EP2811073B1 - Covering of a traffic route and method for producing the same - Google Patents

Covering of a traffic route and method for producing the same Download PDF

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Publication number
EP2811073B1
EP2811073B1 EP14001456.4A EP14001456A EP2811073B1 EP 2811073 B1 EP2811073 B1 EP 2811073B1 EP 14001456 A EP14001456 A EP 14001456A EP 2811073 B1 EP2811073 B1 EP 2811073B1
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EP
European Patent Office
Prior art keywords
layer
grooves
open
uppermost layer
regions
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EP14001456.4A
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German (de)
French (fr)
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EP2811073A1 (en
Inventor
Markus Prof. Dr.-Ing. Oeser
Andreas Schacht
Bernhard Prof.Dr. Steinauer
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Rheinisch Westlische Technische Hochschuke RWTH
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Rheinisch Westlische Technische Hochschuke RWTH
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/22Pavings made of prefabricated single units made of units composed of a mixture of materials covered by two or more of groups E01C5/008, E01C5/02 - E01C5/20 except embedded reinforcing materials
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/225Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage

Definitions

  • the invention relates to a pavement of a traffic route, such as a road, in particular applied to a load-bearing layer of a traffic route, such as on a conventional asphalt or concrete substructure and having a layer structure of at least two superimposed layers, wherein the layer structure is a topmost Layer having a contacted by vehicles driveway, which has a high ranges and deep structures forming structure and has at least one arranged under the top layer open-pore layer, in particular which is formed from an open-pore bound granules, wherein the driving surface forming the top layer in the Deep regions of the structure has through openings, each extending, in particular vertically, through the uppermost layer to the at least one open-pored layer, wherein the deep areas through the bottom portions of in the uppermost Layer running, upwardly open grooves / grooves are formed, in particular intersect and at least a part of the grooves / groove are oriented perpendicular to the extension / direction of travel of the uppermost layer, in particular over the entire width of the layer.
  • Traffic routes of this kind are known, for example BE 826 417 A1 .
  • DE 91 16 773 U1 and DE 295 18 977 U1 US Pat. No. 6,206,607 B1 further discloses the windability of the topmost cover of a traffic route, which is sufficiently flexible in its entirety and has no groove structure.
  • the publication WO 99/20842 A1 also discloses a pavement of a traffic route, but without a high and low forming structure.
  • a covering of a traffic route wherein at least a portion of the perpendicular to the direction of extension / direction of travel of the uppermost layer oriented grooves / grooves, in particular every nth with n> 1, has a greater depth than the other grooves / groove in such a way that the uppermost layer is at least partially angled away from a connection to the open-pored layer in these deeper grooves / grooves and thus can be wound up in web sections and / or unwound from a winding.
  • the invention is further achieved by a method for producing a covering for traffic routes of the aforementioned type, in which at least one open-pored layer of a prefabricated winding is unwound and connected to the supporting layer of the traffic route or another open-pored layer on a prepared supporting layer of the traffic route and on this at least one open-pored layer, the uppermost the tread-forming layer with a high areas and deep structures forming structure, in the deep areas through holes are arranged unwound from a prefabricated winding and air-permeable connected to the open-pore layer at least in the through holes, in particular cohesively connected.
  • the essential core idea of the invention is based on the coating according to the invention mentioned above on the layer structure comprising at least two layers.
  • the at least one upper layer forming the driving surface which comes into direct contact with the tire, has a structure in which, at least in the direction of travel, preferably also transversely, in particular perpendicularly, the structure is characterized by alternating highs and low ranges, so that the generation of sound is reduced by such an uppermost layer, namely in particular of such sound, which results from the compression of air between the tire and the driving surface.
  • the tires roll on the high areas of the structure and the low areas contribute in the structure to a compression of air between tires and driving surface is reduced, since the air can escape within the deep areas. Hissing noise, which otherwise results from the compression of air between tires and road surfaces, is thus sustainably reduced.
  • An essential advantage of the invention results precisely from the fact that in this at least two-layer structure of the lining of a traffic route, each of the at least two layers can be optimized in terms of their respective properties.
  • the uppermost layer forming the driving surface can be optimized, on the one hand, with regard to the reduction of sound generation and, on the other hand, also with regard to the durability of this layer, in particular in such a way that harder more durable materials can be used in comparison with the at least one open-pored layer arranged underneath.
  • the open-pore layer under the uppermost turf-forming and structural layer can be made significantly softer and with a large void content compared to it, without thereby being subject to increased wear, as it is protected under the uppermost layer.
  • an open-pore rubber granulate for the at least one open-pored layer.
  • resins or plastics such as epoxy resins or polyurethanes can be used as binders for this covering.
  • greater than 20 vol.% Of cavities in this layer can be realized and thus have a good sound absorption for those sound that penetrates through the through holes in the topmost coating in this sound-absorbing open-pore layer.
  • At least two-layer coating can be seen in the production of such a coating according to the invention, since at least the top, the driving surface forming and the structures having through-holes layer can be prefabricated, for example, in the carriageway width is wound into a winding and after creation at least one open-pored layer on a support layer of a traffic route unwound on this at least one open-pored layer and air-permeable, at least in the areas of the passage openings, to allow the passage of sound through the uppermost layer into the underlying open-pore layer.
  • the invention can provide here that not only a single sound-absorbing open-pored layer is provided in the covering according to the invention, but optionally several such open-pored layers, e.g. with different porosities or void fractions and / or material compositions.
  • the invention may also provide to provide at least one open-pored layer on a prefabricated winding, so that an inventive coating of a traffic route by successively unwinding this at least two existing layers can be made.
  • the covering according to the invention can provide that the individual high regions of the structure, which can be understood as upper ends of webs or protrusions, each have a flat plateau, the plateaus of all the upper regions preferably lying in the same plane. This ensures that when rolling tires on the high regions of the structure only lower vibrations of the tire arise.
  • plateau surface portions can be provided to make the plateau surface portions larger per unit area considered for a covering according to the invention than the surface areas which are occupied by deep areas in the considered area unit.
  • the area formed by such topmost layer is thus predominantly, i. to more than 50%, closed.
  • the invention provides that the deep regions pass through the bottom regions and wall regions of in the uppermost layer are formed above open channels or grooves,
  • the uppermost layer has at least a multiplicity of grooves / grooves which run parallel to one another in a first direction perpendicular to the direction of travel.
  • a further plurality of parallel grooves and / grooves at least predominantly in the direction of travel, i. at an angle of less than 45 degrees to the direction of travel or exactly in the direction of travel.
  • the passage openings are formed in the bottom regions of the upwardly open grooves or grooves and preferably at least at the locations at which grooves or grooves intersect.
  • transitions between the deep regions and the high regions may be linear, stepped, but preferably rounded, merging into one another.
  • the invention provides that at least part of the grooves / grooves are oriented perpendicular to the extension direction or direction of travel of the uppermost layer.
  • An advantageous embodiment can provide here that at least part of the grooves / groove extends over the entire width of the uppermost layer.
  • intersecting grooves / grooves are provided in the inventive design of the structure, it may be provided that in addition to those parallel grooves and grooves that extend over the entire width of the uppermost layer, other other parallel grooves / grooves are present at least substantially in the extension direction / direction of travel of the uppermost layer or at an angle thereto and further preferably extend uninterrupted, in particular continuously over the continuous section length of a wound portion of this uppermost layer.
  • the arrangement of at least a part of the grooves / groove perpendicular to the extension / direction of travel of the uppermost layer has the advantage
  • the reduced noise generation has the further advantage that the thickness of the uppermost layer is significantly reduced at the respective location of the grooves / grooves and thus a possible embodiment can already provide that the uppermost layer of the coating according to the invention in the areas thereof over the entire width of the layer extending grooves / grooves around the direction of extension of the groove / grooves around bendable and thus in web sections on a winding wound up or can be unwound from such a winding, the winding axis is therefore perpendicular to the direction of travel.
  • the depth of the grooves / groove is indeed chosen deep enough to reduce the generation of sound, but not deep enough to ensure a windability to a winding, the invention provides that at least a portion of the perpendicular to the extension / direction of travel the uppermost layer-oriented grooves / grooves, in particular every n-th groove / channel with n> 1, has a greater depth than the remaining grooves / grooves.
  • both the Noise reduction serve as well as providing the windability of this topmost layer. It can thereby take place a prefabrication of this uppermost layer in a factory, to then transport such a prefabricated winding to the site and unwind on an open-pored layer in the direction of travel and to connect with this.
  • the passage openings mentioned at the outset which cause sound from the place of origin between the tires and the uppermost layer to pass directly through them
  • Through openings in the open-pored layer are arranged in both types of grooves / grooves are arranged.
  • a structural module may then be such a surface area of the uppermost layer, which is enclosed in the two different directions by two parallel deeper grooves / grooves.
  • the structure may be the same, but from module to module either the same or even different, e.g. in that the distance of the exclusively sound-reducing grooves / channels lying between the deeper grooves / grooves with the smaller depth is different from module to module.
  • a further development of the invention provide that the reinforcement of the top Layer of the coating according to the invention in this top layer a reinforcing element is embedded, for example, a textile fabric or knitted fabric.
  • Such a textile element or other reinforcing element may preferably be arranged in a region between the lower surface of the above-described uppermost layer of the lining according to the invention and the deepest of the deep regions, in particular centrally in this region.
  • a development of the invention can also provide that the structural periodicity of high and low regions, especially in the direction of travel and / or also transversely, in particular perpendicular thereto, and / or the number of through holes per unit area of the uppermost layer is locally different, especially then if there is no structural module formation as described above.
  • a structure of different periodicity can be realized in order to meet different requirements for noise generation or avoidance, for example as a function of the respectively locally driven usual average speeds.
  • a different periodicity or other widths of high and low ranges may be provided, for optimal sound reduction and absorption as a function of locally given speeds to reach.
  • An embodiment may also provide that the lining at least in the direction of travel, if necessary, also transversely, in particular perpendicular thereto, no
  • Periodicity of the structure to just prevent that caused by such periodicities thereby caused acoustic emissions.
  • the covering according to the invention also has the advantage that even existing traffic routes of classical design can be retrofitted with a covering according to the invention.
  • an existing traffic route directly directly form the base course for a covering according to the invention.
  • the invention further provides that the uppermost, the driving surface forming layer is formed on a plastic base, for example, from a fiber-reinforced plastic material mixture, which can be used as an example of a plastic, for example, acrylate.
  • the at least one open-pored layer according to the invention arranged thereunder can, as already mentioned at the outset, be formed from an open-pored bonded rubber granulate or another open-pore bonded elastomer. Likewise, the open-pore design of non-elastomeric materials / granules is possible.
  • the embodiment according to the invention may further provide that the uppermost layer having the structure and forming the driving surface has a thickness in the range of, for example, 5 to 50 mm.
  • the at least one open-pored layer may be formed which, for example, has thicknesses of at least 40 mm, preferably greater than 50 mm.
  • the structure formed in the uppermost layer may be formed differently in the direction of travel and transverse to the direction of travel, for example, it may be provided that the plateau areas of the high areas of the structure are wider transverse to the direction of travel than in the direction of travel and in both directions are greater than the distances between the high areas, especially their plateaus. According to the invention, therefore, the trained grooves / grooves, which form the low regions of the structure, in the direction of travel and optionally also transversely, in particular perpendicular to the direction of travel, smaller than the respectively intended high areas.
  • the plateau regions having the tire contact in the direction of travel may have an extension of e.g. 2 to 50 mm, preferably 2 to 20 mm, particularly preferably 2 to 10 mm, and transverse to the direction of travel e.g. an extension of 2 to 50 mm, preferably 2 to 20 mm and more preferably 2 to 10 mm.
  • the depth of the deep regions may preferably be in the range from 2 to 30 mm, preferably> 5, particularly preferably> 10 mm to get voted.
  • the width of the deep regions, and thus the distance between adjacent plateaus may be e.g. in the range of 2 to 30 mm, preferably 2 to 20 mm, particularly preferably 2 to 10 mm.
  • the invention can provide that the crossing of the respective grooves / channels not only takes place at an angle of 90 °, but in another embodiment under an application-specifically selected deviates from 90 degrees Angle, especially depending on the expected at the location of the lining speeds is selected.
  • FIG. 1 shows in a sectional side view of an inventive, at least two layers having coating of a traffic route.
  • top layer 1 which has a structure in this sectional view with plateau-forming high regions 1a and in each case disposed therebetween deep areas 1b, which follow one another in the direction of travel. It is not recognizable here that even vertically or at another angle transverse to the direction of travel illustrated here, such high and low regions follow one another, Accordingly, therefore, the gutters / grooves forming the deep regions 1b run in at least two different orientations, wherein at least one orientation preferably runs perpendicular to the planned direction of travel.
  • the uppermost layer 1 there is at least one underlying open-pored layer 2, e.g. consists of an open-pore bound granules, such as a rubber granulate.
  • the embodiment may be such that the voids make up at least 20% by volume of this layer.
  • the covering according to the invention of the at least two aforementioned layers 1 and 2 is arranged on a supporting layer 3 of the traffic route, such as a conventional asphalt or concrete substructure.
  • the effect of the coating according to the invention lies in the fact that the subdivision of the surface of the topmost layer into high regions 1a and deep regions 1b, thus essentially the provision of a plurality of grooves / grooves in this layer, which are open at the top and thus to the contacting tire There is less noise emission because air compression between the tire and this topmost layer is prevented by the possibility of the air within the gutter / nute escaping.
  • a further effect according to the invention consists in the fact that sound which has nevertheless formed is formed by the sound produced here in at least some passage openings 1c arranged, preferably in all of the deep areas 1b can pass directly through the uppermost layer 1 into the porous layer 2 and is absorbed there.
  • the covering according to the invention combines the reduction of the acoustic emission with the principle of sound absorption, whereby each of the two layers 1, 2 used here can be optimized for their respective application purpose.
  • the driving surface forming layer 1 can be optimized in addition to the reduction of sound emission in terms of durability and this example, a material is selected that the requirements of relevant standards, such as the ZTV Asphalt STB 07, Fulfills. This can be done for example by plastics such as acrylates.
  • FIG. 1 further shows that in the uppermost layer, a reinforcing element 4 may be embedded, for example a textile fabric or knitted fabric, wherein the plane of the reinforcing element 4 is parallel to the lower surface of the uppermost layer.
  • a reinforcing element 4 may be embedded, for example a textile fabric or knitted fabric, wherein the plane of the reinforcing element 4 is parallel to the lower surface of the uppermost layer.
  • FIG. 1 further illustrates that within a top layer 1, the high regions of the formed structure in the direction of travel and possibly also transversely or perpendicular thereto may have different cross-sectional area.
  • FIG. 2 shows a schematic plan view of the top layer 1 of the lining according to the invention for traffic routes.
  • the structure is formed by the high areas 1a and deep areas 1b, wherein here through holes 1c are provided within the deep areas 1b, in particular in the respective bottom areas of the grooves / grooves, the allow a Schallorialtician air passage through the uppermost layer 1 through to the underlying, not shown here, layer 2, so that the through the passage opening 1c penetrating sound is absorbed in this open-pored layer 2.
  • FIG. 2 shows only the principle of simplification, a periodic arrangement of the structure both in the direction of travel and perpendicular to it, it can be provided that the structure size and thus the width of the plateaus of the high areas in the direction of travel, at an angle to the direction and perpendicular to the direction of travel or in an angle transverse to it, also depending on the location may be different.
  • FIG. 3 shows an example representation of possible geometric courses of selectable structures.
  • Variant A shows that a plateau P, which forms the high region of a structure, is substantially sharp-edged adjacent to a wall region W of a groove or groove, and this wall region in the bottom region is led down to a residual thickness of 1 mm of the formed uppermost layer according to the invention.
  • Wall area W and bottom area not shown thereby form a deep area that is not contacted by the tire and allows escape of air.
  • the further embodiments B, C, D and E show that the transitions between the bottom region of a groove / gutter and a plateau region can also be designed in an application-specific manner by rounded wall regions or uniformly transient and, for example, these transitions can be a functional sine, logarithm or other mathematical relationship consequences.
  • FIG. 3 shows in the embodiments shown here that the deep areas and high areas of the structure differ in their altitude within the top layer 1 by 5 mm.
  • FIG. 4 visualizes a possible manufacturing method of a coating according to the invention comprising at least two layers.
  • the already described initially porous layer 2 is already arranged on a support layer not shown here and by the principle of unrolling the uppermost layer 1, of a winding, not shown here, this layer 1 is arranged on the layer 2 and connected to it, wherein the connection is permeable to air, and thus sound permeable, at least in the region of the passage openings.
  • the first layer according to the invention has two different types of deep regions, the deep regions 1b, as described above, merely for this purpose serve to reduce the noise emission and continue to deep areas 1b 'are provided, which have a greater depth than the aforementioned low areas 1b, so that at the location of deeper deep areas 1b' or groove / gutters, the material thickness MD of the top layer 1 even further reduced is, as is the case with the other grooves / grooves or deep regions 1b. Accordingly, the uppermost layer 1 can be bent in these strongly thinned zones 1d, so that during winding a winding results that is essentially wound polygonal.
  • the reinforcement element 4 is embedded in the uppermost layer 1 in a region between the underside and the deepest of the deep regions 1b ', ie here the bottom of the regions 1b'. Accordingly, these regions 1d essentially form joint-like connecting regions which ensure the ability to wind and unwind the uppermost layer 1 without it breaking at these locations. At least the uppermost layer 1 can therefore be prefabricated and transported as a finished roll to the construction site and there unwound on the already applied layer 2 and connected to this air permeable.
  • the layer 2 may also be provided according to the invention to produce the layer 2 as a prefabricated winding and also roll off at the site of the construction site, preferably in the carriageway width, in particular in the same width as in the layer 1 on a carrier layer of the traffic route and connect to the carrier layer.
  • the FIG. 4 shows for simplicity not the respective through holes, which are provided in order to ensure an air- and thus sound-permeable connection through the uppermost layer 1 to the layer 2.
  • these through-openings are also arranged in the bottom regions of the deep regions 1b and 1b ', and thus essentially in the lower regions of the grooves / grooves, also in the embodiment shown here.
  • FIG. 4 visualizes beyond that the structure of a coating according to the invention, in particular the top layer of the lining is subdivided at least in the direction of travel in individual structural modules 1e, wherein a module extends between two deepest deep grooves forming 1b ', where angling is possible.
  • deep areas or grooves / grooves may be provided in this section, which then cut the grooves / grooves 1b and 1b 'shown here in section.
  • deep areas or grooves / grooves may be provided in this section, which then cut the grooves / grooves 1b and 1b 'shown here in section.
  • Also in this direction of travel or at an angle between 0 and 45 ° thereto may preferably be provided a plurality of such parallel grooves / grooves, in which also such grooves may be provided which have a higher depth than the surrounding grooves, so that a module formation not only in the direction of travel but also perpendicular or transverse thereto through this deepest grooves / groove 1b 'is given.
  • FIG. 4 further visualizes that from module 1e to module 1e, that is, separated by the deepest grooves 1b ', each formed within a module structure, that is, the sequence of high and low regions, may be formed differently, in particular the width of the high areas at constant width of the low ranges varies. As a result, at least in the direction of travel preferably also transversely, in particular also perpendicular thereto, the emergence of a periodicity and consequent noise emissions is prevented.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Description

