JP6273654B2 - 犠牲陽極を使用する腐食防止 - Google Patents
犠牲陽極を使用する腐食防止 Download PDFInfo
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- 238000005536 corrosion prevention Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims description 104
- 238000005260 corrosion Methods 0.000 claims description 79
- 230000007797 corrosion Effects 0.000 claims description 79
- 150000002500 ions Chemical class 0.000 claims description 74
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- 239000010405 anode material Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 238000004210 cathodic protection Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 69
- 239000002184 metal Substances 0.000 description 69
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 62
- 239000011701 zinc Substances 0.000 description 59
- 229910052725 zinc Inorganic materials 0.000 description 50
- 229910000831 Steel Inorganic materials 0.000 description 44
- 239000010959 steel Substances 0.000 description 44
- 239000004020 conductor Substances 0.000 description 42
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000011787 zinc oxide Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 230000008021 deposition Effects 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000000499 gel Substances 0.000 description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 239000012190 activator Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910003455 mixed metal oxide Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- -1 hydroxide ions Chemical class 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
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- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 238000007710 freezing Methods 0.000 description 1
- 229920000876 geopolymer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- C23F13/20—Conducting electric current to electrodes
-
- 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
- C23F13/06—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
- C23F13/10—Electrodes characterised by the structure
-
- 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
-
- 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
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
- C23F2213/21—Constructional parts or assemblies of the anodic or cathodic protection apparatus combining at least two types of anodic or cathodic protection
-
- 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
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
