DE19647981A1 - Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate - Google Patents

Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate

Info

Publication number
DE19647981A1
DE19647981A1 DE19647981A DE19647981A DE19647981A1 DE 19647981 A1 DE19647981 A1 DE 19647981A1 DE 19647981 A DE19647981 A DE 19647981A DE 19647981 A DE19647981 A DE 19647981A DE 19647981 A1 DE19647981 A1 DE 19647981A1
Authority
DE
Germany
Prior art keywords
protection against
insulation
polystyrene foam
foam plate
against frost
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.)
Withdrawn
Application number
DE19647981A
Other languages
German (de)
Inventor
Andreas Bolz
Fritz Krueckau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to DE19647981A priority Critical patent/DE19647981A1/en
Publication of DE19647981A1 publication Critical patent/DE19647981A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/06Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/05Use of geotextiles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

Insulation giving protection against frost consists of an extruded hard polystyrene foam plate with a mesh fabric of synthetic fibres, preferably polyester, attached firmly to one or both sides.

Description

Die Erfindung betrifft Frostschutzdämmplatten für den Gleisunter­ bau mit verbesserter Biegesteifigkeit.The invention relates to anti-freeze insulation panels for the track sub construction with improved bending stiffness.

Zur Frostschutzsicherung im Gleisbau werden üblicherweise auf das Erdplanum bzw. auf eine Planumschutzschicht aus Kiessand Platten aus extrudiertem Schaumpolystyrol (XPS-Platten) gelegt, welche den frostempfindlichen Baugrund (Schluff, Ton) gegen Frost schützen sollen. Damit die Platten bei Belastung nicht brechen, darf der Unterbau keine Unebenheiten aufweisen, was verhältnis­ mäßig aufwendige Planierungsarbeiten erfordert.Frost protection in track construction is usually based on the Earth level or on a level protection layer made of gravel sand slabs made of extruded foam polystyrene (XPS sheets), which the frost-sensitive subsoil (silt, clay) against frost should protect. So that the plates do not break under load, the substructure must not have any unevenness, moderately complex planning work required.

Der Erfindung lag daher die Aufgabe zugrunde, XPS-Platten mit verbesserter Biegesteifigkeit bereitzustellen.The invention was therefore based on the object of using XPS plates to provide improved flexural rigidity.

Gegenstand der Erfindung ist eine Frostschutzdämmung aus extru­ dierten Polystyrol-Hartschaumplatten, die ein- oder vorzugsweise beidseitig mit einem Gittergewebe aus synthetischen Fasern belegt und fest verbunden sind.The invention relates to an anti-freeze insulation made of extru dated polystyrene rigid foam sheets, the one or preferably covered on both sides with a mesh made of synthetic fibers and are firmly connected.

XPS-Platten sind an sich bekannt. Sie zeichnen sich gegenüber anderen Schaumstoffplatten durch gute Steifigkeit und Druck­ festigkeit aus. Die Rohdichte der Platten liegt im allgemeinem zwischen 20 und 60, vorzugsweise zwischen 25 und 50 kg·m-3; ihre Wärmeleitfähigkeit (Meßwert) ist kleiner als 0,035 W·m-1·K-1. Für den vorliegenden Anwendungszweck sind Plattendicken von 30 bis 150, insbesondere von 50 bis 120 mm bevorzugt.XPS plates are known per se. They are characterized by good rigidity and compressive strength compared to other foam sheets. The bulk density of the plates is generally between 20 and 60, preferably between 25 and 50 kg · m -3 ; their thermal conductivity (measured value) is less than 0.035 W · m -1 · K -1 . For the present application, plate thicknesses of 30 to 150, in particular 50 to 120 mm are preferred.

Das Gittergewebe ist ein offenmaschiges Gitter, dessen Maschen aus Fasern bestehen. Dabei sind grundsätzlich alle üblichen syn­ thetischen Fasern, z. B. auf Basis von Polyester, Polyamid, Poly­ ethylen und Polypropylen. Die Maschen liegen vorzugsweise in Form von gewebten Bändern vor, die insbesonders 2 bis 6, bevorzugt 3 bis 5 mm breit sind und eine Zugfestigkeit von mehr als 50, vor­ zugsweise mehr als 60 kN·m-1 aufweisen. Die Maschenweite beträgt 5 bis 30, vorzugsweise 10 bis 20 mm. Die einzelnen Maschen des Gitters sind vorzugsweise wieder miteinander verbunden. Das Git­ tergewebe ist allseitig mit einem Klebstoff beschichtet. Der Klebstoff ist vorzugsweise ein thermoplastischer Kunststoff, der bei Temperaturen unterhalb der Schmelztemperatur des Polystyrols erweicht und in Form einer wäßrigen Dispersion auf das Gitter­ gewebe aufgebracht wurde. Geeignete Schmelzkleber sind solche auf Basis von Polyvinylpropionat, Polyacrylestern, Ethylen/Vinyl­ acetat-Copolymeren, vorzugsweise von Polyvinylacetat.The grid fabric is an open-mesh grid, the mesh of which consist of fibers. Basically all the usual synthetic fibers, z. B. based on polyester, polyamide, poly ethylene and polypropylene. The meshes are preferably in the form of woven ribbons, which are in particular 2 to 6, preferably 3 to 5 mm wide and have a tensile strength of more than 50, preferably more than 60 kN · m -1 . The mesh size is 5 to 30, preferably 10 to 20 mm. The individual meshes of the grid are preferably connected to one another again. The mesh fabric is coated on all sides with an adhesive. The adhesive is preferably a thermoplastic which softens at temperatures below the melting temperature of the polystyrene and has been applied to the grid fabric in the form of an aqueous dispersion. Suitable hotmelt adhesives are those based on polyvinyl propionate, polyacrylic esters, ethylene / vinyl acetate copolymers, preferably polyvinyl acetate.

