EP0644300A2 - Méthode d'assèchement de planchers - Google Patents

Méthode d'assèchement de planchers Download PDF

Info

Publication number
EP0644300A2
EP0644300A2 EP94810443A EP94810443A EP0644300A2 EP 0644300 A2 EP0644300 A2 EP 0644300A2 EP 94810443 A EP94810443 A EP 94810443A EP 94810443 A EP94810443 A EP 94810443A EP 0644300 A2 EP0644300 A2 EP 0644300A2
Authority
EP
European Patent Office
Prior art keywords
drying
room
water damage
corner
measured
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
EP94810443A
Other languages
German (de)
English (en)
Other versions
EP0644300A3 (fr
EP0644300B1 (fr
Inventor
Kurt Heim
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
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0644300A2 publication Critical patent/EP0644300A2/fr
Publication of EP0644300A3 publication Critical patent/EP0644300A3/fr
Application granted granted Critical
Publication of EP0644300B1 publication Critical patent/EP0644300B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • E04B1/7092—Temporary mechanical ventilation of damp layers, e.g. insulation of a floating floor

Definitions

  • the present invention relates to a method for the controlled execution of drying of water damage in a multi-layer building floor.
  • Water damage in building floors is caused by a wide variety of causes: water pipes in the room floor have leaks, water has penetrated from outside in the water damage area or the water damage has been caused by construction damage, for example if the concrete floor has dried out insufficiently before the remaining layers of the multilayer floor are installed .
  • the damage is difficult to locate. If at all, localization is only possible by destroying a section of the ground.
  • These floors usually consist of a concrete layer, over which an insulation layer is arranged, which in turn is covered by a film. The screed to which the floor covering is applied is then applied over the film.
  • a hole is drilled at an arbitrarily determined location in the ground, through which compressed air with a known moisture content is blown.
  • the moisture of the outflowing air is measured.
  • the difference in moisture content should provide information about the degree of evaporation or, if no evaporation can be determined, about the moisture content in the area of the floor structure through which air flows.
  • This type of measurement harbors several sources of error.
  • the measuring air can, for example, take a dry path through the various layers of the ground and thus not come into contact with the damaged area. This is made possible in particular by the fact that the position of the probe hole in the ground is arbitrary is fixed and can therefore be placed in an unfavorable place.
  • a material sample is taken from the soil, weighed, dried and then the moisture content is determined based on the weight loss.
  • the location of the sampling is just as arbitrary as the location of the probing hole.
  • the determination of the moisture content is therefore subject to errors. Both, as well as all other methods, can therefore only provide a presumably incorrect rough estimate of the water damage. They do not provide a simple overview of the progress of drying or the water content in the soil structure. All known and recognized methods are also not reproducible because they destroy the material. A precise damage plan or, for example, a location of a leak cannot be created with it. However, this also means that it is not possible to carry out targeted and controllable drying.
  • the drying devices are not used optimally and the time required for the renovation is extended for safety reasons far beyond the actually required duration.
  • the methods are therefore only used to determine the existence of water damage and after the drying process to check or prove that the damage has been remedied.
  • the most meaningful methods are material-destroying and not reproducible and the non-destructive ones Measurement methods do not provide information about the water volume in the soil structure.
  • a neutron probe serves as the measuring device. This probe radiates neutrons with high kinetic energy into the material. The fast neutrons are slowed down by light atomic nuclei, especially hydrogen nuclei and partially reflected back to the measuring device. The measuring device detects the reflected, slow neutrons and assigns them to a count. This count value provides information about the moisture content of the material bombarded with neutrons. The number of reflected neutrons strongly depends on the construction and the composition of the material. Therefore, meaningful measurements can only be carried out if the count can be compared with a calibration curve of the same material structure. In the case of building floors, however, such a comparison is difficult since such calibration curves are often not available due to the diversity of the multi-layer floors. For this reason, this method has so far only been used for leak detection on flat roofs.
  • the location of the measurement or sampling is arbitrary. However, one rule is followed by everyone: the location should be at least 25 cm from each side wall. The generally hydrophilic structure of the side walls sucks what is in the floor Water. For this reason, experts are of the opinion that measurements in peripheral and corner areas lead to a great distortion of reality.
  • the method according to the invention uses a neutron probe described above to prepare a damage analysis before the drying process or at least to determine the most impaired corner of the room.
  • the devices required for drying can be optimally used in terms of space.
  • the optimal measures for the special case of damage can be taken and the pressure or vacuum holes ideally placed.
  • the moisture level of the floor structure is measured at at least one of the measuring points at regular intervals. This makes it clear whether relevant drying progress has been achieved since the last measurement has been. The time for stopping the measurement can thus be specifically determined for each case of damage. This shortens the drying times to what is actually required.
