EP0213103A1 - Brandhemmende Konstruktion - Google Patents

Brandhemmende Konstruktion Download PDF

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Publication number
EP0213103A1
EP0213103A1 EP86850282A EP86850282A EP0213103A1 EP 0213103 A1 EP0213103 A1 EP 0213103A1 EP 86850282 A EP86850282 A EP 86850282A EP 86850282 A EP86850282 A EP 86850282A EP 0213103 A1 EP0213103 A1 EP 0213103A1
Authority
EP
European Patent Office
Prior art keywords
fire retarding
retarding body
body according
fire
water
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Withdrawn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
EP86850282A
Other languages
English (en)
French (fr)
Inventor
Mats Larsson
Rolf Ulfvengren
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.)
LAXA BRUKS AB
Original Assignee
LAXA BRUKS AB
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 LAXA BRUKS AB filed Critical LAXA BRUKS AB
Publication of EP0213103A1 publication Critical patent/EP0213103A1/de
Withdrawn legal-status Critical Current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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7401—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using panels without a frame or supporting posts, with or without upper or lower edge locating rails
    • E04B2/7403—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using panels without a frame or supporting posts, with or without upper or lower edge locating rails with special measures for sound or thermal insulation including fire protection

Definitions

  • a further way of retarding the temperature rise within a fire protected space has been to make the very structure heavy, that is to give the outer surfaces a large heat capacity. In such case the structures also become difficult to move and they get a restricted storing volume.
  • Glauber's salt which by a phase inversion from solid to liquid state retards the temperature rise in the protected area. This is a relatively good solution but there is a limited possibility of stopping the temperature rise depending on the relatively low heat absorption.
  • the present invention intends to overcome the disadvantages and lacks of the previously known solutions. Like in other solutions the invention is based on the idea that the protective area is delimited or surrounded by walls which are built up by special fire retarding bodies or structures.
  • the said fire retarding structures comprise an isolation material for instance mineral wool, which has been made form resistant by means of a binder and have been shaped to a plane or curved disc in the side surface or the interior of which one or more closed hollow spaces have been formed extending parallelly to the main surfaces of the disc and in which hollow spaces closed and diffusion sealed containers are enclosed, which containers are filled with water bound in an absorption material providing a fixed mass from which water or water steam can be released when the mass is heated.
  • an isolation material for instance mineral wool, which has been made form resistant by means of a binder and have been shaped to a plane or curved disc in the side surface or the interior of which one or more closed hollow spaces have been formed extending parallelly to the main surfaces of the disc and in which hollow spaces closed and diffusion sealed containers are enclosed, which containers are filled with water bound in an absorption material providing a fixed mass from which water or water steam can be released when the mass is heated.
  • the isolation material of the fire retarding structure is heat resistant or possible non-inflammable.
  • the material should be of a type having an open porosity, and preferably the material can be unisotropic, so that the water gets a stronger distribution in the surface direction than in the depth direction thereof.
  • Glauber's salt contains water. In such case still increased possibilities of dumping the temperature rise are obtained.
  • the containers should be adapted to split up or burst at a temperature slightly above 100°C. This is possible by forming the containers as two co-operating container halves which have been sealed, for instance welded together with a material which has lost at least a substantial part of the joining ability at the said temperature of slightly over 100°C. Generally the containers burst depending on the pressure build up at an elevated temperaure.
  • the isolation material should be disposed so that a thicker part thereof is located on the inner side of the containers. As long as the water is evapourated the temperature is kept at 100°C and the isolation material should protect the heat sensitive material even from said temperature. It has, however, proved that the best effect is obtained if a larger part of the isolation material on the contrary is disposed on the outer side of the containers.
  • the water containing containers have a large surface.
  • the containers have a surface of at least 70% and preferably at least 85% of the surface of the fire retarding body.
  • a layer of isolation material should be disposed in between each such layers of containers.
  • silica gel is very useful as absorption material.
  • more simple absorbtion materials are mentioned more or less developed products on cellulosis base in the most simple case even ordinary peat litter.
  • starch derivates having a very high absorption ability.
  • the choice of absorption material is an economical question in the first place, but also handling questions are to be considered.
  • the amount of water per m 2 of the fire retarding structure or body is of importance.
  • Fire retarding bodies according to the invention should contain at least 500 g water/m 2 of the fire retarding body.
  • edges and in particular the corners are critical depending on the relationship between surface and volume of the structure.
  • the surface subjected to fire is large in relation to the volume of the structure material to withstand the fire.
  • there may be difficulties in joining the structure and there are often gaps and cuts at corners and edges.
  • the structure is formed so as to contain fire retarding bodies likewise having edges and corners. The risk that the bodies are formed with gaps and cuts at the edge or at the corners thereby is eliminated. It is in particular advantageous if the water containing containers extend as far as to the edge of the corner.
  • the supporting isolation bodies preferably are formed as two parts which can be associated and joined and at least one part of which is formed with one or more cavities for enclosing the water absorbing material.
  • the two parts are joined to provide a water sealed unit while enclosing the water absorbing isolation material.
  • FIG. 1 shows two layers 1 and 2 of isolation material.
  • the layers are formed with recesses to that the layers when combined provide a hollow space 3.
  • a container 4 is enclosed, which container includes a liquid bearing absorption material enclosed by a casing 5.
  • the two isolation layers 1 and 2 are interconnected at the joint 6, and tabs 7 of the casing extend into said joint 6.
  • the tabs 7 can be the result of the joining of the casing 5.
  • the two isolation body halves 1 and 2 are joined for instance by being glued together or in any other suitable way.
  • Figure 2 correspondingly shows a cross section through a fire retarding body having two isolation layers 9 and 10 formed with cavities so that the two layers when put together leave a space for three containers 11 with a liquid bearing absorption material.
  • Figure 3 shows an alternative fire retarding structure or body which is easy to manufacture and which is composed of a isolation body 18 which by partition walls or edges 19 provide pockets 20 for the container having the water bearing absorption material.
  • the fire retarding body also includes a lid 21 which can be a paranenepipedical disc, adapted to be joined with the edges 19 of the isolation body 18.
  • Figure 4 shows a corresponding form of execution designed as an edge or a corner.
  • An outer isolation body 22 is extending angularly and is formed with ribs 23 providing a number of pockets 24 along the plane sides of the body and an angular pocket 25 at the very corner.
  • Containers with water bearing absorption material are intended to be placed in the pockets 24 and 25.
  • the isolation body 22 is combined with an angular lid 26 which covers the pockets.
  • the fire retarding body is formed with two outer isolation layers 27 and 28 each having a number of spaced cavities or pockets 30. Between the isolation layers 27 and 28 there is an intermediate layer 29 adapted to close the pockets. Liquid bearing containers are adapted to be enclosed in the pockets 30. The pockets of the two layers 27 and 28 are placed so as to overlap each other.
  • Figure 6 shows an angularly formed fire retarding body having an outer, U-shaped isolation body 31 and three inner co-operating isolation bodies 32 and 33 each formed with cavities 34 for non-illustrated liquid bearing containers.
  • Figure 7 finally shows a substantially half eliptical fire retarding body of the same type and combination as described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Cookers (AREA)
EP86850282A 1985-08-29 1986-08-28 Brandhemmende Konstruktion Withdrawn EP0213103A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8504028 1985-08-29
SE8504028A SE8504028D0 (sv) 1985-08-29 1985-08-29 Brandskyddskropp

Publications (1)

Publication Number Publication Date
EP0213103A1 true EP0213103A1 (de) 1987-03-04

Family

ID=20361234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86850282A Withdrawn EP0213103A1 (de) 1985-08-29 1986-08-28 Brandhemmende Konstruktion

Country Status (2)

Country Link
EP (1) EP0213103A1 (de)
SE (1) SE8504028D0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199861A (en) * 1986-11-14 1988-07-20 Magyar Tudomanyos Akademia Process for the inhibition of spread of fire and for protection against effect of fire in burning buildings
WO1990002855A1 (en) * 1987-03-17 1990-03-22 Combal & Co. A/S Fire retardant wall/roofing element
EP1347145A3 (de) * 2002-03-20 2004-01-28 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Dämmstoffplatte zur Wärme-und/oder Schalldämmung sowie Dämmschicht
EP1347144A3 (de) * 2002-03-20 2004-01-28 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Brandschutzelement, insbesondere für Feuerschutztüren
EP1533462B2 (de) † 2003-11-20 2020-05-13 HÖRMANN KG Freisen Feuerabschlusselement und Verfahren zur Herstellung
CN119321215A (zh) * 2024-12-18 2025-01-17 安徽爱乐新材料科技有限公司 一种防火阻燃的秸秆木塑地板及其制备工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792693A (fr) * 1934-07-26 1936-01-07 Fibrociment & Des Revetements élément de construction
FR1388472A (fr) * 1964-04-10 1965-02-05 Perfectionnements aux panneaux de particules
DE2246600A1 (de) * 1972-09-22 1974-04-04 Hardung Hardung Heimo Dr Hohltraeger, vorzugsweise kastentraeger aus stahl oder stahllegierungen fuer die verwendung in hochbauten mit mitteln zur ausdehnung der standzeiten im brandfalle
FR2239566A1 (en) * 1973-08-03 1975-02-28 Openroll Heat retarding fire cut off door - is steel asbestos sandwich contg. bags of low boiling point liquid
DE2706798A1 (de) * 1977-02-17 1978-08-31 Oliver Laing Brandschutzwandungen
DE2706797A1 (de) * 1977-02-17 1978-08-31 Oliver Laing Brandschutzwandungen
WO1982000040A1 (en) * 1980-06-24 1982-01-07 Gilbert A Insulation for protection against fire comprising a granular mass of which the structure changes endothermally when a maximum temperature allowed is reached

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792693A (fr) * 1934-07-26 1936-01-07 Fibrociment & Des Revetements élément de construction
FR1388472A (fr) * 1964-04-10 1965-02-05 Perfectionnements aux panneaux de particules
DE2246600A1 (de) * 1972-09-22 1974-04-04 Hardung Hardung Heimo Dr Hohltraeger, vorzugsweise kastentraeger aus stahl oder stahllegierungen fuer die verwendung in hochbauten mit mitteln zur ausdehnung der standzeiten im brandfalle
FR2239566A1 (en) * 1973-08-03 1975-02-28 Openroll Heat retarding fire cut off door - is steel asbestos sandwich contg. bags of low boiling point liquid
DE2706798A1 (de) * 1977-02-17 1978-08-31 Oliver Laing Brandschutzwandungen
DE2706797A1 (de) * 1977-02-17 1978-08-31 Oliver Laing Brandschutzwandungen
WO1982000040A1 (en) * 1980-06-24 1982-01-07 Gilbert A Insulation for protection against fire comprising a granular mass of which the structure changes endothermally when a maximum temperature allowed is reached

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199861A (en) * 1986-11-14 1988-07-20 Magyar Tudomanyos Akademia Process for the inhibition of spread of fire and for protection against effect of fire in burning buildings
WO1990002855A1 (en) * 1987-03-17 1990-03-22 Combal & Co. A/S Fire retardant wall/roofing element
EP1347145A3 (de) * 2002-03-20 2004-01-28 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Dämmstoffplatte zur Wärme-und/oder Schalldämmung sowie Dämmschicht
EP1347144A3 (de) * 2002-03-20 2004-01-28 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Brandschutzelement, insbesondere für Feuerschutztüren
EP1533462B2 (de) † 2003-11-20 2020-05-13 HÖRMANN KG Freisen Feuerabschlusselement und Verfahren zur Herstellung
CN119321215A (zh) * 2024-12-18 2025-01-17 安徽爱乐新材料科技有限公司 一种防火阻燃的秸秆木塑地板及其制备工艺

Also Published As

Publication number Publication date
SE8504028D0 (sv) 1985-08-29

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Inventor name: LARSSON, MATS

Inventor name: ULFVENGREN, ROLF