EP0021028B1 - Method of producing a water-permeable surfacing for play and/or sports grounds - Google Patents

Method of producing a water-permeable surfacing for play and/or sports grounds Download PDF

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Publication number
EP0021028B1
EP0021028B1 EP19800102773 EP80102773A EP0021028B1 EP 0021028 B1 EP0021028 B1 EP 0021028B1 EP 19800102773 EP19800102773 EP 19800102773 EP 80102773 A EP80102773 A EP 80102773A EP 0021028 B1 EP0021028 B1 EP 0021028B1
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EP
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Prior art keywords
weight
water
sand
permeable
binder
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EP19800102773
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German (de)
French (fr)
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EP0021028A3 (en
EP0021028A2 (en
Inventor
Klaus Dr. Gorke
Josef Schoppen
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Huels AG
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Chemische Werke Huels AG
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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

  • sands (1) primarily mean the mineral sediments consisting mainly of quartz (SIO,). However, depending on their origin and origin, they can also contain granules of feldspar, mica, magnetite, titanite, hornblende, garnet, tourmaline and the like [see. Römpps Chemie-Lexikon, 7th edition (1975), 3056/57]. What is important is only the maximum grain size and the grain size distribution, i.e. a maximum grain size of 10 mm (1.2) and a maximum of 12% by weight of a grain size of 2 to 10 mm (1.3). If such sands do not occur naturally, they can easily be obtained by a sieving process or by mixing suitable sieve fractions.
  • the water content of the sands is determined by e.g. B. Fire drying to a maximum of 1 wt .-% (1.1).
  • the sands can be colored powder, such as. B. red lead, iron oxides, chromium oxide and soot, colored mineral powder or glass fibers, are added.
  • the amount of color powder depends, of course, primarily on the desired color of the playground and sports facility surface. It is generally up to 1% by weight, based on sand.
  • Suitable binders (2) which are added to the sands for consolidation in an amount of 3 to 6% by weight, based on 1, are primarily liquid polybutadienes.
  • copolymers of butadiene (1,3) with other 1,3-dienes such as. B. isoprene, 2,3-dimethylbutadiene and piperylene, or with vinyl aromatic compounds, such as e.g. Styrene, a-methylstyrene, vinyltoluene and divinylbenzene can be used.
  • the content of comonomers in the copolymers of 1,3-butadiene should not exceed 50 mol%.
  • the maximum viscosity of the binders that can be used is 2000 mPa s / 20 ° C (2.1); the viscosity is preferably 500 to 1500 mPa s / 20 ° C.
  • the microstructure of the homopolymers and copolymers of butadiene (1,3) is critical in that it is necessary for at least 30% of the double bonds (2.2) to have cis-1,4 structures. In the case of homopolymers and copolymers, more than 50% of the double bonds should preferably have cis-1,4 structures.
  • additives and auxiliaries such as wetting agents, siccatives, skin contraceptives and, if appropriate, odor-improving substances, are added to the binder (s).
  • Suitable wetting agents are anionic emulsifiers, such as fatty acid salts and alkylarylsulfonates, or cationic emulsifiers, such as alkylamine polyglycol ethers or distearyl dimethylammonium salts, but especially nonionic emulsifiers, such as fatty alcohol polyethylene glycol ethers, fatty acid polyalkylene glycols 3-carbonyl or alkylphenol-6-glycol groups or alkylphenol polyglycols or alkylphenol polyglycols with 3 to 6 alkylglycol groups or alkylphenol polyglycols with alkylphenol polyglycol or alkylphenol polyglycol groups or alkylphenol polyglycols with 3 to 6 alkylglycol glycols or alkylphenol polyglycols or alkylphenol polyglycol groups or alkylphenol polyglycols with 6 to 6 alkylglycol groups or alkylphenol polyglycols
  • siccatives e.g. Salts or compounds of cobalt, nickel or iron, in particular cobalt compounds soluble in aliphatic or aromatic solvents, such as e.g. As cobalt octoate, cobalt naphthenate or cobalt oleate, are suitable, which can also be used in the form of their solutions in aliphatic or aromatic solvents.
  • the amount of desiccants to be used depends on the desired crosslinking time; as a rule, their proportion is about 0.01 to 0.2%, preferably 0.08 to 0.18%, based on the amount by weight of binder (2) used, the quantities indicated for the desiccants only relating to their metal content Respectively.
  • Such substances are e.g. Peppermint oil and rose oil. They are generally used in an amount of 0.01 to 1% by weight, preferably 0.05 to 0.5% by weight, based on the binder (2).
  • the preparation of the homogeneous mixture (3) from sand, binder and optionally color powder is carried out in a suitable mixing unit, e.g. a compulsory mixer.
  • the compulsory mixer is characterized by the fact that 2 shafts with mixing arms work in opposite directions in a mixing drum and the mix cannot therefore wind around the mixer.
  • the mixture is intimately mixed when e.g. the color of the mixture appears uniform.
  • the mixing time required for this is generally 1 to 10, preferably 3 to 6, minutes.
  • the homogeneous mixture of screed consistency which therefore does not flow by itself, is applied in a layer thickness of 0.5 to 4.0 cm, preferably 1.0 to 2.5 cm, on a water-permeable, bituminous bound and compacted substructure of at least 2 cm, preferably 2 to 5 cm, of a screed-like thickness (4), optionally smoothing it (5) and allowing it to harden (6).
  • the curing time is 0.5 to 24 hours. An aging period of up to 30 days can follow.
  • ballast layer As a substructure e.g. such, consisting of drainage and an approx. 20 to 40 cm thick, compacted ballast layer as well as another water permeable, bituminous bound and compressed ballast layer of 2 to 5 cm thickness located above it.
  • the bituminous gravel layer can e.g. B. in a known manner with a paver using experience has shown a narrow grain distribution of, for example, 2 to 8 mm grain without fine fraction and a bitumen fraction below 15% by weight, based on crushed stone.
  • the method according to the invention can preferably be used commercially in the production of water-permeable and crack-resistant coverings on tennis courts.
  • commercially available total herbicides can also be added to the screed-like masses in amounts of up to about 1% by weight, based on 2.
  • the binder consists of 95.9% by weight of a liquid polybutadiene with a double bond distribution of 72% cis-1.4, 27% trans-1.4, 1% vinyl, and a viscosity of 764 mPa s / 20 ° C, 1.4 %
  • a nonylphenol polyethylene glycol ether 2.6% by weight of co-octoate solution, 6% by weight of cobalt and 0.1% by weight of a commercially available skin-preventing agent (ASCININ'- 'R).
  • the mixture produced in this way has a very good screed consistency and is entered into a shape of the inside dimensions 4 x 4 x 16 cm. After curing and aging for 17 days, a bending tensile strength of 3.9 n / mm 2 and a compressive strength of 9.2 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.
  • Example 1 99% by weight of sand from Example 1 are mixed with 1% by weight of the binder from Example 1 as in Example 1 and applied. After curing and aging for 17 days, a bending tensile strength of only 0.5 and a compressive strength of only 1.5 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water, but lose their strength.
  • Example 1 92% by weight of sand from Example 1 are mixed with 8% by weight of the binder from Example 1 as in Example 1. The mixture flows like a sludge and can no longer be processed.
  • the irrigation shows that the test specimens are permeable to water and retain their strength.
  • An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.
  • the irrigation shows that the test specimens are permeable to water and retain their strength.
  • An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.
  • Example 1 95.8% by weight of sand from Example 1, 0.2% by weight of a commercially available iron oxide pigment (iron oxide red AKF) and 4% by weight of binder from Example 1 are mixed and applied as in Example 1.
  • the mixture has a very good processability. After curing and aging, a bending tensile strength of 4.5 N / mm 2 and a compressive strength of 9.6 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.
  • An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.
  • Example 1 3% by weight of glass fibers of about 25 to 50 mm in length and about 0.1 mm in thickness are mixed and applied in the screed mixture from Example 1 as in Example 1.
  • the mixture has a very good processability. After curing and aging, a bending tensile strength of 11.8 N / mm 2 and a compressive strength of 8.2 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.
  • An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.
  • Example 1 96% by weight of sand from Example 1 are mixed and applied with 3% by weight of the binder from Example 1 and 1% by weight of commercial soybean oil as in Example 1.
  • the mixture has a very good processability. After curing and aging, a bending tensile strength of 4.5 N / mm 2 and a compressive strength of 10.6 N / m m2 are measured .
  • the irrigation shows that the test specimens are permeable to water and retain their strength.
  • An area of 100M2 on the substructure described in Example 1 shows no crack formation after 1 year.
  • Example 1 96% by weight of sand from Example 1 are mixed with 4% by weight of binder as in Example 1 and applied.
  • the binder consists of 95.9% by weight of a liquid polybutadiene (double bond distribution: 87% vinyl and 13% trans-1.4, viscosity 4750 mPas / 20 ° C.) and 4.1% by weight of the additives from Example 1.
  • the bending tensile strength is only approx. 0.5 N / mm 2 and the compressive strength is only approx. 0.2 N / mm 2 .
  • the material has remained soft on the inside.
  • Example 1 96% by weight of sand from Example 1 are mixed with 4% by weight of binder as in Example 1 and applied.
  • the binder consists of 95.9% by weight of a liquid polybutadiene (double bond distribution: 35% cis-1.4, 30% trans-1.4, 35% vinyl, viscosity 268 mPa s / 20 ° C.) and 4.1 % By weight of the additives from Example 1.
  • the screed-like mixture can be processed very well. After curing and aging, the bending tensile strength is 2.6 N / mm 2 and the compressive strength is 6.2 N / mm 2. When it is irrigated, it can be seen that the test specimens are permeable to water and retain their strength.
  • An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Es ist bekannt, Sand oder ähnliches Erdreich mit chemischen Mitteln zu verfestigen [Strasse und Autobahn (1958), Heft 10; Bitumen-Teere-Asphalte-Peche und verwandte Stoffe (1960), Heft 9, Seiten 358-363; Neue Landschaft (1970), Heft 9, Seite 431; DE-C-1 813 080 und 2 044 777].It is known to solidify sand or similar soil with chemical means [Strasse und Autobahn (1958), No. 10; Bitumen-Teere-Asphalte-Peche and related materials (1960), No. 9, pages 358-363; Neue Landschaft (1970), No. 9, page 431; DE-C-1 813 080 and 2 044 777].