  • the method according to the invention can immediately determine whether the cause of the damage has already been remedied or whether, for example, a line continues to leak.
  • a special feature of the method is that the measurements are carried out in the corners, close to the side walls, contrary to the common technical opinion, where the most meaningful measurements are obtained at these points. The highest moisture content is normally to be expected at these points.
  • the building floors to be renovated are mostly floating floors.
  • the method according to the invention uses a neutron probe to determine the moisture content of the building floor. Instead of a calibration curve, a reference value is determined using this measuring device, which is the normal state of the present soil to be examined. This reference value is determined by carrying out a measurement in a room without water damage but with the same multilayer structure of the floor. This room can be, for example, a neighboring room or a room above the damaged room. Instead of this reference measurement, if the structure is known, a reference value measured at an earlier point in time and originating from another damage event can also be used.
  • the extent of the damage is then determined in the room with water damage.
  • a moisture measurement is carried out using the neutron probe.
  • the measured values are obtained in an arbitrary unit.
  • a numerical example can be seen in FIG. 1.
  • the corner a with the highest measuring point is now defined as the monitoring point.
  • further points in the room can be measured.
  • a network of measuring points m, p is preferably defined, on the basis of which a damage plan is drawn up. Such a plan is shown in Figure 1.
  • the procedure for drying the floor is decided based on the damage plan or the moisture distribution in the corners of the room.
  • the measured values are provided with a material-dependent index.
  • Known methods and equipment are used to effectively dry the floor.
  • One method is to blow in dry compressed air. This method is used when a damage plan has been drawn up, i.e. the moisture distribution in the soil is approximately known.
  • p drying holes are drilled in the closest, still dry places.
  • a hole is also drilled in the wettest corner a. Dry compressed air is now blown through the holes in the dry places, this air penetrates the floor, absorbs moisture and emerges as moist air through the hole in the wettest corner.
  • the location of the drying well is defined by the damage plan.
  • Another, as yet little-known method is to extract the moist air in the ground. Dry air then flows through the cracks between the floor and side walls into the various layers of the floor. This method also dries a hole. This is positioned at the wettest corner a. The moist air is now extracted through this drying hole.
  • This extraction method has the enormous advantage that the wet air is removed in a targeted manner and the existing moist air is not distributed in undefined directions, for example under a facing with an insulating layer or in cavities. This is the risk with the pressure drying process.
  • further measurements are carried out with the neutron probe during the drying process. These measurements are carried out at the monitoring point, i.e. at the most humid corner a or at the most humid measuring point after the index correction. Further control measurements at additional measuring points are possible. All measurements take place at approximately the same time intervals.
  • the measured values are compared with the reference value, which corresponds to a dry room. If the measured value corresponds approximately to the reference value or if no further drying progress is determined, the drying process is stopped.
  • the tolerance value for the comparison of the measured value with the reference value is approximately 10%.
  • a measurement curve is created as a function of time. This serves as a control for the progress of drying and for statistical purposes.
  • the shape of the measurement curve depends on the drying method used. Two typical Examples are shown in FIG. 2.
  • the dashed line corresponds to the reference value R.
  • the x-axis corresponds to the time axis in weeks, the y-axis to the measured moisture content in an arbitrary unit. If the drying is carried out by suction, the moisture content in the area of the wettest corner drops very quickly in the first few days and then approaches the reference value R asymptotically.
  • the curve S corresponds to a hyperbola.
  • the drying process is ended. In the example shown, this is the case after approximately 3 weeks since the beginning of the drying process. However, if the drying is carried out using bubbles, there is hardly any change in the first few days. After that, however, the moisture content drops more until it approaches the reference value R asymptotically.
  • the curve is designated B in FIG. 2. The criterion for ending the drying process is the same as for the suction process.
  • the creation of the measurement curve as well as the observation of the spreading area are important aids for the control of the drying. If a deviation from the measured value to be expected is found, the cause must be sought and rectified. If, for example, the moisture content hardly decreases, it can safely be assumed that either the measures have not been carried out properly, the cause of the damage has not yet been remedied, or there is an unknown material change in the floor structure. A pipe laid in the ground is still running or water is still seeping in from the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Drying Of Solid Materials (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
EP94810443A 1993-08-18 1994-07-26 Méthode d'assèchement de planchers Expired - Lifetime EP0644300B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2463/93A CH685310A5 (de) 1993-08-18 1993-08-18 Verfahren zur Trocknung von Raumböden.
CH2463/93 1993-08-18

