EP0796951A1 - Foundation sealings - Google Patents
Foundation sealings Download PDFInfo
- Publication number
- EP0796951A1 EP0796951A1 EP97104351A EP97104351A EP0796951A1 EP 0796951 A1 EP0796951 A1 EP 0796951A1 EP 97104351 A EP97104351 A EP 97104351A EP 97104351 A EP97104351 A EP 97104351A EP 0796951 A1 EP0796951 A1 EP 0796951A1
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- EP
- European Patent Office
- Prior art keywords
- sealing
- concrete
- coating
- membrane
- adhesive
- 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.)
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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
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/004—Sealing liners
Definitions
- the invention relates to a sealing membrane with a coating on the concrete side for sealing non-watertight structures and a method for producing a sealing layer for sealing non-waterproof structures using sealing membranes with a coating on the concrete side.
- Building seals represent a particularly important part of civil engineering and are the subject of an entire set of standards.
- DIN 18195 specifically deals with the field of waterproofing of buildings, whereby a distinction is once again made between waterproofing against soil moisture (part 4), non-pressing water (part 5), water that presses from outside (part 6) and from inside (part 7) .
- the set of standards contains references to further standards for the waterproofing membrane, sealing materials, execution and test methods.
- sealing sheets and auxiliary materials form sealing layers, the seal being formed, depending on the application, by a sealing layer or a plurality of sealing layers glued to one another over the entire surface.
- a further serious disadvantage in the case of seals according to the prior art is that normally the sealing layers are inherently sealed, but as such are separated from the concrete surface of the building. If such sealing layers are damaged, there is a risk that water penetrating at the damaged point will be distributed over a large area over the joint between the sealing layer and the building. According to the prior art, there are also coated sealing sheets, the coating of which sticks to the surface of the building. However, full-surface gluing is only effective if the complicated processing instructions are strictly adhered to and cannot be checked, or only with great effort, to ensure that it works properly.
- the technical problem on which the invention is based is the creation of a seal in concrete structures which is absolutely underrunning, does not have to take into account the setting and drying times of the concrete and the materials used and is not very expensive to produce.
- the coated geomembrane according to the invention or the method for sealing with such a geomembrane has the advantage that significant time savings of generally at least 28 days can be achieved, significant reductions in weather dependency on the construction site and extensive quality assurance through an absolutely complete and underflow-proof connection of Concrete with the waterproofing membrane are given.
- the method is far less dependent on manual care, the importance of this aspect being made clear by the fact that, according to statistical surveys, around 45% of sealing defects and weak points are caused by technical defects in the technical execution.
- Another advantage is the fact that areas which according to the prior art were no longer accessible after concreting, or only with difficulty and therefore could no longer be sealed, can be sealed without problems using the method according to the invention.
- the applicability of the method according to the invention and the use of the sealing sheets according to the invention also in the precast concrete plant provide further significant advantages
- the method according to the invention makes it possible to produce a full-surface underflow-proof connection to the concrete by pouring fresh concrete onto the sealing sheet coated with a cold self-adhesive compound (KSK compound), the fresh concrete forming a waterproof connection with the KSK compound and that The weight of the concrete on top contributes to the densification and strengthening of this connection.
- KSK compound cold self-adhesive compound
- This coated web is previously laid out on the construction site at the location of the building to be erected or inserted into the casting mold in the precast plant.
- the insertion of the coated sealing sheet into a formwork or casting mold is not an unconditional requirement for using the method according to the invention, it can also take place outside.
- the invention does not depend on the weather either with regard to temperature or precipitation. If all the areas to be sealed are covered with the coated sealing membrane, fresh concrete is poured in according to the structure to be created.
- the surfaces to be sealed must be smooth.
- the use of the method according to the invention or the use of the sealing membranes according to the invention makes it possible to operate on the construction site in the production of precast concrete parts with fully connected other components on the construction site, to take this into account already during the shaping in the precast concrete factory and, generally, completely new applications and process technologies in concrete construction and to develop precast concrete parts.
- a sealing membrane according to the invention has the following structure, for example: 1.5 mm plastic sealing membrane PVC P, 0.8 mm KSK compound and 0.07 mm separating film.
- the 0.07 mm thick release film, made of PE, for example, serves as a protective film on the KSK compound and is intended to prevent contamination.
- the release film must be easily removable so that perfect processing is guaranteed.
- the process according to the invention places no demands on the processing temperature, rather it is possible at any temperature at which concrete is poured.
- the application temperature of a waterproofing membrane according to the invention or the waterproofing produced with it ranges from -30 ° C. to + 100 ° C.
- the waterproofing membrane to be coated can alternatively also be a bitumen membrane or a PE membrane.
- KSK compound is a mixture of soft bitumen, styrene-butadiene-styrene (SBS) and synthetic resins to stabilize the adhesive strength.
- SBS styrene-butadiene-styrene
- Such a mass has a density at 20 ° C of 0.95 - 1.00 g / ml, a softening point according to DIN 52011 from 110 ° C to 120 ° C and a needle penetration according to DIN 52010 of 60 - 70/10 mm.
- the water vapor permeability according to DIN 52615 is to be characterized by the following values: water vapor diffusion current density of 0.78 +/- 0.16 g / qm / d, ⁇ -value of 33275 +/- 6138, equivalent Air layer thickness of 26.6 +/- 4.9 m.