Allen diesen Verfahren ist der Nachteil gemeinsam, dass grosse Mengen Wasser mitverwendet werden müssen. Die Abbindung kann erst dann erfolgen, wenn dieses Wasser verdunstet ist, was je nach Bodentemperatur lange Zeiten in Anspruch nehmen kann.All these processes have the disadvantage that large amounts of water have to be used. The setting can only take place when this water has evaporated, which can take a long time depending on the floor temperature.

Die Mitverwendung von Wasser hat weiterhin den Nachteil, dass beim Abmischen von Sand oder ähnlichem Erdreich sehr schnell schlammartige Massen entstehen, die sich nur schwer verarbeiten lassen. In der Regel benötigt man 1 bis 20 Gew.-% Bindemittel, bezogen auf Sand, um eine genügende Bindung der Körner untereinander zu erzielen und damit die Festigkeit der Mischung zu gewährleisten. Bei ca. 8 Gew.-% flüssigen Bindemittels oder Wasser beginnt jedoch Sand bereits zu fliessen, d.h. bei einer ca.50%igen Dispersion eines Bindemittels in Wasser kann man maximal 3 bis 4 Gew.-% Bindemittel ohne Fliesseffekte einmischen unter der Voraussetzung, dass der Sand oder das Erdreich von Haus aus keinerlei Wasser enthält, was aber praktisch nicht erreichbar ist.The additional use of water has the disadvantage that when sand or similar soil is mixed, sludge-like masses very quickly develop that are difficult to process. As a rule, 1 to 20% by weight of binder, based on sand, is required in order to achieve sufficient binding of the grains to one another and thus to ensure the strength of the mixture. With approx. 8% by weight of liquid binder or water, however, sand already begins to flow, i.e. With an approx. 50% dispersion of a binder in water, a maximum of 3 to 4% by weight of binder can be mixed in without flowing effects, provided that the sand or the soil does not contain any water, but this is practically impossible to achieve.

Aus der DE-A-1 301 277 ist zwar bereits ein Verfahren zur Verfestigung von Böden mit Hilfe eines öligen Homo- oder Mischpolymerisats von 1,3-Dienen als Bindemittel bekannt, bei dem die trocknenden Polyenöle auch in unverdünntem Zustand eingesetzt werden können, jedoch werden die nach diesem Verfahren behandelten Böden nicht nur verfestigt, sondern auch gleichzeitig für Wasser und andere Flüssigkeiten undurchlässig gemacht (vgl. Spalte 1, Zeilen 4-6).From DE-A-1 301 277, a process for the consolidation of soils with the aid of an oily homopolymer or copolymer of 1,3-dienes as a binder is already known, in which the drying polyene oils can also be used in the undiluted state, however the soils treated with this method are not only solidified but also made impervious to water and other liquids at the same time (see column 1, lines 4-6).

Aufgabe der vorliegenden Erfindung war es nun, ein Verfahren zu entwickeln, das die aufgezeigten Nachteile der Verfahren des Standes der Technik ganz oder teilweise überwindet. Das heisst, es galt ein Verfahren bereitzustellen, mit dem es möglich ist, wasserdurchlässige und darüber hinaus rissbeständige Spiel- und/oder Sportstättenbeläge, vorzugsweise Beläge auf Tennisplätzen, mit Hilfe einer nicht fliessenden Mischung aus Sand und einem Zusatz und Hilfsstoffe enthaltenden Polyenöls herzustellen.It was an object of the present invention to develop a method which overcomes the disadvantages of the prior art methods in whole or in part. In other words, a process had to be provided with which it was possible to produce water-permeable and also crack-resistant play and / or sports facility coverings, preferably coverings on tennis courts, with the aid of a non-flowing mixture of sand and a polyene oil containing additives and auxiliaries.

Diese Aufgabe wurde überraschenderweise durch die im Patentanspruch beschriebene Kombination verfahrenskritischer Massnahmen gelöst.This object was surprisingly achieved by the combination of measures critical to the method described in the claim.

Unter Sande (1) werden im Rahmen dieser Erfindung in erster Linie die hauptsächlich aus Quarz (SIO,) bestehenden mineralischen Sedimente verstanden. Sie können jedoch auch - je nach Herkunft und Entstehung - Körnchen aus Feldspat, Glimmer, Magnetit, Titanit, Hornblende, Granat, Turmalin und dergleichen enthalten [s. Römpps Chemie-Lexikon, 7. Auflage (1975), 3056/ 57]. Wichtig ist nur die maximale Korngrösse und die Korngrössenverteilung, d.h. eine maximale Korngrösse von 10 mm (1.2) und ein Anteil von maximal 12 Gew.-% einer Korngrösse von 2 bis 10 mm (1.3). Sofern solche Sande nicht natürlich vorkommen, kann man sie leicht durch ein Siebverfahren oder durch Mischen geeigneter Siebfraktionen erhalten. Vor dem Einsatz bei dem erfindungsgemässen Verfahren ist der Wassergehalt der Sande durch z. B. Feuertrocknung auf maximal 1 Gew.-% (1.1) einzustellen. Bereits bei diesem Verfahrensschritt können den Sanden Farbpulver, wie z. B. Mennige, Eisenoxide, Chromoxid und Russ, farbige Mineralpulver oder Glasfasern, zugesetzt werden. Die Menge an Farbpulver richtet sich natürlich in erster Linie nach der gewünschten Farbe des Spiel- und Sportstättenbelags. Sie beträgt im allgemeinen bis zu 1 Gew.-%, bezogen auf Sand.In the context of this invention, sands (1) primarily mean the mineral sediments consisting mainly of quartz (SIO,). However, depending on their origin and origin, they can also contain granules of feldspar, mica, magnetite, titanite, hornblende, garnet, tourmaline and the like [see. Römpps Chemie-Lexikon, 7th edition (1975), 3056/57]. What is important is only the maximum grain size and the grain size distribution, i.e. a maximum grain size of 10 mm (1.2) and a maximum of 12% by weight of a grain size of 2 to 10 mm (1.3). If such sands do not occur naturally, they can easily be obtained by a sieving process or by mixing suitable sieve fractions. Before use in the method according to the invention, the water content of the sands is determined by e.g. B. Fire drying to a maximum of 1 wt .-% (1.1). Already in this process step, the sands can be colored powder, such as. B. red lead, iron oxides, chromium oxide and soot, colored mineral powder or glass fibers, are added. The amount of color powder depends, of course, primarily on the desired color of the playground and sports facility surface. It is generally up to 1% by weight, based on sand.

Geeignete Bindemittel (2), die den Sanden zur Verfestigung in einer Menge von 3 bis 6 Gew.-%, bezogen auf 1, zugesetzt werden, sind in erster Linie flüssige Polybutadiene. Daneben können aber auch Copolymere des Butadiens-(1,3) mit anderen 1,3-Dienen, wie z. B. Isopren, 2,3-Dimethylbutadien und Piperylen, oder mit vinylaromatischen Verbindungen, wie z.B. Styrol, a-Methylstyrol, Vinyltoluol und Divinylbenzol, eingesetzt werden. Der Gehalt an Comonomeren in den Copolymerisaten des Butadiens-(1,3) soll 50 Mol- % nicht überschreiten.Suitable binders (2) which are added to the sands for consolidation in an amount of 3 to 6% by weight, based on 1, are primarily liquid polybutadienes. In addition, copolymers of butadiene (1,3) with other 1,3-dienes, such as. B. isoprene, 2,3-dimethylbutadiene and piperylene, or with vinyl aromatic compounds, such as e.g. Styrene, a-methylstyrene, vinyltoluene and divinylbenzene can be used. The content of comonomers in the copolymers of 1,3-butadiene should not exceed 50 mol%.

Die maximale Viskosität der einsetzbaren Bindemittel beträgt 2000 mPa s/20°C (2.1); vorzugsweise beträgt die Voskosität 500 bis 1500 mPa s/ 20 °C.The maximum viscosity of the binders that can be used is 2000 mPa s / 20 ° C (2.1); the viscosity is preferably 500 to 1500 mPa s / 20 ° C.

