KR101564671B1 - Waterproofing method, which is manufactured in the field - Google Patents
Waterproofing method, which is manufactured in the field Download PDFInfo
- Publication number
- KR101564671B1 KR101564671B1 KR1020150044454A KR20150044454A KR101564671B1 KR 101564671 B1 KR101564671 B1 KR 101564671B1 KR 1020150044454 A KR1020150044454 A KR 1020150044454A KR 20150044454 A KR20150044454 A KR 20150044454A KR 101564671 B1 KR101564671 B1 KR 101564671B1
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- South Korea
- Prior art keywords
- waterproofing
- glass fiber
- fiber mat
- coating
- layer
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 71
- 239000011248 coating agent Substances 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 70
- 239000003365 glass fiber Substances 0.000 claims abstract description 49
- 239000011387 rubberized asphalt concrete Substances 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims description 15
- 238000005336 cracking Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 56
- 239000010408 film Substances 0.000 description 25
- 239000011247 coating layer Substances 0.000 description 14
- 230000007547 defect Effects 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
Abstract
More particularly, the present invention relates to a method for waterproofing a high-strength sheet without joints in situ, and more particularly, to a method for waterproofing a high strength sheet having a solid content of 85% or more and a stable thickness of 1 mm or more, A first rubberized asphalt coating material waterproofing material having an elongation of 1,500% or more to form a coating waterproofing layer; A single glass fiber is cut to 3 to 5 cm, dispersed in an arbitrary direction, and then air-permeable glass fiber mat pressed in a thickness of 1.0 mm to 1.2 mm in an entangled state is laid on the surface of the film waterproof layer Causing a lower surface of the glass fiber mat to adhere; When the waterproof layer of the coating film with the glass fiber mat is cured, a second rubberized asphalt coating waterproofing material having a solid content of less than 40% and a viscosity of 500 cps or less and excellent flowability and a low viscosity is applied on the glass fiber mat, And allowing the sheet to be absorbed by the fiber mat and then curing to form a sheet waterproof layer.
Therefore, since the first and second rubberized asphalt coating waterproofing materials in the field are used in the field, the construction is simple and the entire construction site becomes a single waterproof sheet without joints, The present invention provides a high-strength sheet waterproofing method which is capable of solving the problems of the present invention.
Description
The present invention relates to a high-strength sheet waterproofing method that does not have an on-site manufacturing type joint, and more particularly, to a waterproofing method for a high strength sheet which is composed of the same material and has homogeneous rubberized asphalt coating waterproofing materials, The present invention relates to a high-strength sheet waterproofing method that can be formed into a single sheet at the time of site construction, and which can be formed into a sheet as a whole,
In concrete structures, bending moment or vibration due to static and dynamic load is generated, cracking occurs, and peeling due to neutralization and aging occurs.
In addition, rainwater and the like generate cracks and cracks on the concrete surface, penetrate into the gaps to accelerate the cracking of the concrete by corroding the reinforcing bars, and the cracks in the concrete cause shortening the life of the civil engineering structure.
Currently, many materials and waterproofing methods have been developed and used to meet these problems. However, in reality, this waterproofing industry is classified as a 3D industry. Due to lack of understanding of various construction methods due to the absence of skilled workers, In the climate environment, products that meet both high and low temperatures are rare.
In addition, the problem of liability due to defects of the producer and the contractor, such as the blending ratio error, excessive use of the diluting material, the curing time, and the bonding performance according to the temperature, is frequently encountered legally.
Currently, Korea's representative waterproofing methods are sheet waterproofing, film waterproofing, composite waterproofing combining sheet and film according to the construction method.
In case of coating method, waterproof layer is formed by coating liquid after applying several times of liquid phase. It is very good in workability but it can not form waterproof layer of constant thickness. In the thin film thickness region, breakage due to crack of concrete frequently occurs, (Such as glass fiber, non-woven fabric) are used as the center substrate because of the frequent phenomena such as swelling (Fig. 1), acorns (Fig. 2) and bubbles due to water vapor pressure generated in the concrete matrix. There is a difficulty in construction due to problems of absorption power, inconsistency of bonding property and dimensional stability to one stiffener.
