SE1300583A1 - Building elements with first and second cover layers and intermediate core - Google Patents

Building elements with first and second cover layers and intermediate core

Info

Publication number
SE1300583A1
SE1300583A1 SE1300583A SE1300583A SE1300583A1 SE 1300583 A1 SE1300583 A1 SE 1300583A1 SE 1300583 A SE1300583 A SE 1300583A SE 1300583 A SE1300583 A SE 1300583A SE 1300583 A1 SE1300583 A1 SE 1300583A1
Authority
SE
Sweden
Prior art keywords
building element
core material
layers
roof
layer
Prior art date
Application number
SE1300583A
Other languages
Swedish (sv)
Other versions
SE537477C2 (en
Inventor
Jonny Halonen
Lars Ohlsson
Original Assignee
Panwich 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 Panwich Ab filed Critical Panwich Ab
Priority to SE1300583A priority Critical patent/SE537477C2/en
Priority to PCT/SE2014/000109 priority patent/WO2015034409A1/en
Priority to NO14841574A priority patent/NO3042003T3/no
Priority to DK14841574.8T priority patent/DK3042003T3/en
Priority to EP14841574.8A priority patent/EP3042003B1/en
Publication of SE1300583A1 publication Critical patent/SE1300583A1/en
Publication of SE537477C2 publication Critical patent/SE537477C2/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88Insulating elements for both heat and sound
    • E04B1/90Insulating elements for both heat and sound slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/94Protection against other undesired influences or dangers against fire
    • E04B1/941Building elements specially adapted therefor
    • E04B1/942Building elements specially adapted therefor slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building 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
    • E04C2/284Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building 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
    • E04C2/284Building 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
    • E04C2/292Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building 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
    • E04C2/284Building 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
    • E04C2/296Building 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 non-metallic or unspecified sheet-material

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)

Abstract

SAMMANDRAG Byggelement med tackskikt (11, 19) forbundna med motstSende sidor av en karna av ett forsta (12, 13, 14, 15, 16) och andra (17, 18) karnmaterial. Tack- skikten (11; 19) innefattar minst ett fOrstyvningsskikt med Stminstone 5 mm tjocklek och en elasticitetsmodul h6gre an 3000 MPa. Det fOrsta karnmaterialet (12, 13, 14, 15, 16) har hogre elasticitetsmodul an det andra karnmaterialet (17, 18), vars elasticitetsmodul ar lagre an 10 MPa. Kantstycken (12, 13, 15, 16) av det fOrsta kammaterialet omger mellanliggande stycken (17, 18) av det andra karnmaterialet som tacker kminstone 60 % av arean innanfOr kant- styckena (12, 13, 15, 16). Tackskikten (11, 19) är forbundna med kantstyckena (12, 13, 15, 16) med hjalp av ett brandhardigt Jim som tacker Stminstone 5 av tackskiktens (11, 19) area for en skjuvfast forbindning dar tackskikten (11, 19) ligger minst 70 mm frAn varandra med det fOrsta karnmaterialet (12, 13, 15, 16) som distansgivare. SUMMARY Building elements with roof layers (11, 19) connected to opposite sides of a core of a first (12, 13, 14, 15, 16) and second (17, 18) core material. Thanks- the layers (11; 19) comprise at least one stiffening layer with at least 5 mm thickness and a modulus of elasticity higher than 3000 MPa. The first core material (12, 13, 14, 15, 16) has a higher modulus of elasticity than the second core material (17, 18), the modulus of elasticity of which is less than 10 MPa. Edge pieces (12, 13, 15, 16) of the first comb material surround intermediate pieces (17, 18) of the other core material which covers at least 60% of the area within the edge paragraphs (12, 13, 15, 16). The roof layers (11, 19) are connected to the edge pieces (12, 13, 15, 16) by means of a fire-resistant Jim which covers at least 5 of the area of the roof layers (11, 19) for a shear-resistant connection where the roof layers (11, 19) are at least 70 mm apart with the first core material (12, 13, 15, 16) as distance sensors.

Description

Byggelement med ftirsta och andra tackskikt och mellanliggande karna TEKNISKT OMRADE Foreliggande uppfinning avser ett byggelement, vilket innefattar Atminstone ett fOrsta tackskikt och ett andra tackskikt som är fOrbundna med motstaende sidor av en mellanliggande karna bestaende av Stminstone ett farsta karnmaterial och ett andra karnmaterial. Byggelementet kan anvandas i barande bjalklag eller vaggar vid husbyggnation, faretradesvis vid byggnation av mindre hus. Building elements with first and second roof layers and intermediate vessels TECHNICAL FIELD The present invention relates to a building element, which comprises at least one first roof layer and a second roof layer connected to opposite sides of an intermediate core consisting of at least one first core material and a second core material. The building element can be used in load-bearing joists or cradles in house construction, especially in the construction of smaller houses.