Die Mikrostruktur der Homo- und Copolymerisate des Butadiens-(1,3) ist insofern kritisch, weil es erforderlich ist, dass mindestens 30% der Doppelbindungen (2.2) cis-1,4-Strukturen besitzen. Vorzugsweise sollen bei den Homo- und Copolymerisaten mehr als 50% der Doppelbindungen cis-1,4-Strukturen haben.The microstructure of the homopolymers and copolymers of butadiene (1,3) is critical in that it is necessary for at least 30% of the double bonds (2.2) to have cis-1,4 structures. In the case of homopolymers and copolymers, more than 50% of the double bonds should preferably have cis-1,4 structures.

Es ist im Rahmen der vorliegenden Erfindung natürlich auch möglich, neben den genannten Bindemitteln im begrenzten Masse (ca. 30 Gew.-%, bezogen auf den Gesamtgehalt an Bindemittel) vegetabilische trocknende Öle, wie z.B. Leinöl, Sojaöl und Holzöl, einzusetzen.Within the scope of the present invention, it is of course also possible, in addition to the binders mentioned, to a limited extent (approx. 30% by weight, based on the total binder content) of vegetable drying oils, such as e.g. Linseed oil, soybean oil and wood oil.

Vorzugsweise vor dem Vermischen mit dem Sand werden dem oder den Bindemittel(n) bestimmte Zusatz- und Hilfsstoffe, wie Netzmittel, Sikkative, Hautverhütungsmittel und gegebenenfalls geruchsverbessernde Stoffe, zugesetzt.Preferably, prior to mixing with the sand, certain additives and auxiliaries, such as wetting agents, siccatives, skin contraceptives and, if appropriate, odor-improving substances, are added to the binder (s).

Als Netzmittel sind z.B. anionenaktive Emulgatoren, wie fettsaure Salze und Alkylarylsulfonate, oder kationenaktive Emulgatoren, wie Alkylaminpolyglykolether oder Distearyl-dimethylammonium-Salze, insbesondere aber nichtionogene Emulgatoren, wie z.B. Fettalkoholpolyethylenglykolether, Fettsäurepolyalkylenglykolester oder Alkylphenolpolyglykolether mit 6 bis 12 Kohlenstoffatomen in der Alkylgruppe und 3 bis 80 Ethylenoxid-Einheiten, geeignet, wobei sich insbesondere p-Nonyl-phenolpolyglykolether mit 4 bis 16, vorzugsweise 6 bis 10 angelagerten Ethylenoxid-Einheiten bewährt haben. Sie werden in Mengen von 0,5 bis 10Gew.-%, vorzugsweise 1 bis 5 Gew.-%, bezogen auf 2, eingesetzt.Examples of suitable wetting agents are anionic emulsifiers, such as fatty acid salts and alkylarylsulfonates, or cationic emulsifiers, such as alkylamine polyglycol ethers or distearyl dimethylammonium salts, but especially nonionic emulsifiers, such as fatty alcohol polyethylene glycol ethers, fatty acid polyalkylene glycols 3-carbonyl or alkylphenol-6-glycol groups or alkylphenol polyglycols or alkylphenol polyglycols with 3 to 6 alkylglycol groups or alkylphenol polyglycols with alkylphenol polyglycol or alkylphenol polyglycol groups or alkylphenol polyglycols with 3 to 6 alkylglycol glycols or alkylphenol polyglycols or alkylphenol polyglycol groups or alkylphenol polyglycols with 6 to 6 alkylglycol groups or alkylphenol polyglycol and alkylphenol polyglycol or alkylphenol polyglycol or alkylphenol polyglycol to 3 or alkylphenol polyglycol and alkylphenol polyglycol or alkylphenol polyglycol to 3 or alkylphenol polyglycol and alkylphenol polyglycol in 3 bis or alkylphenol polyglycol Ethylene oxide units, suitable, p-nonyl-phenol polyglycol ethers with 4 to 16, preferably 6 to 10, ethylene oxide units attached having proven particularly useful. They are used in amounts of 0.5 to 10% by weight, preferably 1 to 5% by weight, based on 2.

Als Sikkative sind z.B. Salze oder Verbindungen des Cobalts, Nickels oder Eisens, insbesondere in aliphatischen oder aromatischen Lösemitteln lösliche Cobaltverbindungen, wie z. B. Cobaltoctoat, Cobaltnaphthenat oder Cobaltoleat, geeignet, die auch in Form ihrer Lösungen in aliphatischen oder aromatischen Lösemitteln eingesetzt werden können. Die zu verwendende Menge an Sikkativen richtet sich nach der angestrebten Vernetzungszeit; in der Regel liegt ihr Anteil bei etwa 0,01 bis 0,2%, vorzugsweise bei 0,08 bis 0,18%, bezogen auf die eingesetzte Gewichtsmenge an Bindemittel (2), wobei sich die Mengenangaben für die Sikkative nur auf deren Metallanteil beziehen.As siccatives e.g. Salts or compounds of cobalt, nickel or iron, in particular cobalt compounds soluble in aliphatic or aromatic solvents, such as e.g. As cobalt octoate, cobalt naphthenate or cobalt oleate, are suitable, which can also be used in the form of their solutions in aliphatic or aromatic solvents. The amount of desiccants to be used depends on the desired crosslinking time; as a rule, their proportion is about 0.01 to 0.2%, preferably 0.08 to 0.18%, based on the amount by weight of binder (2) used, the quantities indicated for the desiccants only relating to their metal content Respectively.

Als Hautverhütungsmittel dienen in erster Linie flüchtige Ketoxime, wie z. B. das Handelsprodukt Ascinin, 3 R, die im allgemeinen in einer Menge von 0,02 bis 2 Gew.-%, vorzugsweise 0,05 bis 0,5 Gew.-%, bezogen auf das Bindemittel (2), zugesetzt werden.Primarily volatile ketoximes, such as e.g. B. the commercial product ascinin , 3 R, which are generally added in an amount of 0.02 to 2 wt .-%, preferably 0.05 to 0.5 wt .-%, based on the binder (2).

