CN110819230A - Inclined roof with automatic snow removing function - Google Patents
Inclined roof with automatic snow removing function Download PDFInfo
- Publication number
- CN110819230A CN110819230A CN201911127283.5A CN201911127283A CN110819230A CN 110819230 A CN110819230 A CN 110819230A CN 201911127283 A CN201911127283 A CN 201911127283A CN 110819230 A CN110819230 A CN 110819230A
- Authority
- CN
- China
- Prior art keywords
- super
- roof
- snow removing
- hydrophobic coating
- removing function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
The invention discloses an inclined roof with an automatic snow removing function, which is formed by paving a roof base material, wherein a super-hydrophobic coating is arranged on the roof base material, a super-lubricating layer is also arranged on the super-hydrophobic coating, and the super-hydrophobic coating is prepared by coating and drying a super-hydrophobic coating. The roof substrate is provided with a super-hydrophobic coating and a super-lubricating layer; the nano organosilane and the silane coupling agent in the super-hydrophobic coating are matched with other components, so that a good hydrophobic effect is achieved; the super-lubricating layer plays a better lubricating role; therefore, the hydrophobic effect of the super-hydrophobic coating and the lubricating effect of the super-lubricating layer are matched, so that accumulated snow is not easy to adhere to the roof, the effect of timely and automatically removing snow on the roof is achieved, snow removing equipment is not required to be adopted for removing snow, the safety risk caused by the fact that the snow removing equipment is installed and used on the roof is avoided, and the snow removing cost is reduced.
Description
Technical Field
The invention relates to the technical field of roof design, in particular to an inclined roof with an automatic snow removing function.
Background
In general, when the snow cover is exposed to heavy snow, the accumulated snow on the roof is difficult to clean by a tool. However, the situation that the snow on the roof is not cleaned after the snow is over can cause the danger that the snow collapses the roof and the snow or ice blocks falling after being frozen into blocks can hurt people and livestock. Therefore, the accumulated snow on the roof needs to be cleaned in time; in the prior art, people usually adopt a solution to remove snow by a large fan or inclined plane cleaning equipment, but there are many safety risks in installation and use of the equipment on an inclined plane roof, and the use of the equipment wastes a large amount of energy, resulting in high snow removal cost.
Disclosure of Invention
In order to solve the above technical problems, the present invention aims to provide a sloping roof with an automatic snow removing function; this roof is through setting up super hydrophobic coating and super lubricating layer on the roof substrate for snow can't adhere to, thereby realizes the function of automatic snow removing.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme: the sloping roof with the automatic snow removing function is formed by paving a roof base material, wherein a super-hydrophobic coating is arranged on the roof base material, a super-lubricating layer is also arranged on the super-hydrophobic coating, and the super-hydrophobic coating is prepared by coating and drying a super-hydrophobic coating.
The super-hydrophobic coating comprises the following components in parts by weight: 20-60 parts of deionized water, 30-70 parts of organic solvent, 2-10 parts of nano organosilane, 0.5-3 parts of silane coupling agent, 0.01-0.5 part of catalyst, 0.1-0.5 part of auxiliary agent and 1-10 parts of tackifier.
In the super-hydrophobic coating, the organic solvent is selected from one or the combination of more than two of methanol, ethanol, isopropanol, acetone, butane and hexane; the catalyst is selected from stannous chloride, toluene sulfonic acid-dibutyl tin oxide, Pt-N (C)2H5)3One or a combination of more than two of a complex and stannous octoate; the auxiliary agent is one or the combination of more than two of a flatting agent, a dispersing agent and an ultraviolet absorbent; the tackifier is selected from one or more of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer, and polyurethaneAnd (4) combining.
In the super-hydrophobic coating, the nano organosilane is silane containing methyl, ethyl or long-chain alkyl; the silane coupling agent is a silane coupling agent containing unsaturated groups or epoxy hydrocarbon groups.
Preferably, the material of the super-lubricating layer is selected from one or a combination of more than two of silicone oil, liquid silica gel, silicone grease or other lubricants.
Preferably, the roof substrate is one of glass, clay, tile, metal, stone, wood or cement.
As a further improvement of the technical scheme of the invention, the surface of the roof substrate can be coated with paint or waterproof coating to realize better waterproof effect.
As a further improvement of the technical scheme, an infiltration layer can be arranged between the roof base material and the super-hydrophobic coating so as to improve the infiltration and cohesiveness of the roof base material and ensure good combination between the super-hydrophobic coating and the roof base material; the material of the infiltration layer is selected from one or the combination of more than two of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane and epoxy bisphenol A resin; the thickness of the wetting layer is 1 to 20 μm.
