EP0358209B1 - Revêtement pour court de tennis - Google Patents

Revêtement pour court de tennis Download PDF

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Publication number
EP0358209B1
EP0358209B1 EP89116490A EP89116490A EP0358209B1 EP 0358209 B1 EP0358209 B1 EP 0358209B1 EP 89116490 A EP89116490 A EP 89116490A EP 89116490 A EP89116490 A EP 89116490A EP 0358209 B1 EP0358209 B1 EP 0358209B1
Authority
EP
European Patent Office
Prior art keywords
layer
sand
surfacing
particles
grain size
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89116490A
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German (de)
English (en)
Other versions
EP0358209A3 (en
EP0358209A2 (fr
Inventor
Hanne Hofmann-Jeckel
Reinhold Comprix
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Individual
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Individual
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Publication of EP0358209A2 publication Critical patent/EP0358209A2/fr
Publication of EP0358209A3 publication Critical patent/EP0358209A3/de
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Publication of EP0358209B1 publication Critical patent/EP0358209B1/fr
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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 visually 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 in a range from 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Road Repair (AREA)

Claims (10)

1. Revêtement de court de tennis comportant une seule couche (12) formée d'un matériau polymère élastique (14), d'une seconde couche (16) rigidifiée par un liant, formée de sable dur (18) et constituant une première couche d'égalisation, ainsi qu'une couche (24) de poussière de brique dispersée sur le revêtement et non solidifée, caractérisé en ce que le rapport de l'épaisseur de la première couche (12) à l'épaisseur de la seconde couche (16) se situe dans une gamme de 4:1-10:1 et qu'une seconde couche d'égalisation formée de poussière de brique solidifiée par un liant est déposée sur la seconde couche.
2. Revêtement selon la revendication 1, caractérisé en ce que la taille des grains du sable (18) atteint jusqu'à 2 mm, et de préférence environ 80-90 % du sable possèdent une taille de grains d'environ 1-2 mm.
3. Revêtement selon la revendication 1 ou 2, caractérisé en ce que l'épaisseur de la couche de sable (16) est égale à environ 1-1,5 mm.
4. Revêtement selon la revendication 1-3, caractérisé en ce que la première couche (12) est constituée par un matériau polymérique, à savoir du caoutchouc, une polyoléfine ou un polyuréthane, éventuellement à l'état de mousse, sous la forme de particules à grains fins (14), de préférence des produits de recyclage à base de caoutchouc.
5. Revêtement selon la revendication 4, caractérisé en ce que les particules (14) de la première couche (12) possèdent une taille de grains atteignant jusqu'à environ 4 mm, de préférence 80 % en poids des particules possédant une taille de grains d'environ 2-4 mm, et que l'épaisseur de la première couche est égale à environ 0,7-1,5 et notamment est égale à environ 1 cm.
6. Revêtement selon l'une des revendications 1-5, caractérisé en ce que la poussière de brique (22) de la troisième couche (20) possède une taille de grains atteignant jusqu'à 1 mm et égale de préférence entre environ 0,5-1 mm (environ 80 % en poids de la poussière de brique).
7. Revêtement selon la revendication 1 ou 6, caractérisé en ce que la troisième couche (20) contient environ 1 à 3 et de préférence environ 2 kg de poussière de brique (22) par m².
8. Revêtement selon l'une des revendications 1 à 7, caractérisé en ce qu'on utilise, comme liants pour la première couche (12), la seconde couche (16) et/ou la troisième couche (20), des adhésifs polymériques durcissables, qui sèchent automatiquement, à base de polyuréthanes, de résines époxy, de résines polyacrylate ou de résines polyméthacrylate.
9. Revêtement selon l'une des revendications 1 à 8, caractérisé en ce qu'on prévoit le liant en une quantité d'environ 0,1-1,6 et notamment 1,4 kg par m² de la couche de caoutchouc et environ 0,3 kg par m² de la couche de sable et/ou de poussière de brique, et que le rapport pondéral sable/liant est compris entre environ 30:1 et 3:1 et égal de préférence à environ 10:1, le rapport pondéral liant/particules de la première couche (12) se situant dans une gamme 1:4-1:6 et étant égal notamment à environ 1:5.
10. Revêtement selon l'une des revendications 1-9, caractérisé en ce que des lignes de limitation formées d'une matière plastique colorée présentant une élasticité permanente et apte à sécher, sont déposées sur la couche liée de poussière de brique (20) et que de la poussière de brique en vrac (24) est déposée, en une quantité d'environ 1-2 kg/m², sur la troisième couche (20).
EP89116490A 1988-09-07 1989-09-07 Revêtement pour court de tennis Expired - Lifetime EP0358209B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3830372 1988-09-07
DE3830372 1988-09-07

