CN106757058A - A kind of armored concrete anti-corrosion sacrificial anode - Google Patents
A kind of armored concrete anti-corrosion sacrificial anode Download PDFInfo
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- CN106757058A CN106757058A CN201611206220.5A CN201611206220A CN106757058A CN 106757058 A CN106757058 A CN 106757058A CN 201611206220 A CN201611206220 A CN 201611206220A CN 106757058 A CN106757058 A CN 106757058A
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- sacrificial anode
- kernel
- corrosion
- armored concrete
- concrete anti
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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
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/16—Electrodes characterised by the combination of the structure and the material
-
- 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
- C23F2201/00—Type of materials to be protected by cathodic protection
- C23F2201/02—Concrete, e.g. reinforced
Abstract
The present invention relates to a kind of armored concrete anti-corrosion sacrificial anode, including sacrificial anode kernel, the plain conductor of sacrificial anode kernel is fed through, is coated on the bag pulp layer outside sacrificial anode kernel, sacrificial anode kernel is kirsite block, the raw material containing following components and percentage by weight：Al 0.30~0.55, Cd 0.07~0.09, impurity element are Fe, Cu, Pb≤0.02；Remaining is Zn.Compared with prior art, the present invention have the advantages that long service life, have a wide range of application, application performance stably.
Description
Technical field
The invention belongs to antiseptic concrete field, more particularly, to a kind of armored concrete anti-corrosion sacrificial anode.
Background technology
Steel bar corrosion is the one of the main reasons that armored concrete occurs disease, and the corrosion of concrete reinforcement is electrochemistry mistake
Journey, because concrete is loose structure, the bar list that water, oxygen, carbon dioxide of air etc. are entered in concrete by hole
There is electrochemical reaction and corrosion in face, reinforcing bar.Especially, after having chlorion to immerse concrete in environment, reinforcing bar is accelerated
Corrosion.Bulk product expands 4-8 times after steel bar corrosion, and concrete structure bears excessive tension and cracks, and crackle is formed
Afterwards, the corrosion of reinforcing bar accelerates, and causes concrete to deteriorate, produce crack, come off, the disease such as chip off-falling.
Sacrificial anode protection belongs to cathodic protection category, and anode loss protection principle is using a kind of more active metal and quilt
The metal of protection is connected to form electrical communication, and two kinds of metals occur electrochemical reaction in the electrolyte, and active metal loses
Electronics, and protected metal to electronics is protected.Sacrificial anode protection is widely used in pipe as the anti-corrosion of metal by people
The fields such as road, storage tank, ocean structure, and the anti-corrosion research for being applied to reinforced concrete structure is less.
Chinese patent CN201292406 is disclosed including sacrificial zinc alloy anode, the cylindrical male of sacrificial zinc alloy anode
Polar body is cast in cylindrical anode bag, and the symmetrical steel core of sacrificial zinc alloy anode is outside anode bag.But,
The risk that sodium sulphate has corrosion reinforcing bar is added in the patent.
The content of the invention
The purpose of the present invention is exactly a kind of long service life to be provided for the defect for overcoming above-mentioned prior art to exist, is answered
With the wide armored concrete anti-corrosion sacrificial anode of scope.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of armored concrete anti-corrosion sacrificial anode, including：
Sacrificial anode kernel,
The plain conductor of sacrificial anode kernel is fed through,
It is coated on the bag pulp layer outside sacrificial anode kernel.
Described sacrificial anode kernel is kirsite block, the raw material containing following components and percentage by weight：Al 0.30~
0.55th, Cd 0.07~0.09, impurity element is Fe, Cu, Pb≤0.02；Remaining is Zn.
Described sacrificial anode kernel is cylindrical-shaped structure, and radius is 4-8mm, is highly 60-100mm, and weight is 50-
200g, plain conductor is passed from the two ends of sacrificial anode kernel, and the length of the part exposed is 100-300mm.
