EP0038933B1 - Sealing of constructive works with thermoplastic sealing sheets - Google Patents
Sealing of constructive works with thermoplastic sealing sheets Download PDFInfo
- Publication number
- EP0038933B1 EP0038933B1 EP81102223A EP81102223A EP0038933B1 EP 0038933 B1 EP0038933 B1 EP 0038933B1 EP 81102223 A EP81102223 A EP 81102223A EP 81102223 A EP81102223 A EP 81102223A EP 0038933 B1 EP0038933 B1 EP 0038933B1
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- EP
- European Patent Office
- Prior art keywords
- plastics
- web
- impermeabilizing
- sealing
- protective layer
- 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
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- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 229920001169 thermoplastic Polymers 0.000 title 1
- 239000004416 thermosoftening plastic Substances 0.000 title 1
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 239000010410 layer Substances 0.000 claims abstract description 26
- 239000010426 asphalt Substances 0.000 claims abstract description 25
- 239000004753 textile Substances 0.000 claims abstract description 15
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 239000004567 concrete Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims abstract description 3
- 235000019592 roughness Nutrition 0.000 claims abstract 2
- 239000011521 glass Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 22
- 239000004744 fabric Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000011888 foil Substances 0.000 description 5
- 238000004078 waterproofing Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 241000543373 Sideroxylon foetidissimum Species 0.000 description 2
- 239000013521 mastic Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Definitions
- the invention relates to a seal made of concrete or the like, in particular bridges, road ramps or the like, with a plastic sealing membrane arranged on the surface of the building, which is mechanically anchored in the roughness of the building surface by pressing under heat and with a pavement applied thereon a top layer of cast or rolled asphalt and a protective layer arranged between the top layer and the plastic sealing membrane.
- the rheological behavior in the case of metal foils embedded in bitumen layers, above all the occurrence of the glass breaking point in all bituminas at low temperatures, as well as the slight vulnerability of the thin metal foils due to perforation when walking on, driving over, etc. are the cause of the failure of the seal in the long run.
- the occurrence of the glass breaking point in bitumen creates the finest capillaries into which de-icing salt solutions penetrate ever deeper into the bituminous top layer and ultimately land on the waterproofing.
- the elastomer film forms a strong fold when the mastic asphalt layer is applied directly, and furthermore an increased sliding action between the individual layers in the presence of paper intermediate layers.
- the invention has for its object to protect concrete, in particular reinforced concrete structures, such as bridges, road ramps, or the like. Against moisture in the building surface and to prevent rainwater and de-icing water from penetrating into the interior of the building and dynamic forces, in particular thrusting forces from vehicle traffic . To be transferred non-positively and as weather-independent as possible into the building structure.
- the sealing membrane should also be protected as far as possible against mechanical or other damage during the construction period.
- the invention achieves the object in that a composite of the plastic sealing membrane with a protective layer of a textile fabric made of glass fibers or the like that with the plastic, on the basis of which the plastic sealing membrane is produced, is soaked, is used.
- the textile fabric now acts on the one hand as a heat shield for the plastic sealing membrane against the heat from the subsequent hot asphalt layers to be applied, which have 240 ° C and more temperatures. This is especially true for plastic sheeting that is not that high are temperature resistant, important, such as. B. soft PVC geomembranes, in contrast to elastomer films such. B. based on butyl rubber.
- the textile fabric ensures good adhesive strength and good mechanical anchoring of the asphalt layers as well as the plastic sealing membrane, so that even with changing weather-related temperatures due to the dimensional stability given by the textile fabric itself, the necessary shear force transmission is guaranteed and maintained at these interfaces.
- the textile fabric prevents the formation of creases in the waterproofing membrane during the application and distribution of the hot asphalt layers, which is associated with considerable pressure, since it itself remains dimensionally stable and thus counteracts deformation of the waterproofing membrane, ie absorbs it. It is also surprising that the connection between the textile fabric and the waterproofing membrane is retained after the asphalt layers have been applied, ie no damage occurs as a result of the thermal load, and this also applies to soft PVC. The slide bearing effect due to heating, which is often observed with bituminous adhesive sealing sheets, is avoided with the invention.