Furthermore, the thickness of the super-hydrophobic coating is 1-20 microns, and the thickness of the super-lubricating layer is 1-20 microns.
Further, the sloping roof has an angle of inclination of more than 25 °.
The invention has the beneficial effects that:
the roof substrate is provided with a super-hydrophobic coating and a super-lubricating layer; the nano organosilane and the silane coupling agent in the super-hydrophobic coating are matched with other components, so that a good hydrophobic effect is achieved; the super-lubricating layer plays a better lubricating role; therefore, the hydrophobic effect of the super-hydrophobic coating and the lubricating effect of the super-lubricating layer are matched, so that accumulated snow is not easy to adhere to the roof, the effect of timely and automatically removing snow on the roof is achieved, snow removing equipment is not required to be adopted for removing snow, the safety risk caused by the fact that the snow removing equipment is installed and used on the roof is avoided, and the snow removing cost is reduced.
Drawings
Fig. 1 is a schematic view of the structure of a sloping roof according to the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The invention provides an inclined roof with an automatic snow removing function, which is formed by paving a roof substrate 1, as shown in figure 1, a super-hydrophobic coating 2 is arranged on the roof substrate 1, a super-lubricating layer 3 is also arranged on the super-hydrophobic coating 2, and the super-hydrophobic coating 2 is prepared by coating and drying a super-hydrophobic coating; wherein, the thickness of the super-hydrophobic coating 2 is 1-20 μm, the thickness of the super-lubricating layer 3 is 1-20 μm, and the inclination angle of the sloping roof is more than 25 degrees.
The super-hydrophobic coating comprises the following components in parts by weight: 20-60 parts of deionized water, 30-70 parts of organic solvent, 2-10 parts of nano organosilane, 0.5-3 parts of silane coupling agent, 0.01-0.5 part of catalyst, 0.1-0.5 part of auxiliary agent and 1-10 parts of tackifier.
In the super-hydrophobic coating, the organic solvent is selected from one or the combination of more than two of methanol, ethanol, isopropanol, acetone, butane and hexane; the catalyst is selected from stannous chloride, toluene sulfonic acid-dibutyl tin oxide, Pt-N (C)2H5)3One or a combination of more than two of a complex and stannous octoate; the auxiliary agent is one or the combination of more than two of a flatting agent, a dispersing agent and an ultraviolet absorbent; the tackifier is selected from one or more of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer and polyurethane.
In the super-hydrophobic coating, the nano organosilane is silane containing methyl, ethyl or long-chain alkyl; the silane coupling agent is a silane coupling agent containing unsaturated groups or epoxy hydrocarbon groups.
In the sloping roof, the material of the super lubricating layer 3 is selected from one or the combination of more than two of silicone oil, liquid silica gel, silicone grease or other lubricants.
In the sloping roof, the roof substrate 1 is one of glass, pottery clay, tile, metal, stone, wood or cement.
The surface of the roof substrate 1 may be further coated with paint or waterproof coating to achieve a better waterproof effect.
In addition, an infiltration layer can be arranged between the roof base material 1 and the super-hydrophobic coating 2 so as to improve the infiltration and the cohesiveness of the roof base material and improve the binding force between the super-hydrophobic coating and the roof base material; the material of the infiltration layer is selected from one or the combination of more than two of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane and epoxy bisphenol A resin; the thickness of the wetting layer is 1 to 20 μm.
Specific examples are set forth in detail below.
Examples
Firstly, preparing a super-hydrophobic coating solution, wherein the super-hydrophobic coating solution comprises the following components in parts by weight: 30 parts of deionized water, 60 parts of organic solvent, 5 parts of nano organosilane, 3 parts of silane coupling agent, 0.5 part of catalyst, 0.5 part of auxiliary agent and 1 part of tackifier; wherein the organic solvent is ethanol, the nano organosilane is trifluoropropyltrimethoxysilane, and the silane coupling agent is gamma-glycidoxypropyltrimethoxysilane;
selecting tiles as a roof substrate, coating the super-hydrophobic coating solution on the surface of the roof substrate, and drying at 150 ℃ for 10min to obtain a super-hydrophobic coating; the thickness of the super-hydrophobic coating is 5 mu m;
coating liquid silica gel on the surface of the super-hydrophobic coating to serve as a super-lubricating layer, wherein the thickness of the super-lubricating layer is 3 microns;
and (3) paving the roof base material coated with the super-hydrophobic coating and the super-lubricating layer to form the sloping roof with the inclination angle of 45 degrees.