Geeignete Gittergewebe sind unter der Bezeichnung "Geogitter" im Handel.Suitable mesh fabrics are called "Geogrid" in Trade.

Die Herstellung der erfindungsgemäßen Frostschutzdämmung erfolgt zweckmäßigerweise dadurch, daß das Gittergewebe auf die XPS-Platte aufgelegt und mit dieser heiß verpreßt wird. Dabei werden bevorzugt Temperaturen von 80 bis 110°C, insbesondere von 90 bis 100°C und Drücke von 10 bis 30 bar, insbesondere von 15 bis 25 bar angewandt, die Preßzeit beträgt vorzugsweise 10 bis 60 sec. Dabei schmilzt der Schmelzkleber, mit dem das Gittergewebe beschichtet ist, auf und stellt die feste Verbindung zur XPS-Platte her.The frost protection insulation according to the invention is produced expediently in that the grid fabric on the XPS plate placed and hot pressed with it. In doing so preferably temperatures from 80 to 110 ° C, in particular from 90 to 100 ° C and pressures from 10 to 30 bar, in particular from 15 to 25 bar applied, the pressing time is preferably 10 to 60 seconds melts the hot melt adhesive with which the mesh fabric is coated is on and establishes the fixed connection to the XPS plate.

Beispielexample

Auf eine XPS-Platte mit der Rohdichte 40 kg·m-3 wird ein Gitter­ gewebe aus Polyesterfasern (ARTER GTS 60/60-15 der Fa. SGS Geo­ technik, Linz) aufgelegt. Die Breite der Bänder beträgt 4 mm, die Öffnungsweite 15/15 mm. Das Geogitter ist allseitig mit einem Schmelzkleber auf Basis Polyvinylacetat beschichtet. XPS-Platten und Geogitter werden bei 98°C und 20 bar 25 sec. lang verpreßt.A grid fabric made of polyester fibers (ARTER GTS 60 / 60-15 from SGS Geotechnik, Linz) is placed on an XPS plate with a bulk density of 40 kg · m -3 . The width of the straps is 4 mm, the opening width 15/15 mm. The geogrid is coated on all sides with a hot melt adhesive based on polyvinyl acetate. XPS plates and geogrids are pressed at 98 ° C and 20 bar for 25 seconds.

Die erhaltene verstärkte Platte zeigt im Biegeversuch nach DIN 53 423 keinen Bruch, es erfolgt keine Ablösung des Gewebes.The reinforced plate obtained shows in the bending test DIN 53 423 no break, there is no detachment of the tissue.

Claims (4)

1. Frostschutzdämmung für den Gleisunterbau, bestehend aus ex­ trudierten Polystyrol-Hartschaumplatten welche ein- oder beidseitig mit einem Gittergewebe aus synthetischen Fasern belegt und fest verbunden sind.1. Frost protection insulation for the track substructure, consisting of ex trudged polystyrene rigid foam sheets which one or on both sides with a mesh made of synthetic fibers are occupied and firmly connected. 2. Dämmplatten nach Anspruch 1, dadurch gekennzeichnet, daß das Gittergewebe aus Polyesterfasern besteht.2. Insulation panels according to claim 1, characterized in that the Mesh consists of polyester fibers. 3. Dämmplatten nach Anspruch 1, dadurch gekennzeichnet, daß das Gittergewebe mit einem Klebstoff beschichtet ist, welcher die Verbindung zur Schaumstoffplatte bewirkt.3. Insulation panels according to claim 1, characterized in that the Mesh fabric is coated with an adhesive that the Connects to the foam sheet. 4. Dämmplatten nach Anspruch 3, dadurch gekennzeichnet, daß der Klebstoff ein thermoplastischer Kunststoff ist, der bei Tem­ peraturen unterhalb der Schmelztemperatur des Polystyrols er­ weicht.4. Insulation panels according to claim 3, characterized in that the Adhesive is a thermoplastic, which is at Tem temperatures below the melting temperature of the polystyrene gives way.
DE19647981A 1995-11-23 1996-11-21 Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate Withdrawn DE19647981A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19647981A DE19647981A1 (en) 1995-11-23 1996-11-21 Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543617 1995-11-23
DE19647981A DE19647981A1 (en) 1995-11-23 1996-11-21 Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate

Publications (1)

Publication Number Publication Date
DE19647981A1 true DE19647981A1 (en) 1997-05-28

Family

ID=7778178

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19647981A Withdrawn DE19647981A1 (en) 1995-11-23 1996-11-21 Insulation giving protection against frost, consisting of extruded hard polystyrene foam plate

Country Status (1)

Country Link
DE (1) DE19647981A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055193A1 (en) 2007-11-19 2009-05-20 Robert Bosch Gmbh Sensor arrangement for determining a parameter of a fluid medium
NL2004245C2 (en) * 2010-02-15 2011-08-16 Gemeentewerken Gemeente Rotterdam FOUNDATION CONSTRUCTION, AND INFRASTRUCTURE WITH SUCH FOUNDATION CONSTRUCTION.
EP2631363A1 (en) * 2012-02-21 2013-08-28 Finnfoam Oy Road construction and use of insulation plate in road construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055193A1 (en) 2007-11-19 2009-05-20 Robert Bosch Gmbh Sensor arrangement for determining a parameter of a fluid medium
NL2004245C2 (en) * 2010-02-15 2011-08-16 Gemeentewerken Gemeente Rotterdam FOUNDATION CONSTRUCTION, AND INFRASTRUCTURE WITH SUCH FOUNDATION CONSTRUCTION.
EP2631363A1 (en) * 2012-02-21 2013-08-28 Finnfoam Oy Road construction and use of insulation plate in road construction

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