CN109797873A - A kind of Tidal zone concrete component is wrapped means of defence - Google Patents
A kind of Tidal zone concrete component is wrapped means of defence Download PDFInfo
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- CN109797873A CN109797873A CN201910053493.8A CN201910053493A CN109797873A CN 109797873 A CN109797873 A CN 109797873A CN 201910053493 A CN201910053493 A CN 201910053493A CN 109797873 A CN109797873 A CN 109797873A
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- concrete component
- silane
- component matrix
- modified polymer
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- 239000004567 concrete Substances 0.000 title claims abstract description 163
- 239000000565 sealant Substances 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 37
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910000077 silane Inorganic materials 0.000 claims abstract description 36
- 230000004224 protection Effects 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims description 101
- 239000003707 silyl modified polymer Substances 0.000 claims description 60
- 239000002390 adhesive tape Substances 0.000 claims description 54
- 238000000576 coating method Methods 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000012545 processing Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000005345 coagulation Methods 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 239000002318 adhesion promoter Substances 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 7
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- -1 dosage 80-100g/m2 Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 4
- 230000008439 repair process Effects 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 238000004826 seaming Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- UGZICOVULPINFH-UHFFFAOYSA-N acetic acid;butanoic acid Chemical compound CC(O)=O.CCCC(O)=O UGZICOVULPINFH-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229920013822 aminosilicone Polymers 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical group CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 150000004678 hydrides Chemical class 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920005749 polyurethane resin Polymers 0.000 claims description 2
- 239000004526 silane-modified polyether Substances 0.000 claims description 2
- 239000004432 silane-modified polyurethane Substances 0.000 claims description 2
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical group CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 2
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 claims description 2
- 238000006748 scratching Methods 0.000 claims 2
- 230000002393 scratching effect Effects 0.000 claims 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 45
- 239000010410 layer Substances 0.000 description 40
- 230000007797 corrosion Effects 0.000 description 14
- 238000012913 prioritisation Methods 0.000 description 9
- 239000013535 sea water Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 239000004811 fluoropolymer Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
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- 239000003566 sealing material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 125000001047 cyclobutenyl group Chemical group C1(=CCC1)* 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000007667 floating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 239000000693 micelle Substances 0.000 description 1
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- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Landscapes
- Sealing Material Composition (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
It is wrapped means of defence the present invention relates to a kind of Tidal zone concrete component, for the special harsh synthesis corrosive environmental factors in Tidal zone, it is wrapped guard technology using PVF, it is modified sealant sealing protection and Nian Jie transitional technology in conjunction with impregnating with silane, dedicated primary coat, novel silane, realizes and the reliable durable of Tidal zone concrete component is protected.The method of the present invention technology easy construction, quick, energy conservation and environmental protection, efficiently, persistently, reliably, economic results in society are significant for the protection system anti-corrosion effect that is wrapped, and have good popularization and application foreground.
Description
Technical field
The present invention relates to concrete surface corrosion protection technologies, and in particular to a kind of Tidal zone concrete component is wrapped protection
Method belongs to antiseptic project technical field.
Background technique
China is ocean big country, and offshore long-span-bridge and the construction of other harbour engineerings continue to develop, ocean infrastructure power
Degree further strengthens, and quickly propels to national harbour and engineering of clearing out a harbour along the line, therefore marine economy becomes the important warp in China
Help component part, and the etching problem of the reinforced concrete works in marine environment is also increasingly by the height of field of engineering technology
Pay attention to.More unified understanding is achieved to the durable Journal of Sex Research of ocean concrete both at home and abroad, wherein it is durable to influence concrete
Property is main because being known as: (1) chlorine salt corrosion；(2) sulphate corrosion；(3) concrete carbonization；(4) freeze-thaw damage；(5) Plant ecology
Reaction etc..The wherein infiltration of chloride ion and be destructive factor the most typical to the corrosion of reinforcing bar.
But it is existing research shows that marine environment is different from general corrosion environment, a but harsher and complicated corruption
Environment is lost, marine corrosion environment is divided into marine atmosphere zone, splash zone, Tidal zone, underwater area and area, 5, ooze area from top to bottom
Domain, wherein seawater Tidal zone and splash zone are the most severe regions of corrosive environment in ocean engineering, which not only relates to
And alternation of wetting and drying problem, there are also the sputtering of wave, water flow mud-sands to wash away, marine organisms corrode, foreign matter collision the problems such as, lead to this
Region aging speed is especially accelerated, and causes to corrode to internal reinforcing bar, influences the service life of marine structure.Technical staff's investigation
It also indicates that, is in the concrete works in marine environment in China, using post-etching and be damaged quite seriously, need regular dimension
It repairs, brings very huge economic loss to society.The harbour engineering that China was built before the nineties will generally be gone out using 10~20aa
Existing steel bar corrosion seriously destroys, and structure service life is substantially less than design requirement.
It has had studied much for the concrete member corrosion prevention method and technology personnel of splash zone and Tidal zone, has such as increased
Thickness of concrete cover, addition concrete corrosion resistant agent, using epoxy-coated reinforcement, impregnating with silane, additional coating protection and it is right
Reinforcing bar electrochemical protection etc..Most commonly used at present is additional coating Protection Code, i.e., in the side of concrete outer surface coating coating
Method actively recommends concrete surface coating if JT J 275-2000 " concrete for marine works structural anticorrosion loses technical specification "
The technologies such as protection, impregnating with silane.
