CN106437035B - The fast repairing method and its reparation structure of epoxy-coated reinforcement construction coating damage - Google Patents
The fast repairing method and its reparation structure of epoxy-coated reinforcement construction coating damage Download PDFInfo
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- CN106437035B CN106437035B CN201610896236.7A CN201610896236A CN106437035B CN 106437035 B CN106437035 B CN 106437035B CN 201610896236 A CN201610896236 A CN 201610896236A CN 106437035 B CN106437035 B CN 106437035B
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- protective case
- anticorrosion
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- coating damage
- coating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/015—Anti-corrosion coatings or treating compositions, e.g. containing waterglass or based on another metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses provide the fast repairing method and its reparation structure of a kind of epoxy-coated reinforcement construction coating damage, for quickly repairing the coating damage generated in epoxy-coated reinforcement work progress, to improve epoxy-coated reinforcement construction damaged remediation efficiency and repairing effect.Anticorrosion belt or anticorrosion layer of paste are provided at the coating damage of the epoxy coating of reinforcing bar, wherein anticorrosion belt or anticorrosion layer of paste coverage area are more than 1~2cm of both ends at coating damage along reinforcing bar length direction respectively；Protective case is coated on the outside of anticorrosion belt or anticorrosion layer of paste, protective case coverage area is more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively.Protective case is divided into bilayer, and outer layer is the high molecular materials such as PVC, ABS, EVA or the PET with heat shrinkability characteristic, and internal layer is hot melt solid polymer material.There are three types of the structure types of protective case: the first is closed type protective case, and second is with the open type protective case of buckle, the third is wound around formula protective case.
Description
Technical field
The present invention relates to quickly repairing for epoxy-coated reinforcement field, especially a kind of epoxy-coated reinforcement construction coating damage
Compound method and its reparation structure.
Background technique
Epoxy-coated reinforcement is widely used in the higher ocean engineering of life requirement due to its good antiseptic property,
Such as port Zhuhai and Macao bridge, Construction of Hangzhou Bay Cross-sea Bridge.The epoxy coating on epoxy-coated reinforcement surface has good anti-corrosion effect, so
And it once wrecks and cannot repair, and is likely to that part corruption occurs during concrete structure is on active service at coating damage
Erosion, and its corrosion rate seriously affects overall structure durability commonly greater than uncoated reinforcing bar.Therefore, epoxy coating is protected
The integrality of reinforcing steel bar surface coating is most important.However, the construction of epoxy-coated reinforcement be related to storage, carrying, handling, processing,
Positioning with multiple processes such as link, pour, therefore work progress floating coat breakage is almost difficult to avoid that.It is broken for coating
The problem of damage, common processing method are artificial benefit swabbings, and this method is able to solve coating damage to a certain extent, but
Its repairing quality is often less than former coating quality.In addition, patching coating there are certain requirements surface treatment, if dealing with improperly,
It is poor to frequently can lead to coating adhesion, repairing effect is bad.However, being difficult since construction personnel is complicated, quality is irregular
Ensure the realization of coating damage repairing quality.Therefore, duty of the repairing of the damaged coating of epoxy-coated reinforcement construction to construction personnel
Ren Xin, skills in the process of construction requirement are very high, and due to needing surface treatment, the repeatedly works such as brushing, waiting curing of coatings, special protection
Sequence, heavy workload, efficiency is lower, seriously affects project progress.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of epoxy-coated reinforcement construction coating damages
Fast repairing method and its reparation structure, for quickly repairing the coating damage generated in epoxy-coated reinforcement work progress, from
And improve epoxy-coated reinforcement construction damaged remediation efficiency and repairing effect.
The present invention is achieved by the following technical solutions:
A kind of epoxy-coated reinforcement construction floating coat breakage reparation structure, it is broken in the coating of the epoxy coating (2) of reinforcing bar (1)
(5) are provided with anticorrosion belt or anticorrosion layer of paste (4) at damage, wherein anticorrosion belt or anticorrosion layer of paste coverage area edge
Reinforcing bar length direction is more than 1~2cm of both ends at coating damage respectively；Guarantor is coated on the outside of anticorrosion belt or anticorrosion layer of paste
Sheath (3), protective case coverage area are more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively.
