CN105624689A - Corrosion automatic detection and intelligent protection system - Google Patents
Corrosion automatic detection and intelligent protection system Download PDFInfo
- Publication number
- CN105624689A CN105624689A CN201610216925.9A CN201610216925A CN105624689A CN 105624689 A CN105624689 A CN 105624689A CN 201610216925 A CN201610216925 A CN 201610216925A CN 105624689 A CN105624689 A CN 105624689A
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- Prior art keywords
- corrosion
- protection
- sacrificial anode
- reinforcing bar
- concrete
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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
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
-
- 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
- C23F13/04—Controlling or regulating desired parameters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention provides a corrosion automatic detection and intelligent protection system, relating to concrete detection and protection. The corrosion automatic detection and intelligent protection system is simple in structure, does not need any external apparatus for monitoring and regulation, and can automatically judge the corrosion tendency quantity of the steel bar, so that the sacrificial anode can intelligently release a reasonable cathode current to protect the steel bar from being corroded. The system is provided with a sacrificial anode and a reinforced concrete structure, wherein the sacrificial anode is arranged in the reinforced concrete structure; and the sacrificial anode and the steel bar in the reinforced concrete structure are respectively connected through a wire outside the reinforced concrete structure or inside the reinforced concrete structure. The sacrificial anode can adopt magnesium, magnesium alloys or the like. The system is simple in structure, and can intelligently release the cathode current according to the corrosivity of the concrete or the corrosion tendency of the steel bar so as to protect the corroded steel bar. The system has the advantages of low detection and protection cost and favorable protection effects, does not have the defects of under-protection or over-protection, and has favorable practicality and economic benefits.
Description
Technical field
The present invention relates to concrete detection and protection, especially relate to a kind of corrosion detection and intelligent protection system automatically of reinforcement corrosion in concrete.
Background technology
Reinforcement corrosion in concrete, is also often often colloquially referred to as " cancer " of building, and initial stage extremely difficult discovery has been late period when discovering, it is possible to cause Infrastructure and great construction to be collapsed suddenly.
The reason of the reinforcement corrosion in concrete is caused to mainly contain the intrusion of chlorion and concrete carbonization. Tackling this kind of hazardness and corrode problem greatly, current various countries have developed various Steel Concrete aseptic technic. In many aseptic technics, galvanic protection is one of generally acknowledged tradition the most, reliable, effective means.
Cathode protection technology have sacrificial anode and impressed current point, though the former is than the latter's poor controllability, but more convenient save trouble. In actual applications, there is owing the phenomenon of protection and overprotection sometimes in galvanic protection, and this is two basic technique problems needing to be avoided. The former is because making reinforcing bar still be in etch state the protection of reinforcing bar deficiency; The excessive liberation of hydrogen of the latter Ze Yin may cause reinforcing bar hydrogen embrittlement fracture, alkali-aggregate reaction in concrete cracking, sacrificial anode premature failure etc. Overcome these shortcomings of galvanic protection, it is necessary to the level of protective current is carried out intelligentized control, provides appropriate protective current according to the size of corrosion tendency, avoid electric current too high or too low. But traditional impressed current cathodic protection technology, cannot because of corrosion condition automated intelligent protective current is regulated and controled to suitable level; And sacrificial anode just determines the size of its protective current when mounted, cannot arbitrarily adjust especially. Therefore, if the system that the manipulation of a set of external instrument without the need to complexity just can regulate and control cathodic protection current automated intelligent can successfully be researched and developed, will be a breakthrough in galvanic protection field.
Summary of the invention
It is an object of the invention to for the above-mentioned problems in the prior art, it is provided that structure is simple, without the need to external instrument monitoring and regulate, by the corrosion tendency size of automatic decision reinforcing bar thus a kind of corrosion detection and intelligent protection system automatically of not being corroded of sacrificial anode intelligence release rational cathodic current protection reinforcing bar.
The present invention is provided with sacrificial anode and skeleton construction, and described sacrificial anode is located in skeleton construction, by wire, the reinforcing bar in sacrificial anode and skeleton construction is connected to that skeleton construction is outer or in skeleton construction respectively.
Described sacrificial anode can adopt magnesium or magnesium alloy etc.
