EP0306834B1 - Mehrschichtiges Fugenüberbrückungsmaterial, Verfahren zu seiner Herstellung und seine Verwendung - Google Patents

Mehrschichtiges Fugenüberbrückungsmaterial, Verfahren zu seiner Herstellung und seine Verwendung Download PDF

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Publication number
EP0306834B1
EP0306834B1 EP88114272A EP88114272A EP0306834B1 EP 0306834 B1 EP0306834 B1 EP 0306834B1 EP 88114272 A EP88114272 A EP 88114272A EP 88114272 A EP88114272 A EP 88114272A EP 0306834 B1 EP0306834 B1 EP 0306834B1
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EP
European Patent Office
Prior art keywords
layer
making
covering
joint covering
joint
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
EP88114272A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0306834A1 (de
Inventor
Willy Ott
Otto Schubert
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.)
Hoechst AG
Carl Freudenberg KG
Original Assignee
Hoechst AG
Carl Freudenberg KG
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 Hoechst AG, Carl Freudenberg KG filed Critical Hoechst AG
Priority to AT88114272T priority Critical patent/ATE69630T1/de
Publication of EP0306834A1 publication Critical patent/EP0306834A1/de
Application granted granted Critical
Publication of EP0306834B1 publication Critical patent/EP0306834B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6809—Reverse side strips

