WO1990007039A1 - Construction board - Google Patents

Construction board Download PDF

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Publication number
WO1990007039A1
WO1990007039A1 PCT/FI1989/000234 FI8900234W WO9007039A1 WO 1990007039 A1 WO1990007039 A1 WO 1990007039A1 FI 8900234 W FI8900234 W FI 8900234W WO 9007039 A1 WO9007039 A1 WO 9007039A1
Authority
WO
WIPO (PCT)
Prior art keywords
board
laminate board
laminate
rods
joint
Prior art date
Application number
PCT/FI1989/000234
Other languages
French (fr)
Inventor
Lars Heselius
Esko Brunila
Original Assignee
Oy Partek 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8527589&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990007039(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Oy Partek Ab filed Critical Oy Partek Ab
Priority to DE68921991T priority Critical patent/DE68921991T2/en
Priority to EP90900879A priority patent/EP0448617B1/en
Publication of WO1990007039A1 publication Critical patent/WO1990007039A1/en
Priority to DK114691A priority patent/DK167544B1/en
Priority to NO912308A priority patent/NO175496C/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal

Definitions

  • the invention relates to a construction board, in. particular to a longitudinal laminate board of binder fixed mineral wool, which is suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods, the longitudinal direction of which coincide with the one of the laminate board and whose fibre plane form a right angle to the plane of the laminate board.
  • a surface layer e.g. of sheet metal
  • Laminate boards of this type are prior known, having been used for instance in shipbuilding industry as insulating walls of various spaces.
  • the sandwich element of mineral wool has been used to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as roof or floor elements, nor as wall elements.
  • the idea of rotating cut laminates 90o and of reassembling them in the turned position, thus obtaining a laminate board having fibres oriented perpendicularly to the plane of the board, is prior known.
  • Such a laminate board has excellent resistance properties and is able to transfer shearing forces between its surface planes.
  • the object of this invention is to provide long sandwich elements having a core consisting of fire, noise and heat insulating laminate boards for roof, floor and wall constructions.
  • the facts mentioned about the joint surface of the laminates are pertinent regardless of the joint surface being vertical to the surface layer of the laminate board or its being tilted, the joint surface being greater in the latter case than in the former.
  • the total surface of the joint surfaces must not exceed one third of the cross-sectional surface.
  • a laminate board with 9 laminates whereby the length a of the board may comprise three vertical joint surfaces, none of which is an inclined joint surface, which would result in a total joint surface that is greater than one third of the total cross-sectional surface.
  • a long construction board can be provided, of the size order of 9-10 m, by means of laminates rotated 90o and reassembled, without handling mineral wool mats and cut laminates of the corresponding length.
  • a board is obtained, which used as a core of a sandwich element has the same resistance properties as a board without joints, i.e. in which the weakening influence of the joints has been eliminated.
  • none of the joints is closer to an end of the laminate board than a.
  • maximally one joint is disposed within the range 2a from any end of the board.
  • maximally two joints are disposed within the distance 3a from any end of the board.
  • the distance a indicating the length of the critical area equals L : 2n. Since the support points, among others, have a certain extension, the length a has to be made somewhat longer, and thus the length L is appropriately divided by 1,9n.
  • the distance between joints of two adjacent rows of rods preferably equals at least the thickness of the rods in the laminate board, i.e. the thickness of the laminate board.
  • the rods are connected with a glue joint by applying glue to the end surfaces before connecting and fixing e.g. by drying subsequent to the forming of the laminate board.
  • the glue application is appropriately performed before the phase displacement of the rod flow.
  • the end surfaces of the rode are face milled or prepared so as to match the surfaces well, before a possible glue application.
  • the future lateral surfaces of the rods are face milled or prepared so that the rods will fit tightly to each other.
  • traces are made in the end faces of the rode, parallel to the plane of the laminate board or perpendicular to these, so as to provide a finger joint between the rods.
  • the rods are pressed together during the connecting moment at a pressure exceeding 100 Pa, preferably 500 Pa.
  • the mineral wool mat used as starting material consists of a bin der fixed mineral wool, which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • a bin der fixed mineral wool which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • the parametres a, L and n are used for determining the exact position for cutting off a long rod into a laminate of the laminate board and for phase displacing the long rod with regard to the preceding long rod in the board.
  • the parametres are used for programming a computer for automatic control of the cutting of the long rods.
  • joints 3 are relatively equally di ⁇ tributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
  • the manufacture of the laminate board is carried out by assembling laterally rods cut from a mineral wool mat and rotated in order to form the laminate board.
  • the assembling of the rods that have been cut off and rotated can be accomplished in various manners.
  • the construction board of the invention is usable as supporting wall, floor or roof elements.
  • the board has good fire and heat insulating properties owing to its construction, and it is easy to install.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Vending Machines For Individual Products (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Nonwoven Fabrics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

