CN206385036U - Concrete protection flexible coating structure - Google Patents
Concrete protection flexible coating structure Download PDFInfo
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- CN206385036U CN206385036U CN201621480890.1U CN201621480890U CN206385036U CN 206385036 U CN206385036 U CN 206385036U CN 201621480890 U CN201621480890 U CN 201621480890U CN 206385036 U CN206385036 U CN 206385036U
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Abstract
The utility model discloses a kind of concrete protection flexible coating structure, mainly it is composited by four-layer structure, cement base putty layer is followed successively by from inside to outside（1）, impregnating with silane permeable formation（2）, flexible sealing separation layer（3）And surface decoration layer（4）, and impregnating with silane permeable formation（2）With flexible sealing separation layer（3）Between be concrete outer surface.Beneficial effect is to improve the durability of antiseptic concrete, the pliability of coating and outward appearance plumpness.
Description
Technical field
The utility model is related to a kind of coating structure, and in particular to a kind of concrete protection flexible coating structure, belongs to and builds
Build field of material technology.
Background technology
Concrete structure is abundant in nature storage due to raw material, builds the advantage of lower cost of building, application conditions
Low and easy construction, is widely used in engineering.Set in concrete after reinforcing bar, concrete material provides compression strength
High feature, reinforcing bar provides tensile strength high feature, has given full play to respective advantage after two kinds of material organic composites, has been formed
A kind of combination property very high construction material, can be applied in various harsh natural environments, including severe cold dry climate,
High heat and humidity weather, marine climate etc..Above-mentioned armored concrete is most important structure type in China's infrastructure, and
It will also continue to expand application in a period of time in the future.
The theory and practice experience of strength of reinforced concrete has already been through the development of some time, and its mechanism has had greatly
Scientific achievement and documents and materials are measured, and are related to the more complicated durability reason of subject more extensive, problem in science in the most a recent period of time
By the attention for also having obtained those skilled in the art and engineering staff, the high-speed developing period is in.Durability is exactly building
Gradually time span of the aging until losing function always since newly-built, in order to ensure the life security and property peace of people
Entirely, structures durability must be greater than the design life of reinforced concrete constructional work.The design of reinforced concrete building
Trend is that volume is increasing, increasingly longer using scope increasingly wider, service life, therefore is considered as endurance quality always
Good Reinforced Concrete Materials can not increasingly meet design life demand, and the problem of how to improve its durability by
Gradually show especially out.
Many Reinforced Concrete Bridges are severe due to local environment, often suffer from sewage, sunlight, aqueous vapor, dust, salt
The erosion of the corrosive mediums such as mist, aquatic organism.Armored concrete is due to by free chlorion, CO2、SO4 2-、O2、H2O's etc. invades
Erosion, causes a variety of concrete diseases such as carbonization, steel bar corrosion, concrete cracking, can directly influence the security of concrete.It is mixed
The protection that is mainly characterized by of solidifying soil corrosion is corroded in the reinforcing bar of inside concrete, and due to being difficult to find, concrete structure is produced
The Engineering Projects that crackle, flaking are even collapsed suddenly has a lot.Reported according to U.S. FHWA, american concrete building is every
The operation and maintenance cost in year needs 20,000,000,000 dollars, and continues constantly growth over time.It is Japanese annual all to concrete structure
Sea port dock carries out routine inspection, saves investigation according to Japan's transport, builds up the sea port dock of more than 20 years, there is very big mix
Solidifying soil parallel reinforced steel bar crack, if without repairing, loss may proceed to progress and become big, or even produce potential safety hazard.In China, root
According to Ministry of Communications's summarized materials statistics, national big-and-middle-sized concrete-bridge reaches more than 30,000, wherein comparing amounting to for heavy corrosion
3529, account for the 11% of concrete structured beam sum.Additionally due to some defects in design, and durable sex consciousness is not in the past
By force so that some early stage building corrosion protections are difficult, accelerate the loss of corrosion.Therefore, building etching problem is solved to show
Obtain particularly significant.
