JPH10501849A - Corrosion prevention of reinforcement metal and improvement of bonding characteristics - Google Patents
Corrosion prevention of reinforcement metal and improvement of bonding characteristicsInfo
- Publication number
- JPH10501849A JPH10501849A JP8530838A JP53083896A JPH10501849A JP H10501849 A JPH10501849 A JP H10501849A JP 8530838 A JP8530838 A JP 8530838A JP 53083896 A JP53083896 A JP 53083896A JP H10501849 A JPH10501849 A JP H10501849A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- concrete
- hydrazine
- aqueous solution
- treated
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 230000002787 reinforcement Effects 0.000 title claims description 4
- 238000005536 corrosion prevention Methods 0.000 title description 3
- 238000005260 corrosion Methods 0.000 claims abstract description 12
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 11
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical class NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 7
- 239000010452 phosphate Substances 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical class ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 5
- 150000002429 hydrazines Chemical class 0.000 claims abstract description 4
- 239000000654 additive Substances 0.000 claims abstract description 3
- 239000004568 cement Substances 0.000 claims abstract description 3
- 238000005470 impregnation Methods 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims abstract description 3
- 230000000996 additive effect Effects 0.000 claims abstract 2
- 239000007900 aqueous suspension Substances 0.000 claims abstract 2
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract 2
- 239000000835 fiber Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 239000012779 reinforcing material Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 239000011378 shotcrete Substances 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 abstract description 4
- 150000002826 nitrites Chemical class 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002161 passivation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000004166 Lanolin Substances 0.000 description 1
- -1 aromatic carboxylic acids Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002443 hydroxylamines Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000012457 nonaqueous media Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Reinforcement Elements For Buildings (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】 コンクリート系のための補強金属の腐食防止および接合特性の改善を同時に行うために使用される新規の方法であって；この方法は、Fe-、Ca/Zn-、Zn-、またはMn-リン酸塩処理による金属部品の表面処理、ならびに続いての還元性および／または不動態化化合物（例えば、亜硝酸塩、タロム酸塩、ヒドラジンまたはヒドラジン誘導体、ヒドロキシルアミンまたはヒドロキシルアミン誘導体）および／または有機腐食防止剤の水溶液または懸濁液による表面処理を包含する。場合により、続いての追加的な腐食防止剤、例えば気化性防錆剤、定着剤、金属／非金属ゾル、および／またはコンクリート／セメント添加剤の非水性または水性溶液を用いたホスフェート層の含浸が行われる。 (57) [Summary] A novel method used for simultaneously preventing corrosion of reinforcing metals for concrete systems and improving the joining properties; this method comprises Fe-, Ca / Zn-, Zn-, or Mn-phosphate Surface treatment of metal parts by salt treatment and subsequent reduction and / or passivation compounds (eg nitrites, talomates, hydrazine or hydrazine derivatives, hydroxylamine or hydroxylamine derivatives) and / or organic corrosion protection Surface treatment with an aqueous solution or suspension of the agent. Optionally impregnation of the phosphate layer with a subsequent non-aqueous or aqueous solution of an additional corrosion inhibitor, for example a vaporizable rust inhibitor, a fixing agent, a metal / non-metal sol, and / or a concrete / cement additive. Is performed.
Description
【発明の詳細な説明】 補強金属の腐食防止および接合特性の改善 本発明は、コンクリート系材料のための補強金属の腐食防止および接着特性の 改善を同時に行う方法およびそのように処理した補強金属の使用方法に関する。 ヨーロッパ特許出願公開第0 285 593号明細書の冒頭では、従来の補強材料に はとりわけ腐食の問題があることが記載されている。この従来技術の教示によれ ば、補強ロッドは、鋼鉄の熱処理の際またはその直後に、溶融浴中で表面をリン 酸塩処理(phosphatizing)または酸化処理される。 ドイツ特許出願公開第37 08 983号明細書に記載された一般的に類似した方法 は、補強鋼鉄をフルオロカーボンコポリマーで表面コーティングすることを提案 している。 これに対して、本発明に従ったコンクリート系のための補強金属の腐食防止お よび接合特性の改善を同時に行う方法は、 −Fe-、Ca/Zn-、Zn-、またはMn-リン酸塩処理による金属部品の表面処理、 −続いての還元性および／または不動態化(PassiVating)化合物（例えば、亜硝 酸塩、クロム酸塩、ヒドラジンまたはヒドラジン誘導体、ヒドロキシルアミンま たはヒドロキシルアミン誘導体）および／または有機腐食防止剤の水溶液または 懸濁液による表面処理、および場合により −続いての追加的な腐食防止剤（例えば、気化性防錆剤）、定着剤、金属／非金 属ゾル、および／またはコンクリート／セメント添加剤の非水性または水性溶液 を用いたホスフェート層の含浸、 により特徴づけられる。 上記の金属部品は、ロッド、シート、釘、ワイヤ、ピン、ファイバー、または その他の形状の部品であってもよく；そしてその表面は、鉄または鉄合金、亜鉛 または亜鉛合金および／またはその他のリン酸塩処理できる金属からなる。 このように処理した補強金属は、コンクリート支持体または支持要素において 、ならびに工業用の床および天井要素において、ロッド、シート、ファイバー、 ピン、釘、および／またはワイヤの形態で使用され、そして吹き付けコンタリー トにおいて金属ファイバーの形態で使用され、その際補強剤とコンクリートとの 接着性の改善により、結合部品の機械的強度が増加する。 