CN203221697U - Silane composite protective coating of marine concrete in atmospheric region - Google Patents
Silane composite protective coating of marine concrete in atmospheric region Download PDFInfo
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- CN203221697U CN203221697U CN 201320218564 CN201320218564U CN203221697U CN 203221697 U CN203221697 U CN 203221697U CN 201320218564 CN201320218564 CN 201320218564 CN 201320218564 U CN201320218564 U CN 201320218564U CN 203221697 U CN203221697 U CN 203221697U
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Abstract
The utility model relates to a silane composite protective coating of marine concrete in atmospheric region. The silane composite protective coating is formed by compounding three layers of structures coated on the surface of a concrete matrix, wherein the three layers of structures are sequentially as follows from inside to outside: a silane impregnation layer, an epoxy primer layer and a finish layer, and according to the silane composite protective coating of marine concrete in atmospheric region, coating is coated on the basis of silane impregnation, so that the advantages of the two technologies are comprehensively integrated, permanent protection on the marine concrete can be realized and the condition that the engineering service life of the concrete achieves or even exceeds the design requirement is ensured.
Description
Technical field
The utility model relates to a kind of protective coating of maritime concrete matrix, and especially a kind of maritime concrete is at the silane compound protective coating of atmospheric region.
Background technology
Though it is so abominable unlike the environment in tidal range district to be in the concrete works of marine atmosphere zone, but air contains materials such as a large amount of water vapours, chlorion, carbon dioxide, oxygen, sulfur dioxide, concrete works is produced bigger corrosion and destruction, make the aging quickening of concrete substrate, inner reinforcing bar is caused corrosion, influence the life-span of maritime works's engineering.At this situation, generally in the processing of maritime concrete adopt the silane impregnation process or with the application of epoxy paint vehicle, the surface tension of formed base material is far below the surface tension of water after the silane impregnation process, and produce capillary against the air pressure phenomenon, the silicones water-repellent layer and the concrete combination that form because of chemical reaction are that an integral body makes base material have certain toughness, waterproof and breathable, the antioxygen ion is strong, and can penetrate into 8～10mm in the concrete substrate, prevent that the base material cracking from remedying the following crack of 0.2mm.
But in the process of silane impregnation process, because of the influence of factors such as silane consumption, coating process, environment temperature, concrete surface humidity, the length of penetration of silane, tack are reduced, and silane is aging fast, can't reach lasting, desirable protection effect; After concrete surface layer was infiltrated at the silane place, it scolded the water effect that concrete water content is reduced, and has made things convenient for the diffusion of CO2 to inside concrete, has deepened the carbonation depth of concrete substrate.
The epoxy coating protection system can effectively protect the concrete substrate top layer, and coating toughness and ornamental better is aging slow, but its resisting chloride ion penetration poor-performing, and can't infiltrate concrete substrate inside.
The utility model content
In order to address the above problem; the utility model proposes a kind of maritime concrete at the silane compound protective coating of atmospheric region; be to carry out paint spraying on the basis of silane dipping; fully integrate the advantage of utilizing two kinds of technology; realization is to the permanent protection of maritime concrete, guarantees that concrete works meets or exceeds designing requirement service life.
The utility model is achieved through the following technical solutions: this maritime concrete is at the silane compound protective coating of atmospheric region, be composited by the three-decker that is coated in the concrete base surface, be followed successively by from inside to outside: silane impregnate layer, epoxy intermediate layer and top coat layer.
The thickness in described epoxy intermediate layer is 220 μ m, is with the thickness of epoxy intermediate coat with per pass 110 μ m, brushes 2 times in the surface of silane impregnate layer; The thickness of described top coat layer is 80 μ m.
Described silane impregnate layer is to form for 2 times with the surface that every consumption all over 300g/ ㎡ is painted on concrete substrate with silane impregnating agent, and be at least 6h blanking time between the two procedures, also can adopt lotion product application 1 road.
The chemical bond of silane and concrete substrate can be divided into for four steps: the first step is hydrolytic process; Second step was condensation course; The 3rd step reacted for the water in polycondensation product and the concrete substrate, with hydrogen bonding; The 4th step formed silicones for dehydrating condensation.
The protection principle of silane dipping is: utilize the special small molecule structure of silane, penetrate concrete top layer, be penetrated into tens to tens millimeters of inside concretes, be distributed in concrete pore inwall, even reach on the capillary hole wall of minimum, in pore under the effect of air, water, silane hydrolyzate forms silanol, hydroxyl reaction forms end and has-siloxane chain of Si-R* base in newly-generated silanol and the silicate, and mutually condensation substrate surface form one deck firm, hard and soft scold the cancellated silicones water-repellent layer of water layer.
The beneficial effects of the utility model are: this maritime concrete is at the silane compound protective coating of atmospheric region; be to carry out paint spraying on the basis of silane dipping; fully integrate the advantage of utilizing two kinds of technology; realization is to the permanent protection of maritime concrete, guarantees that concrete works meets or exceeds designing requirement service life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is that this maritime concrete is at the structural representation of the silane compound protective coating of atmospheric region.