The invention relates to a longitudinal laminate board (1) of binder fixed mineral wool, which is suitable as a core of a sandwich element having surface layers of e.g. thin sheet metal. The laminate board consists of adjacently disposed longitudinally oriented rods (2), whose fibre plane forms a right angle to the plane of the laminate board. The rods are shorter than the laminate board and jointed to each other. The joints are distributed over the laminate board so as to eliminate their weakening effect on the resistance of the board. The total joint surfaces of the laminates form, within an interval (a) of the board, in which (a) depends on the length of the board and the number of laminates in the width, maximally one third of the cross-section of the board. As to areas of the length (a) next to the end faces and next to the support lines of multi-field boards, higher requirements of absence of joints are then posed on interposed areas.

Description

Construction board
The invention relates to a construction board, in. particular to a longitudinal laminate board of binder fixed mineral wool, which is suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods, the longitudinal direction of which coincide with the one of the laminate board and whose fibre plane form a right angle to the plane of the laminate board.
Laminate boards of this type are prior known, having been used for instance in shipbuilding industry as insulating walls of various spaces.
The sandwich element of mineral wool has been used to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as roof or floor elements, nor as wall elements. The idea of rotating cut laminates 90º and of reassembling them in the turned position, thus obtaining a laminate board having fibres oriented perpendicularly to the plane of the board, is prior known. Such a laminate board has excellent resistance properties and is able to transfer shearing forces between its surface planes.
Finished sandwich elements of mineral wool with the fibres oriented perpendicularly to the surface plane of the element would be usable as supporting roof, floor and wall elements, thus simplifying construction operations noticeably. The object of this invention is to provide long sandwich elements having a core consisting of fire, noise and heat insulating laminate boards for roof, floor and wall constructions.
According to the invention, this object has been achieved by composing the laminate board of rods that are shorter than the laminate board and by letting aligned rods coincide without intervale so as to form a joint, whereby the total joint surfaces of the laminates within one interval of the length a somwehere along the length of the laminate board form maximally one third of the cross-sectional surface of the board, in which a = L : 1,90n and L = the length of the laminate board, when the board is used as a one-field construction with support points at the ends, and L = the span, when the board is used as a multi-field-constuction with one or more supporting points between the ends, and n = the number of laminates in the width of the laminate board.
The facts mentioned about the joint surface of the laminates are pertinent regardless of the joint surface being vertical to the surface layer of the laminate board or its being tilted, the joint surface being greater in the latter case than in the former. The total surface of the joint surfaces must not exceed one third of the cross-sectional surface. As an example one can mention a laminate board with 9 laminates, whereby the length a of the board may comprise three vertical joint surfaces, none of which is an inclined joint surface, which would result in a total joint surface that is greater than one third of the total cross-sectional surface.
According to the invention, a long construction board can be provided, of the size order of 9-10 m, by means of laminates rotated 90º and reassembled, without handling mineral wool mats and cut laminates of the corresponding length. By distributing the joints between the various aligned rode appro priately over the surface of the laminate board, a board is obtained, which used as a core of a sandwich element has the same resistance properties as a board without joints, i.e. in which the weakening influence of the joints has been eliminated.
According to a preferred embodiment of the laminate board of the invention, none of the joints is closer to an end of the laminate board than a.
According to another preferred embodiment of the board, maximally one joint is disposed within the range 2a from any end of the board. According to a further development of the invention, maximally two joints are disposed within the distance 3a from any end of the board.
The facts mentioned above about the existence of joints at the ends of the laminate board, is also true about the areas on each side of intermediate supports of a multi-field construction. A force concentration namely arises at intermediate supports like at the end supports. These critical areas must not contain as many joints as interposed areas. The conclusion is valid for elements in a horizontal position as well as for elements in a vertical position.
As a general rule, the distance a indicating the length of the critical area, equals L : 2n. Since the support points, among others, have a certain extension, the length a has to be made somewhat longer, and thus the length L is appropriately divided by 1,9n.
Further, the distance between joints of two adjacent rows of rods preferably equals at least the thickness of the rods in the laminate board, i.e. the thickness of the laminate board. According to a preferred embodiment of the process, the rods are connected with a glue joint by applying glue to the end surfaces before connecting and fixing e.g. by drying subsequent to the forming of the laminate board. The glue application is appropriately performed before the phase displacement of the rod flow.
According to another preferred embodiment of the process, the end surfaces of the rode are face milled or prepared so as to match the surfaces well, before a possible glue application.
According to another preferred embodiment, the future lateral surfaces of the rods are face milled or prepared so that the rods will fit tightly to each other.
According to another embodiment, traces are made in the end faces of the rode, parallel to the plane of the laminate board or perpendicular to these, so as to provide a finger joint between the rods.
According to a further embodiment, the rods are pressed together during the connecting moment at a pressure exceeding 100 Pa, preferably 500 Pa.
The mineral wool mat used as starting material consists of a bin der fixed mineral wool, which may be a rock wool or a glass wool forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder. By rotating the rods cut from the mat, rods having vertically oriented fibres are obtained, which is valuable for the resistance requirements of the laminate board when used as a construction element. This fibre orientation, allowing shearing forces to be transferred between the surface planes of the board, enables the use of very long boards, of the size order of 9-10 m, for constuction purposes. the joints is eliminated. This relation is obtained by fulfilling the conditions defined in the claims with regard to the parametres a, L and n.
The parametres a, L and n are used for determining the exact position for cutting off a long rod into a laminate of the laminate board and for phase displacing the long rod with regard to the preceding long rod in the board. The parametres are used for programming a computer for automatic control of the cutting of the long rods.
A preferred embodiment of the laminate board according to the invention is described below with reference to the enclosed figure.
The laminate board iβ indicated by 1, the rode by 2 and the joint between the rods forming the laminates of the laminate board by 3. In the rode 2 forming the outmost laminate, the vertical orientation of the fibre planes is indicated.
It can be noted that the the joints 3 are relatively equally diβtributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
As described in our parallel application mentioned above, the manufacture of the laminate board is carried out by assembling laterally rods cut from a mineral wool mat and rotated in order to form the laminate board. The assembling of the rods that have been cut off and rotated can be accomplished in various manners.
In a preferred manner, the rode are assembled consecutively into a long rod, in which rode having the desired length <=the length of the laminate board) are cut and assembled into a laminate board.
In another preferred manner, several rods are cut from the mineral wool sheet and rotated and subsequently phase displaced axially. The phase displaced rods are subsequently assembled with end faces against each other with the preceding flow of correspondingly cut and phase displaced rode into a flow of long rods, in which a length equalling the one of the laminate board is cut off. After that, the two surface layers are applied onto the laminate board.
Provided with surface layers, which can be of thin sheet metal, a concrete layer, minerite or similar, the construction board of the invention is usable as supporting wall, floor or roof elements. The board has good fire and heat insulating properties owing to its construction, and it is easy to install.