Comparative example 1
And paving the tile by using an untreated tile base material to form a sloping roof with an inclination angle of 45 degrees.
Comparative example 2
Coating liquid silica gel on the tile base material, wherein the thickness of the liquid silica gel is 3 mu m, and the tile base material coated with the liquid silica gel is utilized for laying to form an inclined roof with an inclined angle of 45 degrees.
Comparison of effects
The roofing materials prepared in examples, comparative examples 1 and 2 were placed in snowing areas or snowing environments simulated by a manual laboratory, wherein the roofing materials during the test all had an inclination angle of 45 °; by contrast, the roof material of the embodiment has almost no snow, and realizes the function of automatic snow removal.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The sloping roof with the automatic snow removing function is characterized in that the sloping roof is formed by laying a roof base material, a super-hydrophobic coating is arranged on the roof base material, a super-lubricating layer is arranged on the super-hydrophobic coating, and the super-hydrophobic coating is prepared by coating and drying a super-hydrophobic coating.
2. A sloping roof with automatic snow removing function as claimed in claim 1, wherein said super-hydrophobic paint comprises the following components in parts by weight: 20-60 parts of deionized water, 30-70 parts of organic solvent, 2-10 parts of nano organosilane, 0.5-3 parts of silane coupling agent, 0.01-0.5 part of catalyst, 0.1-0.5 part of auxiliary agent and 1-10 parts of tackifier.
3. A sloping roof with automatic snow removing function as claimed in claim 1, wherein said organic solvent is selected from one or a combination of more than two of methanol, ethanol, isopropanol, acetone, butane and hexane; the catalyst is selected from stannous chloride, toluene sulfonic acid-dibutylTin oxide, Pt-N (C)2H5)3One or a combination of more than two of a complex and stannous octoate; the auxiliary agent is one or the combination of more than two of a flatting agent, a dispersing agent and an ultraviolet absorbent; the tackifier is selected from one or the combination of more than two of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer and polyurethane.
4. A sloping roof with an automatic snow removing function as claimed in claim 1, wherein said nano-organosilane is a silane containing methyl, ethyl or long-chain alkyl; the silane coupling agent is a silane coupling agent containing unsaturated groups or epoxy hydrocarbon groups.
5. A sloping roof with automatic snow removing function as claimed in claim 1, wherein the material of said super-lubricating layer is selected from one or more of silicone oil, liquid silicone, silicone grease or other lubricant.
6. A sloping roof with automatic snow removing function as claimed in claim 1, wherein said roof substrate is one of glass, clay, tile, metal, stone, wood or cement.
7. A sloping roof with automatic snow removing function as claimed in claim 1, wherein the surface of said roof substrate is further coated with paint or waterproof coating.
8. The sloping roof with the automatic snow removing function as claimed in claim 1, wherein a wetting layer is further arranged between the roof substrate and the super-hydrophobic coating, the material of the wetting layer is selected from one or a combination of more than two of polyvinyl alcohol, polyvinyl butyral, ethylene-vinyl acetate copolymer, polyurethane and epoxy bisphenol A resin, and the thickness of the wetting layer is 1-20 μm.
9. A sloping roof with automatic snow removing function as claimed in claim 1, wherein the super-hydrophobic coating layer has a thickness of 1-20 μm and the super-lubricating layer has a thickness of 1-20 μm.
