EP0730695A1 - Joints de dilatation pour espace vide - Google Patents

Joints de dilatation pour espace vide

Info

Publication number
EP0730695A1
EP0730695A1 EP95902841A EP95902841A EP0730695A1 EP 0730695 A1 EP0730695 A1 EP 0730695A1 EP 95902841 A EP95902841 A EP 95902841A EP 95902841 A EP95902841 A EP 95902841A EP 0730695 A1 EP0730695 A1 EP 0730695A1
Authority
EP
European Patent Office
Prior art keywords
seal
seal according
fire
gap
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95902841A
Other languages
German (de)
English (en)
Other versions
EP0730695B1 (fr
Inventor
Arasapillai N. Ganendran
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.)
BTR PLC
Original Assignee
BTR PLC
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 BTR PLC filed Critical BTR PLC
Publication of EP0730695A1 publication Critical patent/EP0730695A1/fr
Application granted granted Critical
Publication of EP0730695B1 publication Critical patent/EP0730695B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/948—Fire-proof sealings or joints

Definitions

  • This invention relates to gap seals, especially to seals for gaps between structural elements such as panels in building structures.
  • the present invention provides a seal or joint for installation in such gaps, and which accommodates variation in the size of the gap and changes in the gap size resulting from movement of the panels, for instance by expansion or contraction or lateral movement of one or more adjoining panels.
  • Such seals are sometimes referred to as expansion joints.
  • the seal or joint of this invention also provides a fire-resistant barrier seal which additionally may confer thermal and/or acoustic and/or moisture insulation.
  • the seal of the invention has a tubular form. It is flexible and is resiliently radially compressible.
  • the tube may be produced in long lengths, for example by extrusion, for cutting to lengths required for the gap to be sealed.
  • the seal is based on a composition comprising elastomeric material and intumescent material.
  • Preferred additional ingredients include a fire-retardant agent and/or a fusible inorganic binder.
  • Suitable ingredients include a reinforcing filler and/or a light ⁇ weight filler.
  • One or more additional ingredients such as those known for use in elastomeric compositions, may also be present.
  • the seal may comprise a laminate of the composition with one or more layers of other material.
  • the elastomeric material provides a binder for the other composition ingredients.
  • it may be a synthetic rubber.
  • it is curable at a temperature lower than that at which the intumescent material commences to intumesce.
  • a preferred elastomeric material is epdm.
  • a suitable intumescent material is expandable graphite material.
  • Such material usually comprises chemically-treated graphite which commences to expand by several times its original volume, e g 100-200 times, when heated above a critical temperature, e g about 190 ° C.
  • Examples of expandable graphite materials are those available under the trade name 'CALLOTEK', for instance 'CALLOTEK 100' or 'CALLOTE 500'.
  • the composition contains a high proportion of intumescent material.
  • the ratio of intumescent material to elastomeric material may be at least 1 :1 by weight.
  • the fire-retardant agent suitably is an ablative material.
  • a preferred fire-retardant agent is alumina trihydrate. It is found that alumina trihydrate also enables an increase in the temperature employed for curing the elastomeric material in the composition without premature activation of the intumescent material.
  • the fusible inorganic binder is a material which is capable of melting and resolidifying at elevated temperatures such as fire temperatures.
  • a preferred fusible material comprises glass particles.
  • the fusible material comprises a mixture of particles having different melting points, suitably commencing at about 200 ° C. Such a particle mixture may melt progressively over a temperature range of about 200 ° C to 900 ° C, for instance about 350 ° C to 700 ° C.
  • the material then resolidifies above the melting temperature. For instance, resolidification may commence at a temperature above about 700 ° C or above about 900" C to form a crystalline solid. In doing so, it acts as a binder for maintenance of stability of the seal in fire conditions.
  • suitable fusible glass particles are those available under the trade name "Ceepree" ex ICI/Brunner Mond & Company.
  • a suitable reinforcing filler for the composition is carbon black.
  • a suitable light-weight filler may be, for instance, hollow microspheres such as polymeric microbalioons.
  • the polymeric microbalioons preferably are of a resilient material, for example epdm.
  • Suitable resilient microbalioons are those obtainable under the trade name 'EXPANCEL'.
  • Other ingredients may be selected from, for example, curatives, accelerators, processing aids, anti-ageing agents, fungicides, pigments, fibre reinforcements, etc.
  • composition suitable for a seal or joint according to the invention may have the following formulation:- In ⁇ redien ⁇ s Parts by weight
  • Intumescent agent (expandable graphite) 100-200
  • Fire-retardant agent (alumina trihydrate) 20
  • composition ingredients may be blended by conventional techniques.
  • the tubular form of the seal may be produced by, for instance, extrusion of the composition.
  • the composition may be subjected to elastomer-curing conditions in its tubular form.
  • the cure temperature preferably should be below that at which the intumescent material would start to intumesce.
  • An example of a suitable cure temperature is about 150 ° C.
  • the seal is suitable for indoor and outdoor applications.
  • the external diameter of the seal in its uncompressed state is greater than the width of the gap to be sealed, so that the seal is held in compressed state in the gap.
  • a preferred level of compression of the seal in the gap is at least about 20% of the uncompressed seal diameter.
  • the tubular wall thickness of the seal preferably should be such that, when the seal is subjected to fire conditions which degrade the elastomeric material, the composition expands intumescently into the hollow of the tube and across the gap to maintain or increase the barrier effect of the seal, and thereby prevents traverse of flame, smoke and other hazardous fire products.
  • the ratio of the tubular wall thickness to the uncompressed seal external diameter may be in the range of, for instance, 0.08:1 to 0.5:1. Preferably the ratio is at least about 0.1 :1.
  • the cross-sectional outer shape of the tubular wall of the seal may be of any shape suitable for fitting the seal into the gap to be sealed.
  • the tubular wall of the seal in its normal uncompressed state, has a substantially circular cross-sectional surface shape, but alternatively it may have, for instance, an elliptical or a polygonal outer surface shape.
  • the seal may be provided with one or more longitudinal slits in the wall, extending from the external surface thereof, to facilitate compression for insertion into a gap.
  • One such slit may penetrate completely through the wall if desired, and in that case the seal preferably should be located in the gap such that the slit is not exposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Fireproofing Substances (AREA)
  • Sealing Material Composition (AREA)