Further, the protective case is divided into bilayer, and outer layer is that have PVC, ABS, EVA or PET of heat shrinkability characteristic contour
Molecular material, internal layer are hot melt solid polymer materials.
Further, the protective case is closed type protective case, and the closed type protective case is a kind of fully closed protection
Set is mainly used for quickly repairing the coating damage of also non-binding and fixing epoxy-coated reinforcement.
Further, the protective case is the open type protective case with buckle, and the open type protective case is open by half
Protective case and buckle composition are mainly used for quickly repairing the coating damage of binding and fixing epoxy-coated reinforcement；
Further, the buckle is to fix device made of the high molecular materials such as nylon, ABS, POM.
Further, the protective case is wound around formula protective case, and the wound form protective case is entwined by winding band, main
It is used to quickly repair the coating damage for having bound epoxy-coated reinforcement, winding band is bilayer, and outer layer is with heat shrinkability characteristic
High molecular materials, the internal layer such as PVC, ABS, EVA or PET be hot melt solid polymer material.
A kind of fast repairing method of epoxy-coated reinforcement construction coating damage is as follows, specifically includes the following steps:
Step 1: being cleaned and be surface-treated at coating damage, removal pollutant, foreign matter etc.；
Step 2: anticorrosion band or coating anticorrosion cream are wound at coating damage.Wherein, anticorrosion band coverage area edge
Reinforcing bar length direction is more than 1~2cm of both ends or so at coating damage respectively, and anticorrosion band section start winds 2 layers, then successively takes
55%~60% is connect, until winding 2 layers again at end；Anticorrosion cream need to be coated uniformly at coating damage, coating thickness 5~
8mm or so, coverage area require more than 1~2cm of surrounding or so at coating damage.
Step 3: according to the suitable protective case of epoxy-coated reinforcement diameter and installation condition selection.For non-binding and fixing
Reinforcing bar select closed type protective case, closed type protective case internal diameter need to be than the reinforcing bar after coating anticorrosive cream or looping anticorrosion band
Big 1~the 3cm of diameter, protective case length are more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively；For having bound
Fixed reinforcing bar selection open type protective case or wound form protective case, diameter and the length determination of open type protective case and closed type
Protective case is identical, the Landfill covering range of wound form protective case (band-like protection cover material used identical as above two protective case
Total length determined jointly by coverage area and bar diameter).
Step 4: protective case is fixed on the outside of anticorrosion band or anticorrosion cream by heat gun.For non-binding and fixing
Epoxy-coated reinforcement is directly inserted in closed type protective case from end reinforced, and is moved on the outside of anticorrosion band or anticorrosion cream, so
It is circumferentially evenly heated protection sleeve pipe from centre with heat gun afterwards, extends again toward two sides after shrinking it completely and heats, for table
The uneven place in face needs to reheat, and finally makes protective case uniform fold except anticorrosion band or anticorrosion cream.To entirety
After heating, then turns down temperature and reheat the hot melt solid polymer material that one time makes inside protective case and sufficiently overflow.
The heating temperature of protective case is preferably between 80 DEG C~110 DEG C, must not exceed 250 DEG C.When heating, needs uniformly and incrementally increases,
The tools such as attention pressure roller exclude air simultaneously.For the epoxy-coated reinforcement of binding and fixing, using open type or wound form
Protective case.Half open protective case is sleeved on except anticorrosion band or anticorrosion cream by open type protective case, and then installation is fixed
Buckle, subsequent installation steps and requirement are identical as closed type protective case.Wound form protective case is uniform by band-like protection cover material
Be wrapped in except anticorrosion band or anticorrosion cream, one layer of every winding is fixed one layer with heat gun heating, other installation requirements with close
Box-like protective case is identical.
Beneficial effects of the present invention are as follows:
(1) simple surface cleaning and processing are only needed when the present invention uses, can directly be coated in coating application breakage,
Stringent surface treatment, repeatedly brushing paint are avoided, without waiting for curing time, does not also need particularly to protect, greatly
Repair time is shortened, construction efficiency can be significantly improved.
