CN109265197A - Concrete reparation and protection isolated form coating and method - Google Patents
Concrete reparation and protection isolated form coating and method Download PDFInfo
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- CN109265197A CN109265197A CN201811005551.1A CN201811005551A CN109265197A CN 109265197 A CN109265197 A CN 109265197A CN 201811005551 A CN201811005551 A CN 201811005551A CN 109265197 A CN109265197 A CN 109265197A
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention proposes a kind of concrete reparations and protection isolated form coating and method, using epoxy putty, have good cementation with concrete substrate, can combine together with concrete substrate, corrosive media can thoroughly be isolated, guarantee that coating is not blistering and do not fall off；Sealing effect is excellent, and antiseptic property is good, and wet environment can construct with dry environment；Finishing coat aqueous double-component fluorocarbon coating is protected for bridge incrustation and durability, and the coating of formation has especially advantageous adhesive force, weatherability, resistance to acid and alkali and self-cleaning effect, to make concrete structure for a long time from maintenance；The present invention can repair concrete surface, it again being capable of permanent, erosion that sustainability isolation corrosion factor is to concrete, efficiently solve new-old concrete reparation and protection question, safety, durability and the dicoration of concrete structure are improved, coating system is simple, easy for construction, environmentally protective.
Description
Technical field
The present invention relates to the field of building materials more particularly to a kind of concrete reparations and protection isolated form coating and side
Method.
Background technique
Concrete structure plays important central role in modern architecture.Due to rapid development of economy, various types
Concrete construction development it is very fast.With the continuous improvement that the public requires urban landscape, the peace of concrete construction
Complete and beauty becomes more and more important.But it in the direct exposure air of concrete structure, is carbonized and is vulcanized, fluoride
The influence of the factors such as infiltration, saline crystallization, unfreezing, external force, rainwater erosion or cold and hot variation, greatly reduces coagulation
The safety of soil structure and service life.Traditional coating protection method be using aqueous putty leveling concrete surface, then
Coating paint is protected on screed-coat, but since aqueous putty is low with Concrete Bond Strength, the weatherability of paint is poor, uses
Usually there are the harm such as putty falls off, painting layer is easy to foaming, cracks, falls off, changing colour in the influence of many factors such as environment,
To influence the overall image of concrete construction.
Summary of the invention
In view of this, the invention proposes a kind of adhesive force strong, the concrete reparation of good weatherability and protection isolated form
Coating and method.
The technical scheme of the present invention is realized as follows:
On the one hand, the present invention provides a kind of concrete reparations and protection isolated form coating comprising concrete base layer
(1), concrete base layer (1) surface is levelling and surface is provided with epoxy putty layer (2), further includes being coated on epoxy putty layer (2)
The aqueous double-component fluorocarbon layer (3) on surface.
On the basis of above technical scheme, it is preferred that epoxy putty layer (2) is with a thickness of 0.5~2mm.
On the basis of above technical scheme, it is preferred that aqueous double-component fluorocarbon layer (3) is with a thickness of 0.05~0.1mm.
On the basis of above technical scheme, it is preferred that the epoxy putty layer (2) is high using adhesive force, adhesion strength
Big no-solvent type epoxy putty.Specifically, epoxy putty of the present invention is no-solvent type, highly filled double groups
Part product comprising component A and B component, wherein component A is host agent, and B component is curing agent.Component A is by bisphenol type epoxy
Resin, titanium dioxide, silicon powder, ceramic powder, nitrile rubber and phenyl glycidyl ether reactive diluent refine；B component is
It is refined by fatty amine, silicon powder and fumed silica.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty component A formula: double
Phenol A type epoxy resin 27-50%；Titanium dioxide 0-10%；Silicon powder 10-30%；Ceramic powder 10-20%；Nitrile rubber 2-8%；
Phenyl glycidyl ether reactive diluent 0-5%.Specifically, the ceramic powder uses the powder of 400 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty B component formula: rouge
Fat amine 32-45%；Silicon powder 40-60%；Fumed silica 2-8%.
On the basis of above technical scheme, it is preferred that the aqueous double-component fluorocarbon layer (3) uses good weatherability, firmly
Spend high aqueous double-component fluorocarbon coating.Specifically, aqueous double-component fluorocarbon coating of the present invention comprising component C
With D component, wherein C component is host agent, and D component is curing agent.C component is by fluoroolefins/vinyl ethers copolymer resins, titanium white
Powder, barium sulfate, ultrafine ceramic powder and polyether siloxane copolymer wetting dispersing agent, mineral oil wax dispenser defoaming agent, poly- silicon oxygen
Alkane levelling agent and polyether-polyurethane thickener refine；D component is by polyisocyanate curing agent and butyl glycol ether acetic acid
Ester is formulated.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in C component formula: fluoroolefins/ethylene
Base ether copolymer resins 45-65%；Titanium dioxide 15-25%；Barium sulfate 5-15%；Ultrafine ceramic powder 5-20%；Polyether silicone is total
Polymers wetting dispersing agent 0.5-2%；Mineral oil wax dispenser defoaming agent 0.1-0.5%；Polysiloxane leveling agents 0.5-3%；It is poly-
Ether polyurethane thickener 1-4%.Specifically, the ultrafine ceramic powder uses the powder of 1500 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in D component formula: polyisocyanate
Curing agent 50-80%；2-Butoxyethyl acetate 20-50%.