- textile fabrics such as raw glass nonwovens, glass fiber mats or the like with a weight per unit area of 50 to 150 g / m 2 are preferably used.
- Particularly good adhesive strengths between the individual materials can be achieved according to the invention in that the textile fabric is impregnated with the plastic on the basis of which the plastic sealing membrane is produced.
- the invention uses bitumen-resistant sealing sheets based on soft PVC. Compared to other plastics, soft PVC has the advantage that it does not become brittle or brittle at low winter temperatures, so that good adhesion and anchoring to the substrate are maintained and no chipping due to embrittlement, as with bituminous adhesives, occurs. This also applies to the transition zone from soft PVC sealing membrane with laminated textile fabric to the asphalt layers of the pavement.
- the invention proposes that a protective layer of 'loosely laid impact-resistant plastic sheets or sheets, z-S. Between the plastic sealing sheet with textile fabric and the road surface hard-set soft PVC sheets or polyethylene sheets are arranged.
- the plastic sealing membrane 2 with laminated raw glass fleece 3 ' is placed loosely, with its plastic side lying on the bridge structure.
- the sealing membrane 2, 3 is preferably overlapped at its joints and connected continuously, for example welded or glued, depending on the plastic.
- the sealing membrane preferably has a thickness between 2 and 4 mm.
- the first asphalt layer designated as protective layer 4 e.g. B. mastic asphalt, for example applied in a thickness of 3.5 cm.
- the heat which is transferred to the sealing layer by the hot asphalt which generally has temperatures above 230 ° C., softens the plastic sealing membrane, which promotes the mechanical anchoring of the sealing membrane 2, 3 on both sides and thus to the desired bond of high permanent adhesive strength leads.
Abstract
Description
Die Erfindung bezieht sich auf eine Abdichtung aus Beton oder dgl., insbesondere Brücken, Fahrbahnrampen o. ä., mit einer auf der Bauwerksoberfläche angeordneten Kunststoffdichtungsbahn, die durch Anpressen unter Wärmeeinwirkung in den Rauhungen der Bauwerksoberfläche mechanisch verankert ist und mit einem hierauf aufgebrachten Fahrbahnbelag aus einer Deckschicht aus Guß- bzw. Walzasphalt und einer zwischen Deckschicht und Kunststoffdichtungsbahn angeordneten Schutzschicht.The invention relates to a seal made of concrete or the like, in particular bridges, road ramps or the like, with a plastic sealing membrane arranged on the surface of the building, which is mechanically anchored in the roughness of the building surface by pressing under heat and with a pavement applied thereon a top layer of cast or rolled asphalt and a protective layer arranged between the top layer and the plastic sealing membrane.
Bekanntlich ist die Lebensdauer einer Stahlbetonkonstruktion beträchtlich und kann nach den bisherigen Erfahrungen mit 100 Jahren und mehr angenommen werden. Voraussetzung hierfür sind allerdings eine fehlerfreie Ummantelung der Bewehrungseisen, Verhinderung von Korrosion der Bewehrungseisen und Verhinderung von Erosion oder Auswaschungen des Betons. Es sind bereits zur Lösung dieser Aufgaben verschiedene Vorschläge und Versuche gemacht worden, jedoch weder die Spannbetonweise noch bituminöse Oberbeläge oder in Bitumen eingebettete Metallfolien, siehe beispielsweise DAS 2.148.448, waren bisher imstande, die Aufgaben dauerhaft zu lösen. insbesondere das rheologische Verhalten bei in Bitumenlagen eingebetteten Metallfolien, vor allen Dingen das Eintreten des Glasbrechpunktes bei allen Bituminas bei niedrigen Temperaturen, sowie die leichte Verletzlichkeit der dünnen Metallfolien durch Perforation beim Begehen, Befahren usw. sind Ursache für das Versagen der Abdichtung auf Dauer. Durch das Eintreten des Glasbrechpunktes bei Bitumen entstehen feinste Kapillaren, in welche Winter für Winter Tausalzlösungen immer tiefer in den bituminösen Oberbelag eindringen und letztlich auf der Abdichtung landen. Hier zersetzen sie durch ihren chemischen Charakter in kurzer