WO1996032522A1 - Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen - Google Patents
Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen Download PDFInfo
- Publication number
- WO1996032522A1 WO1996032522A1 PCT/IB1996/000244 IB9600244W WO9632522A1 WO 1996032522 A1 WO1996032522 A1 WO 1996032522A1 IB 9600244 W IB9600244 W IB 9600244W WO 9632522 A1 WO9632522 A1 WO 9632522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal
- concrete
- surface treatment
- hydroxylamine
- fibers
- Prior art date
Links
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
Definitions
- the invention concerned here relates to a method for simultaneous corrosion inhibition and improvement of the composite properties of reinforcing metals for or in binder systems.n) and the use of reinforcing metals treated in this way.
- reinforcement rods are phosphated or oxidized on the surface during or immediately after the thermal post-treatment of the steel in melt baths.
- the metal parts mentioned can be rods, plates, nails, wires, pins, fibers or other shaped parts, and their surfaces can consist of iron or iron alloys, zinc or zinc alloys and / or other phosphatable metals.
- the reinforcing metals treated in this way are used in the form of rods, plates, fibers, pins, nails and / or wires in concrete supporting or supporting elements as well as industrial floors and ceiling elements and in the form of metal fibers in shotcrete, the improvement the bond between reinforcement and concrete also leads to an increase in the mechanical strength of the overall parts.
- the phosphating step according to the invention is carried out in metal phosphate baths known per se, especially executed in Fe, Zn, Zn / Ca or Mn phosphate baths.
- Chemical accelerators used for this purpose include water-soluble oxidizing agents such as nitrates, chlorates or chromates or organic accelerators such as N-containing compounds, especially aniline or pyridine or aromatic carboxylic acids.
- the phosphating mentioned takes place batchwise or continuously, in baths or spraying systems at room temperatures or above.
- aqueous solutions or slurries of reducing and / or passivating compounds are used, especially nitrites or hydrazine or hydrazine derivatives or hydroxylamine or hydroxylamine derivatives, chromates and natural and / or synthetic oils, optionally mixed with paraffin, stearates or lanolin.
- Shotcrete samples which were reinforced with steel reinforcement fibers (length 2 or 4 cm) treated according to the invention, showed a tensile strength which was about 4% higher than that of normal armored comparison samples; When the first-mentioned samples were sprayed on, there were no signs of corrosion on the steel fibers even after the samples had been stored outside for 6 months.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59602778T DE59602778D1 (de) | 1995-04-13 | 1996-03-19 | Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen |
EP96904249A EP0755462B1 (de) | 1995-04-13 | 1996-03-19 | Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen |
DK96904249T DK0755462T3 (da) | 1995-04-13 | 1996-03-19 | Korrosionsinhibering og forbedring af hæftningsegenskaberne af armeringsmetaller |
JP8530838A JPH10501849A (ja) | 1995-04-13 | 1996-03-19 | 補強金属の腐食防止および接合特性の改善 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01080/95-5 | 1995-04-13 | ||
CH01080/95A CH689307A5 (de) | 1995-04-13 | 1995-04-13 | Verfahren sowohl zur Korrosionsinhibierung, wie auch zur Verstärkung der Verbundeigenschaften von Armierungsmetallen. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996032522A1 true WO1996032522A1 (de) | 1996-10-17 |
Family
ID=4201995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1996/000244 WO1996032522A1 (de) | 1995-04-13 | 1996-03-19 | Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0755462B1 (de) |