Publications (3)

Publication Number Publication Date
EP0644300A2 true EP0644300A2 (fr) 1995-03-22
EP0644300A3 EP0644300A3 (fr) 1995-07-12
EP0644300B1 EP0644300B1 (fr) 1998-11-25

Family

ID=4234387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810443A Expired - Lifetime EP0644300B1 (fr) 1993-08-18 1994-07-26 Méthode d'assèchement de planchers

Country Status (5)

Country Link
EP (1) EP0644300B1 (fr)
AT (1) ATE173784T1 (fr)
CH (1) CH685310A5 (fr)
DE (1) DE59407333D1 (fr)
DK (1) DK0644300T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011358A1 (fr) * 1995-09-20 1997-03-27 Institutt For Energiteknikk Mesure de la teneur en humidite du bois

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019767B4 (de) * 2012-10-09 2015-02-19 Bernhard Olliges Vorrichtung zum Trocknen von Feuchtigkeitsschäden
DE102012019766B4 (de) * 2012-10-09 2014-07-10 Bernhard Olliges Vorrichtung zum Trocknen von Feuchtigkeitsschäden und Verfahren zur Trocknung eines Bodenbelages mit einer derartigen Vorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1598962A1 (de) * 1962-06-20 1970-10-22 Rheinische Kalksteinwerke Anordnung zur Bestimmung der Feuchtigkeit mit Neutronen
SE435946B (sv) * 1982-11-08 1984-10-29 Bengt Gustav Adolf E Kullberg Sett och anordning for torkning av ett fukt- och vattenskadat golvberlag
JPS6029645A (ja) * 1983-07-27 1985-02-15 Hitachi Ltd 中性子水分計
JPS60249041A (ja) * 1984-05-24 1985-12-09 Tokyo Gas Co Ltd 管やタンク等の壁の検査装置
US5155924A (en) * 1991-01-02 1992-10-20 Smith Terry C Reconfigurable dryer system for water-damaged floors and walls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011358A1 (fr) * 1995-09-20 1997-03-27 Institutt For Energiteknikk Mesure de la teneur en humidite du bois

Also Published As

Publication number Publication date
EP0644300A3 (fr) 1995-07-12
CH685310A5 (de) 1995-05-31
EP0644300B1 (fr) 1998-11-25
ATE173784T1 (de) 1998-12-15
DK0644300T3 (da) 1999-08-09
DE59407333D1 (de) 1999-01-07

