FR3084674B1 - ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED - Google Patents

ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED Download PDF

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Publication number
FR3084674B1
FR3084674B1 FR1857178A FR1857178A FR3084674B1 FR 3084674 B1 FR3084674 B1 FR 3084674B1 FR 1857178 A FR1857178 A FR 1857178A FR 1857178 A FR1857178 A FR 1857178A FR 3084674 B1 FR3084674 B1 FR 3084674B1
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France
Prior art keywords
buried
anode
space
buried metal
metal structure
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Active
Application number
FR1857178A
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French (fr)
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FR3084674A1 (en
Inventor
Hugues Massoutier
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Travaux Souterrains Et Maintenance
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Travaux Souterrains Et Maintenance
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Priority to FR1857178A priority Critical patent/FR3084674B1/en
Publication of FR3084674A1 publication Critical patent/FR3084674A1/en
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Publication of FR3084674B1 publication Critical patent/FR3084674B1/en
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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
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/16—Electrodes characterised by the combination of the structure and the material
    • 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
    • C04B28/04—Portland cements
    • 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
    • C04B28/08—Slag cements
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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

Abstract

L'invention concerne un procédé de protection anticorrosion d'une partie (30) métallique enterrée d'une structure, dite structure (1) enterrée, au moins en partie enterrée, dans lequel : - on creuse une cavité (2) souterraine débouchant à l'air et s'étendant à distance de la partie (30 enterrée de la structure (1) métallique ; - dans la cavité (2) souterraine, on dispose une pièce, dite anode (3), en au moins un matériau conducteur électrique en ménageant dans cette cavité (2) un espace (4) entre ladite anode (3) et au moins une partie de paroi (5) de la cavité (2) souterraine, puis ; - on prépare un coulis (6) hydraulique durcissable par mélange d'eau, de laitier de haut fourneau, de clinker Portland, de bentonite et de poussier de coke ; - on introduit le coulis (6) hydraulique dans ledit espace au contact de ladite anode et de la paroi de façon que le coulis (6) hydraulique comble au moins en partie ledit espace (4) et forme après durcissement dans cet espace (4) au contact de ladite anode (3) et de la paroi (5), un scellement (7) en matériau solide conducteur électrique formant un déversoir anodique avec ladite anode (3), et ; - on forme un circuit (8) électrique comprenant ledit déversoir anodique et la partie (30) métallique enterrée de ladite structure (1) enterrée de façon que la partie (30) métallique enterrée de ladite structure (1) enterrée présente une valeur de potentiel électrique déterminée par rapport à une électrode de référence Cu/CuSO4 inférieure à -850 mV.The invention relates to a method for the anti-corrosion protection of a buried metal part (30) of a structure, called a buried structure (1), at least partly buried, in which: - an underground cavity (2) opening out to air and extending away from the part (30 buried of the metal structure (1); - in the underground cavity (2), there is a part, called anode (3), made of at least one electrically conductive material by leaving in this cavity (2) a space (4) between said anode (3) and at least a wall part (5) of the underground cavity (2), then; - preparing a hydraulic grout (6) hardenable by mixture of water, blast furnace slag, Portland clinker, bentonite and coke dust; - the hydraulic grout (6) is introduced into said space in contact with said anode and the wall so that the grout ( 6) hydraulic at least partially fills said space (4) and forms after hardening in this space (4) in contact with said the anode (3) and the wall (5), a seal (7) of solid electrically conductive material forming an anode weir with said anode (3), and; - forming an electrical circuit (8) comprising said anode weir and the buried metal part (30) of said buried structure (1) so that the buried metal part (30) of said buried structure (1) has a potential value electrical determined with respect to a Cu / CuSO4 reference electrode less than -850 mV.

FR1857178A 2018-07-31 2018-07-31 ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED Active FR3084674B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1857178A FR3084674B1 (en) 2018-07-31 2018-07-31 ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1857178A FR3084674B1 (en) 2018-07-31 2018-07-31 ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED

Publications (2)

Publication Number Publication Date
FR3084674A1 FR3084674A1 (en) 2020-02-07
FR3084674B1 true FR3084674B1 (en) 2021-04-09

Family

ID=63896371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1857178A Active FR3084674B1 (en) 2018-07-31 2018-07-31 ANTI-CORROSION PROTECTION PROCESS FOR A BURIED METAL STRUCTURE AND BURIED METAL STRUCTURE THUS PROTECTED

Country Status (1)

Country Link
FR (1) FR3084674B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1262062A (en) * 1960-04-15 1961-05-26 Contre La Corrosion Soc Et Method and device for equalizing the distribution of the cathodic protection current of metallic structures
US5080773A (en) * 1990-05-11 1992-01-14 Cathodic Engineering Equipment Co., Inc. Ground electrode backfill
GB9102892D0 (en) * 1991-02-12 1991-03-27 Ici America Inc Reinforced concrete system
CA2359947C (en) * 1999-01-25 2006-06-27 Ebara Corporation Purification method and purification apparatus for contaminated object containing halogenated organic compounds
US7303014B2 (en) * 2004-10-26 2007-12-04 Halliburton Energy Services, Inc. Casing strings and methods of using such strings in subterranean cementing operations
FR2898178B1 (en) * 2006-03-06 2008-05-23 Eric Puech METHOD FOR INSTALLATION AND PROTECTION OF A BURIED DRIVE.
CA2573739A1 (en) * 2007-01-11 2008-07-11 Sae Inc. Deep well anodes for electrical grounding
CZ31795U1 (en) * 2018-04-06 2018-05-22 Technická univerzita v Liberci, Ústav pro pokročilé technologie a inovace A material for filling the annulus between the geothermal well wall and the geothermal probe pipeline, and an aqueous suspension of this material

Also Published As

Publication number Publication date
FR3084674A1 (en) 2020-02-07

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