Described sacrificial anode kernel is rectangular structure, and the 5-20 pick of small rectangular-shape is also distributed with both sides,
The length of cuboid is 60-100mm, and width is 20-35mm, is highly 6-15mm, and the length of pick is 4-10mm, and width is 2-
5mm, is highly 6-15mm, and the distance between adjacent pick is 2-5mm, and the weight of sacrificial anode kernel is 100-300g, metal
Wire is passed from the two ends of sacrificial anode kernel, and the length of the part exposed is 100-300mm.
Described sacrificial anode kernel is the thin column of the individual radially even arrangements of 5-30 and is connected to each thin cylinder
Transition small cylinder structure between body, the radius of described thin column is 10-30mm, and thickness is 2-5mm, adjacent thin column
The distance between be 2-5mm, the weight of sacrificial anode kernel is 50-200g, and plain conductor is worn from the two ends of sacrificial anode kernel
Go out, the length of the part exposed is 100-300mm.
Described sacrificial anode kernel is the structure that 3-8 blade is distributed on plain conductor outer surface, and the length of blade is
5-15mm, width is 2-8mm, and the weight of sacrificial anode kernel is 80-200g, and plain conductor is worn from one end of sacrificial anode kernel
Go out, the length of the part exposed is 30-80mm.
Described plain conductor is double joint non-coating steel silk that is single or being parallel to each other, a diameter of 1-3mm.
The end structure annular in shape of described plain conductor.
The thickness of the bag pulp layer of described sacrificial anode kernel periphery parcel is not less than 8mm.
Described bag pulp layer is mixed with using following components and raw material and obtained：Quartz sand 150-220, silicate
Cement 80-120, water reducer 2-5, bentonite 15-25, are also added with active additive, and addition is the 0.1- of cumulative volume
0.2%,
The particle diameter of described quartz sand is 1-2mm,
Described portland cement is 42.5# portland cements,
Described water reducer is wooden calcium sulfonate,
Described bentonite sodium base bentonite,
Described active additive is a kind of strong base substance, to reinforcing bar non-corrosiveness in itself, including but not limited to NaOH,
KOH、Ca(OH)2, LiOH or Ba (OH)2。
Active additive is to reinforcing bar non-corrosiveness in itself.Sacrificial anode outsourcing mortar keeps the thing of zinc nuclear activity because adding
Matter makes mortar in high alkalinity PH more than 14, and the loose active material that will not prevent mortar of corrosion product on zinc core surface is diffused into zinc
Core surface, so that zinc core is chronically at activated state, it is ensured that the stable performance of sacrificial anode.
Compared with prior art, the present invention has advantages below：
(1) outer surface parcel suitable thickness (being more than 8mm), the mortar of some strength of sacrificial anode kernel, it is ensured that sacrifice
Anode parcel mortar is not allowed easily rupturable；
(2) mortar also has the product after enough porosity absorption anodic attack expansions, by adding suitable water reducer
The ratio of mud 0.4~0.6 of amount regulation mortar；
(3) material that mortar with the addition of holding zinc nuclear activity is strong base substance, and sacrificial anode outsourcing mortar is because adding guarantor
Holding the material of zinc nuclear activity makes mortar in high alkalinity PH more than 14, and the corrosion product on zinc core surface is loose will not to prevent the work of mortar
Property material is diffused into zinc core surface, so that zinc core is chronically at activated state, it is ensured that the stable performance of sacrificial anode；
(4) mortar without sulfate or chloride, bromide and other cause the composition of steel bar corrosion, using alkaline activity
Mode activate kirsite.This can be avoided because the composition of steel bar corrosion can be caused to be diffused into concrete reinforcement surface in mortar,
And reinforcing bar is in corrosive environment, and accelerate the corrosion of sacrificial anode, shorten the life-span of sacrificial anode, while sacrificial anode loses work
With rear, will not be because quickly there is corrosion in reinforcing bar in corrosive environment；
(5) without external power source or system detectio；
(6) long service life (being more than 10 years), following maintenance requirements are reduced；
(7) can be used for the preventive maintenance or control corrosion rate of newly-built, built concrete reinforcement；
(8) wire and sacrificial anode kernel one are cast, it is ensured that sacrificial anode kernel and the long-term connection of wire, are improved
The utilization rate of sacrificial anode kernel；
(9) convenience quick for installation, and by devising several sacrificial anodes of different shapes, can be a variety of
Occasion is used, and has widened the application of sacrificial anode
Brief description of the drawings
Fig. 1 is the structural representation of sacrificial anode kernel in embodiment 1；
Fig. 2 is structural representation of the invention in embodiment 1；
Fig. 3 is the structural representation of sacrificial anode kernel in embodiment 2；
Fig. 4 is the structural representation of sacrificial anode kernel in embodiment 2；
Fig. 5 is structural representation of the invention in embodiment 2；
Fig. 6 is the structural representation of sacrificial anode kernel in embodiment 3；
Fig. 7 is the structural representation of sacrificial anode kernel in embodiment 3；
Fig. 8 is structural representation of the invention in embodiment 3；
Fig. 9 is the structural representation of sacrificial anode kernel in embodiment 4；
Figure 10 is structural representation of the invention in embodiment 4.