- the adhesive values of the coated webs are characterized by a peel strength at room temperature, a peel speed of 400 mm / min and a peel angle of 90 degrees on a steel substrate with an adhesive time of 15 min with a peel value of 8.5 +/- 1.5 N / cm and with an adhesive time of 24 hours with a peel value of 23.1 +/- 2.3 N / cm.
- the cold self-adhesive compound described here is self-adhesive at room temperature and waterproof.
- DIN 18195 State of the art According to the invention.
- method Part 4 Waterproofing against soil moisture 6.3.5 Sealing with plastic sealing sheets Concrete or mortar must have hardened, concrete must be dry. Fresh concrete connects directly to the waterproofing.
- Part 5 Seals against non-pressing water 5. Building requirements Surfaces must be flat and dry. Concrete directly on the waterproofing. 7.3 Sealing for high loads At least two layers of bitumen or plastic, one layer with a protective sheet or metal strips. Only one location.
- Part 6 Sealing against water pressing from the outside 5. structural requirements Surfaces must be flat and dry.
- the component is concreted, the drying and hardening, for example of the concrete, is waited for (28 days strength). After the formwork is removed , the concrete is reworked as much as possible, burrs in the concrete are removed, lead-through openings for the tensioning wires of the formwork are removed, any unevenness is compensated, etc.
- Whether the structure is one or two layers is based on DIN 18195, as are the tests. According to DIN 18195, sealing against pressurized water, for example, must always be carried out in two layers. Sealing work and also the tests can only be carried out with the conventional variant if there is a suitable work space.
- the seal is first laid, e.g. B. in the construction pit, and then the concrete base is poured onto the waterproofing.
- the KSK-coated geomembrane is pulled up around 30 cm at the sole edges, welded and checked. For example, all seam connections of the geomembranes are hot air welded, butt joints are additionally welded with strips.
- the sealing is therefore carried out simultaneously with the concreting; there is no need to wait for the concrete to harden and no post-treatment, etc. is required.
- the welding and testing of the seal in accordance with DIN 18195 is carried out before concreting.
- the seal in the precast plant can be placed in the molds, welded and checked. Then the wall parts are concreted so that the sealing is applied at the same time as the concreting.
- the walls are then set up at the construction site and the existing waterproofing of the sole is connected to the wall waterproofing.
- a very significant difference from the conventional variant is that sealing sheets with a self-adhesive layer are used here and the concrete is concreted directly onto this self-adhesive layer. This process creates a full-surface and underflow-proof connection between the concrete and the waterproofing.
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
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Abstract
Description
Die Erfindung betrifft eine Dichtungsbahn mit betonseitiger Beschichtung zur Abdichtung von nicht wasserdichten Bauwerken sowie ein Verfahren zur Herstellung einer Abdichtungslage zur Abdichtung von nicht wasserdichten Bauwerken unter Verwendung von Dichtungsbahnen mit betonseitiger Beschichtung.The invention relates to a sealing membrane with a coating on the concrete side for sealing non-watertight structures and a method for producing a sealing layer for sealing non-waterproof structures using sealing membranes with a coating on the concrete side.
Bauwerksabdichtungen stellen einen besonders wichtigen Teil des Bauingenieurwesens dar und sind Gegenstand eines ganzen Normenkomplexes. So behandelt beispielsweise die DIN 18195 speziell das Gebiet der Bauwerksabdichtungen, wobei noch einmal zwischen Abdichtungen gegen Bodenfeuchtigkeit (Teil 4), geben nichtdrückendes Wasser (Teil 5), gegen von außen (Teil 6) und von innen (Teil 7) drückendes Wasser unterschieden wird. Im Normenwerk befinden sich Hinweise auf weitere Normen für die Dichtungsbahnen, Dichtungsstoffe, Ausführungs- und Prüfverfahren. Auch für das Gebiet von Dach- und Brückenabdichtungen sind Normvorschriften vorhanden.Building seals represent a particularly important part of civil engineering and are the subject of an entire set of standards. For example, DIN 18195 specifically deals with the field of waterproofing of buildings, whereby a distinction is once again made between waterproofing against soil moisture (part 4), non-pressing water (part 5), water that presses from outside (part 6) and from inside (part 7) . The set of standards contains references to further standards for the waterproofing membrane, sealing materials, execution and test methods. There are also standard regulations for the area of roof and bridge seals.
Einen breiten Raum nimmt bei Bauwerksabdichtungen die Abdichtung mit Hilfe von Abdichtungsbahnen ein. Hierbei wird unterschieden zwischen dem Material, aus dem die Dichtungsbahnen als solche hergestellt sind, und den mit diesen Bahnen verwendeten Abdichtungs- und Hilfsstoffen. Dabei bilden die Dichtungsbahnen und/oder vollflächig verarbeitete Abdichtungsstoffe Abdichtungslagen, wobei je nach Anwendungsfall die Abdichtung durch eine Abdichtungslage oder mehrere vollflächig untereinander verklebte Abdichtungslagen gebildet wird.When using waterproofing for buildings, sealing with the help of waterproofing membranes takes up a lot of space. A distinction is made between the material from which the sealing sheets are made as such and the sealing and auxiliary materials used with these sheets. The sealing sheets and / or fully processed sealing materials form sealing layers, the seal being formed, depending on the application, by a sealing layer or a plurality of sealing layers glued to one another over the entire surface.