A kind of concrete protective coating structure of CN201872393 bulletin, is combined by three-decker, three-decker from
It is interior to be followed successively by the ventilative separation layer of impregnating with silane agent permeable formation, silane hydridization elastic coating and surface decoration layer, surface dress to outer
Decorations layer is weatherability coating coating；CN206385036 discloses a kind of concrete protection flexible coating structure, is mainly tied by four layers
Structure is combined, and is followed successively by the flexible sealing isolation that cement base putty layer, impregnating with silane permeable formation, sealant are formed from inside to outside
Layer and weather-resistant coating surface decoration layer.Above-mentioned technology and similar techniques material are with additional coating to coagulation under general corrosion environment
The protection of the concrete structural surface of atmospheric region all achieves good effect under soil structure surface and marine environment, but in tidal range
But there is coating shedding problem to area's concrete structural surface in (3-5a) early, to find out its cause, by concrete substrate property and painting
The adhesive force of the influence of layer primary coat mass effect, coating and concrete substrate is low, only 1 ~ 3MPa；And concrete substrate is handled
Not in place, easily appearance charing, alkali-aggregate reaction, the aging damages situation such as freeze thawing are protected, coating faying face is caused to destroy, take off
It falls, corrosion-inhibiting coating system is caused to fail；Secondly, this method and process process is complicated, to complete entire coating and generally want coating 4 ~ 7
Road coating, and per pass coating all needs curing time 4 ~ just can be carried out lower road coating for 24 hours, therefore the coating period is very long, in tide
Engineering under poor area's environment is difficult to construct；Finally, durability of the paint coatings under marine environment is low, general 5 ~ 10a is just
It is thoroughly repaired, maintenance cost is even more taller than coating for the first time.
Although existing improved moisture curing coating system laboratory test result of study is good, in certain bridge pier over the sea
There is a wide range of coating shedding problem less than 3a after practical application on the concrete pier of Tidal zone, illustrates Tidal zone concrete works
Complex working condition problem that scene faces, Quality Control Factors are also the key factor of technical application success.
It is disclosed for the undesirable situation of Tidal zone paint coatings system protection effect, CN102383619 under marine environment
The method of Tidal zone and the processing of splash zone concrete member corrosion prevention, first coats concrete outer surface under a kind of marine environment
One of impregnating with silane agent, penetration depth are greater than 1mm；After natural air drying, one layer of silane-terminated polyether sealant is scratched, with a thickness of 2 ~
5mm；Coat prefabricated protective cover immediately after the completion；One of sealant is scratched in protective cover；Shield upper and lower ends and corner use close
Sealing carries out Seal treatment；Cladding system is integrally coated with weather-proof finishing coat；There is no solve concrete substrate surface for the technology
Interfacial instabilities and the destructible problems such as easy charing, freeze thawing, cause sealant Nian Jie with concrete substrate poor, easily peelable, seawater
It will directly be invaded after being impregnated with and be seeped into concrete substrate surface.It is anti-that CN104120743 then discloses concrete-pile in a kind of marine environment
Maintaining method first polishes to concrete-pile surface, then sprays epoxy primer layer and epoxy intermediate paint layer on stake surface, to
Anti-corrosion belt is wound above it after painting layer solidification, is further carried out cladding fastening with prefabricated armor later, is then existed
Upper and lower ends and flange connections fill cured epoxy adhesive in water after the armor cladding fastening.The technology is in original painting
Additional prefabricated armor on the basis of layer protection system, although eliminating seawater scouring influence, existing for former coating protection system
Technical problem does not solve.Above-mentioned protective jacket, armor etc. are to be prepared by polyester resin for main material, according to the prior art at
Fruit is obviously unable to satisfy the requirement of science of bridge building initial maintenance service life 20a or more；In addition, Tidal zone concrete works are not only
Construction profile size is big, shape is changeable, also in sea, all causes greatly to armor, protective jacket molding making and in-site installation
Difficulty, the airtight quality not only installed are difficult to ensure, also significantly increase protection operation safety and cost.
CN107630513 discloses a kind of ocean engineering concrete anti-corrosion method, comprising the following steps: (1) will gather different
Cyclobutenyl sealant layer and uv-protection layer are combined with each other；(2) cleaning treatment is carried out to concrete surface to be protected, clearly
Except the special-shaped object and floating ash on surface；(3) concrete surface after the cleaning applies non-solvent epoxy primary coat；(4) epoxy primary coat table
After face is dry, the composite layer of polyisobutenyl sealant layer and uv-protection layer is affixed directly to epoxy primary coat coating table
Face is had a common boundary between compound synusia and piece.This method uses the polyisobutene prepared using aluminium foil, PVC band, polyethylene sheets as backing
Based sealant band sticking construction, method is convenient, environmentally protective, but is handled using non-solvent epoxy primary coat, leads to Tidal zone coagulation
The native unstable situation of matrix surface still remains, and its is weather-proof, resistance to for aluminium foil, PVC band, rubber belt material that polyethylene sheets are backing
Long property is also obvious insufficient.
Summary of the invention
The present invention is directed to prior art problem, the corrosive environment faced according to Tidal zone concrete and construction performance analysis,
Intensive treatment is carried out to its matrix especially surface interface, while drawing experience and lessons of the existing technology, in impregnating with silane
On the basis of, using professional silane coupling agent reinforcing concrete surface strength, compactness and stability, using the modified sealing material of novel silane
Material is sealed to concrete interface and handling flexibly, and forms smooth uniform transition bonding interface, realizes coagulation as putting up a bridge
Native matrix surface and outer layer high-performance PVF adhesive tape are wrapped the close, reliable, durable bonding of layer, entire means of defence strict control
It is completed within an ebb tide period, to realize the reliably protecting to Tidal zone concrete surface 20a or more.