In figure, 1- sacrificial anodes kernel, 2- plain conductors, 3- bag pulp layer.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of armored concrete anti-corrosion sacrificial anode, for repaired steel bar concrete layer it is relatively thin and can installing space it is small
Preventative anti-corrosion, the structure of sacrificial anode kernel 1 is as shown in figure 1, the overall structure of sacrificial anode is as shown in Figure 2.Sacrificial anode
Kernel 1 uses Zn alloys, the component containing following weight percent content：Al 0.30~0.55, Cd 0.07~0.09,
Impurity element is Fe, Cu, Pb≤0.02；Remaining is Zn.The weight of zinc core is in 50~200g.
Sacrificial anode kernel 1 is the cylindrical structural of strip, geometric parameter in the present embodiment：The radius of zinc core be 4~
8mm；Highly it is 60~100mm.Plain conductor 2 can be parallel unremitting through kirsite center, two ends single or double joint
The length of exposed portion is 100~300mm, plain conductor diameter：1~3mm, the present embodiment uses single non-coating steel
Silk.Instrument metal binding wire is circlewise easy in the treatment of steel wire two ends, and sacrificial anode is fixed on reinforcing bar.Sacrificial anode kernel 1
The thickness of bag pulp layer 3 need to ensure more than 8mm.
The making step of this kind of sacrificial anode is as follows：
Step one, the other end for the zinc liquid of melting being cast in uncoated bright wire, the demoulding are taken out into
The long strip type kirsite block of type.50~200g of zinc nuclear weight.
Step 2, according to the form below proportioning prepare the parcel mortar of sacrificial anode, and the mortar thickness for wrapping up zinc core is more than 8mm.
Step 3, one end of kirsite block is fixed in a mold, to sacrificial anode parcel mortar is injected in mould, stand
The demoulding after 48~72h, obtains built-in sacrificial anode.
This kind of sacrificial anode for preparing is mated formation for reinforced concrete bridge deck, newly-built or reconstruction.To the position to be repaired and
Preventative preservative treatment thin layer repairing concrete reinforcement protection and narrow and small bar spacing are carried out around seam crossing.
Embodiment 2
A kind of armored concrete anti-corrosion sacrificial anode, preventative anti-corrosion or control for concrete reinforcement will be repaired
Part and the corrosion of seam crossing, basis are roughly the same with embodiment 1.The structure of sacrificial anode kernel 1 as shown in Figure 3-4,
The overall structure of sacrificial anode is as shown in Figure 5.
