CN106011871A - Method for protecting concrete structure cathode, and apparatus thereof - Google Patents
Method for protecting concrete structure cathode, and apparatus thereof Download PDFInfo
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- CN106011871A CN106011871A CN201610635606.1A CN201610635606A CN106011871A CN 106011871 A CN106011871 A CN 106011871A CN 201610635606 A CN201610635606 A CN 201610635606A CN 106011871 A CN106011871 A CN 106011871A
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- concrete
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- negative electrode
- protection
- reinforcing bar
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
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Abstract
The invention provides a method for protecting a concrete structure cathode, and an apparatus thereof, and belongs to the field of applied current cathode protection. The method for protecting the concrete structure cathode comprises the following steps: S100, wrapping the surface of reinforced concrete with a layer of a concrete anode; and S200, electrically connecting the positive electrode of a direct current power supply with the concrete anode, and electrically connecting the negative electrode of the direct current power supply with steel reinforcements in the reinforced concrete. The apparatus for protecting the concrete structure cathode comprises the steel reinforcements, concrete, the concrete anode and the direct current power supply, the concrete is casted on the steel reinforcements to form the reinforced concrete, the reinforced concrete is wrapped with the concrete anode, the steel reinforcements are electrically connected with the negative electrode of the direct current power supply, and the concrete anode is electrically connected with the positive electrode of the direct current power supply. The method and the apparatus have a simple structure and can effectively protect the steel reinforcements in the reinforced concrete in order to prolong the service life of the concrete.
Description
Technical field
The present invention relates to impressed current cathodic protection field, mixed in particular to one protection
The method and apparatus of Xtah Crude Clay structure negative electrode.
Background technology
Rust of Rebar in Concrete has become affects the main of reinforced concrete structures durability
One of factor, people will prevent steel bar corrosion and improve reinforced concrete structures durability conduct
Main direction of studying, it is thus achieved that substantial amounts of achievement in research, reinforcing bar guard technology constantly improves.Mesh
Before, the reinforcing bar protection that cathodic protection is widely used in xoncrete structure, impressed current negative electrode
Protection system is the state-of-the-art technology of Steel Bars in Concrete Structure protection, is born with additional power source by reinforcing bar
The most connected, make reinforcing bar become negative electrode, and then reach to protect the purpose of reinforcing bar.
Inventor finds under study for action, and existing guard method at least has the disadvantage in that existing
The anode construction of guard method complicated, easily loss and its character operationally between the longest time the most not
Stable.
Summary of the invention
It is an object of the invention to provide a kind of method protecting xoncrete structure negative electrode, to improve
The loss complicated, easy of the anode construction of existing guard method and the problem that can not work long hours.
The present invention also aims to provide a kind of device protecting xoncrete structure negative electrode, to change
The loss complicated, easy of the anode construction of kind existing guard method and the problem that can not work long hours.
The present invention is achieved in that
Based on the first above-mentioned purpose, the invention provides a kind of protection xoncrete structure negative electrode
Method, the method includes:
Step S100, wrap up one layer of described concrete sun on the surface of the armored concrete of entity
Pole；
Step S200, the positive pole of DC source is electrically connected with described concrete anode, by institute
The negative pole stating DC source electrically connects with the reinforcing bar in described armored concrete.
The method of the protection xoncrete structure negative electrode that the present invention provides implements simple and convenient, knot
Structure is simple, and effectively can protect the reinforcing bar in armored concrete, makes armored concrete
In reinforcing bar it can be avoided that corroded by environmental attack medium, thus extend reinforcing bar and concrete
In the service life of structure, concrete anode has high-strength, good cracking resistance, decay resistance,
Concrete structure durability cover layer is provided, can while obtaining preferable protected effect significantly
Improve structural behaviour, reduce cost.
Further, in described step S100, described concrete anode includes concrete substrate
With carbon fibre fabric net, first one layer of carbon fibre fabric of surface configuration at described armored concrete
Net, is then poured into described carbon fibre fabric by described concrete substrate online.
Carbon fibre fabric net not only possesses good mechanical property and decay resistance, and it is led
The best, electrochemical properties, close to inert metal, is possible not only to transmit impressed current, and
Service life is long；Carbon fibre fabric net is applicable to the difformity of structure, different parts, lays
Needing structural region to be protected, its area coverage is big, can transmit cathodic protection current uniformly,
Concrete substrate is good with reinforced concrete structure surface compatability simultaneously, bonding more firm,
And concrete substrate can avoid short circuit between carbon fibre fabric net and reinforcing bar.
Further, in described step S100: described carbon fibre fabric net is provided with multilamellar,
It is provided with described concrete substrate between adjacent described carbon fibre fabric net.
Multi-layer concrete matrix and multilamellar carbon fibre fabric net formed after being crisscross arranged a kind of near between
Away from mounting means so that structure is in the voltage gradient of anode, cathodic protection effect can be improved
Rate.
Further, described concrete substrate uses the mode of injection to arrange carbon fibre fabric
On the net.
The mode using injection is constructed simply, can make to mix with the density of Concrete Structure matrix
More firm bonding with reinforced concrete surface of solidifying soil matrix body, meanwhile, uses the mode sprayed
The adhesive property between concrete substrate and carbon fibre fabric net can be improved.
Based on the second above-mentioned purpose, present invention also offers a kind of protection xoncrete structure cloudy
The device of pole, including reinforcing bar, concrete, concrete anode and DC source, described concrete
Being cast in the armored concrete forming entity on described reinforcing bar, described concrete anode is wrapped in institute
Stating armored concrete, described reinforcing bar is connected with the negative electricity of described DC source, described concrete
Anode is connected with the positive electrical of described DC source.
The device of the protection xoncrete structure negative electrode that the present invention provides by concrete anode, reinforcing bar and
DC source forms cathodic protection system, concrete anode do anode, it is not necessary to extra auxiliary
Anode, simple in construction, and owing to concrete anode and concrete have the preferable compatibility, peace
Filling very convenient, area coverage is very big simultaneously, and such reinforcing bar can be protected comprehensively so that it is
Service life increases, and reinforcing bar is completely wrapped after being connected with DC source again, it is possible to reduce electric energy
Consumption, thus reduce waste of energy.
Further, described concrete anode includes the high property using fine aggregate concrete to make
Can concrete substrate.
High performance concrete matrix have high-strength, cracking resistance, anticorrosive, good endurance, fire prevention,
The advantages such as designability is strong, it is adaptable to tie in thin-wall construction or corrosion resistant member and adverse circumstances
The clad material of structure and structural strengthening.
Further, described concrete anode also includes carbon fibre fabric net, described carbon fiber
Fabric web is installed on described reinforced concrete structure surface, and described carbon fibre fabric net is positioned at described
Between armored concrete and described concrete substrate.
Carbon fibre fabric net not only possesses good mechanical property and decay resistance, and it is led
The best, electrochemical properties, close to inert metal, is possible not only to transmit impressed current, and
Service life is long；Carbon fibre fabric net is applicable to the difformity of structure, different parts, lays
Needing structural region to be protected, its area coverage is big, can transmit cathodic protection current uniformly,
Concrete substrate is good with reinforced concrete structure surface compatability simultaneously, bonding more firm,
And concrete substrate can avoid short circuit between carbon fibre fabric net and reinforcing bar, can also improve simultaneously
The cracking resistance of concrete substrate is more firm with armored concrete bonding.
Further, described reinforcing bar includes many longitudinal reinforcements and Duo Gen stirrup, described in many
Longitudinal reinforcement negative pole with described DC source respectively is connected, and many described stirrups are respectively with described
The negative pole of DC source connects, and many described longitudinal reinforcements set along the circumferentially-spaced of described stirrup
Putting, many described stirrups are spaced along the length direction of described longitudinal reinforcement and arrange.
Many longitudinal reinforcements and Duo Gen stirrup make the structure of armored concrete the most stable, with
Time, many longitudinal reinforcements negative pole with described DC source respectively is connected, many stirrups respectively with
The negative pole of described DC source connects, and can form longitudinal reinforcement and stirrup and more comprehensively protect
Protect.
Further, adjacent described longitudinal reinforcement is electrically connected by wire.
For measuring the electrical connectivity between longitudinal reinforcement.
Further, the device of described protection xoncrete structure negative electrode also includes control system, institute
State control system to be connected between the negative pole of described DC source and described reinforcing bar.
Direct current generator can be controlled by control system so that it is keeps lasting output, cycle
Property be adjusted effectively reducing the consumption of electric energy, can also be to reinforcing bar with timed unit
It is monitored, the extent of corrosion of calculating reinforcing bar can be observed by controlling device.
Compared with prior art, the present invention realizes providing the benefit that:
The method of the protection xoncrete structure negative electrode that the present invention provides implements simple and convenient, knot
Structure is simple, and effectively can protect the reinforcing bar in armored concrete, makes armored concrete
In reinforcing bar it can be avoided that corroded by environmental attack medium, thus extend reinforcing bar and concrete
In the service life of structure, concrete anode has high-strength, good cracking resistance, decay resistance,
Concrete structure durability cover layer is provided, can while obtaining preferable protected effect significantly
Improve structural behaviour, reduce cost.
The device of the protection xoncrete structure negative electrode that the present invention provides by concrete anode, reinforcing bar and
DC source forms cathodic protection system, concrete anode do anode, it is not necessary to extra auxiliary
Anode, simple in construction, and owing to concrete anode and concrete have the preferable compatibility, peace
Filling very convenient, area coverage is very big simultaneously, and such reinforcing bar can be protected comprehensively so that it is
Service life increases, and reinforcing bar is completely wrapped after being connected with DC source again, it is possible to reduce electric energy
Consumption, thus reduce waste of energy.
Accompanying drawing explanation
Fig. 1 shows the flow chart of the method for the protection xoncrete structure negative electrode that the present invention provides；
Fig. 2 shows showing of a kind of device protecting xoncrete structure negative electrode that the present invention provides
It is intended to；
Fig. 3 shows that the another kind that the present invention provides protects the device of xoncrete structure negative electrode
Schematic diagram.
In figure:
Longitudinal reinforcement 101；Stirrup 102；Reinforcing bar 103；Concrete 104；Concrete substrate
105；Carbon fibre fabric net 106；DC source 107；Control system 108；Concrete anode
109。
Detailed description of the invention
Rust of Rebar in Concrete has become affects the main of reinforced concrete structures durability
One of factor, people will prevent steel bar corrosion and improve reinforced concrete structures durability conduct
Main direction of studying, it is thus achieved that substantial amounts of achievement in research, reinforcing bar guard technology constantly improves.Mesh
Before, the reinforcing bar protection that cathodic protection is widely used in xoncrete structure, impressed current negative electrode
Protection system is the state-of-the-art technology of Steel Bars in Concrete Structure protection, is born with additional power source by reinforcing bar
The most connected, make reinforcing bar become negative electrode, and then reach to protect the purpose of reinforcing bar.Inventor is in research
Middle discovery, existing guard method at least has the disadvantage in that the anode of existing guard method
Structure is complicated, easily loss and its character operationally between the longest time the most unstable.
In order to make the problems referred to above be improved, the invention provides a kind of protection xoncrete structure
The method of negative electrode, the method includes: step S100, on the surface of armored concrete of entity
Wrap up one layer of described concrete anode；Step S200, the positive pole of DC source is mixed with described
Solidifying soil anode electrical connection, by the negative pole of described DC source and the reinforcing bar in described armored concrete
Electrical connection.The method of the protection xoncrete structure negative electrode that the present invention provides implements simple side
Just, simple in construction, and can effectively the reinforcing bar in armored concrete be protected, make reinforcing bar
Reinforcing bar in concrete is it can be avoided that corroded by environmental etch medium, thus extends coagulation
The service life of soil mechanism.
Present invention also offers a kind of device protecting xoncrete structure negative electrode, including reinforcing bar,
Concrete, concrete anode and DC source, described concrete is cast on described reinforcing bar formation
The armored concrete of entity, described concrete anode is wrapped in described armored concrete, described steel
Muscle is connected with the negative electricity of described DC source, described concrete anode and described DC source
Positive electrical connects.The device of the protection xoncrete structure negative electrode that the present invention provides is by concrete sun
Pole, reinforcing bar and DC source form cathodic protection system, concrete anode do anode, it is not necessary to
Extra impressed current anode, simple in construction, and owing to concrete anode and concrete have preferably
The compatibility, installs very convenient, and area coverage is very big simultaneously, and such reinforcing bar can obtain comprehensively
Protection so that it is service life increases, and reinforcing bar is completely wrapped after being connected with DC source again, can
To reduce the consumption of electric energy, thus reduce waste of energy.
Below by specific embodiment and combine accompanying drawing and the present invention is done further in detail
Describe.
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, above in conjunction with
Accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention has been carried out clear,
Be fully described by, it is clear that described embodiment be a part of embodiment of the present invention rather than
Whole embodiments.Generally herein described in accompanying drawing and the assembly of the embodiment of the present invention that illustrates
Can arrange with various different configurations and design.
Therefore, the detailed description not purport of the above embodiments of the invention to providing in the accompanying drawings
Limit the scope of claimed invention, but be merely representative of the selected enforcement of the present invention
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under work premise, broadly falls into the scope of protection of the invention.
It should also be noted that similar label and letter expression similar terms in following accompanying drawing, therefore,
The most a certain Xiang Yi accompanying drawing is defined, then need not it is carried out in accompanying drawing subsequently
Definition and explanation further.
In describing the invention, it should be noted that term " " center ", " on ", " interior ",
Orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship,
Or this invention product orientation usually put or position relationship when using, it is for only for ease of
Describe the present invention and simplification description rather than instruction or the device of hint indication or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention
Restriction.Describe additionally, term " first ", " second " etc. are only used for distinguishing, and can not manage
Solve as instruction or hint relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clear and definite regulation and limit
Fixed, term " is arranged ", " installation ", " being connected ", " connection " should be interpreted broadly, such as,
It can be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art,
Above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
It should be noted that in the case of not conflicting, the embodiment in the present invention and embodiment
In feature can be mutually combined.
The embodiment of the method for protection xoncrete structure negative electrode
With reference to Fig. 1, present embodiments provide a kind of method protecting xoncrete structure negative electrode,
The method includes:
Step S100, wrap up a layer concrete anode on the surface of the armored concrete of entity
1009；
Step S200, the positive pole of DC source 107 is electrically connected with concrete anode 109,
The negative pole of DC source 107 is electrically connected with the reinforcing bar 103 in armored concrete.
The method of the protection xoncrete structure negative electrode that the present embodiment provides implements simple and convenient,
Simple in construction, and can effectively the reinforcing bar 103 in armored concrete be protected, make reinforcing bar
Reinforcing bar 103 in concrete is it can be avoided that corroded by environmental attack medium, thus extends mixed
The service life of Ning Tu mechanism.
In step S100, concrete anode includes concrete substrate 105 and carbon fibre fabric net
106, can be first at one layer of carbon fibre fabric net 106 of surface configuration of armored concrete, then
Again concrete substrate 105 is poured on carbon fibre fabric net 106.Carbon fibre fabric net 106
Not only possess good mechanical property and decay resistance, and its electric conductivity is good, electrochemistry
Characteristic, close to inert metal, is possible not only to transmit impressed current, and service life is long；Carbon is fine
Dimensional fabric net 106 is applicable to the difformity of structure, different parts, and being laid on need to be to be protected
Structural region, its area coverage is big, can transmit cathodic protection current uniformly, can also make simultaneously
More firm bonding with armored concrete of concrete substrate 105.
