 is a step of cross-laying the heat insulating sheet 10 on the first sheet layer reinforced by the joint reinforcing vanes 14a.

This is because the heat insulating sheet 10 is laid on the base surface by the butt joint method and then the joint portion is reinforced by the joint reinforcing vanes 14a to form the first sheet layer, The joint portion, which is a butt joint portion of the primary sheet layer, is positioned at the center of the lower end central portion of the heat insulating sheet 10 constituting the secondary sheet layer in a cross laying manner.

In addition, the joint reinforcing vanes 14a of the heat insulating sheet 10 constituting the secondary sheet layer are covered on the adjacent heat insulating sheet 10 as described above.

The coating layer formation step (S6) is a step of forming a coating layer so as to improve the waterproof property by applying a coating material having a certain thickness on the sheet layer composed of the double-crossover construction over the primary and secondary coatings.

As described above, it can be seen that the insulation effect according to the YPS structure and the method according to the present invention is significantly different as shown in the following table.

■ Evaluation of joint bridging ■
division
Connection method
Experimental Status (General Camera)
Experimental Status (Thermal Imaging Camera)
Conventional technology

Invention

That is, as in the prior art, when the waterproof sheet and the coating layer of the single layer are joined together, it is confirmed that a "+" type joint is formed due to thermal bridging at the butt joint of the waterproof sheet.

However, since the YPS structure of the present invention employs a double joint method and adopts a structure of a double-layer cross-over type, the joint portion is not recognized, and a captured image of the same color can be confirmed as a whole , Which demonstrates that the thermal bridges generated at the joints of the waterproof sheet are suppressed.

&Lt; Embodiment 2 >

The same reference numerals are used for the same components as those in the first embodiment, and a detailed description thereof will be omitted.

As shown in Figs. 7 to 8, the YPS structure of the second embodiment includes a sheet layer and a coating layer 20 formed by installing a heat insulating sheet 10 in a double crossing laying manner, and inevitably And an expansion joint portion 30 for reinforcing the generated joint portion.

The expansion joint portion 30 is formed on the joint portion of the primary sheet layer to be formed on the base surface to reinforce the joint portion of the primary sheet layer to absorb or mitigate the action acting on the building, Protection.

The expansion joint portion 30 secures the joint space 32 by spacing a predetermined interval between the heat insulating sheets 10 that are firstly laid on the base surface.

The joint space (32) includes an expansion joint bridge (34) for enhancing a coupling force to the adjacent heat insulating sheets (10).

The expansion joint bridge 34 includes a body 342 that is seated on a base surface and at least one expansion stand 344 that protrudes at a predetermined height in the body 342 at a predetermined height.

The body 342 functions to support the expansion joint bridge 34 so that the expansion joint bridge 34 can stably be seated.

The joint reinforcement vane 14a formed on the heat insulating sheet 10 is positioned on the expansion stand 344 to improve the coupling force.

In addition, a plurality of impregnated holes 346 are formed in the expansion joint bridge 34 to induce a coating material constituting a joint coating layer, which will be described later, to be impregnated to improve bonding force.

The expansion joint 30 includes a joint coating layer 36 that fills the joint space 32 to absorb or mitigate shock or vibration acting on the structure.

The joint coating layer 36 is preferably made of polyurethane to form the coating layer 20 described above. Of course, the present invention is not limited thereto, and any material capable of absorbing or mitigating shock or vibration acting on the building can be used.

The construction method of the expansion joint unit having the above structure will be described with reference to FIG.

First, when the heat insulating sheet 10 is laid on the base surface in the first sheet installation step S3 of the YPS method using the same YPS method as that of the first embodiment, So that a joint space 32 having a predetermined interval is formed.

Next, when the joint forming step S4 of the first embodiment is employed, the joint forming step S4 includes the steps of placing the expansion joint bridge S42, the joint reinforcing vane seating step S44, (S46).

The expansion joint bridge seating step S42 seats the expansion joint bridge 34 in the joint space 32 spaced apart by a predetermined distance from the heat insulating sheet 10 in the primary sheet installation step S3.

The joint reinforcing vane seating step S44 is a step of unfolding the joint reinforcing vane 14a formed on the heat insulating sheet 10 in a state in which the expansion joint bridge 34 is seated in the joint space 32, (34).