The present embodiment uses flat many flute profile zinc cores, geometric parameter：60~100mm of length, the width of big cuboid
20~35mm, 6~15mm of height；In the several small cuboid pick of big cuboid height both sides distribution, 4~10mm of length, width
2~5mm of degree, 6~15mm of height.Plain conductor 2 is parallel unremitting through kirsite center single or double joint, and two ends are exposed
Partial length is 100~300mm, plain conductor 1~3mm of diameter, used in the present embodiment the double joint that is parallel to each other without
Coating wire.Instrument metal binding wire is circlewise easy in the treatment of steel wire two ends, and sacrificial anode is fixed on reinforcing bar.Big cuboid is high
Degree direction both sides be symmetrically and evenly distributed small cuboid pick one side quantity be：5~20.Small cuboid pick spacing 2~
5mm。
Plain conductor is unremitting through kirsite center, the gold being placed in parallel by two plain conductors 2 being placed in parallel
Category conductor spacing is 1~5mm.100~300g of zinc nuclear weight.
The making step of this kind of sacrificial anode is as follows：
Step one, the other end for the zinc liquid of melting being cast in uncoated bright wire, the demoulding are taken out into
Flat many flute profile kirsite blocks of type.100~300g of zinc nuclear weight.
Step 2, according to the form below proportioning prepare the parcel mortar of sacrificial anode, and the thickness of zinc core periphery parcel screed 3 is more than
8mm。
Step 3, one end of kirsite block is fixed in a mold, to sacrificial anode parcel mortar is injected in mould, stand
The demoulding after 48~72h, obtains built-in sacrificial anode.
Embodiment 3
A kind of armored concrete anti-corrosion sacrificial anode, for large space, the anti-corrosion of the concrete reinforcement of high density reinforcing bar,
The corrosion prevention of concrete reinforcement and control are played, by the anti-corrosion etc. of the concrete reinforcement of chloride ion contamination.Basis and reality
Apply example 1 roughly the same.As shown in fig. 6-7, the overall structure of sacrificial anode is as shown in Figure 8 for the structure of sacrificial anode kernel 1.
The present embodiment uses cylindric many fan leaf type zinc cores, geometric parameter：The radially even arrangement of thin column
Several blades, are transition small cylinder between thin column.5~the 20mm of radius of big thin column；2~5mm of thickness；It is thin
2~5mm of cylinder spacing；Number of blade N is 5~30；Plain conductor 2 is that single or double joint is parallel unremitting through kirsite
Center, the length of two ends exposed portion is 100~300mm, 1~3mm of plain conductor diameter.The treatment of steel wire two ends is circlewise easy to
Instrument metal binding wire, sacrificial anode is fixed on reinforcing bar.50~200g of zinc nuclear weight.
The making step of this kind of sacrificial anode is as follows：
Step one, the other end for the zinc liquid of melting being cast in uncoated bright wire, the demoulding are taken out into
Cylindric many flabellum lamellar body kirsite blocks of type.50~200g of zinc nuclear weight.
Step 2, according to the form below proportioning prepare the parcel mortar of sacrificial anode, and the zinc core periphery parcel thickness of screed 3 is more than
8mm。
Step 3, one end of kirsite block is fixed in a mold, to sacrificial anode parcel mortar is injected in mould, stand
The demoulding after 48~72h, obtains built-in sacrificial anode.
Embodiment 4：
A kind of armored concrete anti-corrosion sacrificial anode, drilling hole implantation type quickly protects sacrificial anode, for built coagulation
Native steel bar anti-corrosion measure.Concrete is cut without regionality, need to only be hit the person certain depth in concrete surface using boring tool
Hole, load sacrificial anode, with reinforcing bar formed be electrically connected, repair hole.Basis and the substantially phase of embodiment 1
Together.The structure of sacrificial anode kernel 1 is as shown in figure 9, the overall structure of sacrificial anode is as shown in Figure 10.
The present embodiment uses the quick protection type sacrificial anode inside zinc core of implanted, geometric parameter：Cylinder is along footpath
To evenly distributed several blades.Radius value 5~the 15mm of scope of cylinder, number of blade N are 3~8, fan leaf thickness is 2~
8mm.80~200g of zinc nuclear weight.Plain conductor 2 is parallel unremitting through kirsite center single or double joint, and one end is exposed
Wire length be 30~80mm, plain conductor diameter：1~3mm.Instrument colligation steel is circlewise easy in the treatment of steel wire two ends
Silk, sacrificial anode is fixed on reinforcing bar.