Zeit beispielsweise eine aus Metallfolie bestehende Abdichtung, so daß es dann nur noch eine Frage der Zeit ist, wann die Tausalze die Armierung der Stahlbetonkonstruktion erreichen und zerstören.As is well known, the lifespan of a reinforced concrete structure is considerable and, based on previous experience, can be assumed to be 100 years or more. A prerequisite for this, however, is an error-free covering of the reinforcing bars, prevention of corrosion of the reinforcing bars and prevention of erosion or washing out of the concrete. Various proposals and attempts have already been made to solve these tasks, but neither the prestressed concrete method, bituminous top coverings or metal foils embedded in bitumen, see for example DAS 2.148.448, have so far been able to solve the tasks permanently. In particular, the rheological behavior in the case of metal foils embedded in bitumen layers, above all the occurrence of the glass breaking point in all bituminas at low temperatures, as well as the slight vulnerability of the thin metal foils due to perforation when walking on, driving over, etc. are the cause of the failure of the seal in the long run. The occurrence of the glass breaking point in bitumen creates the finest capillaries into which de-icing salt solutions penetrate ever deeper into the bituminous top layer and ultimately land on the waterproofing. Here, due to their chemical nature, they quickly decompose, for example, a seal made of metal foil, so that it is then only a matter of time before the de-icing salts reach and destroy the reinforcement of the reinforced concrete structure.
Man hat daher bereits Überlegungen angestellt, Kunststoffdichtungsbahnen zwischen den konstruktiven Teilen von Betonbauwerken und Fahrbahnbelägen vorzusehen. Nach den Vorschlägen der DE-OS 24 39 573 wird eine Kunststoffdichtungsbahn beidseitig mittels bituminöser Klebemassen verklebt. Diese Verklebung hat den Nachteil, daß bei hohen witterungsbedingten Außentemperaturen die Klebeschicht wie ein Gleitlager wirkt und keine ausreichende Schubkraftübertragung von der Fahrbahn in das Bauwerk mehr gewährleistet ist, was zur Instabilität des gesamten Fahrbahnbelages führt. Änhnlich verhält sich eine beidseitig mit einem textilen Flächengebilde kaschierte Kunststoffdichtungsbahn in einer Brückenabdichtung gemäß DE-OS 24 38 901. Weiterhin hat man Versuche mit lose auf dem Bauwerk verlegten Elastomerfolien angestellt, die teilweise mit lose. verlegten Papierlagen abgedeckt wurden, worauf eine Gußasphaltschicht aufgebracht wurde, siehe Zeitschrift « Bitumen-Tesre-Asphalte-Peche ·, 4/1972, S. 170 bis 175.Therefore, considerations have already been made to provide plastic sealing sheets between the structural parts of concrete structures and road surfaces. According to the proposals of DE-OS 24 39 573, a plastic sealing membrane is glued on both sides by means of bituminous adhesives. This bonding has the disadvantage that, at high weather-related outside temperatures, the adhesive layer acts like a slide bearing and sufficient transmission of thrust from the roadway into the structure is no longer guaranteed, which leads to instability of the entire roadway surface. A plastic sealing sheet laminated on both sides with a textile fabric behaves in a similar manner in a bridge seal according to DE-OS 24 38 901. Furthermore, attempts have been made with elastomer foils laid loosely on the structure, some with loose ones. laid paper layers were covered, on which a mastic asphalt layer was applied, see magazine "Bitumen-Tesre-Asphalte-Peche", 4/1972, pp. 170 to 175.
Hierbei hat sich jedoch als nachteilig eine starke Faltenbildung der Elastomerfolie bei direktem Aufbringen der Gußasphaltschicht und des weiteren eine erhöhte Gleitwirkung zwischen den einzelnen Schichten bei Vorhandensein von Papierzwischenlagen herausgestellt.Here, however, it has been found to be disadvantageous that the elastomer film forms a strong fold when the mastic asphalt layer is applied directly, and furthermore an increased sliding action between the individual layers in the presence of paper intermediate layers.