Current steel reinforced concrete erosion protection is substantially all using anticorrosion of steel structure method, i.e., will be corroded using paint coatings
Medium and armored concrete Isolated Shield.The product used is also all universal lacquer, although have research and development part concrete is special to apply
Material, but large-scale promotion is not all obtained, it is not acceptable to the market.The common anticorrosion with coat life-span is 5-8 at this stage, and heavy antisepsis is applied
Material coating is 8-12.By industry technical staff practical exploration for many years and experimental summary, China has formed a set of now
More completely it is adapted to the heavy-d uty system of concrete steel building, whole coating system is combined by bottom, intermediate layer and surface layer
Form, about 300 μm of thickness.Subbing is epoxy seal coat, and thickness is 40-50 μm, mainly plays closed base；In
Interbed mainly uses epoxy resin coating, and general thickness is larger, is 120-250 μm, coating contains flake pigment, investment precoat
Species is more, and polyurethane coating, fluorocarbon coating, polysiloxane coating materials are often used in concrete；Surface thickness is 60-80 μm.This is mixed
Protection of the solidifying soil heavy anti-corrosion paint system to armored concrete achieves certain effect, extends the durable of armored concrete
Property.But, due to directly using anticorrosion of steel structure method, its antiseptic effect is not good, and it is hard crisp system, bottom to show whole coating
Coating and matrix adhesive force are generally relatively low, and easy fall in flakes, its anti-corrosion material, technology, technique all have much room for improvement.Hard crisp system
Coating, once Local Cracking, necessarily causes whole coating system " decortication ", need to be safeguarded again every 3-5, its economy and peace
Full property is unsatisfactory.
There is substantial amounts of building to need to safeguard, repair and recoat at present, in consideration of it, either new building, still
The building used is built up all in the urgent need to a kind of concrete flexible protective coating structure, this coating must possess flexible, good
The performances such as effect of impregnation, high adhesion force and high shielding.
The content of the invention
For above-mentioned existing technical problem, in order to improve the durability of concrete structure, the utility model provides a kind of
High-flexibility, high adhesion force, the concrete protection flexible coating structure of high-weatherability, are entered with that can completely cut off extraneous corrosive medium,
It can guarantee that coating structure has good flexibility again.
To achieve the above object, the utility model provides a kind of concrete protection flexible coating structure, mainly by four layers of knot
Structure is composited, and cement base putty layer, impregnating with silane permeable formation, flexible sealing separation layer and incrustation are followed successively by from inside to outside
Layer, and be concrete outer surface between impregnating with silane permeable formation and flexible sealing separation layer.
Further, cement base putty layer adds water in mass ratio 1 using cement base powder of lacquer putty for use on:0.25-0.4 prepare stirring and
Into.Cement base putty layer and base material have a good compatibility, and main function is mending concrete surface defect, such as honeycomb,
Pitted skin, crack etc., no thickness requirement, and cement base putty layer can ensure that the impregnating depth of impregnating with silane layer is unaffected.
Further, impregnating with silane permeable formation uses butyl triethoxysilane or octyltri-ethoxysilane, and silane
Dipping permeable formation infiltrates into inside concrete 1-4mm, to provide hydrophobic effect to the scope, prevents chlorion and other corrosion from being situated between
Matter enters inside concrete by carrier of water, prevents the corrosion of Steel Bars in Concrete Structure.
Further, flexible sealing separation layer is to provide the coating of main shielding action, with high flexibility and high sealing performance.
Using the vulcanizable rubber sealant that in the market is common：Silane-terminated polyether sealant, silicone sealant or polyurethane sealant,
Thickness is 0.5-2mm.Main function is, by concrete and the isolation of external corrosion medium, to improve the durability of concrete.
Further, surface decoration layer is applied using silicon resin coating, acroleic acid polyurethane coating, fluorocarbon coating or polysiloxanes
Material, thickness is 0.04-0.15mm.Main function is to provide the aesthetic property of concrete structure, can have multiple color selection, also can
Weather resistant protection is provided to flexible sealing separation layer.
In summary, the utility model compared with prior art, possesses flexible, good effect of impregnation, high adhesion force and Gao Ping
The performances such as covering property, improve the durability of antiseptic concrete, the pliability of coating and outward appearance plumpness.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1st, cement base putty layer, 2, impregnating with silane permeable formation, 3, flexible sealing separation layer, 4, surface decoration layer.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Objective for implementation is certain domestic concrete bridge bridge pier, and concrete observed strength is C50, using the utility model coating knot
Structure carries out corrosion protection.As shown in figure 1, this coating structure is mainly composited by four-layer structure, cement is followed successively by from inside to outside
Base putty layer 1, impregnating with silane permeable formation 2, flexible sealing separation layer 3 and surface decoration layer 4, and impregnating with silane permeable formation 2 and soft
Property sealing isolation layer 3 between be concrete outer surface.
Wherein, cement base putty layer 1 is formed using the stirring that adds water of cement base powder of lacquer putty for use on；Impregnating with silane permeable formation 2 is using different
Butyl triethoxysilane；The silicon that flexible sealing separation layer 3 is produced using Jiangsu Zhongkuangdazheng Surface Engineering Techn Co., Ltd.