The making step of this kind of sacrificial anode is as follows：
Step one, the other end for the zinc liquid of melting being cast in uncoated bright wire, the demoulding are taken out into
The quick protection type kirsite block of implanted of type.80~200g of zinc nuclear weight.
Step 2, according to the form below proportioning prepare the parcel mortar of sacrificial anode, and zinc core periphery parcel mortar thickness is more than 8mm.
Step 3, one end of kirsite block is fixed in a mold, to injecting sacrificial anode parcel screed 3 in mould,
The demoulding after 48~72h is stood, built-in sacrificial anode is obtained.
The present invention has obtained sacrificial anode life-span, quality, current relationship by embodiment.For the application of sacrificial anode is provided
Theoretical calculation, it is specific as follows：
(1) sacrificial anode life-span, quality, current relationship：
The consumption rate of sacrificial anode is calculated：
Sacrificial anode K refers to unit quantity of electricity, the weight of the sacrificial anode material of annual actual consumption.
K=8760/e ч [kg/ (Aa)] (1)
E--- sacrificial anodes theory electrical equivalent (Ah/kg) in formula；
The current efficiency (%) of ч --- sacrificial anode
The hourage of 8760---1
The magnitude of current that sacrificial anode sends is calculated：Send magnitude of current IρMean the magnitude of current that sacrificial anode sends, its value with
Use environment is relevant with surface configuration.Computing formula is as follows：
IgI36=0.727lgA+lgU-1.188 (2)
Iρ=I36*36/ρ (3)
Exposed surface area (the m of A--- sacrificial anodes in formula2)
Potential difference (V) between U--- sacrificial anodes and protected object (negative electrode)
ρ --- concrete ratio resistance (Ω cm)
I36--- the magnitude of current (A) that ratio resistance sends when being 36 Ω cm (the average ratio resistance of seawater).
Iρ--- the magnitude of current (A) that-ratio resistance sends when being ρ Ω cm
The current potential of sacrificial zinc alloy anode：-1050mv.The current potential of reinforcement in concrete surface passivation is -100mV；Work as table
Face activate when be -350~-500mV, sacrificial anode and by the potential difference between protection reinforcing bar be 550~950mV.
ρ：The ratio resistance of concrete, with concrete material in itself and construction, ambient humidity, temperature have relation.Coagulation
The ratio resistance of soil or patching material is bigger (in order to reach optimum performance, it is desirable to the patching material or the electricity of concrete mortar for using
Resistance rate is less than 15000 Ω cm), built-in sacrificial anode generation current amount I ρ are smaller, and the corrosion rate of sacrificial anode is smaller.Instead
It, the ratio resistance of concrete or patching material is smaller, and (concrete under wet environment, resistivity ratio is relatively low, and take now is mixed
Solidifying soil resistivity is 1000 Ω cm), built-in sacrificial anode generation current amount I ρ are bigger, and the corrosion rate of sacrificial anode is bigger.
For the surface area of sacrificial anode kirsite block：A, volume is V.Sacrificial anode and steel are understood by formula (2) and formula (3)
The potential difference of muscle is bigger, the resistivity of concrete or patching material is smaller, and the electric current that sacrificial anode sends is bigger, corrodes faster.
Power taking potential difference higher value 950mV, during concrete less resistive 1000 Ω cm of rate, the electric current for obtaining is larger, and corrosion is very fast.
Of the invention 1~4 embodiment respectively takes an example to illustrate.
The radius that the cylindrical structural parameter of the strip of embodiment 1 takes zinc core is 6mm；Highly it is 80mm.
Surface area A1=3242mm2=3242*10-6m2, volume V1 is 9.05cm3, mass M 1=66g.