The concrete scheme that the present invention solves prior art problem is as follows: a kind of Tidal zone concrete component is wrapped the side of protection
Method, comprising the following steps:
The first step, matrix processing
The surface of concrete protection component matrix will be needed to float ash, laitance, folder using high pressure fresh water, sandblasting or manual grinding method
Slag, moss and porous spot are cleaned out, and concrete component matrix surface reaches surface cleaning, firm；Concrete component base
Body surface face includes pit, grooving, crack and the faulting of slab ends that processing leaves；To improve the quality that is wrapped, the processing of concrete component matrix
Range upper and lower part can exceed scope of design 200mm or more；
When the processing of concrete component matrix, along concrete component matrix surface from top to bottom from atmospheric region, splash zone, Tidal zone
Carry out, when from tidewater since high-water mark ebb tide carry out immediately Tidal zone concrete component matrix surface processing, dropped in tidewater
It is handled after minimum work surface or to the concrete component matrix surface in 30min before subtidal line more than the completion water surface；
Processed concrete component matrix surface moisture content is measured at any time, when moisture content is greater than 6%, is blown using air-heater baking mixed
Solidifying soil matrix surface, is reduced to 6% or less for moisture content；
Second step, impregnating with silane
After concrete component matrix moisture control is below 6%, immediately along from the downward 200mm in the lower part of process range or water
Plane upward direction brushes the impregnating with silane agent of the road 1-2 paste, dosage 200-300g/m2, the Tidal zone single track dip operation time answers
Control is within 5min；
Third step, primary coat processing
After concrete component matrix dipping and dry tack free are brushed in paste impregnating with silane agent, continues to stand 10-15min, then stand
I.e. along from water surface upward direction, 1 silane coupling agent, dosage 80-100g/m are brushed2, 5-10 μm of film thickness, single track brushes the activity duration
It is completed within 5min, then dries 5-10min；
4th step scratches silane modified polymer sealant
Silane coupling agent scratches silane modified polymer sealant, concrete component matrix table along from water surface upward direction immediately after drying
Pit, grooving, crack or the faulting of slab ends position that surface treatment leaves tightly are filled up with the silane modified polymer sealant, are repaired
Mend, strike off or modify transition；In addition to aforementioned sectional repair point, bondline thickness is generally 0.1 ~ 0.5mm, and blade coating Operation control exists
It is completed in 10min；
5th step, be wrapped PVF adhesive tape
Operation is scratched to complete to stand 10-20min, immediately along from the water surface or concrete component matrix process range lower part upwards
To carrying out PVF adhesive tape and be wrapped operation；PVF adhesive tape is wrapped concrete component matrix twice along horizontal position, then along concrete
Component matrix spiral is wrapped upwards, be wrapped to concrete component matrix process range top finish up when, be wrapped along horizontal position mixed
Solidifying soil component matrix twice, and transition is overlapped with concrete component matrix surface；The PVF adhesive tape lap position that is wrapped should be splashed beyond wave
Area top or astronomical spring tide highest water level area；The sundries that stormy waves can be utmostly reduced and its contained washes away overlapping regions
Or hit influence.It is wrapped quality to improve PVF adhesive tape, the silane modified polymer that adhesive tape lower edge can scratch width 200mm more is close
Adhesive layer.
The silane modified polymer sealant is free of any plasticizer, each raw material and its parts by weight are as follows: silane-modified
It is 40-60 parts of fluoropolymer resin, 30-50 parts of nanometer calcium carbonate, 0.2-2 parts of hydrophobicity aerosil, 2-5 parts of deicer, attached
It 1-2 parts of adhesion promoter, 0.5-1 parts of catalyst, is prepared using low temperature, chemical dewatering process；
The silane modified polymer resin is that silane modified polyether resin M S, silicane-modified polyurethane resin SPUR or silane change
Property resin STP；The deicer is vinyltrimethoxysilane；The adhesion promoter is epoxy radicals silicone hydride or amino silicone
Alkane；The catalyst is organotin or chelating tin；
The impregnating with silane agent is isobutyl triethoxy silane or isooctyltriethoxysilane；
The silane coupling agent is the dedicated primary coat product of existing assembled architecture joint seal.
In above-mentioned silane modified polymer sealant, the sealant of silane modified polymer resin preparation utilizes water in environment
Divide completion cross-linking vulcanized, the type sealant and water have certain compatibility, can be Nian Jie with moist matrix good；Above-mentioned silane
Polymer-modified sealant is prepared using existing low temperature, chemical dewatering process；
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: to improve colloid
Shielding properties, the silane modified polymer sealant, which also contains, accounts for silane modified polymer sealant total weight 5-10% antirust
Flaky material, and account for the acetylbutyrylcellulose of silane modified polymer sealant total weight 0.1-1%；
The antirust flaky material is zinc flake or flake aluminum.
Above-mentioned silane modified polymer sealant design is free of any plasticizer, solves what existing test was found in the process
Caused PVF adhesive tape and its pressure sensitive adhesive avulsion problem when conventional hermetic gel coating is in conjunction with PVF adhesive tape bonding face, while by mentioning
High resin accounting, cooperation nanometer calcium carbonate, which improve colloid mechanical property and guaranteeing and seal gel coating and PVF adhesive tape, to be wrapped combination
Reliably, durable；It is suitably added zinc flake, flake aluminum or other antirust flaky materials and acetylbutyrylcellulose is cooperated to help
Agent further increases the steam shielding properties of silane modified polymer sealant layer, improves and corrosive medium is prevented especially to prevent
Cl-The ability for corroding infiltration relies solely on the outstanding aobvious necessity of silane modified polymer sealant layer protection for underwater area；In addition it fits
Degree increases deicer dosage, and silane modified polymer sealant scratches the concrete substrate surface relatively higher to water content
When, itself has certain water separation capability, can eliminate concrete contact surface rapidly there may be moisture and is (especially underwater
When frictioning), guarantee that sealant is reliably be bonded with matrix.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: described
PVF tape thickness is 0.125-0.25mm, and PVF adhesive tape winds the 30-50% that overlapping widths are adhesive tape bandwidth.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: described
PVF tape thickness 0.125-0.25mm, PVF adhesive tape winds 50% or more that overlapping widths are adhesive tape bandwidth, is no more than 100%.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: described
PVF adhesive tape can also be wrapped operation along atmospheric region to water surface direction；Adhesive tape is wrapped concrete component along atmospheric region horizontal position
Then matrix twice are wrapped along concrete component matrix downward spiral, adjacent strips are superimposed according to 30%-50%；It is wrapped to coagulation
When native component matrix process range lower part is finished up, it is wrapped more than concrete component twice or twice along horizontal position；Under PVF adhesive tape
End position can at least reserve the silane modified polymer sealant layer of height 200mm or more.