In this case, it is preferable that the joint reinforcing vanes 14a of the heat insulating sheet 10 use two wing shapes each having a certain length extending from both ends of the base portion 12 of the heat insulating sheet 10. [

In other words, the joint reinforcement vanes 14a formed on each of the adjacent heat insulating sheets 10 are placed on the expansion joint bridge 34 seated in the joint space 32 so as to overlap each other, do.

Of course, it is not limited to this, and it is also possible to use one formed at one end of the substrate portion 12 like the heat insulating sheet 10 of the first embodiment.

The joint coating layer forming step S46 is a step of coating the coating material on the joint space 32 when the joint reinforcing vane 14a of the heat insulating sheet 10 is mounted on the expansion joint bridge 34, The joint coating layer 36 filled with the filler 32 is formed.

The coating material applied to the joint space 32 enhances the fixing force of the expansion joint bridge 34 on the ground surface as the coating material is impregnated with the impregnation hole 346 formed in the expansion joint bridge 34 .

The joint reinforcement vane 14a placed on the expansion joint bridge 34 is also impregnated with the coating material so that the joint reinforcement vane 14a is struck by the expansion joint bridge 34, The joint reinforcement vane 14a can be inserted into the hole formed in the joint reinforcement vane 14a so that the expansion stand 344 of the expansion joint bridge 34 can be inserted to improve the binding force of the heat insulating sheet 10 do.

&Lt; Third Embodiment >

The same reference numerals as those of the first and second embodiments are used, and a detailed description thereof will be omitted.

The expansion joint portion 30 of the third embodiment further enhances the coupling force with the heat insulating sheet 10 through the double expansion joint bridge 34, as shown in Fig.

This is because the joint reinforcement vane 14a of the heat insulating sheet 10 is positioned on the expansion joint bridge 34 after the expansion joint bridge 34 is first placed on the base surface, And secondarily places the expansion joint bridge 34 in the reverse direction.

At this time, since the expansion stand 344 formed on the secondarily installed expansion joint bridge 34 is interlocked with the expansion stand 344 of the expansion joint bridge 34 on which the first load bearing 34 is installed, And the joint brace reinforcement vane 14a of the heat insulating sheet 10 is brought into a state of being interposed between the expansion joint 34 of the secondary expansion joint bridge 34 and the expansion joint 344 of the secondary expansion joint bridge 34,

<Fourth Embodiment>

The same reference numerals are used for the same components as those of the first to third embodiments, and a detailed description thereof will be omitted.

As shown in Fig. 11, the YPS structure of the fourth embodiment is similar to the first embodiment in that a sheet layer is formed in a double crossing laying manner using a heat insulating sheet 10 with respect to a base surface, The durability of the sheet layer is improved by forming the expansion joint portions 30 shown in the second and third embodiments at the joint portions where the secondary sheet layers are produced.

That is, after the heat insulating sheet 10 is installed so as to form the joint space 32 at regular intervals on the base surface, the joint reinforcing wings 34 of the expansion joint bridge 34 and the heat insulating sheet 10 are inserted into the joint space 32, (14a) is placed and a coating material is applied to form a primary sheet layer on which the joint coating layer (36) is formed.

Next, the heat insulating sheet 10 is placed so that the expansion joint portion 30 of the primary sheet layer is located at the center, and a secondary sheet layer is formed by a double cross laying method.

At this time, after inserting the heat insulating sheet 10 so that the secondary sheet layers are formed at regular intervals so that the joint spaces 32 are formed, the expansion joint bridges 34 and the heat insulating sheets 10 The joint reinforcement vane 14a is positioned and a coating material is applied to form a secondary sheet layer on which the joint coating layer 36 is formed.

The above description is only one example for carrying out the YPS structure and the YPS method to improve the heat insulating property through the double crossing installation of the heat insulating sheet and the coating film waterproofing, and the present invention is not limited to the above embodiment . It will be understood by those skilled in the art that various changes may be made without departing from the spirit of the invention.