- C23F2213/22—Constructional parts or assemblies of the anodic or cathodic protection apparatus characterized by the ionic conductor, e.g. humectant, hydratant or backfill
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/015—Anti-corrosion coatings or treating compositions, e.g. containing waterglass or based on another metal
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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)
Description
イオン導電性材料とのイオン接触状態で犠牲材料の犠牲陽極を位置付ける工程;
犠牲材料のイオンが犠牲陽極から生成され、故に犠牲陽極が腐食するにつれて犠牲陽極を消耗させるように、金属部分に対して優先的に犠牲陽極を腐食させる工程;
及び、犠牲陽極材料のイオンで犠牲陽極を再充電する工程、を含む。
イオン導電性材料とのイオン接触状態で印加電流陽極を位置付ける工程;
イオン導電性材料とのイオン接触状態で犠牲陽極を位置付ける工程;
直流電源を提供する工程;
印加電流陽極に直流電源の第1端子を接続する工程;
犠牲陽極に犠牲陽極イオンを堆積させる材料にイオン電流を流すために、犠牲陽極に直流電源の第2端子を接続する工程、を含む。
金属部分ほど貴でない材料の犠牲陽極;
印加電流陽極;
犠牲陽極への接続のために配置される第1電気コネクタ;
及び、印加電流陽極への接続のために配置される第2電気コネクタ、を含み、
前記犠牲陽極及び前記印加電流陽極は、陽極装置の構成要素を含み、その結果、陽極装置の構成要素がイオン導電性材料と接触して位置付けられる場合、前記犠牲陽極及び前記印加電流陽極の各々は、他方との、及び金属部分とのイオン導電性伝達下にあり;
前記印加電流陽極及び前記犠牲陽極は、その間での電気伝達を防ぐために電気的に分離される。
イオン導電性材料との接触状態で印加電流陽極を位置付ける工程;
イオン導電性材料との接触状態で、金属部分ほど貴でない材料の犠牲陽極を位置付ける工程;
直流電源を提供する工程;
金属部分の腐食防止を提供するために金属部分と印加電流陽極との間に電流を作成するように、印加電流陽極及び金属部分をわたる直流電源の接続を提供する工程;
及び、犠牲陽極が金属部分の腐食防止を提供するように、犠牲陽極と金属部分の間に接続を提供する工程、を含む。
ZnO+2OH−+H2O→Zn(OH)4 2− (1)
Zn(OH)4 2−→Zn2++4OH− (2)
Zn2++2e−→Zn (3)
2OH−→1/2O2+H2O+2e− (4)又は
H2O→1/2O2+2H++2e− (5)
Zn+4OH−→Zn(OH)4 2−+2e− (6)
Zn(OH)4 2−→ZnO+2OH−+H2O (7)
1つの例において、0.7cmの最小直径を伴う8cmの長さの、鋳造亜鉛陽極を、導電性セラミックの印加電流陽極管の内部でパックされる、ZnO/チキソトロピックのペーストに位置付けた。亜鉛ペーストを、カルボキシメチルセルロースナトリウムの増粘剤と共に、2M KOH及び20%ZnOを備えたLiOHで飽和させた溶液から作成した。亜鉛陽極と28mmチューブの内側との間の空間において、ペーストをパックした。イオンが多孔性の管壁を通過することができ、その結果、たとえ印加電流陽極の内部に位置つけられたとしても、亜鉛陽極は外部鋼鉄筋上に電流を通すことができることが、試験によって示された。続いて、亜鉛の充電は、印加電流陽極と犠牲陽極の間に外部電圧を適用することにより、印加電流の多孔性管状陽極を通るイオンの流れを逆にすることによって、達成され得る。約6−8ボルトの印加電圧は、ちょうど40,000クーロン未満の合計の充電/再充電を達成する内部亜鉛陽極に送達される、1.6Aまでの電流を、結果としてもたらした。驚くことに、亜鉛陽極は、元のものよりも、再充電後に行われた方が優れていた。亜鉛陽極の充電後、亜鉛陽極が鋼に再度接続された時、鋼へと通じる多孔性の管状の印加電流陽極により充電した亜鉛陽極の電流出力及び蓄積した充電出力は、本来の亜鉛陽極と比較して、増大した。性能におけるこの改善の正確な理由は知られていないが、充電後の陽極の電流出力は増大する。
原位置で陽極を充電/再充電する能力を実証するための組立体(49)を、図11に示されるように構築した。それは、非常にアルカリ性の(7モーラー OH−)ゲル(51)に部分的に浸された、亜鉛ワイヤー(50)から成る。原位置で形成される犠牲陽極のための銅線コネクタ(53)も、同じゲルに浸した。繊維織物(55)及びイオン導電性膜(56)の層によって、内面的及び外面的の両方で並べられる、穿孔したプラスチックチューブ(54)内にゲルが包含された。外部織物とチューブの間で、混合金属酸化物(MMO)でコーティングしたチタンメッシュ(57)が周辺に固定され、それは、片側に取り付けられるチタン接続ワイヤー(58)を備えた。全体の組立体を、LiOHが豊富なモルタル(59)で覆った。
Claims (20)
- イオン導電性コンクリート又はモルタル材料中の鉄筋の腐食防止の方法であって、該方法は:
イオン導電性コンクリート又はモルタル材料とのイオン接触状態で印加電流陽極を、これらイオン導電性コンクリート又はモルタル材料と印加電流陽極との間でのイオン伝達を許容するように、位置付ける工程;
イオン導電性コンクリート又はモルタル材料とのイオン接触状態で、鉄筋ほど貴でない材料の犠牲陽極を、これらイオン導電性コンクリート又はモルタル材料と犠牲陽極との間でのイオン伝達を許容するように、位置付ける工程;
直流電源を提供する工程;