The flat many flute profile zinc cores of embodiment 2 take length 80.5mm, width 42mm, the height 11mm of big cuboid；Greatly enhancing
The several small cuboid pick of cube height both sides distribution, length 8mm, width 3.5mm, height 11mm.Surface area A2=
11011mm2=11011*10-6m2, volume V2 is 29.1cm3, mass M 2=212.4g.
The cylindric many fan leaf type zinc Nuclear goemetry parameters of embodiment 3 take the radially even several blades of arrangement of thin column,
It is transition small cylinder between thin column.The radius 10mm of big thin column；Thickness 3.5mm；Thin column spacing
3mm；Transition roundlet column radius is 3mm；Number of blade N is calculated surface area A3=8482mm for 102=8482*10-6m2,
Volume V1 is 11.76cm3, mass M 3=85.85g.
It is 4, surface area A4=7045mm that the geometric parameter of the multiple-blade cylinder of embodiment 4 takes number of blade N2=7045*
10-6m2, volume V4 is 18.862cm3, mass M 4=137.7g.
Obtained during A1~A4 and U=0.95V, ρ=1000 Ω cm are substituted into formula (2) and formula (3) respectively, I361=
0.00095A=0.95mA, I ρ 1 (magnitude of current)=I36* 36/ ρ=0.0342mA.I ρ 1 (current strength)=I ρ 1 (magnitude of current)/
SSurface area=10.5mA/m2.By theoretical electrical equivalent=820 of kirsite, current efficiency ч of the kirsite in high-alkali mortar is more than
90%, minimum current efficiency is taken by formula (1) and obtains maximum sacrificial anode wear rate K=11.84kg/ (Aa), electric current is strong
Degree is multiplied by sacrificial anode surface area and obtains electric current I, K*I that sacrificial anode sends and draws the weight of annual sacrificial anode consumption.
GConsumption max=K*I=11.84*0.0342g=0.405 (g), calculating learns that the weight of annual sacrificial anode consumption is positive less than sacrificing
The 0.62% of pole weight., as the use surface area of sacrificial anode is slightly reduced, the magnitude of current that sacrificial anode is produced is slightly lower initial
Value, depletion rate has slowed down.Take the upper limit G of year consumption rateConsumption max0.405g, the weight mass M 1=66g of sacrificial anode.Produce
Product are less than 8.1g using the expendable weight after 20 years, less than the 13% of spelter weight, it is ensured that product can use 20+.
I362 (magnitude of current)=0.0023A=2.3mA；I ρ 2 (magnitude of current)=I36(the electric currents of * 36/ ρ=0.0828mA, I ρ 2
Intensity)=I ρ 2 (magnitude of current)/SSurface area=7.519mA/m2.By GConsumption max=K*I=11.84*0.0828g=0.98 (g), calculates
Learn the weight of annual sacrificial anode consumption less than the 0.47% of sacrificial anode weight.Ibid it is less than using 20 years post consumption weight
19.6g, less than the 10% of spelter weight, it is ensured that product can use 20+.
I363 (magnitude of current)=0.00192A=1.92mA；I ρ 3 (magnitude of current)=I36(the electricity of * 36/ ρ=0.0691mA, I ρ 3
Intensity of flow)=I ρ 3 (magnitude of current)/SSurface area=8.15mA/m2.By GConsumption max=K*I=11.84*0.0691g=0.818 (g), meter
Calculation learns the weight of annual sacrificial anode consumption less than the 0.95% of sacrificial anode weight.It is less than using 10 years post consumption weight
8.18g, less than the 10% of spelter weight, it is ensured that the product can use 10+.
I364 (magnitude of current)=0.00168A=1.68mA；I ρ 4 (magnitude of current)=I36(the electricity of * 36/ ρ=0.0605mA, I ρ 4
Intensity of flow)=I ρ 4 (magnitude of current)/SSurface area=8.58mA/m2.By GConsumption max=K*I=11.84*0.0605g=0.716 (g), meter
Calculation learns the weight of annual sacrificial anode consumption less than the 0.6% of sacrificial anode weight.It is less than using 20 years post consumption weight
14.32g, about the 10% of spelter weight, it is ensured that the product can use 20+.