On the basis of above technical scheme, it is preferred that the bonding of epoxy putty layer (2) and concrete base layer (1) surface
Intensity is greater than or equal to 1.5MPa.
Second aspect, the present invention provides a kind of concrete reparation and means of defences, include the following steps,
S1, concrete surface processing: by all loose surfaces of concrete base layer (1), floating ash and electrochromic surface should be beaten
It grinds off；
S2, coating epoxy putty；Concrete surface obvious shortcoming epoxy putty is levelling, then criticize and scrape or to spray epoxy greasy
Son；
S3 polishes epoxy putty layer (2): to epoxy putty layer (2) the surface electric grinding machine or sand paper being fully cured
It polishes flat；
S4 coats aqueous double-component fluorocarbon coating；After epoxy putty layer (2) dry tack free that step S3 is obtained, coating
Aqueous double-component fluorocarbon coating twice.
On the basis of above technical scheme, it is preferred that further include step S5, to coating aqueous double-component fluorocarbon coating
Surface carries out natural curing.
Concrete reparation and protection isolated form coating of the invention and method have following compared with the existing technology
The utility model has the advantages that
(1) using epoxy putty to concrete structural surface reparation and protection, the putty and concrete substrate are with fine
Cementation, can be used as structure sheaf when concrete structure is reinforced again and exist without cutting, bulk strength and viscous
Knotting strength is high, can combine together with concrete substrate, and corrosive media can thoroughly be isolated, and guarantees that coating is not blistering and does not fall off；
Sealing effect is excellent, and antiseptic property is good, and wet environment can construct with dry environment；
(2) finishing coat aqueous double-component fluorocarbon coating is protected for bridge incrustation and durability, the coating tool of formation
There are especially advantageous adhesive force, weatherability, resistance to acid and alkali and self-cleaning effect, guarantees that in film 20 years be not in xanthochromia, black
Become, be loose, serious pollution the problems such as, to make concrete structure for a long time from maintenance；
(3) present invention can repair concrete surface and permanent, sustainability isolation corrosion factor to concrete
It corrodes, efficiently solves new-old concrete reparation and protection question, improve safety, durability and the decoration of concrete structure
Property, coating system is simple, easy for construction, environmentally protective.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of the section structure that isolated form coating is used in concrete reparation and protection of the invention；
Fig. 2 is the flow chart of concrete reparation of the invention and means of defence.
Specific embodiment
Below in conjunction with embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only some embodiments of the invention, rather than whole embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
Embodiment 1
The epoxy putty of the present embodiment is high using adhesive force, the big no-solvent type epoxy putty of adhesion strength comprising A group
Point and B component, wherein component A is host agent, and B component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in component A formula: bisphenol type epoxy
Resin 50%；Titanium dioxide 10%；Silicon powder 15%；Ceramic powder 12%；Nitrile rubber 8%；The dilution of phenyl glycidyl ether activity
Agent 5%.The ceramic powder uses the powder of 400 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in B component formula: fatty amine 45%；
Silicon powder 47%；Fumed silica 8%.
The aqueous double-component fluorocarbon layer of the present embodiment use good weatherability, aqueous double-component fluorocarbon coating with high hardness,
Including component C and D component, wherein C component is host agent, and D component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in C component formula: fluoroolefins/ethylene
Base ether copolymer resins 50%；Titanium dioxide 20%；Barium sulfate 10.5%；Ultrafine ceramic powder 10%；Polyether siloxane copolymer wetting
Dispersing agent 2%；Mineral oil wax dispenser defoaming agent 0.5%；Polysiloxane leveling agents 3%；Polyether-polyurethane thickener 4%.Institute
State the powder that ultrafine ceramic powder uses 1500 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in D component formula: polyisocyanate
Curing agent 80%；2-Butoxyethyl acetate 20%.