UPPFINNINGENS BAKGRUND Olika typer av byggelement med s kallad sandwichkonstruktion for anvandning i vagg och takkonstruktioner är kanda sedan tidigare. Ett exempel är sandwich-element som best& av en karna av polystyren- eller polyuretanskum som ge- nom limning fOrsetts med tackskikt av metallplat pa den ena eller bagge sidor- na. En nackdel med denna typ av byggelement ar att de snabbt kan fOrlora sin lastbarande formaga om de utsatts for hoga temperaturer i handelse av brand, eftersom platarna borjar bukta sig och karnmaterialet mjuknar eller till och med &erg& i gasform s alt sandwichstrukturen kollapsar. BACKGROUND OF THE INVENTION Different types of building elements with so-called sandwich construction for use in cradles and roof constructions are already known. An example is sandwich elements which consist of a core of polystyrene or polyurethane foam which is by gluing Provided with roofing layer of sheet metal on one or the back side na. A disadvantage of this type of building element is that they can quickly lose their load-bearing form if they are exposed to high temperatures in the event of a fire, as the plates begin to bend and the core material softens or even becomes gaseous as the sandwich structure collapses.

I SE 450 020 beskrivs ett byggelement som är avsett all lOsa det ovannamnda problemet med clang brandhardighet. Data byggelement innefattar en skivformig isoleringskarna av polystyren eller liknande material, samt tvA tunna stS1- plAtar som tacker isolerskivans sidoytor. En ytterligare skiva, i form av en &VI- ber- eller gipsskiva eller liknande, är anordnad mellan atminstone den ena pla- ten och isolerskivan. Den ytterligare skivan är avsedd alt uppratthalla elementets lastbarande formaga under en viss tid da elementet utsatts for yttre varme och all forhindra bildande av gasfas av karnmaterialet genom aft isolera skivan fran den yttre varmetillfOrseln och uppta latent varme fran denna. Denna effekt uppas genom aft skivan delvis forkolnar nar en trafiberskiva anvands och ge- nom forangning av kristallvatten nar en gipsskiva anvands. SE 450 020 describes a building element which is intended for all of the above-mentioned problem of clang fire resistance. Data building elements include a sheet-shaped insulating core of polystyrene or similar material, as well as two thin STS1 plates that thank the side surfaces of the insulating board. An additional disc, in the form of a & VI- plasterboard or plasterboard or the like, is arranged between at least one of the and the insulating board. The additional disc is intended to maintain the load-bearing shape of the element for a certain time when the element is exposed to external heat and to prevent the formation of a gas phase of the core material by isolating the disc from the external heat supply and absorbing latent heat therefrom. This effect raised through the aft disc partially charred when a carrier disc is used and by evaporation of crystal water when a plasterboard is used.

I EP 1 253 257 beskrivs ett fOrfarande for tillverkning av ett ytelement, for en vagg eller ett golv eller ett tak, som har en annan typ av sandwichkonstruktion. EP 1 253 257 describes a method for manufacturing a surface element, for a cradle or a floor or a roof, which has a different type of sandwich construction.

Det beskrivna fOrfarandet uppges Ora tillverkning av ytelement i olika storle- kar enklare och billigare och innefattar aft ett flertal sandwichsskivor framstalls och varvid for framstallning av en sandwichskiva minst en isoleringsskiva 'Afars en undre tackskiva och varvid en Ovre tackskiva pafors isoleringsskivan, varvid de separata sandwichskivoma forbinds med varandra Over sina sidokanter till en sandwichbana, varefter sandwichbanan sOnderskars eller sOndersSgas till de separata ytelementen. Tackskivoma i ytelementen som tillverkas enligt EP 1 253 257 kan valjas frAn gruppen gipsskivor, traspAnskivor, vermikulitskivor, medan skivor av skummad plast, foretradesvis skummad polystyren, anvands som isoleringsskivor. Enligt EP 1 253 257 kan tackskivorna fOrbindas med isoleringsskivorna med hjalp av ett lim som kan vara ett polyuretanlim och isoleringsskivorna kan vara skilda frSn varandra med hjalp av forstarkningsribbor som fOretradesvis beseir av Forutom det ovannamnda problemet med dSlig brandhardighet har mAnga av de tidigare kanda byggelementen med sandwichkonstruktion nackdelen att de inte har tillracklig hSlIfasthet och lastbarande fOrmSga for att kunna anvandas i barande bjalklag eller vaggar utan all anvanda forstarkningsribbor eller mellan- liggande reglar av tra, barverk av metal!, eller andra ytterligare stOdkonstruk- tioner. Anvandningen av sSdana stodkonstruktioner av tra eller metall Okar risken for fortplantning av stomljud i den fardiga byggnaden. The described method is stated in the manufacture of surface elements in different sizes. simpler and cheaper and comprises a plurality of sandwich sheets are produced and wherein for the production of a sandwich board at least one insulating board is formed, a lower roofing board and an upper roofing board is made of the insulating board, wherein the separate sandwich discs are connected to each other over their side edges to a sandwich web, after which the sandwich web is sOnderskars or sOndersSgas to the separate surface elements. The roofing sheets in the surface elements manufactured according to EP 1 253 257 can be selected from the group of gypsum boards, trapezoidal boards, vermiculite boards, while sheets of foamed plastic, preferably foamed polystyrene, are used as insulation boards. According to EP 1 253 257 the roofing sheets can be connected to the insulating boards with the aid of an adhesive which can be a polyurethane adhesive and the insulating boards can be separated from each other by means of reinforcing ribs which are preferably In addition to the above-mentioned problem of such fire resistance, many of the previously known building elements with sandwich construction have the disadvantage that they do not have sufficient strength and load-bearing shape to be used in load-bearing joists or cradles without all the used reinforcing ribs or intermediate. horizontal joists of tra, barbar of metal !, or other additional support structures tioner. The use of such supporting structures of wood or metal increases the risk of reproduction of frame noise in the finished building.