Da der Eigengeruch des flüssigen Polybutadiens in manchen Fällen als nicht angenehm empfunden wird, ist es angebracht, einen oder mehrere geruchsverbessernde Stoffe zuzusetzen. Solche Stoffe sind z.B. Pfefferminzöl und Rosenöl. Sie werden im allgemeinen in einer Menge von 0,01 bis 1 Gew.-%, vorzugsweise von 0,05 bis 0,5 Gew.-%, bezogen auf das Bindemittel (2) eingesetzt.Since the inherent smell of the liquid polybutadiene is not perceived as pleasant in some cases, it is advisable to add one or more odor-improving substances. Such substances are e.g. Peppermint oil and rose oil. They are generally used in an amount of 0.01 to 1% by weight, preferably 0.05 to 0.5% by weight, based on the binder (2).

Die Herstellung der homogenen Mischung (3) aus Sand, Bindemittel und gegebenenfalls Farbpulver wird in einem geeigneten Mischaggregat, wie z.B. einem Zwangsmischer, vorgenommen.The preparation of the homogeneous mixture (3) from sand, binder and optionally color powder is carried out in a suitable mixing unit, e.g. a compulsory mixer.

Der Zwangsmischer ist dadurch charakterisiert, dass 2 Wellen mit Rührarmen gegenläufig in einer Mischtrommel arbeiten und das Mischgut sich somit nicht um die Rührer wickeln kann.The compulsory mixer is characterized by the fact that 2 shafts with mixing arms work in opposite directions in a mixing drum and the mix cannot therefore wind around the mixer.

Die Mischung ist dann innig vermischt, wenn z.B. der Farbton der Mischung einheitlicherscheint. Die dafür erforderliche Mischzeit beträgt im allgemeinen 1 bis 10, vorzugsweise 3 bis 6, Minuten.The mixture is intimately mixed when e.g. the color of the mixture appears uniform. The mixing time required for this is generally 1 to 10, preferably 3 to 6, minutes.

Anschliessend trägt man die homogene Mischung von Estrich-Konsistenz, die also nicht von selbst fliesst, in einer Schichtdicke von 0,5 bis 4,0 cm, vorzugsweise 1,0 bis 2,5 cm, auf einen wasserdurchlässigen, bituminös gebundenen und verdichteten Unterbau von mindestens 2 cm, vorzugsweise 2 bis 5 cm, Dicke estrichartig auf (4), glättet sie gegebenenfalls (5) und lässt sie aushärten (6). Je nach Bodentemperatur beträgt die Aushärtezeit 0,5 bis 24 Stunden. Eine Alterungszeit bis zu 30 Tagen kann sich anschliessen.Then the homogeneous mixture of screed consistency, which therefore does not flow by itself, is applied in a layer thickness of 0.5 to 4.0 cm, preferably 1.0 to 2.5 cm, on a water-permeable, bituminous bound and compacted substructure of at least 2 cm, preferably 2 to 5 cm, of a screed-like thickness (4), optionally smoothing it (5) and allowing it to harden (6). Depending on the floor temperature, the curing time is 0.5 to 24 hours. An aging period of up to 30 days can follow.

Als Unterbau kann z.B. ein solcher, bestehend aus Drainage und einer ca. 20 bis 40 cm dicken, verdichteten Schotterschicht sowie einer weiteren, sich darüber befindlichen wasserdurchlässigen, bituminös gebundenen und verdichteten Schotterschicht von 2 bis 5 cm Dicke, dienen.As a substructure e.g. such, consisting of drainage and an approx. 20 to 40 cm thick, compacted ballast layer as well as another water permeable, bituminous bound and compressed ballast layer of 2 to 5 cm thickness located above it.

Die bituminös gebundene Schotterschicht kann z. B. in bekannter Weise mit einem Strassenfertiger unter Verwendung einer erfahrungsgemäss engen Kornverteilung von beispielsweise 2 bis 8 mm Korn ohne Feinanteil und einem Bitumenanteil unter 15Gew.-%, bezogen auf Schotter, erstellt werden.The bituminous gravel layer can e.g. B. in a known manner with a paver using experience has shown a narrow grain distribution of, for example, 2 to 8 mm grain without fine fraction and a bitumen fraction below 15% by weight, based on crushed stone.

Das erfindungsgemässe Verfahren ist bevorzugt bei der Herstellung von wasserdurchlässigen und rissbeständigen Belägen auf Tennisplätzen gewerblich anwendbar. Als Vorbeugung gegen einen späteren unerwünschten Bewuchs kann man den estrichartigen Massen auch handelsübliche Totalherbizide in Mengen bis zu ca. 1 Gew.- %, bezogen auf 2, beifügen.The method according to the invention can preferably be used commercially in the production of water-permeable and crack-resistant coverings on tennis courts. To prevent later undesired growth, commercially available total herbicides can also be added to the screed-like masses in amounts of up to about 1% by weight, based on 2.

Das erfindungsgemässe Verfahren wird anhand der nachfolgenden Beispiele und Vergleichsbeispiele näher erläutert.The process according to the invention is explained in more detail with reference to the following examples and comparative examples.

Die darin angegebenen Kenngrössen wurden folgendermassen bestimmt:

  • Wassergehalt des Sandes: Durch Differenzwägung nach Trocknung bis zur Gewichtskonstanz bei 105°C.
The parameters specified therein were determined as follows:
  • Water content of the sand: By differential weighing after drying to constant weight at 105 ° C.

Korngrösse und Korngrössenverteilung nach DIN 4226.Grain size and grain size distribution according to DIN 4226.

Viskosität des Bindemittels nach DIN 53 015.

  • cis-1,4-Gehalt des Bindemittels: IR-spektroskopisch
Viscosity of the binder according to DIN 53 015.
  • Cis 1,4-content of the binder: IR spectroscopic

Wasserdurchlässigkeit und Rissbeständigkeit durch qualitative makorskopische Beurteilung.Water permeability and crack resistance through qualitative macroscopic assessment.

Biegezugfestigkeit und Druckfestigkeit des Belags nach DIN 1164.Bending tensile strength and compressive strength of the covering according to DIN 1164.

