CN203745415U - Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete - Google Patents
Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete Download PDFInfo
- Publication number
- CN203745415U CN203745415U CN201420108700.8U CN201420108700U CN203745415U CN 203745415 U CN203745415 U CN 203745415U CN 201420108700 U CN201420108700 U CN 201420108700U CN 203745415 U CN203745415 U CN 203745415U
- Authority
- CN
- China
- Prior art keywords
- electrode
- electrode body
- reference electrode
- reinforced concrete
- sealing bore
- 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
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a composite embedded reference electrode for monitoring/detecting the corrosion of reinforced concrete. The composite embedded reference electrode comprises an electrode sealed cylinder, an electrode body, an inner reference electrolyte, an electric cable and a porous ceramic envelope, wherein the electrode body comprises a precious metal electrode body and an MnO2 reference electrode body which are parallel to the axis of the electrode sealed cylinder; the other end of the electric cable is connected with the precious metal electrode body and the MnO2 reference electrode body respectively. On one hand, the porous ceramic envelope is mounted at the bottom of the electrode sealed cylinder, so that the liquid junction potential between the electrode sealed cylinder and a concrete medium is reduced, and the composite embedded reference electrode is suitable for being embedded and applied to a concrete alkaline medium; on the other hand, the precious metal electrode body and the MnO2 reference electrode body which are parallel to the axis of the electrode sealed cylinder are arranged in the electrode sealed cylinder, so that stable measurement of the electrode potential of a system is ensured, the chemical stability and the high conductivity of the precious metal electrode body are fully utilized, and the real long life and the measurement sensitivity of the composite embedded reference electrode are guaranteed.
Description
Technical field
The utility model belongs to reinforced concrete structure erosion and guard technology field, is specifically related to the compound embedment type reference electrode for inspecting of a kind of steel reinforced concrete erosion monitoring/detection.
Background technology
The contrast electrode that is applied in concrete field mainly contains silver/silver chloride contrast electrode, manganese dioxide reference electrode and copper sulfate reference electrode.Copper sulfate reference electrode uses usually used as portable type measuring, because the electrode of this metal/metal salt solusion class needs enough moisture to ensure metal salt solution (, reference is electrolytical stable); And the diaphragm material of electrode should be controlled copper sulphate to electrode external penetration, ensure to control again the migration of moisture, cause kind electrode can not exceed 10 years the designed life in concrete.
Using at commercial field is at present more successfully metal/metal indissoluble salt contrast electrode, such as silver/silver chloride contrast electrode, manganese dioxide reference electrode and Mo/MoO
3electrode.The patent No. is that 200710016441.0 Chinese invention patent relates to a kind of manganese dioxide reference electrode being applied in concrete, and agent structure comprises sealant tape, concrete semi-permeable diaphragm, alkaline-resisting tissue paper, manganese ring, collector steel cylinder and wire.The benefit of this class electrode is that metal/metal difficulty soluble salt is more stable electrode pair, does not need too many moisture to participate in forming electrode pair, therefore only needs a small amount of moisture to ensure that the stability of electrochemical measurement, interior reference electrolyte makes pasty state; In order to ensure the stability of long-term electrochemical measurement, avoid moisture dry, in alkalescence, in reference electrolyte, can also add water absorbing agent.But this class electrode is in actual fabrication process, and metal difficulty soluble salt easily produces multiple valence state and crystal formation, and the electrode potential reappearance that causes different batches to be prepared is not too high, needs strict checking procedure before use.The patent No. is that 200710144314.9 Chinese invention patent discloses a kind of Rust of Rebar in Concrete all-solid reference electrode for monitoring and preparation method thereof, this contrast electrode adopts Ag/AgCl/KClsat system, is outwards followed successively by purity and is 99.99% Ag, AgCl layer, three component porous layers and grout layer form from the axle center of contrast electrode.This invention takes into full account that Rust of Rebar in Concrete monitors the singularity such as required contrast electrode long-life, current potential be stable, adopt cheap Ag/AgCl/KClsat system to prepare a kind of novel all solid state long service life reference electrode (ASSRE), adopt three component porous structures to overcome the shortcoming that the ordinary liquid contrast electrode life-span is short, intensity is low.But in the full phase in longevity of the concrete in oceanographic engineering chlorine ion concentration conventionally change larger, therefore due to the change very earth effect of chlorine ion concentration the stability of Ag/AgCl electrode potential.
Summary of the invention
The utility model object is to provide steel reinforced concrete erosion monitoring/detection that a kind of life-span is long, stability is high compound embedment type reference electrode for inspecting in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of steel reinforced concrete erosion monitoring/detect and use compound embedment type reference electrode for inspecting, interior reference electrolyte, one end that it comprises electrode sealing bore, be located at electrode body in electrode sealing bore, be contained in electrode sealing bore and be wrapped in described electrode body periphery pass electrode sealing bore to outside cable, be installed on the porous ceramics capsule of electrode sealing bore bottom, described electrode body comprises the noble metal electrode body and the MnO that parallel with electrode sealing bore axial line
2contrast electrode body, the described cable other end respectively with described noble metal electrode body and MnO
2contrast electrode body is connected.