PVF adhesive tape self-adhesion is excellent, and dupent's test shows the spiral of PVF adhesive tape to be wrapped, and to have no effect on it viscous for direction change
Sealing performance is connect, is existed at high tides from bottom to top and when ebb tide top-down special operation condition for Tidal zone water level, PVF adhesive tape
Adhering and sealing performance better than other bands has played important function.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: blade coating institute
Stating silane modified polymer sealant if necessary can operation under water, the specific steps are as follows:
It is inhaled using either manually or mechanically polishing process by concrete component matrix Tidal zone lower limit or to the surface of underwater 200mm range
Addendum, laitance, slag inclusion, moss, marine growth and porous spot are cleaned out, and guarantee concrete component matrix surface cleaning,
Firm, the processing of concrete component matrix surface includes pit, grooving, crack and the faulting of slab ends left；
The silane modified polymer sealant is scratched, glue rifle gluing mode or scraper plate the mode of blowing glue can be used, it will be silane-modified
Concrete surface is beaten or scrape rapidly to polymeric seal glue, by it slowly, at the uniform velocity, press, strike off in concrete component matrix table
Face, pit, grooving, crack and the faulting of slab ends that the processing of concrete component matrix leaves, with the silane modified polymer
Sealant is filled up and is slowly pressed, strikes off；Bondline thickness control is 0.5 ~ 3mm.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: underwater to make
When industry scratches the silane modified polymer sealant, the plane and concrete component matrix surface or concrete structure of scraper plate are pressed
The angle of part matrix cambered surface tangent line is less than 30 °.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: underwater to make
When industry scratches the silane modified polymer sealant, the plane and concrete component matrix surface or concrete structure of scraper plate are pressed
The angle of part matrix cambered surface tangent line is less than 15 °.
Scraper plate angle, which is turned down, is conducive to seal micelle colloid in water as the tools such as scraper plate press movement, and driving one by one will
The seawater in bonding interface region, also can guarantee contact surface sealant stablize expansion and it is quickly Nian Jie with concrete substrate, avoid glue
Body is mingled with seawater or Bao Shui, bubbling and other issues, although underwater concrete is moist surface, above-mentioned silicon occurs in contact surface
The polymer-modified sealant of alkane have it is certain to interface surface from water-scavenging capability, be still able to achieve preferable bonding.Above-mentioned design
Extend, the elastic packing and cementability formed after a week using the good wet structure cementability of sealant, blade coating prevents sea
Water and its Cl-The ability of, infiltration retrograde upwards along concrete surface and sealant bonding plane gap and corrosion failure, reduces or disappears
Except seawater destroys the reverse etch of Tidal zone protective layer.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: important work
Journey or engineering significant points can be wrapped PVF adhesive tape in the 5th step, terminate being wrapped when needing to improve protection level
Afterwards, be denoted as and be once wrapped, can also carry out as needed it is secondary be wrapped, the secondary PVF tape surface that when being wrapped, should will be wrapped
Clean, guarantee drying, is wrapped using spiral, and the center of the secondary PVF adhesive tape being wrapped should be aligned when being once wrapped and stay
Under PVF adhesive tape seaming position, secondary adjacent strips when being wrapped are superimposed according to 10%-30%；The above-mentioned secondary operation that is wrapped is necessary
It is completed before tidewater rises up.
Above-mentioned PVF adhesive tape backing is polyvinyl fluoride thin film material, is extruded from, is had by the copolymer of fluorine and fluorocarbon molecule
Crystal structure, high electrical insulation performance, high toughness, good chemical product, anti-aging, resistant performance easy to clean and corrosion resistance
Can, the resistance and durability of PVF film counterglow, moisture and oxidation are significantly better than existing PVC, PDPF material, farther
It is wrapped band and conventional waterproof roll better than existing chlorosulfonation polyvinyl chloride, the reliable engineer application for having 30a or more is real
Example.In addition, PVF tape surface is hydrophobic, resistant and high toughness, it can inhibit sea organism attachment growth, resist seawater scouring, also
It can work long hours -40 ~ 90 DEG C of temperature ranges are reliable and stable, the above-mentioned excellent comprehensive performance of PVF rubber belt material and sealant,
Primary coat organically combines, and is formed to the effective interface enhancing of Tidal zone concrete, reliable sealing, durable protection.
It is wrapped a kind of prioritization scheme of means of defence as a kind of Tidal zone concrete component of the present invention: the silicon
The polymer-modified sealant of alkane the preparation method is as follows:
It weighs, first silane modified polymer resin is added clear according to each raw material proportioning of the silane modified polymer sealant
In the double planetary mixer of clean drying, hydrophobicity aerosil, nanometer calcium carbonate, acetate butyrate fiber are then sequentially added
The deicer of element, 30%-50% parts by weight, vacuumizes and is dispersed with stirring 10-30min at revolving speed 50-100rpm；It is progressively heated at
50-70 DEG C, the high-speed stirred 30-90min at revolving speed 1000-1500rpm, until being cooled to after sealant colloid exquisiteness is uniform
40 DEG C or less；Antirust flaky material is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm stirs 30-60min, addition is remaining
Deicer, continue stir 10-20min；Adhesion promoter is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm is stirred
10-20min；It is eventually adding catalyst, continues in vacuum, after 40 DEG C following, revolving speed 200-300rpm stirs 10-20min, out
Material, sealed package to get arrive silane modified polymer sealant.