Similar Documents

Publication Publication Date Title
EP2699901B1 (fr) Mesure de l'humidité de sols constitués de béton
DE19629745A1 (de) Vorrichtung sowie Verfahren zur Bestimmung von Bodeneigenschaften
DE2621223A1 (de) Verfahren zur ultraschalluntersuchung von gegenstaenden
DE102009027807A1 (de) Detektionsverfahren und Detektionsvorrichtung zum Detektieren von Kernschäden und Ablösungen in Sandwichstrukturen
EP0644300A2 (fr) Méthode d'assèchement de planchers
EP3833950B1 (fr) Dispositif et procédé pour détecter une fuite
DE102014215727A1 (de) Verfahren zur Überwachung des Betriebszustands eines Oberflächen-Inspektionssystems zum Nachweis von Defekten auf der Oberfläche von Halbleiterscheiben
EP1302831B1 (fr) Méthode et système pour détecter le risque d'une formation de moisissure
DE102017116038A1 (de) Vorrichtung zur Früherkennung und zur Verringerung von durch Rohrundichtigkeiten bedingten Wasserschäden oder von sonstiger Feuchtigkeit in Gebäuden
DE3409453C2 (de) Verfahren zur zerstörungsfreien Bestimmung des Feuchtigkeitsgehalts von Körpern aus festen, porösen Materialien
EP0901626B1 (fr) Procede et dispositif pour la mesure de l'humidite dans les materiaux de construction
EP3933137A1 (fr) Natte destinée à la création d'un capteur de localisation de fuite, capteur, appareil de surveillance, zone de construction et procédé de fabrication et d'utilisation d'un tel capteur
EP3447476B1 (fr) Procédé de détermination de l'humidité superficielle et dispositif de mesure pour le procédé
EP3771907B1 (fr) Procédé de détermination de la teneur en humidité du béton et de la chape
EP3569770B1 (fr) Procédé d'investigation de la capacité des pieux entournés
EP1355148A1 (fr) Procédure pour la détection des défectuosités, telles que fêlures ou bords chanfreinés sur la surface de planches de bois
EP0082172A1 (fr) Procede et dispositif de surveillance en continu d'une installation contenant un fluide
DE102023104478A1 (de) Feuchtigkeitssensor und Verfahren zum Bestimmen einer Feuchtigkeitsmenge
Lorenz Durability of double shell tunnels focusing on sheet membranes/Dauerhaftigkeit von zweischaligen Tunnelbauwerken mit dem Fokus auf die Kunststoffabdichtung
DE102006009447B4 (de) Verfahren zur Diagnostik von Tragwerken in baulichen Anlagen
DE10318145B3 (de) Vorrichtung, Meßgerät und Verfahren zur Feuchtemessung von Baustoffen, insbesondere von Estrichen
DE69705801T2 (de) Verfahren zur Oberflächenbehandlung und bei dem Verfahren verwendbare Messmethode
DE2917061C2 (de) Plattenförmige Heiz- und/oder Kühleinheit
DE102023116665A1 (de) Verfahren und Vorrichtung zum Herstellen von Elektroden für Batteriezellen
DE202020002426U1 (de) Vorrichtung zum Sensieren und/oder Signalisieren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK FR LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK FR LI NL SE

17P Request for examination filed

Effective date: 19951208

17Q First examination report despatched

Effective date: 19970603

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK FR LI NL SE

REF Corresponds to:

Ref document number: 173784

Country of ref document: AT

Date of ref document: 19981215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSBUERO FELDMANN AG

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59407333

Country of ref document: DE

Date of ref document: 19990107

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20070713

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: HEIM, KURT

Free format text: HEIM, KURT#FELDSTRASSE 32#CH-3855 BRIENZ (CH) -TRANSFER TO- HEIM, KURT#FELDSTRASSE 32#CH-3855 BRIENZ (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070712

Year of fee payment: 14

Ref country code: NL

Payment date: 20070716

Year of fee payment: 14

Ref country code: BE

Payment date: 20070802

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070710

Year of fee payment: 14

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20090201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20090715

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080727

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100726

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110722

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59407333

Country of ref document: DE

Effective date: 20130201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20131028

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL