CN206486602U - A kind of cathodic protection structure of cored slab - Google Patents
A kind of cathodic protection structure of cored slab Download PDFInfo
- Publication number
- CN206486602U CN206486602U CN201720206827.7U CN201720206827U CN206486602U CN 206486602 U CN206486602 U CN 206486602U CN 201720206827 U CN201720206827 U CN 201720206827U CN 206486602 U CN206486602 U CN 206486602U
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- CN
- China
- Prior art keywords
- cored slab
- reference electrode
- reinforcing bar
- activated carbon
- carbon fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of cathodic protection structure of cored slab, belong to bridge structure technical field.The utility model is mainly made up of cored slab, activated carbon fiber cloth, reference electrode and potentiostat.Wherein potentiostat is made up of power supply, null electrode binding post, positive terminal, negative terminal, reference electrode binding post.Reference electrode sets insulation, and it is arranged on cored slab one end, is not contacted with reinforcing bar.In the structure, each bar parallel in cored slab is got up with wire, the negative pole of one end of reinforcing bar and power supply is connected, the other end is connected with the conductive layer on activated carbon fiber cloth, the conductive layer of the other end of activated carbon fiber cloth and the positive pole of power supply are connected.Reference electrode is connected on reference electrode binding post.The utility model uses the reinforcing bar in impressed current cathodic protection technical protection cored slab, it is to avoid the oxide etch of reinforcing bar.The utility model can provide long-term and effective anti-corrosion protection for the reinforcing bar in cored slab, so that the security and durability of cored slab are significantly improved.
Description
Technical field
The utility model is related to a kind of cathodic protection structure of cored slab, belongs to bridge structure technical field.
Background technology
Because cored slab has the advantages that from heavy and light, span is big, manufacture craft is ripe, low cost, easy for installation, cored slab
It is widely used in bridge construction project.But it is due to the property worked with crackle of armored concrete in itself, with
And the effect in dead load and mobile load, defective construction technology, concrete shrinkage, ambient temperature such as change at the unfavorable factor
Under effect so that crack progressing aggravates.Moisture and salinity in outside air will be in the cracks of easier entrance cored slab
Portion, is contacted with the reinforcing bar of the inside, causes iron ion and the oxygen and moisture of intrusion in the destruction of rebar surface oxide-film, reinforcing bar
Generation corrosion is reacted, and reinforcing bar is produced corrosion failure.Especially in coastal area, air humidity and salt content are larger, steel bar corrosion
It is even more serious, the serious curtailment service life of cored slab.And some existing anticorrosive measures, for example, to concrete surface
Handled, increase thickness of concrete cover, improve concrete performance, in measures such as rebar surface increase anticorrosive coats, can
Slow down the extent of corrosion of reinforcing bar to a certain extent, but these measures can not all form permanently effective protection to reinforcing bar.
The content of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art and problem, and there is provided one kind is hollow
The cathodic protection structure of plate.The utility model mainly includes cored slab, activated carbon fiber cloth, reference electrode and potentiostat；It is living
Property carbon cloth include tack coat and conductive layer；Reference electrode sets insulation, and it is arranged on cored slab one end, is not connect with reinforcing bar
Touch；Each bar parallel in cored slab is got up with wire, the negative pole of the power supply in one end and potentiostat of reinforcing bar is connected,
The other end is connected with the conductive layer on activated carbon fiber cloth, in the conductive layer and potentiostat of the other end of activated carbon fiber cloth
The positive pole connection of power supply, reference electrode is connected on the reference electrode binding post in potentiostat.In the structure, in cored slab
Reinforcing bar is connected with the negative pole of potentiostat, is used as protected negative electrode.Power supply, carbon cloth conductive layer, steel in potentiostat
Muscle connects to form closed-loop path by wire, and as impressed current anode electrochemical reaction occurs for the conductive layer on activated carbon fiber cloth,
Electronics is produced, electronics flows to reinforcing bar, the galvanic circle makes reinforcing bar produce cathodic polarization under the energy of position effect of additional power source,
The suppression to steel bar corrosion in cored slab is enhanced, influence of the corrosion to cored slab service life is eliminated.
