CN106045569A - Cold-resistant and salt-resistant concrete protection coating and construction method thereof - Google Patents
Cold-resistant and salt-resistant concrete protection coating and construction method thereof Download PDFInfo
- Publication number
- CN106045569A CN106045569A CN201610383301.6A CN201610383301A CN106045569A CN 106045569 A CN106045569 A CN 106045569A CN 201610383301 A CN201610383301 A CN 201610383301A CN 106045569 A CN106045569 A CN 106045569A
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- Prior art keywords
- coating
- resistant
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- concrete
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a cold-resistant and salt-resistant concrete protection coating and a construction method thereof. The cold-resistant and salt-resistant concrete protection coating is prepared from a permeable crystallization coating, a special putty layer, a closed bottom coating, a high-weather-resistant top coating and a high-performance finish coating. The cold-resistant and salt-resistant concrete protection coating is characterized in that the surface of a concrete base body is coated with the permeable crystallization coating, and the surface of the permeable crystallization coating is sequentially provided with the special putty layer, the closed bottom coating, the high-weather-resistant top coating and the high-performance finish coating from inside to outside. The protection coating seals moisture in concrete according to the mechanism of combining permeable crystallization with multi-layer sealing and achieves the protecting and beautifying effects on a concrete structure in a special environment through the processes of a conventional construction technology.
Description
Technical field
The present invention relates to technical field of buildings, especially a kind of cold-resistant, salt tolerant concrete protection coating and construction method thereof.
Background technology
In recent years, the phenomenon of destroying concrete structure is caused gradually to increase owing to durability is not enough, concrete durability
Problem is increasingly subject to people's attention, but, due to the difference of concrete Service Environment, solve endurance issues and become abnormal
Complicated.The concrete performance deterioration caused by freeze-thaw cycle is a kind of typical endurance issues.Exacerbate in the presence of having salt
The freeze-thaw damage of concrete, once test specimen dehydration or variations in temperature occur, the saline solution in concrete is possible to produce satiety
And phenomenon, salt-pepper noise will separate out in concrete.Along with carrying out or the continuous reduction of temperature of drying and watering cycle, salt-pepper noise will constantly
Richness is long-pending and grows up, thus produces salt-pepper noise and expand, and forms crystallization and presses, and ultimately results in concrete generation salt-pepper noise and destroys.Side at this
The existing more example of face China, railway, the actual life of highway concrete bridge often can only achieve projected life
1/4th, cause the waste of huge economic loss and resource.The protective coating that current concrete is conventional also has numerous product
Class, it grows up from anticorrosion of steel structure system at all.But concrete structure erosion situation is from using environment, application
It is very different with steel constructions in feature.
Summary of the invention
It is an object of the invention to provide a kind of cold-resistant, salt tolerant concrete protection coating and construction method thereof, on solving
State technical problem.
The present invention is by the following technical solutions for achieving the above object:
A kind of cold-resistant, salt tolerant concrete protection coating, including penetrant crystalline coating, special putty layer, sealing bottom coating layer, height
Weather-proof finishing coat, high-performance finishing coat, it is characterised in that described penetrant crystalline coating is coated on the surface of concrete substrate,
Special putty layer, sealing bottom coating layer, high durable finishing coat, height is set gradually from inside to outside on the surface of described penetrant crystalline coating
Performance finishing coat.
In this programme, described penetrant crystalline coating is silicon Acrylote epoxide permeable material, and it infiltrates through coagulation soil matrix
Crystallization thickness after body is 3-7mm.
In this programme, described special putty layer thickness of wiping one's face is 0.6kg/m2, ratio of water to material is 0.4.
In this programme, the thickness of encapsulation of described sealing bottom coating layer is 2-4mm.
In this programme, described high durable finishing coat is nano modification composite acrylic acid coating, and coating thickness is 0.0-
0.2mm。
In this programme, described high-performance finishing coat is high-performance water-based resin bed, specially polyurethane coating, fluorine carbon, silicon
Third or any one or several of carbamide paint layer.
In this programme, penetrant crystalline coating, special putty layer, sealing bottom coating layer, high durable finishing coat, high-performance cover
Layer, according to being embodied as condition and degree of protection individually selects, can monolayer individually or MULTILAYER COMPOSITE uses.