When chemistry water removal for the first time, the material of 80% or more silane modified polymer sealant has all been added, and puts into deicer
Total amount 30-50% can guarantee water removal effect；Secondary water removal investment accounts for the remaining deicer of deicer total amount 50-70%, sealant
There are also effects remaining, that interface water removal can be played in concrete surface knifing process, guarantees bonding on wet face effect in system.
The beneficial effect that the present invention obtains
The present invention is for Tidal zone the concrete corrosive environment faced and operating condition of constructing, on the basis of impregnating with silane, using coagulation
The dedicated silane coupling agent reinforcing concrete component matrix surface intensity of Soil Interface, compactness and stability, design is using not plasticizer-containing
High-performance novel silane-modified sealing material concrete interface is sealed and handling flexibly, form smooth stable homogeneous
Transition bonding interface, as put up a bridge realize concrete component matrix surface and outer layer high-performance PVF adhesive tape be wrapped layer it is close, can
It leans on, durable bonding, entire means of defence combination Tidal zone special operation condition designs each flow chart time and node quality controls, and protects
Card is completed within an ebb tide period, is avoided tidewater of the existing technology and is polluted repeatedly to working face, it is ensured that sealing is wrapped
Effect quality is, it can be achieved that reliably protecting to Tidal zone concrete component matrix surface 20a or more.
The method of the present invention further designs to water surface direction and extends on Tidal zone corrosion protection region base, or even arrives
The water surface prevents sea hereinafter, using the elastic packing and cementability formed after the good wet structure cementability of sealant, blade coating
Water and its Cl-The ability of, infiltration retrograde upwards along concrete component matrix surface and sealant bonding plane gap and corrosion failure,
It reduces or eliminates seawater to destroy the reverse etch of Tidal zone protective layer, further improves the present invention and be wrapped seal erosion protection
Validity, reliability and the durability of system.
The present invention solves PVF adhesive tape and sealant and is wrapped bonding integrity problem, realizes PVF adhesive tape in ocean tidal range
Area seals the successful application that is wrapped on guard technology, and entire protection system is made to have high electrical insulation performance, high toughness, excellent
Chemicals-resistant, the performances such as anti-aging, resistant is easy to clean, while PVF bis- times can also be completed before a flood tide and be wrapped, it is secondary to twine
Packet, which increases, to be wrapped tape thickness while also carrying out effective seal to the band seam that is wrapped left when being once wrapped, can further improve tide
Poor area is wrapped the durability of protection system, and the design service life that integrated protection performance reaches its ocean engineering 50a or more is wanted
It asks.
The method of the present invention brevity and lucidity, scene do not have oil paint coating, and operation clean and effective is wrapped guard technology phase with tradition
More convenient than engineering method, task difficulty, intensity decline to a great extent, and construction cost is then obviously saved, and have a good promotion prospects.
Detailed description of the invention
Fig. 1 be Tidal zone concrete component of the present invention be wrapped means of defence formed safeguard structure schematic diagram；
In figure: 1- concrete component matrix, 2- impregnating with silane layer, 3- primary coat coating, 4- silane modified polymer sealant layer, 5-
PVF adhesive tape is wrapped layer.
Specific embodiment
Below with reference to examples and drawings the scheme and effect that the present invention is furture elucidated:
Embodiment 1-4
It is prepared by the processing of silane modified polymer sealant.
The raw material of embodiment 1-4 silane modified polymer sealant form and its parts by weight are shown in Table 1.
Each material is weighed according to silane modified polymer sealant embodiment 1-2 material mixture ratio in table 1, it first will be silane-modified
Fluoropolymer resin is put into the double planetary mixer of cleaned drying, sequentially adds hydrophobicity aerosil, nano-calcium carbonate
Calcium, the deicer of 30-50% parts by weight vacuumize and are dispersed with stirring 10-30min at revolving speed 50-100rpm；Then gradually add
Heat arrives 50-70 DEG C, the high-speed stirred 30-90min at revolving speed 1000-1500rpm, until being dropped after sealant colloid exquisiteness is uniform
Temperature is to 40 DEG C or less；Remaining deicer is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm continues to stir 10-
20min adds adhesion promoter, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm stirs 10-20min；It is eventually adding
Organotin catalysts, continue in vacuum, 40 DEG C following, after revolving speed 200-300rpm stirring 10-20min, discharge, sealed package,
Obtain silane modified polymer sealant.
Each material is weighed according to silane modified polymer sealant embodiment 3-4 material mixture ratio in table 1, it first will be silane-modified
Fluoropolymer resin is put into the double planetary mixer of cleaned drying, sequentially adds hydrophobicity aerosil, nano-calcium carbonate
Calcium, acetylbutyrylcellulose, 50-70% parts by weight deicer, vacuumize and be dispersed with stirring 10- at revolving speed 50-100rpm
30min；Then it is progressively heated at 50-70 DEG C, the high-speed stirred 30-90min at revolving speed 1000-1500rpm, until sealant colloid
40 DEG C or less are cooled to after exquisiteness is uniform；Then flake aluminum is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm
30-60min is stirred, remaining deicer is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm continues to stir 10-
20min adds adhesion promoter, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm stirs 10-20min；It is eventually adding
Organotin catalysts, continue in vacuum, 40 DEG C following, after revolving speed 200-300rpm stirring 10-20min, discharge, sealed package,
Obtain silane modified polymer sealant.
Each material composition of 1 embodiment 1-4 of table and its parts by weight unit: parts by weight
From 1 test data of table as it can be seen that embodiment 1-4 realizes that expected design effect of the present invention, comprehensive performance meet existing industry
Demand of technical standard, it is mating well and with long-lasting tolerance with PVF adhesive tape, it is incompatible with PVF hidden to solve existing sealant
Suffer from.
Embodiment 5
A kind of Tidal zone concrete component is wrapped means of defence, and the safeguard structure that is wrapped is as shown in Figure 1, wherein concrete component
Matrix 1,1 external coating of concrete component matrix have impregnating with silane layer 2, and impregnating with silane layer 2 penetrates into concrete component matrix 1
Portion, 2 external coating of impregnating with silane layer have primary coat coating 3, and 3 surface of primary coat coating is coated with silane modified polymer sealant layer 4, silicon
Polymer-modified 4 surface of sealant layer of the alkane PVF adhesive tape that is wrapped is wrapped layer 5.
Tidal zone concrete component of the present invention is wrapped means of defence, comprising the following steps:
The first step, matrix processing
The surface of concrete protection component matrix will be needed to float ash, laitance, folder using high pressure fresh water, sandblasting or manual grinding method
Slag, moss and porous spot are cleaned out, and concrete component matrix surface reaches surface cleaning, firm；Concrete component base
Body surface face includes pit, grooving, crack and the faulting of slab ends that processing leaves；Concrete component matrix process range upper and lower part is equal
Scope of design 200mm or more should be exceeded；
When the processing of concrete component matrix, along concrete component matrix surface from top to bottom from atmospheric region, splash zone, Tidal zone
Carry out, when from tidewater since high-water mark ebb tide carry out immediately Tidal zone concrete component matrix surface processing, dropped in tidewater
It is handled after minimum work surface or to the concrete component matrix surface in 30min before subtidal line more than the completion water surface；
Processed concrete component matrix surface moisture content is measured at any time, when moisture content is greater than 6%, is blown using air-heater baking mixed
Solidifying soil matrix surface, is reduced to 6% or less for moisture content；
Second step, impregnating with silane
After concrete component matrix moisture control is below 6%, immediately along from the downward 200mm in the lower part of process range or water
Plane upward direction brushes the impregnating with silane agent of the road 1-2 paste, dosage 200-300g/m2, the Tidal zone single track dip operation time answers
Control ultimately forms impregnating with silane layer within 5min；
Third step, primary coat processing
Paste impregnating with silane agent brushes concrete component matrix and impregnates to form impregnating with silane layer, and impregnating with silane layer surface is dry
Afterwards, continue to stand 10-15min, immediately after along from water surface upward direction, brush 1 silane coupling agent, dosage 80-100g/m2, film
5-10 μm thick, single track is brushed to be completed within activity duration 5min, then dries 5-10min；Form primary coat coating；
4th step scratches silane modified polymer sealant
Silane coupling agent scratches silane modified polymer sealant, concrete component matrix table along from water surface upward direction immediately after drying
Pit, grooving, crack or the faulting of slab ends position that surface treatment leaves tightly are filled up with the silane modified polymer sealant, are repaired
Mend, strike off or modify transition；In addition to aforementioned sectional repair point, bondline thickness is generally 0.1 ~ 0.5mm, and blade coating Operation control exists
It is completed in 10min, ultimately forms silane modified polymer sealant layer；
5th step, be wrapped PVF adhesive tape
Operation is scratched to complete to stand 10-20min, immediately along from the water surface or concrete component matrix process range lower part upwards
To carrying out PVF adhesive tape and be wrapped operation；PVF adhesive tape lower part at least reserves height 200mm silane modified polymer sealant layer, will
PVF adhesive tape is wrapped concrete component matrix twice along horizontal position, is then wrapped, is wrapped upwards along concrete component matrix spiral
When finishing up to concrete component matrix process range top, it is wrapped concrete component matrix twice, and and coagulation along horizontal position
Native component matrix surface overlaps transition；PVF adhesive tape is wrapped lap position should be beyond splash zone top or astronomical spring tide highest water level
Area forms PVF adhesive tape and is wrapped layer.
Embodiment 6
On the basis of embodiment 5, scratch the silane modified polymer sealant if necessary can operation under water, specifically
Steps are as follows:
It is floated using either manually or mechanically polishing process by concrete component matrix Tidal zone lower limit or to the surface of underwater 300mm range
Ash, laitance, slag inclusion, moss, marine growth and porous spot are cleaned out, and guarantee the cleaning of concrete component matrix surface, heavily fortified point
Gu the processing of concrete component matrix surface includes pit, grooving, crack and the faulting of slab ends left；
The silane modified polymer sealant is scratched, glue rifle gluing mode or scraper plate the mode of blowing glue can be used, it will be silane-modified
Concrete surface is beaten or scrape rapidly to polymeric seal glue, by it slowly, at the uniform velocity, press, strike off in concrete component matrix table
Face, pit, grooving, crack and the faulting of slab ends that the processing of concrete component matrix leaves, with the silane modified polymer
Sealant is filled up and is slowly pressed, strikes off；Bondline thickness control is 0.5 ~ 3mm.
When underwater operation scratches the silane modified polymer sealant, the plane and concrete component matrix of scraper plate are pressed
The angle of surface or concrete component matrix cambered surface tangent line is less than 30 °, and preferably angle is less than 15 °.
5th step PVF adhesive tape that is wrapped is denoted as and is once wrapped after being wrapped, and can also carry out two as needed
It is secondary to be wrapped, it is secondary when being wrapped, should the PVF tape surface that be wrapped is clean, guarantee drying, be wrapped using spiral, it is secondary
The center for the PVF adhesive tape being wrapped should be directed at the seaming position of the PVF adhesive tape once left when being wrapped, secondary adjacent when being wrapped
Adhesive tape is according to 30% superposition；The above-mentioned secondary operation that is wrapped must be completed before tidewater rises up.
Claims (9)
- The means of defence 1. a kind of Tidal zone concrete component is wrapped, it is characterised in that: the following steps are included:The first step, matrix processingThe surface of concrete protection component matrix will be needed to float ash, laitance, folder using high pressure fresh water, sandblasting or manual grinding method Slag, moss and porous spot are cleaned out, and concrete component matrix surface reaches surface cleaning, firm；Concrete component base Body surface face includes pit, grooving, crack and the faulting of slab ends that processing leaves；Concrete component matrix process range upper and lower part is equal Scope of design 200mm or more can be exceeded；When the processing of concrete component matrix, along concrete component matrix surface from top to bottom from atmospheric region, splash zone, Tidal zone Carry out, when from tidewater since high-water mark ebb tide carry out immediately Tidal zone concrete component matrix surface processing, dropped in tidewater It is handled after minimum work surface or to the concrete component matrix surface in 30min before subtidal line more than the completion water surface；Processed concrete component matrix surface moisture content is measured at any time, when moisture content is greater than 6%, is blown using air-heater baking mixed Solidifying soil matrix surface, is reduced to 6% or less for moisture content；Second step, impregnating with silaneAfter concrete component matrix moisture control is below 6%, immediately along from the downward 200mm in the lower part of process range or water Plane upward direction brushes the impregnating with silane agent of the road 1-2 paste, dosage 200-300g/m2, the Tidal zone single track dip operation time answers Control ultimately forms impregnating with silane layer within 5min；Third step, primary coat processingPaste impregnating with silane agent brushes concrete component matrix and impregnates to form impregnating with silane layer, and impregnating with silane layer surface is dry Afterwards, continue to stand 10-15min, immediately after along from water surface upward direction, brush 1 silane coupling agent, dosage 80-100g/m2, film 5-10 μm thick, single track is brushed to be completed within activity duration 5min, then dries 5-10min；Form primary coat coating；4th step scratches silane modified polymer sealantSilane coupling agent scratches silane modified polymer sealant, concrete component matrix table along from water surface upward direction immediately after drying Pit, grooving, crack or the faulting of slab ends position that surface treatment leaves tightly are filled up with the silane modified polymer sealant, are repaired Mend, strike off or modify transition；In addition to aforementioned sectional repair point, bondline thickness is generally 0.1 ~ 0.5mm, and blade coating Operation control exists It is completed in 10min, ultimately forms silane modified polymer sealant layer；5th step, be wrapped PVF adhesive tapeOperation is scratched to complete to stand 10-20min, immediately along from the water surface or concrete component matrix process range lower part upwards To carrying out PVF adhesive tape and be wrapped operation；PVF adhesive tape lower part at least reserves height 200mm silane modified polymer sealant layer, will PVF adhesive tape is wrapped concrete component matrix twice along horizontal position, is then wrapped, is wrapped upwards along concrete component matrix spiral When finishing up to concrete component matrix process range top, it is wrapped concrete component matrix twice, and and coagulation along horizontal position Native component matrix surface overlaps transition；PVF adhesive tape is wrapped lap position should be beyond splash zone top or astronomical spring tide highest water level Area forms PVF adhesive tape and is wrapped layer；The silane modified polymer sealant is free of any plasticizer, each raw material and its parts by weight are as follows: silane-modified polymerization 40-60 parts of resin, 30-50 parts of nanometer calcium carbonate, 0.2-2 parts of hydrophobicity aerosil, 2-5 parts of deicer, adhesive force It 1-2 parts of promotor, 0.5-1 parts of catalyst, is prepared using low temperature, chemical dewatering process；The silane modified polymer resin is that silane modified polyether resin M S, silicane-modified polyurethane resin SPUR or silane change Property resin STP；The deicer is vinyltrimethoxysilane；The adhesion promoter is epoxy radicals silicone hydride or amino silicone Alkane；The catalyst is organotin or chelating tin；The impregnating with silane agent is isobutyl triethoxy silane or isooctyltriethoxysilane；The silane coupling agent is existing assembled architecture joint seal primary coat product.
- The means of defence 2. a kind of Tidal zone concrete component according to claim 1 is wrapped, it is characterised in that: the silane Polymer-modified sealant, which also contains, accounts for silane modified polymer sealant total weight 5-10% antirust flaky material, and accounts for silicon The acetylbutyrylcellulose of the polymer-modified sealant total weight 0.1-1% of alkane；The antirust flaky material is zinc flake or flake aluminum.
- The means of defence 3. a kind of Tidal zone concrete component according to claim 1 is wrapped, it is characterised in that: the PVF Tape thickness is 0.125-0.25mm, and PVF adhesive tape winds the 30-50% that overlapping widths are adhesive tape bandwidth.
- The means of defence 4. a kind of Tidal zone concrete component according to claim 1 is wrapped, it is characterised in that: the PVF Adhesive tape can also be wrapped operation along atmospheric region to water surface direction；Adhesive tape is wrapped concrete component matrix along atmospheric region horizontal position Then at least twice are wrapped along concrete component matrix downward spiral, adjacent strips are superimposed according to 30%-50%；It is wrapped to coagulation When native component matrix process range lower part is finished up, it is wrapped more than concrete component twice or twice along horizontal position；Under PVF adhesive tape End position can reserve the silane modified polymer sealant layer of height 200mm or more.