JP (1) | JPH10501849A (de) |
AT (1) | ATE183553T1 (de) |
CH (1) | CH689307A5 (de) |
DE (1) | DE59602778D1 (de) |
DK (1) | DK0755462T3 (de) |
WO (1) | WO1996032522A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998031890A1 (en) * | 1997-01-16 | 1998-07-23 | Sam Ju Co., Ltd. | Method of applying adhesive anti-rust paints on steel pipes and reinforcing rods |
WO2001071061A1 (fr) * | 2000-03-24 | 2001-09-27 | Nissin Chemical Co., Ltd | Agent anticorrosion pour acier inoxydable et procede de traitement anticorrosion de l'acier inoxydable |
WO2011076273A1 (en) * | 2009-12-23 | 2011-06-30 | Vsl International Ag | Improved strand and method of producing the same |
CN103161182A (zh) * | 2011-12-09 | 2013-06-19 | 彭道儒 | 混凝土钢筋磷化缓蚀法防腐新工艺 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5312526B2 (ja) * | 2011-06-13 | 2013-10-09 | 株式会社ピーエス三菱 | Pc緊張材の腐食抑制方法 |
CN104962935A (zh) * | 2015-06-13 | 2015-10-07 | 周彩球 | 一种铜合金酸洗钝化剂 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2992131A (en) * | 1957-03-21 | 1961-07-11 | Jenolite Ltd | Treatment of metal surfaces |
EP0095413A2 (de) * | 1982-05-21 | 1983-11-30 | Freyssinet International (Stup) | Vorspannhüllrohr und dessen Herstellungsverfahren |
EP0285593A1 (de) * | 1987-04-03 | 1988-10-05 | CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif | Verfahren zur Erhöhung des Korrosionswiderstandes eines gehärteten und selbstangelassenen Armierungsstahlstabes |
-
1995
- 1995-04-13 CH CH01080/95A patent/CH689307A5/de not_active IP Right Cessation
-
1996
- 1996-03-19 AT AT96904249T patent/ATE183553T1/de not_active IP Right Cessation
- 1996-03-19 JP JP8530838A patent/JPH10501849A/ja active Pending
- 1996-03-19 DE DE59602778T patent/DE59602778D1/de not_active Expired - Fee Related
- 1996-03-19 EP EP96904249A patent/EP0755462B1/de not_active Expired - Lifetime
- 1996-03-19 WO PCT/IB1996/000244 patent/WO1996032522A1/de active IP Right Grant
- 1996-03-19 DK DK96904249T patent/DK0755462T3/da active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2992131A (en) * | 1957-03-21 | 1961-07-11 | Jenolite Ltd | Treatment of metal surfaces |
EP0095413A2 (de) * | 1982-05-21 | 1983-11-30 | Freyssinet International (Stup) | Vorspannhüllrohr und dessen Herstellungsverfahren |
EP0285593A1 (de) * | 1987-04-03 | 1988-10-05 | CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif | Verfahren zur Erhöhung des Korrosionswiderstandes eines gehärteten und selbstangelassenen Armierungsstahlstabes |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 77, no. 22, 27 November 1972, Columbus, Ohio, US; abstract no. 143412, EXEL N.: "Anticorrosion coatings for steel in prestressed concrete" page 219; XP002003148 * |
CORROSION, vol. 20, no. 4, REUIL-MALMAISON (FR), pages 291 - 299 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998031890A1 (en) * | 1997-01-16 | 1998-07-23 | Sam Ju Co., Ltd. | Method of applying adhesive anti-rust paints on steel pipes and reinforcing rods |
WO2001071061A1 (fr) * | 2000-03-24 | 2001-09-27 | Nissin Chemical Co., Ltd | Agent anticorrosion pour acier inoxydable et procede de traitement anticorrosion de l'acier inoxydable |
WO2011076273A1 (en) * | 2009-12-23 | 2011-06-30 | Vsl International Ag | Improved strand and method of producing the same |
CN103161182A (zh) * | 2011-12-09 | 2013-06-19 | 彭道儒 | 混凝土钢筋磷化缓蚀法防腐新工艺 |
Also Published As
Publication number | Publication date |
---|---|
DE59602778D1 (de) | 1999-09-23 |
JPH10501849A (ja) | 1998-02-17 |
EP0755462A1 (de) | 1997-01-29 |
DK0755462T3 (da) | 2000-03-13 |
ATE183553T1 (de) | 1999-09-15 |
EP0755462B1 (de) | 1999-08-18 |
CH689307A5 (de) | 1999-02-15 |
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