Claims (10)
1. a kind of armored concrete anti-corrosion sacrificial anode, it is characterised in that including：
Sacrificial anode kernel,
The plain conductor of sacrificial anode kernel is fed through,
It is coated on the bag pulp layer outside sacrificial anode kernel.
2. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described sacrifice sun
Pole kernel is kirsite block, the raw material containing following components and percentage by weight：Al 0.30~0.55, Cd 0.07~0.09,
Impurity element is Fe, Cu, Pb≤0.02；Remaining is Zn.
3. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described sacrifice sun
Pole kernel is cylindrical-shaped structure, and radius is 4-8mm, is highly 60-100mm, and weight is 50-200g, and plain conductor is positive from sacrificing
The two ends of pole kernel pass, and the length of the part exposed is 100-300mm.
4. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described sacrifice sun
Pole kernel is rectangular structure, and the 5-20 pick of small rectangular-shape is also distributed with both sides, and the length of cuboid is 60-
100mm, width is 20-35mm, is highly 6-15mm, and the length of pick is 4-10mm, and width is 2-5mm, is highly 6-15mm,
The distance between adjacent pick is 2-5mm, and the weight of sacrificial anode kernel is 100-300g, and plain conductor is from sacrificial anode kernel
Two ends pass, the length of the part exposed is 100-300mm.
5. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described sacrifice sun
Pole kernel is that the thin circle of 5-30 radially even arrangements ' cylinder and is connected to transition small cylinder knot between each thin column
Structure, the radius of described thin column is 10-30mm, and thickness is 2-5mm, and the distance between adjacent thin column is 2-5mm, sacrificial
The weight of domestic animal anode kernel is 50-200g, and plain conductor is passed from the two ends of sacrificial anode kernel, and the length of the part exposed is
100-300mm。
6. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described sacrifice sun
Pole kernel is the structure that 3-8 blade is distributed on plain conductor outer surface, and the length of blade is 5-15mm, and width is 2-8mm, sacrificial
The weight of domestic animal anode kernel is 80-200g, and plain conductor is passed from one end of sacrificial anode kernel, and the length of the part exposed is
30-80mm。
7. a kind of armored concrete anti-corrosion sacrificial anode according to any one of claim 1-6, it is characterised in that institute
The plain conductor stated is double joint non-coating steel silk that is single or being parallel to each other, a diameter of 1-3mm.
8. a kind of armored concrete anti-corrosion sacrificial anode according to claim 7, it is characterised in that described metal is led
The end structure annular in shape of line.
9. a kind of armored concrete anti-corrosion sacrificial anode according to any one of claim 1-6, it is characterised in that institute
The thickness of the bag pulp layer of the sacrificial anode kernel periphery parcel stated is not less than 8mm.
10. a kind of armored concrete anti-corrosion sacrificial anode according to claim 1, it is characterised in that described bag slurry
Layer is mixed with using following components and raw material and obtained：Quartz sand 150-220, portland cement 80-120, water reducer
2-5, bentonite 15-25, are also added with active additive, and addition is the 0.1-0.2% of cumulative volume,
The particle diameter of described quartz sand is 1-2mm,
Described portland cement is 42.5# portland cements,
Described water reducer is wooden calcium sulfonate,
Described bentonite is sodium bentonite,
Described active additive is strong base substance, including but not limited to NaOH, KOH, Ca (OH)2, LiOH or Ba (OH)2。
Priority Applications (1)
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| CN109678414A (en) * | 2018-08-31 | 2019-04-26 | 南京优邦加能新材料科技有限公司 | A kind of porous mortar of flush type composite sacrificial anode and preparation method thereof |
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| CN115504748A (en) * | 2022-10-28 | 2022-12-23 | 广州市克来斯特建材科技有限公司 | Sacrificial anode protective layer mortar and preparation method and application thereof |
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