A kind of cold-resistant, construction method of salt tolerant concrete protection coating, comprises the steps:
1), by penetrant crystalline coating roller coating on concrete substrate surface, altogether roller coating three times, each interval time is two little
Time；
2), use special putty according to xoncrete structure requirement, carry out filling up for bad, old concrete structure, levelling place
Reason；
3), after special putty is dry, sealing bottom coating roller coating process twice, every minor tick two hours are carried out；
4) use roller coating or spray gun to carry out high durable topcoating, brush altogether twice, five hours each interval times；
5) carry out high-performance finishing coat spraying application, the most afterwards, spray altogether twice, every minor tick one hour.Above-mentioned construction bar
Part is that temperature must not be less than 5 DEG C.
The invention has the beneficial effects as follows: the present invention can be by the water in penetrant crystalline isolation concrete internal structure external structure
Point, the breathability that macromolecule own has can be utilized again, it is ensured that the discharge of inside concrete gas, protect the machine of concrete
Structure stability, and utilize the color matching of self covering power level to reach best decoration or repairing effect.Penetrant crystalline layer can penetrate into
3-7mm in concrete substrate, forms penetrant crystalline layer, serves pore crystallization plugging action to greatest extent.Special putty
It is aided with sealing bottom coating and can again form one layer of water resisting protection layer at the concrete surface repaired, and can be overall xoncrete structure
Play certain reinforcing, planarizing effect.High durable topcoating has the durability of excellence and anti-salt as the main body of coating structure
The performance that class and other kinds chemical substance corrode with climate change.High-performance cover is as the top layer of this protection system, tool
Having good resistance to pickup, uvioresistant, adhesion strength, the topcoating of different systems is overall preventing according to the different environment that uses
Watch box system provides an important barrier action.And its construction method simply, easily operate, improve labor efficiency.
Accompanying drawing explanation
Fig. 1 is protective coating structure chart of the present invention；
In figure: 1, concrete substrate, 2, penetrant crystalline coating, 3, special putty layer, 4, sealing bottom coating layer, 5, high durable face
Coating, 6, high-performance finishing coat.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples,
The present invention is further elaborated.
As it is shown in figure 1, a kind of cold-resistant, salt tolerant concrete protection coating, including penetrant crystalline coating, special putty layer, envelope
Close priming coat, high durable finishing coat, high-performance finishing coat, it is characterised in that described penetrant crystalline coating is coated in coagulation soil matrix
On the surface of body, the surface of described penetrant crystalline coating sets gradually special putty layer, sealing bottom coating layer, high resistance to from inside to outside
Wait finishing coat, high-performance finishing coat.
In the present embodiment, described penetrant crystalline coating is silicon Acrylote epoxide permeable material, and it infiltrates through concrete
Crystallization thickness after matrix is 3-7mm, reaching not less than S11 level of independent role seepage-resistant grade.
In the present embodiment, described special putty layer thickness of wiping one's face is 0.6kg/m2, ratio of water to material is 0.4, surface drying of having constructed
Time is not more than 5h, and egress adhesive strength is not less than 0.7Mpa, and the adhesive strength after independent visibly moved circulation (5 times) is not less than
0.6Mpa。
In the present embodiment, the thickness of encapsulation of described sealing bottom coating layer is 2-4mm.
In the present embodiment, described high durable finishing coat is nano modification composite acrylic acid coating, and coating thickness is 0.0-
0.2mm.Coating surface drying time≤2h, adhesion 1 grade, freeze thawing > 50 times, washability number of times >=15000 time.With SPCE penetrant crystalline
Coating, special putty layer, and sealing bottom coating are compound, it is adaptable to also there is certain decorative appearance requirement in the more serious region of corrosive environment
Concrete structure, the composite protective time is 30-40.
In the present embodiment, described high-performance finishing coat is high-performance water-based resin bed, specially polyurethane coating, fluorine carbon,
Any one or several of silicon third or carbamide paint layer.Can be with penetrant crystalline coating, special putty, sealing bottom coating, high durable topcoating
Compound weight protection system.Severe for corrosive environment, requirement of shelter is high, guard time length and require the new of high-quality decorative outward appearance
Old concrete works, guard time can reach 40-50.