Definitions

  • the application relates to a multilayer joint bridging material, a process for its production and its use.
  • expansion joints and connection joints are required for many construction types. Such interruptions in buildings are intended to compensate for the changes in length of the materials, both in the manufacture of the building and in the event of later influence from temperature fluctuations.
  • the joints are either created by recesses in the manufacture of the surface or they are created when prefabricated parts are joined together. Such an example is e.g. the laying of pipes.
  • sealants are plastic or elastic materials such as bitumen, silicone rubber or others.
  • press-in foam strips made of different materials are often used, often in combination with the above-mentioned materials.
  • sealing tapes made of flexible plastics such as polyisobutylene, soft PVC, high-pressure polyethylene, etc.
  • Joint tapes of the conventional type can be attacked, for example, by weather influences and micro-cracked by depolymerizing influences on the surface will. The consequence is also increased permeability or sometimes spontaneous tearing of the tape in the joint. Often there is no tightness to the investment material due to the lack of liability. In addition, there is no satisfactory solution for joints that collide or intersect at angles.
  • a joint bridging tape made of neoprene or ethylene propylene rubber (EPR) is known, the edge region of which is reinforced with strip material of metallic or non-metallic character with high tensile strength (US Pat. No. 3,455,077).
  • the reinforcement between the material to be bridged, the tape and the strip material is carried out with an adhesive based on high molecular weight polyisobutylene with a low molecular weight content in heavy gasoline.
  • the system is structured as follows: A solvent-free 2-component system consisting of an epoxy resin and an amine hardener is used to seal the concrete surface.
  • a rubber-elastic polyurethane layer consisting of a polyol and an isocyanate hardener is applied to this layer, which is followed by the application of the actual chemical-resistant surface layer.
  • This surface layer consists of a modified phenol-formaldehyde resin with an acidic hardener, which can be applied together with a glass fiber insert as a laminate layer.
  • the present invention has for its object to provide a liquid-tight, chemical-resistant, flexible expansion joint bridging in combination with a suitable connection compound, which does not have the disadvantages mentioned.
  • films of 0.2 to 5.0, preferably 0.7 to 1.5, in particular approximately 1 mm thick and approximately 240 mm wide are generally used.
  • the width of the tapes can vary depending on the purpose and type of use, e.g. widths of 100 to 500 mm are suitable.
  • the preforming of a middle loop may not be necessary.
  • the loop is then created manually during embedding.
  • a continuous bead of, for example, 20 mm wide and 20 mm deep with bevelled side surfaces is produced in the manufacture of the tape by conventional manufacturing methods for thermoplastics or elastomers.
  • prefabricated shaped pieces which generally have the same dimensions in terms of thickness and width as the foils used for the joint tape.
  • This can be T-shaped and cross-shaped parts or transitions from floor to wall joint, d. H. angular.
  • the production takes place with appropriate tools, e.g. by deep drawing; Injection molding is also possible.
  • Parts made of elastomers can be manufactured using the usual methods of rubber processing. The free ends in the longitudinal direction are connected with joint tape to further bridge the joints.
  • the individual parts should be made at least in such a size that the free-standing ends ensure a perfect connection with the joint tapes.
  • All plastic parts and tapes generally have recesses, for example, peripheral perforations of at least 10 mm in diameter, so that a good anchoring in the connecting mass is guaranteed.
  • Thermoplastic materials and elastomers are generally used as the material for the production of the joint tapes and the prefabricated individual parts.
  • Examples include polyethylene, polypropylene, polystyrene, polyester, polyamides, poly (meth) acrylates, polyvinylidene fluoride, polyvinyl chloride, polytetrafluoroethylene, fluoropolymers, elastomers such as natural or synthetic rubber types or fluoroelastomers.
  • woven or non-woven material made from these materials can also be used in the form of laminates, with metal mesh also serving as an insert in the latter. In many cases it is a prerequisite when using such substances that, like the resins used for the lamination, they have sufficient resistance to chemicals and weathering.
  • the curable plastics which are used as the connection (coating) composition can generally be cured with the hardener substances known for curing at room temperature, for example polyamines, inorganic and organic acids, polyisocyanates and organic peroxide compounds.
  • the hardener substances known for curing at room temperature
  • the plastics that can be used do not result in an adhesive and tight connection to the connecting compound, which can consist, for example, of thermosets such as phenoplasts, aminoplasts, polyurethanes, epoxy and unsaturated polyester resins, but also of the thermoplastic or elastic plastics already mentioned above.
  • a special pretreatment, ie an etching of the plastic parts and tapes is therefore necessary.
  • the prefabricated joint parts are generally connected with tapes of different lengths depending on the local conditions. This can be done, for example, by welding, gluing or, in the case of elastomers, by vulcanization.
  • the composite is to be produced by means of adhesive, it can often be carried out with the same reactive resin that is used for the connection coating.
  • the installation of a thin glass fiber fleece is advisable because of the better flexibility of the glue point.
  • connection coating composition which consists of the above-mentioned substances.
  • the system of epoxy resin, polyurethane and phenolic resin already mentioned can also be used advantageously according to the invention with the plastic parts and strips.
  • an unmodified liquid epoxy resin with an epoxy equivalent of 175-185 is used as the epoxy component.
  • Polyamines, for example 4,4′-diaminodiphenylmethane, Bis-cyclohexylaminomethane, 3,3'-dimethyl-4,4'-diaminodiphenylmethane can be used, the mixing ratio being 1-3: 1, preferably 2: 1 parts by weight.
  • the rubber-elastic layer consists of compounds bearing hydroxyl groups, e.g. a polyol such as "Poly BD” from Sartomer, Westchester, PA, USA and a polyisocyanate hardener, for example tolylene-2,4-, toluene-2,6-, cyclohexylene-1,4-, isophorone or diphenylmethane diisocyanate and Xylylene diisocyanates.
  • the two components are generally used in a mixing ratio of 1-5: 1, preferably 2-4: 1 parts by weight.
  • Phenol resols for example, can be used as modified phenol-formaldehyde resins.
  • Such a medium viscosity and a molar ratio of phenol: formaldehyde of 1: 1.75 is preferred.
  • Organic sulfonic acids such as benzenesulfonic acid, p-toluenesulfonic acid and others. can be used as a hardener for the phenol-formaldehyde resins in conventional amounts. In the following description, the hardeners used are generally no longer mentioned in the resins to be used.
  • the structure of the bridging according to the invention is carried out as follows, it being understood that the resin components and the reinforcing insert, that is to say the connecting layer, are only applied to the edges of the substrates to be bridged and the compensators effect the actual bridging of the joints: the epoxy resin the sealing layer to be applied first. This is followed by the crack-bridging rubber-elastic layer made of polyurethane. Both functionally have only barrier and crack-bridging properties and are not always necessary.
  • the embedding is not limited to laminate systems.
  • the expansion joints can also be installed in chemical-resistant bricks, for example in production boilers, laboratory buildings, etc.
  • a coating system consisting of a liquid epoxy resin (EA 175-185) and 4,4'-diaminodiphenylmethane, mixing ratio 2: 1 / "Poly BD” and diphenylmethane diisocyanate, mixing ratio 4: 1 / a medium-viscosity phenoresol with a Molar ratio of phenol: formaldehyde of 1.75, which contained an organic sulfonic acid as a hardener.
  • the epoxy resin was applied to the substrate in a thickness of approx. 0.5 mm (a). After approx. 24 hours, (b) followed, the application of the polyol (approx. 2 mm) and after a further 24 hours (c) the phenolic resin and the expansion joints in the following order: 1) glass fiber mat impregnated with phenolic resin (weight per unit area 450 g / m2) , 2) compensators, 3) like 1), 4) cover fleece made of glass fiber (basis weight 30 g / m2), also impregnated with phenolic resin (total layer thickness (c) approx. 3 mm).
  • the etching was carried out with liquid ammonia in which metallic sodium was dissolved.
  • a reinforced concrete slab (1) with the dimensions 230 x 200 x 40 mm was coated on one side with epoxy resin (2) and polyol (3) in such a way that a circular place (approx. 30 mm diameter) concrete (4) remained free.
  • a hole of the same size was previously punched into the textile glass mats to be applied subsequently.
  • the upper textile glass mat soaked with phenolic resin (7).
  • the sample was loaded in a bending testing machine in such a way that a crack (8) of 0.2 mm in width was produced across the entire plate. After unloading, the remaining crack width should be at least 0.05 mm.
  • a cylinder with an inner diameter of 100 mm (9) was placed on the site to be tested. The cylinder was filled with about 500 ml of colored dichloromethane (10) and pressurized (1 bar). After 42 days at 1 bar, the test arrangement was disassembled and checked for leaks.
  • Example 2 The experimental setup was as described in Example 1. A well had previously been deep-drawn in the embedded film. Diameter 20 mm, depth 20 mm, with rounded bottom. Accordingly, there was a recess in the concrete base used been incorporated. Storage liquid was dichloromethane here too.
  • the laminate, the connection to the film, the film and the film in the thermally and mechanically stressed deep-drawn area of the well were sealed against the test medium.
  • a small segment was immediately coated with phenolic resin laminate on the surface pretreated in this way. Then the parts were stored at room temperature and exposure to light. After 4 days / 1 week / 2 weeks / 1 month / 2 months / 3 months, a section was coated again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Building Environments (AREA)
EP88114272A 1987-09-08 1988-09-01 Mehrschichtiges Fugenüberbrückungsmaterial, Verfahren zu seiner Herstellung und seine Verwendung Expired - Lifetime EP0306834B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114272T ATE69630T1 (de) 1987-09-08 1988-09-01 Mehrschichtiges fugenueberbrueckungsmaterial, verfahren zu seiner herstellung und seine verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3730050 1987-09-08
DE19873730050 DE3730050A1 (de) 1987-09-08 1987-09-08 Mehrschichtiges fugenueberbrueckungsmaterial, verfahren zu seiner herstellung und seine verwendung

