MY136951A - Method for passivating steel in carbonated and/or chloride contaminated concrete. - Google Patents

Method for passivating steel in carbonated and/or chloride contaminated concrete.

Info

Publication number
MY136951A
MY136951A MYPI9300497A MY136951A MY 136951 A MY136951 A MY 136951A MY PI9300497 A MYPI9300497 A MY PI9300497A MY 136951 A MY136951 A MY 136951A
Authority
MY
Malaysia
Prior art keywords
steel
embedded
electro
concrete
carbonated
Prior art date
Application number
Inventor
John B Miller
Original Assignee
Fosroc International Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fosroc International Ltd filed Critical Fosroc International Ltd
Publication of MY136951A publication Critical patent/MY136951A/en

Links

Landscapes

  • Working Measures On Existing Buildindgs (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

AN ELECTRO-CHEMICAL PROCESS FOR REHABILITATING STELL REINFORCED CONCRETE, WHEREIN A DISTRIBUTED FLOW OF ELECTRICAL CURRENT IS ESTABLISHED BETWEEN INTERNALLY EMBEDDED REINFORCING STEEL, CONNECTED AS A CATHODE, AND AN EXTERNAL, DISTRIBUTED ELECTRODE, CONNECTED AS AN ANODE. CURRENT FLOW AT A RATE OF THE EMBEDDED REINFORCEMENT IS CONTINUED FOR A TIME SUFFICIENT TO PROVIDE A TOTAL CHARGE OF AT LEAST ABOUT 500 AMPERE - HOURS PER SQUARE METER OF SURFACE AREA OF THE EMBEDDED REINFORCEMENT. THIS RESULT IN STEEL WITH A CLEAN SURFACE, SURROUNDED BY CONCRETE WHICH IS CHLORIDE FREE AND HIGHLY ALKALINE. AFTER DISCONTINUANCE OF THE ELECTRO - CHEMICAL TREATMENT, THE EMBEDDED STEEL SLOWLY PASSIVATES BY FORMING A PROTECTIVE SURFACE OXIDE. THE PROCESS IS SIGNIFICANTLY MORE ECONOMICAL THAN KNOWN PROCEDURES, YET IS RELIABLY EFFECTIVE.
MYPI9300497 1992-03-23 1993-03-19 Method for passivating steel in carbonated and/or chloride contaminated concrete. MY136951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85497592A 1992-03-23 1992-03-23

Publications (1)

Publication Number Publication Date
MY136951A true MY136951A (en) 2008-12-31

Family

ID=25320030

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9300497 MY136951A (en) 1992-03-23 1993-03-19 Method for passivating steel in carbonated and/or chloride contaminated concrete.

Country Status (6)

Country Link
JP (1) JP2783957B2 (en)
CN (1) CN1094996C (en)
IL (1) IL104837A (en)
MY (1) MY136951A (en)
TW (1) TW222680B (en)
ZA (1) ZA931554B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6509694A (en) * 1993-04-15 1994-11-08 Norwegian Concrete Technologies A.S. Method for treating reinforced concrete and/or the reinforcement thereof
GB2277098A (en) * 1993-04-15 1994-10-19 John Bruce Miller Electrochemical process for adjusting the steel-to-concrete bond strength and improving the sealing of the steel-concrete interface
GB0001847D0 (en) * 2000-01-27 2000-03-22 Imperial College Process for the protection of reinforcement in reinforced concrete
JP4492103B2 (en) * 2002-11-25 2010-06-30 東洋製罐株式会社 Surface-treated metal material and surface treatment method thereof, resin-coated metal material, metal can, can lid
JP5080725B2 (en) * 2005-05-30 2012-11-21 株式会社富士ピー・エス Method for electrochemical desalination of concrete structures
AU2006348127B2 (en) * 2006-09-11 2012-05-31 Vsl International Ag Method and sensor for determining the passivating properties of a mixture containing at least two components, which are cement and water
JP6018467B2 (en) * 2012-09-20 2016-11-02 ショーボンド建設株式会社 Reference electrode and natural potential measurement method
CN106119859A (en) * 2016-08-10 2016-11-16 江苏溧阳建设集团有限公司 A kind of protecting reinforced concrete cathode device
CN106283072B (en) * 2016-09-22 2018-08-31 深圳大学 A kind of protecting reinforced concrete cathode method and apparatus of CFRP insertions anode
CN106283071B (en) * 2016-09-22 2018-08-31 深圳大学 A kind of protecting reinforced concrete cathode method and apparatus of CFRP anodes
CN106400030B (en) * 2016-10-26 2018-08-31 深圳大学 A kind of protecting reinforced concrete cathode device and method of CFRP anodes
JP7025461B2 (en) * 2020-01-29 2022-02-24 デンカ株式会社 Electrochemical treatment method and unit panel for electrodes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440605A (en) * 1981-02-13 1984-04-03 The Marine Resources Company Repair of reinforced concrete structures by mineral accretion
JPS61221434A (en) * 1985-03-27 1986-10-01 内田　欣一 Regeneration of superannuated reinforced concrete structure or building
US4832803A (en) * 1985-04-17 1989-05-23 Oystein Vennesland Removal of chlorides from concrete
JP2649090B2 (en) * 1989-09-06 1997-09-03 東急建設 株式会社 Desalination method for RC / SRC structure

Also Published As

Publication number Publication date
IL104837A (en) 1996-01-31
IL104837A0 (en) 1993-06-10
JPH07232976A (en) 1995-09-05
JP2783957B2 (en) 1998-08-06
CN1094996C (en) 2002-11-27
TW222680B (en) 1994-04-21
CN1077232A (en) 1993-10-13
ZA931554B (en) 1993-10-13

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