Alkane end capped polyether sealant DZ-MS110, thickness is 1.5mm；Surface decoration layer uses acrylic polyurethane finish paint, and thickness is
0.09mm。
The preparation process of above-mentioned coating structure is comprised the following specific steps that：
1st, the floating ash of polishing cleaning concrete surface, greasy dirt and insecure attachment；
2nd, flexible break resistant cement base powder of lacquer putty for use on adds water in mass ratio 1:0.25-0.4 is prepared, standby after stirring；
3rd, cleaning clean concrete surface, blade coating cement base putty layer 1, cover concrete comb, pitted skin, crack and
The defects such as faulting of slab ends；
4th, the roller coat isobutyl triethoxy silane after cement base putty layer 1 is completely dried solidification, is infiltrated into concrete
The depth in portion is 2mm, and consumption is about 330g/m2, dry more than 6 hours, form impregnating with silane permeable formation 2；
5th, silane modified polymer sealant is scratched again, thickness is 1.5mm, dried more than 24 hours, form flexible sealing
Separation layer 3；
6th, acrylic polyurethane finish paint is finally sprayed, thickness is 0.09mm, dries and can reach within 7 days optimal performance, form table
Face decorative layer 4.
In addition, impregnating with silane permeable formation 2 can also use octyltri-ethoxysilane, inside concrete 1-4mm is infiltrated into；It is soft
Property sealing isolation layer 3 can also use silicone sealant or polyurethane sealant, thickness is 0.5-2mm；Surface decoration layer 4 can also be adopted
With silicon resin coating, fluorocarbon coating or polysiloxane coating materials, thickness is 0.04-0.15mm.
By actually detected, this coating structure pliability, sealing, water resistance, resistance to salt water, chloride-penetration resistance are measured
Property can meet the requirement constructed, and the durability of antiseptic concrete, the pliability of coating and outward appearance plumpness are better than existing skill
Art.
Claims (8)
1. a kind of concrete protection flexible coating structure, it is characterised in that be mainly composited by four-layer structure, from inside to outside according to
Secondary is cement base putty layer（1）, impregnating with silane permeable formation（2）, flexible sealing separation layer（3）And surface decoration layer（4）, and silane
Impregnate permeable formation（2）With flexible sealing separation layer（3）Between be concrete outer surface.
2. a kind of concrete protection flexible coating structure according to claim 1, it is characterised in that described cement base is greasy
Sublayer（1）In mass ratio 1 is added water using cement base powder of lacquer putty for use on:0.25-0.4 prepares stirring and formed.
3. a kind of concrete protection flexible coating structure according to claim 1, it is characterised in that described impregnating with silane
Permeable formation（2）Using butyl triethoxysilane or octyltri-ethoxysilane.
4. a kind of concrete protection flexible coating structure according to claim 3, it is characterised in that described impregnating with silane
Permeable formation（2）Infiltrate into inside concrete 1-4mm.
5. a kind of concrete protection flexible coating structure according to claim 1, it is characterised in that described flexible sealing
Separation layer（3）Using silane-terminated polyether sealant, silicone sealant or polyurethane sealant.
6. a kind of concrete protection flexible coating structure according to claim 5, it is characterised in that described flexible sealing
Separation layer（3）Thickness is 0.5-2mm.
7. a kind of concrete protection flexible coating structure according to claim 1, it is characterised in that described incrustation
Layer（4）Using silicon resin coating, acroleic acid polyurethane coating, fluorocarbon coating or polysiloxane coating materials.
8. a kind of concrete protection flexible coating structure according to claim 7, it is characterised in that described incrustation
Layer（4）Thickness is 0.04-0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480890.1U CN206385036U (en) | 2016-12-30 | 2016-12-30 | Concrete protection flexible coating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480890.1U CN206385036U (en) | 2016-12-30 | 2016-12-30 | Concrete protection flexible coating structure |
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| Publication Number | Publication Date |
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| CN206385036U true CN206385036U (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621480890.1U Active CN206385036U (en) | 2016-12-30 | 2016-12-30 | Concrete protection flexible coating structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797873A (en) * | 2019-01-21 | 2019-05-24 | 上海岐海防腐工程技术有限公司 | A kind of Tidal zone concrete component is wrapped means of defence |
-
2016
- 2016-12-30 CN CN201621480890.1U patent/CN206385036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797873A (en) * | 2019-01-21 | 2019-05-24 | 上海岐海防腐工程技术有限公司 | A kind of Tidal zone concrete component is wrapped means of defence |
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