Bei der Abdichtung von Betonbauwerken sind nach dem Stand der Technik eine ganze Reihe sehr stark einschränkender Randbedingungen zu beachten. Hier ist einmal die Trocknungs- oder Abbindungszeit sowohl des Betons als auch der kalt- oder warmverarbeiteten Abdichtungsstoffe zu nennen, weil jedes einzelne Teilsystem nur dann weiterbearbeitet werden kann, wenn beispielsweise der Beton voll abgebunden hat, was normalerweise nach 28 Tagen der Fall ist, oder die heißverarbeiteten Abdichtungstoffe abgekühlt und durchgetrocknet bzw. die kaltverarbeiteten Abdichtungstoffe voll durchgetrocknet sind. Andernfalls besteht die Gefahr, daß die erforderlichen Materialeigenschaften nicht erreicht werden oder sich die Materialien gegenseitig negativ beeinflussen.According to the state of the art, a whole series of very restrictive boundary conditions must be observed when sealing concrete structures. The drying or setting time of both the concrete and the cold or hot processed waterproofing materials should be mentioned here because each individual subsystem can only be further processed if, for example, the concrete has fully set, which is normally the case after 28 days, or the hot-processed sealing materials have cooled and dried through or the cold-processed sealing materials have dried completely. Otherwise there is a risk that the required material properties will not be achieved or that the materials will negatively influence one another.
Ein weiterer gravierender Nachteil bei Abdichtungen gemäß dem Stand der Technik ist darin zu sehen, daß normalerweise die Abdichtungslagen zwar in sich dicht sind, jedoch als solche von der Betonoberfläche des Bauwerks getrennt sind. Werden solche Abdichtungslagen beschädigt, besteht die Gefahr, daß an der Schadstelle eindringendes Wasser sich über die Fuge zwischen Abdichtungslage und Bauwerk großflächig verteilt. Es gibt zwar nach dem Stand der Technik auch beschichtete Abdichtungsbahnen, deren Beschichtung mit der Bauwerksoberfläche verklebt. Eine vollflächige Verklebung ist jedoch nur bei striktester Einhaltung der komplizierten Verarbeitungsvorschriften wirksam und läßt sich nicht oder nur mit aller größtem Aufwand auf einwandfreie Wirkung kontrollieren.A further serious disadvantage in the case of seals according to the prior art is that normally the sealing layers are inherently sealed, but as such are separated from the concrete surface of the building. If such sealing layers are damaged, there is a risk that water penetrating at the damaged point will be distributed over a large area over the joint between the sealing layer and the building. According to the prior art, there are also coated sealing sheets, the coating of which sticks to the surface of the building. However, full-surface gluing is only effective if the complicated processing instructions are strictly adhered to and cannot be checked, or only with great effort, to ensure that it works properly.
Das der Erfindung zugrundeliegende technische Problem ist die Schaffung einer Abdichtung von Betonbauwerken, die absolut unterlaufsicher ist, nicht auf die Abbindungs- bzw. Trocknungszeiten des Betons und der verwendeten Stoffe Rücksicht nehmen muß und wenig aufwendig herzustellen ist.The technical problem on which the invention is based is the creation of a seal in concrete structures which is absolutely underrunning, does not have to take into account the setting and drying times of the concrete and the materials used and is not very expensive to produce.
Dieses Problem wird erfindungsgemäß bei der gattungsgemäßen Dichtungsbahn dadurch gelöst, daß die Beschichtung mit Frischbeton eine abdichtende Verbindung bildet bzw. durch ein gattungsgemäßes Verfahren, bei dem die beschichtete Dichtbahn mit dem frischen Beton des Bauwerks oder - teils unter Druck zusammengebracht wird, wobei die Beschichtung eine Klebemasse aufweist und die Klebemasse mit Frischbeton eine abdichtende Verbindung bildet.This problem is solved according to the invention in the generic sealing membrane in that the coating with fresh concrete forms a sealing connection or by a generic method in which the coated sealing membrane is brought together with the fresh concrete of the structure or - partly under pressure, the coating being a Has adhesive and the adhesive with fresh concrete forms a sealing connection.
Die erfindungsgemäße beschichtete Dichtungsbahn bzw. das Verfahren zur Abdichtung mit einer solchen Dichtungsbahn hat den Vorteil, daß bedeutende Zeitersparnisse von in der Regel mindestens 28 Tagen zu erzielen sind, deutliche Verminderungen der Witterungsabhängigkeit auf der Baustelle und eine weitestgehende Qualitätssicherung durch absolut vollflächige und unterlaufsichere Verbindung von Beton mit der Dichtungsbahn gegeben sind. Das Verfahren ist weit weniger von handwerklicher Sorgfalt abhängig, wobei die Bedeutung dieses Aspektes dadurch verdeutlicht wird, daß nach statistischen Erhebungen etwa 45 % der Abdichtungsfehler und -schwachstellen durch Handwerksfehler bei der technischen Ausführung verursacht werden.The coated geomembrane according to the invention or the method for sealing with such a geomembrane has the advantage that significant time savings of generally at least 28 days can be achieved, significant reductions in weather dependency on the construction site and extensive quality assurance through an absolutely complete and underflow-proof connection of Concrete with the waterproofing membrane are given. The method is far less dependent on manual care, the importance of this aspect being made clear by the fact that, according to statistical surveys, around 45% of sealing defects and weak points are caused by technical defects in the technical execution.