SAMMANFATINING AV UPPFINNINGEN Ett fOrsta syfte med foreliggande uppflnning är darfor att tillhandahAlla ett byggelement med en forbattrad sandwichkonstruktion, som är barande och inte endast sjalvbarande och som ger byggelementet tillracklig hSlIfasthet och lastbarande fOrmAga for att kunna anvandas i bade barande bjalklag och barande vaggar utan agon ytterligare stodkonstruktion, samtidigt som byggelementet minimerar risken for fortplantning av stomljud och uppfyller de hOga krav pA ljudisolerande fOrmSga och aven varmeisolerande fOrmSga som stalls vid byggnation av modema hus. SUMMARY OF THE INVENTION A first object of the present invention is therefore to provide ALL one building element with an improved sandwich construction, which is load-bearing and not only self-supporting and which gives the building element sufficient strength and load-bearing capacity to be used in both load-bearing beams and load-bearing cradles without agon additional support construction, at the same time as the construction element minimizes the risk of reproduction of body noise and meets the high requirements pA sound-insulating design and also heat-insulating design that is installed during the construction of modern houses.

Della fOrsta syfte uppas med ett byggelement enligt patentkrav 1, innefattan- de Stminstone ett forsta tackskikt och ett andra tackskikt som är forbundna med motstgende sidor av en mellanliggande karna bestSende av Stminstone ett fOrsta kammaterial och ett andra karnmaterial, varvid det forsta och/eller det andra tackskiktet innefattar ett eller flera forstyvningsskikt med en tjocklek som ärAtminstone 5 mm och en elasticitetsmodul som ãr hogre an 3000 MPa och hOgre an elasticitetsmodulema hos namnda kammaterial, varvid det forsta karnmaterialet har en hogre elasticitetsmodul an elasticitetsmodulen hos det andra karnmaterialet, vilket har en elasticitetsmodul som är lagre an 10 MPa, varvid den mellanliggande karnan ar uppbyggd av ett eller flera kantstycken av det forsta karnmaterialet som omger ett eller flera mellanliggande stycken av det andra karnmaterialet, varvid namnda ett eller flera mellanliggande stycken av det andra karnmaterialet tacker Stminstone 60 % av den area som begransas av namnda ett eller flera kantstycken av det forsta karnmaterialet, varvid det forsta respektive det andra thckskilctet uppvisar yttre kantomr8den som är skjuvfast farbundna med motst8ende sidor av namnda ett eller flera kantstycken av det farsta karnmaterialet med hjalp av ett brandhardigt lim, samt varvid namnda brandhardiga lirn tacker Stminstone 5 % av arean hos respektive tackskikts inStvanda yta far att tillhandahSlla en skjuvfast forbindning clar det farsta och andra thckskiktet är fixerade p ett avst8nd frk varandra som är Atmin- stone 70 mm via det mellanliggande forsta karnmaterialet som fungerar som distansgivare. The first object is achieved with a building element according to claim 1, comprising de At least one first layer of thanks and a second layer of thanks connected with opposite sides of an intermediate core consisting of at least a first core material and a second core material, the first and / or the second roof layer comprising one or more stiffening layers with a thickness of at least 5 mm and a modulus of elasticity greater than 3000 MPa and higher than the modulus of elasticity of said comb material, the former the core material has a higher modulus of elasticity than the modulus of elasticity of the second core material, which has a modulus of elasticity lower than 10 MPa, the intermediate core being built up of one or more edge pieces of the first core material surrounding one or more intermediate pieces of the second core material, said one or more intermediate pieces of the second core material representing at least 60% of the area bounded by said one or more edge pieces of the first core material, wherein the first and second thickness shields, respectively, have outer edge areas which are shear-resistant bonded with opposite sides of said one or more edge pieces of the first core material with the aid of a refractory adhesive, and wherein said refractory liner covers at least 5% of the area of the inner surface of each tack layer to provide a shear-resistant connection in the first and the second cover layer are fixed at a distance from each other which is Atmin- stone 70 mm via the intermediate first core material which acts as a spacer.

Eli andra syfte med fareliggande uppfinning är att tillhandahAlla ett byggele- ment som minskar risken for att en eventuell brand fAr faste i byggelementet och sprider sig mellan olika utrymmen i en byggnad. Another object of the present invention is to provide which reduces the risk of a possible fire getting stuck in the building element and spreads between different spaces in a building.

Delia andra syfte uppas med ett byggelement enligt patentkrav 3, dar Stminstone den i byggelementet ut8tvAnda sidan av det ena eller bScla tackskikten uppvisar ett brandhardigt skikt som har battre brandhardighet an avriga mate- rialskikt i namnda tackskikt och/eller battre brandhardighet an Stminstone det ena av namnda karnmaterial. The second object is achieved with a building element according to claim 3, wherein at least the side of one or more of the roof layers in the building element is removed. exhibits a fire-resistant layer which has better fire-resistance than other materials. material layer in said roofing layer and / or better fire hardness than at least one of said core materials.