In step S100: carbon fibre fabric net 106 is provided with multilamellar, adjacent carbon fiber is knitted
Concrete substrate 105 it is provided with between thing net 106, and at outermost carbon fibre fabric net 106
Outside also should spray a layer concrete matrix 105.Multi-layer concrete matrix 105 and multilamellar carbon
Fabric net 106 forms a kind of nearly spacing mounting means after being crisscross arranged so that structure is in
In the voltage gradient of anode, cathodic protection efficiency can be improved.
Concrete substrate 105 can arrange carbon fibre fabric net in the way of being to use injection
On 106.The mode using injection can improve concrete substrate 105 and carbon fibre fabric net 106
Between adhesive property, meanwhile, use injection mode can avoid concrete substrate 105
And produce bubble between carbon fibre fabric net 106.
Before carbon fibre fabric net 106 is arranged on armored concrete, it is also possible to steel
The surface of reinforced concrete carries out dabbing, clears up and moisten process, after so processing, either
The adhesive property of carbon fibre fabric net 106 or concrete substrate 105 and reinforced concrete surface
All will be greatly improved.
The device embodiment of protection xoncrete structure negative electrode
Refering to Fig. 2 and Fig. 3, present embodiments provide a kind of dress protecting xoncrete structure negative electrode
Put, including reinforcing bar 103, concrete 104, concrete anode 109 and DC source 107,
Concrete 104 is arranged at the outer armored concrete forming entity of reinforcing bar 103, concrete anode
109 are wrapped in armored concrete, and reinforcing bar 103 is connected with the negative electricity of DC source 107, mixed
Solidifying soil anode 109 is connected with the positive electrical of DC source 107.
The present embodiment provide protection xoncrete structure negative electrode device by concrete anode 105,
Reinforcing bar 103 and DC source 107 form cathodic protection system, concrete anode 109 do sun
Pole, it is not necessary to extra impressed current anode, simple in construction, and due to concrete anode 109 and coagulation
Soil 104 has the preferable compatibility, the most very convenient, and area coverage is very big simultaneously,
So reinforcing bar 103 can be protected comprehensively so that it is service life increases, and reinforcing bar 103 is complete
After full parcel is connected with DC source 107 again, it is possible to reduce the consumption of electric energy, thus reduce electricity
Can waste.
Concrete anode 109 includes concrete substrate 105 and connecting conductor layer, connects conductor
Layer is installed on armored concrete, and connecting conductor layer is positioned at armored concrete and concrete collective 105
Between.It is more firm that connecting conductor layer can make that concrete substrate 105 is connected with armored concrete
Gu.
Connecting conductor layer can be carbon fibre fabric net 106.Carbon fibre fabric net 106 is not only
Possess good mechanical property and decay resistance, and its electric conductivity is good, electrochemical properties
Close to inert metal, it is possible not only to transmit impressed current, and service life is long；Carbon fiber is knitted
Thing net 106 is applicable to the difformity of structure, different parts, is laid on and needs structure to be protected
Region, its area coverage is big, can transmit cathodic protection current uniformly, can also make coagulation simultaneously
It is more firm that soil matrix body 105 is connected with armored concrete.
Concrete anode 109 can include multilamellar carbon fibre fabric net 106 and multi-layer concrete
Matrix 105, multi-layer concrete matrix 105 is crisscross arranged with multilamellar carbon fibre fabric net 106,
And the number of plies of concrete substrate 105 is identical with the number of plies of carbon fibre fabric net 106.Multilamellar coagulation
Soil matrix body 105 and multilamellar carbon fibre fabric net 106 form a kind of nearly spacing and install after being crisscross arranged
Mode so that structure is in the voltage gradient of anode, can improve cathodic protection efficiency.
Concrete substrate 105 can arrange carbon fibre fabric net in the way of being to use injection
On 106.The mode using injection can make concrete substrate 105 and carbon fibre fabric net 106
Connect is more firm, meanwhile, uses the mode of injection can avoid concrete substrate 105
And produce bubble between carbon fibre fabric net 106.
Concrete substrate 105 can be to use fine aggregate concrete to make.Fine aggregate concrete
There is the advantages such as high-strength, cracking resistance, anticorrosive, good endurance, fire prevention, designability are strong, suitable
The clad material of structure and structure in thin-wall construction or corrosion resistant member and adverse circumstances
Reinforce.
Gather materials also known as aggregate.Aggregate is divided into coarse aggregate and fine aggregate.Concrete mainly comprise material
One of material.Act primarily as skeleton function and reduce due to Binder Materials drying shrinkage in condensing hardening process
Change in volume caused by bulking, the most also as the cheap inserts of Binder Materials.Have natural
Gather materials and artificial aggregate point, the former is such as rubble, cobble, Pumex, natural sand etc.；The latter is such as
Cinder, slag, haydite, expanded perlite etc..Granule apparent density is less than 1700 kilograms/cube
The title light-weight aggregate that gathers materials of rice, in order to manufacture normal concrete；Heavy especially gathers materials, in order to manufacture
Loaded concrete, such as radiation shield concrete.Gather materials and be divided into coarse aggregate and fine aggregate by granular size,
General provision particle diameter is coarse aggregate more than 4.75 millimeters of persons, and such as rubble and cobble, particle diameter is from childhood
It is fine aggregate in 4.75 millimeters of persons, such as natural sand.
Reinforcing bar 103 includes many longitudinal reinforcements 101 and Duo Gen stirrup 102, many longitudinal steel
Muscle 101 negative pole with DC source 107 respectively is connected, many stirrups 102 respectively with unidirectional current
The negative pole in source 107 connects, many longitudinal reinforcement 101 being provided at circumferentially spaced along stirrup 102,
Many stirrups 102 are spaced along the length direction of longitudinal reinforcement 101 and arrange.Many longitudinal reinforcements
101 and Duo Gen stirrups 102 make the structure of armored concrete the most stable, indulge for many meanwhile
To reinforcing bar 101, negative pole with DC source 107 is connected respectively, many stirrups 102 respectively with directly
The negative pole of stream power supply 107 connects, and can be formed more complete to longitudinal reinforcement 101 and stirrup 102
The protection in face.
Certainly, reinforcing bar 103 should at least include four longitudinal reinforcements 101 and at least connect root hoop
Muscle 102.
Adjacent longitudinal reinforcement 101 is electrically connected by wire.For measuring longitudinal reinforcement 101
Between electrical connectivity.
Longitudinal reinforcement 101 and stirrup 102 can be connected by tied silk.Longitudinal reinforcement 101 He
Stirrup 102 connects can connect more firm, meanwhile, at casting concrete by tied silk
Time do not have bubble etc. yet and affect the impurity of reinforced concrete structure intensity.
The device of protection xoncrete structure negative electrode also includes control system 108, control system 108
It is connected between the negative pole of DC source 107 and reinforcing bar 103.Control system 108 can be to directly
Stream motor is controlled so that it is keeping lasting output, being periodically adjusted can be effective
Reduce the consumption of electric energy, reinforcing bar 103 can also be monitored with timed unit, Ke Yitong
Cross the extent of deterioration controlling device observation calculating reinforcing bar 103.
The reinforced concrete structure that the present invention is directed to, it is adaptable to various components, as beam, post,
Plate and other component forms.
In sum, the method for the protection xoncrete structure negative electrode that the present invention provides implements letter
Folk prescription just, simple in construction, the and effectively reinforcing bar in armored concrete being protected, make
Reinforcing bar in armored concrete is it can be avoided that corroded by environmental attack medium, thus extends steel
The service life of muscle.
The device of the protection xoncrete structure negative electrode that the present invention provides by concrete anode, reinforcing bar and
DC source forms cathodic protection system, concrete anode do anode, it is not necessary to extra auxiliary
Anode, simple in construction, and owing to concrete anode and concrete have the preferable compatibility,
During installation very convenient, area coverage is very big simultaneously, and such reinforcing bar can be protected comprehensively,
Making increase its service life, reinforcing bar is completely wrapped after being connected with DC source again, it is possible to reduce
The consumption of electric energy, thus reduce waste of energy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,
For a person skilled in the art, the present invention can have various modifications and variations.All at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, all should
Within being included in protection scope of the present invention.
Claims (10)
1. the method protecting xoncrete structure negative electrode, it is characterised in that the method bag
Include:
Step S100, wrap up a layer concrete anode on the surface of the armored concrete of entity；
Step S200, the positive pole of DC source is electrically connected with described concrete anode, by institute
The negative pole stating DC source electrically connects with the reinforcing bar in described armored concrete.
The method of protection xoncrete structure negative electrode the most according to claim 1, it is special
Levy and be,
In described step S100, described concrete anode includes that concrete substrate and carbon fiber are knitted
Thing net, first at one layer of carbon fibre fabric net of surface configuration of described armored concrete, then by institute
Stating concrete substrate, to be poured into described carbon fibre fabric online.
The method of protection xoncrete structure negative electrode the most according to claim 2, it is special
Levy and be, in described step S100: described carbon fibre fabric net is provided with multilamellar, adjacent
It is provided with described concrete substrate between described carbon fibre fabric net.
The method of protection xoncrete structure negative electrode the most according to claim 3, it is special
Levying and be, it is online that described concrete substrate uses the mode of injection to arrange carbon fibre fabric.
5. the device protecting xoncrete structure negative electrode, it is characterised in that include reinforcing bar,
Concrete, concrete anode and DC source, described concrete is cast on described reinforcing bar formation
The armored concrete of entity, described concrete anode is wrapped in described armored concrete, described steel
Muscle is connected with the negative electricity of described DC source, described concrete anode and described DC source
Positive electrical connects.
The device of protection xoncrete structure negative electrode the most according to claim 5, it is special
Levying and be, described concrete anode includes the concrete substrate using fine aggregate concrete to make.
The device of protection xoncrete structure negative electrode the most according to claim 6, it is special
Levying and be, described concrete anode also includes carbon fibre fabric net, described carbon fibre fabric net laying
It is located between described armored concrete and described concrete substrate.
The device of protection xoncrete structure negative electrode the most according to claim 7, it is special
Levying and be, described reinforcing bar includes many longitudinal reinforcements and Duo Gen stirrup, many described longitudinal reinforcements
Negative pole with described DC source is connected respectively, many described stirrups respectively with described DC source
Negative pole connect, many described longitudinal reinforcement being provided at circumferentially spaced along described stirrup, many institutes
State the stirrup length direction interval setting along described longitudinal reinforcement.
The device of protection xoncrete structure negative electrode the most according to claim 8, it is special
Levying and be, adjacent described longitudinal reinforcement is electrically connected by wire.
The device of protection xoncrete structure negative electrode the most according to claim 5, it is special
Levying and be, the device of described protection xoncrete structure negative electrode also includes control system, described control
System is connected between the negative pole of described DC source and described reinforcing bar.
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| CN201610635606.1A CN106011871A (en) | 2016-08-04 | 2016-08-04 | Method for protecting concrete structure cathode, and apparatus thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778821A (en) * | 2019-03-15 | 2019-05-21 | 傅程凯 | The construction method and maintenance process of reinforced concrete structure under marine environment |
| CN110408940A (en) * | 2019-09-12 | 2019-11-05 | 深圳大学 | CFRP- steel concrete combined member cathode protection device and preparation method thereof |
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| CN109778821B (en) * | 2019-03-15 | 2021-01-15 | 傅程凯 | Method for maintaining reinforced concrete structure in marine environment |
| CN110408940A (en) * | 2019-09-12 | 2019-11-05 | 深圳大学 | CFRP- steel concrete combined member cathode protection device and preparation method thereof |
| CN110408940B (en) * | 2019-09-12 | 2021-10-15 | 深圳大学 | CFRP-steel concrete combined member cathode protection device and preparation method thereof |
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