Among the figure, 1. concrete substrate, 2. silane impregnate layer, 3. epoxy intermediate layer, 4. top coat layer.
The specific embodiment
In accompanying drawing 1, this maritime concrete is composited by the three-decker that is coated in concrete substrate 1 surface at the silane compound protective coating of atmospheric region, is followed successively by from inside to outside: silane impregnate layer 2, epoxy intermediate layer 3 and top coat layer 4.
The thickness in described epoxy intermediate layer 3 is 220 μ m, is with the thickness of epoxy intermediate coat with per pass 110 μ m, brushes 2 times in the surface of silane impregnate layer 2; The thickness of described top coat layer 4 is 80 μ m.
Described silane impregnate layer 2 is to form for 2 times with the surface that every consumption all over 300g/ ㎡ is painted on concrete substrate 1 with silane impregnating agent, and be at least 6h blanking time between the two procedures, also can adopt lotion product application 1 road.
This maritime concrete the steps include: (1) concrete works surface treatment at the coating process of the silane compound protective coating of atmospheric region: because of cleannes, humidity, the flatness difference of concrete surface, be divided into basic handling, slightly processing and severe processing;
Basic handling: treat the application surface with giant flushing concrete works, dry the surface with rag again, guarantee that concrete surface does not have open fire;
The light processing: residual to firm attachment thing invariably, non-mold release agent with angle grinding machine polishing concrete surface, treat application face with the giant flushing, dry the surface with rag again, the no open fire in surface, natural air drying 15min;
Heavily handle: residual to firm attachment thing invariably, non-mold release agent with angle grinding machine polishing concrete surface, treat application face with the giant flushing, dry the surface with rag again, the no open fire in surface, the hot blast drying concrete surface is drying as far as possible; (2) application: be coated on concrete substrate 1 surface of handling with silane product earlier, every is 300g/ ㎡ all over consumption, brushes 2 times; At 2 times thick epoxy intermediate coats of 110 μ m of silane impregnate layer 2 external coatings; Last 2 times thick finish paints of 40 μ m of external coating in epoxy intermediate layer 3.
A kind of maritime concrete that the utility model proposes is in the resistance to salt water 〉=480h of the silane compound protective coating of atmospheric region, alkali resistance 〉=720h, weatherability 〉=1000h, chloride-penetration resistance rate≤10
-3Mg/ (cm
2* 0.1), adhesive force 〉=1.5mPa.
Claims (2)
1. a maritime concrete is at the silane compound protective coating of atmospheric region, it is characterized in that: be composited by the three-decker that is coated in concrete substrate (1) surface, be followed successively by from inside to outside: silane impregnate layer (2), epoxy intermediate layer (3) and top coat layer (4).
2. according to the silane compound protective coating of the described a kind of maritime concrete of claim 1 at atmospheric region, it is characterized in that: the thickness in described epoxy intermediate layer (3) is 220 μ m; The thickness of described top coat layer (4) is 80 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218564 CN203221697U (en) | 2013-04-26 | 2013-04-26 | Silane composite protective coating of marine concrete in atmospheric region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218564 CN203221697U (en) | 2013-04-26 | 2013-04-26 | Silane composite protective coating of marine concrete in atmospheric region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203221697U true CN203221697U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320218564 Expired - Fee Related CN203221697U (en) | 2013-04-26 | 2013-04-26 | Silane composite protective coating of marine concrete in atmospheric region |
Country Status (1)
| Country | Link |
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| CN (1) | CN203221697U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193506A (en) * | 2013-04-26 | 2013-07-10 | 徐州工程学院 | Protective painting composite coating layer of marine concrete |
| CN106045569A (en) * | 2016-06-01 | 2016-10-26 | 西安斯派新材料科技有限公司 | Cold-resistant and salt-resistant concrete protection coating and construction method thereof |
| CN106436565A (en) * | 2016-09-07 | 2017-02-22 | 中国铁路总公司 | Concrete protection coating and concrete protection method |
| CN109577279A (en) * | 2019-01-04 | 2019-04-05 | 杭州国电大坝安全工程有限公司 | The concrete surface protective coating and its construction method of high antistripping |
-
2013
- 2013-04-26 CN CN 201320218564 patent/CN203221697U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193506A (en) * | 2013-04-26 | 2013-07-10 | 徐州工程学院 | Protective painting composite coating layer of marine concrete |
| CN106045569A (en) * | 2016-06-01 | 2016-10-26 | 西安斯派新材料科技有限公司 | Cold-resistant and salt-resistant concrete protection coating and construction method thereof |
| CN106436565A (en) * | 2016-09-07 | 2017-02-22 | 中国铁路总公司 | Concrete protection coating and concrete protection method |
| CN109577279A (en) * | 2019-01-04 | 2019-04-05 | 杭州国电大坝安全工程有限公司 | The concrete surface protective coating and its construction method of high antistripping |
| CN109577279B (en) * | 2019-01-04 | 2024-03-01 | 杭州国电大坝安全工程有限公司 | High-stripping-resistance concrete surface protective coating and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140426 |