Eli tredje syfte med foreliggande uppfinning är att tillhandahAlla ett byggele- ment som minskar risken for att elementets sandwichkonstruktion kollapsar p8 grund av att lastbarande material i karnan mjuknar, &erg& i gasform, eller anthnds vid en brand. The third object of the present invention is to provide which reduces the risk of the element's sandwich construction collapsing p8 due to load-bearing material in the karnan softening, & erg & in gaseous form, or anthnds in the event of a fire.

Delia tredje syfte uppn8s med ett byggelement enligt patentkrav 9, dar det forsta karnmaterialet är ett skummaterial med hog brandhardighet. Delia third object is achieved with a building element according to claim 9, where it The first core material is a foam material with high fire hardness.

Eli fjarde syfte med foreliggande uppfinning är att tillhandahSlla ett byggelement som minskar risken far at ljud- och varmeisolerande material i Ithrnan antands vid en brand. The fourth object of the present invention is to provide a building element which reduces the risk of sound and heat insulating materials in the fire being ignited in the event of a fire.

Data fjarde syfte uppn8s med ett byggelement enligt patentkrav 12, dar det andra karnmaterialet bestAr av ett eller flera brandhardiga eller brandhamman- de material valda fran gruppen bestaende av glasull, stenull, eller cellulosaull behandlad med flamhammande medel. The fourth object is achieved with a building element according to claim 12, wherein the second core material consists of one or more fire-resistant or fire-hammering materials. the materials selected from the group consisting of glass wool, rock wool, or cellulose wool treated with flame retardants.

Ett femte syfte med fOreliggande uppfinning Sr aft tillhandahalla ett byggele- ment vars sandwichkonstruktion kan bibehalla sin lastbarande formaga tillrack- ligt lange vid en brand. A fifth object of the present invention is to provide a building material. whose sandwich construction can maintain its load-bearing shape long at a fire.

Detta femte syfte uppnas med ett byggelement enligt patentkrav 13, dar brandhardiga limmet som tillhandahaller den skjuvfasta fOrbindningen mellan tackskikten och karnmaterialet och/eller mellan skivor som ingar i tackskikten är ett brandhardigt lim med en skjuvhallfasthet som är atminstone 5 MPa vid 110 °C. This fifth object is achieved with a building element according to claim 13, wherein the refractory adhesive which provides the shear-resistant connection between the thank-you layers and the core material and / or between discs that enter the thank-you layers is a refractory adhesive with a shear strength of at least 5 MPa at 110 ° C.

Ett sjatte syfte med foreliggande uppfinning är aft tillhandahalla ett byggele- ment med en sandwichkonstruktion som kan tillverkas genom en enkel tillverk- ningsprocess av lattillgangliga material och till en forhallandevis lag total kostnad, men som arida har tillracklig hallfasthet och lastbarande formaga for aft anvandas i barande bjalklag eller vaggar och dar tillhandahalla mycket god ljudisoleringsformaga och liten risk for fortplantning av stomljud, hog varmeiso- leringsfOrmaga och god brandhardighet. A sixth object of the present invention is to provide a building material. with a sandwich construction that can be manufactured by a simple process of easily accessible materials and at a relatively low total cost, but as arida has sufficient hall strength and load-bearing form for aft is used in load-bearing beams or cradles and there provide very good sound insulation form and little risk of reproduction of body noise, high thermal insulation. learning ability and good fire resistance.

Detta sjatte syfte uppas med ett byggelement enligt patentkrav 20, dar bade det forsta och andra tackskiktet best& av dubbla fiberarmerade gipsskivor, dar det fOrsta karnmaterialet tillhandahalls i form av ribbor av ett PET-skum, dar det andra karnmaterialet tillhandahalls i form av mineralultsskivor och dar de fiberarmerade gipsskivorna och ribborna av PET-skum är hoplimmade med ett brandhardigt polyuretanlim som innehaller minst 30 vikt-0/0 krita. This sixth object is achieved with a building element according to claim 20, wherein both the first and second roof layers consist of double fiber-reinforced gypsum boards, where the first core material is provided in the form of ribs of a PET foam, where the other core material is provided in the form of mineral wool boards and there they the fiber-reinforced gypsum boards and ribs of PET foam are glued together with a fireproof polyurethane glue that contains at least 30 weight-0/0 chalk.

Ytterligare syften med uppfinningen och de sardrag som gar det mojligt aft uppna dessa syften kommer aft framga ur den efterfoljande beskrivningen. Additional objects of the invention and the features which make it possible Achieving these purposes will often be apparent from the following description.

KORTFATTAD BESKRIVNING AV RITNINGARNA Uppfinningen kommer i det foljande aft beskrivas genom ett antal olika utfiiringsformer med hanvisning till de bilagda ritningarna, varvid figur 1 är en schematisk perspektivvy av ett byggelement enligt en fore- dragen utforingsform av uppfinningen, dar olika stycken av karnmaterial har indikerats med streckade linjer, figur 2 är en schematisk perspektivvy av de forsta respektive andra tackskikt och de stycken av forsta respektive andra karnnnaterial som ska limmas ihop fOr aft framstalla byggelementet enligt utforingsformen visad i figur 1, figur 3 Sr en schematisk planvy som illustrerar placeringen av de forsta respektive andra karnmaterialen inuti karnan hos byggelementet enligt utfo- ringsformen visad i figur 1, sannt figur 4 Sr en beskuren snittvy, sedd i byggelementets langdriktning, av byggelementet enligt utforingsformen visad i figur 1, dar det framg8r aft tackskikten utanp8 den mellanliggande karnan best& av tv8 hoplimmade forstyv- ningsskikt av skivmaterial. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described by way of a number of different embodiments with reference to the accompanying drawings, in which Figure 1 is a schematic perspective view of a building element according to a drawn embodiment of the invention, where different pieces of core material have been indicated by dashed lines, Figure 2 is a schematic perspective view of the first and second roof layers and the pieces of first and second core material, respectively, which are to be glued together to produce the building element according to the embodiment shown in Figure 1, figure 3 is a schematic plan view illustrating the location of the first ones respectively other core materials inside the core of the building element according to the embodiment ring shape shown in Figure 1, true Figure 4 is a cropped sectional view, seen in the longitudinal direction of the building element, of the building element according to the embodiment shown in Figure 1, showing the roof layers outside the intermediate core consisting of two glued stiffeners. sheet material.

BESKRIVNING AV UTFORINGSFORMER AV UPPFINNINGEN I det fOljande kommer ett antal utfOringsformer av ett byggelement enligt uppfinningen aft beskrivas mera detaljerat med hanvisning till de bilagda figurema 1-4. DESCRIPTION OF EMBODIMENTS OF THE INVENTION In the following, a number of embodiments of a building element according to the invention will be described in more detail with reference to the accompanying figures. 1-4.

Figur 1 Sr en schematisk perspektivvy av ett byggelement enligt en fOredragen utfOringsform av uppfinningen, figur 2 Jr en schematisk perspektivvy av tackskikt och stycken av forsta respektive andra karnmaterial som ska limmas ihop fOr aft forma byggelementet, figur 3 Sr en schematisk planvy som illustrerar placeringen av kammaterialen inuti karnan, samt figur 4 Sr en beskuren snittvy, sedd i byggelementets langdriktning, dar det framg8r aft tackskikten utanp8 !Oman best& av tv8 hoplimmade forstyvningsskikt av skivmaterial i den visade utforingsformen. Figure 1 is a schematic perspective view of a building element according to a preferred embodiment of the invention, Figure 2 is a schematic perspective view of roof layers and pieces of first and second core material to be glued together, respectively. to form the building element, figure 3 is a schematic plan view that illustrates the location of the comb materials inside the core, and figure 4 is a cropped sectional view, seen in the longitudinal direction of the building element, where it appears from the roof layers outside! Oman consisted of two glued stiffening layers of sheet material in the embodiment shown.

SSsom framg8r av figurerna innefattar byggelementet 10 enligt uppfinningen Atminstone ett forsta tackskikt 11 och ett andra tackskikt 19 som Sr forbundna med motstgende sidor av en mellanliggande karna bestgende av Stminstone ett forsta karnmaterial 12, 13, 14, 15, 16 och ett andra kammaterial 17, 18. As can be seen from the figures, the building element 10 according to the invention comprises at least a first roof layer 11 and a second roof layer 19 which are connected to opposite sides of an intermediate core consisting of at least a first core material 12, 13, 14, 15, 16 and a second cam material 17, 18.

Det forsta 11 och/eller det andra ffickskiktet 19 innefattar, Asom illustreras i figur 4, ett eller flera forstyvningsskikt 11', 11"; 19'; 19" med en tjocklek som Sr Atminstone 5 mm och en elasticitetsmodul som Sr hogre an 3000 MPa och hogre an elasticitetsmodulerna hos karnmaterialen 12, 13, 14, 15, 16; 17, 18, Det forsta karnmaterialet 12, 13, 14, 15, 16 har en hOgre elasticitetsmodul an elasticitetsmodulen hos det andra karnmaterialet 17, 18, vilket har en elasticitetsmodul som är lagre an 10 MPa. Det forsta karnmaterialet har s8ledes en elasticitetsmodul som ligger mellan elasticitetsmodulema hos det andra karnmaterialet respektive hos forstyvningsskikten och är avsett att samverka med forstyvningsskikten fOr att ge byggelementet h6g skjuvhgllfasthet och lastbarande formgga, medan det andra karnmaterialet har en mycket lgg elastici- tetsmodul och Sr avsett att ge byggelementet god ljudisolerings- och varmeiso- leringsfOrmgga. The first 11 and / or the second pocket layer 19 comprises, As illustrated in Figure 4, one or more stiffening layers 11 ', 11 "; 19'; 19" with a thickness as Sr At least 5 mm and a modulus of elasticity as Sr higher than 3000 MPa and higher than the modulus of elasticity of the core materials 12, 13, 14, 15, 16; 17, 18, The first core material 12, 13, 14, 15, 16 has a higher modulus of elasticity than the modulus of elasticity of the second core material 17, 18, which has a modulus of elasticity lower than 10 MPa. The first core material thus has one modulus of elasticity which lies between the modulus of elasticity of the second core material and of the stiffening layers, respectively, and is intended to co-operate with the stiffening layers in order to give the building element high shear strength and load-bearing shape, while the other core material has a very low elasticity. module and Sr intended to give the building element good sound insulation and thermal insulation. leringsfOrmgga.

