EP0612365B1 - Verfahren und vorrichtung zum entfeuchten von mauern eines gebäudes - Google Patents

Verfahren und vorrichtung zum entfeuchten von mauern eines gebäudes Download PDF

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Publication number
EP0612365B1
EP0612365B1 EP93913122A EP93913122A EP0612365B1 EP 0612365 B1 EP0612365 B1 EP 0612365B1 EP 93913122 A EP93913122 A EP 93913122A EP 93913122 A EP93913122 A EP 93913122A EP 0612365 B1 EP0612365 B1 EP 0612365B1
Authority
EP
European Patent Office
Prior art keywords
walls
electrode
ground
wall
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.)
Expired - Lifetime
Application number
EP93913122A
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English (en)
French (fr)
Other versions
EP0612365A1 (de
Inventor
Roger +Di Gallois
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.)
BONNAL Marie
ORTLIEB Mathieu
Original Assignee
BONNAL Marie
ORTLIEB Mathieu
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 BONNAL Marie, ORTLIEB Mathieu filed Critical BONNAL Marie
Publication of EP0612365A1 publication Critical patent/EP0612365A1/de
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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 methods for the removal of the humidity of the walls of buildings in particular in the case of constructions old. It relates more particularly to the fight against lifts moisture from the soil.
  • a so-called “active” method which consists, as before, in implementing in damp walls, a series of electrodes at a low height from at ground level, as well as earth plugs in the ground. The difference is in the fact that a direct current source is provided to supply the installation. Also, the wall electrodes are connected to the positive pole of the current source and the earth point (s) are connected to the pole negative from this source.
  • a variant of this method has been described in document FR-A-1 583 464. It consists in introducing into the walls to be dried, two series of electrodes one above the other at predetermined distances, the electrodes being connected to each other by an electrical conductor for each of these series. The upper series is then connected to the positive pole of a direct current source and the lower series is connected to the negative pole. This variant eliminates the need for earth connections located in the ground.
  • the document FR-A-1 508 872 described the combination of method of drying by electro-osmosis with electrophoresis.
  • phoresis products are introduced into the recesses made in the walls to implant the electrodes.
  • the ions from the phoresis products migrate in the direction of displacement of water. These products are therefore entrained in the capillaries of walls which are thus closed.
  • the object of the invention is to provide a method for eliminating the humidity of the walls which is simple to implement, inexpensive and effective quickly and steadily over time.
  • the subject of the present invention is a method to combat the humidity of the walls of an implanted construction in terrestrial soil by permanently sealing cracks, consisting of establish an electrical circuit whose negative polarity is applied to the entire construction and whose positive polarity is applied in the soil in which said construction is implanted, characterized in that it further consists in applying the negative polarity above the ground level of way that the electric field produced between the two polarities propagates to the less in the part of the construction which is located at ground level to form a lasting barrier to the rise, by capillary action, of said moisture along the walls of the building.
  • the method according to the invention generally consists in subject the entire construction to be treated to the action of a field low intensity electric.
  • low number of electrodes is meant the implantation of a single electrode, or even two, three or four electrodes when it comes to tall buildings.
  • a single electrode is usually enough to, in a way, transform the giant electrode construction. This is the case described below.
  • FIG. 1 illustrates a device making it possible to implement the process according to the invention applied to a single-family house 5 in size average.
  • the electrode 10 is introduced into an exterior wall on the exterior side of the building but we can completely plan to insert it on the inside and even in a wall interior such as a cross wall, as explained below. In fact, we places the electrode in order to obtain a good distribution of the electric field created on the whole construction.
  • a recess 14 (see figure 2) in wall 12 at the chosen location and cover possibly the walls of this recess 14 with a conductive varnish based on graphite powder or any other product which improves the contact.
  • the electrode 10 consists, for example, of an expansion bolt or other conductive material such as copper.
  • Reliable result can be achieved with a conductive electrode about ten millimeters driven over two-thirds of the thickness of the wall in using a conductive varnish based on graphite powder as mentioned above.
  • the electrode 10 is placed at a height h relative to the level of the ground, about three meters.
  • an earth plug 16 is planted in the ground.
  • taking of earth 16 is advantageously placed at a distance d from the foot of the wall 12, of the order of a few tens of centimeters.
  • a direct current source 18 is provided (not represented in FIG. 1) to which the electrode 10 and the earth connection are connected 16, as shown in more detail in FIG. 2.
  • the electrode 10 is connected to the negative pole of the direct current source 18, by an electrical conductor 20 and the earth connection 16 at the positive pole of this source 18, by another electrical conductor 22.
  • a closed electrical circuit is thus established between the electrode 10, the earth 16, the DC source 18 and the wall 12.
  • It can be, for example, a mains supply with a, or even several, rechargeable battery, as shown in Figure 3.
  • This device has the advantage of being able to operate on the mains or on battery when there is an involuntary or voluntary power cut for example for dwellings which are not regularly occupied.
  • the direct current source 18 consists, by example, in commercially available 1.5 volt batteries.
  • 1.5 volt batteries For a medium-sized detached house, for example, two batteries are enough to autonomy of at least six months.
  • the primary source feed in this case a certain randomness and may be subject to discontinuities, provision is advantageously made for presence of a buffer storage battery.
  • the intensity of the current is chosen according to the importance of the construction to be treated and the material of the walls.
  • the walls are made of grinders assembled with a poor mortar, we apply a current higher intensity because the fine capillaries are more numerous than in the first case.
  • the vertical component of the established electric field is of the order of millivolt per meter at the base of the walls, whatever their nature. It should be noted that this vertical component is significantly less than that of the fields applied by electro-osmosis and / or electrophoresis methods.
  • the conductivity of the wall varies with its humidity according to the presence of underground springs, heavy rainfalls, etc., so we have a self-regulation of the current whose intensity increases with a humidity increases and decreases when it also decreases, for a relatively constant field.
  • the electrode is placed in a part of a wall supposed to be the most conductive.
  • Figures 4a and 4b illustrate the case where the wall 50 to receive the electrode 48, is made of concrete blocks, bricks, stones 52 or other elements materials connected to each other by a mortar or cement used joints to form the wall.
  • the electrode 48 is then preferably placed in one of the seals 54 connecting the elements 52.
  • FIGS 5 and 6 illustrate, for their part, the case of a construction 60 comprising a cross wall 62. Then an electrode 64 of preferably in the immediate vicinity of this wall 62 or even in the cross wall itself if it has a thickness greater than that of the exterior walls so to place themselves in the most massive part of the construction.
  • electrode 64 is introduced into an exterior wall 66 facing the cross wall 62. This allows to further improve the diffusion and distribution of the electric field.
  • the electrode 64 is placed at a height h ' about three meters.
  • an earth plug 68 is planted in the ground.
  • a direct current source is provided (not shown) of the aforementioned type to form a closed circuit with the wall 62, the electrode 64 and the earth electrode 68 similar to that shown diagrammatically in FIG. 2.
  • the vertical component of the electric field created is maximum at plumb with the electrode 64 (point A) and decreases as one moves away from it distant.