- The means of defence 5. a kind of Tidal zone concrete component according to claim 1 is wrapped, it is characterised in that: described in blade coating Silane modified polymer sealant if necessary can operation under water, the specific steps are as follows:It is inhaled using either manually or mechanically polishing process by concrete component matrix Tidal zone lower limit or to the surface of underwater 200mm range Attached ash object, laitance, slag inclusion, moss, marine growth and porous spot are cleaned out, and guarantee that concrete component matrix surface is clear Clean, firm, the processing of concrete component matrix surface includes pit, grooving, crack and the faulting of slab ends left；The silane modified polymer sealant is scratched, glue rifle gluing mode or scraper plate the mode of blowing glue can be used, it will be silane-modified Concrete surface is beaten or scrape rapidly to polymeric seal glue, by it slowly, at the uniform velocity, press, strike off in concrete component matrix table Face, pit, grooving, crack and the faulting of slab ends that the processing of concrete component matrix leaves, with the silane modified polymer Sealant is filled up and is slowly pressed, strikes off；Bondline thickness control is 0.5 ~ 3mm.
- The means of defence 6. a kind of Tidal zone concrete component according to claim 5 is wrapped, it is characterised in that: underwater operation When scratching the silane modified polymer sealant, the plane and concrete component matrix surface or concrete component of scraper plate are pressed The angle of matrix cambered surface tangent line is less than 30 °.
- The means of defence 7. a kind of Tidal zone concrete component according to claim 5 is wrapped, it is characterised in that: underwater operation When scratching the silane modified polymer sealant, the plane and concrete component matrix surface or concrete component of scraper plate are pressed The angle of matrix cambered surface tangent line is less than 15 °.
- The means of defence 8. a kind of Tidal zone concrete component according to claim 1 is wrapped, it is characterised in that: the described 5th The step PVF adhesive tape that is wrapped is denoted as and is once wrapped after being wrapped, can also carry out as needed it is secondary be wrapped, it is secondary to be wrapped When, should the PVF tape surface that be wrapped is clean, guarantee drying, be wrapped using spiral, the secondary PVF adhesive tape being wrapped Center should be directed at the seaming position of the PVF adhesive tape once left when being wrapped, and secondary adjacent strips when being wrapped are according to 10%-30% Superposition；The above-mentioned secondary operation that is wrapped must be completed before tidewater rises up.
- The means of defence 9. a kind of Tidal zone concrete component according to claim 1 or 2 is wrapped, it is characterised in that: described Silane modified polymer sealant the preparation method is as follows:It weighs, first silane modified polymer resin is added clear according to each raw material proportioning of the silane modified polymer sealant In the double planetary mixer of clean drying, hydrophobicity aerosil, nanometer calcium carbonate, acetate butyrate fiber are then sequentially added The deicer of element, 30%-50% parts by weight, vacuumizes and is dispersed with stirring 10-30min at revolving speed 50-100rpm；It is progressively heated at 50-70 DEG C, the high-speed stirred 30-90min at revolving speed 1000-1500rpm, until being cooled to after sealant colloid exquisiteness is uniform 40 DEG C or less；Antirust flaky material is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm stirs 30-60min, addition is remaining Deicer, continue stir 10-20min；Adhesion promoter is added, in vacuum, 40 DEG C hereinafter, revolving speed 200-300rpm is stirred 10-20min；It is eventually adding catalyst, continues in vacuum, after 40 DEG C following, revolving speed 200-300rpm stirs 10-20min, out Material, sealed package to get arrive silane modified polymer sealant.
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| CN111074871A (en) * | 2019-12-31 | 2020-04-28 | 中国船舶重工集团公司七五0试验场 | Equipment and method for long-acting environment-friendly inhibition of marine organism adhesion of underwater structure |
| CN113185881A (en) * | 2021-05-10 | 2021-07-30 | 北京固斯特国际化工有限公司 | Permeable reactive anticorrosive material for concrete chimney and application thereof |
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| CN102383619A (en) * | 2011-10-16 | 2012-03-21 | 江苏中矿大正表面工程技术有限公司 | Method for preventing corrosion of concrete members in tidal range zone and splash zone of ocean |
| CN104120743A (en) * | 2014-05-21 | 2014-10-29 | 徐州中矿安丰工程科技有限公司 | Concrete pile protection method used in marine environment |
| CN204098030U (en) * | 2014-05-21 | 2015-01-14 | 徐州工程学院 | For the concrete pile structure of marine environment |
| CN105040663A (en) * | 2015-07-02 | 2015-11-11 | 济南轨道交通集团有限公司 | Method for guaranteeing durability of concrete members in marine wave splashing area and water level changing area |
| CN206385036U (en) * | 2016-12-30 | 2017-08-08 | 江苏中矿大正表面工程技术有限公司 | Concrete protection flexible coating structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111074871A (en) * | 2019-12-31 | 2020-04-28 | 中国船舶重工集团公司七五0试验场 | Equipment and method for long-acting environment-friendly inhibition of marine organism adhesion of underwater structure |
| CN113185881A (en) * | 2021-05-10 | 2021-07-30 | 北京固斯特国际化工有限公司 | Permeable reactive anticorrosive material for concrete chimney and application thereof |
| CN113185881B (en) * | 2021-05-10 | 2022-02-01 | 北京固斯特国际化工有限公司 | Permeable reactive anticorrosive material for concrete chimney and application thereof |
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Denomination of invention: A wrapping protection method for concrete components in tidal range areas Effective date of registration: 20231122 Granted publication date: 20200911 Pledgee: Industrial Bank Co.,Ltd. Shanghai Hongkou sub branch Pledgor: SHANGHAI QIHAI ANTI-CORROSION ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023310000760 |