Ein weiterer Vorteil ist darin zu sehen, daß Bereiche, die nach dem Stand der Technik nach dem Betonieren überhaupt nicht mehr oder nur mit Schwierigkeiten zugänglich und damit auch nicht mehr abzudichten waren, nach dem erfindungsgemäßen Verfahren ohne Probleme abgedichtet werden können. Durch die Anwendbarkeit des erfindungsgemäßen Verfahrens bzw. den Einsatz der erfindungsgemäßen Dichtungsbahnen auch im Beton-Fertigteilwerk sind weitere erhebliche Vorteile gegebenAnother advantage is the fact that areas which according to the prior art were no longer accessible after concreting, or only with difficulty and therefore could no longer be sealed, can be sealed without problems using the method according to the invention. The applicability of the method according to the invention and the use of the sealing sheets according to the invention also in the precast concrete plant provide further significant advantages
Das erfindungsgemäße Verfahren ermöglicht es, eine vollflächige unterlaufsichere Verbindung mit dem Beton dadurch herzustellen, daß Frischbeton auf die betonseitig mit einer Kaltselbstklebe-Masse (KSK-Masse) beschichtete Dichtungsbahn gegossen wird, wobei der Frischbeton mit der KSK-Masse eine wasserdichte Verbindung bildet und das Gewicht des aufliegenden Betons zu einer Verdichtung und Stärkung dieser Verbindung beiträgt. Diese beschichtete Bahn wird auf der Baustelle an der Stelle des zu errichtenden Bauwerks vorher ausgelegt bzw. im Fertigteilwerk in die Gußform eingelegt. Dabei ist das Einlegen der beschichteten Dichtungsbahn in eine Schalung oder Gußform keine unbedingte Voraussetzung für Anwendung des erfindungsgemäßen Verfahrens, sie kann auch außerhalb erfolgen. Abhängigkeit von der Witterung ist für die Erfindung weder im Hinblick auf Temperatur noch auf Niederschläge gegeben. Sind alle abzudichtenden Stellen mit der beschichteten Dichtungsbahn ausgelegt, wird frischer Beton entsprechend dem zu erstellenden Bauwerk eingebracht.The method according to the invention makes it possible to produce a full-surface underflow-proof connection to the concrete by pouring fresh concrete onto the sealing sheet coated with a cold self-adhesive compound (KSK compound), the fresh concrete forming a waterproof connection with the KSK compound and that The weight of the concrete on top contributes to the densification and strengthening of this connection. This coated web is previously laid out on the construction site at the location of the building to be erected or inserted into the casting mold in the precast plant. The insertion of the coated sealing sheet into a formwork or casting mold is not an unconditional requirement for using the method according to the invention, it can also take place outside. The invention does not depend on the weather either with regard to temperature or precipitation. If all the areas to be sealed are covered with the coated sealing membrane, fresh concrete is poured in according to the structure to be created.
Es ist meistens davon die Rede, daß frischer Beton auf die betonseitig beschichteten Dichtungsbahnen gegossen wird. Dies ist die übliche und sinnvolle Vorgehensweise für die Fälle, in denen die Abdichtung unter der Bauwerkssohle oder seitlich am Bauwerk erfolgen soll. Es ist natürlich auch denkbar, die erfindungsgemäße Dichtungsbahn von oben auf den Frischbeton zu bringen. Dabei ist es dann vorteilhaft, wenn die Dichtungsbahn auf der vom Beton abgewandten Seite druckbeaufschlagt wird, zum Beispiel durch aufgeschütteten Sand oder Wasser oder sonst in irgendeiner Weise aufgebrachten Druck, damit die vom Frischbeton und der KSK-Masse gebildete Abdichtungslage zusätzlich verdichtet wird. Eine solche Arbeitsweise stellt einen Sonderfall der Anwendung dar.It is usually said that fresh concrete is poured onto the waterproofing membrane coated on the concrete side. This is the usual and sensible procedure for cases in which the seal is to be made under the base of the building or on the side of the building. It is of course also conceivable to bring the sealing membrane according to the invention onto the fresh concrete from above. It is then advantageous if the sealing membrane is pressurized on the side facing away from the concrete, for example by heaping up sand or water or in any other way applied pressure, so that the sealing layer formed by the fresh concrete and the KSK compound is additionally compacted. Such a way of working is a special case of application.