Be provided with sacrificial anode and skeleton construction due to the present invention, described sacrificial anode is located in skeleton construction, and sacrificial anode is connected with wire respectively with the reinforcing bar in skeleton construction. When wire was guided to when skeleton construction is outer, outside skeleton construction, just can measure current potential and their potential difference of reinforcing bar and sacrificial anode respectively; If when they are coupled at together, their Galvanic Current just can be measured. When magnesium or magnesium alloy are embedded in concrete as the sacrificial anode of reinforcing bar; in intact high alkalinity concrete (pH > > 12); reinforcing bar is then in passivity state and does not corrode; at this moment magnesium or magnesium alloy are also just in passive state; current potential calibration; reinforcing bar is not carried out strong galvanic protection, or the cathodic protection current provided is minimum, it is unlikely to reinforcing bar overprotection. After when concrete, because of carbonization, alkalescence reduces, reinforcing bar is just by activation corrosion, and magnesium or magnesium alloy are also activated accordingly with the decline of pH, and at this moment it just can provide enough electric currents reinforcing bar is carried out galvanic protection; When there being chlorion to enter concrete, magnesium or magnesium alloy are preferentially activated than reinforcing bar, and constantly increase along with the increase of chlorine ion concentration, so magnesium or magnesium alloy just provide the corrosion that sufficient cathodic protection current suppresses reinforcing bar. By select different magnesium alloy or MAGNESIUM METAL is carried out alloying can the activation pH of free adjustment sacrificial anode in Steel Concrete system and chlorine ion concentration, make sacrificial anode that the change of the concrete erosion in the skeleton construction in different system or environment and reinforcement corrosion tendency is had best response.
Use the cathode protecting process of sacrificial anode more easier than impressed current, more easily develop above-mentioned automated intelligent system on its basis. The present invention proposes a kind of automatic detection corrosion condition and the intelligent erosion prevention system of the suitable cathodic current of spontaneous release on this basis.
The invention has the beneficial effects as follows: system architecture is simple; can the corrosion tendency of detection system reinforcing bar automatically; and according to the corrosion tendency of concrete corrodibility or reinforcing bar; discharge cathodic current intelligently to be protected by corrosion reinforcing bar; detection and protection cost are low; and do not owe the shortcoming of protection and overprotection, protected effect is good, has good practicality and economic benefit.
Accompanying drawing explanation
Fig. 1 carries out current potential outside the magnesium of the present invention or magnesium alloy and reinforcing bar are wired to concrete and electric current measures structural representation.
To be the magnesium of the present invention or magnesium alloy with reinforcing bar be connected Fig. 2 with the direct coupling of wire carries out current potential and electric current measures structural representation.
Fig. 3 is the pH-Electric Potential Graph of iron.
Fig. 4 is the pH-Electric Potential Graph of magnesium.
Fig. 5 is that carbon steel and magnesium simulate the polarization curve in hole solution at concrete. Wherein hole solution pH=11.8, when simulation concrete carbonizing degree is not high.
Fig. 6 is that carbon steel and magnesium simulate the polarization curve in hole solution at concrete. Wherein hole solution pH=9.4, when simulation concrete carbonizing degree is higher.
Fig. 7 be magnesium when pH��11 polarization curve with solution in the change of NaCl concentration.
Embodiment
Following examples will the present invention is further illustrated by reference to the accompanying drawings.
See Fig. 1, the embodiment of the present invention is provided with sacrificial anode 1 and skeleton construction 2, and described sacrificial anode 1 is located in skeleton construction 2, and sacrificial anode 1 is connected to outside skeleton construction 2 by wire 4 with the reinforcing bar 3 in skeleton construction 2.
Described sacrificial anode 1 can adopt magnesium or magnesium alloy etc.
See Fig. 2, the embodiment of the present invention is provided with sacrificial anode 1 and skeleton construction 2, and described sacrificial anode 1 is located in skeleton construction 2, and sacrificial anode 1 is connected in skeleton construction 2 by wire 5 with the reinforcing bar 3 in skeleton construction 2.
Described sacrificial anode 1 can adopt magnesium or magnesium alloy etc.
Hereinafter provide specific embodiment:
Embodiment 1
MAGNESIUM METAL and reinforcing bar are immersed in the concrete pore solution of simulation, simulation magnesium and the reinforcing bar corrosive environment in concrete. When intact concrete high alkalinity (pH > > 12), reinforcing bar is then in passivity state and does not corrode (see Fig. 3), and its corrosion current is several �� A/cm only2(see Fig. 5). And at this moment magnesium is also just in passive state (see Fig. 4), current potential calibration, it is suitable from corrosion speed and reinforcing bar, the maximum protective current provided by reinforcing bar only 20 �� A/cm2(see Fig. 5), does not carry out strong galvanic protection to reinforcing bar, is unlikely to reinforcing bar overprotection. After when concrete, because of carbonization, alkalescence reduces, reinforcing bar is just by activation corrosion. When in concrete system, pH drops to below 11, reinforcing bar starts to lose passivity, activates (such as Fig. 3) gradually, and as pH=9.4, the corrosion current of reinforcing bar rises to 100 �� A/cm2Above (see Fig. 6). And MAGNESIUM METAL is also activated (such as Fig. 4) at about pH=11 just, as pH=9.4, magnesium is then in active state, and the cathodic protection current provided for reinforcement corrosion can up to 20,000 �� A/cm2Above, reinforcing bar is made to be in protection state (see Fig. 6).
