EP0363709A2 - Device for use at seals of planar construction parts for drainage, parcelling and production of a toothing between seal and layer applied thereto, for bridges, parking ramps, reservoirs, ground water protection plants and the like - Google Patents

Abstract

The device according to the invention provides for drainage of the seal of construction parts used and not used by vehicles, the parcelling of the construction parts and also a toothing for the layers separated by the drainage. With the device, the damage occurring most frequently to the conventional seals firmly connected to their protective layer is avoided. By the separation of the seal from the protective layer, the seal is freed from the transmission of tractive force. Thus a substantially longer service life can be expected for the seal. <IMAGE>

Description

The invention relates to a device according to the preamble of claim 1.

The planned installations are intended to enable clear assignment of tasks in the interaction of the individual layers and to eliminate the risk of undesired crack formation by dividing large areas into individual plots.

With the sealing and covering constructions currently used, all layers must be firmly bonded. However, this design presupposes that the protective layer on the seal under traffic maintains its task, namely its protective function. However, this is not always the case. It becomes cracked due to tensions from temperature changes and deformations under the traffic load. With this type of construction, these cracks are inevitably transferred to the seal. Since it exceeds the tolerable level for the seal, it will cause premature damage. With this type of construction, the formation of bubbles in the covering layers due to foreign inclusions and their growth due to temperature fluctuations cannot be prevented. The insert of a glass fleece has also been used since then, but the only point-provided drainage caused puddles when the slope was poorly laid out on the sealing surface and thus promoted a certain pumping effect during traffic loads, which then led to premature fatigue of the covering and its break-up. The all-round joint formation in the mastic asphalt protection layer also favors this process. With the associated floating storage of this layer, it migrated to the deep side and squeezed out the relatively which joint potting. With this migration of the protective layer, however, there was already a first overuse sealing was unavoidable, since there was a firm bond. With this construction, the formation of the encircling grouting joint cannot be dispensed with, since infiltrating water in the edge area has no possibility of drainage, that is to say the grouting of the joints must take on a sealing function. In the long run, he can only fulfill this task insufficiently.

With the internals according to the invention, these aforementioned disadvantages of the previous designs can be avoided. The tasks of each component in the overall system are clearly separated. Above all, the drainage of single-grain concrete under the screed rims or along the shaped steel profiles, which collect and drain the infiltrated water in the shortest possible way and prevent puddles, means that the seal can be expected to have a significantly longer service life the protective layer between the shaped steel profiles, because now the edge joint formation, which causes a "floating storage" of the protective layer can be omitted. Due to the firm locking of the protective layer on the one hand and the separation of the sealing and the covering on the other hand, the requirement for the crack-bridging ability of the sealing (currently 2 mm, even at minus degrees) is reduced, since the stress from possible cracks in the covering structure is eliminated. The seals can be improved in favor of other properties. This is especially the case with the increasingly used liquid plastic seal.

An embodiment is shown in the accompanying drawings and described in more detail below.

• Figur 1 Die Ausbildung der Parzellierung einer abzudichtenden Fläche mittels Formstahlprofilen, deren Verankerung, die Dränung aus Einkornbeton sowie dessen Entwässerung bei einem drei­schichtigen Belagaufbau.
• Figur 2 Wie Figur 1 ,jedoch bei einem zweischichtigen Belagaufbau.
• Figur 3 Ausführung einer Dränung einer Brückenfläche unter dem Schramm­bord, wobei der Einkornbeton gleichzeitig als Auflager für den Schrammbord selbst dient und die Gehwegkappe anschließend betoniert wird.
• Figur 4 Wie vor, jedoch bei einer Instandsetzung der Abdichtung, wenn die Gehwegkappe bereits betoniert ist und erhalten bleibt. Bei dieser Bauweise läßt sich unter dem Schrammbord eine gute Überlappung der alten mit der neuen Abdichtung herstellen.
• Figur 5 Wie vor, jedoch ohne Fetigteilschrammbord. In diesem Fall wird die Dränung vorab eingebaut und gegenüber dem nachfol­genden Beton mit einer Pappeschicht abgedicht.

Show it:

• Figure 1 The formation of the parcelling of a surface to be sealed by means of shaped steel profiles, their anchoring, the drainage from Einkornbeton and its drainage in a three-layer covering.
• Figure 2 Like Figure 1, but with a two-layer covering structure.
• Figure 3 Execution of a drainage of a bridge surface under the curb, the Einkornbeton also serves as a support for the curb itself and the pavement cap is then concreted.
• Figure 4 As before, but with a repair of the seal, if the pavement cap is already concreted and is preserved. With this construction method, a good overlap of the old with the new seal can be created under the scrap board.
• Figure 5 As before, but without Fetigteilschrammbord. In this case, the drainage is installed in advance and sealed against the subsequent concrete with a layer of cardboard.

• 1 Schrammbordfertigteil
• 2 Einkornbeton mit Epoxidharzbindemittel
• 3 Entwässerungsrohr
• 4 Abzudichtender Beton
• 5 Gehwegkappenbeton
• 6 Asphaltbetonschicht
• 7 Gußasphaltschicht
• 8 Abdichtung
• 9 Entwässerungsschicht
• 10 Schrammbordverankerung
• 11 Fuge
• 12 Fugenverguß
• 13 Gehwegbeschichtung
• 14 Formstahlprofil
• 15 Verankerung des Formstahlprofiles

In the figures:

• 1 prefab part
• 2 single-grain concrete with epoxy resin binder
• 3 drainage pipe
• 4 Concrete to be sealed
• 5 pavement cap concrete
• 6 asphalt concrete layer
• 7 Mastic asphalt layer
• 8 sealing
• 9 drainage layer
• 10 Scratchboard anchorage
• 11 fugue
• 12 grouting
• 13 Sidewalk coating
• 14 shaped steel profile
• 15 Anchoring the shaped steel profile

to number 6 Title of the invention:

Device for the sealing of flat components for their drainage, parcelling and production of a toothing between the sealing and the layer arranged above on bridges, parking decks, tubs, groundwater protection systems and the like.

Claims (5)

1. Device on seals of flat components for their drainage, parcelling and producing a toothing between the seal and the layer arranged above, on bridges, parking decks, tubs, groundwater protection systems and the like, characterized in that a drainage layer in the form of a reinforced drainage fleece on the seal is placed and this leads to a drainage of Einkornbeton with plastic as a binder, this drainage is preferably arranged under the scraps, when dividing the areas to be sealed into individual plots at their peripheral zones, the connection of the seal with the covering, which is eliminated by the drainage layer, only through an additional interlocking layer is replaced, the introduction of the shear forces from the traffic takes place via shaped steel profiles, which are constructed in such a way that the arrangement of the drainage from single-grain concrete does not weaken the layers above and thus all guaranteed sealing drainage dispenses with the need for an edge grout in the mastic protective layer. 2. As before, but characterized in that the drainage fleece can be replaced by another water-conductive layer, which has no or only a small connection to the seal. 3. As before, however, characterized in that the Einkornbeton with synthetic resin as a binder can also be installed without a drainage layer as a base for the scrap board and the ability to drain water is not a main task. 4. As before, however, characterized in that the division of the bridge surface with shaped steel profiles into expediently large plots serves to reduce the stresses as a result of temperature changes in the covering layers and specifies a predetermined breaking point. 5. Drainage fleece layer, characterized in that this only serves to prevent blistering in the covering during installation and under traffic.

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