Landscapes

  • 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)
  • Building Environments (AREA)
  • Drying Of Gases (AREA)
  • Drying Of Solid Materials (AREA)

Claims (2)

  1. Verfahren zur Bekämpfung der Feuchtigkeit in den Mauern eines in den Erdboden eingelassenen Bauwerkes durch den dauerhaften Verschluß der Risse, das darin besteht, einen elektrischen Stromkreis herzustellen, dessen negativer Pol an der Konstruktion des Bauwerkes (5-60) anliegt und dessen positiver Pol an dem Erdboden anliegt, in dem sich dieses Bauwerk befindet (16-68), der zudem dadurch gekennzeichnet ist, daß der negative Pol oberhalb der Ebene des Erdbodens liegt, so daß sich das zwischen den beiden Polen entstehende elektrische Feld mindestens in dem Teil des Bauwerkes ausbreitet, der sich in der Höhe des Erdbodens befindet, um so eine dauerhafte Sperre für das durch die Kapillarität bewirkte Ansteigen der Feuchtigkeit über die Wände des Bauwerkes zu bilden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der negative Pol mindestens an einem Punkt (10-64) dieses Bauwerkes (5-60) und zwar an dessen massiven Teil mit der höchsten Leitfähigkeit (12-50-66) anliegt.
EP93913122A 1992-06-15 1993-06-14 Verfahren und vorrichtung zum entfeuchten von mauern eines gebäudes Expired - Lifetime EP0612365B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9207176 1992-06-15
FR9207176 1992-06-15
PCT/FR1993/000566 WO1993025773A1 (fr) 1992-06-15 1993-06-14 Procede et dispositif pour eliminer l'humidite des murs d'une construction

Publications (2)

Publication Number Publication Date
EP0612365A1 EP0612365A1 (de) 1994-08-31
EP0612365B1 true EP0612365B1 (de) 2001-02-28

Family

ID=9430714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93913122A Expired - Lifetime EP0612365B1 (de) 1992-06-15 1993-06-14 Verfahren und vorrichtung zum entfeuchten von mauern eines gebäudes

Country Status (4)

Country Link
EP (1) EP0612365B1 (de)
AT (1) ATE199427T1 (de)
DE (1) DE69329965D1 (de)
WO (1) WO1993025773A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523884A (en) * 1968-05-10 1970-08-11 Systron Donner Corp Method and apparatus for making wall structure impervious to moisture
DE1926381A1 (de) * 1968-11-08 1970-06-11 Erhart Garbade Verfahren zur elektroosmotischen Trocknung von Gebaeudeteilen mittels in uebereinanderliegenden waagerechten Mauerebenen angeordneten Elektroden
FR2317430A1 (fr) * 1975-07-08 1977-02-04 Berrie Emile Application sous controle automatique de l'electro-osmose
DD246334B1 (de) * 1985-12-30 1989-09-20 Bauakademie Ddr Verfahren zur entsalzung, trockenlegung und trockenenthaltung von mauerwerk
AT394409B (de) * 1989-05-30 1992-03-25 Steininger Karl Heinz Vorrichtung zur elektrokinetischen entsalzung von mauerwerken

Also Published As

Publication number Publication date
EP0612365A1 (de) 1994-08-31
WO1993025773A1 (fr) 1993-12-23
ATE199427T1 (de) 2001-03-15
DE69329965D1 (de) 2001-04-05

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