Nach dem Stand der Technik, bei dem üblicherweise die Abdichtung auf der oberen oder seitlichen Oberfläche des Bauwerks erfolgt, nachdem dieses völlig abgebunden und abgetrocknet ist, müssen die abzudichtenden Flächen glatt sein. Dazu ist es gegebenenfalls erforderlich, nach Entfernen der Schalung Grate zu entfernen, Unebenheiten auszugleichen oder mit anderen Maßnahmen die erforderliche glatte Oberfläche herzustellen. All dieser zusätzliche Aufwand entfällt beim erfindungsgemäßen Verfahren. Die Anwendung des erfindungsgemäßen Verfahrens bzw. der Einsatz der erfindungsgemäßen Dichtungsbahnen ermöglicht es, bei der Herstellung von Betonfertigteilen mit vollflächig verbundenen anderen Bauteilen auf der Baustelle zu operieren, dies bereits bei der Formgebung im Betonfertigteilwerk zu berücksichtigen und generell, völlig neue Anwendungen und Verfahrenstechniken beim Betonbau und bei Betonfertigteilen zu entwickeln.According to the state of the art, in which the sealing is usually carried out on the top or side surface of the building after it has completely set and dried, the surfaces to be sealed must be smooth. For this purpose, it may be necessary to remove burrs after the formwork has been removed, to compensate for unevenness or to produce the required smooth surface using other measures. All this additional effort is eliminated in the method according to the invention. The use of the method according to the invention or the use of the sealing membranes according to the invention makes it possible to operate on the construction site in the production of precast concrete parts with fully connected other components on the construction site, to take this into account already during the shaping in the precast concrete factory and, generally, completely new applications and process technologies in concrete construction and to develop precast concrete parts.
Eine erfindungsgemäße Dichtungsbahn hat beispielsweise folgenden Aufbau: 1,5 mm Kunststoffdichtungsbahn PVC P, 0,8 mm KSK-Masse und 0,07 mm Trennfolie. Die 0,07 mm dicke Trennfolie, beispielsweise aus PE, dient als Schutzfolie auf der KSK-Masse und soll eine Verschmutzung verhindern. Die Trennfolie muß leicht ablösbar sein, damit eine einwandfreie Verarbeitung gewährleistet ist. An die Verarbeitungstemperatur werden durch das erfindungsgemäße Verfahren keinerlei Anforderungen gestellt, sie ist vielmehr bei jeder Temperatur möglich, bei der Beton vergossen wird. Die Anwendungstemperatur einer erfindungsgemäßen Abdichtungsbahn bzw. der damit hergestellten Abdichtung reicht von - 30° C bis + 100° C. Die zu beschichtende Dichtungsbahn kann alternativ auch eine Bitumenbahn oder eine PE-Bahn sein.A sealing membrane according to the invention has the following structure, for example: 1.5 mm plastic sealing membrane PVC P, 0.8 mm KSK compound and 0.07 mm separating film. The 0.07 mm thick release film, made of PE, for example, serves as a protective film on the KSK compound and is intended to prevent contamination. The release film must be easily removable so that perfect processing is guaranteed. The process according to the invention places no demands on the processing temperature, rather it is possible at any temperature at which concrete is poured. The application temperature of a waterproofing membrane according to the invention or the waterproofing produced with it ranges from -30 ° C. to + 100 ° C. The waterproofing membrane to be coated can alternatively also be a bitumen membrane or a PE membrane.
Ein Beispiel für eine KSK-Masse ist ein Gemisch aus Weichbitumen, Styrol-Butadien-Styrol (SBS) und synthetischen Harzen zur Klebkraftstabilisierung. Eine solche Masse hat eine Dichte bei 20° C von 0,95 - 1,00 g/ml, einen Erweichungspunkt nach DIN 52011 von 110° C bis 120° C und eine Nadelpenetration nach DIN 52010 von 60 - 70/10 mm. Bei einer Dicke der Masse von 0,8 mm ist die Wasserdampfdurchlässigkeit nach DIN 52615 durch folgenden Werte zu kennzeichnen: Wasserdampfdiffusionsstromdichte von 0,78 +/- 0,16 g/qm/d, µ-Wert von 33275 +/- 6138, äquivalente Luftschichtdicke von 26,6 +/- 4,9 m.An example of a KSK compound is a mixture of soft bitumen, styrene-butadiene-styrene (SBS) and synthetic resins to stabilize the adhesive strength. Such a mass has a density at 20 ° C of 0.95 - 1.00 g / ml, a softening point according to DIN 52011 from 110 ° C to 120 ° C and a needle penetration according to DIN 52010 of 60 - 70/10 mm. With a thickness of 0.8 mm, the water vapor permeability according to DIN 52615 is to be characterized by the following values: water vapor diffusion current density of 0.78 +/- 0.16 g / qm / d, µ-value of 33275 +/- 6138, equivalent Air layer thickness of 26.6 +/- 4.9 m.
Die Klebewerte der beschichteten Bahnen sind gekennzeichnet durch eine Schälfestigkeit bei Raumtemperatur, einer Schälgeschwindigkeit von 400 mm/min und einem Schälwinkel von 90 Grad auf Stahluntergrund bei einer Klebezeit von 15 min mit einem Schälwert von 8,5 +/- 1,5 N/cm und bei einer Klebezeit von 24 Stunden mit einem Schälwert von 23,1 +/- 2,3 N/cm. Die hier beschriebene Kaltselbstkleber-Masse ist selbstklebend bei Raumtemperatur und wasserfest.The adhesive values of the coated webs are characterized by a peel strength at room temperature, a peel speed of 400 mm / min and a peel angle of 90 degrees on a steel substrate with an adhesive time of 15 min with a peel value of 8.5 +/- 1.5 N / cm and with an adhesive time of 24 hours with a peel value of 23.1 +/- 2.3 N / cm. The cold self-adhesive compound described here is self-adhesive at room temperature and waterproof.
