CN206987071U - A kind of isolated form concrete durability reparation and protective coating structure - Google Patents
A kind of isolated form concrete durability reparation and protective coating structure Download PDFInfo
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- CN206987071U CN206987071U CN201720092493.5U CN201720092493U CN206987071U CN 206987071 U CN206987071 U CN 206987071U CN 201720092493 U CN201720092493 U CN 201720092493U CN 206987071 U CN206987071 U CN 206987071U
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Abstract
The utility model discloses a kind of isolated form concrete durability reparation and protective coating structure, it is made up of isolated form putty internal layer and weather-resistant coating outer layer, the structure can effective rehabilitating concrete surface defect, complete water proof trapping, corrosive medium corrosion concrete can be prevented, and sunshine and ultraviolet irradiation aging can be delayed, and the concrete protective coating structure of good decorative property with self-cleaning and Color tunable；The protective coating is simple in construction, and the priming coat of conventional concrete protective coating structure, screed-coat, floating coat three are combined into one, only need isolated form putty internal layer and weather-resistant coating outer layer double-layer structure, the material of use is green, and it is few using material category, construction technology is simple, good economy performance.
Description
Technical field
A kind of concrete surface protective coating structure is the utility model is related to, more particularly to a kind of isolated form concrete is durable
Property reparation and protective coating structure, belong to concrete surface protection technology field.
Background technology
Reinforced concrete structure due to draw materials extensively, the advantage such as construction is simple, cost be low and as the main of China's building
Form, but armored concrete is loose structure, be vulnerable in use in environment a variety of physical chemistry media for example water, carbon dioxide,
The erosion of acid rain etc., even if design, construction are correctly, concrete diseases also easily occur and lose durability, cause engineering to make in itself
Reduced with the time limit, and cause huge national economy to lose.Since New Century, with the large-scale infrastructure in China
Carry out, the later stage repairing and reinforcing of concrete structure engineering will become increasingly conspicuous.
The main reason for causing concrete durability to reduce：(1) carbon dioxide penetrates into caused concrete carbon in concrete
Change.(2) oxygen, water, chlorion penetrate into caused steel bar corrosion and concrete cracking in concrete.(3) acid rain, deicer salts, seawater
Concrete aging, destruction caused by penetrating into inside concrete.(4) after steam penetrates into concrete, due to being mixed caused by Frozen-thawed cycled
Hole and microscopic checks inside solidifying soil constantly extend, changed from small to big, being mutually communicated caused distress in concrete.(5) steam oozes
After entering concrete, the concrete cracking that is caused due to concrete alkali aggregate reaction.In summary, the reduction of concrete durability
Reason is the loose structure because concrete, is easily invaded, penetrates into by corrosive medium in environment, if can be on the surface of concrete
There is one layer of fine and close protection separation layer, will can improve the durability of concrete, extend its service life.
Concrete Design, construction after, the durability for improving concrete relies primarily on the surfacecti proteon of concrete, be in early days with
Screed is that the inorganic protective layer of major way, mortar overcoat convenient material drawing, construction is simple, but screed will not the rotten effects of tight defense
Fruit is poor, is unsuitable for the life requirement that increasingly improves and harsher use environment.Existing surface protection technique has osmosis type
With film-forming type structural system.Osmosis type structure mainly uses cement-base infiltration crystallization type and organosilicon osmosis type material, osmosis type
Structure provides hydrophobic effect in the range of concrete surface 2-5mm and has certain water proof anti-seepage ability, but the structure has
Gas permeability, it is impossible to prevent the etchant gases such as carbon dioxide from entering inside concrete, concrete carbonization can still occur, concrete
Durability protection is limited.A kind of concrete protective coating structure disclosed in Chinese patent CN201872393U, including permselective silane
Layer, silane hydridization air-permeable elastic separation layer, surface decoration layer.Concrete protective coating structure disclosed in the patent has ventilative
Property, it is impossible to intrusion, the corrosion of separation gas corrosive medium such as carbon dioxide, sulfur dioxide etc. to concrete, concrete is prevented
Shield effect is limited.Film-forming type structure can form one layer of fine and close overcoat in concrete surface, and water, gas can be prevented to enter concrete
Inside, there is excellent barrier propterty.Chinese patent CN203383432U discloses a kind of concrete structure coating, including
Epoxy sealer bottom, putty intermediate layer, epoxy micaceous iron oxide rustproof paint intermediate layer, fluorine carbon finishing paint layer.Concrete disclosed in the patent
Structure coating system, although concrete durability can be improved, it is made up of different four-layer structures, needs four kinds of materials, structure
System is complicated, complicated construction technique, and expense material is taken a lot of work, and cost is high.
In addition, existing concrete surface protective coating structure also has 2 weak points, first, can not be to concrete table
Planar defect is repaired well, need to be gone rehabilitating concrete surface defect with other materials before construction, be added working procedure
And materials'use, and repair materials used be mostly common building putty (latex powder, pva powder, white cement, talcum powder,
Cellulose etc. is primary raw material), the material is easily caused film and the disease such as come off, bubble because low intensity, poor water resistance, bonding are poor
Evil, concrete protection and decorative effect are directly affected, shorten the protection time limit.Second, material therefor, based on solvent-borne type, VOC is arranged
Amplification, aggravate air pollution such as haze, do not meet environment protection requirement, its application is limited, suitable for application in population
The protective coating of intensive city concrete structure such as Urban Bridge.
Utility model content
For weak point, the purpose of this utility model existing for existing concrete durability surface protection coating structure
Be be to provide one kind can effective rehabilitating concrete surface defect, complete water proof trapping, corrosive medium corrosion concrete can be prevented,
And sunshine and ultraviolet irradiation aging can be delayed, and the concrete protection of good decorative property with self-cleaning and Color tunable
Coating structure；The protective coating is simple in construction, and material is green, and few using material category, construction is simple, good economy performance.
In order to realize above-mentioned technical purpose, the utility model provides a kind of isolated form concrete durability reparation and protection
Coating structure, the structure are made up of isolated form putty internal layer and weather-resistant coating outer layer.
Concrete durability reparation provided by the utility model and protective coating structure, its internal layer use isolated form putty,
And outer layer uses weather-resistant coating, pass through the superpower bonding of isolated form putty internal layer, durability, compactness perfect adaptation weather-resistant coating
Weatherability, the self-cleaning of outer layer, a kind of high-strength, high bonding, the isolated form protective coating structure of super-durable are provided for concrete.
The isolated form putty internal layer energy rehabilitating concrete surface defect of use, moreover it is possible to form the separation layer of one layer of complete water proof trapping, energy
Effectively prevent corrosive medium from corroding, such as infiltration of water, carbon dioxide, acid rain to inside concrete, avoid corrosive medium pair
The erosion of coagulation and inner steel bar, and can prevents inside concrete alkaline matter to external migration and the performance that influences coating is for example attached
Put forth effort, significantly improve concrete durability.Isolated form putty internal layer provided by the utility model instead of traditional isolated form coagulation
Priming coat, screed-coat, the floating coat of native protective coating structure, three are combined into one, and construction is simpler, and material is also simplified, economical
Property is excellent.Meanwhile weather-resistant coating outer layer and putty internal layer adhesive force are good, energy concrete protection and putty layer are by sunshine and ultraviolet
Irradiation aging, self-cleaning and Color tunable and good decorative property.
Preferable scheme, the isolated form putty internal layer are arranged on mixed mud surface, and the weather-resistant coating outer layer is arranged on
Isolated form putty internal layer surface.The main rehabilitating concrete surface defect of isolated form putty internal layer, complete water proof trapping, can prevent corruption
Erosion medium resistance concrete is lost, and weather-resistant coating outer layer primarily serves and delays sunshine and ultraviolet irradiation aging, and can be from clearly
Clean and Color tunable and good decorative property.
Preferable scheme, the isolated form putty internal layer thickness are 0.5mm~2mm；Preferred thickness be 0.8mm~
1.2mm.Relatively conventional concrete protective coating structure, isolated form putty internal layer are traditional application priming coat, screed-coat, middle painting
Layer three is combined into one, if excessively thin, can not rehabilitating concrete surface defect well, such as some small pit-hole, cracks, while not
Can guarantee that and play a part of concrete surface reinforcement, and cannot be guaranteed separation layer compactness, it is impossible to ensure separation layer completely every
Water, trapping, and then influence to concrete protection.If blocked up, cause cost too high.
