CA2005501A1 - Construction board - Google Patents
Construction boardInfo
- Publication number
- CA2005501A1 CA2005501A1 CA002005501A CA2005501A CA2005501A1 CA 2005501 A1 CA2005501 A1 CA 2005501A1 CA 002005501 A CA002005501 A CA 002005501A CA 2005501 A CA2005501 A CA 2005501A CA 2005501 A1 CA2005501 A1 CA 2005501A1
- Authority
- CA
- Canada
- Prior art keywords
- board
- laminate board
- laminate
- rods
- 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.)
- Abandoned
Links
- 238000010276 construction Methods 0.000 title description 9
- 239000011490 mineral wool Substances 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241001527944 Planes Species 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Building Environments (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
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 me-tal. The laminate board consists of adjacently disposed longi tudinally oriented rods (2), whose fibre plane form a right angle to the plane of the laminate board. The rods are shor-ter than the laminate board and jointed to each other. The joints are distributed over the laminate board 80 as to eli-minate their weakening effect on the resistance of the board.
The total joint surfaces of the laminates form, within an in-terval 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 posed than on interposed areas.
Figure 1
The total joint surfaces of the laminates form, within an in-terval 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 posed than on interposed areas.
Figure 1
Description
Construction board The invention relatee 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 rod0, the longitudinal di-rection 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 ueed for inetance in shipbuilding industry as insulating walle of varioue epaces.
The eandwich element of mineral wool has been ussd to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as soof or floor elements, nor as wall elements.
o The idea of rotating cut laminates 90 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 r0eietance propertiee and ie able to transfer shearing forces between ite surface planes.
Finiehed eandwich elements of mineral wool with the fibree oriented perpendicularly to the surface plane of the element would be ueable as eupporting roof, floor and wall elements, thus eimplifying construction operations noticeably.
The object of this invention i~ to provide long ~andwich ele-ments having a core consisting of fire. noise and heat insu-lating laminate boards for roof, floor and wall constructione.
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 with-out intervals ~o as to form a joint, whereby the total joint surfaces of the laminates within one interval of the length a eomwehere along the length of the laminate board form maxi-mally one third of the cross-sectional ~urface 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 8Pan, when the board i8 used as a multi-field-constuction with one or more supporting points between the ends, and n = the numbsr of la-minates 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 til-ted, the joint surface being greater in the latter case than in the former. The total eurface of the joint eurfaces must not exceed one third of the croes-sectional surface. AR 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 eurface 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 90 and reassembled, without handling mineral wool mats and cut laminates of the corresPonding length. By distri-buting the joints between the various aligned rods appro-priately over the surface of the laminate board, a board isobtained, 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 elimina-ted.
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, maxi-mally 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 dis-tance 3a from any end of the board.
The facts mentioned above about the existencs 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 interme-diate supports like at the end supports. The~e critical areas must not contain aa many joints as interposed areas. The con-clusion is valid for elemsnts in a horizontal position as well as for element~ 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 appro-priately divided by 1,9n.
Further, the distance between joints of two adjacent rows of rods preferably equals at least the thicknsss of the rods in the laminate board, i.e. the thickness of the laminate board.
According to a preferred embodiment of the process, the roda 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 appropria-tely performed before the phase displacement of the rod flow.
According to another preferred embodiment of the proces~, the end surfaces of the rods are face milled or prepared 80 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 facee of the rods, parallel to the plane of the laminate board or perpendicular to these, 80 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, pre-ferably 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 slass wool, forming eeeentiallY plane parallel layers consi~ting of vitreous fibres more or less in disorder. By rotating ths rods cut from the mat, rode having vertically oriented fibres are obtained, which is valuable for the resistance requirements of the laminate board when ueed as a construction element. This fibre orientation, al-lowing shearing forces to be transferred between the surface pla-nes of the board, enables the use of very long boards, of the size order of 9-10 m, for constuction purposes.
the joints i8 eliminated. This relation is obtained by ful-filling the conditiona defined in the claim~ with regard to the parametres a, L and n.