In addition, as shown in FIG. 3, there is a problem that the operator may damage the coating layer due to the footprint as shown in FIG. 4 because the operator steps on the coating layer.
In case of sheet type, thermal fusion type and self-bonding type are typical. In the case of thermal fusion type, a product manufactured by molding with a certain standard is used to continuously work with a torch. There is a problem of deterioration of physical properties of a product due to an unstable temperature and deterioration of a joint part and a deterioration of workability of an irregular part as shown in FIGS. 5 and 6, as shown in FIGS. 5 and 6, In the case of molding, the material cost is high and the adhesive strength is very good in summer, but due to water vapor pressure, there is a problem of swelling of the sheet due to the high temperature adhesion, .
In the case of the complex type, it has the advantage of securing the stability by treating the sheet and the coating film in a double manner. However, since the material cost and the construction cost are very high and the workability is complicated, As a result, peeling and joint joints are frequently broken, and a new method is desired.
The present invention has been conceived in order to solve the problem of waterproofing of the coating film and the problem of waterproofing of the sheet. The coating layer is formed by applying a rubberized asphalt coating material waterproofing material to a construction site of a site to be waterproofed, A glass fiber mat having excellent air permeability is laid on the surface of the coating layer and then allowed to adhere to the glass fiber mat. After the coating layer with the glass fiber mat is cured, the glass fiber mat is coated with a rubberized asphalt coating film waterproofing material, A waterproofing sheet made of a rubberized asphalt coating material, a glass fiber, and a rubberized asphalt coating waterproofing material applied on the upper surface of the waterproofing layer as a whole is integrally formed as a single waterproof layer on the site, Problems such as bubbles and acorns that occur when the coating layer is naturalized Is solved by a glass-fiber mat being separate working step is excluded to eliminate burst resistant film, it is an object to provide a joint-type field produced high-strength sheet waterproofing method is not able to shorten the operation time.
The above object is attained by providing a first rubberized asphalt coating waterproofing material having a viscosity of not less than 11,000 cps having a low flowability and having a solid content of not less than 85% and a stable thickness of not less than 1 mm and having an elongation of not less than 1,500% To form a coating water-repellent layer; A single glass fiber is cut to 3 to 5 cm, dispersed in an arbitrary direction, and then air-permeable glass fiber mat pressed in a thickness of 1.0 mm to 1.2 mm in an entangled state is laid on the surface of the film waterproof layer Causing a lower surface of the glass fiber mat to adhere; When the waterproof layer of the coating film with the glass fiber mat is cured, a second rubberized asphalt coating waterproofing material having a solid content of less than 40% and a viscosity of 500 cps or less and excellent flowability and a low viscosity is applied on the glass fiber mat, And then allowing the fiber mat to be absorbed and cured to form a waterproof layer.
When the sheet waterproofing layer is cured, it is preferable that the method further comprises a step of applying a urethane coating waterproofing material to the top of the waterproofing layer, finishing the coating with a urethane top coating, or finishing by placing a protective concrete.
The present invention solves the problem of a coating film waterproofing material which is difficult to form a constant film thickness by solving the problem by forming a coating waterproofing layer by applying a first rubberized asphalt coating waterproofing material containing a high amount of solid content to minimize the flowability, The air bubbles generated by curing the coating layer in the state of being exposed to the air are blown out by attaching a breathable glass fiber mat having a thickness of about 1 mm to the upper part of the coating film waterproof layer, It is possible to induce the formation of a stable coating film layer. In particular, the second rubberized asphalt coating material waterproofing material having a low viscosity and good flowability is applied to the entire glass fiber mat attached to the film waterproofing layer, So that the entire waterproofing construction site is made up of a single As a result, it is possible to solve problems such as peeling and tearing of joints and joints occurring after the waterproofing work due to the failure of joints and joints as in the prior art, and the second rubberized asphalt coating waterproofing material and the glass fiber mat are combined When cured, a high-strength sheet waterproof layer is formed to prevent the waterproof layer from being damaged when the concrete is poured, and the waterproof layer protecting process can be omitted. Thus, the air and the construction cost can be reduced, and the waterproof layer can be formed with one waterproof sheet at the construction site. It is possible to simultaneously solve all the problems such as formation of a waterproof layer of a certain thickness, occurrence of joints and breakage, breakage of a waterproof layer, bubbles and acupuncture, thereby minimizing the occurrence of defects in the future. .
In addition, since the first and second rubberized asphalt coating film waterproofing materials are all made of a waterproofing material of a finished product of one-pack type, since the undiluted solution is applied as it is, it is possible to reduce worker's defects, After 12 hours from application of the curing type solution, it naturally cures to form a single sheet, so that the waterproof layer is not cured or partially cured, so that the constructor can not make a mistake. As a result, the waterproof performance, as well as the workability and economical efficiency, can be improved by a method that can be used by all.
FIG. 1 is a photograph of a state in which a waterproof layer and a fibrous woven fabric reinforcement are swollen together due to lack of air permeability while a conventional coating layer is naturally cured.
FIG. 2 is a photograph of a blowing phenomenon caused by natural curing of a conventional coating layer. FIG.
Fig. 3 is a photograph showing that the reinforcing material is thin in the conventional field,
FIG. 4 is a photograph showing a state in which a waterproof layer is damaged by a footprint of an operator formed on a conventional coating layer
Fig. 5 is a photograph showing a defect caused by the difficulty in the workability of a bent portion between sheets in the past.
Fig. 6 is a photograph showing a fracture portion of an overlapping portion caused by destruction of a material property due to a conventional unstable temperature
FIG. 7 is a photograph of a fracture of a joint due to a strength discrepancy in a composite waterproofing method using a conventional sheet and a coating material.
FIG. 8 is a photograph of a fracture of a joint due to a dissimilar material mismatch in a composite waterproofing method using a conventional sheet and a coating material.
FIG. 9 is a photograph of a top part of a waterproof layer constructed by a high strength sheet waterproofing method of the present invention.
Fig. 10 is a photograph of the surface observed after the internal dent performance test. Fig.
11 is a quality test report of a waterproof coating layer according to the present invention.
12 is a chart showing the overall quality test result of the waterproof coating layer and the waterproof layer according to the present invention.
Hereinafter, the structure and function of the present invention will be described.
First, the rubberized asphalt coating material waterproofing material prepared in the present invention has at least two kinds of waterproofing materials, which have large differences in flow properties and viscosities.
That is, the first rubberized asphalt coating material waterproofing material can stably form a thickness of 1 mm or more due to the solid content remaining in the course of natural curing as the solid content is 85% or more.
In addition, it has viscosity of 11,000 cps or more, low flowability and extensibility of 1,500%. It is excellent in elongation, and when it is applied to the substrate and cured, it has excellent ability to cope with cracks of concrete and can suppress cracking and cracking .
In addition, the second rubberized asphalt coating material waterproofing material has a solid content of less than 40% and is insufficient in its own thickness-forming ability upon natural curing. However, the glass fiber mat is impregnated with a glass fiber mat can do.
The second rubberized asphalt coating material waterproofing material of the second rubberized asphalt coating material waterproofing material has a low flowability and can form a thickness of itself upon natural curing after coating, while having a viscosity of 500 cps or less, The glass fiber mat can be easily impregnated with the glass fiber mat which is low in viscosity and can be formed into a sheet waterproof layer as described above at the time of natural curing.
Meanwhile, in the glass fiber mat provided in the present invention, one glass fiber strand is cut to a length of about 3 to 5 cm, and the plurality of glass fiber strands are cut in any direction, that is, Direction and the like are compressed and formed into a thickness of 1.0 mm to 1.2 mm in a state of being entangled in an irregular direction like a nonwoven fabric and have a breathable property.