Publications (3)

Publication Number Publication Date
EP0358209A2 EP0358209A2 (fr) 1990-03-14
EP0358209A3 EP0358209A3 (en) 1990-05-16
EP0358209B1 true EP0358209B1 (fr) 1992-08-05

Family

ID=6362440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116490A Expired - Lifetime EP0358209B1 (fr) 1988-09-07 1989-09-07 Revêtement pour court de tennis

Country Status (3)

Country Link
EP (1) EP0358209B1 (fr)
DE (1) DE58901980D1 (fr)
ES (1) ES2034541T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753322A (zh) * 2009-06-25 2012-10-24 萨德斯卡普有限公司 材料
US11332893B2 (en) 2019-12-13 2022-05-17 C & M Surfaces, LLC Method of resurfacing a sports court

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9015961D0 (en) * 1990-07-20 1990-09-05 Bowers Frank Recreational surface
AU755765B2 (en) * 1998-04-14 2002-12-19 Playsoft Pty Ltd Surface support structure
FR2807078B1 (fr) 2000-03-29 2002-10-18 Envirosport Revetement de sol sportif, notamment pour courts de tennis et autres jeux de balles
DE102004006165B4 (de) * 2004-02-07 2007-01-18 Terraelast Ag Wasserdurchlässiger Bodenbelag und Verfahren zur Herstellung eines Bodenbelags
GB0425903D0 (en) * 2004-11-25 2004-12-29 Bowers Frank Synthetic recreational surface
EP1939356B1 (fr) * 2006-01-18 2014-11-19 Sportek OHG Revêtement pour aires de passage, de jeu et de sport, et procédé de fabrication d'un tel revêtement
DE202011051932U1 (de) 2011-11-10 2013-02-11 Sportas Gmbh Sportanlagen-Sportbodenbau Bodenbelag für Sportflächen
DE102011055235A1 (de) 2011-11-10 2013-05-16 SPORTAS GmbH Bodenbelag für Sportflächen, sowie Verfahren zur Herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR194718A1 (es) * 1970-11-09 1973-08-14 Minnesota Mining & Mfg Un material de revestimiento que comprende particulas de caucho vulcanizado aglomeradas
DE2258566A1 (de) * 1972-11-30 1974-06-06 Klaus Dipl-Ing Seppelfricke Bodenbelag fuer tennisplaetze und dergleichen sportanlagen
DE2826206C2 (de) * 1978-06-15 1984-01-12 Gebr. Becker GmbH & Co KG, 6204 Taunusstein Kunststoffbelag für Sportplätze, insbesondere Tennisplätze
DE3231231A1 (de) * 1982-08-21 1984-03-01 C. Voigt Söhne GmbH & Co, 4620 Castrop-Rauxel Verfahren zur herstellung eines belages fuer sportplaetze, insbesondere tennisplaetze, sowie bewegliche platte zum verlegen auf sportplaetzen, insbesondere tennisplaetzen
DE3629798C2 (de) * 1986-09-02 1998-07-30 Polytan Sportbelagsysteme Gmbh Sportbahn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753322A (zh) * 2009-06-25 2012-10-24 萨德斯卡普有限公司 材料
US11332893B2 (en) 2019-12-13 2022-05-17 C & M Surfaces, LLC Method of resurfacing a sports court

Also Published As

Publication number Publication date
EP0358209A3 (en) 1990-05-16
EP0358209A2 (fr) 1990-03-14
ES2034541T3 (es) 1993-04-01
DE58901980D1 (de) 1992-09-10

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