Die Dichtungsbahn wird durch folgenden technische Daten gekennzeichnet:
- Chemische Basis der Dichtungsbahn
- PVC-P
- Dicke der Dichtungsbahn
- 1,5 mm
- Reißdehnung der Dichtungsbahn
- > 350 %
- Reißfestigkeit der Dichtungsbahn
- > 18 N/qmm
- UV-Beständigkeit der Dichtungsbahn
- ist gegeben
- Bitumenverträglichkeit der Dichtungsbahn
- ist gegeben
- Baustoffklasse der Dichtungsbahn
- B2
- Wurzelfestigkeit nach FLL-Verfahren
- ist gegeben
- Mikrobenbeständigkeit
- ist gegeben
- Diffusionswiderstand
- SD ≤ 19 m
- Chemical basis of the waterproofing membrane
- PVC-P
- Thickness of the geomembrane
- 1.5 mm
- Elongation at break of the membrane
- > 350%
- Tear resistance of the waterproofing membrane
- > 18 N / sqmm
- UV resistance of the waterproofing membrane
- is given
- Bitumen compatibility of the waterproofing membrane
- is given
- Building material class of the waterproofing membrane
- B2
- Root strength according to the FLL method
- is given
- Resistance to microbes
- is given
- Diffusion resistance
- S D ≤ 19 m
Durch nachfolgende Gegenüberstellung soll die Abdichtung nach DIN 18195 für die verschiedenen Feuchtigkeitsquellen durch den Vergleich einiger in der Norm vorgeschriebener Merkmale nach dem Stand der Technik mit solchen nach dem erfindungsgemäßen Verfahren verdeutlicht werden.
Nachfolgend wird noch einmal eine herkömmliche und eine erfindungsgemäße Abdichtung vergleichend beschrieben, damit die Unterschiede und die vorteilhaften Möglichkeiten der Erfindung plastisch vor Augen geführt werden.A conventional seal and a seal according to the invention will be described again in the following so that the differences and the advantageous possibilities of the invention are brought to mind.
Üblich ist bisher das nachträgliche Abdichten von bereits errichteten Baukörpern mittels einer Beschichtung, eines Aufstrichs oder mittels einer nachträglich aufgebrachten Abdichtung aus Bitumen- oder Kunststoffdichtungsbahnen.So far, it has been customary to subsequently seal previously erected structures by means of a coating, a spread or by means of a subsequently applied seal made of bitumen or plastic sealing sheets.
Das Bauteil wird betoniert, die Abtrocknung und Aushärtung, zum Beispiel des Betons, wird abgewartet (28 Tage-Festigkeit). Nachdem die Schalung entfernt ist, wird der Beton so weit wie möglich nachgearbeitet, Grate im Beton werden entfernt, Durchführungsöffnungen für die Spanndrähte der Schalungen werden entfernt, eventuelle Unebenheiten ausgelichen usw..The component is concreted, the drying and hardening, for example of the concrete, is waited for (28 days strength). After the formwork is removed , the concrete is reworked as much as possible, burrs in the concrete are removed, lead-through openings for the tensioning wires of the formwork are removed, any unevenness is compensated, etc.
Wenn diese Nacharbeiten abgeschlossen sind, kann die eigentliche Abdichtung erfolgen. Bei Abdichtungen mit Kunststoffdichtungsbahnen kann z. B. jetzt eine erste Schutzlage aufgebracht werden. Anschließend wird die eigentliche Abdichtungsschicht aufgebracht und verschweißt und geprüft und danach die zweite Schutzlage von außen aufgebracht.When this rework is complete, the actual sealing can take place. When sealing with plastic geomembranes z. B. now apply a first protective layer. The actual sealing layer is then applied and welded and checked, and then the second protective layer is applied from the outside.
Ob der Aufbau einlagig oder zweilagig erfolgt, richtet sich nach DIN 18195, ebenso die Prüfungen. Nach DIN 18195 müssen Abdichtungen gegen drückendes Wasser beispielsweise immer zweilagig ausgeführt werden. Abdichtungsarbeiten und auch die Prüfungen können bei der herkömmlichen Variante nur ausgeführt werden, wenn entsprechender Arbeitsraum vorhanden ist.Whether the structure is one or two layers is based on DIN 18195, as are the tests. According to DIN 18195, sealing against pressurized water, for example, must always be carried out in two layers. Sealing work and also the tests can only be carried out with the conventional variant if there is a suitable work space.
Im Gegensatz zu dem herkömmlichen Arbeitsablauf wird gemäß der Erfindung die Abdichtung zuerst verlegt, z. B. in der Baugrubensohle, und anschließend die Betonsohle auf die Abdichtung betoniert. Die KSK-beschichtete Dichtungsbahn wird an den Sohlenrändern etwa 30 cm hochgezogen, verschweißt und geprüft. Alle Nahtverbindungen der Dichtungsbahnen werden beispielsweise heißluftverschweißt, Stöße werden zusätzlich mit Streifen überschweißt. Die Abdichtung erfolgt also zeitgleich mit dem Betonieren; es braucht keine Aushärtung des Betons abgewartet zu werden und es sind keine Nachbehandlungen usw. nötig. Das Verschweißen und Prüfen der Abdichtung entsprechend der DIN 18195 erfolgt vor dem Betonieren.In contrast to the conventional workflow according to the invention, the seal is first laid, e.g. B. in the construction pit, and then the concrete base is poured onto the waterproofing. The KSK-coated geomembrane is pulled up around 30 cm at the sole edges, welded and checked. For example, all seam connections of the geomembranes are hot air welded, butt joints are additionally welded with strips. The sealing is therefore carried out simultaneously with the concreting; there is no need to wait for the concrete to harden and no post-treatment, etc. is required. The welding and testing of the seal in accordance with DIN 18195 is carried out before concreting.