When the first and second rubberized asphalt coated waterproofing materials and the glass fiber mat provided as described above are prepared, according to the method of waterproofing a high-strength sheet without seam joints according to the present invention, And the waterproof layer thus constructed has the same structure as that of the waterproof sheet.
Hereinafter, a method of waterproofing a high-strength sheet without joints according to the present invention will be described.
First, as described above, the first worker is coated with a first rubberized asphalt coating material waterproofing material having low flowability and excellent elongation percentage, and excellent in coping with concrete cracking, thereby forming a coating waterproofing layer.
Here, in the case where the first rubberized asphalt coating material waterproofing material is applied to the surface of the base material, a highly elastic rubberized asphalt coating material waterproofing material having a viscosity of about 40,000 cps and having no flowability is applied to a region where cracks occur, such as a bending region, a corner region, A pretreatment process can be performed.
As described above, when the first operator forms the coating film waterproof layer, the second operator places the glass fiber mat on the upper surface of the continuous film waterproof layer positioned behind the first operator before the coating waterproof layer is cured So that the lower surface of the glass fiber mat is adhered to the surface of the film waterproofing layer.
Therefore, the waterproof layer formed by the exposure is applied and the glass fiber mat is adhered to the upper surface of the waterproof layer immediately before the natural hardening process, thereby preventing the ultraviolet rays from reaching the waterproof layer directly, When natural moisture is evaporated, it is discharged naturally through the glass fiber mat which has excellent air permeability. Therefore, a separate work process for removing the waterproof membrane by solving the problem of bubbles and acorns caused by natural hardening It is possible to shorten the working time.
In addition, as described above, when the operation of attaching the glass fiber mat continuously while forming the coating film waterproof layer is completed, the film waterproof layer naturally cures in a state where the glass fiber mat is attached to the coating film waterproof layer. A second rubberized asphalt coating material waterproofing material having a low viscosity and excellent in flowability and penetration is applied to the top of the glass fiber mat to impregnate the glass fiber mat with the second rubberized asphalt coating material waterproofing material and then impregnated with a second rubberized asphalt The step of causing the coating film waterproofing material to cure is performed so that the sheet waterproofing layer is formed.
Therefore, the above waterproof layer of the above-mentioned coating film has a waterproof layer formed of a hardened first rubberized asphalt coating material having a solid content of 85% or more, and a waterproof layer having a thickness of about 1.0 to 1.2 mm, And the second rubberized asphalt coating waterproofing material within 40% is cured in a state of being impregnated to form a sheet waterproofing layer so that the waterproofing layer of the film is shrunk and relaxed corresponding to the behavior and cracks of the base surface, It is possible to perform the function of the waterproof layer while playing the role of the buffer material protecting from the external impact.
In the present invention, the waterproof coating layer, the glass fiber mat, and the waterproof layer of the waterproofing sheet have a structure of one waterproof sheet. The waterproofing layer is coated with a homogeneous rubberized asphalt coating waterproofing material throughout the waterproofing construction site, When the fiber mat is adhered and the coating waterproofing layer is completely cured, the glass fiber mat is cured by impregnating the second rubberized asphalt coating waterproofing material to obtain the effect that the entire waterproofing construction area is constructed by one waterproof sheet, , The structure of one seamless waterproof sheet can be applied to the entire waterproof construction area, thereby preventing the occurrence of defects in joints and joints in advance.
Meanwhile, after the sheet waterproofing layer is cured as described above, a step of applying a urethane coating waterproofing material to the upper part of the sheet waterproofing layer and finishing the waterproofing coating by performing urethane top coating may be carried out. In some cases, Concrete may be placed and finished.
As can be seen from the
As can be seen from Table 2, the test results of the conventional rubber asphalt waterproof sheet manufactured at the factory showed a result above the standard value.
That is, as can be seen from the 'quality test report' of FIG. 11, the waterproof layer of the present invention shows that the waterproof layer of the coating film is excellent in the ability to cope with cracks in concrete, and the upper glass fiber mat and the second rubberized asphalt coating The waterproof layer of the seat made of the waterproof material is formed to have a high strength and can prevent damage such as breakage and tearing when the protective concrete is poured.