Certain domestic concrete-bridge, using 15 years, after the erosion corrosion of experience wind and rain, appearance was outmoded, concrete structure
The step of surface corrosion is serious, influences traffic trip safety and city image, is repaired and protected to it is as follows:
S1, by all loose surfaces of concrete-bridge, floating ash and electrochromic surface should polish off；
S2, the obvious shortcomings epoxy putty such as the crack on concrete-bridge surface and honeycomb, hole is levelling, then criticize scrape or
Spray epoxy putty；
S3 polishes flat to the epoxy putty layer surface being fully cured with electric grinding machine or sand paper, epoxy putty thickness
Degree is 1mm；
S4 coats aqueous double-component fluorocarbon coating twice after epoxy putty layer surface is dry, and aqueous double-component fluorine carbon applies
Material is with a thickness of 0.08mm；
S5 carries out natural curing to the surface of coating aqueous double-component fluorocarbon coating；
S6 carries out adhesion test to coating surface, and after alkali resistance test 30d, appearance of coat is not blistering, is not cracked, does not take off
It falls；The adhesion strength of coating and concrete surface is 1.9MPa, and resistance to salt water 2000h is without exception, stain resistance 6.4%, washable
Brush 30000 times unchanged, and artificial ageing resistance 1700h is not blistering, does not crack, does not fall off.
Embodiment 2
The epoxy putty of the present embodiment is high using adhesive force, the big no-solvent type epoxy putty of adhesion strength comprising A group
Point and B component, wherein component A is host agent, and B component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty component A formula: double
Phenol A type epoxy resin 35%；Titanium dioxide 5%；Silicon powder 30%；Ceramic powder 20%；Nitrile rubber 7%；Phenyl glycidyl ether
Reactive diluent 3%.Specifically, the ceramic powder uses the powder of 400 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty B component formula: rouge
Fat amine 35%；Silicon powder 60%；Fumed silica 5%.
The aqueous double-component fluorocarbon layer of the present embodiment use good weatherability, aqueous double-component fluorocarbon coating with high hardness,
Including component C and D component, wherein C component is host agent, and D component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in C component formula: fluoroolefins/ethylene
Base ether copolymer resins 45%；Titanium dioxide 10%；Barium sulfate 10%；Ultrafine ceramic powder 18.5%；Polyether siloxane copolymer wetting
Dispersing agent 1.2%；Mineral oil wax dispenser defoaming agent 0.3%；Polysiloxane leveling agents 2%；Polyether-polyurethane thickener 3%.
The ultrafine ceramic powder uses the powder of 1500 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in D component formula: polyisocyanate
Curing agent 65%；2-Butoxyethyl acetate 35%.
Certain domestic concrete-bridge, using 15 years, after the erosion corrosion of experience wind and rain, appearance was outmoded, concrete structure
The step of surface corrosion is serious, influences traffic trip safety and city image, is repaired and protected to it is as follows:
S1, by all loose surfaces of concrete-bridge, floating ash and electrochromic surface should polish off；
S2, the obvious shortcomings epoxy putty such as the crack on concrete-bridge surface and honeycomb, hole is levelling, then criticize scrape or
Spray epoxy putty；
S3 polishes flat to the epoxy putty layer surface being fully cured with electric grinding machine or sand paper, epoxy putty thickness
Degree is 0.5mm；
S4 coats aqueous double-component fluorocarbon coating twice after epoxy putty layer surface is dry, and aqueous double-component fluorine carbon applies
Material is with a thickness of 0.05mm；
S5 carries out natural curing to the surface of coating aqueous double-component fluorocarbon coating；
S6 carries out adhesion test to coating surface, and after alkali resistance test 30d, appearance of coat is not blistering, is not cracked, does not take off
It falls；The adhesion strength of coating and concrete surface is 1.8MPa, and resistance to salt water 2000h is without exception, stain resistance 6.2%, washable
Brush 30000 times unchanged, and artificial ageing resistance 1700h is not blistering, does not crack, does not fall off.
Embodiment 3
The epoxy putty of the present embodiment is high using adhesive force, the big no-solvent type epoxy putty of adhesion strength comprising A group
Point and B component, wherein component A is host agent, and B component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty component A formula: double
Phenol A type epoxy resin 30%；Titanium dioxide 10%；Silicon powder 30%；Ceramic powder 20%；Nitrile rubber 8%；Phenyl glycidyl ether
Reactive diluent 2%.Specifically, the ceramic powder uses the powder of 400 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty B component formula: rouge
Fat amine 32%；Silicon powder 60%；Fumed silica 8%.
The aqueous double-component fluorocarbon layer of the present embodiment use good weatherability, aqueous double-component fluorocarbon coating with high hardness,
Including component C and D component, wherein C component is host agent, and D component is curing agent.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in C component formula: fluoroolefins/ethylene
Base ether copolymer resins 50%；Titanium dioxide 15%；Barium sulfate 12.9%；Ultrafine ceramic powder 20%；Polyether siloxane copolymer wetting
Dispersing agent 0.5%；Mineral oil wax dispenser defoaming agent 0.1%；Polysiloxane leveling agents 0.5%；Polyether-polyurethane thickener
1%.The ultrafine ceramic powder uses the powder of 1500 mesh.