Für den Wandbereich kann bei Verwendung von Fertigteilbautechnik die Abdichtung im Fertigteilwerk in die Gußformen eingelegt, verschweißt und geprüft werden. Anschließend werden die Wandteile betoniert, so daß die Abdichtung auch hier zeitgleich mit dem Betonieren aufgebracht ist.For the wall area, when using precast construction technology, the seal in the precast plant can be placed in the molds, welded and checked. Then the wall parts are concreted so that the sealing is applied at the same time as the concreting.
Auf der Baustelle werden die Wände anschließend aufgestellt und die vorhandene Abdichtung der Sohle mit der Wandabdichtung verbunden. Ein ganz wesentlicher Unterschied zu der herkömmlichen Variante besteht darin, daß hier Dichtungsbahnen mit einer Selbstklebeschicht verwendet werden und der Beton direkt auf diese Selbstklebeschicht betoniert wird. Bei diesem Vorgang entsteht eine vollflächige und unterlaufsichere Verbindung zwischen Beton und Abdichtung.The walls are then set up at the construction site and the existing waterproofing of the sole is connected to the wall waterproofing. A very significant difference from the conventional variant is that sealing sheets with a self-adhesive layer are used here and the concrete is concreted directly onto this self-adhesive layer. This process creates a full-surface and underflow-proof connection between the concrete and the waterproofing.
Im Gegensatz zu den Anforderungen der DIN 18195 wird hier immer nur eine einlagige Abdichtung eingebaut, da durch das neue Verfahren Handwerkerfehler minimiert und auch Witterungseinflüsse ausgeklammert werden. Selbst bei einer nachträglichen mechanischen Beschädigung bietet sich dem Wasser nur eine begrenzte Angriffsfläche, da das Abdichtungssystem unterlaufsicher ist.In contrast to the requirements of DIN 18195, only a single-layer seal is installed here, as the new process minimizes craftsman errors and also excludes weather influences. Even in the event of subsequent mechanical damage, the water has only a limited area of attack, since the sealing system is underflow-proof.
Claims (9)
dadurch gekennzeichnet, daß
die beschichtete Dichtungsbahn mit dem frischen Beton des Bauwerks oder- teils unter Druck zusammengebracht wird, wobei die Beschichtung eine Klebemasse aufweist und die Klebemasse mit Frischbeton eine abdichtende Verbindung bildet.Process for producing a sealing layer for sealing non-watertight structures using sealing sheets with a coating on the concrete side,
characterized in that
the coated sealing membrane is brought together with the fresh concrete of the building or part under pressure, the coating having an adhesive and the adhesive with fresh concrete forming a sealing connection.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19611297A DE19611297C2 (en) | 1996-03-22 | 1996-03-22 | Civil engineering waterproofing |
DE19611297 | 1996-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0796951A1 true EP0796951A1 (en) | 1997-09-24 |
EP0796951B1 EP0796951B1 (en) | 2003-11-19 |
Family
ID=7789068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97104351A Expired - Lifetime EP0796951B1 (en) | 1996-03-22 | 1997-03-14 | Foundation sealings |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0796951B1 (en) |
AT (1) | ATE254701T1 (en) |
DE (2) | DE19611297C2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003055828A1 (en) * | 2001-12-22 | 2003-07-10 | Henkel Kgaa | Method for coating a cement-containing molding piece |
WO2009049952A3 (en) * | 2007-10-10 | 2009-06-11 | Roland Wolf | Formwork element, method of producing a part of a building using such a formwork element, and part of a building produced thereby |
EP2093339A2 (en) | 2008-02-22 | 2009-08-26 | Ankaba Ankertechnik und Bauhandel AG | Device for attaching a seal to a formwork board |
DE102015118316A1 (en) * | 2015-07-31 | 2017-02-02 | Sb Bautechnik Gmbh | Composite element and manufacturing process |
EP3795552A1 (en) * | 2019-09-23 | 2021-03-24 | Thomas Zundel | Tight, stress-free concrete-steel connection |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102004040201A1 (en) | 2004-08-19 | 2006-03-02 | Roland Wolf | Building part, suitable prefabricated wall element and manufacturing process |
DE102007051490A1 (en) | 2007-10-27 | 2009-04-30 | Wolf, Roland | Formwork system for producing plate-shaped concrete building part e.g. wall, has sealing element running transverse to both sides of joint level in side strips which are provided for forming creep waterproof boundary surfaces with concrete |
DE102008048003A1 (en) | 2008-09-19 | 2010-03-25 | Roland Wolf | Method for manufacturing construction part for preparing heat-insulated structure and seal against water penetration, involves preparing heat insulating coating in wall mounting section after manufacturing baseplate |
DE102010007315A1 (en) | 2010-02-08 | 2011-08-11 | Roland Wolf GmbH, 89155 | Heat-insulated solid wall made of concrete or stone |