Eine Verbesserung bezüglich der Schubkraftübertragung zwischen Bauwerk und Kunststoffdichtungsbahn wird mit einer Isolation gem. der CH-PS 594107 erreicht, bei der die lose auf dem Bauwerk verlegte Kunststoffdichtungsbahn durch eine heiß aufgebrachte mehrere Zentimeter dicke Asphaltschicht, die mittels eines Vibrators verdichtet wird, erwärmt und erweicht wird, so daß sie sich in die Rauhungen der Bauwerksoberfläche eindrückt und auf diese Weise mechanisch verankert wird. Eine haftfeste Verbindung der Kunststoffdichtungsbahn mit der Schutzschicht aus Asphalt soll ebenfalls durch mechanische Verankerung, z. B. durch auf der Dichtungsbahn ausgebildete Rippen erfolgen. Es hat sich jedoch gezeigt, daß diese Verbindung keine ausreichende Schubkraftübertragung bei den wechselnden witterungsbedingten Temperaturen gewährleistet, da die Rippen während des Aufbringens der heißen Asphaltbeläge teilweise eingeebnet werden und sich die darüber hinaus an den Grenzschichten von Asphalt (Bitumen) und Kunststoffen die Nachteile des Nachlassens der Haftung durch Versprödung bemerkbar machen.An improvement with regard to the transmission of shear force between the structure and the plastic sealing membrane is in accordance with insulation. reached the CH-PS 594107, in which the loose on the building plastic sealing membrane is heated and softened by a hot applied several centimeter thick asphalt layer, which is compressed by a vibrator, so that it presses into the roughness of the building surface and on this Way is mechanically anchored. An adhesive connection of the plastic sealing membrane with the protective layer of asphalt should also be achieved by mechanical anchoring, e.g. B. by ribs formed on the sealing membrane. However, it has been shown that this connection does not ensure sufficient transmission of shear force in the changing weather-related temperatures, since the ribs are partially leveled during the application of the hot asphalt coverings and, moreover, the disadvantages of slackening at the boundary layers of asphalt (bitumen) and plastics liability due to embrittlement.
Der Erfindung liegt die Aufgabe zugrunde, Beton, insbesondere Stahlbetonkonstruktionen, beispielsweise Brücken, Fahrbahnrampen, o. dgl. gegen Durchfeuchtung der Bauwerksoberfläche zu schützen und das Eindringen von Regenwasser und mit Tausalz durchsetztem Wasser in das Bauwerksinnere zu verhindern und dynamische Kräfte insbesondere Schubkräfte des Fahverkehrs o. dgl. kraftschlüssig und möglichst witterungsunabhängig in die Bauwerkskonstruktion zu übertragen. Auch soll die Dichtungsbahn im Herstellungsstadium gegen mechanische oder sonstige Beschädigungen während der Bauzeit möglichst geschützt sein.The invention has for its object to protect concrete, in particular reinforced concrete structures, such as bridges, road ramps, or the like. Against moisture in the building surface and to prevent rainwater and de-icing water from penetrating into the interior of the building and dynamic forces, in particular thrusting forces from vehicle traffic . To be transferred non-positively and as weather-independent as possible into the building structure. The sealing membrane should also be protected as far as possible against mechanical or other damage during the construction period.