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in D component formula: polyisocyanate
Curing agent 50%；2-Butoxyethyl acetate 50%.
Certain domestic concrete-bridge, using 15 years, after the erosion corrosion of experience wind and rain, appearance was outmoded, concrete structure
The step of surface corrosion is serious, influences traffic trip safety and city image, is repaired and protected to it is as follows:
S1, by all loose surfaces of concrete-bridge, floating ash and electrochromic surface should polish off；
S2, the obvious shortcomings epoxy putty such as the crack on concrete-bridge surface and honeycomb, hole is levelling, then criticize scrape or
Spray epoxy putty；
S3 polishes flat to the epoxy putty layer surface being fully cured with electric grinding machine or sand paper, epoxy putty thickness
Degree is 2mm；
S4 coats aqueous double-component fluorocarbon coating twice after epoxy putty layer surface is dry, and aqueous double-component fluorine carbon applies
Material is with a thickness of 0.1mm；
S5 carries out natural curing to the surface of coating aqueous double-component fluorocarbon coating；
S6 carries out adhesion test to coating surface, and after alkali resistance test 30d, appearance of coat is not blistering, is not cracked, does not take off
It falls；The adhesion strength of coating and concrete surface is 1.6MPa, and resistance to salt water 2000h is without exception, stain resistance 6.0%, washable
Brush 30000 times unchanged, and artificial ageing resistance 1700h is not blistering, does not crack, does not fall off.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of concrete reparation and protection isolated form coating comprising concrete base layer (1), concrete base layer (1) surface
Levelling and surface is provided with epoxy putty layer (2), it is characterised in that: further includes aqueous coated on epoxy putty layer (2) surface
Two-component fluorocarbon layer (3).
2. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: epoxy putty layer (2)
With a thickness of 0.5~2mm.
3. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: aqueous double-component fluorine carbon
Layer (3) is with a thickness of 0.05~0.1mm.
4. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: the epoxy putty layer
(2) no-solvent type epoxy putty is used.
5. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: the epoxy putty layer
(2) component formula includes component A and B component, wherein
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in component A formula: bisphenol A type epoxy resin
27-50%；Titanium dioxide 0-10%；Silicon powder 10-30%；Ceramic powder 10-20%；Nitrile rubber 2-8%；Phenyl glycidyl ether
Reactive diluent 0-5%；
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in epoxy putty B component formula: fatty amine
32-45%；Silicon powder 40-60%；Fumed silica 2-8%.
6. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: the aqueous double-component
Fluorocarbon layer (3) component formula includes component C and D component, wherein
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in C component formula: fluoroolefins/vinyl ethers
Copolymer resins 45-65%；Titanium dioxide 15-25%；Barium sulfate 5-15%；Ultrafine ceramic powder 5-20%；Polyether siloxane copolymer
Wetting dispersing agent 0.5-2%；Mineral oil wax dispenser defoaming agent 0.1-0.5%；Polysiloxane leveling agents 0.5-3%；Polyethers is poly-
Urethane thickener 1-4%；
It is in terms of 100% by gross mass percentage, the mass percent of each component is as follows in D component formula: polyisocyanate solidification
Agent 50-80%；2-Butoxyethyl acetate 20-50%.
7. concrete reparation as described in claim 1 and protection isolated form coating, it is characterised in that: epoxy putty layer (2)
It is greater than or equal to 1.5MPa with the adhesion strength on concrete base layer (1) surface.
8. a kind of concrete reparation and means of defence, it is characterised in that: include the following steps,
S1, concrete surface processing: by all loose surfaces of concrete base layer (1), floating ash and electrochromic surface should polish off；
S2, coating epoxy putty；Concrete surface obvious shortcoming epoxy putty is levelling, then criticize and scrape or spray epoxy putty；
S3 polishes epoxy putty layer (2): polishing epoxy putty layer (2) the surface electric grinding machine or sand paper being fully cured
It is smooth；
S4 coats aqueous double-component fluorocarbon coating；After epoxy putty layer (2) dry tack free that step S3 is obtained, coat aqueous
Two-component fluorocarbon coating twice.
9. concrete reparation as claimed in claim 8 and protection isolated form coating, it is characterised in that: it further include step S5,
Natural curing is carried out to the surface of coating aqueous double-component fluorocarbon coating.
Priority Applications (1)
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| CN201811005551.1A CN109265197A (en) | 2018-08-30 | 2018-08-30 | Concrete reparation and protection isolated form coating and method |
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| CN112280361A (en) * | 2020-11-26 | 2021-01-29 | 湖南固特邦土木技术发展有限公司 | Solvent-free spraying type epoxy putty |
| CN116285597A (en) * | 2023-02-16 | 2023-06-23 | 上铁芜湖高新材料技术有限公司 | High-speed railway bridge concrete defect repairing and carbonization preventing material and construction method thereof |
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