Abstract

L'invention se rapporte à un joint de dilatation pour espace vide entre des éléments structurels, par exemple entre des panneaux dans des structures de construction; ce joint est de forme tubulaire flexible, il se comprime radialement de manière élastique, fait office de barrière coupe-feu dans un incendie, et est basé sur une composition comprenant un matériau élastomère ainsi qu'un matériau intumescent en proportions importantes.
EP95902841A 1993-11-26 1994-11-25 Joints de dilatation pour espace vide Expired - Lifetime EP0730695B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9324344 1993-11-26
GB9324344A GB2284218B (en) 1993-11-26 1993-11-26 Fire-resistant gap seal
PCT/GB1994/002588 WO1995014828A1 (fr) 1993-11-26 1994-11-25 Joints de dilatation pour espace vide

Publications (2)

Publication Number Publication Date
EP0730695A1 true EP0730695A1 (fr) 1996-09-11
EP0730695B1 EP0730695B1 (fr) 1998-01-28

Family

ID=10745751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95902841A Expired - Lifetime EP0730695B1 (fr) 1993-11-26 1994-11-25 Joints de dilatation pour espace vide

Country Status (5)

Country Link
EP (1) EP0730695B1 (fr)
AU (1) AU1193895A (fr)
DE (1) DE69408338D1 (fr)
GB (1) GB2284218B (fr)
WO (1) WO1995014828A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572948B1 (en) 2000-10-31 2003-06-03 3M Innovative Properties Company Fire stop device with rupturable element
CN101275036B (zh) * 2007-03-28 2011-04-20 南京理工大学 聚合物导电纳米复合材料的制备方法
DE502007005489D1 (de) 2007-12-20 2010-12-09 Schuh Co Gmbh Felix Dichteinrichtung für eine Fuge und Fuge
DE102010047772A1 (de) * 2010-10-08 2012-04-12 Phoenix Dichtungstechnik Gmbh Dichtungs- oder Dämpfungsprofil
CA2989713A1 (fr) 2016-12-20 2018-06-20 Clarkwestern Dietrich Building Systems Llc Accessoire de finition comprenant un joint de latte de support pour une construction murale
US11885138B2 (en) 2020-11-12 2024-01-30 Clarkwestern Dietrich Building Systems Llc Control joint
USD1026252S1 (en) 2020-11-12 2024-05-07 Clarkwestern Dietrich Building Systems Llc Control joint

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566541A (en) * 1969-03-06 1971-03-02 Rixson Inc Protective barrier for products of combustion
DE2503712A1 (de) * 1975-01-30 1976-08-05 Bayer Ag Brandschutz-dichtungselemente
DE3404221A1 (de) * 1984-02-07 1985-08-08 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Verfahren zur im brandfall wirksamen abdichtung von oeffnungen in bauteilen
JPS6270478A (ja) * 1985-09-25 1987-03-31 Sumitomo Electric Ind Ltd 難燃性ゴムパツキン
DE3735779A1 (de) * 1987-10-22 1989-05-03 Irbit Research & Consulting Ag Dichtungselement
DE3917518A1 (de) * 1989-05-30 1990-12-06 Bayer Ag Brandschutzelemente

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9514828A1 *

Also Published As

Publication number Publication date
EP0730695B1 (fr) 1998-01-28
DE69408338D1 (de) 1998-03-05
GB2284218A (en) 1995-05-31
GB2284218B (en) 1997-06-04
GB9324344D0 (en) 1994-01-12
AU1193895A (en) 1995-06-13
WO1995014828A1 (fr) 1995-06-01

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