Embodiment 2
MAGNESIUM METAL and reinforcing bar are immersed in the concrete pore solution of simulation, simulation magnesium and the reinforcing bar corrosive environment in concrete. In intact high alkalinity concrete, reinforcing bar is then in passivity state and does not corrode (see Fig. 3), and MAGNESIUM METAL is also in passivity, and reinforcing bar does not carry out strong galvanic protection (see Fig. 4). Invade when there being chlorion and when reaching threshold concentration, reinforcing bar will be corroded by activation, and in concrete high alkalinity environment, the concentration of criticality chlorine ion is at least 0.003mol/L. And MAGNESIUM METAL is more more responsive than reinforcing bar to chlorion, when chlorine ion concentration reaches 0.00055mol/L, corrosion current just reaches 100 �� A/cm2, and also constantly increase along with the increase of chlorine ion concentration, the cathodic protection current that can spontaneously provide sufficient suppresses the corrosion (see Fig. 7) of reinforcing bar.
The present invention utilize some electrode pair environmental corrosions responsive reaction and and to the effect between protected material, spontaneous measurement environment is corrosive while, according to material corrosion tendency in this context and corrosion speed, intelligently material is carried out suitable protection. Typical example be exactly in concrete reinforcement corrosion automatically detect and intelligent protection, it utilizes magnesium or the electrochemical behavior of its alloy uniqueness, by it to the responsive response of the invasion of chlorion in concrete and carbonic acid gas carbonization, automatically detect the corrosion tendency of concrete corrodibility and reinforcing bar; Utilize the corrosion tendency of reinforcing bar and concrete erosion to the excitation of magnesium or the reaction of its alloy anode simultaneously, magnesium or its alloy is made to provide suitable galvanic protection for reinforcing bar, reinforcing bar in concrete is not protected by strong negative electrode when not corroding, avoids overprotection; Just can be detected immediately when corroding and start, and according to the size of its corrosion tendency by suitably galvanic protection, avoid owing to protect. The present invention integrates corrosion measurement probe and erosion prevention system, it is possible to automatically detecting the corrodibility of reinforcing bar in concrete and reasonably protected by reinforcing bar intelligently, cost is low, and protection effect is obvious, has good practicality.
The corrodibility of the environment residing for the corrosion tendency of material or material can be responded by the present invention, provides the signal that can detect; Simultaneously according to signal, by the reaction of system self, suppress the corrosion of material. Described material, comprises and is not limited to a kind of metal engineering materials, such as steel, be characterized in the electronic conductor of engineering. Environment residing for described material, comprises and is not limited to a kind of electrolyte system, such as concrete, be characterized in having ionic conductivity. Described measuring and protection system; comprise and it is not limited to a kind of electrode; such as magnesium; it is characterized in described environment; can according to the corrosion tendency of described material or velocity magnitude or according to described environment to the corrodibility size of described material; there is different reactions, provide different signals, suppress the corrosion of described material simultaneously. Described difference reaction refers to the reaction of friction-motion speed or the reaction of different mechanism. The signal that described different signal refers to varying strength or the signal obtained by different methods measurement. Described suppression comprises and is not limited to galvanic protection effect, and the reaction of system can offset the corrosion tendency of described material, reduces its corrosion speed. Described suppression comprises and is not limited to corrosion inhibition, and the reaction product of system can reduce the corrosion speed of described material. The present invention can measure corrosion, can suppress again corrosion, be that body protect again by probe, integrates detection and protection function, according to corrosiveness of the environment and material corrosion tendency, spontaneous can provide signal; Can also be inclined to according to the corrosiveness of the environment recorded and material corrosion simultaneously, intelligently material is carried out the suppression of proper level. Described automatic measurement is with, in intelligence protect system, the signal of material and the signal of measuring and protecting system, by including but not limited to that wire carries out measuring, compares, processes. Utilize this system to the responsive reaction of concrete erosion, judge reinforcement corrosion tendency and speed, and according to the size of concrete erosion and the tendency of reinforcement corrosion and speed, automatic opening protection function measure, suppresses reinforcement corrosion in concrete. To concrete erosion, the particularly Cl in concrete-Concentration and pH value or concrete defect (such as cracking) etc. have very high electrochemistry susceptibility, as Cl in concrete-Concentration raises or reduces or concrete cracking with pH value, and when the corrodibility of reinforcing bar is increased by concrete, some electrochemical parameters of this system, such as current potential etc., can change, the generation of indication reinforcement corrosion. Simultaneously galvanic effect with reinforcing bar is strengthened, and is that reinforcing bar provides cathodic protection current, suppresses the corrosion of reinforcing bar. It is the probe of detection reinforcement corrosion, it is again the sacrificial anode of protection reinforcing bar, integrate detection and protection function. Its probe and sacrificial anode carry out electrochemical signals measurement with reinforcing bar by wire, compare, process, and forecast concrete corrodibility or monitoring and protection effect; Also can direct mutual short circuit in concrete, make sacrificial anode need directly to provide when protecting suitable protection at reinforcing bar, it is not necessary to forecast the corrosion of concrete corrodibility or reinforcing bar.