Publications (2)

Publication Number Publication Date
EP0306834A1 EP0306834A1 (de) 1989-03-15
EP0306834B1 true EP0306834B1 (de) 1991-11-21

Family

ID=6335491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114272A Expired - Lifetime EP0306834B1 (de) 1987-09-08 1988-09-01 Mehrschichtiges Fugenüberbrückungsmaterial, Verfahren zu seiner Herstellung und seine Verwendung

Country Status (5)

Country Link
EP (1) EP0306834B1 (enrdf_load_html_response)
AT (1) ATE69630T1 (enrdf_load_html_response)
DE (2) DE3730050A1 (enrdf_load_html_response)
ES (1) ES2028215T3 (enrdf_load_html_response)
GR (1) GR3003799T3 (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827503C2 (de) * 1988-08-12 1999-09-02 Schoop & Co Ag Dehnfugenband
DE19540052B4 (de) * 1995-10-27 2004-08-12 Sgl Acotec Gmbh Korrosionsbeständiges Bauteil aus Metall

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455077A (en) * 1964-12-29 1969-07-15 Johns Manville Joint sealing tape
BE759157A (fr) * 1970-04-29 1971-04-30 Royston Lab Joints pour l'assemblage de batiments et procedes pour leur fabricatio
DE2025697A1 (de) * 1970-05-26 1971-12-09 Traber, Fritz, 8000 München Elastisches Zweikomponentenfugendeckband mit Haftstifteinlage für Gasbeton
DE2702330C3 (de) * 1977-01-21 1983-12-08 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zum Herstellen einer großflächigen elastischen fugenlosen Beschichtung
DE2941365A1 (de) * 1979-10-12 1981-04-23 Traugott Niederrohrdorf Schopp Vorrichtung zum ueberbruecken der fuge zwischen zwei teilen einer dacheindeckung
DE8621064U1 (de) * 1986-08-06 1986-12-04 Correcta GmbH, 3590 Bad Wildungen Labyrinth-Foliendichtung zur Abdeckung einer Fuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Asplit-Beschichtungssystem für Auffangwannen und -räume aus Stahl- beton - Prüfbescheid - Prüfzeichen, PA - VI - 211.019; Institut für Bautechnik,Berlin *

Also Published As

Publication number Publication date
GR3003799T3 (enrdf_load_html_response) 1993-03-16
EP0306834A1 (de) 1989-03-15
ES2028215T3 (es) 1992-07-01
DE3730050A1 (de) 1989-03-16
DE3866317D1 (de) 1992-01-02
ATE69630T1 (de) 1991-12-15

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