Sgsom framggr av flgur 2 är den mellanliggande karnan uppbyggd av ett eller flera kantstycken 12, 13, 15, 16 av (Jet fOrsta karnmaterialet som omger ett eller flera mellanliggande stycken 17, 18 av det andra kammaterialet, varvid namnda ett eller flera mellanliggande styckena 17, 18 av det andra karnmaterialet tacker Stminstone 60 Wo av den area som begransas av namnda ett eller flera kantstycken 12, 13, 15, 16 av det forsta karnmaterialet. Det har visat sig att en sgdan utformning av karnan ger byggelementet god ljudisoleringsformg- ga och minimal fortplantning av stomljud. As can be seen from Figure 2, the intermediate core is made up of one or more edge pieces 12, 13, 15, 16 of (Jet the first core material surrounding a or several intermediate pieces 17, 18 of the second comb material, wherein said one or more intermediate pieces 17, 18 of the second core material thank at least 60 Wo of the area bounded by said one or more edge pieces 12, 13, 15, 16 of the first core material. It has been found that such a design of the core gives the building element a good sound insulation design. ga and minimal reproduction of body sounds.

Sgsom ocksg framggr av Nur 2 uppvisar det fOrsta 11 respektive det andra tackskiktet 19 yttre kantomrgden 20, 21, 22, 23; 24, 25, 26, 27 som är skjuvfast fOrbundna med motstgende sidor av namnda ett eller flera kantstycken 12, 13, 15, 16 av det forsta karnmaterialet med hjalp av ett brandhardigt lim (ej visat i flgurema). Det brandhardiga limmet tacker gtminstone 5 % av arean hos respektive tackskikts (11, 19) ingtvanda yta 20, 21, 22, 23; 24, 25, 26, 27 for att tillhandahglla en skjuvfast f6rbindning dar det forsta 11 och andra tackskiktet 19 är fixerade pg ett avstgnd frgn varandra som är gtminstone 70 mm via det mellanliggande forsta karnmaterialet 12, 13, 15, 16 som fungerar som di- stansgivare. Det fOrsta karnmaterialet behover naturligtvis tacka mera an namnda Det har visat sig att det kravs aft det brandhardiga limmet tacker gtminstone 5 % av namnda area for aft byggelementets sandwichstruktur ska behglla sin lastbarande formgga tillrackligt lange vid en brand och aft det kravs ett avstgnd mellan tackskikten om gtminstone 70 mm fOr aft ge byggelemen- tets sandwichstruktur tillrackligt hog skjuvhgllfasthet och lastbarande formgga fOr den avsedda anvandningen. As can also be seen from Nur 2, the first 11 and the second roof layer 19, respectively, have an outer edge area 20, 21, 22, 23; 24, 25, 26, 27 which are shearably connected to opposite sides of said one or more edge pieces 12, 13, 15, 16 of the first core material with the aid of a fireproof adhesive (not shown in flgurema). The refractory adhesive covers at least 5% of the area of the ingrown surface 20, 21, 22, 23 of the respective roof layer (11, 19); 24, 25, 26, 27 to provide a shear bond where the first 11 and second roof layers 19 are fixed at a distance from each other which is at least 70 mm via the intermediate first core material 12, 13, 15, 16 which acts as a punch sensor. Of course, the first core material needs more thanks namnda It has been shown that the requirement for the fire-retardant adhesive is sufficient at least 5% of the said area for the sandwich structure of the building element must retain its load-bearing design sufficiently long in the event of a fire and a distance between the roof layers of at least 70 mm in order to give the building elements its sandwich structure has a sufficiently high shear strength and load-bearing design for the intended use.

For att ge byggelementet 10 annu battre lastbarande formgga innefattar det, sgsom framggr av flgur 2, fOretradesvis dessutom itminstone ett, i fOrhgllande till namnda kantstycke(n) 12, 13, 15, 16 och namnda tackskikt 11, 19, inre stycke 14 av det fOrsta karnmaterialet som "ar anordnat mellan gtminstone tvg av namnda mellanstycken 17, 18 av det andra karnmaterialet, varvid namnda f6rsta 11 respektive namnda andra tackskikt 19 dessutom uppvisar, i forhgllande till ngmnda yttre kantomrgden 20, 21, 22, 23; 24, 25, 26, 27, inre omrken 28; 29 som är skjuvfast fOrbundna med motstgende sidor av namnda gtminstone ena mellanstycke 14 av det forsta karnmaterialet med hjalp av namnda brandhgrdiga urn. Stycken eller ribbor av det forsta karnmaterialet tillhanda- halls sgledes fOretradesvis Igngs kanterna av hela byggelementet och inuti kgrnan, t.ex. med ett c-c-avstgnd om 600 mm, men Sven runt eventuella urtagningar i byggelementet for fonster, dorrar eller andra andaral. In order to give the building element 10 an even better load-bearing design, it comprises, As can be seen from Figure 2, preferably also at least one, in the foregoing to said edge piece (s) 12, 13, 15, 16 and said roof layer 11, 19, inner piece 14 of the first core material which is arranged between at least two of said intermediate pieces 17, 18 of the second core material, said the first 11 and the said second roof layer 19, respectively, also have, in relation to the said outer edge area 20, 21, 22, 23; 24, 25, 26, 27, inner circumference 28; 29 which are shearably connected to opposite sides of said at least one intermediate piece 14 of the first core material by means of said brandhgrdiga urn. Pieces or ribs of the first core material provided halls sglede fOretradesvis Igngs the edges of the entire building element and inside the corner, e.g. with a c-c distance of 600 mm, but Sven around any recesses in the building element for windows, doors or other andaral.