More preferably scheme, the isolated form putty internal layer are made up of epoxy putty.Isolated form epoxy putty preferentially uses
The marque of Hunan Goodbond Construction Technic Development Co., Ltd.'s production is JN-CF epoxy putties, and the epoxy putty is special
Modified double-component epoxy adhesive class material is formulated, non-volatile part content >=99%, it is mainly characterized by：Intensity itself and with
The adhesive strength of concrete is high；Exist after solidification as structure sheaf, reinforce to cut again；Can wet surface bond, dry ring
Border cohesive force is stronger；Do not shunk substantially during hardening；Aging and media-resistant aggressivity are good；Draw-off property can excellent, non-stick knife；Construction
Excellent performance, can facade or thin batch of construction of facing upward, do not trickle；Without volatile solvent, approached with concrete color.
Preferable scheme, the thickness of the weather-resistant coating outer layer is 0.05~0.15mm；Preferred thickness is 0.06~
0.10mm.If weather-resistant coating outer layer is excessively thin, the super-weathering resistance of weather-resistant coating outer layer be able to can be affected, it is impossible to ensure durable year
Limit, at the same weather-resistant coating outer layer occur reveal the exact details, do not cover, poor flatness the problems such as, and the other performance of weather-resistant coating outer layer
Such as media-resistant aggressivity, anti-stick patch, anti-liver moss, self-cleaning property, hydrophobic oleophobic, anti-dirty and rainwater self-cleaning function is difficult to protect
Card.If blocked up be likely to occur of weather-resistant coating outer layer causes the film diseases such as foaming, while also waste of materials because application is blocked up,
Cause cost too high.
More preferably scheme, the weather-resistant coating outer layer are made up of water-based fluorocarbon polymer weather-resistant coating.Weather-resistant coating is excellent
The article number first produced using Hunan Goodbond Construction Technic Development Co., Ltd. is FH-T fluorocarbon polymer weather-resistant coatings, the fluorine
Carbon polymer weather-resistant coating is a kind of aqueous fluorocarbon coating, and Oil repellent >=20% in base-material, it is mainly characterized by：Splendid attachment
Power；Splendid weatherability, ultraviolet radiation resisting can be supported, it is non-discolouring, colour-fast；Media-resistant aggressivity is good, and corrosion resistance is strong, anti-stick
Patch, anti-liver moss；Self-cleaning property is good, hydrophobic oleophobic, has anti-dirty and rainwater self-cleaning function；Using water as solvent, without volatilization
Property organic solvent, it is nonflammable, safe green environmental protection；Good decorative property, Color tunable.
The equal VOC free discharge of JN-CF epoxy putties and FH-T fluorocarbon polymer weather-resistant coatings that the utility model uses, green
Environmental protection, it is suitable for application in the protective coating of densely populated city concrete structure such as Urban Bridge.
Compared with the prior art, isolated form concrete durability reparation of the present utility model has following with protective coating structure
Beneficial effect：
First, the reparation of isolated form concrete durability and protective coating structure are by traditional isolated form concrete protection coating knot
Priming coat, screed-coat, the floating coat three of structure are combined into one, only need isolated form putty internal layer and weather-resistant coating outer layer double-layer structure, knot
Structure is simple and only with two kinds of materials, and construction technology is simple, time and labour saving, and economy is excellent.
Second, the reparation of isolated form concrete durability can be in concrete table with isolated form putty internal layer in protective coating structure
Face forms the separation layer of a water proof trapping, and the corrosive mediums such as steam in environment, carbon dioxide can be prevented to pass in and out concrete completely,
Significantly improve the durability of concrete.Meanwhile the crack of the isolated form putty internal layer energy rehabilitating concrete surface, pit-hole etc. lack
Fall into, and due to its bulk strength is high, adhesive strength is high the advantages of can effectively prevent film come off, the disease such as bubble, and
And can exist in being reinforced in the later stage as the structure sheaf that need not be cut.
Third, the reparation of isolated form concrete durability has with weather-resistant coating outer layer in protective coating structure with putty internal layer
Splendid adhesion property；Weather-resistant coating outer layer energy concrete protection and putty layer are by sunshine and ultraviolet irradiation aging, again
With the advantage such as excellent dirt-resistant, rainwater automatically cleaning, media-resistant burn into be green.
Fourth, the reparation of isolated form concrete durability is discharged with the equal VOC free of protective coating structure material therefor, green ring
Protect, the protective coating suitable for densely populated city concrete structure such as Urban Bridge.
Brief description of the drawings
Fig. 1 is the reparation of isolated form concrete durability and protective coating structural representation；
Wherein, 1 outer layer formed for weather-resistant coating, 2 be the internal layers that isolated form putty is formed, and 3 be concrete.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, and unrestricted application of the present utility model.