The parametres a, L and n are u~ed for determining the exact position for cutting off a long rod into a laminate of the la-minate board and for phase displacing ths long rod with re-gard 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 iB indicated by 1, the roda by 2 and the joint between the rods forming the laminates of the laminate board by 3. In the rods 2 forming the outmost laminate, the vertical orientation of the fibre plan~a is indicated.
It can be noted that the the joints 3 are relatively equally distributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
- A~ deecribed in our parallel application mentioned above, the manufacture of the laminate board is carried out by assemb-ling laterally rods cut from a mineral wool mat and rotated in ordor to form the laminate board. The ass0mbling of the rod~ that have been cut off and rotated can be accomplished in various manners.
In a preferred manner, the rods are aseembled consecutively into a long rod, in which rods 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 aheet and rotated and subsequently phaee diapla-ced axially. The phase dieplaced rods ars subsequently as-ssmbled with end faces against each other with the preceding flow of correspondingly cut and phase di~placed rods into a flow of long rods, in which a length equalling the one of the laminate board i8 cut off. After that, the two surface layers are applied onto the laminate board.
Provided with surface layers, which can be of thin ~heet me-tal, a concrete layer, minerite or similar, the conatruction board of the invention ie usable a~ supporting wall, floor or roof elements. The board has good fire and heat insulating properties owing to its construction, and it is easy to in-atall.
The eandwich element of mineral wool has been ussd to some extent within the shipbuilding industry. So far, however, longitudinal elements have not been available, neither as soof or floor elements, nor as wall elements.
o The idea of rotating cut laminates 90 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 r0eietance propertiee and ie able to transfer shearing forces between ite surface planes.
Finiehed eandwich elements of mineral wool with the fibree oriented perpendicularly to the surface plane of the element would be ueable as eupporting roof, floor and wall elements, thus eimplifying construction operations noticeably.
The object of this invention i~ to provide long ~andwich ele-ments having a core consisting of fire. noise and heat insu-lating laminate boards for roof, floor and wall constructione.
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 with-out intervals ~o as to form a joint, whereby the total joint surfaces of the laminates within one interval of the length a eomwehere along the length of the laminate board form maxi-mally one third of the cross-sectional ~urface 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 8Pan, when the board i8 used as a multi-field-constuction with one or more supporting points between the ends, and n = the numbsr of la-minates 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 til-ted, the joint surface being greater in the latter case than in the former. The total eurface of the joint eurfaces must not exceed one third of the croes-sectional surface. AR 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 eurface 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 90 and reassembled, without handling mineral wool mats and cut laminates of the corresPonding length. By distri-buting the joints between the various aligned rods appro-priately over the surface of the laminate board, a board isobtained, 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 elimina-ted.
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, maxi-mally 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 dis-tance 3a from any end of the board.
The facts mentioned above about the existencs 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 interme-diate supports like at the end supports. The~e critical areas must not contain aa many joints as interposed areas. The con-clusion is valid for elemsnts in a horizontal position as well as for element~ 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 appro-priately divided by 1,9n.
Further, the distance between joints of two adjacent rows of rods preferably equals at least the thicknsss of the rods in the laminate board, i.e. the thickness of the laminate board.
According to a preferred embodiment of the process, the roda 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 appropria-tely performed before the phase displacement of the rod flow.
According to another preferred embodiment of the proces~, the end surfaces of the rods are face milled or prepared 80 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 facee of the rods, parallel to the plane of the laminate board or perpendicular to these, 80 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, pre-ferably 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 slass wool, forming eeeentiallY plane parallel layers consi~ting of vitreous fibres more or less in disorder. By rotating ths rods cut from the mat, rode having vertically oriented fibres are obtained, which is valuable for the resistance requirements of the laminate board when ueed as a construction element. This fibre orientation, al-lowing shearing forces to be transferred between the surface pla-nes of the board, enables the use of very long boards, of the size order of 9-10 m, for constuction purposes.
the joints i8 eliminated. This relation is obtained by ful-filling the conditiona defined in the claim~ with regard to the parametres a, L and n.
The parametres a, L and n are u~ed for determining the exact position for cutting off a long rod into a laminate of the la-minate board and for phase displacing ths long rod with re-gard 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 iB indicated by 1, the roda by 2 and the joint between the rods forming the laminates of the laminate board by 3. In the rods 2 forming the outmost laminate, the vertical orientation of the fibre plan~a is indicated.