本発明のリン酸塩処理段階は、公知の金属ホスフェート浴、特にFe-、Zn-、Zn /Ca-、またはMn-ホスフェート浴中で実施される。使用される化学的促進剤は、 水溶性酸化剤、例えば亜硝酸塩、塩素酸塩、またはクロム酸塩、または有機促進 剤、例えばN-含有化合物、特にアニリンまたはピリジンまたは芳香族カルボン酸 をも含有する。 上記のリン酸塩処理は、バッチ式または連続式に、浴中または噴霧装置におい て、室温またはそれ以上の温度で実施される。 数十ミクロンの厚さを有しているリン酸塩処理層の、通常熱空気により行われ る乾燥後、リン酸塩処理層は、本発明に従って、続いて表面フラッシュされる； これは通常室温で行われる。 リン酸塩処理層の追加的な処理のために、還元性および／または不動態化化合 物、特に亜硝酸塩またはヒドラジンまたはヒドラジン誘導体またはヒドロキシル アミンまたはヒドロキシルアミン誘導体、クロム酸塩および場合によりパラフィ ン、ステアレートまたはラノリンを加えた天然および／または合成オイルの水溶 液または懸濁液が用いられる。 屋外における貯蔵の際にも、本発明に従って処理した補強材料は、未処理の標 本よりも明らかに腐食が少ない。 本発明の鋼鉄の補強ファイバー（長さ２または４ｃｍ）で補強した吹き付けコ ンクリート標品は、通常の方法で補強した補強標品と比較して約４％高い引張り 強さを示す；前者の標品の噴霧の際に屋外における六ケ月間の貯蔵の後でも鋼鉄 ファイバーには腐食の兆候は現れない。DETAILED DESCRIPTION OF THE INVENTION Corrosion prevention of reinforcement metal and improvement of bonding characteristics The present invention relates to the prevention of corrosion and adhesion properties of reinforcing metals for concrete-based materials. It relates to a method of making improvements simultaneously and to the use of a reinforcing metal so treated. At the beginning of EP-A-0 285 593, conventional reinforcing materials are used. Describe, inter alia, that there is a corrosion problem. According to this prior art teaching For example, the reinforcing rods may be phosphorylated in a molten bath during or shortly after heat treatment of the steel. It may be phosphatizing or oxidizing. A generally similar method described in DE-A 37 08 983 Proposes surface coating of reinforced steel with fluorocarbon copolymer doing. In contrast, the corrosion prevention and reinforcement of reinforcing metals for concrete systems according to the invention And simultaneously improving the bonding characteristics -Surface treatment of metal parts by Fe-, Ca / Zn-, Zn-, or Mn-phosphate treatment, -A subsequent reducing and / or passivating compound (e.g. Acid salts, chromates, hydrazine or hydrazine derivatives, hydroxylamine Or hydroxylamine derivatives) and / or aqueous solutions of organic corrosion inhibitors or Surface treatment with suspension, and possibly -Followed by additional corrosion inhibitors (e.g. vaporizable rust inhibitors), fixing agents, metal / non-gold Non-aqueous or aqueous solutions of genus sols and / or concrete / cement additives Impregnation of the phosphate layer using It is characterized by The above metal parts can be rods, sheets, nails, wires, pins, fibers, or Parts of other shapes may be used; and the surface may be iron or iron alloy, zinc Or a zinc alloy and / or other phosphatable metal. The reinforcing metal treated in this way can be used on concrete supports or supporting elements. In industrial floor and ceiling elements, rods, sheets, fibers, Used in the form of pins, nails and / or wires and sprayed contour Used in the form of metal fibers in The improved adhesion increases the mechanical strength of the joined parts. The phosphating step of the present invention can be carried out using known metal phosphate baths, especially Fe-, Zn-, Zn- Performed in a / Ca- or Mn-phosphate bath. The chemical accelerator used is Water-soluble oxidizing agents, such as nitrites, chlorates, or chromates, or organic enhancers Agents such as N-containing compounds, especially aniline or pyridine or aromatic carboxylic acids Is also contained. The above phosphating can be carried out batchwise or continuously, in a bath or in a sprayer. At room temperature or higher. Of a phosphating layer having a thickness of tens of microns, usually by hot air After drying, the phosphating layer is subsequently flushed according to the invention; This is usually done at room temperature. For additional treatment of the phosphating layer, reducing and / or passivating compounds Substances, especially nitrites or hydrazine or hydrazine derivatives or hydroxyl Amine or hydroxylamine derivatives, chromates and optionally paraffin Of natural and / or synthetic oils with added oils, stearate or lanolin Liquids or suspensions are used. During outdoor storage, the reinforcing material treated according to the present invention is still untreated. Obviously less corrosion than the book. Sprayer reinforced with steel reinforcing fiber (length 2 or 4 cm) of the present invention Concrete specimens have about 4% higher tensile strength than reinforced specimens reinforced by the usual method. Shows strength; steel even after six months of storage outdoors when spraying the former standard The fiber shows no signs of corrosion.