The conductive layer of activated carbon fiber cloth in the utility model has that electrochemicaUy inert, anode polarization rate be low, loss is few.
The utility model can improve steel bar anti-corrosion ability in cored slab, add while carbon cloth can also be played to cored slab
Solid effect, greatly improve the service life of cored slab, cost is relatively low, easy to install.
Brief description of the drawings
Fig. 1 structural representations of the present utility model.
The cross sectional view of structure in Fig. 2 Fig. 1.
Identified in figure：1- cored slabs, 2- tack coats, 3- conductive layers, 4- reinforcing bars, 5- positive terminals, 6- reference electrodes connect
Terminal, 7- null electrode binding posts, 8- power supplys, 9- negative terminals, 10- reference electrodes, 11- activated carbon fiber cloths, the permanent electricity of 12-
Position instrument, 13- pave-load layers, 14- surface layers.
Embodiment
The technical solution of the utility model is retouched the following is specific embodiment of the utility model, and with reference to accompanying drawing
State, but the utility model is not limited to these embodiments.
Embodiment one
The corresponding schematic diagram of the embodiment is shown in Fig. 1 and Fig. 2.The utility model discloses a kind of cathodic protection of cored slab
Structure, including：Cored slab 1, activated carbon fiber cloth 11, reference electrode 10 and potentiostat 12；The top of cored slab 1, which has been poured, mats formation
There is the surface layer 14 of road layer 13, the top of pave-load layer 13.Activated carbon fiber cloth 11 includes tack coat 2 and conductive layer 3；Reference electrode 10
Insulation is set, and it is arranged on the end of cored slab 1, is not contacted with reinforcing bar 4；Each parallel connection of reinforcing bar 4 in cored slab 1 is risen with wire
Come, one end of reinforcing bar 4 is connected with the negative terminal 9 of the power supply 8 in potentiostat 12, the other end and activated carbon fiber cloth 11
On conductive layer 3 connect, the positive pole of the conductive layer 3 of the other end of activated carbon fiber cloth 11 and the power supply 8 in potentiostat 12 connects
Terminal 5 is connected, and reference electrode 10 is connected on the reference electrode binding post 6 in potentiostat 12.Null electrode is connect with wire
Terminal 7 is connected with the earth.The purpose of described reference electrode 10 is monitored and controlled by the protection potential of protection reinforcing bar 4, steel
The electric potential signal of muscle 4 is fed to potentiostat 12, automatically to adjust the output current of the power supply 8 in potentiostat 12, from
And reach regulation to the purpose of defined protective potential range.Reference electrode 10 should have that the small, stability that polarizes is good, not rapid wear
The characteristics such as bad, service life length, good insulating.
Claims (1)
1. a kind of cathodic protection structure of cored slab, the resistance to corrosion to strengthen reinforcing bar in cored slab, it is characterised in that：Bag
Include cored slab, activated carbon fiber cloth, reference electrode and potentiostat；Activated carbon fiber cloth includes tack coat and conductive layer；Reference
Electrode sets insulation, and it is arranged on cored slab one end, is not contacted with reinforcing bar；Each bar parallel in cored slab is risen with wire
Come, the negative pole of the power supply in one end and potentiostat of reinforcing bar is connected, the other end connects with the conductive layer on activated carbon fiber cloth
Connect, the positive pole connection of the power supply in the conductive layer and potentiostat of the other end of activated carbon fiber cloth, reference electrode is connected to perseverance
On reference electrode binding post in potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720206827.7U CN206486602U (en) | 2017-03-06 | 2017-03-06 | A kind of cathodic protection structure of cored slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720206827.7U CN206486602U (en) | 2017-03-06 | 2017-03-06 | A kind of cathodic protection structure of cored slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206486602U true CN206486602U (en) | 2017-09-12 |
Family
ID=59763414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720206827.7U Expired - Fee Related CN206486602U (en) | 2017-03-06 | 2017-03-06 | A kind of cathodic protection structure of cored slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206486602U (en) |
-
2017
- 2017-03-06 CN CN201720206827.7U patent/CN206486602U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20180306 |