Embodiment 1：
As shown in figure 1, a kind of isolated form concrete durability reparation and protective coating structure, by one layer of concrete surface
Isolated form putty internal layer and the weather-resistant coating outer layer composition in isolated form putty inner layer outer surface.The isolated form putty inner-layer thick
Spend for 1.0mm.The thickness of the weather-resistant coating outer layer is 0.08mm.The isolated form putty is epoxy putty, and epoxy putty is adopted
The JN-CF epoxy putties produced with Hunan Goodbond Construction Technic Development Co., Ltd., its non-volatile part content are 99.7%；
The weather-resistant coating is water-based fluorocarbon polymer weather-resistant coating, and water-based fluorocarbon polymer weather-resistant coating uses Hunan Gu Te nations building
The FH-T fluorocarbon polymer weather-resistant coatings of Technology Dev Company Ltd.'s production, Oil repellent is 21% in its base-material.
The isolated form concrete durability reparation and the construction technology of protective coating constructive embodiment include concrete substrate
Processing, apply and scrape epoxy putty, application water-based fluorocarbon polymer weather-resistant coating.Specific construction process is as follows：
(1) native base material treatment is coagulated.Using wire brush, angle grinder or high pressure fresh water (being not less than 20MPa) by concrete surface
Floating dust, slag inclusion, liver moss and loose portions are cleaned out, and are made basal plane cleaning, are dried.
(2) apply and scrape epoxy putty.By being prepared with comparing epoxy putty bi-component, electric tool is mixed well, then with grey knife
Smear epoxy putty and carry out local damage repairing, repairing is then layered when repairing thickness is larger, then overall apply scrapes epoxy putty, side applies
Scraping compacting is levelling, and surface should connect smooth, smooth, it is proposed that construction two times, 25 DEG C are dried maintenance 72h.
(3) application water-based fluorocarbon polymer weather-resistant coating.Epoxy putty internal layer surface cleans drying, and detail sanding is carried out flat
Whole degree.Using coating process such as brushing, roller coating, air pump spraying, airless sprayings, construct two times, can be carried out second time after surface drying
Construction.Drying maintenance for 25 DEG C has protection effect in 24 hours, and rear protecting effect reaches optimal within 7 days.3d is prevented during drying maintenance
Drench with rain, wash.
It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any restrictions, thus it is every according to the technical essence of the utility model, to any trickle amendment made for any of the above embodiments, equivalent change
Change and modification, in the range of still falling within technical solutions of the utility model.
Claims (1)
1. a kind of isolated form concrete durability reparation and protective coating structure, it is characterised in that：By isolated form putty internal layer and
Weather-resistant coating outer layer is formed；The isolated form putty internal layer is arranged on concrete surface, the weather-resistant coating outer layer be arranged on every
Release putty internal layer surface；The isolated form putty internal layer thickness is 0.5mm~2mm；The thickness of the weather-resistant coating outer layer is
0.05~0.15mm；The isolated form putty internal layer is made up of epoxy putty；The weather-resistant coating outer layer is polymerize by water-based fluorocarbon
Thing weather-resistant coating is formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092493.5U CN206987071U (en) | 2017-01-22 | 2017-01-22 | A kind of isolated form concrete durability reparation and protective coating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092493.5U CN206987071U (en) | 2017-01-22 | 2017-01-22 | A kind of isolated form concrete durability reparation and protective coating structure |
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| CN206987071U true CN206987071U (en) | 2018-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265197A (en) * | 2018-08-30 | 2019-01-25 | 武大巨成结构股份有限公司 | Concrete reparation and protection isolated form coating and method |
| CN111910514A (en) * | 2020-05-27 | 2020-11-10 | 山西省交通科技研发有限公司 | Bridge anti-collision wall protection and repair system and material |
-
2017
- 2017-01-22 CN CN201720092493.5U patent/CN206987071U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265197A (en) * | 2018-08-30 | 2019-01-25 | 武大巨成结构股份有限公司 | Concrete reparation and protection isolated form coating and method |
| CN111910514A (en) * | 2020-05-27 | 2020-11-10 | 山西省交通科技研发有限公司 | Bridge anti-collision wall protection and repair system and material |
| CN111910514B (en) * | 2020-05-27 | 2021-12-10 | 山西省交通科技研发有限公司 | Bridge anti-collision wall protection and repair system and material |
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