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01080/95A CH689307A5 (en) | 1995-04-13 | 1995-04-13 | Process for both corrosion inhibition and strengthening the bonding properties of reinforcing metals. |
| CH01080/95-5 | 1995-04-13 | ||
| PCT/IB1996/000244 WO1996032522A1 (en) | 1995-04-13 | 1996-03-19 | Corrosion inhibition and improvement of adhesion characteristics of reinforcing metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10501849A true JPH10501849A (en) | 1998-02-17 |
Family
ID=4201995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8530838A Pending JPH10501849A (en) | 1995-04-13 | 1996-03-19 | Corrosion prevention of reinforcement metal and improvement of bonding characteristics |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0755462B1 (en) |
| JP (1) | JPH10501849A (en) |
| AT (1) | ATE183553T1 (en) |
| CH (1) | CH689307A5 (en) |
| DE (1) | DE59602778D1 (en) |
| DK (1) | DK0755462T3 (en) |
| WO (1) | WO1996032522A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002055A (en) * | 2011-06-13 | 2013-01-07 | Ps Mitsubishi Construction Co Ltd | Corrosion suppressing method for pc tendon |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100245851B1 (en) * | 1997-01-16 | 2000-03-02 | 한규택 | Adhesive anti-corrosive coating method for steel pipes and rebars |
| JP2001271184A (en) * | 2000-03-24 | 2001-10-02 | Nisshin Kako Kk | Corrosion protection treating agent and method for stainless steel |
| WO2011076273A1 (en) * | 2009-12-23 | 2011-06-30 | Vsl International Ag | Improved strand and method of producing the same |
| CN103161182A (en) * | 2011-12-09 | 2013-06-19 | 彭道儒 | Novel anticorrosion process of concrete reinforcing steel bar phosphorization mitigation method |
| CN104962935A (en) * | 2015-06-13 | 2015-10-07 | 周彩球 | Copper alloy acid pickling passivant |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992131A (en) * | 1957-03-21 | 1961-07-11 | Jenolite Ltd | Treatment of metal surfaces |
| FR2527246A1 (en) * | 1982-05-21 | 1983-11-25 | Freyssinet Int Stup | IMPROVEMENTS IN PRE-STRESS CONDUITS AND THEIR MANUFACTURING METHODS |
| BE1000432A6 (en) * | 1987-04-03 | 1988-12-06 | Centre Rech Metallurgique | Method for improving the corrosion resistance of steel rebar and self-quenching income. |
-
1995
- 1995-04-13 CH CH01080/95A patent/CH689307A5/en not_active IP Right Cessation
-
1996
- 1996-03-19 WO PCT/IB1996/000244 patent/WO1996032522A1/en not_active Ceased
- 1996-03-19 JP JP8530838A patent/JPH10501849A/en active Pending
- 1996-03-19 EP EP96904249A patent/EP0755462B1/en not_active Expired - Lifetime
- 1996-03-19 DK DK96904249T patent/DK0755462T3/en active
- 1996-03-19 AT AT96904249T patent/ATE183553T1/en not_active IP Right Cessation
- 1996-03-19 DE DE59602778T patent/DE59602778D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002055A (en) * | 2011-06-13 | 2013-01-07 | Ps Mitsubishi Construction Co Ltd | Corrosion suppressing method for pc tendon |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996032522A1 (en) | 1996-10-17 |
| DE59602778D1 (en) | 1999-09-23 |
| EP0755462B1 (en) | 1999-08-18 |
| EP0755462A1 (en) | 1997-01-29 |
| CH689307A5 (en) | 1999-02-15 |
| ATE183553T1 (en) | 1999-09-15 |
| DK0755462T3 (en) | 2000-03-13 |
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