It can be noted that the the joints 3 are relatively equally distributed over the laminate board and a comparison between the above parametres shows that all the criteria are being fulfilled.
- A~ deecribed in our parallel application mentioned above, the manufacture of the laminate board is carried out by assemb-ling laterally rods cut from a mineral wool mat and rotated in ordor to form the laminate board. The ass0mbling of the rod~ that have been cut off and rotated can be accomplished in various manners.
In a preferred manner, the rods are aseembled consecutively into a long rod, in which rods 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 aheet and rotated and subsequently phaee diapla-ced axially. The phase dieplaced rods ars subsequently as-ssmbled with end faces against each other with the preceding flow of correspondingly cut and phase di~placed rods into a flow of long rods, in which a length equalling the one of the laminate board i8 cut off. After that, the two surface layers are applied onto the laminate board.
Provided with surface layers, which can be of thin ~heet me-tal, a concrete layer, minerite or similar, the conatruction board of the invention ie usable a~ supporting wall, floor or roof elements. The board has good fire and heat insulating properties owing to its construction, and it is easy to in-atall.
Claims (8)
1. A longitudinal laminate board (1) of binder fixed mineral wool, suitable as a core of a sandwich element having a sur-face 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 total 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 surfa-ce of the board, in which a = L : 1,90n 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 i8 at least equal ts the thiekness of the laminate board <1).
6. A laminate board according to any of claims 1-5, characterized in that the end faces of eaeh joint <3) are pressed against each other forming a border layer, in which fibres from both the rods (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 pa-rallel to the axes of the rods (2).
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 |
|---|---|
| CA2005501A1 true CA2005501A1 (en) | 1990-06-16 |
Family
ID=8527589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002005501A Abandoned CA2005501A1 (en) | 1988-12-16 | 1989-12-14 | 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) |
Families Citing this family (3)
| 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 |
| FI86160C (en) * | 1990-09-04 | 1993-03-31 | Partek Ab | FOERFARANDE FOER TILLVERKNING AV SANDWICHELEMENT BESTAOENDE AV EN KAERNA AV MINERALULLSLAMELLER OCH YTSKIKT EXEMPELVIS AV PLAOT SAMT EN ANORDNING FOER UTFOERANDE AV FOERFARANDET |
| IT1266174B1 (en) * | 1994-07-18 | 1996-12-23 | Isolpack Ceria Spa | INSULATING PANEL FOR BUILDING |
Family Cites Families (2)
| 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 |
-
1988
- 1988-12-16 FI FI885848A patent/FI82518B/en not_active Application Discontinuation
-
1989
- 1989-12-14 CA CA002005501A patent/CA2005501A1/en not_active Abandoned
- 1989-12-15 DE DE68921991T patent/DE68921991T2/en not_active Expired - Fee Related
- 1989-12-15 WO PCT/FI1989/000234 patent/WO1990007039A1/en active IP Right Grant
- 1989-12-15 ES ES90900879T patent/ES2073014T3/en not_active Expired - Lifetime
- 1989-12-15 AT AT90900879T patent/ATE120510T1/en not_active IP Right Cessation
- 1989-12-15 EP EP90900879A patent/EP0448617B1/en not_active Expired - Lifetime
-
1991
- 1991-06-14 DK DK114691A patent/DK167544B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK167544B1 (en) | 1993-11-15 |
| DE68921991T2 (en) | 1995-08-03 |
| ES2073014T3 (en) | 1995-08-01 |
| DK114691D0 (en) | 1991-06-14 |
| DE68921991D1 (en) | 1995-05-04 |
| EP0448617B1 (en) | 1995-03-29 |
| ATE120510T1 (en) | 1995-04-15 |
| WO1990007039A1 (en) | 1990-06-28 |
| FI82518B (en) | 1990-11-30 |
| FI885848A0 (en) | 1988-12-16 |
| DK114691A (en) | 1991-08-14 |
| EP0448617A1 (en) | 1991-10-02 |
| FI885848A (en) | 1990-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |