GB2539578A - Method and apparatus for reinforcement protection - Google Patents

Method and apparatus for reinforcement protection Download PDF

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Publication number
GB2539578A
GB2539578A GB1615016.1A GB201615016A GB2539578A GB 2539578 A GB2539578 A GB 2539578A GB 201615016 A GB201615016 A GB 201615016A GB 2539578 A GB2539578 A GB 2539578A
Authority
GB
United Kingdom
Prior art keywords
activator
sacrificial anode
anode
backfill
sacrificial
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.)
Granted
Application number
GB1615016.1A
Other versions
GB2539578B (en
GB201615016D0 (en
Inventor
Glass Gareth
Charles Roberts Adrian
Davison Nigel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E Chem Technologies Ltd
Original Assignee
E Chem Technologies 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 E Chem Technologies Ltd filed Critical E Chem Technologies Ltd
Publication of GB201615016D0 publication Critical patent/GB201615016D0/en
Publication of GB2539578A publication Critical patent/GB2539578A/en
Application granted granted Critical
Publication of GB2539578B publication Critical patent/GB2539578B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/26—Corrosion of reinforcement resistance
    • C04B2111/265—Cathodic protection of reinforced concrete structures
    • 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
    • C23F2213/22—Constructional parts or assemblies of the anodic or cathodic protection apparatus characterized by the ionic conductor, e.g. humectant, hydratant or backfill

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

 A method of using an activator in a compact discrete sacrificial anode assembly that is assembled within an anode cavity in concrete is described. The method includes providing a sacrificial anode, and an activator to activate the sacrificial anode, and a backfill to embed the sacrificial anode and the activator in an anode cavity in the concrete. The activator is provided as a discrete contained unit for dispersion through the backfill to surfaces of the sacrificial anode, and the unit at least in part separates the activator from any electrolyte in contact with the sacrificial anode. The activator is separated from the backfill prior to use. The advantages of this invention include limiting corrosion of the sacrificial metal element prior to use, containment of the health and safety risk presented by an activator, and providing a facility to control the quantity of activator installed in a sacrificial anode assembly. A surprising benefit results from a transient increase in the temperature of the assembly.
GB1615016.1A 2014-03-05 2015-03-04 Method and apparatus for reinforcement protection Active GB2539578B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201403892A GB201403892D0 (en) 2014-03-05 2014-03-05 Method and apparatus for reinforcement protection
PCT/GB2015/050623 WO2015132587A1 (en) 2014-03-05 2015-03-04 Method and apparatus for reinforcement protection

Publications (3)

Publication Number Publication Date
GB201615016D0 GB201615016D0 (en) 2016-10-19
GB2539578A true GB2539578A (en) 2016-12-21
GB2539578B GB2539578B (en) 2021-05-12

Family

ID=50490837

Family Applications (2)

Application Number Title Priority Date Filing Date
GB201403892A Ceased GB201403892D0 (en) 2014-03-05 2014-03-05 Method and apparatus for reinforcement protection
GB1615016.1A Active GB2539578B (en) 2014-03-05 2015-03-04 Method and apparatus for reinforcement protection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB201403892A Ceased GB201403892D0 (en) 2014-03-05 2014-03-05 Method and apparatus for reinforcement protection

Country Status (2)

Country Link
GB (2) GB201403892D0 (en)
WO (1) WO2015132587A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590149A (en) * 2019-09-27 2021-06-23 E Chem Tech Ltd Protected reinforced concrete structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5292411A (en) * 1990-09-07 1994-03-08 Eltech Systems Corporation Method and apparatus for cathodically protecting reinforced concrete structures
US5968339A (en) * 1997-08-28 1999-10-19 Clear; Kenneth C. Cathodic protection system for reinforced concrete
US20100147703A1 (en) * 2004-04-29 2010-06-17 Gareth Kevin Glass Sacrificial anode and treatment of concrete
US20120111736A1 (en) * 2010-11-08 2012-05-10 E-Chem Technologies Limited Sacraficial anode assembly
US20140021039A1 (en) * 2012-07-19 2014-01-23 George Sergi Apparatus for Cathodic Protection System Using an Impressed Current Anode and a Sacrificial Anode
WO2014020017A1 (en) * 2012-07-30 2014-02-06 Construction Research & Technology Gmbh Galvanic anode and method of corrosion protection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5292411A (en) * 1990-09-07 1994-03-08 Eltech Systems Corporation Method and apparatus for cathodically protecting reinforced concrete structures
US5968339A (en) * 1997-08-28 1999-10-19 Clear; Kenneth C. Cathodic protection system for reinforced concrete
US20100147703A1 (en) * 2004-04-29 2010-06-17 Gareth Kevin Glass Sacrificial anode and treatment of concrete
US20120111736A1 (en) * 2010-11-08 2012-05-10 E-Chem Technologies Limited Sacraficial anode assembly
US20140021039A1 (en) * 2012-07-19 2014-01-23 George Sergi Apparatus for Cathodic Protection System Using an Impressed Current Anode and a Sacrificial Anode
WO2014020017A1 (en) * 2012-07-30 2014-02-06 Construction Research & Technology Gmbh Galvanic anode and method of corrosion protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590149A (en) * 2019-09-27 2021-06-23 E Chem Tech Ltd Protected reinforced concrete structure
GB2590149B (en) * 2019-09-27 2022-02-09 E Chem Tech Ltd Protected reinforced concrete structure

Also Published As

Publication number Publication date
GB201403892D0 (en) 2014-04-16
GB2539578B (en) 2021-05-12
WO2015132587A1 (en) 2015-09-11
GB201615016D0 (en) 2016-10-19

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