Claims (2)
1. corrosion detection and an intelligent protection system automatically, it is characterized in that being provided with sacrificial anode and skeleton construction, described sacrificial anode is located in skeleton construction, by wire, the reinforcing bar in sacrificial anode and skeleton construction is connected to that skeleton construction is outer or in skeleton construction.
2. a kind of corrosion detects and intelligent protection system automatically as claimed in claim 1, it is characterised in that described sacrificial anode adopts magnesium or magnesium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216925.9A CN105624689A (en) | 2016-04-08 | 2016-04-08 | Corrosion automatic detection and intelligent protection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610216925.9A CN105624689A (en) | 2016-04-08 | 2016-04-08 | Corrosion automatic detection and intelligent protection system |
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| CN105624689A true CN105624689A (en) | 2016-06-01 |
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| CN201610216925.9A Pending CN105624689A (en) | 2016-04-08 | 2016-04-08 | Corrosion automatic detection and intelligent protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817934A (en) * | 2021-09-15 | 2021-12-21 | 厦门大学 | Zinc-magnesium alloy intelligent sacrificial anode material and application thereof |
| CN113832468A (en) * | 2021-09-15 | 2021-12-24 | 厦门大学 | Application of AZ91 magnesium alloy part in detecting reinforced concrete carbonization and providing cathodic protection for reinforcing steel bars |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010146388A1 (en) * | 2009-06-15 | 2010-12-23 | Gareth Glass | Corrosion protection of steel in concrete |
| CN102418101A (en) * | 2011-11-29 | 2012-04-18 | 青岛双瑞海洋环境工程有限公司 | Composite type sacrificial anode for repairing reinforced concrete structures |
| CN102618875A (en) * | 2005-03-16 | 2012-08-01 | 格瑞斯·格拉斯 | Treatment process for concrete |
| CN104508187A (en) * | 2012-07-30 | 2015-04-08 | 建筑研究和技术有限公司 | Galvanic anode and method of corrosion protection |
| CN104508188A (en) * | 2012-07-30 | 2015-04-08 | 建筑研究和技术有限公司 | Galvanic anode and method of corrosion protection |
-
2016
- 2016-04-08 CN CN201610216925.9A patent/CN105624689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618875A (en) * | 2005-03-16 | 2012-08-01 | 格瑞斯·格拉斯 | Treatment process for concrete |
| WO2010146388A1 (en) * | 2009-06-15 | 2010-12-23 | Gareth Glass | Corrosion protection of steel in concrete |
| CN102418101A (en) * | 2011-11-29 | 2012-04-18 | 青岛双瑞海洋环境工程有限公司 | Composite type sacrificial anode for repairing reinforced concrete structures |
| CN104508187A (en) * | 2012-07-30 | 2015-04-08 | 建筑研究和技术有限公司 | Galvanic anode and method of corrosion protection |
| CN104508188A (en) * | 2012-07-30 | 2015-04-08 | 建筑研究和技术有限公司 | Galvanic anode and method of corrosion protection |
Non-Patent Citations (1)
| Title |
|---|
| 宋世昌等编著: "《天然气地面工程设计 下》", 31 May 2014, 中国石化出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817934A (en) * | 2021-09-15 | 2021-12-21 | 厦门大学 | Zinc-magnesium alloy intelligent sacrificial anode material and application thereof |
| CN113832468A (en) * | 2021-09-15 | 2021-12-24 | 厦门大学 | Application of AZ91 magnesium alloy part in detecting reinforced concrete carbonization and providing cathodic protection for reinforcing steel bars |
| WO2023040239A1 (en) * | 2021-09-15 | 2023-03-23 | 厦门大学 | Zinc-magnesium alloy intelligent sacrificial anode material and use thereof |
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