Beispiel 1example 1

96 Gew.-% trockener Rheinsand (feuergetrocknet, Wassergehalt 0,45 Gew.-%) mit der Korngruppenverteilung unter 0,04mm 0,1 Gew.-%, 0,04 bis 0,08 mm 0,3 Gew.-%, 0,08 bis 0,16 mm 3 Gew.-%, 0,16 bis 0,25 mm 13,1 Gew.-%, 0,25 bis 0,5 mm 52,6 Gew.-%, 0,5 bis 1,0 mm 21,9 Gew.-%, 1,0 bis 1,6 mm 4 Gew.-%, 1,6 bis 2 mm 1,9 Gew.- %, 2 bis 4 mm 3,0 Gew.-% und 4 bis 8 mm 0,1 Gew.-%, werden mit 4 Gew.-% Bindemittel in einem Zwangsmischer vermischt. Das Bindemittel besteht aus 95,9 Gew.-% eines flüssigen Polybutadiens der Doppelbindungsverteilung 72% cis-1,4, 27% trans-1,4, 1% Vinyl, und der Viskosität 764 mPa s/20°C, 1,4 Gew.-% eines Nonylphenolpolyethylenglykolethers, 2,6 Gew.-% Co-Octoatlösung, 6 Gew.-% Cobalt enthaltend und 0,1 Gew.- % eines handelsüblichen Hautverhütungsmittels (ASCININ'-' R).96% by weight dry Rhine sand (fire-dried, water content 0.45% by weight) with the grain group distribution below 0.04mm 0.1% by weight, 0.04 to 0.08mm 0.3% by weight, 0.08 to 0.16 mm 3 wt%, 0.16 to 0.25 mm 13.1 wt%, 0.25 to 0.5 mm 52.6 wt%, 0.5 to 1.0 mm 21.9% by weight, 1.0 to 1.6 mm 4% by weight, 1.6 to 2 mm 1.9% by weight, 2 to 4 mm 3.0% by weight % and 4 to 8 mm 0.1% by weight are mixed with 4% by weight of binder in a compulsory mixer. The binder consists of 95.9% by weight of a liquid polybutadiene with a double bond distribution of 72% cis-1.4, 27% trans-1.4, 1% vinyl, and a viscosity of 764 mPa s / 20 ° C, 1.4 % By weight of a nonylphenol polyethylene glycol ether, 2.6% by weight of co-octoate solution, 6% by weight of cobalt and 0.1% by weight of a commercially available skin-preventing agent (ASCININ'- 'R).

Die so hergestellte Mischung hat eine sehr gute Estrichkonsistenz und wird in eine Form der Innenabmessung 4 x 4 x 16 cm eingegeben. Nach der Aushärtung und Alterung über 17 Tage misst man eine Biegezugfestigkeit von 3,9 n/mm2 und eine Druckfestigkeit von 9,2 N/mm2. Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.The mixture produced in this way has a very good screed consistency and is entered into a shape of the inside dimensions 4 x 4 x 16 cm. After curing and aging for 17 days, a bending tensile strength of 3.9 n / mm 2 and a compressive strength of 9.2 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf einem verdichteten Unterbau (Kornverteilung 3 bis 7 mm 100%, Bitumengehalt 8 Gew.-%, bezogen auf Schotter, Dichte 3 cm) zeigt auch nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on a compacted substructure (grain distribution 3 to 7 mm 100%, bitumen content 8% by weight, based on gravel, you te 3 cm) shows no crack formation even after 1 year.

Vergleichsbeispiel 1Comparative Example 1

99Gew.-% Sand aus Beispiel 1 werden mit 1 Gew.-% des Bindemittels aus Beispiel 1 wie in Beispiel 1 gemischt und aufgetragen. Nach der Aushärtung und Alterung über 17 Tage misst man eine Biegezugfestigkeit von nur 0,5 und eine Druckfestigkeit von nur 1,5 N/mm2. Bei der Be regnung zeigt sich, dass die Prüfkörper zwar wasserdurchlässig sind, aber ihre Festigkeit einbüssen.99% by weight of sand from Example 1 are mixed with 1% by weight of the binder from Example 1 as in Example 1 and applied. After curing and aging for 17 days, a bending tensile strength of only 0.5 and a compressive strength of only 1.5 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water, but lose their strength.

Vergleichsbeispiel 2Comparative Example 2

92 Gew.-% Sand aus Beispiel 1 werden mit 8 Gew.-% des Bindemittels aus Beispiel 1 wie in Beispiel 1 gemischt. Die Mischung fliesst wie ein Schlamm und ist nicht mehr verarbeitbar.92% by weight of sand from Example 1 are mixed with 8% by weight of the binder from Example 1 as in Example 1. The mixture flows like a sludge and can no longer be processed.

Beispiel 2Example 2

95 Gew.-% trockener Quarzsand (feuergetrocknet, Wassergehalt 0,7 Gew.-%) mit der Kornverteilung 0 bis 0,06mm 0,5 Gew.-%, 0,06 bis 0,09 mm 1,1 Gew.-%, 0,09 bis 0,2 mm 52,1 Gew.- %, 0,2 bis 0,63 mm 46,3 Gew.-% werden mit 5 Gew.-% des Bindemittels aus Beispiel 1 wie in Beispiel 1 gemischt und aufgetragen. Die Mischung hat eine sehr gute Verarbeitbarkeit und wird wie in Beispiel 1 verarbeitet. Nach der Aushärtung und Alterung über 17 Tage misst man eine Biegezugfestigkeit von 10,7 N/mm2 und eine Druckfestigkeit von 24,5 N/mm2.95% by weight of dry quartz sand (fire-dried, water content 0.7% by weight) with a grain size of 0 to 0.06mm 0.5% by weight, 0.06 to 0.09mm 1.1% by weight , 0.09 to 0.2 mm 52.1% by weight, 0.2 to 0.63 mm 46.3% by weight are mixed with 5% by weight of the binder from Example 1 as in Example 1 and applied. The mixture has very good processability and is processed as in Example 1. After curing and aging for 17 days, a bending tensile strength of 10.7 N / mm 2 and a compressive strength of 24.5 N / mm 2 are measured.

Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

Beispiel 3Example 3

96 Gew.-% trockener Mauersand (feuergetrocknet, Wassergehalt 0,2 Gew.-%) mit der Kornverteilung unter 0,04 mm 0,1 Gew.-%, 0,04 bis 0,06 mm 0,1 Gew.-%, 0,06 bis 0,09 mm 0,2 Gew.- %, 0,09 bis 0,2 mm 5,4 Gew.-%, 0,2 bis 0,6 mm 93,5 Gew.-%, 0,6 bis 1 mm 0,5 Gew.-%, 1,0 bis 5,0 mm 0,2 Gew.-%, werden mit 4 Gew.-% des Bindemittels aus Beispiel 1 wie in Beispiel 1 gemischt und verarbeitet. Nach Aushärtung und Alterung misst man eine Biegezugfestigkeit von 5,1 N/mm2 und eine Druckfestigkeit von 12,2 N/ mm2.96% by weight dry wall sand (fire-dried, water content 0.2% by weight) with the grain size distribution below 0.04 mm 0.1% by weight, 0.04 to 0.06 mm 0.1% by weight , 0.06 to 0.09 mm 0.2% by weight, 0.09 to 0.2 mm 5.4% by weight, 0.2 to 0.6 mm 93.5% by weight, 0 , 6 to 1 mm 0.5% by weight, 1.0 to 5.0 mm 0.2% by weight, are mixed with 4% by weight of the binder from Example 1 as in Example 1 and processed. After curing and aging, a bending tensile strength of 5.1 N / mm 2 and a compressive strength of 12.2 N / mm 2 are measured.

Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

Beispiel 4Example 4

95,8 Gew.-% Sand aus Beispiel 1, 0,2 Gew.-% eines handelsüblichen Eisenoxidpigments (Eisenoxidrot AKF) und 4 Gew.-% Bindemittel aus Beispiel 1 werden wie in Beispiel 1 gemischt und aufgetragen. Die Mischung hat eine sehr gute Verarbeitbarkeit. Nach Aushärtung und Alterung misst man eine Biegezugfestigkeit von 4,5 N/mm2 und eine Druckfestigkeit von 9,6 N/mm2. Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.95.8% by weight of sand from Example 1, 0.2% by weight of a commercially available iron oxide pigment (iron oxide red AKF) and 4% by weight of binder from Example 1 are mixed and applied as in Example 1. The mixture has a very good processability. After curing and aging, a bending tensile strength of 4.5 N / mm 2 and a compressive strength of 9.6 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

Beispiel 5Example 5

In die Estrichmischung aus Beispiel 1 werden 3 Gew.-% Glasfasern von ca. 25 bis 50 mm Länge und ca. 0,1 mm Dicke wie in Beispiel 1 eingemischt und aufgetragen. Die Mischung hat eine sehr gute Verarbeitbarkeit. Nach Aushärtung und Alterung misst man eine Biegezugfestigkeit von 11,8 N/mm2 und eine Druckfestigkeit von 8,2 N/ mm2. Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.3% by weight of glass fibers of about 25 to 50 mm in length and about 0.1 mm in thickness are mixed and applied in the screed mixture from Example 1 as in Example 1. The mixture has a very good processability. After curing and aging, a bending tensile strength of 11.8 N / mm 2 and a compressive strength of 8.2 N / mm 2 are measured. The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

Beispiel 6Example 6

96 Gew.-% Sand aus Beispiel 1 werden mit 3 Gew.-% des Bindemittels aus Beispiel 1 und 1 Gew.-% Sojaöl des Handels wie in Beispiel 1 vermischt und aufgetragen. Die Mischung hat eine sehr gute Verarbeitbarkeit. Nach Aushärtung und Alterung misst man eine Biegezugfestigkeit von 4,5 N/mm2 und eine Druckfestigkeit von 10,6 N/ mm2.96% by weight of sand from Example 1 are mixed and applied with 3% by weight of the binder from Example 1 and 1% by weight of commercial soybean oil as in Example 1. The mixture has a very good processability. After curing and aging, a bending tensile strength of 4.5 N / mm 2 and a compressive strength of 10.6 N / m m2 are measured .

Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.The irrigation shows that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100M2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100M2 on the substructure described in Example 1 shows no crack formation after 1 year.

Vergleichsbeispiel 3Comparative Example 3

96 Gew.-% Sand aus Beispiel 1 werden mit 4 Gew.-% Bindemittel wie in Beispiel 1 vermischt und aufgetragen. Das Bindemittel besteht aus 95,9 Gew.-% eines flüssigen Polybutadiens (Doppelbindungsverteilung: 87% Vinyl und 13% trans-1,4, Viskosität 4750 mPa s/20°C) und 4,1 Gew.-% der Zusätze aus Beispiel 1.96% by weight of sand from Example 1 are mixed with 4% by weight of binder as in Example 1 and applied. The binder consists of 95.9% by weight of a liquid polybutadiene (double bond distribution: 87% vinyl and 13% trans-1.4, viscosity 4750 mPas / 20 ° C.) and 4.1% by weight of the additives from Example 1.

Nach Aushärtung und Alterung beträgt die Biegezugfestigkeit nur ca. 0,5 N/mm2 und die Druckfestigkeit nur ca. 0,2 N/mm2. Bei der Prüfung stellt sich heraus, dass das Material innen noch weich geblieben ist.After curing and aging, the bending tensile strength is only approx. 0.5 N / mm 2 and the compressive strength is only approx. 0.2 N / mm 2 . During the test it turns out that the material has remained soft on the inside.

Beispiel 7Example 7

96 Gew.-% Sand aus Beispiel 1 werden mit 4 Gew.-% Bindemittel wie in Beispiel 1 vermischt und aufgetragen. Das Bindemittel besteht aus 95,9 Gew.-% eines flüssigen Polybutadiens (Doppelbindungsverteilung: 35% cis-1,4, 30% trans-1,4, 35% Vinyl, Viskosität 268 mPa s/20°C) und 4,1 Gew.-% der Zusätze aus Beispiel 1.96% by weight of sand from Example 1 are mixed with 4% by weight of binder as in Example 1 and applied. The binder consists of 95.9% by weight of a liquid polybutadiene (double bond distribution: 35% cis-1.4, 30% trans-1.4, 35% vinyl, viscosity 268 mPa s / 20 ° C.) and 4.1 % By weight of the additives from Example 1.