In addition, as can be seen from the 'quality test report' in FIG. 12, it can be seen that the extensibility of the film waterproof layer and the sheet waterproof layer at the time of breaking by the high strength sheet waterproofing method without joints according to the present invention is increased up to 433% It can be seen that the resistance against the crack and the behavior of the steel is very excellent.
FIG. 9 is a photograph of a state in which the high-strength sheet waterproofing method without joints according to the present invention is applied to a construction method. FIG. 9 is a photograph showing a state in which a local load is constantly applied At the same time, when a test is performed to define the dent performance of the surface of the waterproof sheet to check the degree of damage of the surface of the waterproof sheet after a certain period of time with the weight placed on it, There is no occurrence of tearing, breakage or breakage even if it can occur naturally.
It is known from such a test that when the waterproof sheet integrally integrated with the construction area of the present invention is produced in the field, the sheet waterproof layer can perform the role of a protecting material without installing an additional protection material on the top of the waterproof sheet Since a high-strength waterproof sheet is formed to a certain degree, it is not necessary to construct a separate protection material, so that the construction period can be shortened and the construction cost can be reduced.
Claims (2)
A glass fiber mat may be laid before the coating film waterproof layer is cured and then only the lower surface of the glass fiber mat may be attached only to the surface of the coating waterproof layer to block the ultraviolet rays upon natural curing of the coating film waterproof layer, The first rubberized asphalt coating material waterproofing material forming the coating waterproofing layer is prevented from being impregnated with the glass fiber mat and only the lower surface of the glass fiber mat is adhered to the surface of the coating waterproofing layer to form the first rubberized asphalt coating material waterproofing material Wherein the glass fiber mat is made of a breathable glass fiber mat which is compressed to a thickness of 1.0 mm to 1.2 mm in a state where one glass fiber is cut into 3 to 5 cm and dispersed in an arbitrary direction and then entangled, Lt; / RTI >
When the coating film waterproofing layer on which only the lower surface of the glass fiber mat is adhered is cured, a second rubberized asphalt coating waterproofing material having a solid content of less than 40% and a viscosity of 500 cps or less, The first waterproofing layer is applied to the top of the glass fiber mat to be absorbed or impregnated and then cured to form a waterproof layer. The waterproof layer of the waterproofing layer is strengthened by the second rubberized asphalt coating waterproofing material impregnated in the glass fiber mat And the entire construction area is formed into a single sheet structure while protecting the coating film waterproof layer formed of one waterproof layer over the entire construction area from the external force.
And a step of finishing the sheet waterproofing layer by placing a protective concrete on the top of the waterproofing layer when the sheet waterproofing layer is cured.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150044454A KR101564671B1 (en) | 2015-03-27 | 2015-03-27 | Waterproofing method, which is manufactured in the field |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150044454A KR101564671B1 (en) | 2015-03-27 | 2015-03-27 | Waterproofing method, which is manufactured in the field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102486478B1 (en) | 2022-01-24 | 2023-01-10 | 서상준 | Field-manufactured seamless structure customized urethane sheet and waterproofing construction method using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100916179B1 (en) * | 2008-11-28 | 2009-09-08 | 에이피에스엔지니어링(주) | An improved waterproofing method |
| KR101179227B1 (en) * | 2011-12-02 | 2012-09-03 | 이홍열 | Solventless asphalt coating material and the thermoplastic polyolefin sheet to use the method |
-
2015
- 2015-03-27 KR KR1020150044454A patent/KR101564671B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100916179B1 (en) * | 2008-11-28 | 2009-09-08 | 에이피에스엔지니어링(주) | An improved waterproofing method |
| KR101179227B1 (en) * | 2011-12-02 | 2012-09-03 | 이홍열 | Solventless asphalt coating material and the thermoplastic polyolefin sheet to use the method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102486478B1 (en) | 2022-01-24 | 2023-01-10 | 서상준 | Field-manufactured seamless structure customized urethane sheet and waterproofing construction method using the same |
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