(2) anticorrosion cream of the invention or anticorrosion band have good antiseptic property；Protective case internal layer is solid for hot melt
Body high molecular material can generate tight binding ability with reinforcing bar coating, have the effect of completely cutting off the media such as air, moisture；Protective case
Outer layer is hot shortness's high molecular material, and intensity with higher after pyrocondensation can resist the impact of external force, significantly enhance protection
Effect.Since with more anti-corrosion layer structures and outer protective structure, the present invention is compared with the coating for mending brush, anti-corrosion effect and resistance to punching
Performance is hit all to be obviously improved.In addition, the present invention has the protective case of multiple structural forms, it can be used for repairing different installation shapes
The breakage of state epoxy-coated reinforcement.
(3) principle of the invention be simple and convenient to operate, construct it is convenient, cheap, can greatly reduce construction personnel it is complicated,
The factors bring repairing qualities such as quality is irregular are uncertain, broken especially suitable for construction site epoxy-coated reinforcement coating
The quick reparation and protection of damage.
Detailed description of the invention
Fig. 1 is that structural schematic diagram is repaired in epoxy-coated reinforcement construction floating coat breakage.
Fig. 2 is the cross-sectional view that structure is repaired in epoxy-coated reinforcement construction floating coat breakage.
Fig. 3 is the schematic diagram of closed type protective case.
Fig. 4 is the schematic diagram of open type protective case.
Fig. 5 is the schematic diagram of wound form protective case.
In figure: 1-reinforcing bar；2-epoxy coatings；3-protective cases；4-anticorrosion belts or anticorrosion layer of paste；5- coating is broken
At damage；6-buckles, 3-1-closed type protective case, 3-2-open type protective case, 3-3-winding band.
Specific embodiment
Technical solution of the present invention is further illustrated combined with specific embodiments below.
Referring to attached drawing 1-2, a kind of epoxy-coated reinforcement construction floating coat breakage reparation structure, in the epoxy coating 2 of reinforcing bar 1
Coating damage at 5 be provided with anticorrosion belt or anticorrosion layer of paste 4, wherein anticorrosion belt or anticorrosion layer of paste 4 cover model
Enclose along reinforcing bar length direction is more than 1~2cm of both ends at coating damage respectively, and the anticorrosion band is by viscoelastic polyolefin high score
The flexible-belt that sub- material and tension macromolecular antiseptic film are constituted, the anticorrosion cream are viscoelastic polyolefin high molecular material；?
Protective case 3 is coated on the outside of anticorrosion belt or anticorrosion layer of paste 4, protective case coverage area is more than respectively along reinforcing bar length direction
5~6cm of both ends at coating damage；
Referring to attached drawing 3-5, the protective case 3 divides for bilayer, outer layer be have heat shrinkability characteristic PVC, ABS, EVA or
The high molecular materials such as PET, internal layer are hot melt solid polymer materials；There are three types of the structure types of the protective case: the first
It is closed type protective case 3-1, second is with the open type protective case 3-2 of buckle 6, the third is wound around formula protective case；
The closed type protective case (Fig. 3) is a kind of fully closed protective case, is mainly used for quickly reparation and does not bind also
The coating damage of fixed epoxy-coated reinforcement；
The open type protective case (Fig. 4) is made of half open protective case and buckle, is mainly used for quickly repairing and tie up
Prick the coating damage of fixed epoxy-coated reinforcement.The buckle 6 is fixed made of the high molecular materials such as nylon, ABS, POM
Device；
The wound form protective case (Fig. 5) is entwined by winding band 3-3, is mainly used for quickly reparation and has been bound epoxy
The coating damage of coated reinforcement, winding band 3-3 is bilayer, and outer layer is that have PVC, ABS, EVA or PET of heat shrinkability characteristic contour
Molecular material, internal layer are hot melt solid polymer materials.