Claims

Claims
1. A longitudinal laminate board (1) of binder fixed mineral wool, suitable as a core of a sandwich element having a surface layer, e.g. of sheet metal, on each side, consisting of adjacently disposed rods (2) the longitudinal direction of which coincide with the one of the laminate board and in which the fibre plane forms a right angle to the plane of the laminate board, characterized in that the laminate board (1) is composed of rods (2) that are shorter than the laminate board and in that the aligned rods are in contact with each other without intervals, thus forming a joint (3), whereby the toal joint surfaces of the laminates within one interval of the length a somewhere along the length of the laminate board form maximally one third of the cross-sectional surface of the board, in which a = L : l,90n and L = the length of the laminate board, when the board is being used as a one-field board, and L = the span, when the board is being used as a multi-field board, and n = the number of laminates in the width of the laminate board.
2. A laminate board according to claim 1, characterized in that no joint (3) is disposed closer to an end of the laminate board (1) or a support line of a multi-field board than a.
3. A laminate board according to claim 1 or 2, characterized in that maximally one joint (3) is diposed within the distance 2a from the end of the laminate board (1) or a support line of a multi-field board.
4. A laminate board according to any of claims 1-3,
characterized in that maximally two joints (3) are within the distance 3a from the end of the laminate board (1) or a support line of a multi-field board.
5. A laminate board according to any of claims 1-4,
characterized in that the distance between the joints (3) of two adjacent longitudinal rods is at least equal to the thickness of the laminate board (1).
6. A laminate board according to any of claims 1-5,
characterized in that the end faces of each joint (3) are pressed against each other forming a border layer, in which fibres from both the rode (2) are included.
7. A laminate board according to any of claims 1-6, characterized in that the end faces are glued against each other.
8. A laminate board according to any of claims 1-7, characterized in that the fibres planes are essentially parallel to the axes of the rode (2).
PCT/FI1989/000234 1988-12-16 1989-12-15 Construction board WO1990007039A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE68921991T DE68921991T2 (en) 1988-12-16 1989-12-15 BAUPANEEL.
EP90900879A EP0448617B1 (en) 1988-12-16 1989-12-15 Construction board
DK114691A DK167544B1 (en) 1988-12-16 1991-06-14 Oblong segmental panel of binder-bound mineral wool
NO912308A NO175496C (en) 1988-12-16 1991-06-14 Sandwich element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI885848A FI82518B (en) 1988-12-16 1988-12-16 LAONGSTRAECKT LAMELLSKIVA AV MINERALULL, LAEMPLIG SOM KAERNA I ETT SANDWICHELEMENT.
FI885848 1988-12-16

Publications (1)

Publication Number Publication Date
WO1990007039A1 true WO1990007039A1 (en) 1990-06-28

Family

ID=8527589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1989/000234 WO1990007039A1 (en) 1988-12-16 1989-12-15 Construction board

Country Status (8)

Country Link
EP (1) EP0448617B1 (en)
AT (1) ATE120510T1 (en)
CA (1) CA2005501A1 (en)
DE (1) DE68921991T2 (en)
DK (1) DK167544B1 (en)
ES (1) ES2073014T3 (en)
FI (1) FI82518B (en)
WO (1) WO1990007039A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247643A (en) * 1990-09-04 1992-03-11 Partek Ab Manufacturing sandwich panels
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
EP0693599A1 (en) * 1994-07-18 1996-01-24 ISOLPACK CERIA S.p.A Insulating panel for buildings

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE368949B (en) * 1972-02-17 1974-07-29 Rockwool Ab
SE385389B (en) * 1974-06-24 1976-06-28 Rockwool Ab COMPOSED OF PRECIOUS RULES AND BETWEEN INSERTED, HEAT INSULATION PANELS EXISTING TRANSACTION CONSTRUCTION

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE368949B (en) * 1972-02-17 1974-07-29 Rockwool Ab
SE385389B (en) * 1974-06-24 1976-06-28 Rockwool Ab COMPOSED OF PRECIOUS RULES AND BETWEEN INSERTED, HEAT INSULATION PANELS EXISTING TRANSACTION CONSTRUCTION

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
GB2247643A (en) * 1990-09-04 1992-03-11 Partek Ab Manufacturing sandwich panels
EP0693599A1 (en) * 1994-07-18 1996-01-24 ISOLPACK CERIA S.p.A Insulating panel for buildings

Also Published As

Publication number Publication date
FI885848A (en) 1990-06-17
ATE120510T1 (en) 1995-04-15
DK114691A (en) 1991-08-14
DK167544B1 (en) 1993-11-15
FI885848A0 (en) 1988-12-16
DE68921991T2 (en) 1995-08-03
EP0448617A1 (en) 1991-10-02
CA2005501A1 (en) 1990-06-16
DE68921991D1 (en) 1995-05-04
FI82518B (en) 1990-11-30
EP0448617B1 (en) 1995-03-29
ES2073014T3 (en) 1995-08-01
DK114691D0 (en) 1991-06-14

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