EP0259196A1 - Verfahren zur Trockenlegung von Mauerwerk - Google Patents

Verfahren zur Trockenlegung von Mauerwerk Download PDF

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Publication number
EP0259196A1
EP0259196A1 EP87400969A EP87400969A EP0259196A1 EP 0259196 A1 EP0259196 A1 EP 0259196A1 EP 87400969 A EP87400969 A EP 87400969A EP 87400969 A EP87400969 A EP 87400969A EP 0259196 A1 EP0259196 A1 EP 0259196A1
Authority
EP
European Patent Office
Prior art keywords
phoresis
liquid
powder
masonry
electrodes
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
EP87400969A
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English (en)
French (fr)
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EP0259196B1 (de
Inventor
Jean-Marie Wagner
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0259196A1 publication Critical patent/EP0259196A1/de
Application granted granted Critical
Publication of EP0259196B1 publication Critical patent/EP0259196B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7007—Drying or keeping dry, e.g. by air vents by using electricity, e.g. electro-osmosis

Definitions

  • the present invention relates to improvements made to methods for drying masonry by electro-osmosis.
  • French patent number 1 508 872 filed on January 24, 1967 by Mr. Jakob TRABER describes a process for the drying of masonry by electro-osmosis according to which a series of electrodes are inserted in the masonry to be dried and are connected by an electrical conductor the end of which is connected to a voltage source and according to which, in parallel with osmosis, an electro-phoresis or an electro-injection is carried out, by using the inserted electrodes, which include a sealing or sealing product.
  • wall electrodes are put in place which are connected to electrodes implanted in the ground (electro-osmosis), but without an external current source, a direct filling is carried out under low pressure of the wells wall electrodes with liquid.
  • phoresis epitrophoresis
  • the wall electrodes are coated with a mortar of phoresis powder.
  • the removal of the voltage source is made possible by obtaining a sufficient potential difference between the wet wall and the wet ground due to the undiminished conductivity of the copper electrodes by the phoresis mortar.
  • This invention proposes to bring improvements to the process described above, giving very superior results, in particular because of a considerably higher comparative conductivity.
  • the subject of this invention is a method for dewatering masonry by electro-osmosis and electro-phoresis, which consists in placing, in masonry, wall electrodes connected to electrodes implanted in the ground, in carrying out a filling the wells of the wall electrodes with a phoresis liquid and, after total absorption thereof, coating the wall electrodes with a phoresis powder mortar, this process being characterized in that the phoresis liquid is a silica solution colloidal and in that the phoresis powder comprises in particular more than 15% by volume of graphite in the form of a wettable micronized powder.
  • the phoresis liquid used in the process which is the subject of this invention is therefore a colloidal silica solution taking care form of milky or slightly opalescent dispersions of silica particles, the specific surface of these particles, per gram of solution, being substantially 85 m2.
  • the dry matter content is 10% minimum and the pH at 20 'is 9.9.
  • the silica particles in suspension in the phoresis liquid migrate in the direction of the wall towards the ground and they agglomerate at the narrowed or bent parts of the masonry capillaries, thus constituting real plugs which will subsequently oppose any rise of water from the ground to the wall.
  • the phoresis liquid according to this invention has the remarkable characteristic of gelling at will (rigid gel) more or less long term, by modulation of the pH, this modulation being obtained by the addition of ionizable salts.
  • the variation of the gelation time as a function of the pH is shown.
  • the gelation time can be increased to 120 hours or more by raising the pH to 8.5. This will result in a very significant penetration of the phoresis liquid inside the wall to be dried.
  • This phoresis powder is essentially characterized by a conductivity considerably higher than that of the phoresis powders currently used.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Paints Or Removers (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
EP19870400969 1986-09-02 1987-04-27 Verfahren zur Trockenlegung von Mauerwerk Expired - Lifetime EP0259196B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8612324A FR2603318B1 (fr) 1986-09-02 1986-09-02 Perfectionnements apportes aux procedes d'assechement des maconneries
FR8612324 1986-09-02

Publications (2)

Publication Number Publication Date
EP0259196A1 true EP0259196A1 (de) 1988-03-09
EP0259196B1 EP0259196B1 (de) 1990-08-29

Family

ID=9338638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870400969 Expired - Lifetime EP0259196B1 (de) 1986-09-02 1987-04-27 Verfahren zur Trockenlegung von Mauerwerk

Country Status (6)

Country Link
EP (1) EP0259196B1 (de)
DE (2) DE3764591D1 (de)
FR (1) FR2603318B1 (de)
MA (1) MA20962A1 (de)
PT (1) PT84834B (de)
TN (1) TNSN87065A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736075A1 (fr) * 1995-06-30 1997-01-03 Stumpp Bernard Procede d'assechement et de consolidation de murs ou analogues, dispositif et lot pour la mise en oeuvre de ce procede
ES2208009A1 (es) * 2001-06-04 2004-06-01 Josep Pares Torrus Procedimiento para la desalinizacion, desecacion y refuerzo estructural de paredes, muros y bovedas.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH404149A (de) * 1962-06-02 1965-12-15 Jakob Traber Mauerentfeuchtung Verfahren zur Entfeuchtung und Versiegelung von Mauerwerk mittels Elektro-Osmose und Elektrophorese
FR1508872A (de) * 1966-01-26 1968-03-20
FR2365666A1 (fr) * 1976-09-28 1978-04-21 Delbecq Germaine Systeme automatique d'assechement electronique des batiments
FR2478164A2 (fr) * 1980-03-11 1981-09-18 Berrie Emile Perfectionnements aux appareils de sechage des murs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH404149A (de) * 1962-06-02 1965-12-15 Jakob Traber Mauerentfeuchtung Verfahren zur Entfeuchtung und Versiegelung von Mauerwerk mittels Elektro-Osmose und Elektrophorese
FR1508872A (de) * 1966-01-26 1968-03-20
FR2365666A1 (fr) * 1976-09-28 1978-04-21 Delbecq Germaine Systeme automatique d'assechement electronique des batiments
FR2478164A2 (fr) * 1980-03-11 1981-09-18 Berrie Emile Perfectionnements aux appareils de sechage des murs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736075A1 (fr) * 1995-06-30 1997-01-03 Stumpp Bernard Procede d'assechement et de consolidation de murs ou analogues, dispositif et lot pour la mise en oeuvre de ce procede
ES2208009A1 (es) * 2001-06-04 2004-06-01 Josep Pares Torrus Procedimiento para la desalinizacion, desecacion y refuerzo estructural de paredes, muros y bovedas.
ES2208009B1 (es) * 2001-06-04 2005-03-01 Josep Pares Torrus Procedimiento para la desalinizacion, desecacion y refuerzo estructural de paredes, muros y bovedas.

Also Published As

Publication number Publication date
PT84834B (pt) 1993-07-30
DE259196T1 (de) 1988-07-21
TNSN87065A1 (fr) 1990-01-01
MA20962A1 (fr) 1987-12-31
DE3764591D1 (de) 1990-10-04
FR2603318A1 (fr) 1988-03-04
EP0259196B1 (de) 1990-08-29
FR2603318B1 (fr) 1988-10-28
PT84834A (pt) 1988-10-14

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