10. A sloping roof with an automatic snow removing function as claimed in claim 1, wherein the angle of inclination of the sloping roof is greater than 25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127283.5A CN110819230A (en) | 2019-11-18 | 2019-11-18 | Inclined roof with automatic snow removing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127283.5A CN110819230A (en) | 2019-11-18 | 2019-11-18 | Inclined roof with automatic snow removing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110819230A true CN110819230A (en) | 2020-02-21 |
Family
ID=69556269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911127283.5A Pending CN110819230A (en) | 2019-11-18 | 2019-11-18 | Inclined roof with automatic snow removing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110819230A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11130987A (en) * | 1997-10-29 | 1999-05-18 | Hideaki Tanaka | Snow-removing coating material and method for removing snow |
| CN105694711A (en) * | 2015-11-27 | 2016-06-22 | 浙江大学 | Super-smooth self-cleaning coating and preparation method thereof |
| WO2016176350A1 (en) * | 2015-04-27 | 2016-11-03 | The Regents Of The University Of Michigan | Durable icephobic surfaces |
| CN107500561A (en) * | 2017-08-07 | 2017-12-22 | 烟台大学 | High transparency, super lubrication, from glass coating of additional properties and its preparation method and application |
| CN208379923U (en) * | 2018-04-16 | 2019-01-15 | 广州瑞芙特建筑技术有限公司 | A kind of waterproof hydrophobic metal roof structure |
| CN109651953A (en) * | 2018-12-28 | 2019-04-19 | 苏州浩纳新材料科技有限公司 | A kind of super hydrophobic coating and preparation method thereof with flame retardant effect |
-
2019
- 2019-11-18 CN CN201911127283.5A patent/CN110819230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11130987A (en) * | 1997-10-29 | 1999-05-18 | Hideaki Tanaka | Snow-removing coating material and method for removing snow |
| WO2016176350A1 (en) * | 2015-04-27 | 2016-11-03 | The Regents Of The University Of Michigan | Durable icephobic surfaces |
| CN105694711A (en) * | 2015-11-27 | 2016-06-22 | 浙江大学 | Super-smooth self-cleaning coating and preparation method thereof |
| CN107500561A (en) * | 2017-08-07 | 2017-12-22 | 烟台大学 | High transparency, super lubrication, from glass coating of additional properties and its preparation method and application |
| CN208379923U (en) * | 2018-04-16 | 2019-01-15 | 广州瑞芙特建筑技术有限公司 | A kind of waterproof hydrophobic metal roof structure |
| CN109651953A (en) * | 2018-12-28 | 2019-04-19 | 苏州浩纳新材料科技有限公司 | A kind of super hydrophobic coating and preparation method thereof with flame retardant effect |
Non-Patent Citations (2)
| Title |
|---|
| 吴德权等: "超滑表面（LIS/SLIPS）的设计与制备研究进展", 《表面技术》 * |
| 韦存茜: "氟硅超浸润表面的构建及其在防污/防覆冰领域中的应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1114008B1 (en) | Compositions and methods to protect calcitic and/or siliceous surfaces | |
| KR101891565B1 (en) | Wet-curing cement mortar composition and method for protecting surface of concrete structure therewith | |
| CN105694715A (en) | Preparation method of SiO2/PDMS composite transparent super hydrophobic coating | |
| KR101461198B1 (en) | L-shaped ditch of the road for the repair of concrete repair materials and construction methods | |
| JP2000154368A (en) | Modified silicone-based sealing material for construction | |
| KR20120021780A (en) | Low smell pavement composition with heat shield function and pavement construction method employing the same | |
| KR101749639B1 (en) | Rapid-hardening polymer concrete composition and concrete pavement method using the same | |
| CN111909578A (en) | Semitransparent multifunctional water-based paint | |
| CN110819230A (en) | Inclined roof with automatic snow removing function | |
| CN109233600B (en) | Long-acting hydrophobic ice inhibition coating and preparation method thereof | |
| KR100920025B1 (en) | Concrete composition for pavement of bridge and construction method using the same | |
| KR102207899B1 (en) | Coating Composition for Wet Surface Adhesion and Construction Methods for Repairing and Reinforcing Crack of Concrete Structure Using Thereof | |
| CN109721321A (en) | A kind of preparation method of ardealite based self-leveling material | |
| CN112160212B (en) | Anti-freezing asphalt pavement structure and method for preparing pavement material by using same | |
| KR102213597B1 (en) | Waterproof Construction Method for Maintenance of Asphalt Shingle Roof Using Water-Soluble Acrylate Waterproof Agents with Superior Heat Resistance | |
| KR102181532B1 (en) | Concrete composition and construction method for repair of transportation facilities | |
| CN108864882B (en) | Self-lubricating anti-icing coating and preparation method thereof | |
| KR101050740B1 (en) | Concrete composition for preventing freeze and method for paving road employing the same | |
| KR100614005B1 (en) | Method for forming of prevention of sticking | |
| KR102031130B1 (en) | Self adhesive waterproof sheet | |
| KR101824981B1 (en) | Reformable packaging material Construction method using composition of packaging material and surface treatment machine | |
| KR20050051590A (en) | Method for forming of prevention of sticking | |
| KR102207015B1 (en) | Water-Impermeable Waterproof Asphalt Concrete Compositions Comprising Urethane Resin and Constructing Methods Using Thereof | |
| CN113185916B (en) | Anti-corrosion composite coating for steel rail fastener elastic strip and bolt spike, and preparation method and coating method thereof | |
| KR100880928B1 (en) | Mortar composition for impregnant of bridge and pavement construction method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |
|
| RJ01 | Rejection of invention patent application after publication |