Ausgehend von der Bauwerksabdichtung nach der CH-PS 594107 löst die Erfindung die gestellte Aufgabe dadurch, daß ein Verbund der Kunststoffdichtungsbahn mit einer Schutzschicht aus einem textilen Flächengebilde- aus Glasfasern o. ä. das mit dem Kunststoff, auf dessen Basis die Kunststoffdichtungsbahn hergestellt ist, getränkt ist, verwendet ist. Das textile Flächengebilde wirkt nun einerseits als Hitzeabwehrschild für die Kunststoffdichtungsbahn gegen die Wärme aus den nachfolgend aufzubringenden heißen Asphaltschichten, die 240 °C und mehr Temperaturgrade aufweisen. Dieses ist insbesondere für Kunststoffdichtungsbahnen, die nicht so hoch temperaturbeständig sind, von Bedeutung, wie z. B. Weich-PVC-Dichtungsbahnen, im Gegensatz zu Elastomerfolien z. B. auf Butylkautschukbasis. Weiterhin bewirkt das textile Flächengebilde eine gute Haftfestigkeit und gute mechanische Verankerung der Asphaltschichten als auch der Kunststoffdichtungsbahn, so daß auch bei wechselnden witterungsbedingten Temperaturen durch die das textile Flächengebilde selbst vorgegebene Dimensionsstabilität auch an diesen Grenzflächen die erforderliche Schubkraftübertragung gewährleistet und erhalten bleibt. Darüberhinaus verhindert das textile Flächengebilde das Bilden von Falten in der Dichtungsbahn während des Aufbringens und Verteilens der heißen Asphaltschichten, was ja mit erheblichen Drucken verbunden ist, da es selbst dimensionsstabil bleibt und damit einer Verformung der Dichtungsbahn entgegenwirkt, d. h. sie aufnimmt. Überraschend ist auch, daß die Verbindung zwischen textilem Flächengebilde und Dichtungsbahn nach dem Aufbringen der Asphaltschichten erhalten bleibt, d. h. durch die thermische Belastung tritt keine Schädigung auf, das gilt auch für Weich-PVC. Die oftmals bei bituminös verklebten Dichtungsbahnen beobachtete Gleitlagerwirkung durch Erwärmung wird mit der Erfindung vermieden.Starting from the building waterproofing according to CH-PS 594107, the invention achieves the object in that a composite of the plastic sealing membrane with a protective layer of a textile fabric made of glass fibers or the like that with the plastic, on the basis of which the plastic sealing membrane is produced, is soaked, is used. The textile fabric now acts on the one hand as a heat shield for the plastic sealing membrane against the heat from the subsequent hot asphalt layers to be applied, which have 240 ° C and more temperatures. This is especially true for plastic sheeting that is not that high are temperature resistant, important, such as. B. soft PVC geomembranes, in contrast to elastomer films such. B. based on butyl rubber. Furthermore, the textile fabric ensures good adhesive strength and good mechanical anchoring of the asphalt layers as well as the plastic sealing membrane, so that even with changing weather-related temperatures due to the dimensional stability given by the textile fabric itself, the necessary shear force transmission is guaranteed and maintained at these interfaces. In addition, the textile fabric prevents the formation of creases in the waterproofing membrane during the application and distribution of the hot asphalt layers, which is associated with considerable pressure, since it itself remains dimensionally stable and thus counteracts deformation of the waterproofing membrane, ie absorbs it. It is also surprising that the connection between the textile fabric and the waterproofing membrane is retained after the asphalt layers have been applied, ie no damage occurs as a result of the thermal load, and this also applies to soft PVC. The slide bearing effect due to heating, which is often observed with bituminous adhesive sealing sheets, is avoided with the invention.
Damit wird jedoch erfindungsgemäß eine Abdichtung mittels Kunststoffdichtungsbahnen für Bauwerke mit Asphaltdeckschichten vorgeschlagen, die eine einwandfreie Schubkraftübertragung vom Fahrbahnbelag über die verschiedenen Zwischenschichten in das Bauwerk auch bei wechselnden witterungsbedingten Temperaturen und dem damit verbundenen unterschiedlichen Verhalten der Werkstoffe der einzelnen Schichten gewährleistetHowever, according to the invention, a sealing by means of plastic sealing sheets for buildings with asphalt cover layers is proposed, which ensures a perfect transfer of shear force from the road surface over the various intermediate layers into the building, even with changing weather-related temperatures and the associated different behavior of the materials of the individual layers
Bevorzugt werden für die erfindungsgemäßen Abdichtungen textile Flächengebilde wie Rohglasvliese, Glasfasermatten o. dgl. mit einem Flächengewicht von 50 bis 150 g/m2 eingesetzt. Besonders gute Haftfestigkeiten zwischen den einzelnen Materialien lassen sich erfindungsgemäß dadurch erzielen, daß das textile Flächengebilde mit dem Kunststoff, auf dessen Basis die Kunststoffdichtungsbahn hergestellt ist, getränkt ist.For the seals according to the invention, textile fabrics such as raw glass nonwovens, glass fiber mats or the like with a weight per unit area of 50 to 150 g / m 2 are preferably used. Particularly good adhesive strengths between the individual materials can be achieved according to the invention in that the textile fabric is impregnated with the plastic on the basis of which the plastic sealing membrane is produced.