Die Erfindung betrifft einen Belag eines Verkehrsweges, wie beispielsweise einer Straße, insbesondere der auf eine tragende Schicht eines Verkehrsweges aufgebracht ist, wie beispielsweise auf einen üblichen Asphalt- beziehungsweise Betonunterbau und der einen Schichtaufbau aus wenigstens zwei übereinander angeordneten Schichten aufweist, wobei der Schichtaufbau eine oberste Schicht aufweist, die einen durch Fahrzeuge kontaktierten Fahrbelag bildet, der eine Hochbereiche und Tiefbereiche bildende Struktur aufweist und wenigstens eine unter der obersten Schicht angeordnete offenporige Schicht aufweist, insbesondere die aus einem offenporig gebundenen Granulat gebildet ist, wobei die den Fahrbelag bildende oberste Schicht in den Tiefbereichen der Struktur Durchgangsöffnungen aufweist, die sich jeweils, insbesondere vertikal, durch die oberste Schicht hindurch bis zu der wenigstens einen offenporigen Schicht erstrecken, wobei die Tiefbereiche durch die Bodenbereiche von in der obersten Schicht verlaufenden, nach oben offenen Rinnen/Nute ausgebildet sind, insbesondere die sich kreuzen und zumindest ein Teil der Rinnen/Nute senkrecht zur Erstreckungsrichtung / Fahrtrichtung der obersten Schicht orientiert sind, insbesondere über die gesamte Breite der Schicht verlaufen. Die Erfindung betrifft weiterhin auch ein Verfahren zur Herstellung eines solchen Belages.The invention relates to a pavement of a traffic route, such as a road, in particular applied to a load-bearing layer of a traffic route, such as on a conventional asphalt or concrete substructure and having a layer structure of at least two superimposed layers, wherein the layer structure is a topmost Layer having a contacted by vehicles driveway, which has a high ranges and deep structures forming structure and has at least one arranged under the top layer open-pore layer, in particular which is formed from an open-pore bound granules, wherein the driving surface forming the top layer in the Deep regions of the structure has through openings, each extending, in particular vertically, through the uppermost layer to the at least one open-pored layer, wherein the deep areas through the bottom portions of in the uppermost Layer running, upwardly open grooves / grooves are formed, in particular intersect and at least a part of the grooves / groove are oriented perpendicular to the extension / direction of travel of the uppermost layer, in particular over the entire width of the layer. The invention further relates to a method for producing such a coating.

Im Stand der Technik ist bekannt, dass Verkehrswege, wie beispielsweise durch Fahrzeuge benutzte Straßen, eine signifikante Lärmquelle darstellen. Der Lärm entsteht einerseits durch die Motorengeräusche der Fahrzeuge, zu einem großen Anteil jedoch auch durch die Wechselwirkung zwischen Verkehrsweg und den Reifen der Fahrzeuge. So ist es bekannt, dass durch das Abrollen von Reifen auf Verkehrswegen sowohl ein Geräusch entsteht, das durch Reifenschwingungen erzeugt wird als auch ein Geräusch durch Luftverdrängung und somit ebenso zur Schallemission beiträgt.It is known in the art that traffic routes, such as roads used by vehicles, represent a significant source of noise. The noise is caused on the one hand by the engine noise of the vehicles, to a large extent, however, also by the interaction between the traffic route and the tires of the vehicles. So it is known that by rolling tires up Traffic noise both caused by tire vibrations and noise due to air displacement and thus contributes to the sound emission.

Es sind im Stand der Technik Anstrengungen unternommen worden, um Beläge von Verkehrswegen derart zu gestalten, dass die Schallbelästigung in der Umgebung verringert wird. Diese Anstrengungen beruhen im Wesentlichen darauf, die Schallabsorptionsfähigkeit der Verkehrswege zu verbessern und so in der Umgebung die Schallpegel zu reduzieren.Efforts have been made in the prior art to make pavements of traffic routes such that the noise pollution in the environment is reduced. These efforts are essentially based on improving the sound absorption capacity of the traffic routes and thus reducing noise levels in the surrounding area.

Hierbei zeigt sich jedoch im Stand der Technik, dass man einen Kompromiss eingehen muss zwischen guter Schallabsorption einerseits und andererseits einer genügenden Dauerhaftigkeit eines solchen Belages von Verkehrswegen.However, this shows in the prior art that one must enter into a compromise between good sound absorption on the one hand and on the other hand a sufficient durability of such a layer of traffic routes.

Darüber hinaus erschöpfen sich die bisherigen Konzepte darin, den entstandenen Schall zu absorbieren und hierdurch die Lärmbelästigung in der Umgebung zu reduzieren. Dies ist weiterhin auch nur von eingeschränkter Dauer.In addition, the previous concepts are exhausted to absorb the resulting sound and thereby reduce the noise pollution in the environment. This is also of limited duration.

Verkehrswege solcher Art sind z.B. bekannt aus BE 826 417 A1 , DE 91 16 773 U1 und DE 295 18 977 U1 . US 6 206 607 B1 offenbart weiterhin die Aufwickelbarkeit des obersten Belages eines Verkehrsweges, der in sich insgesamt genügend flexibel ist und keine Rillenstruktur aufweist. Die Publikation WO 99/20842 A1 offenbart ebenfalls einen Belag eines Verkehrsweges, jedoch ohne eine Hoch- und Tiefbereiche bildende Struktur.Traffic routes of this kind are known, for example BE 826 417 A1 . DE 91 16 773 U1 and DE 295 18 977 U1 , US Pat. No. 6,206,607 B1 further discloses the windability of the topmost cover of a traffic route, which is sufficiently flexible in its entirety and has no groove structure. The publication WO 99/20842 A1 also discloses a pavement of a traffic route, but without a high and low forming structure.

Es ist daher die Aufgabe der Erfindung, einen Belag für Verkehrswege bereitzustellen, der zum einen eine hohe Absorptionsfähigkeit für bereits entstandenen Schall aufweist, diese hohe Absorptionsfähigkeit mit einer hohen Dauerhaftigkeit kombiniert und darüber hinaus auch dazu beiträgt, die Schallentstehung, insbesondere die Schallentstehung bei einer Wechselwirkung zwischen Reifen der Fahrzeuge und dem Belag zu reduzieren. Weiterhin soll ein Verfahren zur wirtschaftlichen Herstellung durch die Ermöglichung einer Vorfertigung eines solchen Belages bereitgestellt werden.It is therefore an object of the invention to provide a pavement for traffic routes, on the one hand has a high absorption capacity for already formed sound, combined this high absorption capacity with a high durability and beyond also contributes to the generation of sound, especially the generation of sound in an interaction between tires of the vehicles and the lining. Furthermore, a method for economic production by enabling a prefabrication of such a coating is to be provided.

Diese Aufgabe wird erfindungsgemäß durch einen Belag eines Verkehrsweges gelöst, bei dem zumindest ein Teil der senkrecht zur Erstreckungsrichtung / Fahrtrichtung der obersten Schicht orientierten Rinnen/Nute, insbesondere jede n-te mit n>1, eine größere Tiefe aufweist als die übrigen Rinnen/Nute, derart, dass die oberste Schicht vor einer Verbindung zur offenporigen Schicht in diesen tieferen Rinnen/Nute zumindest teilweise abwinkelbar und somit in Bahnabschnitten aufwickelbar ist und/oder von einem Wickel abwickelbar ist.This object is achieved by a covering of a traffic route, wherein at least a portion of the perpendicular to the direction of extension / direction of travel of the uppermost layer oriented grooves / grooves, in particular every nth with n> 1, has a greater depth than the other grooves / groove in such a way that the uppermost layer is at least partially angled away from a connection to the open-pored layer in these deeper grooves / grooves and thus can be wound up in web sections and / or unwound from a winding.

Die Erfindung wird weiterhin gelöst durch ein Verfahren zur Herstellung eines Belages für Verkehrswege der vorgenannten Art, bei welchem auf einer vorbereiteten tragenden Schicht des Verkehrsweges wenigstens eine offenporige Schicht von einem vorgefertigten Wickel abgewickelt und mit der tragenden Schicht des Verkehrswegs oder einer anderen offenporigen Schicht verbunden wird und auf dieser wenigstens einen offenporigen Schicht die oberste den Fahrbelag bildende Schicht mit einer Hochbereiche und Tiefbereiche bildenden Struktur, in deren Tiefbereichen Durchgangsöffnungen angeordnet sind von einem vorgefertigten Wickel abgewickelt und mit der offenporigen Schicht zumindest in den Durchgangsöffnungen luftdurchlässig verbunden, insbesondere stoffschlüssig verbunden wird..The invention is further achieved by a method for producing a covering for traffic routes of the aforementioned type, in which at least one open-pored layer of a prefabricated winding is unwound and connected to the supporting layer of the traffic route or another open-pored layer on a prepared supporting layer of the traffic route and on this at least one open-pored layer, the uppermost the tread-forming layer with a high areas and deep structures forming structure, in the deep areas through holes are arranged unwound from a prefabricated winding and air-permeable connected to the open-pore layer at least in the through holes, in particular cohesively connected.

Der wesentliche Kerngedanke der Erfindung beruht bei dem eingangs genannten erfindungsgemäßen Belag auf dem wenigstens zwei Schichten aufweisenden Schichtaufbau.The essential core idea of the invention is based on the coating according to the invention mentioned above on the layer structure comprising at least two layers.

Hier ist es erfindungsgemäß vorgesehen, dass die wenigstens eine oberste, den Fahrbelag bildende Schicht, die unmittelbar mit den Reifen in Kontakt kommt, eine Strukturierung aufweist, bei welcher zumindest in Fahrtrichtung, bevorzugt auch quer, insbesondere senkrecht dazu sich die Struktur durch sich abwechselnde Hoch- und Tiefbereiche ergibt, so dass durch eine solche oberste Schicht die Erzeugung von Schall reduziert wird, nämlich insbesondere von solchem Schall, der durch die Kompression von Luft zwischen Reifen und Fahrbelag entsteht.Here, according to the invention, it is provided that the at least one upper layer forming the driving surface, which comes into direct contact with the tire, has a structure in which, at least in the direction of travel, preferably also transversely, in particular perpendicularly, the structure is characterized by alternating highs and low ranges, so that the generation of sound is reduced by such an uppermost layer, namely in particular of such sound, which results from the compression of air between the tire and the driving surface.

So rollen die Reifen auf den Hochbereichen der Struktur ab und die Tiefbereiche tragen in der Struktur dazu bei, dass eine Kompression von Luft zwischen Reifen und Fahrbelag verringert wird, da die Luft innerhalb der Tiefbereiche entweichen kann. Zischgeräusche, die sonst bei der Kompression von Luft zwischen Reifen und Fahrbelag entstehen, werden so nachhaltig reduziert.Thus, the tires roll on the high areas of the structure and the low areas contribute in the structure to a compression of air between tires and driving surface is reduced, since the air can escape within the deep areas. Hissing noise, which otherwise results from the compression of air between tires and road surfaces, is thus sustainably reduced.

Unter einem Tiefbereich wird hier ein solcher Bereich der obersten Schicht verstanden, der in seiner Höhenlage unterhalb der Hochbereiche der Struktur liegt und der somit von den Reifen beim Abrollen auf der Struktur nicht kontaktiert wird.Under a deep area is here understood such an area of the uppermost layer, which lies in its altitude below the high areas of the structure and thus is not contacted by the tires when rolling on the structure.

Der Effekt der Reduzierung der Schallentstehung durch die Strukturierung der obersten Schicht ist erfindungsgemäß kombiniert mit der Absorption von entstandenem Schall, nämlich dadurch, dass diese oberste den Fahrbelag bildende Schicht zumindest partiell luftdurchlässig und somit durchlässig für den Schall mit wenigstens einer darunter angeordneten offenporigen Schicht verbunden ist.The effect of reducing the generation of sound by the structuring of the uppermost layer is combined with the absorption of resulting sound, namely the fact that this uppermost layer forming the driving surface is at least partially permeable to air and thus permeable to sound with at least one open-pored layer arranged underneath ,

Beim Abrollen der Reifen auf der obersten Schicht dennoch entstandener Schall kann demnach durch die Durchgangsöffnungen der obersten Schicht hindurch ungehindert direkt in die darunterliegende offenporige Schicht eintreten, die aufgrund ihrer Offenporigkeit und der demnach großen Anzahl von verbundenen Hohlräumen, schallabsorbierend wirkt, weil sich der Schall darin totläuft und nach mehrfacher Reflexion und Absorption nicht wieder den Weg zurück zur Oberfläche findet.When rolling the tires on the top layer nevertheless incurred sound can thus freely through the through holes of the uppermost layer enter directly into the underlying open-pore layer, which due to their open porosity and the accordingly large number of connected cavities, sound-absorbing acts because the sound in it runs dead and after multiple reflection and absorption does not find its way back to the surface.

Ein wesentlicher Vorteil der Erfindung ergibt sich gerade auch dadurch, dass bei diesem wenigstens zweischichtigen Aufbau des Belages eines Verkehrsweges, jede der wenigstens zwei Schichten hinsichtlich seiner jeweiligen Eigenschaften optimiert werden kann.An essential advantage of the invention results precisely from the fact that in this at least two-layer structure of the lining of a traffic route, each of the at least two layers can be optimized in terms of their respective properties.

So kann die oberste, den Fahrbelag bildende Schicht optimiert werden einerseits hinsichtlich der Reduzierung von Schallentstehung und andererseits auch hinsichtlich der Dauerhaftigkeit dieser Schicht insbesondere so, dass beispielsweise im Vergleich zu der wenigstens einen darunter angeordneten offenporigen Schicht, härtere dauerhaftigere Materialien zum Einsatz kommen können.Thus, the uppermost layer forming the driving surface can be optimized, on the one hand, with regard to the reduction of sound generation and, on the other hand, also with regard to the durability of this layer, in particular in such a way that harder more durable materials can be used in comparison with the at least one open-pored layer arranged underneath.

In der wenigstens einen darunter angeordneten offenporigen Schicht kann eine Optimierung hinsichtlich der Schallabsorption vorgenommen werden, wobei entgegen den bisherigen Problemen im Stand der Technik, eine solche Optimierung nicht zum Nachteil der Dauerhaftigkeit stattfinden muss, da diese Dauerhaftigkeit durch die darüber liegende lastverteilend wirkende oberste Schicht erfindungsgemäß realisiert ist.In the at least one open-pore layer arranged underneath, an optimization with regard to the sound absorption can be carried out, whereby, contrary to the previous problems in the prior art, such an optimization does not have to take place to the detriment of the durability, since this durability according to the invention by the overlying load distributing uppermost layer is realized.

So kann die offenporige Schicht unter der obersten, den Fahrbelag bildenden und die Struktur aufweisenden Schicht im Vergleich zu dieser deutlich weicher und mit einem großen Hohlraumanteil gestaltet sein, ohne hierdurch einer erhöhten Abnutzung zu unterliegen, da sie geschützt unter der obersten Schicht angeordnet ist.Thus, the open-pore layer under the uppermost turf-forming and structural layer can be made significantly softer and with a large void content compared to it, without thereby being subject to increased wear, as it is protected under the uppermost layer.

Beispielsweise kann es vorgesehen sein, für die wenigstens eine offenporige Schicht ein offenporig gebundenes Gummigranulat einzusetzen. Als Bindemittel können für diesen Belag beispielsweise Harze beziehungsweise Kunststoffe, wie Epoxidharze oder Polyurethane verwendet werden. Bei diesem oder auch anderen Materialauswahlen kann beispielsweise größer 20 Vol.% an Hohlräumen in dieser Schicht realisiert sein und somit eine gute Schallabsorption für denjenigen Schall aufweisen, der durch die Durchgangsöffnungen im obersten Belag in diese schallabsorbierende offenporige Schicht eindringt.For example, it may be provided to use an open-pore rubber granulate for the at least one open-pored layer. For example, resins or plastics such as epoxy resins or polyurethanes can be used as binders for this covering. In this or other material choices, for example, greater than 20 vol.% Of cavities in this layer can be realized and thus have a good sound absorption for those sound that penetrates through the through holes in the topmost coating in this sound-absorbing open-pore layer.

Ein weiterer Vorteil des erfindungsgemäßen, wenigstens zweischichtigen Belages ist in der erfindungsgemäßen Herstellung eines solchen Belages zu erkennen, da zumindest die oberste, den Fahrbelag bildende und die Strukturen mit Durchgangsöffnungen aufweisende Schicht vorgefertigt werden kann, beispielsweise in Fahrbahnbreite zu einem Wickel aufgewickelt ist und nach Erstellung wenigstens einer offenporigen Schicht auf einer Tragschicht eines Verkehrsweges auf dieser wenigstens einen offenporigen Schicht abgewickelt und mit dieser, zumindest in den Bereichen der Durchgangsöffnungen luftdurchlässig verbunden wird, um den Schalldurchtritt durch die oberste Schicht in die darunter liegende offenporige Schicht zu ermöglichen.Another advantage of the invention, at least two-layer coating can be seen in the production of such a coating according to the invention, since at least the top, the driving surface forming and the structures having through-holes layer can be prefabricated, for example, in the carriageway width is wound into a winding and after creation at least one open-pored layer on a support layer of a traffic route unwound on this at least one open-pored layer and air-permeable, at least in the areas of the passage openings, to allow the passage of sound through the uppermost layer into the underlying open-pore layer.

Die Erfindung kann hier vorsehen, dass im erfindungsgemäßen Belag nicht nur eine einzige schallabsorbierende offenporige Schicht vorgesehen ist, sondern gegebenenfalls mehrere solcher offenporiger Schichten, z.B. mit unterschiedlichen Porositäten bzw. Hohlraumanteilen und/oder Materialzusammensetzungen.The invention can provide here that not only a single sound-absorbing open-pored layer is provided in the covering according to the invention, but optionally several such open-pored layers, e.g. with different porosities or void fractions and / or material compositions.

Zusätzlich zu dem erfindungsgemäßen Verfahren, wenigstens die oberste, den Fahrbelag bildende Schicht auf einem Wickel vorgefertigt vorzuhalten, kann die Erfindung ebenso vorsehen, die wenigstens eine offenporige Schicht auf einem vorgefertigten Wickel bereitzustellen, so dass ein erfindungsgemäßer Belag eines Verkehrsweges durch aufeinander folgendes Abwickeln dieser wenigstens zwei vorhandenen Schichten hergestellt werden kann.In addition to the method according to the invention, vorzubhalten at least the top, the driving surface forming layer prefabricated on a winding, the invention may also provide to provide at least one open-pored layer on a prefabricated winding, so that an inventive coating of a traffic route by successively unwinding this at least two existing layers can be made.

Der erfindungsgemäße Belag kann vorsehen, dass die einzelnen Hochbereiche der Struktur, die als obere Enden von Stegen oder auch von Vorsprüngen verstanden werden können, jeweils ein ebenes Plateau aufweisen, wobei bevorzugt die Plateaus aller Hochbereiche in derselben Ebene liegen. Hierdurch wird erreicht, dass beim Abrollen von Reifen auf den Hochbereichen der Struktur nur geringere Schwingungen des Reifens entstehen.The covering according to the invention can provide that the individual high regions of the structure, which can be understood as upper ends of webs or protrusions, each have a flat plateau, the plateaus of all the upper regions preferably lying in the same plane. This ensures that when rolling tires on the high regions of the structure only lower vibrations of the tire arise.

Ebenso kann es vorgesehen sein, pro betrachteter Flächeneinheit eines erfindungsgemäßen Belages, die Plateauflächenanteile größer zu gestalten als die Flächenanteile, die durch Tiefbereiche in der betrachteten Flächeneinheit eingenommen werden. Die durch eine solche oberste Schicht gebildete Fläche ist somit überwiegend, d.h. zu größer 50 %, geschlossen.Likewise, it can be provided to make the plateau surface portions larger per unit area considered for a covering according to the invention than the surface areas which are occupied by deep areas in the considered area unit. The area formed by such topmost layer is thus predominantly, i. to more than 50%, closed.

Um eine solche Struktur auszubilden, die zumindest in Fahrtrichtung abwechselnd aufeinanderfolgende Hochbereiche und Tiefbereiche aufweist, gegebenenfalls auch in einer Richtung quer, insbesondere senkrecht hierzu, sieht es die Erfindung vor, dass die Tiefbereiche durch die Bodenbereiche und Wandbereiche von in der obersten Schicht verlaufenden, nach oben offenen Rinnen beziehungsweise Nute ausgebildet sind,In order to form such a structure, which has at least alternately successive high regions and deep regions in the direction of travel, if necessary also in a direction transversely, in particular perpendicular thereto, the invention provides that the deep regions pass through the bottom regions and wall regions of in the uppermost layer are formed above open channels or grooves,

So weist die oberste Schicht zumindest eine Vielzahl von Rinnen/Nute auf, die zueinander in einer ersten Richtung senkrecht zur Fahrtrichtung parallel verlaufen.Thus, the uppermost layer has at least a multiplicity of grooves / grooves which run parallel to one another in a first direction perpendicular to the direction of travel.

Es kann auch eine weitere Vielzahl von parallelen Rinnen und / Nute vorgesehen sein, die zumindest überwiegend in Fahrtrichtung, d.h. in einem Winkel kleiner 45 Grad zur Fahrtrichtung oder genau in Fahrtrichtung verlaufen. Durch diese zwei richtungsverschiedenen parallelen Nute / Rinnen entstehen sodann in der obersten Schicht sich kreuzende Rinnen/Nute.There may also be provided a further plurality of parallel grooves and / grooves, at least predominantly in the direction of travel, i. at an angle of less than 45 degrees to the direction of travel or exactly in the direction of travel. Through these two different directional parallel grooves / grooves then arise in the top layer intersecting grooves / grooves.

Bei einer solchen Ausführungsform sind die Durchgangsöffnungen in den Bodenbereichen der nach oben offenen Rinnen beziehungsweise Nuten ausgebildet und bevorzugt zumindest an den Orten, an denen sich Rinnen beziehungsweise Nute kreuzen.In such an embodiment, the passage openings are formed in the bottom regions of the upwardly open grooves or grooves and preferably at least at the locations at which grooves or grooves intersect.

Die Übergänge zwischen den Tiefbereichen und den Hochbereichen, insbesondere zwischen den Plateaus der Hochbereichen und den Bodenbereichen der Tiefbereiche der Rinnen/Nute, können linear, gestuft, bevorzugt jedoch gerundet, ineinander übergehend ausgebildet sein.The transitions between the deep regions and the high regions, in particular between the plateaus of the high regions and the bottom regions of the deep regions of the grooves / grooves, may be linear, stepped, but preferably rounded, merging into one another.

Die Erfindung sieht vor, dass zumindest ein Teil der Rinnen/Nute senkrecht zur Erstreckungsrichtung beziehungsweise Fahrtrichtung der obersten Schicht orientiert sind. Eine vorteilhafte Ausführung kann hier vorsehen, dass zumindest ein Teil der Rinnen/Nute sich über die gesamte Breite der obersten Schicht erstreckt.The invention provides that at least part of the grooves / grooves are oriented perpendicular to the extension direction or direction of travel of the uppermost layer. An advantageous embodiment can provide here that at least part of the grooves / groove extends over the entire width of the uppermost layer.

Sofern bei der erfindungsgemäßen Ausgestaltung der Struktur einander kreuzende Rinnen/Nute vorgesehen sind, kann es vorgesehen sein, dass zusätzlich zu denjenigen parallelen Rinnen und Nuten, die sich über die gesamte Breite der obersten Schicht erstrecken, weitere andere parallele Rinnen/Nute vorhanden sind, die zumindest im Wesentlichen in der Erstreckungsrichtung/Fahrtrichtung der obersten Schicht oder in einem Winkel hierzu angeordnet sind und hierbei weiterhin bevorzugt sich ununterbrochen erstrecken, insbesondere ununterbrochen über die zusammenhängende Abschnittslänge eines aufgewickelten Abschnittes dieser obersten Schicht.If intersecting grooves / grooves are provided in the inventive design of the structure, it may be provided that in addition to those parallel grooves and grooves that extend over the entire width of the uppermost layer, other other parallel grooves / grooves are present at least substantially in the extension direction / direction of travel of the uppermost layer or at an angle thereto and further preferably extend uninterrupted, in particular continuously over the continuous section length of a wound portion of this uppermost layer.

Die Anordnung von zumindest einem Teil der Rinnen/Nute senkrecht zur Erstreckungsrichtung/Fahrtrichtung der obersten Schicht hat neben dem Vorteil der reduzierten Lärmentstehung den weiteren Vorteil, dass die Dicke der obersten Schicht am jeweiligen Ort der Rinnen/Nute signifikant verringert ist und hierdurch eine mögliche Ausführungsform bereits vorsehen kann, dass die oberste Schicht des erfindungsgemäßen Belages in den Bereichen dieser sich über die gesamte Breite der Schicht verlaufenden Rinnen/Nuten um die Erstreckungsrichtung der Nute / Rinnen herum abwinkelbar und somit in Bahnabschnitten auf einem Wickel aufwickelbar beziehungsweise von einem solchen Wickel auch abwickelbar sind, wobei die Wickelachse demnach senkrecht zur Fahrtrichtung liegt.The arrangement of at least a part of the grooves / groove perpendicular to the extension / direction of travel of the uppermost layer has the advantage The reduced noise generation has the further advantage that the thickness of the uppermost layer is significantly reduced at the respective location of the grooves / grooves and thus a possible embodiment can already provide that the uppermost layer of the coating according to the invention in the areas thereof over the entire width of the layer extending grooves / grooves around the direction of extension of the groove / grooves around bendable and thus in web sections on a winding wound up or can be unwound from such a winding, the winding axis is therefore perpendicular to the direction of travel.

Sofern die Tiefe der hier vorgesehenen Rinnen/Nute zwar tief genug gewählt ist, um die Schallentstehung zu reduzieren, jedoch nicht tief genug, um eine Aufwickelbarkeit zu einem Wickel zu gewährleisten, sieht die Erfindung vor, dass zumindest ein Teil der senkrecht zur Erstreckungsrichtung/Fahrtrichtung der obersten schichtorientierten Nute/Rinnen, insbesondere jede n-te Nut/Rinne mit n > 1 eine größere Tiefe aufweist, als die übrigen Rinnen/Nute.Although the depth of the grooves / groove provided here is indeed chosen deep enough to reduce the generation of sound, but not deep enough to ensure a windability to a winding, the invention provides that at least a portion of the perpendicular to the extension / direction of travel the uppermost layer-oriented grooves / grooves, in particular every n-th groove / channel with n> 1, has a greater depth than the remaining grooves / grooves.

So wird bewirkt, dass die oberste Schicht zumindest am Ort dieser mit größerer Tiefe ausgestatteten Rinnen/Nute zumindest teilweise abwinkelbar und somit in Bahnabschnitten aufwickelbar beziehungsweise von einem Wickel abwickelbar ist.This causes the uppermost layer to be at least partially deflectable and thus developable in web sections or unwindable from a winding, at least at the location of this channel / groove provided with greater depth.

In der Erstreckungsrichtung der obersten Schicht und somit in der späteren Fahrtrichtung der Fahrzeuge sind also zumindest die über die gesamte Breite der Schicht verlaufenden Rinnen/Nute somit funktional unterteilt in solchen Rinnen/Nute, die lediglich der Lärmreduzierung dienen und in solche Nute, die sowohl der Lärmreduzierung dienen als auch der Bereitstellung der Aufwickelbarkeit dieser obersten Schicht. Es kann hierdurch eine Vorfertigung dieser obersten Schicht in einer Fabrik stattfinden kann, um sodann ein solches vorgefertigtes Wickel zur Baustelle zu transportieren und auf einer offenporigen Schicht in Fahrrichtung abzuwickeln und mit dieser zu verbinden.In the direction of extension of the uppermost layer and thus in the later direction of travel of the vehicles so at least over the entire width of the layer extending gutters / grooves are thus divided functionally in such grooves / grooves, which serve only to reduce noise and in such groove, both the Noise reduction serve as well as providing the windability of this topmost layer. It can thereby take place a prefabrication of this uppermost layer in a factory, to then transport such a prefabricated winding to the site and unwind on an open-pored layer in the direction of travel and to connect with this.

Erfindungsgemäß kann es hier vorgesehen sein, dass die eingangs genannten Durchgangsöffnungen, die bewirken, dass Schall vom Ort der Entstehung zwischen den Reifen und der obersten Schicht direkt durch diese Durchgangsöffnungen in die offenporige Schicht hineintreten in beiden Arten von Rinnen/Nuten angeordnet sind.According to the invention, it can be provided here that the passage openings mentioned at the outset, which cause sound from the place of origin between the tires and the uppermost layer to pass directly through them Through openings in the open-pored layer are arranged in both types of grooves / grooves are arranged.

Durch die Unterteilung der obersten, den Fahrbelag bildenden Schicht durch die beiden funktionell unterschiedlichen Nut-/Rinnenarten kann auch eine Unterteilung in Strukturmodule vorgenommen sein, wenn nämlich diese zwei Arten unterschiedlich tiefer und zueinander paralleler Nuten/Rinnen nicht nur über die Breite der obersten Schicht und somit senkrecht zur Fahrtrichtung vorgesehen ist, sondern auch zumindest im Wesentlichen in Fahrtrichtung bzw. in einem Winkel (insbesondere kleiner 45 Grad) hierzu oder genau in Fahrtrichtung. Es ergeben sich hierdurch die zwei verschiedenen Rinnen- / Nutarten in zwei verschiedenen Richtungen.By subdividing the uppermost layer forming the driving surface through the two functionally different groove / channel types, a subdivision into structural modules can also be made, namely if these two types of differently deep and mutually parallel grooves / channels not only across the width of the uppermost layer and is thus provided perpendicular to the direction of travel, but also at least substantially in the direction of travel or at an angle (in particular less than 45 degrees) to this or exactly in the direction of travel. This results in the two different gutter / groove types in two different directions.

Es kann sich sodann bei bevorzugt äquidistantem Abstand der tieferen der beiden Rinnenarten, in zwei voneinander verschiedenen Richtungen jeweils eine Periodizität, ggfs. in beiden Richtungen gleiche Periodizität von diesen tieferen Nuten und Rinnen ergeben.It may then result in preferably equidistant distance of the deeper of the two gutter types, in two mutually different directions each have a periodicity, if necessary. In both directions equal periodicity of these deeper grooves and grooves.

Ein Strukturmodul kann dann ein solcher Flächenbereich der obersten Schicht sein, der in den beiden verschiedenen Richtungen durch zwei parallele tiefere Rinnen / Nuten umschlossen ist. Innerhalb eines solchen Strukturmoduls kann die Struktur gleich sein, von Modul zu Modul jedoch entweder gleich oder auch bevorzugt verschieden, z.B. dadurch, dass der Abstand der zwischen den tieferen Rinnen / Nuten liegenden ausschließlich schallreduzierenden Nuten / Rinnen mit der geringeren Tiefe von Modul zu Modul unterschiedlich ist.A structural module may then be such a surface area of the uppermost layer, which is enclosed in the two different directions by two parallel deeper grooves / grooves. Within such a structural module, the structure may be the same, but from module to module either the same or even different, e.g. in that the distance of the exclusively sound-reducing grooves / channels lying between the deeper grooves / grooves with the smaller depth is different from module to module.

Da, wie eingangs beschrieben, durch die Tiefbereiche in der erfindungsgemäßen Struktur eine Dickenreduzierung entsteht, die besonders bei einem Vorsehen von den besonderen Nuten mit besonders großer Tiefe an deren Orten noch weiter reduziert ist, kann eine Weiterbildung der Erfindung vorsehen, dass zur Bewehrung der obersten Schicht des erfindungsgemäßen Belages in diese oberste Schicht ein Bewehrungselement eingebettet ist, beispielsweise ein textiles Gewebe oder Gewirk.Since, as described above, by the deep areas in the structure according to the invention, a reduction in thickness is created, which is further reduced even at a provision of the special grooves with particularly great depth at their locations, a further development of the invention provide that the reinforcement of the top Layer of the coating according to the invention in this top layer a reinforcing element is embedded, for example, a textile fabric or knitted fabric.

Ein solches textiles Element oder sonstiges Bewehrungselement kann bevorzugt in einem Bereich zwischen der Unterfläche der zuvor beschriebenen obersten Schicht des erfindungsgemäßen Belages und den tiefsten der Tiefbereiche angeordnet sein, insbesondere mittig in diesem Bereich.Such a textile element or other reinforcing element may preferably be arranged in a region between the lower surface of the above-described uppermost layer of the lining according to the invention and the deepest of the deep regions, in particular centrally in this region.

So wird trotz der Stabilität, insbesondere der Härte der obersten Schicht gegenüber der wenigstens einen darunterliegenden offenporigen Schicht und der Verdünnung dieser Schicht in den Nut-/Rinnenbereichen durch ein solches Bewehrungselement, insbesondere textiles Element, ein Brechen dieser Schicht, insbesondere beim Vorgang des Auf- und Abwickelns wirkungsvoll verhindert.Thus, in spite of the stability, in particular the hardness of the uppermost layer with respect to the at least one underlying open-pored layer and the thinning of this layer in the groove / gutter areas by such a reinforcing element, in particular a textile element, breaking of this layer, in particular during the process of setting up and unwinding effectively prevented.

Eine Weiterbildung der Erfindung kann auch vorsehen, dass sich die Strukturperiodizität von Hoch- und Tiefbereichen, insbesondere in Fahrtrichtung und/oder auch quer, insbesondere senkrecht dazu, und/oder die Anzahl der Durchgangsöffnungen pro Flächeneinheit der obersten Schicht örtlich verschieden ist, insbesondere auch dann, wenn keine Strukturmodulbildung vorliegt, wie sie zuvor beschrieben wurde.A development of the invention can also provide that the structural periodicity of high and low regions, especially in the direction of travel and / or also transversely, in particular perpendicular thereto, and / or the number of through holes per unit area of the uppermost layer is locally different, especially then if there is no structural module formation as described above.

So kann an verschiedenen Orten eines erfindungsgemäßen Belages eine Struktur unterschiedlicher Periodizität realisiert werden, um unterschiedlichen Anforderungen an Lärmentstehung beziehungsweise -Vermeidung gerecht zu werden, beispielsweise in Abhängigkeit von den jeweils örtlich gefahrenen üblichen durchschnittlichen Geschwindigkeiten.Thus, at different locations of a coating according to the invention, a structure of different periodicity can be realized in order to meet different requirements for noise generation or avoidance, for example as a function of the respectively locally driven usual average speeds.

So kann beispielsweise im Straßenverlauf im Bereich von Kreuzungen, beispielsweise an Ampeln, wo geringere Geschwindigkeiten gefahren werden als auf freier Strecke, eine andere Periodizität beziehungsweise andere Breiten von Hoch- und Tiefbereichen vorgesehen sein, um eine optimale Schallreduzierung und Absorption in Abhängigkeit der örtlich gegebenen Geschwindigkeiten zu erreichen.For example, in the course of the road in the area of intersections, for example at traffic lights, where lower speeds are driven than on the open road, a different periodicity or other widths of high and low ranges may be provided, for optimal sound reduction and absorption as a function of locally given speeds to reach.

Eine Ausführung kann weiterhin auch vorsehen, dass der Belag zumindest in Fahrtrichtung gegebenenfalls auch quer, insbesondere senkrecht hierzu, keinerleiAn embodiment may also provide that the lining at least in the direction of travel, if necessary, also transversely, in particular perpendicular thereto, no

Periodizität der Struktur aufweist, um gerade zu verhindern, dass durch solche Periodizitäten dadurch bewirkte Schallemissionen entstehen.Periodicity of the structure to just prevent that caused by such periodicities thereby caused acoustic emissions.

Der erfindungsgemäße Belag hat weiterhin den Vorteil, dass selbst bestehende Verkehrswege klassischer Bauart nachträglich mit einem erfindungsgemäßen Belag ausgestattet werden können. So kann beispielsweise ein bestehender Verkehrsweg direkt unmittelbar die Tragschicht für einen erfindungsgemäßen Belag bilden.The covering according to the invention also has the advantage that even existing traffic routes of classical design can be retrofitted with a covering according to the invention. For example, an existing traffic route directly directly form the base course for a covering according to the invention.

Die Erfindung sieht weiterhin vor, dass die oberste, den Fahrbelag bildende Schicht auf einer Kunststoffbasis, beispielsweise auch aus einer faserverstärkten Kunststoffmaterialmischung ausgebildet ist, wobei als Beispiel für einen Kunststoff zum Beispiel Acrylat Verwendung finden kann.The invention further provides that the uppermost, the driving surface forming layer is formed on a plastic base, for example, from a fiber-reinforced plastic material mixture, which can be used as an example of a plastic, for example, acrylate.

Die wenigstens eine hierunter angeordnete erfindungsgemäße offenporige Schicht kann, wie bereits eingangs erwähnt, aus einem offenporig gebundenen Gummigranulat oder einem sonstigen offenporig gebundenen Elastomer gebildet werden. Ebenso ist auch die offenporige Ausbildung aus nicht-elastomeren Materialien/Granulaten möglich.The at least one open-pored layer according to the invention arranged thereunder can, as already mentioned at the outset, be formed from an open-pored bonded rubber granulate or another open-pore bonded elastomer. Likewise, the open-pore design of non-elastomeric materials / granules is possible.

Die erfindungsgemäße Ausführung kann weiterhin vorsehen, dass die oberste, die Struktur aufweisende und den Fahrbelag bildende Schicht eine Dicke im Bereich von beispielsweise 5 bis 50 mm aufweist. Hierunter kann die wenigstens eine offenporige Schicht ausgebildet sein, die beispielsweise Dicken von wenigstens 40 mm, bevorzugt größer 50mm, aufweist.The embodiment according to the invention may further provide that the uppermost layer having the structure and forming the driving surface has a thickness in the range of, for example, 5 to 50 mm. Below this, the at least one open-pored layer may be formed which, for example, has thicknesses of at least 40 mm, preferably greater than 50 mm.

Die in der obersten Schicht gebildete Struktur kann in Fahrtrichtung und quer zur Fahrtrichtung unterschiedlich ausgebildet sein, beispielsweise kann es vorgesehen sein, dass die Plateaubereiche der Hochbereiche der Struktur quer zur Fahrtrichtung breiter sind als in Fahrtrichtung und in beiden jeweiligen Richtungen größer sind als die Abstände zwischen den Hochbereichen, insbesondere deren Plateaus. Erfindungsgemäß sind demnach die ausgebildeten Rinnen/Nuten, welche die Tiefbereiche der Struktur bilden, in Fahrtrichtung und gegebenenfalls auch quer, insbesondere senkrecht zur Fahrtrichtung, kleiner als die jeweils vorgesehenen Hochbereiche.The structure formed in the uppermost layer may be formed differently in the direction of travel and transverse to the direction of travel, for example, it may be provided that the plateau areas of the high areas of the structure are wider transverse to the direction of travel than in the direction of travel and in both directions are greater than the distances between the high areas, especially their plateaus. According to the invention, therefore, the trained grooves / grooves, which form the low regions of the structure, in the direction of travel and optionally also transversely, in particular perpendicular to the direction of travel, smaller than the respectively intended high areas.

Beispielsweise können die den Reifenkontakt aufweisenden Plateaubereiche in Fahrtrichtung eine Erstreckung von z.B. 2 bis 50 mm, bevorzugt 2 bis 20 mm, besonders bevorzugt 2 bis 10 mm, aufweisen und quer zur Fahrtrichtung z.B. eine Erstreckung von 2 bis 50 mm, bevorzugt 2 bis 20 mm und besonders bevorzugt 2 bis 10 mm.For example, the plateau regions having the tire contact in the direction of travel may have an extension of e.g. 2 to 50 mm, preferably 2 to 20 mm, particularly preferably 2 to 10 mm, and transverse to the direction of travel e.g. an extension of 2 to 50 mm, preferably 2 to 20 mm and more preferably 2 to 10 mm.

Der Tiefe der Tiefbereiche, das heißt der Höhenabstand zwischen Bodenbereich einer gebildeten Rinne/Nut am untersten Punkt eines Tiefbereiches und dem obersten Punkt, insbesondere dem Plateau eines Hochbereiches kann bevorzugt im Bereich von 2 bis 30 mm, bevorzugt > 5, besonders bevorzugt > 10 mm gewählt werden. Die Breite der Tiefbereiche und somit der Abstand zwischen benachbarten Plateaus kann z.B. im Bereich von 2 bis 30 mm, bevorzugt 2 bis 20 mm, besonders bevorzugt 2 bis 10 mm, liegen.The depth of the deep regions, that is to say the vertical distance between the bottom region of a gutter / groove formed at the lowest point of a deep region and the uppermost point, in particular the plateau of a high region, may preferably be in the range from 2 to 30 mm, preferably> 5, particularly preferably> 10 mm to get voted. The width of the deep regions, and thus the distance between adjacent plateaus, may be e.g. in the range of 2 to 30 mm, preferably 2 to 20 mm, particularly preferably 2 to 10 mm.

Sofern die Tiefbereiche der erfindungsgemäßen Struktur durch einander kreuzende Rinnen/Nute ausgebildet werden, kann die Erfindung vorsehen, dass das Kreuzen der jeweiligen Nute/Rinnen nicht nur unter einem Winkel von 90° stattfindet, sondern in anderer Ausführung unter einem anwendungsspezifisch gewählten von 90 Grad abweichenden Winkel, insbesondere der in Abhängigkeit der am Ort des Belages zu erwartenden Geschwindigkeiten gewählt wird.If the deep regions of the structure according to the invention are formed by intersecting channels / grooves, the invention can provide that the crossing of the respective grooves / channels not only takes place at an angle of 90 °, but in another embodiment under an application-specifically selected deviates from 90 degrees Angle, especially depending on the expected at the location of the lining speeds is selected.

Ein Ausführungsbeispiel der Erfindung wird anhand der nachfolgenden Figuren näher erläutert.An embodiment of the invention will be explained in more detail with reference to the following figures.

Die Figur 1 zeigt in einer seitlichen Schnittansicht einen erfindungsgemäßen, wenigstens zwei Schichten aufweisenden Belag eines Verkehrsweges.The FIG. 1 shows in a sectional side view of an inventive, at least two layers having coating of a traffic route.

Erkennbar ist hier eine oberste Schicht 1, die in dieser Schnittansicht eine Struktur aufweist mit plateaubildenden Hochbereichen 1a und jeweils dazwischen angeordneten Tiefbereichen 1b, die in Fahrtrichtung aufeinander folgen. Nicht erkennbar ist hier, dass auch senkrecht oder in einem anderen Winkel quer zur hier illustrierten Fahrtrichtung solche Hoch- und Tiefbereiche aufeinander folgen, demnach also die die Tiefbereiche 1b bildenden zueinander parallelen Rinnen/Nute in wenigstens zwei unterschiedlichen Orientierungen verlaufen, wobei wenigstens eine Orientierung bevorzugt senkrecht zur geplanten Fahrtrichtung verläuft.Visible here is a top layer 1, which has a structure in this sectional view with plateau-forming high regions 1a and in each case disposed therebetween deep areas 1b, which follow one another in the direction of travel. It is not recognizable here that even vertically or at another angle transverse to the direction of travel illustrated here, such high and low regions follow one another, Accordingly, therefore, the gutters / grooves forming the deep regions 1b run in at least two different orientations, wherein at least one orientation preferably runs perpendicular to the planned direction of travel.

Unterhalb dieser obersten Schicht 1 ist wenigstens eine darunterliegende offenporige Schicht 2 angeordnet, die z.B. aus einem offenporig gebundenen Granulat, beispielsweise einem Gummigranulat besteht. Hier kann die Ausführung derart sein, dass die Hohlräume wenigstens 20 Vol.-% dieser Schicht ausmachen.Below this uppermost layer 1 there is at least one underlying open-pored layer 2, e.g. consists of an open-pore bound granules, such as a rubber granulate. Here, the embodiment may be such that the voids make up at least 20% by volume of this layer.

Nicht dargestellt, aber grundsätzlich möglich bei der erfindungsgemäßen Ausgestaltung des Belages ist es, dass aufeinanderliegend mehrere offenporige Schichten 2 vorgesehen sein können, die sich beispielsweise hinsichtlich Ihrer Porosität, Festigkeit, Materialzusammenstellung oder sonstiger Eigenschaften unterscheiden.Not shown, but basically possible in the embodiment of the covering according to the invention is that several open-pore layers 2 can be provided on top of each other, which differ, for example, in terms of their porosity, strength, material composition or other properties.

Ungeachtet davon, ob nur eine oder mehrere offenporige Schichten 2 vorhanden sind, ist es hier vorgesehen, dass der erfindungsgemäße Belag aus den wenigstens zwei vorgenannten Schichten 1 und 2 auf einer Tragschicht 3 des Verkehrsweges angeordnet ist, wie beispielsweise einem üblichen Asphaltbeziehungsweise Betonunterbau.Regardless of whether only one or more open-pored layers 2 are present, it is provided here that the covering according to the invention of the at least two aforementioned layers 1 and 2 is arranged on a supporting layer 3 of the traffic route, such as a conventional asphalt or concrete substructure.

Die erfindungsgemäße Wirkung des Belages liegt darin, dass durch die Unterteilung der Oberfläche der obersten Schicht in Hochbereiche 1a und Tiefbereiche 1b, somit also im Wesentlichen das Vorsehen mehrerer Nuten/Rinnen in dieser Schicht, die nach oben und somit zum kontaktierenden Reifen offen sind, dass weniger Schallemission entsteht, da eine Kompression von Luft zwischen Reifen und dieser obersten Schicht durch die Möglichkeit verhindert wird, dass die Luft innerhalb der Rinnen / Nute entweichen kann.The effect of the coating according to the invention lies in the fact that the subdivision of the surface of the topmost layer into high regions 1a and deep regions 1b, thus essentially the provision of a plurality of grooves / grooves in this layer, which are open at the top and thus to the contacting tire There is less noise emission because air compression between the tire and this topmost layer is prevented by the possibility of the air within the gutter / nute escaping.

Eine weitere erfindungsgemäße Wirkung besteht darin, dass dennoch entstandener Schall durch die hier in zumindest einigen, bevorzugt allen der Tiefbereichen 1b angeordneten Durchgangsöffnungen 1c, der entstandene Schall direkt durch die oberste Schicht 1 hindurch in die poröse Schicht 2 eintreten kann und dort absorbiert wird.A further effect according to the invention consists in the fact that sound which has nevertheless formed is formed by the sound produced here in at least some passage openings 1c arranged, preferably in all of the deep areas 1b can pass directly through the uppermost layer 1 into the porous layer 2 and is absorbed there.

Der erfindungsgemäße Belag kombiniert demnach die Reduktion der Schallemission mit dem Prinzip der Schallabsorption, wobei jede der beiden hier zum Einsatz kommenden Schichten 1, 2 für ihren jeweiligen Anwendungszweck optimiert sein kann.Accordingly, the covering according to the invention combines the reduction of the acoustic emission with the principle of sound absorption, whereby each of the two layers 1, 2 used here can be optimized for their respective application purpose.

Maßgeblich ist es hierbei, dass die obere, den Fahrbelag bildende Schicht 1 neben der Reduktion der Schallemission auch hinsichtlich der Dauerhaftigkeit optimiert sein kann und hierfür beispielsweise ein Material gewählt wird, dass die Anforderungen der einschlägigen Normen, wie beispielsweise der ZTV Asphalt-STB 07, erfüllt. Dies kann beispielsweise durch Kunststoffe wie Acrylate erfolgen.Decisive here is that the upper, the driving surface forming layer 1 can be optimized in addition to the reduction of sound emission in terms of durability and this example, a material is selected that the requirements of relevant standards, such as the ZTV Asphalt STB 07, Fulfills. This can be done for example by plastics such as acrylates.

Die Figur 1 zeigt weiterhin, dass in die oberste Schicht ein Bewehrungselement 4 eingebettet sein kann, beispielsweise ein textiles Gewebe oder Gewirk, wobei die Ebene des Bewehrungselementes 4 parallel zur Unterfläche der obersten Schicht liegt.The FIG. 1 further shows that in the uppermost layer, a reinforcing element 4 may be embedded, for example a textile fabric or knitted fabric, wherein the plane of the reinforcing element 4 is parallel to the lower surface of the uppermost layer.

Die Figur 1 illustriert weiterhin, dass innerhalb einer obersten Schicht 1 die Hochbereiche der ausgebildeten Struktur in Fahrtrichtung und gegebenenfalls auch quer beziehungsweise senkrecht hierzu unterschiedliche Querschnittsfläche aufweisen können. So kann die Struktur innerhalb der Oberfläche, insbesondere innerhalb der gebildeten Plateaus, in Fahrtrichtung und/oder senkrecht beziehungsweise quer dazu, anisotrop ausgebildet sein.The FIG. 1 further illustrates that within a top layer 1, the high regions of the formed structure in the direction of travel and possibly also transversely or perpendicular thereto may have different cross-sectional area. Thus, the structure within the surface, in particular within the plateaus formed, in the direction of travel and / or perpendicular or transverse thereto, be anisotropic.

Die Figur 2 zeigt eine schematische Aufsicht auf die oberste Schicht 1 des erfindungsgemäßen Belages für Verkehrswege. Hier ist es erkennbar, dass sowohl in der angedeuteten Fahrtrichtung 5 als auch senkrecht dazu die Struktur gebildet ist durch die Hochbereiche 1a und Tiefbereiche 1b, wobei hier innerhalb der Tiefbereiche 1b, insbesondere in den jeweiligen Bodenbereichen der Nute/Rinnen Durchgangsöffnungen 1c vorgesehen sind, die einen Schallbeziehungsweise Luftdurchtritt durch die oberste Schicht 1 hindurch zu der darunterliegenden, hier nicht gezeigten, Schicht 2 ermöglichen, so dass der durch die Durchgangsöffnung 1c durchtretende Schall in dieser offenporigen Schicht 2 absorbiert wird.The FIG. 2 shows a schematic plan view of the top layer 1 of the lining according to the invention for traffic routes. Here it can be seen that in both the indicated direction of travel 5 and perpendicular thereto, the structure is formed by the high areas 1a and deep areas 1b, wherein here through holes 1c are provided within the deep areas 1b, in particular in the respective bottom areas of the grooves / grooves, the allow a Schallbeziehungsweise air passage through the uppermost layer 1 through to the underlying, not shown here, layer 2, so that the through the passage opening 1c penetrating sound is absorbed in this open-pored layer 2.

Die Figur 2 zeigt lediglich zum Prinzip der Vereinfachung eine periodische Anordnung der Struktur sowohl in Fahrtrichtung als auch senkrecht dazu, wobei es vorgesehen sein kann, dass die Strukturgröße und somit die Breite der Plateaus der Hochbereiche in Fahrtrichtung, in einem Winkel zur Fahrtrichtung sowie senkrecht zur Fahrtrichtung beziehungsweise in einem Winkel quer dazu, auch ortsabhängig verschieden ausgebildet sein kann.The FIG. 2 shows only the principle of simplification, a periodic arrangement of the structure both in the direction of travel and perpendicular to it, it can be provided that the structure size and thus the width of the plateaus of the high areas in the direction of travel, at an angle to the direction and perpendicular to the direction of travel or in an angle transverse to it, also depending on the location may be different.

Die Figur 3 zeigt in beispielhafter Darstellung mögliche geometrische Verläufe von wählbaren Strukturen. Die Variante A zeigt, dass ein Plateau P, welches den Hochbereich einer Struktur bildet, im Wesentlichen scharfkantig an einen Wandbereich W einer Nut beziehungsweise Rinne angrenzt, und dieser Wandbereich im Bodenbereich bis auf eine Restdicke von 1 mm der gebildeten erfindungsgemäßen obersten Schicht heruntergeführt ist. Wandbereich W und nicht dargestellter Bodenbereich bilden hierdurch einen Tiefbereich, der vom Reifen nicht kontaktiert ist und ein Entweichen der Luft ermöglicht.The FIG. 3 shows an example representation of possible geometric courses of selectable structures. Variant A shows that a plateau P, which forms the high region of a structure, is substantially sharp-edged adjacent to a wall region W of a groove or groove, and this wall region in the bottom region is led down to a residual thickness of 1 mm of the formed uppermost layer according to the invention. Wall area W and bottom area not shown thereby form a deep area that is not contacted by the tire and allows escape of air.

Die weiteren Ausführungen B, C, D und E zeigen, dass die Übergänge zwischen dem Bodenbereich einer Nut/Rinne und einem Plateaubereich auch anwendungsspezifisch durch gerundet ausgeführte Wandbereiche beziehungsweise gleichmäßig übergehend ausgebildet sein können und beispielsweise diese Übergänge einem funktionalen Sinus, Logarithmus oder sonstigen mathematischen Zusammenhang folgen.The further embodiments B, C, D and E show that the transitions between the bottom region of a groove / gutter and a plateau region can also be designed in an application-specific manner by rounded wall regions or uniformly transient and, for example, these transitions can be a functional sine, logarithm or other mathematical relationship consequences.

Die Figur 3 zeigt bei den hier dargestellten Ausführungen, dass sich die Tiefbereiche und Hochbereiche der Struktur in ihrer Höhenlage innerhalb der obersten Schicht 1 um 5 mm unterscheiden.The FIG. 3 shows in the embodiments shown here that the deep areas and high areas of the structure differ in their altitude within the top layer 1 by 5 mm.

Die Figur 4 visualisiert ein mögliches Herstellungsverfahren eines erfindungsgemäßen, wenigstens zwei Schichten aufweisenden Belages. Hier wird davon ausgegangen, dass die bereits eingangs beschriebene offenporige Schicht 2 bereits auf einer hier nicht weiter dargestellten Tragschicht angeordnet ist und durch das Prinzip des Abrollens der obersten Schicht 1, von einem hier nicht gezeigten Wickel, diese Schicht 1 auf der Schicht 2 angeordnet und mit dieser verbunden wird, wobei die Verbindung zumindest im Bereich der Durchgangsöffnungen luftdurchlässig und somit schalldurchlässig ist.The FIG. 4 visualizes a possible manufacturing method of a coating according to the invention comprising at least two layers. Here it is assumed that the already described initially porous layer 2 is already arranged on a support layer not shown here and by the principle of unrolling the uppermost layer 1, of a winding, not shown here, this layer 1 is arranged on the layer 2 and connected to it, wherein the connection is permeable to air, and thus sound permeable, at least in the region of the passage openings.

Um das Aufwickeln der obersten Schicht 1 erfindungsgemäß zu ermöglichen, ist es hier vorgesehen, dass zumindest senkrecht zur Fahrtrichtung und somit in Richtung der Fahrbahnbreite, die erfindungsgemäße erste Schicht zwei verschiedene Arten von Tiefbereichen aufweist, wobei die Tiefbereiche 1b, wie zuvor beschrieben, lediglich dazu dienen, die Schallemission zu reduzieren und weiterhin auch Tiefbereiche 1b' vorgesehen sind, die eine größere Tiefe als die vorgenannten Tiefbereiche 1b haben, so dass am Ort dieser tieferen Tiefbereiche 1b' beziehungsweise Nute/Rinnen, die Materialdicke MD der obersten Schicht 1 noch weiter reduziert ist, als dies bei den übrigen Rinnen/Nuten beziehungsweise Tiefbereichen 1b der Fall ist. In diesen stark verdünnten Zonen 1d ist demnach die oberste Schicht 1 abwinkelbar, so dass sich beim Aufwickeln ein Wickel ergibt, dass im Wesentlichen polygonal gewickelt ist.In order to make it possible to wind up the uppermost layer 1 according to the invention, it is provided here that at least perpendicular to the direction of travel and thus in the direction of the roadway width, the first layer according to the invention has two different types of deep regions, the deep regions 1b, as described above, merely for this purpose serve to reduce the noise emission and continue to deep areas 1b 'are provided, which have a greater depth than the aforementioned low areas 1b, so that at the location of deeper deep areas 1b' or groove / gutters, the material thickness MD of the top layer 1 even further reduced is, as is the case with the other grooves / grooves or deep regions 1b. Accordingly, the uppermost layer 1 can be bent in these strongly thinned zones 1d, so that during winding a winding results that is essentially wound polygonal.

Hier ist auch erkennbar, dass das Bewehrungselement 4 in der obersten Schicht 1 eingebettet ist in einem Bereich zwischen der Unterseite und der tiefsten der Tiefbereiche 1b', also hier dem Boden der Bereiche 1b'. Diese Bereiche 1d bilden demnach im Wesentlichen gelenkartige Verbindungsbereiche, welche die Auf- und Abwickelbarkeit der obersten Schicht 1 gewährleisten, ohne dass dieser an dieser Orten bricht. Zumindest die oberste Schicht 1 kann demnach vorgefertigt und als fertiges Wickel zur Baustelle transportiert und dort auf der bereits applizierten Schicht 2 abgewickelt und mit dieser luftdurchlässig verbunden werden.It can also be seen here that the reinforcement element 4 is embedded in the uppermost layer 1 in a region between the underside and the deepest of the deep regions 1b ', ie here the bottom of the regions 1b'. Accordingly, these regions 1d essentially form joint-like connecting regions which ensure the ability to wind and unwind the uppermost layer 1 without it breaking at these locations. At least the uppermost layer 1 can therefore be prefabricated and transported as a finished roll to the construction site and there unwound on the already applied layer 2 and connected to this air permeable.

Wenn auch nicht dargestellt, so kann es hier auch erfindungsgemäß vorgesehen sein, auch die Schicht 2 als vorgefertigten Wickel herzustellen und ebenso am Ort der Baustelle, bevorzugt in Fahrbahnbreite, insbesondere in der gleichen Breite wie auch bei der Schicht 1 auf einer Trägerschicht des Verkehrsweges abzurollen und mit der Trägerschicht zu verbinden.Although not shown, it may also be provided according to the invention to produce the layer 2 as a prefabricated winding and also roll off at the site of the construction site, preferably in the carriageway width, in particular in the same width as in the layer 1 on a carrier layer of the traffic route and connect to the carrier layer.

Die Figur 4 zeigt zur Vereinfachung nicht die jeweiligen Durchgangsöffnungen, die vorgesehen sind, um eine luft- und somit schalldurchlässige Verbindung durch die oberste Schicht 1 bis zur Schicht 2 zu gewährleisten.The FIG. 4 shows for simplicity not the respective through holes, which are provided in order to ensure an air- and thus sound-permeable connection through the uppermost layer 1 to the layer 2.

Wie eingangs beschrieben sind diese Durchgangsöffnungen auch bei der hier dargestellten Ausführung in den Bodenbereichen der Tiefbereiche 1b und 1b' und somit im Wesentlichen im unteren Bereiche der Nute/Rinnen jeweils angeordnet.As described in the introduction, these through-openings are also arranged in the bottom regions of the deep regions 1b and 1b ', and thus essentially in the lower regions of the grooves / grooves, also in the embodiment shown here.

Die Figur 4 visualisiert darüber hinaus, dass die Struktur eines erfindungsgemäßen Belages, insbesondere der obersten Schicht des Belages zumindest in Fahrtrichtung in einzelne Strukturmodule 1e unterteilt ist, wobei ein Modul sich erstreckt zwischen zwei die tiefsten Tiefbereiche bildenden Nute 1b', an denen ein Abwinkeln möglich ist.The FIG. 4 visualizes beyond that the structure of a coating according to the invention, in particular the top layer of the lining is subdivided at least in the direction of travel in individual structural modules 1e, wherein a module extends between two deepest deep grooves forming 1b ', where angling is possible.

Auch in Fahrtrichtung beziehungsweise unter einem Winkel hierzu können in dieser Schnittdarstellung nicht dargestellte Tiefbereiche beziehungsweise Rinnen/Nute vorgesehen sein, die sodann die hier im Schnitt gezeigten Nute/Rinnen 1b beziehungsweise 1b' schneiden. Auch in dieser Fahrtrichtung beziehungsweise in einem Winkel zwischen 0 und 45 ° hierzu können bevorzugt eine Vielzahl solcher paralleler Rinnen/Nute vorgesehen sein, bei denen ebenso solche Rinnen vorgesehen sein können, die eine höhere Tiefe aufweisen als die umgebenden Rinnen, so dass eine Modulbildung nicht nur in Fahrtrichtung sondern auch senkrecht beziehungsweise quer hierzu durch diese tiefsten Rinnen/Nute 1b' gegeben ist.Also in the direction of travel or at an angle thereto, not shown deep areas or grooves / grooves may be provided in this section, which then cut the grooves / grooves 1b and 1b 'shown here in section. Also in this direction of travel or at an angle between 0 and 45 ° thereto may preferably be provided a plurality of such parallel grooves / grooves, in which also such grooves may be provided which have a higher depth than the surrounding grooves, so that a module formation not only in the direction of travel but also perpendicular or transverse thereto through this deepest grooves / groove 1b 'is given.

Die Figur 4 visualisiert weiterhin, dass von Modul 1e zu Modul 1e, das heißt getrennt durch die tiefsten Rinnen 1b', die jeweils innerhalb eines Moduls ausgebildete Struktur, das heißt die Abfolge von Hoch- und Tiefbereichen, unterschiedlich ausgebildet sein kann, insbesondere die Breite der Hochbereiche bei gleichbleibender Breite der Tiefbereiche variiert. Hierdurch wird zumindest in Fahrtrichtung bevorzugt auch quer, insbesondere auch senkrecht hierzu, das Entstehen einer Periodizität und dadurch bedingte Geräuschemissionen verhindert.The FIG. 4 further visualizes that from module 1e to module 1e, that is, separated by the deepest grooves 1b ', each formed within a module structure, that is, the sequence of high and low regions, may be formed differently, in particular the width of the high areas at constant width of the low ranges varies. As a result, at least in the direction of travel preferably also transversely, in particular also perpendicular thereto, the emergence of a periodicity and consequent noise emissions is prevented.

Diese Erfindung entstand im Rahmen des von der Bundesanstalt für Straßenwesen geförderten Projektes "Entwicklung einer leisen Straßendeckschicht auf Kunststoffbasis", Förderkennziffer Z5t-FE88.0108/2011".This invention was developed within the framework of the project "Development of a quiet road surface layer based on plastics", funded by the Federal Highway Research Institute, grant code Z5t-FE88.0108 / 2011 ".

Claims (6)

  1. Surfacing of a traffic route, in particular which is applied to a bearing layer (3) of a traffic route and which has a layer structure made up of at least two layers (1, 2) arranged above one another, wherein the layer structure has an uppermost layer (1) which forms a roadway surfacing which is contacted by vehicles and which has a structure which forms high regions (1a) and low regions (1b, 1b') and which has at least one open-pore layer (2) arranged below the uppermost layer (1), in particular which open-pore layer is formed from granules which are bonded so as to be open-pored, wherein the uppermost layer (1) forming the roadway surfacing has, in the low regions (1b, 1b') of the structure, through-openings (1c) which in each case extend, in particular vertically, through the uppermost layer (1) to the at least one open-pore layer (2), wherein the low regions (1b, 1b') are formed by the bottom regions of upwardly open channels/grooves (1b, 1b') which extend in the uppermost layer (1), in particular which channels/grooves intersect and at least some of the channels/grooves (1b, 1b') are oriented perpendicular to the direction of extent/direction of travel of the uppermost layer (1), in particular extend over the entire width of the layer (1), characterized in that at least some (1b') of the channels/grooves (1b, 1b') oriented perpendicularly to the direction of extent/direction of travel of the uppermost layer, in particular each n-th one, where n > 1, has a greater depth than the remainder of the channels/grooves (1b) in such a way that, before being connected to the open-pore layer (2), the uppermost layer (1) can be at least partially angled off in these lower channels/grooves (1b') and can thus be wound up in carriageway sections and/or can be unwound from a reel.
  2. Surfacing according to Claim 1, characterized in that the high regions (1a) of the structure each have a planar plateau (P), in particular wherein the plateaus (P) of all high regions (1a) lie in the same plane.
  3. Surfacing according to one of the preceding claims, characterized in that at least one through-opening (1c) is arranged at least in a respective intersection region of two channels/grooves (1b, 1b').
  4. Surfacing according to one of the preceding claims, characterized in that the structure periodicity of high and low regions (1a, 1b, 1b') and/or the number of through-openings (1c) per unit area of the uppermost layer (1) is locally different or the surfacing does not have any periodicity of the structure at least in the direction of travel.
  5. Surfacing according to one of the preceding claims, characterized in that a reinforcing, in particular textile element (4), in particular a woven fabric/knit (4), is embedded in the uppermost layer (1), in particular in a region between the lower surface of the uppermost layer (1) and the lowermost points (1b') of the low regions (1b, 1b').
  6. Method for producing a surfacing for traffic routes according to one of the preceding claims, characterized in that at least one open-pore layer (2) is unwound from a prefabricated reel on a prepared bearing layer (3) of the traffic route and is connected to the bearing layer (3) of the traffic route or another open-pore layer, and the uppermost layer (1) forming the roadway surfacing having a structure which forms high regions (1a) and low regions (1b, 1b') and in the low regions (1b, 1b') of which through-openings (1c) are arranged is unwound from a prefabricated reel on this at least one open-pore layer (2) and is connected, in particular cohesively connected, in an air-permeable manner to the open-pore layer (2) at least in the through-openings (1c).
EP14001456.4A 2013-05-16 2014-04-23 Covering of a traffic route and method for producing the same Active EP2811073B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013008362.1A DE102013008362A1 (en) 2013-05-16 2013-05-16 Pavement of a traffic route and method for its production

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EP2811073A1 EP2811073A1 (en) 2014-12-10
EP2811073B1 true EP2811073B1 (en) 2018-02-28

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DE (1) DE102013008362A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH569151A5 (en) * 1972-10-02 1975-11-14 Welty Lloyd G High friction self-draining structure - having solid base layer and resin bonded particulate upper layer
BE826417A (en) * 1975-03-07 1975-06-30 PROCESS FOR MAKING PAVEMENTS, SLABS AND PAVEMENTS OBTAINED
DE9116773U1 (en) * 1990-07-16 1993-11-18 Werner Zapf Kg, 95448 Bayreuth Permeable surface fastener and its application
DE29518977U1 (en) * 1995-11-30 1996-02-01 Eickenroth, Hans-Dieter, 72108 Rottenburg Drainage covering containing plastic particles
US6206607B1 (en) * 1997-02-10 2001-03-27 John, J. Medico, Jr. Christine Meoli Medico Family Trust Environmental porous pavement construction, and method for manufacturing pavement construction
AT2847U1 (en) * 1997-10-17 1999-05-25 Fleischhacker Gerhard ROAD Paving
DE202004006741U1 (en) * 2004-04-27 2005-12-08 Scherer, Josef Method for constructing roadway with a fibre mesh mat secured between upper and base layers using attached anchoring elements
DE102010002061A1 (en) * 2010-02-17 2011-08-18 Rainer Dr. 56170 Hart Ceiling for lanes with a water-permeable road surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102013008362A1 (en) 2014-11-20

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