DE102010007284A1 (en) | 2010-02-08 | 2011-08-11 | Roland Wolf GmbH, 89155 | Cellar components for use in wall arrangement, have outer element provided with sealant at inner-side, and adjacent inner element formed as timber structure that includes stanchions, which are connected with lid element and covering plates |
DE102010007314A1 (en) | 2010-02-08 | 2011-08-11 | Roland Wolf GmbH, 89155 | Structural element for wall arrangement, has outer casing element which is provided with sealing unit at inner side, and inner casing element which is spaced apart from outer casing element |
DE102010007312A1 (en) | 2010-02-08 | 2011-08-11 | Roland Wolf GmbH, 89155 | building |
DE102010015832A1 (en) | 2010-04-20 | 2011-10-20 | H-Bau Technik Gmbh | Device for sealing construction joint between two concrete components, has sealing plate, adjusting unit for sealing plate and sealing compound, where sealing plate is adjusted by adjusting unit |
WO2012003958A2 (en) | 2010-07-06 | 2012-01-12 | Roland Wolf Gmbh | Built-in element |
DE102010026306A1 (en) | 2010-07-06 | 2012-01-12 | Roland Wolf Gmbh | Component e.g. basement wall, for use in building, has sealant provided between outer thermal insulation layer and concrete/stone layer, and incorporation element inserted into recess, where element has flange resting against sealant |
DE102011103830A1 (en) | 2011-03-21 | 2012-09-27 | Roland Wolf Gmbh | Built-in element for use in e.g. wall of building, has thermal insulation bonded with built-in element part, where thermal insulation is placed on circumference of element and anchoring unit is arranged in thermal insulation |
DE102011014526A1 (en) | 2011-03-18 | 2012-09-20 | Roland Wolf Gmbh | Rectangular or square shaped formwork element for placement on ground for assembling e.g. pump sumps on floor panel of building, has base plate and side walls connected to each other and manufactured from heat insulating material |
DE102014102616A1 (en) | 2013-03-04 | 2014-09-04 | Roland Wolf Gmbh | Formwork, particularly suburb mounted formwork, has space between inner molding form element and outer heat insulating layer, which is filled with fresh concrete and flat sealing layer towards side that faces molding form element |
DE202014103218U1 (en) | 2013-11-21 | 2014-07-23 | Roland Wolf Gmbh | Waterproof rear underfloor insulation for a building |
DE102014101949A1 (en) | 2014-02-17 | 2015-08-20 | Franken Systems Gmbh | Process for the waterproofing of buildings |
DE102016106464B4 (en) * | 2016-04-08 | 2021-07-15 | Icopal Danmark ApS | Method for sealing a building |
DE102020109909A1 (en) * | 2020-04-08 | 2021-10-14 | Leonhard Kurz Stiftung & Co. Kg | Process for the production of a decorated, mineral composite body, decorated, mineral composite body and the use of a multilayer film |
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DE2920658C2 (en) * | 1979-01-22 | 1986-03-27 | Deitermann Kg Chemiewerk, 4354 Datteln | Multi-layer, watertight seal for a mineral surface |
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1996
- 1996-03-22 DE DE19611297A patent/DE19611297C2/en not_active Expired - Lifetime
-
1997
- 1997-03-14 DE DE59711011T patent/DE59711011D1/en not_active Expired - Lifetime
- 1997-03-14 EP EP97104351A patent/EP0796951B1/en not_active Expired - Lifetime
- 1997-03-14 AT AT97104351T patent/ATE254701T1/en active
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US3642559A (en) * | 1970-02-20 | 1972-02-15 | William S Stokes | Membrane-lined structural panel |
FR2464291A1 (en) * | 1979-09-04 | 1981-03-06 | Materiaux Etancheite Pour Entr | Fusible adhesive compsn. for preparing sealing coatings - comprises heavy aromatic hydrocarbon and styrene! and isoprene! or butadiene! block copolymer |
US4775567A (en) * | 1986-10-24 | 1988-10-04 | Hyload Corporation | Waterproofing laminate |
EP0414423A1 (en) * | 1989-08-10 | 1991-02-27 | W.R. Grace & Co.-Conn. | Waterproofing membrane |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003055828A1 (en) * | 2001-12-22 | 2003-07-10 | Henkel Kgaa | Method for coating a cement-containing molding piece |
WO2009049952A3 (en) * | 2007-10-10 | 2009-06-11 | Roland Wolf | Formwork element, method of producing a part of a building using such a formwork element, and part of a building produced thereby |
EP2093339A2 (en) | 2008-02-22 | 2009-08-26 | Ankaba Ankertechnik und Bauhandel AG | Device for attaching a seal to a formwork board |
DE102015118316A1 (en) * | 2015-07-31 | 2017-02-02 | Sb Bautechnik Gmbh | Composite element and manufacturing process |
DE102015118316B4 (en) | 2015-07-31 | 2020-07-16 | Sb Bautechnik Gmbh | Composite element and manufacturing process |
EP3795552A1 (en) * | 2019-09-23 | 2021-03-24 | Thomas Zundel | Tight, stress-free concrete-steel connection |
Also Published As
Publication number | Publication date |
---|---|
DE59711011D1 (en) | 2003-12-24 |
EP0796951B1 (en) | 2003-11-19 |
ATE254701T1 (en) | 2003-12-15 |
DE19611297C2 (en) | 2001-11-08 |
DE19611297A1 (en) | 1997-09-25 |
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