Eine bevorzugte Abdichtung gem. der Erfindung verwendet bitumenbeständige Dichtungsbahnen auf Weich-PVC-Basis. Weich-PVC hat gegenüber anderen Kunststoffen den Vorteil, daß es bei tiefen Wintertemperaturen noch nicht spröde, brüchig wird, so daß die gute Haftung und Verankerung am Bauwerksuntergrund erhalten bleibt und kein Abplatzen durch Verspröden, wie bei bituminösen Klebemassen, eintritt. Das gilt auch für die Übergangszone von Weich-PVC-Dichtungsbahn mit aufkaschiertem textilem Flächengebilde zu den Asphaltschichten des Fahrbahnbelages.A preferred seal acc. The invention uses bitumen-resistant sealing sheets based on soft PVC. Compared to other plastics, soft PVC has the advantage that it does not become brittle or brittle at low winter temperatures, so that good adhesion and anchoring to the substrate are maintained and no chipping due to embrittlement, as with bituminous adhesives, occurs. This also applies to the transition zone from soft PVC sealing membrane with laminated textile fabric to the asphalt layers of the pavement.
Für alle diejenigen Anwendungsfälle, bei denen eine solche starke Gefährdung der Abdichtung durch mögliche Beschädigung durch Nachfolgearbeiten besteht, schlägt die Erfindung vor, daß zwischen der Kunststoffdichtungsbahn mit textilem Flächengebilde und dem Fahrbahnbelag eine Schutzlage aus' lose verlegten schlagzähen Kunststoffplatten oder -bahnen, z- S. hart eingestellten Weich-PVC-Platten oder Polyäthylenplatten angeordnet ist.For all those applications in which there is such a high risk of sealing due to possible damage from subsequent work, the invention proposes that a protective layer of 'loosely laid impact-resistant plastic sheets or sheets, z-S. Between the plastic sealing sheet with textile fabric and the road surface hard-set soft PVC sheets or polyethylene sheets are arranged.
Die Erfindung wird in der Zeichnung schematisch in ihrem Aufbau erläutert.The structure of the invention is illustrated schematically in the drawing.
Auf dem Brückenbauwerk 1 aus Stahlbeton, dessen Oberfläche ausreichend eben, sauber, frei von Mörtelresten etc. sein soll, wird die Kunststoffdichtungsbahn 2 mit aufkaschiertem Rohglasvlies 3' lose aufgelegt, mit ihrer Kunststoffseite auf dem Brückenbauwerk aufliegend. Die Dichtungsbahn 2, 3 wir an ihren Stoßstellen vorzugsweise überlappt und durchgehend verbunden, beispielsweise verschweißt oder verklebt, je nach Kunststoff. Die Dichtungsbahn hat vorzugsweise eine Dicke zwischen 2 und 4 mm.On the bridge structure 1 made of reinforced concrete, the surface of which should be sufficiently flat, clean, free of mortar residues, etc., the
Anschließend wird die als Schutzschicht 4 bezeichnete erste Asphaltschicht, z. B. Gußasphalt, beispielsweise in einer Dicke von 3,5 cm aufgebracht. Danach wird die Deckschicht 5 des Fahrbahnbelages, z. B. Gußasphalt oder Asphaltbeton, beispielsweise in einer Dicke von 3,5 cm aufgebracht. Die durch den heißen, Temperaturen in der Regel über 230 °C aufweisenden Asphalt auf die Dichtungsschicht sich übertragende Wärme wird eine Erweichung der Kunststoffdichtungsbahn bewirkt, die die mechanische Verankerung der Dichtungsbahn 2, 3 nach beiden Seiten fördert und damit zu dem gewünschten Verbund hoher dauerhafter Haftfestigkeit führt.Subsequently, the first asphalt layer designated as protective layer 4, e.g. B. mastic asphalt, for example applied in a thickness of 3.5 cm. Then the top layer 5 of the road surface, z. B. mastic asphalt or asphalt concrete, for example applied in a thickness of 3.5 cm. The heat which is transferred to the sealing layer by the hot asphalt, which generally has temperatures above 230 ° C., softens the plastic sealing membrane, which promotes the mechanical anchoring of the sealing
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT81102223T ATE13704T1 (en) | 1980-04-25 | 1981-03-25 | SEALING OF ENGINEERING WORKS WITH PLASTIC SEALING MEMBRANES. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803016055 DE3016055A1 (en) | 1980-04-25 | 1980-04-25 | SEALING ENGINEERING CONSTRUCTIONS WITH PLASTIC SEALING LINES |
| DE3016055 | 1980-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0038933A1 EP0038933A1 (en) | 1981-11-04 |
| EP0038933B1 true EP0038933B1 (en) | 1985-06-05 |
Family
ID=6100974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81102223A Expired EP0038933B1 (en) | 1980-04-25 | 1981-03-25 | Sealing of constructive works with thermoplastic sealing sheets |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0038933B1 (en) |
| AT (1) | ATE13704T1 (en) |
| DE (2) | DE3016055A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3147347C2 (en) * | 1981-11-30 | 1983-09-29 | Alfred Kunz GmbH & Co, 8000 München | Insulating layer for concrete or steel structures |
| GB2169021A (en) * | 1984-12-19 | 1986-07-02 | William Pershing Brown | Method of surfacing roadways |
| FR2780740B1 (en) * | 1998-07-06 | 2000-09-29 | Daniel Doligez | ANTI-HUMIDITY COMPLEX OF FIBER GRID AND PLASTIC FILM, FOR ASPHALTS APPLIED INDEPENDENCE ON SIDEWALK TYPE SUPPORTS, ROOFS |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2188627A5 (en) * | 1972-06-06 | 1974-01-18 | Gerland Ste Chi Ique | Traffic surface sealing - using composite plastic layer sandwiched between road foundation and running surface coating |
| AT326172B (en) * | 1972-07-28 | 1975-11-25 | Villadsens Fab As Jens | BITUMINOUS COVERING FOR A CONCRETE SURFACE |
| DE2313970C2 (en) * | 1973-03-21 | 1982-11-18 | Phoenix Ag, 2100 Hamburg | Weather-resistant waterproofing membrane for building purposes |
| DE2438901A1 (en) * | 1974-08-13 | 1976-02-26 | Kunz Alfred & Co | Concrete bridge superstructure coating and sealing - has bituminous plastic foil lined both sides with plastic, fibreglass or asbestos |
| DE2439574C2 (en) * | 1974-08-17 | 1985-06-05 | Dynamit Nobel Ag, 5210 Troisdorf | Building waterproofing, in particular bridge waterproofing |
| DE2439573A1 (en) * | 1974-08-17 | 1976-02-26 | Dynamit Nobel Ag | Reinforced-concrete bridge bitumen-proof sealing - uses synthetic thermoplastic ribbed sealing strips cemented on adhesive mass |
| CH594107A5 (en) * | 1975-04-16 | 1977-12-30 | Tecnofol Ag | Bridge top surface insulation - has plastics sheet placed between road surface insulation and concrete with mechanical bonding |
| FR2365661A1 (en) * | 1976-09-22 | 1978-04-21 | Screg Routes & Travaux | Bridge road surface sealing coating - comprises mutually impregnated heat hardened base, reinforcing layer and different top layer (BE 21.3.78) |
| FR2368580A1 (en) * | 1976-10-20 | 1978-05-19 | Asphaltes Cie Metropolitaine | Waterproofing concrete roads - by applying bitumen, prefabricated reinforced bitumen, cloth and asphalt layers |
-
1980
- 1980-04-25 DE DE19803016055 patent/DE3016055A1/en not_active Withdrawn
-
1981
- 1981-03-25 DE DE8181102223T patent/DE3170811D1/en not_active Expired
- 1981-03-25 EP EP81102223A patent/EP0038933B1/en not_active Expired
- 1981-03-25 AT AT81102223T patent/ATE13704T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0038933A1 (en) | 1981-11-04 |
| ATE13704T1 (en) | 1985-06-15 |
| DE3016055A1 (en) | 1981-10-29 |
| DE3170811D1 (en) | 1985-07-11 |
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