Optimally, described electrode sealing bore and porous ceramics capsule are made integral structure admittedly.
Optimally, described cable is two, and wherein one is connected with noble metal electrode body, another root and MnO
2contrast electrode body connects.
Optimally, the composition material of described noble metal electrode body is platinum, gold, palladium or molybdenum
Optimally, described interior reference electrolyte comprises alkaline electrolyte solution and methylcellulose.
Further, by weight percentage, described alkaline electrolyte solution content is 10 ~ 30%, and described methylcellulose content is 70 ~ 90%.
Optimally, the porosity of described porous ceramics capsule is 10 ~ 30%, and aperture is 0.5 ~ 3 micron, and compressive strength is greater than 40MPa.
Because technique scheme is used, the utility model compared with prior art has following advantages: the utility model steel reinforced concrete erosion monitoring/detect and use compound embedment type reference electrode for inspecting, in electrode sealing bore bottom, porous ceramics capsule is installed on the one hand, reduce the liquid junction potential between concrete medium, be adapted at embedding application in concrete alkalescence medium; The noble metal electrode body and the MnO that parallel with electrode sealing bore axial line are set on the other hand in electrode sealing bore
2contrast electrode body, had both made full use of MnO
2contrast electrode body is electrochemical stability under high alkalinity environment, guarantee the measurement that system electrode potential is stable, take full advantage of again chemical stability and the high conductivity of noble metal electrode body, the real long-acting of its life-span and the sensitivity of measuring are ensured, a preparation and a use, meeting designed life is the phase in Concrete Design longevity.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of compound embedment type reference electrode for inspecting for the monitoring/detection of the utility model steel reinforced concrete erosion;
Wherein: 1, electrode sealing bore; 2, electrode body; 21, noble metal electrode body; 22, MnO
2contrast electrode body; 3, interior reference electrolyte; 4, cable; 5, porous ceramics capsule.
Embodiment
Below in conjunction with embodiment shown in the drawings, the utility model is further described.
Compound embedment type reference electrode for inspecting is used in steel reinforced concrete erosion monitoring/detection as shown in Figure 1, comprises electrode sealing bore 1, electrode body 2, interior reference electrolyte 3, cable 4 and porous ceramics capsule 5.
Wherein, in electrode sealing bore 1, be provided with electrode body 2, and fill the interior reference electrolyte 3 that infiltrates electrode body 2 surfaces; Electrode body 2 comprises noble metal electrode body 21 and MnO
2contrast electrode body 22, they parallel with the axial line of electrode sealing bore 1; One end of cable 4 passes electrode sealing bore 1 to outside, the other end respectively with noble metal electrode body 21 and MnO
2contrast electrode body 22 is connected; Porous ceramics capsule 5 is arranged on the bottom of electrode sealing bore 1.Because electrode sealing bore 1 bottom is provided with porous ceramics capsule 5, reduce the liquid junction potential between compound embedment type reference electrode for inspecting and concrete medium, be adapted at embedding application in concrete alkalescence medium; And noble metal electrode body 21 and MnO be set in electrode sealing bore
2contrast electrode body 22, had both made full use of MnO
2contrast electrode body is electrochemical stability under high alkalinity environment, guarantee the measurement that system electrode potential is stable, take full advantage of again chemical stability and the high conductivity of noble metal electrode body, the real long-acting of its life-span and the sensitivity of measuring are ensured, a preparation and a use, meeting designed life is the phase in Concrete Design longevity.
In the present embodiment, electrode sealing bore 1 is made integral structure admittedly with porous ceramics capsule 5, is easily installed in reinforced concrete; Cable is two, and wherein one is connected with noble metal electrode body 21, another root and MnO
2contrast electrode body 22 connects, and conveniently selects; Noble metal electrode body 21 should select inert metal material to make, and for example platinum, gold, palladium or molybdenum, guarantee its serviceable life.Interior reference electrolyte 3 comprises alkaline electrolyte solution and absorbent polymer material, and in the pasty state, its content is 10 ~ 30 wt%(percentage by weights to alkaline electrolyte solution); Absorbent polymer material is 70 ~ 90 wt%(percentage by weights).Absorbent polymer material can adopt common methylcellulose, polyalcohols etc., thereby ensures the stability of electrode material in surrounding medium.The porosity of porous ceramics capsule 5 is 10 ~ 30%, and aperture is 0.5 ~ 3 micron, and compressive strength is greater than 40MPa, when compound embedment type reference electrode for inspecting is embedding and mixed earth in time, can stablize the liquid junction potential between concrete medium.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. the compound embedment type reference electrode for inspecting of steel reinforced concrete erosion monitoring/detection, it comprises electrode sealing bore (1), be located at the electrode body (2) in electrode sealing bore (1), be contained in electrode sealing bore (1) and be wrapped in the peripheral interior reference electrolyte (3) of described electrode body (2), one end passes electrode sealing bore (1) to outside cable (4), be installed on the porous ceramics capsule (5) of electrode sealing bore (1) bottom, it is characterized in that: described electrode body (2) comprises the noble metal electrode body (21) and the MnO that parallel with electrode sealing bore (1) axial line
2contrast electrode body (22), described cable (4) other end respectively with described noble metal electrode body (21) and MnO
2contrast electrode body (22) is connected.