In the present embodiment, penetrant crystalline coating, special putty layer, sealing bottom coating layer, high durable finishing coat, high-performance cover
Layer, according to being embodied as condition and degree of protection individually selects, can monolayer individually or MULTILAYER COMPOSITE uses.
A kind of cold-resistant, construction method of salt tolerant concrete protection coating, execution conditions are that temperature must not be less than 5 DEG C, including
Following steps:
1), by penetrant crystalline coating roller coating on concrete substrate surface, altogether roller coating three times, each interval time is two little
Time；
2), use special putty according to xoncrete structure requirement, carry out filling up for bad, old concrete structure, levelling place
Reason；
3), after special putty is dry, sealing bottom coating roller coating process twice, every minor tick two hours are carried out；
4) use roller coating or spray gun to carry out high durable topcoating, brush altogether twice, five hours each interval times；
5) carry out high-performance finishing coat spraying application, the most afterwards, spray altogether twice, every minor tick one hour.
Specific construction example, the domestic northwestward one high-speed overpass guardrail, area is in extremely frigid zones, and high speed grade separation takes
Use as a servant more than 8 years, at the beginning of foundation, do not do any protective treatment.Concrete guardrail structure 1 observed strength is C50.The employing present invention is coated with
Layer protection system processes.Owing to grade separation runs time one length, freeze thawing salt damage effect is more obvious, needs to use putty to carry out
Repair leveling.Crystal permeability layer (2) is penetrant crystalline layer, and length of penetration is 5mm.Special putty (3) has only to fill up to be looked for
Flat, thickness is less, and therefore sealing bottom coating (4) only needs roller coating one time, then brushes twice high durable topcoating (5), and color is for repairing
The ecru of standard formulation.Application region, this place is edge, high speed road, and therefore the last finishing coat used is the poly-ammonia of extinction type aqueous
Ester coating.
The coating process of the concrete protection coating system that the present invention relates to focuses on the process of substrate concrete layer, tool
Body should be carried out according to following principle: removes all dusts, greasy dirt, the accumulation of salt in the surface soil, paint, laitance, loosening with sandblasting or giant
The outstanding foreign material with surface of wall good combination of all impacts such as mortar.After sandblasting or water under high pressure construction, remove table with wire brush
Face residual foreign material, finally construct surface with scour without sediment motion, repair the broken of concrete structural surface with healant mixing water cement mortar
At damage；The most aging loose structure thoroughly to be cut until cleaning firm basic unit, it is ensured that body structure surface is smooth intact.If
Surface and oil contaminant is seriously polluted, will thoroughly remove clc layer.Owing to greasy dirt has stronger penetration, surface texture to be cut 1 to 2
Centimetre, until the basic unit that cleaning is firm, then carry out repairing and reinforcing with healant mixing water cement mortar, it is ensured that body structure surface cleans
Firm.If structural failure seriously causes embedded bar to expose and corrosion, to conscientiously clear up Corrosion Reinforcement by following engineering method:
A, cuts the structure sheaf around reinforcing bar, makes reinforcing bar thoroughly expose.The structure sheaf at reinforcing bar two ends also to cut, and makes not
The part got rusty is had at least to expose 5 centimetres；
B, thoroughly removes the rusty stain of rebar surface with wire brush, until exposing brand-new metal surface；
C, at rebar surface brushing twice " epoxy anticorrosive paint "；
D, the part cut with concrete repair special putty repairing structure sheaf cleans firm surface to obtain.
Cold-resistant, the concrete system of salt tolerant concrete protection coating system application that the present invention proposes can follow bad by freeze-thawing resistant
More than 350 times, washability number of times reaches more than 20000 times, and spreading rate is 326.8g/m2, chloride-penetration resistance rate≤10-3mg/
(cm2·d)。
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.
Claims (9)
1. cold-resistant, a salt tolerant concrete protection coating, including penetrant crystalline coating, special putty layer, sealing bottom coating layer, high resistance to
Wait finishing coat, high-performance finishing coat, it is characterised in that described penetrant crystalline coating is coated on the surface of concrete substrate, institute
State and on the surface of penetrant crystalline coating, set gradually special putty layer, sealing bottom coating layer, high durable finishing coat, Gao Xing from inside to outside
Can finishing coat.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that described infiltration knot
Crystal coating is silicon Acrylote epoxide permeable material, and it infiltrates through the crystallization thickness after concrete substrate is 3-7mm.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that described special putty
Layer thickness of wiping one's face is 0.6kg/m2, ratio of water to material is 0.4.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that described sealing bottom coating
The thickness of encapsulation of layer is 2-4mm.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that described high durable face
Coating is nano modification composite acrylic acid coating, and coating thickness is 0.0-0.2mm.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that described high-performance cover
Surface layer is high-performance water-based resin bed, specially any one or several of polyurethane coating, fluorine carbon, silicon third or carbamide paint layer.
One the most according to claim 1 is cold-resistant, salt tolerant concrete protection coating, it is characterised in that penetrant crystalline coating,
Special putty layer, sealing bottom coating layer, high durable finishing coat, high-performance finishing coat, according to being embodied as condition and degree of protection
Individually select, can monolayer individually or MULTILAYER COMPOSITE uses.
8., according to arbitrary described cold-resistant, the construction method for salt tolerant concrete protection coating of claim 1-7, its feature exists
In, comprise the steps:
1), by penetrant crystalline coating roller coating on concrete substrate surface, roller coating three times altogether, each interval time is two hours；
2), use special putty according to xoncrete structure requirement, carry out filling up for bad, old concrete structure, leveling；
3), after special putty is dry, sealing bottom coating roller coating process twice, every minor tick two hours are carried out；
4) use roller coating or spray gun to carry out high durable topcoating, brush altogether twice, five hours each interval times；
5) carry out high-performance finishing coat spraying application, the most afterwards, spray altogether twice, every minor tick one hour.
A kind of cold-resistant, construction method of salt tolerant concrete protection coating the most according to claim 8, it is characterised in that on
Stating execution conditions is that temperature must not be less than 5 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383301.6A CN106045569A (en) | 2016-06-01 | 2016-06-01 | Cold-resistant and salt-resistant concrete protection coating and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383301.6A CN106045569A (en) | 2016-06-01 | 2016-06-01 | Cold-resistant and salt-resistant concrete protection coating and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106045569A true CN106045569A (en) | 2016-10-26 |
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| CN201610383301.6A Pending CN106045569A (en) | 2016-06-01 | 2016-06-01 | Cold-resistant and salt-resistant concrete protection coating and construction method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456756A (en) * | 2008-12-31 | 2009-06-17 | 江苏中矿大正表面工程技术有限公司 | Concrete structure heavy-duty nano composite coating and protection method |
| CN201872393U (en) * | 2010-10-14 | 2011-06-22 | 江苏中矿大正表面工程技术有限公司 | Concrete protective coating structure |
| CN202808628U (en) * | 2012-08-16 | 2013-03-20 | 浙江环球制漆集团股份有限公司 | Protection coating for concrete base |
| CN103193506A (en) * | 2013-04-26 | 2013-07-10 | 徐州工程学院 | Protective painting composite coating layer of marine concrete |
| CN203221697U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in atmospheric region |
| CN203222552U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in tidal zone |
-
2016
- 2016-06-01 CN CN201610383301.6A patent/CN106045569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456756A (en) * | 2008-12-31 | 2009-06-17 | 江苏中矿大正表面工程技术有限公司 | Concrete structure heavy-duty nano composite coating and protection method |
| CN201872393U (en) * | 2010-10-14 | 2011-06-22 | 江苏中矿大正表面工程技术有限公司 | Concrete protective coating structure |
| CN202808628U (en) * | 2012-08-16 | 2013-03-20 | 浙江环球制漆集团股份有限公司 | Protection coating for concrete base |
| CN103193506A (en) * | 2013-04-26 | 2013-07-10 | 徐州工程学院 | Protective painting composite coating layer of marine concrete |
| CN203221697U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in atmospheric region |
| CN203222552U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in tidal zone |
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Application publication date: 20161026 |
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