Die estrichartige Mischung lässt sich sehr gut verarbeiten. Nach Aushärtung und Alterung beträgt die Biegezugfestigkeit 2,6 N/mm2 und die Druckfestigkeit 6,2 N/mm2. Bei der Beregnung zeigt sich, dass die Prüfkörper wasserdurchlässig sind und ihre Festigkeit behalten.The screed-like mixture can be processed very well. After curing and aging, the bending tensile strength is 2.6 N / mm 2 and the compressive strength is 6.2 N / mm 2. When it is irrigated, it can be seen that the test specimens are permeable to water and retain their strength.

Eine Fläche von 100 m2 auf dem im Beispiel 1 beschriebenen Unterbau zeigt nach 1 Jahr keinerlei Rissbildung.An area of 100 m 2 on the substructure described in Example 1 shows no crack formation after 1 year.

Vergleichsbeispiel 4Comparative Example 4

96Gew.-% Sand aus Beispiel 1, welcher 4,5 Gew.-% Wasser enthält (normal «trocken»), werden mit 4 Gew.-% Bindemittel aus Beispiel 1 wie in Beispiel 1 vermischt. Die Mischung fliesst schlammartig und ist nicht im Rahmen des erfindungsgemässen Verfahrens zu verarbeiten.96% by weight of sand from Example 1, which contains 4.5% by weight of water (normally “dry”), are mixed with 4% by weight of binder from Example 1 as in Example 1. The mixture flows like a sludge and cannot be processed in the process according to the invention.

Claims (1)

  1. A process for producing a water-permeable surface for playgrounds and/or sports grounds based on a mixture of sand and a liquid homopolymer and/or copolymer of 1,3-butadiene which is crosslinkable under the action of atmospheric oxygen and thereby curable, characterised in that
    1. dried sand and gravel having
    1.1 a water content of not more than 1% by weight, based on 1,
    1.2 a particle size of not more than 10 mm and comprising
    1.3 not more than 12% by weight of coarse sand and gravel of a particle size of 2 to 10 mm and at least 88% by weight of fine sand and very fine sand, both percentages being based on 1, and
    2. 3 to 6% by weight, based on 1, of a liquid homopolymer and/or copolymer of 1,3-butadiene containing additives and assistants such as crosslinking agents, drying agents, skin preventing agents and optionally odour improving agents and having
    2.1 viscosity of not more than 2000 mPa. s at 200C and
    2.2 at least 30% of cis-1,4-double bonds
    3. are intimately mixed with one another, and
    4. the mixture, which optionally contains a colouring agent in powder form, is applied in a known manner like a plaster to a water-permeable, bitumen-bound, compressed substrate layer having a thickness of at least 2 cm,
    5. is optionally smoothed, and
    6. is allowed to harden.
EP19800102773 1979-06-21 1980-05-20 Method of producing a water-permeable surfacing for play and/or sports grounds Expired EP0021028B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792925005 DE2925005A1 (en) 1979-06-21 1979-06-21 METHOD FOR PRODUCING A WATERPROOF GAME AND / OR SPORTS COVERING
DE2925005 1979-06-21

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EP0021028A2 EP0021028A2 (en) 1981-01-07
EP0021028A3 EP0021028A3 (en) 1981-02-25
EP0021028B1 true EP0021028B1 (en) 1983-09-21

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109392A1 (en) * 1981-03-12 1982-10-21 Wolfgang 4790 Paderborn Neubauer Floor covering for sports surfaces and process for the production thereof
DE3148561C2 (en) * 1981-12-08 1985-08-08 J.F. Adolff Ag, 7150 Backnang Sports field covering sheet and method for covering a sports field with such covering sheets
GB9603057D0 (en) * 1995-11-07 1996-04-10 Castlefield Greenway Building Building material
DE10001814B4 (en) * 2000-01-18 2005-03-03 Wolfgang Bacher Soil mixture for the footing of a riding ground and method for producing the footing of a riding ground
GB2415700A (en) * 2004-07-02 2006-01-04 Tarmac Recycling Ltd Building material derived from plastics
DE102005002468B4 (en) * 2005-01-18 2009-03-12 Stremmer Sand + Kies Gmbh Footing for riding places

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB233786A (en) * 1924-02-15 1925-05-15 Arthur Kelway Bamber Improvements in tennis courts, badminton courts, sports grounds and the like
DE1124862B (en) * 1956-04-09 1962-03-01 Bruno Weber & Sohn Covering compound for play and sports fields
FR1266752A (en) * 1959-08-03 1961-07-17 Exxon Research Engineering Co Production of thermoplastic mixtures of solid particles bound by one or more linear polyolefins
FR1291636A (en) * 1961-03-14 1962-04-27 Routiere Colas Soc Process for the coating of grounds and coatings thus obtained
DE1301277B (en) * 1963-09-14 1969-08-14 Basf Ag Method of consolidating soil
FR2099605B3 (en) * 1970-07-25 1974-04-05 Invernizzi Luigi
FR2132523B3 (en) * 1971-04-06 1974-02-15 Basse Georges
GB1373214A (en) * 1971-11-04 1974-11-06 Ici Ltd Composite materials
FR2188596A5 (en) * 1972-06-12 1974-01-18 Technosport Soil coverings for sports grounds - contg. polyurethane resin, gives resilient surfaces
DE2233197A1 (en) * 1972-07-06 1974-01-24 Wolfer & Goebel Kg SYNTHETIC RESIN MORTAR FOR REPAIRING ROAD DAMAGE
IT1021122B (en) * 1973-09-06 1978-01-30 Schering Ag MASSES OF SYNTHETIC RESIN
DE2823375A1 (en) * 1978-05-29 1979-12-06 August Quakernack Strassen Und Rubber-contg. flooring compsn. for sports and playing grounds - contains quartz sand and cold bitumen-bonded chips

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EP0021028A3 (en) 1981-02-25
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