The fast repairing method of epoxy-coated reinforcement construction coating damage is as follows:
Step 1: being cleaned and be surface-treated at coating damage, removal pollutant, foreign matter etc.；
Step 2: 5 winding anticorrosion bands or coating anticorrosion cream at coating damage.Wherein, anticorrosion band coverage area
It is respectively more than 1~2cm of both ends or so at coating damage along reinforcing bar length direction, anticorrosion band section start winds 2 layers, then successively
Overlap joint 55%~60%, until winding 2 layers again at end；Anticorrosion cream need to be coated uniformly at coating damage, and coating thickness is 5
~8mm or so, coverage area require more than 1~2cm of surrounding or so at coating damage.
Step 3: according to the suitable protective case of epoxy-coated reinforcement diameter and installation condition selection.For non-binding and fixing
Reinforcing bar select closed type protective case 3-1, after closed type protective case internal diameter need to be than coating anticorrosive cream or looping anticorrosion band
Big 1~the 3cm of bar diameter, protective case length are more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively；For
The reinforcing bar selection open type protective case 3-2 or wound form protective case of binding and fixing, the diameter and length of open type protective case determine
It is identical as closed type protective case, the Landfill covering range of wound form protective case (band-like guarantor used identical as above two protective case
The total length of sheath material is determined jointly by coverage area and bar diameter).
Step 4: protective case is fixed on the outside of anticorrosion band or anticorrosion cream by heat gun.For non-binding and fixing
Epoxy-coated reinforcement is directly inserted in closed type protective case from end reinforced, and is moved on the outside of anticorrosion band or anticorrosion cream, so
It is circumferentially evenly heated protection sleeve pipe from centre with heat gun afterwards, extends again toward two sides after shrinking it completely and heats, for table
The uneven place in face needs to reheat, and finally makes protective case uniform fold except anticorrosion band or anticorrosion cream.To entirety
After heating, then turns down temperature and reheat the hot melt solid polymer material that one time makes inside protective case and sufficiently overflow.
The heating temperature of protective case is preferably between 80 DEG C~110 DEG C, must not exceed 250 DEG C.When heating, needs uniformly and incrementally increases,
The tools such as attention pressure roller exclude air simultaneously.For the epoxy-coated reinforcement of binding and fixing, using open type or wound form
Protective case.Half open protective case is sleeved on except anticorrosion band or anticorrosion cream by open type protective case, and then installation is fixed
Buckle, subsequent installation steps and requirement are identical as closed type protective case.Wound form protective case is uniform by band-like protection cover material
Be wrapped in except anticorrosion band or anticorrosion cream, one layer of every winding is fixed one layer with heat gun heating, other installation requirements with close
Box-like protective case is identical.
Whether the installation quality of method check protection set is qualified by visual observation: the up-to-standard standard of protective case is: installation is equal
Even, surfacing, bubbling, gap, covers phenomena such as deficiency, cracking, protective case internal layer hot melt solid macromolecule material at corrugationless
Expect that uniform melt is overflowed.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (6)
1. structure is repaired in a kind of epoxy-coated reinforcement construction floating coat breakage, it is characterised in that: the epoxy coating in reinforcing bar (1)
(2) (5) are provided with anticorrosion belt or anticorrosion layer of paste (4) at coating damage, wherein anticorrosion belt or anticorrosion layer of paste
Coverage area is more than 1~2cm of both ends at coating damage along reinforcing bar length direction respectively；Outside anticorrosion belt or anticorrosion layer of paste
Side is coated with protective case (3), and protective case coverage area is more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively；
The fast repairing method of the epoxy-coated reinforcement construction coating damage, specifically includes the following steps:
Step 1: being cleaned and be surface-treated at coating damage, and pollutant, foreign matter are removed；
Step 2: anticorrosion band or coating anticorrosion cream are wound at coating damage；Wherein, anticorrosion band coverage area is along reinforcing bar
Length direction is more than 1~2cm of both ends at coating damage respectively, and anticorrosion band section start winds 2 layers, then successively overlap joint 55%~
60%, until winding 2 layers again at end；Anticorrosion cream need to be coated uniformly at coating damage, and coating thickness is in 5~8mm, covering
Range requires more than 1~2cm of surrounding at coating damage；
Step 3: according to the suitable protective case of epoxy-coated reinforcement diameter and installation condition selection；For the steel of non-binding and fixing
Muscle selects closed type protective case, and closed type protective case internal diameter need to be than the bar diameter after coating anticorrosive cream or looping anticorrosion band
Big 1~3cm, protective case length are more than 5~6cm of both ends at coating damage along reinforcing bar length direction respectively；For binding and fixing
Reinforcing bar selection open type protective case or wound form protective case, the diameter and length of open type protective case are determining to be protected with closed type
Cover identical, the Landfill covering range of wound form protective case is identical as above two protective case；
Step 4: protective case is fixed on the outside of anticorrosion band or anticorrosion cream by heat gun；For the epoxy of non-binding and fixing
Coated reinforcement is directly inserted in closed type protective case from end reinforced, and is moved on the outside of anticorrosion band or anticorrosion cream, then uses
Heat gun is circumferentially evenly heated protection sleeve pipe from centre, extends again toward two sides after shrinking it completely and heats, recessed for surface
Convex uneven place needs to reheat, and finally makes protective case uniform fold except anticorrosion band or anticorrosion cream, to whole heating
After, then turn down temperature and reheat the hot melt solid polymer material that one time makes inside protective case and sufficiently overflow, it protects
The heating temperature of set is preferably between 80 DEG C~110 DEG C, must not exceed 250 DEG C, when heating, is needed uniformly and is incrementally increased, simultaneously
Pay attention to excluding air with pressure roller tool；For the epoxy-coated reinforcement of binding and fixing, using open type or wound form protective case,
Half open protective case is sleeved on except anticorrosion band or anticorrosion cream by open type protective case, then installs fixed card buckle, with
Installation steps and requirement afterwards are identical as closed type protective case；Wound form protective case is by band-like protection cover material uniform winding anti-
Except corrosion band or anticorrosion cream, one layer of every winding is fixed one layer with heat gun heating, and other installation requirements and closed type are protected
It covers identical.
2. structure is repaired in epoxy-coated reinforcement construction floating coat breakage according to claim 1, it is characterised in that: the guarantor
Sheath is divided into bilayer, and outer layer is PVC, ABS, EVA or PET high molecular material with heat shrinkability characteristic, and internal layer is that hot melt is solid
Body high molecular material.
3. structure is repaired in epoxy-coated reinforcement construction floating coat breakage according to claim 1, it is characterised in that: the guarantor
Sheath is closed type protective case, and the closed type protective case is a kind of fully closed protective case, is mainly used for quickly repairing also
The coating damage of non-binding and fixing epoxy-coated reinforcement.
4. structure is repaired in epoxy-coated reinforcement construction floating coat breakage according to claim 1, it is characterised in that: the guarantor
Sheath is the open type protective case with buckle, and the open type protective case is made of half open protective case and buckle, mainly
For quickly repairing the coating damage of binding and fixing epoxy-coated reinforcement.
5. structure is repaired in epoxy-coated reinforcement construction floating coat breakage according to claim 4, it is characterised in that: the card
Button is to fix device made of nylon, ABS, POM high molecular material.
6. structure is repaired in epoxy-coated reinforcement construction floating coat breakage according to claim 1, it is characterised in that: the guarantor
Sheath is wound around formula protective case, and the wound form protective case is entwined by winding band, is mainly used for quickly reparation and has bound
The coating damage of epoxy-coated reinforcement；Winding band is bilayer, and outer layer is PVC, ABS, the EVA or PET high with heat shrinkability characteristic
Molecular material, internal layer are hot melt solid polymer materials.
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| CN201610896236.7A CN106437035B (en) | 2016-10-14 | 2016-10-14 | The fast repairing method and its reparation structure of epoxy-coated reinforcement construction coating damage |
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| CN108868006A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | The epoxy coating column tie-bar binding method of corrosive environment Frame Column Under |
| CN107355085A (en) * | 2017-07-25 | 2017-11-17 | 中铁六局集团天津铁路建设有限公司 | The guard method of reserved steel bar at the top of a kind of structural column |
| CN111172896A (en) * | 2020-01-02 | 2020-05-19 | 上海浦江缆索股份有限公司 | Inhaul cable repairing method |
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