10: a heat insulating sheet 12:
14: reinforcement part 14a: joint reinforcement blade
16: Adhesive part 20: Coating layer
30: Expansion joint part 32: Joint space
34: Expansion joint bridge 342: Body
344: Eyspension stand 346: Invasion of the Hans
36: joint coating layer

Claims (7)

A sheet layer formed by laying a heat insulating sheet on a primary surface and a secondary surface; And
And a coating layer (20) formed by applying a coating material having a predetermined thickness to the sheet layer;
The sheet layer includes a primary sheet layer in which a heat insulating sheet (10) is laid in a butt joint manner; And
A heat insulating sheet (10) is laid in such a manner that a joint portion, which is a joint portion of the primary sheet layer, is positioned at the center, thereby forming a double layer cross laying type sheet layer;
The heat insulating sheet 10 includes a base portion 12 formed of expanded polyethylene;
A reinforcing portion 14 formed at one end of the base portion 12 to improve the durability of the base portion 12; And
And an adhesive portion (16) formed at the other end of the substrate portion (12) to allow the sheet to be formed in a self-adhesive manner;
The reinforcing part (14) includes a joint reinforcing wing (14a) that extends a predetermined length at one end or both ends of the base part (12) to enhance a bonding force to the joint part;
The joint portion of the sheet layer absorbs or mitigates shock or vibration acting on the building to improve the durability of the sheet layer and the coating layer 20 formed by the heat insulating sheets 10, (30);
The expansion joint portion 30 forms the joint space 32 by spacing the heat insulating sheets 10 at regular intervals;
An expansion joint bridge (34) which is seated in the joint space (32) and on which a joint reinforcing vane (14a) of the heat insulating sheet (10) is located; And
A coating film material is filled in the joint space 32 to improve the bonding force with the heat insulating sheet 10 by the expansion joint bridge 34 and to absorb or mitigate impact or vibration acting on the building 36);
The YPS structure improves the heat insulating property through double crossing of the heat insulating sheet and waterproofing of the coating film.
delete delete [2] The apparatus according to claim 1, wherein the expansion joint portion (30)
A double expansion joint bridge 30 installed in a direction opposite to the primary expansion joint bridge 30 positioned below and maintaining the joint reinforcing vanes 14a of the heat insulating sheet 10 in mutual engagement;
The YPS structure improves heat insulation through double crossing of the heat insulating sheet and coating waterproofing.
[3] The apparatus according to claim 1, wherein the expansion joint bridge (34)
A plurality of impregnated holes (346) for penetrating the coating material forming the joint coating layer (36) to maintain the impregnated joint bridge (34) impregnated to improve the bonding force;
The YPS structure improves the heat insulating property through double crossing of the heat insulating sheet and waterproofing of the coating film.
(S1) of arranging a base surface;
A primer application step (S2) of applying a primer to the cleaned surface;
A primary sheet installation step (S3) of first placing the heat insulating sheet (10) in a manner that the substrate part (12) made of polyethylene is placed on the base surface coated with the primer;
A joint forming step (S4) of reinforcing the joint portion so that the joint reinforcement vane (14a) formed on the heat insulating sheet (10) installed on the primary side is covered with the base portion (12)
A second heat insulating sheet (10) is laid on a first heat insulating layer provided so as to reinforce the joint. The joint portion of the heat insulating sheet (10) constituting the primary sheet layer is positioned at the center of the secondary heat insulating sheet And the joint portion is reinforced by covering the joint reinforcing vanes 14a formed on the secondary heat insulating sheet 10 so that the heat insulating sheet 10 constructed in the first and second order forms a double crossed laying structure (S5); And
(S6) forming a coating layer by applying a coating material having a predetermined thickness on the sheet layer formed by the double cross laying method;
In the primary sheet installation step S3, the heat insulating sheets 10 to be firstly installed are spaced apart at regular intervals to form a joint space 32 of a certain space;
The joint forming step S4 includes an expansion joint bridge seating step S42 for seating the expansion joint bridge 34 in the joint space 32;
A joint reinforcement vane seating step (14a) in which the joint reinforcement vane (14a) formed on the heat insulating sheet (10) is positioned on the expansion joint bridge (34) when the expansion joint bridge (S44); And
When the fitting of the joint reinforcement vane 14a of the heat insulating sheet 10 is completed on the expansion joint bridge 34, the coating material is filled in the joint space 32, and the joint of the expansion joint bridge 34 and the joint A joint coating layer formation step (S46) for improving the bonding force of the reinforcing wing (14a) and absorbing or alleviating impact or vibration acting on the building;
And a YPS method in which insulation is improved by doubly crossing the insulation sheet and waterproofing the coating film. delete

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