鉄筋の腐食防止を提供するために鉄筋と印加電流陽極との間に印加電流を作成するように、印加電流陽極及び鉄筋をわたる直流電源の電気的接続を提供する工程;
及び、犠牲陽極が鉄筋の腐食防止を提供するために作用するように、犠牲陽極と鉄筋の間に電気的接続を提供する工程
を含み、
前記印加電流陽極及び前記犠牲陽極は、それらの間での電気伝達を防ぐために電気的に分離され、
前記犠牲陽極は、前記印加電流中に前記鉄筋に接続されたまま残る、
ことを特徴とする、方法。 - 印加電流陽極と鉄筋の間の直流電源の適用は、印加電流を提供し、印加電流が終了すると、犠牲陽極と鉄筋の接続は、鉄筋の腐食防止を提供する、ことを特徴とする請求項1に記載の方法。
- 鉄筋の腐食防止は、犠牲陽極及び鉄筋の接続によって提供され、犠牲陽極によって提供される腐食防止の期間後、直流電源は、印加電流陽極と鉄筋の間で適用され、鉄筋を更に保護する、ことを特徴とする請求項1に記載の方法。
- 印加電流によって鉄筋を不動態化する工程を含む、請求項1乃至3の何れかに記載の方法。
- 1平方メートル当たり20,000クーロンの最小の合計充電が鉄筋に適用されるまで、印加電流陽極により提供される電流は適用される、ことを特徴とする請求項1乃至4の何れかに記載の方法。
- 犠牲陽極材料のイオンからの犠牲陽極材料により、犠牲陽極を充電する工程を含む、請求項1乃至5の何れかに記載の方法。
- 印加電流陽極は、イオン導電性コンクリート又はモルタル材料の中に、又はその上に取り付けられ、その後に取り外される、ことを特徴とする請求項1乃至6の何れかに記載の方法。
- 犠牲陽極から、犠牲陽極を囲む材料から、又はイオン導電性コンクリート又はモルタル材料から充電するために、犠牲材料の前記イオンが提供される、ことを特徴とする請求項6又は7に記載の方法。
- 第1工程において、犠牲陽極は、犠牲陽極の腐食生成物の組成を結果としてもたらす犠牲陽極の腐食によって鉄筋の腐食防止を提供するために、鉄筋に接続され、及び、犠牲陽極の腐食が生じた後の第2工程において、直流電源によって供給される電流は、犠牲陽極の腐食生成物からの犠牲材料のイオンを、犠牲陽極上に再堆積させる、ことを特徴とする請求項1乃至8の何れかに記載の方法。
- 直流電源は、印加電流陽極に、及び鉄筋と犠牲陽極に接続され、ここで、鉄筋は保護され、同時に犠牲陽極は犠牲材料のイオンで充電される、ことを特徴とする請求項1乃至9の何れかに記載の方法。
- イオン導電性コンクリート又はモルタル材料中に、又は犠牲陽極に隣接する材料中に犠牲材料のイオンを組み込む工程であって、犠牲陽極上に犠牲材料の組み込まれたイオンを堆積させることにより、犠牲陽極がイオン導電性コンクリート又はモルタル材料中に生成又は組み上げられる、工程、を含む請求項1乃至10の何れかに記載の方法。
- 直流電源が適用されて、その後に取り外される、ことを特徴とする請求項1乃至11の何れかに記載の方法。
- 直流電源は、バッテリーによって適用される、ことを特徴とする請求項1乃至12の何れかに記載の方法。
- イオン導電性コンクリート又はモルタル材料の鉄筋を陰極保護するための陽極装置であって、該陽極装置は:
鉄筋ほど貴でない材料の犠牲陽極;
直流電源に接続するための印加電流陽極;
犠牲陽極への電気接続;
及び、印加電流陽極への電気接続
を含み、
前記犠牲陽極及び前記印加電流陽極は、陽極装置の構成要素を含み、その結果、陽極装置の構成要素がイオン導電性コンクリート又はモルタル材料と接触して、これら陽極装置の構成要素とイオン導電性コンクリート又はモルタル材料との間でのイオン伝達を許容するように、位置付けられる場合、前記犠牲陽極及び前記印加電流陽極の各々は、他方との、及び鉄筋とのイオン導電性伝達下にあり;
前記印加電流陽極及び前記犠牲陽極は、それらの間での電気伝達を防ぐために電気的に分離され、
前記犠牲陽極および前記印加電流陽極は、イオン導電性コンクリート又はモルタル材料と接触して共通の予め組み立てられた組立体として搭載されるために配置された共通の陽極組立体の共通の構成要素を、共に形成する
ことを特徴とする、陽極装置。 - 直流電源を含む、請求項14に記載の陽極装置。
- 直流電源は光電池又はバッテリーを含む、ことを特徴とする請求項14又は15に記載の陽極装置。
- 印加電流陽極は、イオン電流の通過が印加電流陽極を通過することを可能にするように穿孔される、ことを特徴とする請求項14乃至16の何れかに記載の陽極装置。
- 印加電流陽極は、犠牲陽極の少なくとも一部を囲む、ことを特徴とする請求項14乃至17の何れかに記載の陽極装置。
- 印加電流陽極及び犠牲陽極は、隣り合って配置されていることを特徴とする請求項14乃至17の何れかに記載の陽極装置。
- 犠牲陽極に隣接する、イオン導電性フィラー材が提供される、ことを特徴とする請求項14乃至19の何れかに記載の陽極装置。
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US13/553,489 US20140021039A1 (en) | 2012-07-19 | 2012-07-19 | Apparatus for Cathodic Protection System Using an Impressed Current Anode and a Sacrificial Anode |
US13/553,514 | 2012-07-19 | ||
US13/553,498 | 2012-07-19 | ||
US13/553,514 US8968549B2 (en) | 2012-07-19 | 2012-07-19 | Two stage cathodic protection system using impressed current and galvanic action |
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