2. steel reinforced concrete erosion monitoring according to claim 1/detect and use compound embedment type reference electrode for inspecting, is characterized in that: described electrode sealing bore (1) is made integral structure admittedly with porous ceramics capsule (5).
3. steel reinforced concrete erosion monitoring according to claim 1/detect and use compound embedment type reference electrode for inspecting, is characterized in that: described cable (4) is two, wherein one is connected with noble metal electrode body (21), another root and MnO
2contrast electrode body (22) connects.
4. steel reinforced concrete erosion monitoring according to claim 1/detect and use compound embedment type reference electrode for inspecting, is characterized in that: the composition material of described noble metal electrode body (21) is platinum, gold, palladium or molybdenum.
5. steel reinforced concrete erosion monitoring according to claim 1/detect and use compound embedment type reference electrode for inspecting, is characterized in that: the porosity of described porous ceramics capsule (5) is 10 ~ 30%, and aperture is 0.5 ~ 3 micron, and compressive strength is greater than 40MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108700.8U CN203745415U (en) | 2014-03-11 | 2014-03-11 | Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108700.8U CN203745415U (en) | 2014-03-11 | 2014-03-11 | Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745415U true CN203745415U (en) | 2014-07-30 |
Family
ID=51345200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420108700.8U Expired - Fee Related CN203745415U (en) | 2014-03-11 | 2014-03-11 | Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822950A (en) * | 2014-03-11 | 2014-05-28 | 苏州热工研究院有限公司 | Embedded type composite reference electrode for corrosion monitoring/detecting of reinforced concrete |
-
2014
- 2014-03-11 CN CN201420108700.8U patent/CN203745415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822950A (en) * | 2014-03-11 | 2014-05-28 | 苏州热工研究院有限公司 | Embedded type composite reference electrode for corrosion monitoring/detecting of reinforced concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202939152U (en) | Long-service-life embedded reference electrode for monitoring/detecting corrosion of reinforced concrete | |
| CN103822950B (en) | Steel reinforced concrete erosion monitoring/detect and use compound embedment type reference electrode for inspecting | |
| CN101726525B (en) | Embedded-type sensor for detecting concrete chloride ion content and preparation method thereof | |
| CN101144790B (en) | All-solid reference electrode for monitoring steel bar corrosion of concrete and its preparation method | |
| CN101144769B (en) | Five electrode steel bar corrosion monitoring sensor and its preparation method | |
| CN103776880A (en) | Solid reference electrode taking titanium wire as base material and preparation method thereof | |
| CN102401781A (en) | Reference electrode for reinforced concrete and manufacturing method of reference electrode | |
| NO20091876L (en) | Thin solid oxide cell | |
| JP5941022B2 (en) | Reference electrode | |
| CN203745415U (en) | Composite embedded reference electrode for monitoring/detecting corrosion of reinforced concrete | |
| CN104965013B (en) | A kind of self compensation, anti-pollution reference electrode | |
| CN101226164B (en) | Embedment type reference electrode for inspecting/detecting steel reinforced concrete erosion | |
| CN101718677B (en) | Electrochemically deposited manganese dioxide reference electrode and preparation method thereof | |
| CN105806773B (en) | High temperature villiaumite reference electrode and its manufacturing method | |
| JP5572201B2 (en) | Reference electrode | |
| RU78319U1 (en) | ELECTRODE COMPARISON | |
| CN100526509C (en) | Manganese dioxide reference electrode | |
| CN109342520B (en) | A kind of all-solid-state pH combination electrode device and preparation method thereof | |
| RU88355U1 (en) | COPPER-SULPHATE COMPARISON ELECTRODE NON-POLARIZING | |
| CN212060031U (en) | Composite metal component embedded type long-acting reference electrode for concrete reinforcing steel bar | |
| CN215251192U (en) | Reference electrode | |
| CN204241414U (en) | A kind of Novel silver silver chloride reference system | |
| CN203299165U (en) | Reference electrode for blood gas electrolyte analyzer | |
| CN100397710C (en) | Copper/saturated copper sulphate gel reference electrode | |
| CN211478144U (en) | Manganese dioxide embedded type long-acting reference electrode for concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20190311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |