EP0358209A2 - Tennis court surfacing - Google Patents
Tennis court surfacing Download PDFInfo
- Publication number
- EP0358209A2 EP0358209A2 EP89116490A EP89116490A EP0358209A2 EP 0358209 A2 EP0358209 A2 EP 0358209A2 EP 89116490 A EP89116490 A EP 89116490A EP 89116490 A EP89116490 A EP 89116490A EP 0358209 A2 EP0358209 A2 EP 0358209A2
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- EP
- European Patent Office
- Prior art keywords
- layer
- binder
- sand
- brick
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011230 binding agent Substances 0.000 claims abstract description 40
- 239000011449 brick Substances 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 239000005060 rubber Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims description 25
- 235000013339 cereals Nutrition 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 235000013312 flour Nutrition 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920000193 polymethacrylate Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 239000004927 clay Substances 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 210000002346 musculoskeletal system Anatomy 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
Definitions
- the invention relates to a tennis court covering according to the preamble of claim 1.
- the classic tennis court which consists of broken brick, is still considered by most tennis players because of its elastic properties and its non-slip properties for the player.
- it has the disadvantage that it requires very intensive care and has to be prepared practically every year. This is extremely costly, especially with today's masses of players, so that new solutions were sought which, on the one hand, have the properties of the brick flour tennis court, but on the other hand require as little maintenance as possible.
- a sports field in which an elastic plastic layer is applied to a solid surface and solidified by means of an adhesive. After peeling off this elastic layer, a color layer (red or green) is then applied in order to optically improve the black rubber particles of the elastic layer, which are usually colored with carbon black.
- a color layer red or green
- a tennis court produced in this way is easy to maintain, but has the disadvantages that it is not slip-friendly, ie it becomes smooth after some time and also has an irregular and too elastic ball bounce behavior.
- the latter behavior is partly due to bumps in the elastic surface, but also partly due to the elastic particles that act directly on the ball.
- DE-AS 22 58 566 relates to a floor covering for tennis courts, the lower layer of which consists of an elastic polymeric material (expanded polystyrene), on which an upper open-pore plate layer of a hard mineral (granular fired clay) is applied, which is solidified by a weather-resistant binder and is bound to the lower layer.
- Soft fired clay powder is sprinkled on this clay layer, the interface area between the hard and soft clay powder should be connected to the soft clay powder via the binder that is present in the hard clay powder.
- the tennis court covering described here does not meet the desired requirements that are gentle on the musculoskeletal system of the player, since the hard mineral layer is too thick and therefore too inelastic.
- the invention is therefore based on the object of providing a tennis court surface which, on the one hand, is easy to maintain and, on the other hand, has practically the same ball bouncing behavior as in a conventional brick meal tennis court.
- a tennis court covering which has practically the same positive properties as the conventional broken brick flour tennis court, however practically no longer has to be maintained.
- a tennis court that has been produced according to the method according to the invention only has to be sprinkled in now and then with loose broken brick. Otherwise, it does not need any further care for years. It absorbs all precipitation and, due to its permeability, transfers it to an artificial or natural drainage system provided in the ground, ie it is independent of wind and weather. Even the marking lines can be permanently applied to the sports field surface with plastic paint so that the boundary lines do not have to be renewed over the years.
- the covering according to the invention is expediently applied to a solid base layer, which can be of natural or artificial origin.
- An asphalt or concrete layer which is expediently water-permeable, is advantageously used as the base layer.
- This solid surface is of course the size of a playing field.
- a granulate made from a first elastic polymeric material is first applied to this solid base, which has previously been mixed with a binder in the not yet cured state.
- Suitable polymeric materials are rubber-elastic polymeric materials, which include polyolefins, polyurethanes, possibly in a foamed state, and rubber (vulcanized rubber). Of this material, rubber is preferred which has been comminuted in the usual way (grinding and the like). Such rubber materials include not only natural rubbers, but also the artificial rubber components.
- recycled rubber products which are produced, for example, by processing rubber waste materials from car tires and the like. or obtained from waste products.
- the particle size of the irregularly shaped particles of the first layer can be up to about 4 mm, with about 80% by weight of the particles having a grain size of about 2-4 mm.
- the thickness of the first layer consisting of the rubber-like particles and the binder, is on average about 0.7-1.5, in particular about 1 cm.
- a polyurethane-based binder which can be used to solidify this layer, so that reference is also made to this.
- other binders can also be used, for example based on epoxy, polyacrylate or polymethacrylate. If rubber particles are used, the usual vulcanizing agents can also be used.
- a polyurethane-based adhesive is preferably used, as described, for example, in DE-A 21 56 255.
- These adhesives are mixed with the particles of the first layer in the pourable state, for example in a weight amount of 1: 4 - 1: 6, in particular about 1: 5 binder / particles.
- the latter particles are usually applied in an amount of about 7 kg / m2 of sports field area.
- binder in an amount of 1.4 kg / m2.
- the mass is spread out and leveled using customary methods.
- a second layer as explained below, can then be applied.
- a layer of relatively hard mineral material in particular quartz sand or clinker powder, is applied as the first leveling layer, which layer is solidified with a further binder.
- This second binder is the same or different from the first binder, advantageously the same.
- the use of polyurethane is also particularly preferred here.
- about 1-3 advantageously about 2 kg of sand per m2 of covering are applied to the elastic first covering.
- the grain size of the sand is up to 2 mm, preferably about 80-90% by weight of the sand having a grain size of about 1-2 mm.
- the grain shape should preferably be angular, so that the next finer layer gets better hold.
- the sand is mixed with the liquid, subsequently curing binder, preferably polyurethane, before application, the weight mixing ratio of sand / binder being about 30: 1 to 3: 1, in particular about 10: 1.
- polyurethane in an amount of about 0.1-0.5, in particular about 0.3 kg / m2 of sand surface.
- This sand / binder mixture is also spread out in the usual way as a layer which is then leveled out.
- the sand fills the surface unevenness, which is due to the different size and irregular shape of the rubber-like particles.
- the sand layer After hardening, the sand layer has a thickness of about 1-1.5 mm on average over the elastic layer and is essentially completely flat. "On average” means that somewhat larger layer thicknesses can occur due to the unevenness of the elastic layer to be filled.
- the thickness ratio between the elastic layer (first layer) and the hard mineral layer (second layer) is advantageously in a range from approximately 4: 1 to 10: 1.
- a sand covering produced in this way is not yet suitable for use as it does not slip due to its abrasive properties and also presents an increased risk of injury to the players.
- a third layer is applied as a second leveling layer, which consists of broken brick flour, to which a further binder has been added.
- This binder is advantageously identical to the two binders used above.
- the broken brick flour has a grain size of up to 1 mm, advantageously about 80% having a grain size of about 0.5-1 mm.
- the broken brick flour is advantageously used with liquid polyurethane in the same amounts as for the sand layer, i.e. about 0.3 kg PUR / m2 sports field area is used according to the preferred embodiment.
- this layer adheres to the spaces between the individual grains of sand and is therefore difficult to rub off.
- the adhesion of the broken brick particles which are softer in relation to the sand, is not so strong that this covering would behave like an emery.
- a surface produced in this way has practically the same playing characteristics as a conventional tennis court based on broken brick, i.e. it is suitable for tournament games and is also extremely easy to maintain.
- the boundary lines are applied to the bound brick flour layer with the aid of firmly adhering white paint, for example based on PUR, which can practically not be removed during play.
- a liquid binder such as water and the like, being added to reduce the generation of dust.
- a covering produced in this way is water-permeable due to the low binder content in the respective layers and the selected relatively large grain sizes of the individual particles and absorbs the rain water quantities in the shortest possible time - provided that there is a functioning drainage system.
- the above covering is manufactured in situ and remains connected to the base covering.
- the sports field covering can be factory-made in the form of plates and the like. are produced by the same method, which are then applied to the base covering, the preformed plate being applied to the base surface with the aid of the binder used above.
- the binder used can be the same or different from the binder used to produce the individual plate layers.
- the binder can be spread over the entire base surface or the like in the form of strips. be applied to the base surface. It should only be noted that the water permeability between the base surface and the underside of the plate is not impaired by the binder layer. Such a procedure is advantageously used when the plates are to be permanently connected to the substrate.
- this plate is fastened to the subsurface using known connection systems which allow the plates to be removed again, for example double-sided adhesive tapes and the like.
- connection systems which allow the plates to be removed again, for example double-sided adhesive tapes and the like.
- only the respective plate is fixed in the edge area on the substrate, which is sufficient for fixing the relatively rigid plate on the substrate.
- Such plates can be produced in the usual way in a form in which the individual layers are inserted one after the other and are each cured in the usual way.
- the latter procedure is explained, for example, in DE-A-21 56 255, to the disclosure of which reference is made.
- the only drawing shows a surface for sports fields in perspective, with the front cut.
- the first polymeric layer 12 made of rubber particles 14 is applied, which are solidified with one another with binder in situ.
- the second layer 16 of sand particles 18 is applied, which in turn is solidified with binders.
- the third layer 20 is applied, which contains brick powder particles 22, which are solidified again with binder.
- loose brick powder 24 is sprinkled on, which may be kept slippery by a further, non-hardening binder, but is essentially kept dust-free.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
Description
Die Erfindung betrifft einen Tennisplatzbelag gemäß dem Oberbegriff des Anspruches 1.The invention relates to a tennis court covering according to the preamble of claim 1.
Der klassische Tennisplatz, der aus Ziegelbruchmehl besteht, wird heute immer noch von den meisten Tennisspielern wegen seiner elastischen Eigenschaften und seiner Rutschfreundlichkeit für den Spieler als ideal angesehen. Er weist jedoch den Nachteil auf, daß er einer sehr intensiven Pflege bedarf und praktisch jedes Jahr neu präpariert werden muß. Dies ist insbesondere bei der heutigen Masse der Spieler äußerst kostenaufwendig, so daß nach neuen Lösungen gesucht wurde, die einerseits die Eigenschaften des Ziegelmehltennisplatzes aufweisen, andererseits jedoch möglichst wenig Pflege bedürfen.The classic tennis court, which consists of broken brick, is still considered by most tennis players because of its elastic properties and its non-slip properties for the player. However, it has the disadvantage that it requires very intensive care and has to be prepared practically every year. This is extremely costly, especially with today's masses of players, so that new solutions were sought which, on the one hand, have the properties of the brick flour tennis court, but on the other hand require as little maintenance as possible.
So ist beispielsweise ein Sportplatz bekannt, bei dem auf einen festen Untergrund eine elastische Kunststoffschicht aufgetragen und mittels eines Klebers verfestigt wird. Nach dem Abziehen dieser elastischen Schicht wird anschließend eine Farbschicht (rot oder grün) aufgetragen, um die üblicherweise mit Ruß eingefärbten schwarzen Gummiteilchen der elastischen Schicht optisch zu verbessern.For example, a sports field is known in which an elastic plastic layer is applied to a solid surface and solidified by means of an adhesive. After peeling off this elastic layer, a color layer (red or green) is then applied in order to optically improve the black rubber particles of the elastic layer, which are usually colored with carbon black.
Ein so hergestellter Tennisplatz ist zwar pflegeleicht, weist jedoch die Nachteile auf, daß er nicht rutschfreundlich ist, d.h. nach einiger Zeit glatt wird und darüber hinaus ein unregelmäßiges und zu elastisches Ballaufsprungverhalten besitzt. Letzteres Verhalten ist zum Teil auf Unebenheiten in der elastischen Oberfläche, zum Teil aber auch auf die unmittelbar auf den Ball einwirkenden elastischen Teilchen zurückzuführen.A tennis court produced in this way is easy to maintain, but has the disadvantages that it is not slip-friendly, ie it becomes smooth after some time and also has an irregular and too elastic ball bounce behavior. The latter behavior is partly due to bumps in the elastic surface, but also partly due to the elastic particles that act directly on the ball.
Um das Rutschverhalten eines derartigen Tennisplatzes zu verbessern, wurde gemäß DE-A-28 26 206 vorgeschlagen, die nicht gleitende Oberfläche des Kautschukbelags mit gummielastischen Körnern zu versehen, wobei zwischen die Körner lose kleinere gummielastische Körner zur Auffüllung der Zwischenräume vorgesehen sind.In order to improve the slip behavior of such a tennis court, it has been proposed according to DE-A-28 26 206 to provide the non-sliding surface of the rubber covering with rubber-elastic grains, with smaller, smaller rubber-elastic grains being provided between the grains to fill up the spaces.
Ein solcher Platz ist zwar ebenfalls wartungsfreundlich, besitzt jedoch wiederum den Nachteil, daß die lose eingestreuten Teilchen schmirgelnd auf die fixierten Teilchen einwirken. Dies hat zur Folge, daß ein solcher Belag nach einiger Zeit glatt wird und erneut abgezogen werden muß.Such a place is also easy to maintain, but again has the disadvantage that the loosely sprinkled particles have an abrasive effect on the fixed particles. As a result, such a covering becomes smooth after some time and has to be removed again.
Ein weiterer Belag ist aus der DE-A 32 31 231 bekannt. Neben der bereits vorstehend erwähnten Wartungsfreundlichkeit weist ein solcher Platz eine relativ gute und lang andauernde Bespielbarkeit auf, wobei allerdings festzustellen ist, daß sich ein solcher Platz nicht für Tennisturniere eignet, da er im Verhaltnis zum konventionellen Ziegelmehlplatz ein ungünstiges Ballabsprungverhalten aufweist. Dieses Ballabsprungverhalten ist im wesentlichen darauf zurückzuführen, daß die Unebenheiten in der Gummikörperschicht nicht im ausreichenden Maß durch die Ziegelbruchmehlschicht ausgeglichen werden können, d. h. die Dicke der Ziegelmehlschicht ist relativ uneinheitlich. Insofern kommt es zu einem mehr oder weniger starken unmittelbaren Kontakt des Tennisballs mit den Gummikörpern, die aufgrund ihrer elastischen Eigenschaften ein anderes Absprungverhalten des Tennisballs erzeugen als die herkömmliche Ziegelbruchmehlschicht.Another covering is known from DE-A 32 31 231. In addition to the ease of maintenance already mentioned, such a court has a relatively good and long-lasting playability, although it should be noted that such a court is not suitable for tennis tournaments, since it has an unfavorable ball bounce behavior in relation to the conventional brick meal court. This ball bounce behavior is essentially due to the fact that the unevenness in the rubber body layer cannot be compensated to a sufficient degree by the layer of broken brick, ie the thickness of the layer of broken brick is relatively inconsistent. In this respect there is a more or less strong direct contact of the tennis ball with the rubber bodies, which is different due to their elastic properties Bounce behavior of the tennis ball produce than the conventional brick breakage layer.
Die DE-AS 22 58 566 betrifft einen Bodenbelag für Tennisplätze, dessen Unterschicht aus einem elastischen polymeren Material (expandiertem Polystyrol) besteht, auf dem eine obere offenporige Plattenschicht aus einem harten Mineralstoff (körnigem gebrannten Ton) aufgetragen ist, der durch ein witterungsbeständiges Bindemittel verfestigt und an die Unterschicht gebunden ist. Auf diese Tonschicht ist weiches gebranntes Tonmehl aufgestreut, wobei der Grenzflächenbereich zwischen dem harten und dem weichen Tonmehl über das Bindemittel, das im harten Tonmehl vorliegt, mit dem weichen Tonmehl verbunden sein soll.DE-AS 22 58 566 relates to a floor covering for tennis courts, the lower layer of which consists of an elastic polymeric material (expanded polystyrene), on which an upper open-pore plate layer of a hard mineral (granular fired clay) is applied, which is solidified by a weather-resistant binder and is bound to the lower layer. Soft fired clay powder is sprinkled on this clay layer, the interface area between the hard and soft clay powder should be connected to the soft clay powder via the binder that is present in the hard clay powder.
Der hierin beschriebene Tennisplatzbelag erfüllt jedoch nicht die gewünschten, den Bewegungsapparat des Spielers schonenden Voraussetzungen, da die harte Mineralschicht zu dick und damit in sich zu unelastisch ist.However, the tennis court covering described here does not meet the desired requirements that are gentle on the musculoskeletal system of the player, since the hard mineral layer is too thick and therefore too inelastic.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Tennisplatzbelag zur Verfügung zu stellen, der einerseits wartungsfreundlich ist und bei dem andererseits praktisch das gleiche Ballabsprungverhalten vorliegt wie bei einem herkömmlichen Ziegelmehltennisplatz.The invention is therefore based on the object of providing a tennis court surface which, on the one hand, is easy to maintain and, on the other hand, has practically the same ball bouncing behavior as in a conventional brick meal tennis court.
Die Lösung der Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1.The problem is solved by the characterizing features of claim 1.
Erfindungsgemäß wird ein Tennisplatzbelag zur Verfügung gestellt, der praktisch die gleichen positiven Eigenschaften wie der konventionelle Ziegelbruchmehl-Tennisplatz aufweist, jedoch praktisch nicht mehr gewartet werden muß. So muß ein Tennisplatz, der gemäß dem erfindungsgemäßen Verfahren hergestellt worden ist, lediglich noch mit losem Ziegelbruchmehl hin und wieder eingestreut werden. Ansonsten bedarf er über Jahre hinaus keiner weiteren Pflege mehr. Er nimmt dabei sämtliche Niederschläge auf und gibt sie infolge seiner Durchlässigkeit an ein im Boden vorgesehenes künstliches oder natürliches Drainagesystem ab, d.h. er ist gegen Wind und Wetter unabhängig. Selbst die Markierungslinien können mit Kunststoffarbe auf den Sportplatzbelag dauerhaft aufgetragen werden, so daß auch die Begrenzungslinien über Jahre hinweg nicht erneuert werden müssen.According to the invention, a tennis court covering is provided which has practically the same positive properties as the conventional broken brick flour tennis court, however practically no longer has to be maintained. A tennis court that has been produced according to the method according to the invention only has to be sprinkled in now and then with loose broken brick. Otherwise, it does not need any further care for years. It absorbs all precipitation and, due to its permeability, transfers it to an artificial or natural drainage system provided in the ground, ie it is independent of wind and weather. Even the marking lines can be permanently applied to the sports field surface with plastic paint so that the boundary lines do not have to be renewed over the years.
Der erfindungsgemäße Belag wird zweckmäßigerweise auf eine feste Basisschicht aufgetragen, die natürlichen oder künstlichen Ursprungs sein kann. Vorteilhafterweise wird als Basisschicht eine Asphalt- oder Betonschicht eingesetzt, die zweckmäßigerweise wasserdurchlässig ausgebildet ist. Dieser feste Untergrund besitzt natürlich die Größe eines Spielfeldes.The covering according to the invention is expediently applied to a solid base layer, which can be of natural or artificial origin. An asphalt or concrete layer, which is expediently water-permeable, is advantageously used as the base layer. This solid surface is of course the size of a playing field.
Auf diesem festen Untergrund wird erfindungsgemäß zunächst ein Granulat aus einem ersten elastischen polymeren Material aufgetragen, das zuvor mit einem Bindemittel im noch nicht ausgehärteten Zustand vermischt worden ist. Als polymeres Material eignen sich gummieleastische polymere Materialien, zu denen Polyolefine, Polyurethane, ggf. in geschäumtem Zustand und Gummi (vulkanisierter Kautschuk) gehören. Von diesem Material ist Gummi bevorzugt, der auf übliche Weise (zermahlen udgl.) zerkleinert worden ist. Dabei fallen unter derartige Gummimaterialien nicht nur Naturkautschuke, sondern auch die künstlichen Kautschukkomponenten.According to the invention, a granulate made from a first elastic polymeric material is first applied to this solid base, which has previously been mixed with a binder in the not yet cured state. Suitable polymeric materials are rubber-elastic polymeric materials, which include polyolefins, polyurethanes, possibly in a foamed state, and rubber (vulcanized rubber). Of this material, rubber is preferred which has been comminuted in the usual way (grinding and the like). Such rubber materials include not only natural rubbers, but also the artificial rubber components.
Besonders vorteilhaft ist der Einsatz von Recycling-Gummiprodukten, die beispielsweise durch Aufarbeitung von Gummialtmaterialien aus Autoreifen u.dgl. bzw. aus Abfallprodukten erhalten werden.It is particularly advantageous to use recycled rubber products, which are produced, for example, by processing rubber waste materials from car tires and the like. or obtained from waste products.
Die Partikelgröße der unregelmäßig gestalteten Teilchen der ersten Schicht kann bis zu etwa 4 mm betragen, wobei etwa 80 Gew.-% der Teilchen eine Korngröße von etwa 2-4 mm aufweisen.The particle size of the irregularly shaped particles of the first layer can be up to about 4 mm, with about 80% by weight of the particles having a grain size of about 2-4 mm.
Die Dicke der ersten Schicht, bestehend aus den gummiartigen Teilchen und dem Bindemittel beträgt im Mittel etwa 0,7 - 1,5, insbesondere etwa 1 cm.The thickness of the first layer, consisting of the rubber-like particles and the binder, is on average about 0.7-1.5, in particular about 1 cm.
Die Materialien für diese erste Schicht sind im übrigen aus der DE-A-21 56 255 bekannt, auf die aus Offenbarungszwecken Bezug genommen wird.The materials for this first layer are known from DE-A-21 56 255, to which reference is made for the purposes of disclosure.
Aus letzterer Offenlegungsschrift ist im übrigen auch ein Bindemittel auf Polyurethanbasis bekannt, das zur Verfestigung dieser Schicht eingesetzt werden kann, so daß hierauf ebenfalls Bezug genommen wird. Es sind jedoch aber auch andere Bindemittel einsetzbar, beispielsweise auf Epoxid-, Polyacrylat- oder Polymethacrylatbasis einsetzbar. Bei einem Einsatz von Gummiteilchen können auch die üblichen Vulkanisationsmittel eingesetzt werden. Des weiteren können polymere Stoffe, die thermisch erweichen und verschweißbar sind, aufgrund ihrer thermoplastischen Eigenschaften ohne weiteren Bindemittelzusatz mit Wärme behandelt und dadurch miteinander verbunden werden. Bevorzugt wird jedoch ein Kleber auf Polyurethanbasis eingesetzt, wie er beispielsweise in der DE-A 21 56 255 beschrieben ist.From the latter publication, a polyurethane-based binder is also known which can be used to solidify this layer, so that reference is also made to this. However, other binders can also be used, for example based on epoxy, polyacrylate or polymethacrylate. If rubber particles are used, the usual vulcanizing agents can also be used. Furthermore, due to their thermoplastic properties, polymeric materials that soften thermally and can be welded can be treated with heat without the addition of any additional binders and thereby bonded to one another. However, a polyurethane-based adhesive is preferably used, as described, for example, in DE-A 21 56 255.
Diese Klebstoffe werden im gießfähigen Zustand mit den Teilchen der ersten Schicht versetzt, beispielsweise in einer Gewichtsmenge von 1:4 - 1:6, insbesondere etwa 1:5 Bindemittel/Teilchen. Die letztgenannten Teilchen werden üblicherweise dabei eine Menge von etwa 7 kg/m² Sportplatzfläche aufgetragen.These adhesives are mixed with the particles of the first layer in the pourable state, for example in a weight amount of 1: 4 - 1: 6, in particular about 1: 5 binder / particles. The latter particles are usually applied in an amount of about 7 kg / m² of sports field area.
Besonders vorteilhaft setzt man das Bindemittel in einer Menge von 1,4 kg/m² ein.It is particularly advantageous to use the binder in an amount of 1.4 kg / m².
Nach dem Auftrag wird die Masse ausgebreitet und mit üblichen Methoden egalisiert. Nach dem Aushärten des Bindemittels kann dann eine zweite Schicht, wie sie nachstehend erläutert wird, aufgetragen werden.After the application, the mass is spread out and leveled using customary methods. After the binder has hardened, a second layer, as explained below, can then be applied.
Aufgrund der mittleren Korngröße und der unregelmäßigen Formung der Teilchen sowie der geringen Bindemittelmenge ist sichergestellt, daß ausreichende Hohl- oder Zwischenräume zwischen den einzelnen Teilchen bleiben, die beispielsweise 20-70 Vol-% des eingesetzten Materials ausmachen können. Aufgrund dieses Leervolumens kann Regenwasser zwischen den Teilchen abfließen und durch ein darunter befindliches Drainagesystem aus dem Sportplatzbereich abgeleitet werden.Due to the average grain size and the irregular shape of the particles and the small amount of binder, it is ensured that sufficient voids or gaps remain between the individual particles, which can make up, for example, 20-70% by volume of the material used. Because of this empty volume, rainwater can flow between the particles and be drained from the sports field area through a drainage system underneath.
Desgleichen wird durch das Abfließen eine Bildung von Druckpunkten vermieden.Likewise, the formation of pressure points is avoided by the outflow.
Aufgrund der elastischen Eigenschaften, die im wesentlichen durch diese Schicht dem Belag verliehen werden, wird der Bewegungsapparat der Spieler, insbesondere die Gelenke, geschont.Due to the elastic properties that are essentially imparted to the covering by this layer, the musculoskeletal system of the players, in particular the joints, is protected.
Nach dem Aushärten dieser elastischen ersten Schicht wird als erste Egalisierungsschicht eine Schicht aus relativ hartem Mineralmaterial (Sand), insbesondere Quarzsand oder Klinkerbruchmehl, aufgetragen, die mit einem weiteren Bindemittel verfestigt wird. Dieses zweite Bindemittel ist gleich oder unterschiedlich vom ersten Bindemittel, vorteilhafterweise gleich. Besonders bevorzugt ist auch hier der Einsatz von Polyurethan.After this elastic first layer has hardened, a layer of relatively hard mineral material (sand), in particular quartz sand or clinker powder, is applied as the first leveling layer, which layer is solidified with a further binder. This second binder is the same or different from the first binder, advantageously the same. The use of polyurethane is also particularly preferred here.
Erfindungsgemäß werden etwa 1-3, vorteilhafterweise etwa 2 kg Sand je m² Belag auf den elastischen ersten Belag aufgetragen. Die Korngröße des Sands beträgt bis zu 2 mm, wobei vorzugsweise etwa 80 - 90 Gew.-% des Sands eine Korngröße von etwa 1-2 mm aufweisen. Die Kornform sollte vorzugsweise eckig sein, damit die nächst feinere Schicht besseren Halt bekommt.According to the invention, about 1-3, advantageously about 2 kg of sand per m² of covering are applied to the elastic first covering. The grain size of the sand is up to 2 mm, preferably about 80-90% by weight of the sand having a grain size of about 1-2 mm. The grain shape should preferably be angular, so that the next finer layer gets better hold.
Der Sand wird vor dem Auftragen mit den flüssigen, anschließend aushärtenden Bindemittel, vorzugsweise Polyurethan vermischt, wobei das gewichtsmäßige Mischungsverhältnis von Sand/Bindemittel etwa 30:1 bis 3:1, insbesondere etwa 10:1 beträgt.The sand is mixed with the liquid, subsequently curing binder, preferably polyurethane, before application, the weight mixing ratio of sand / binder being about 30: 1 to 3: 1, in particular about 10: 1.
Besonders vorteilhaft setzt man Polyurethan in einer Menge von etwa 0,1-0,5, insbesondere etwa 0,3 kg/m² Sandfläche ein.It is particularly advantageous to use polyurethane in an amount of about 0.1-0.5, in particular about 0.3 kg / m² of sand surface.
Dieses Sand/Bindemittelgemisch wird ebenfalls auf übliche Weise als Schicht ausgebreitet, die anschließend egalisisert wird. Dabei füllt der Sand die Oberflächenunebenheiten, die auf die unterschiedliche Größe und die irreguläre Form der gummiartigen Teilchen zurückzuführen ist, aus.This sand / binder mixture is also spread out in the usual way as a layer which is then leveled out. The sand fills the surface unevenness, which is due to the different size and irregular shape of the rubber-like particles.
Nach dem Aushärten weist die Sandschicht eine Dicke von etwa 1-1,5 mm im Mittel über der elastischen Schicht auf und ist im wesentlichen vollständig eben. "Im Mittel" bedeutet, daß durchaus etwas größere Schichtdicken, bedingt durch die aufzufüllenden Unebenheiten der elastischen Schicht, auftreten können. Das Dickenverhältnis zwischen der elastischen Schicht (erste Schicht) und der harten Mineralschicht (zweite Schicht) liegt vorteilhaft in einem Bereich von etwa 4:1 bis 10:1.After hardening, the sand layer has a thickness of about 1-1.5 mm on average over the elastic layer and is essentially completely flat. "On average" means that somewhat larger layer thicknesses can occur due to the unevenness of the elastic layer to be filled. The thickness ratio between the elastic layer (first layer) and the hard mineral layer (second layer) is advantageously in a range from approximately 4: 1 to 10: 1.
Aufgrund der Egalisierung der Oberfläche einerseits und der relativ unelastischen, harten Eigenschaften des Sands andererseits wird ein hervorragendes Ballaufsprungverhalten sichergestellt, d.h. der Ball springt nicht infolge von Oberflächenunebenheiten irregulär zur Seite und springt auch nicht so stark ab, wie es bei einem Auftreffen auf die gummielastischen Körner unmittelbar der Fall wäre. Infolgedessen übt also die harte Sandschicht einen gewissen Dämpfungseffekt auf den aufspringenden Ball aus, was im wesentlichen bereits dem Aufsprungverhalten beim Sandplatz gleichkommt.Due to the leveling of the surface on the one hand and the relatively inelastic, hard properties of the sand on the other hand, excellent ball bounce behavior is ensured, i.e. the ball does not jump irregularly to the side as a result of surface unevenness and does not jump as strongly as would be the case if it hit the rubber-elastic grains directly. As a result, the hard layer of sand exerts a certain damping effect on the ball that bounces, which essentially equates to the bouncing behavior at the clay court.
Ein so hergestellter Sandbelag eignet sich jedoch noch nicht zum Bespielen, da er infolge seiner schmirgelnden Eigenschaften keine Rutschfähigkeit aufweist und darüber hinaus eine erhöhte Verletzungsgefahr für die Spieler darstellt.However, a sand covering produced in this way is not yet suitable for use as it does not slip due to its abrasive properties and also presents an increased risk of injury to the players.
Zur Beseitigung der letztgenannten Nachteile und zur weiteren Verbesserung des Ballabsprungverhaltens und der Rutschfähigkeit des Belages wird eine dritte Schicht als zweite Egalisierungsschicht aufgetragen, die aus Ziegelbruchmehl besteht, dem ein weiteres Bindemittel zugesetzt worden ist. Dieses Bindemittel ist vorteilhafterweise identisch mit den beiden vorstehend eingesetzten Bindemitteln.In order to eliminate the latter disadvantages and to further improve the ball bounce behavior and the slip ability of the covering, a third layer is applied as a second leveling layer, which consists of broken brick flour, to which a further binder has been added. This binder is advantageously identical to the two binders used above.
Das Ziegelbruchmehl weist eine Körnung bis zu 1 mm auf, wobei vorteilhafterweise etwa 80 % eine Körnung von etwa 0,5 - 1 mm aufweisen.The broken brick flour has a grain size of up to 1 mm, advantageously about 80% having a grain size of about 0.5-1 mm.
Erfindungsgemäß werden etwa 1-3, vorzugsweise 2 kg Ziegelbruchmehl/m² Sportplatzfläche aufgetragen. Zuvor wird das Ziegelbruchmehl vorteilhafterweise mit flüssigem Polyurethan in den gleichen Mengen wie bei der Sandschicht eingesetzt, d.h. es kommt etwa 0,3 kg PUR/m² Sportplatzfläche gemäß der bevorzugten Ausführungsform zum Einsatz.According to the invention, about 1-3, preferably 2 kg of broken brick flour / m² of sports field area are applied. Before that, the broken brick flour is advantageously used with liquid polyurethane in the same amounts as for the sand layer, i.e. about 0.3 kg PUR / m² sports field area is used according to the preferred embodiment.
Nach dem Egalisieren und Trocknen haftet diese Schicht in den Zwischenräumen zwischen den einzelnen Sandkörnern und kann infolgedessen nur schwer abgerieben werden. Andererseits ist jedoch die Haftung der im Verhältnis zum Sand weicheren Ziegelbruchpartikel durch die relativ geringe eingesetzte Menge Bindemittel nicht so stark, daß sich dieser Belag schmirgelartig verhalten würde.After leveling and drying, this layer adheres to the spaces between the individual grains of sand and is therefore difficult to rub off. On the other hand, due to the relatively small amount of binding agent used, the adhesion of the broken brick particles, which are softer in relation to the sand, is not so strong that this covering would behave like an emery.
Ein so hergestellter Belag weist praktisch die gleichen Spieleigenschaften wie ein konventioneller Tennisplatz auf Ziegelbruchmehlbasis auf, d.h. er eignet sich für Turnierspiele und ist darüber hinaus äußerst wartungsfreundlich.A surface produced in this way has practically the same playing characteristics as a conventional tennis court based on broken brick, i.e. it is suitable for tournament games and is also extremely easy to maintain.
Wie bereits vorstehend erwähnt, werden auf die gebundene Ziegelmehlschicht die Begrenzungslinien mit Hilfe von fest haftender weißer Farbe, beispielsweise auf PUR-Basis, aufgetragen, die sich praktisch nicht beim Spielbetrieb entfernen läßt.As already mentioned above, the boundary lines are applied to the bound brick flour layer with the aid of firmly adhering white paint, for example based on PUR, which can practically not be removed during play.
Zur Verbesserung des Rutschverhaltens wird schließlich loses Ziegelmehl auf die gebundene Ziegelmehlschicht aufgetragen, wobei zur Verringerung der Staubentwicklung ein flüssiges Bindemittel, wie Wasser u.dgl., zugesetzt wird.In order to improve the slip behavior, loose brick powder is finally applied to the bonded brick powder layer, a liquid binder, such as water and the like, being added to reduce the generation of dust.
Ein derart hergestellter Belag ist aufgrund des geringen Bindemittelgehalts in den jeweiligen Schichten und der gewählten relativ großen Korngrößen der einzelnen Partikel wasserdurchlässig und nimmt in kürzester Zeit - sofern ein funktionierendes Drainagesystem vorliegt - die Regenwassermengen auf.A covering produced in this way is water-permeable due to the low binder content in the respective layers and the selected relatively large grain sizes of the individual particles and absorbs the rain water quantities in the shortest possible time - provided that there is a functioning drainage system.
Der vorstehende Belag wird in situ hergestellt und bleibt darauf mit dem Basisbelag verbunden.The above covering is manufactured in situ and remains connected to the base covering.
In einer weiteren Ausführungsform kann jedoch der Sportplatzbelag werkseitig in Form von Platten u.dgl. nach dem gleichen Verfahren hergestellt werden, die anschließend auf den Basisbelag aufgebracht werden, wobei die vorgeformte Platte mit Hilfe des vorstehend eingesetzten Bindemittels auf die Basisfläche aufgebacht wird. Das eingesetzte Bindemittel kann dabei gleich oder unterschiedlich zu dem Bindemittel sein, das zur Herstellung der einzelnen Plattenschichten eingesetzt worden ist. Desgleichen kann das Bindemittel über die gesamte Basisfläche ausgebreitet werden oder aber in Form von Streifen udgl. auf die Basisfläche aufgetragen werden. Zu beachten ist dabei lediglich, daß die Wasserdurchlässigkeit zwischen der Basisfläche und der Unterseite der Platte nicht durch die Bindemittelschicht beeinträchtigt wird. Eine solche Vorgehensweise wird vorteilhafterweise dann eingesetzt, wenn die Platten dauerhaft mit dem Untergrund verbunden werden sollen.In a further embodiment, however, the sports field covering can be factory-made in the form of plates and the like. are produced by the same method, which are then applied to the base covering, the preformed plate being applied to the base surface with the aid of the binder used above. The binder used can be the same or different from the binder used to produce the individual plate layers. Likewise, the binder can be spread over the entire base surface or the like in the form of strips. be applied to the base surface. It should only be noted that the water permeability between the base surface and the underside of the plate is not impaired by the binder layer. Such a procedure is advantageously used when the plates are to be permanently connected to the substrate.
Falls jedoch die Platten nur für ein Turnier ausgelegt werden sollen, erfolgt die Befestigung dieser Platte am Untergrund über bekannte Verbindungssysteme, die einen Abbau der Platten wieder erlauben, beispielsweise doppelseitig klebende Bänder u.dgl. Hier wird lediglich die jeweilige Platte im Kantenbereich auf dem Untergrund festgelegt, was für eine Fixierung der relativ starren Platte auf dem Untergrund ausreicht.If, however, the plates are to be designed only for a tournament, this plate is fastened to the subsurface using known connection systems which allow the plates to be removed again, for example double-sided adhesive tapes and the like. Here, only the respective plate is fixed in the edge area on the substrate, which is sufficient for fixing the relatively rigid plate on the substrate.
Solche Platten können auf übliche Weise in einer Form hergestellt werden, in der die einzelnen Schichten nacheinander eingetragen und jeweils auf die übliche Weise ausgehärtet werden. Letztere Verfahrensweise ist beispielsweise in der DE-A- 21 56 255 erläutert, auf deren Offenbarung Bezug genommen wird.Such plates can be produced in the usual way in a form in which the individual layers are inserted one after the other and are each cured in the usual way. The latter procedure is explained, for example, in DE-A-21 56 255, to the disclosure of which reference is made.
Die einzige Zeichnung zeigt einen Belag für Sportplätze in perspektivischer Form, wobei die Frontseite angeschnitten ist.The only drawing shows a surface for sports fields in perspective, with the front cut.
Auf der Basisschicht 10, die beispielsweise aus Beton oder Asphalt besteht, wird die erste polymere Schicht 12 aus Gummipartikeln 14 aufgetragen, die untereinander mit Bindemittel in situ verfestigt werden. Nach dem Aushärten wird die zweite Schicht 16 aus Sandpartikeln 18 aufgetragen, die wiederum mit Bindemitteln verfestigt werden. Danach wird die dritte Schicht 20 aufgebracht, die Ziegelmehlpartikel 22 enthält, die erneut mit Bindemittel verfestigt werden. Zum Abschluß wird zur Verbesserung des Rutschverhaltens loses Ziegelmehl 24 aufgestreut, das ggf. durch ein weiteres, nicht härtendes Bindemittel rutschfähig, jedoch im wesentlichen nicht staubend gehalten wird.On the
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE3830372 | 1988-09-07 | ||
DE3830372 | 1988-09-07 |
Publications (3)
Publication Number | Publication Date |
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EP0358209A2 true EP0358209A2 (en) | 1990-03-14 |
EP0358209A3 EP0358209A3 (en) | 1990-05-16 |
EP0358209B1 EP0358209B1 (en) | 1992-08-05 |
Family
ID=6362440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89116490A Expired - Lifetime EP0358209B1 (en) | 1988-09-07 | 1989-09-07 | Tennis court surfacing |
Country Status (3)
Country | Link |
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EP (1) | EP0358209B1 (en) |
DE (1) | DE58901980D1 (en) |
ES (1) | ES2034541T3 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2246077A (en) * | 1990-07-20 | 1992-01-22 | Frank Bowers | Recreational surface |
FR2807078A1 (en) | 2000-03-29 | 2001-10-05 | Envirosport | Artificial playing surface e.g. for tennis court has expanded polymer base layer, two layers of timber boards, and sand-filled resin surface |
AU755765B2 (en) * | 1998-04-14 | 2002-12-19 | Playsoft Pty Ltd | Surface support structure |
WO2005075741A1 (en) * | 2004-02-07 | 2005-08-18 | Terraelast Ag | Water-permeable paving and method for producing a paving |
WO2006056764A1 (en) * | 2004-11-25 | 2006-06-01 | Frank Bowers | Synthetic recreational surface |
EP1811086A1 (en) * | 2006-01-18 | 2007-07-25 | Hans-Joachim Schneider | Method for the production of a flexible, weather-proof, frost-resisting, all the year round usable surface for ways, playgrounds and sports areas. In particular for tennis courts in interiors and exteriors |
WO2010149973A3 (en) * | 2009-06-25 | 2011-06-30 | Eco Composite Recycling Ltd | Materials |
DE202011051932U1 (en) | 2011-11-10 | 2013-02-11 | Sportas Gmbh Sportanlagen-Sportbodenbau | Flooring for sports surfaces |
WO2013068527A1 (en) | 2011-11-10 | 2013-05-16 | Sportek Ohg | Ground covering for sports areas, and method for producing it |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11332893B2 (en) | 2019-12-13 | 2022-05-17 | C & M Surfaces, LLC | Method of resurfacing a sports court |
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DE2156255A1 (en) * | 1970-11-09 | 1972-05-18 | Minnesota Mining & Mfg | Resilient composite material suitable as a covering for sports facilities |
DE2258566A1 (en) * | 1972-11-30 | 1974-06-06 | Klaus Dipl-Ing Seppelfricke | Outdoor tennis court flooring - comprising a base of foam plastic and a surface of clay granules |
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EP0258871A2 (en) * | 1986-09-02 | 1988-03-09 | Polytan-Sportbelagsysteme GmbH | Rink |
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- 1989-09-07 DE DE8989116490T patent/DE58901980D1/en not_active Expired - Fee Related
- 1989-09-07 ES ES198989116490T patent/ES2034541T3/en not_active Expired - Lifetime
- 1989-09-07 EP EP89116490A patent/EP0358209B1/en not_active Expired - Lifetime
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DE2156255A1 (en) * | 1970-11-09 | 1972-05-18 | Minnesota Mining & Mfg | Resilient composite material suitable as a covering for sports facilities |
DE2258566A1 (en) * | 1972-11-30 | 1974-06-06 | Klaus Dipl-Ing Seppelfricke | Outdoor tennis court flooring - comprising a base of foam plastic and a surface of clay granules |
DE2826206A1 (en) * | 1978-06-15 | 1979-12-20 | Becker Kg Sport | COVERING FOR SPORTS FIELDS, IN PARTICULAR TENNIS COURTS |
DE3231231A1 (en) * | 1982-08-21 | 1984-03-01 | C. Voigt Söhne GmbH & Co, 4620 Castrop-Rauxel | Method of producing a surfacing for sports fields, in particular tennis courts, as well as a movable plate for laying on sports fields, in particular tennis courts |
EP0258871A2 (en) * | 1986-09-02 | 1988-03-09 | Polytan-Sportbelagsysteme GmbH | Rink |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2246077A (en) * | 1990-07-20 | 1992-01-22 | Frank Bowers | Recreational surface |
AU755765B2 (en) * | 1998-04-14 | 2002-12-19 | Playsoft Pty Ltd | Surface support structure |
FR2807078A1 (en) | 2000-03-29 | 2001-10-05 | Envirosport | Artificial playing surface e.g. for tennis court has expanded polymer base layer, two layers of timber boards, and sand-filled resin surface |
WO2005075741A1 (en) * | 2004-02-07 | 2005-08-18 | Terraelast Ag | Water-permeable paving and method for producing a paving |
GB2434991B (en) * | 2004-11-25 | 2009-12-16 | Frank Bowers | Synthetic recreational surface |
WO2006056764A1 (en) * | 2004-11-25 | 2006-06-01 | Frank Bowers | Synthetic recreational surface |
GB2434991A (en) * | 2004-11-25 | 2007-08-15 | Frank Bowers | Synthetic recreational surface |
EP1939356A3 (en) * | 2006-01-18 | 2010-05-19 | Hans-Joachim Schneider | Covering for paths, playing and sport areas and method for manufacturing such a covering |
EP1811086A1 (en) * | 2006-01-18 | 2007-07-25 | Hans-Joachim Schneider | Method for the production of a flexible, weather-proof, frost-resisting, all the year round usable surface for ways, playgrounds and sports areas. In particular for tennis courts in interiors and exteriors |
WO2010149973A3 (en) * | 2009-06-25 | 2011-06-30 | Eco Composite Recycling Ltd | Materials |
US9163364B2 (en) | 2009-06-25 | 2015-10-20 | Sudscape Technologies Limited | Materials |
AU2010264344B2 (en) * | 2009-06-25 | 2016-02-04 | Sudscape Technologies Limited | Materials |
DE202011051932U1 (en) | 2011-11-10 | 2013-02-11 | Sportas Gmbh Sportanlagen-Sportbodenbau | Flooring for sports surfaces |
WO2013068527A1 (en) | 2011-11-10 | 2013-05-16 | Sportek Ohg | Ground covering for sports areas, and method for producing it |
DE102011055235A1 (en) | 2011-11-10 | 2013-05-16 | SPORTAS GmbH | Flooring for sports surfaces, as well as methods of manufacture |
US9353488B2 (en) | 2011-11-10 | 2016-05-31 | Sportek Ohg | Ground covering for sports areas, and method for producing it |
Also Published As
Publication number | Publication date |
---|---|
EP0358209B1 (en) | 1992-08-05 |
DE58901980D1 (en) | 1992-09-10 |
ES2034541T3 (en) | 1993-04-01 |
EP0358209A3 (en) | 1990-05-16 |
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