I en foredragen utfOringsform, illustrerad i figur 4, uppvisar gtminstone den i byggelementet 10 utgtvanda sidan av det ena eller bgda tackskikten 11, 19 ett brandhardigt skikt 11', 19' som har bgttre brandhardighet an ovriga materialskikt i namnda tackskikt och/eller bgttre brandhardighet an Atminstone det ena av namnda karnmaterial 12, 13, 14, 15, 16. En skan utformning minskar ris- ken for att en eventuell brand dr faste i byggelementet. In a preferred embodiment, illustrated in Figure 4, at least the one shown in the building element 10 extends the side of one or both roof layers 11, 19 a fire-resistant layer 11 ', 19' which has better fire resistance than other material layers in said roof layer and / or better fire resistance than at least one of said core materials 12, 13, 14, 15 , 16. A scan design reduces the risk ken that a possible fire dr fixed in the building element.

Det forsta 11 och/eller andra tackskiktet 19 bestgr fordelaktigt av flera med varandra skjuvfast hoplimmade skivor 11', 11"; 19', 19" av likadana eller olika skivmaterial. En sgdan utformning ger en mojlighet aft optimera byggelemen- tets egenskaper fOr olika tillampningar och aft anvanda billigare skivmaterial i det ena eller bgda tgckskikten nar byggelementet ãr avsett for mindre krgvande tillampningar. The first 11 and / or the second thank-you layer 19 advantageously consists of several discs 11 ', 11 "; 19', 19" of identical or different disc materials. Such a design provides an opportunity to optimize the building elements. properties of different applications and often use cheaper board materials in one or both fog layers when the building element is intended for less demanding applications.

I en foredragen utforingsform bestgr den i byggelementet 10 utgtvanda sidan 11'; 19' av det fOrsta 11 och/eller andra tackskiktet 19 av ett skivmaterial valt frgn gruppen bestgende av gipsskivor, fiberarmerade gipsskivor, och fiberce- mentskivor. Ett sgdant materialval ger byggelementet god brandhardighet. In a preferred embodiment, it consists of the waterlogged side of the building element 10 11 '; 19 'of the first 11 and / or second roof layer 19 of a sheet material selected from the group consisting of gypsum boards, fiber-reinforced gypsum boards, and fiber mentskivor. Such a choice of material gives the building element good fire resistance.

I en fordelaktig utfOringsform bestgr den i byggelementet 10 utgtvanda sidan 11'; 19' av det f6rsta 11 och/eller andra tackskiktet 19 av ett skivmaterial som enbart innehglIer oorganiskt material. Ett skant materialval minskar risken for mogeltillvaxt om byggelementet ska anvandas i fuktiga utrymmen. In an advantageous embodiment, it consists of the waterlogged side of the building element 10 11 '; 19 'of the first 11 and / or second roof layer 19 of a sheet material which contains only inorganic material. A good choice of material reduces the risk of mature growth if the building element is to be used in damp spaces.

I en annan utfOringsform best& den i byggelementet 10 inStvanda sidan 11"; 19" av det forsta 11 och/eller andra tackskiktet 19 av ett skivmaterial valt frAn gruppen bestSende av gipsskivor, fiberarmerade gipsskivor, fibercementskivor, trgfiberskivor eller plywood. Denna utfOringsform gor det mojligt aft tillverka byggelement med olika egenskaper och materialkostnad med anvandning av latt tillgangliga skivmaterial. In another embodiment, it consists of the building element 10 included in the page 11 "; 19 "of the first 11 and / or second roof layer 19 of a sheet material selected from the group consists of gypsum boards, fiber-reinforced gypsum boards, fiber cement boards, wood fiber boards or plywood. This embodiment makes it possible to manufacture building elements with different properties and material cost with the use of easily accessible board materials.

I en foredragen utf6ringsform av byggelementet 10 enligt uppfinningen är det forsta karnmaterialet 12, 13, 14, 15, 16 ett skummaterial med hog brandhar- dighet. Ett sgdant materialval minskar risken for aft elementets sandwichkonstruktion kollapsar pg grund av aft det lastbarande materialet i karnan mjuknar, overggr i gasform, eller antands vid en brand. Det forsta kammaterialet 12, 13, 14, 15, 16 best& fOretradesvis av eft eller flera material valda frin gruppen bestiende av PET-skum, PVC-skum och glasskum. Sidana material är kommersiellt tillgangliga. In a preferred embodiment of the building element 10 according to the invention it is first core material 12, 13, 14, 15, 16 a foam material with high fire resistance density. Such a choice of material reduces the risk of the sandwich construction of the element collapsing due to the fact that the load-bearing material in the core softens, turns into a gaseous form, or ignites in the event of a fire. The first comb material 12, 13, 14, 15, 16 consists of preferably one or more materials selected from the group consisting of PET foam, PVC foam and glass foam. The side materials are commercially available.

I byggelementet 10 enligt uppfinningen bestir det andra karnmaterialet 17, 18 fOretradesvis av ett eller flera porosa material av losa eller lost sammanbundna organiska och/eller oorganiska flbrer. I en fOredragen utfOringsform bestgr det andra karnmaterialet 17, 18 av ett eller flera brandhardiga eller brandhammande material valda frgn gruppen bestgende av glasull, stenull, eller cellulosaull behandlad med flamhammande medel. Eli sgdant materialval minskar risken f6r aft det ljud- och varmeisolerande materialet i karnan antands vid en brand. In the building element 10 according to the invention, the second core material 17, 18 preferably consists of one or more porous materials of loose or loose bonded organic and / or inorganic fibers. In a preferred embodiment, it consists second core material 17, 18 of one or more refractory or fire retardant materials selected from the group consisting of glass wool, rock wool, or cellulose wool treated with flame retardants. Such a choice of material reduces the risk of the sound and heat-insulating material in the core igniting in the event of a fire.

I en foredragen utforingsform av byggelementet 10 enligt uppflnningen är det brandhardiga limmet som tillhandahgller den skjuvfasta forbindningen mellan tackskikten 11; 19 och karnmaterialet 12, 13, 14, 15, 16 och/eller mellan skivor 11', 11"; 19', 19" som ingr i tackskikten ett brandhardigt lim med en skjuvhgllfasthet som ar Stminstone 5 MPa vid 110 °C. Eli sgdant val av lim ger ett byggelement vars sandwichkonstruktion kan bibehglla sin lastbarande formgga tillrackligt lange vid en brand. I en annu mera fordelaktig utforingsform är det brandhardiga limmet ett brandhardigt lim som behgller en skjuvhgllfasthet om gtminstone 2 MPa upp till Stminstone 130 °C. In a preferred embodiment of the building element 10 according to the invention, the refractory adhesive which provides the shear-resistant connection between the roof layers 11; 19 and the core material 12, 13, 14, 15, 16 and / or between sheets 11 ', 11 "; 19', 19" which are included in the roof layers a refractory adhesive with a shear strength of at least 5 MPa at 110 ° C. Eli sgdant choice of glue gives a building element whose sandwich construction can maintain its load-bearing design sufficiently long in the event of a fire. In an even more advantageous embodiment, the refractory adhesive is a refractory adhesive which maintains a shear strength of at least 2 MPa up to at least 130 ° C.

Det brandhardiga limmet som tillhandahgller den skjuvfasta fOrbindningen melIan tackskikten 11, 19 och karnmaterialet 12, 13, 14, 15, 16 och/eller mellan skivor 11', 11"; 19', 19" som inggr i tackskikten är foretradesvis ett brandhardigt lim valt frgn gruppen bestgende av polyuretanlim med flamhammande fyllmedel och cementbaserat lim. I en foredragen utforingsform är det brand- hardiga limmet ett brandhardigt polyuretanlim som innehgller minst 30 vikt-% flamhammande fyllmedel, annu mera fordelaktigt minst 50-vikt % flamhammande fyllmedel. Det flamhammande fyllmedlet är foretradesvis kalciumkarbo- nat, sarskilt fordelaktigt i form av krita, eller kalciumsulfat i form av gips som har en brandhammande fOrmgga tack vare kristallvatten, men man kan aven tanka sig andra flamhammande fyllmedel, sAsom talk, sand, mm. The refractory adhesive which provides the shear bond between the roof layers 11, 19 and the core material 12, 13, 14, 15, 16 and / or between sheets 11 ', 11 "; 19', 19" which is included in the roof layers is preferably a refractory adhesive selected. from the group consisting of polyurethane glue with flame retardant fillers and cement-based adhesives. In a preferred embodiment, the fire the hard adhesive is a refractory polyurethane adhesive which contains at least 30% by weight of flame retardant filler, more advantageously at least 50% by weight of flame retardant filler. The flame retardant filler is preferably calcium carbonate. nat, particularly advantageous in the form of chalk, or calcium sulphate in the form of gypsum which has a fire-retardant form thanks to crystal water, but one can also refuel other flame-retardant fillers, such as talc, sand, etc.

I en fOrsta sarskilt fOrdelaktig uffOringsform av uppfinningen ger det fOrsta 11 tackskiktet, det mellanliggande karnmaterialet 12, 13, 14, 15, 16, det andra tackskiktet 19 och de mellanliggande skjuvfasta brandhardiga limskikten byggelementet 10 en totaltjocklek om gtminstone 100 mm for anvandning som ett vaggelement. In a first particularly advantageous embodiment of the invention, the first 11 the roof layer, the intermediate core material 12, 13, 14, 15, 16, the second roof layer 19 and the intermediate shearproof refractory adhesive layers the building element 10 has a total thickness of at least 100 mm for use as a cradle element.

I en andra sarskilt fordelaktig uffOringsform av uppfinningen ger det forsta 11 tackskiktet, det mellanliggande kammaterialet 12, 13, 14, 15, 16, det andra tackskiktet 19 och de mellanliggande skjuvfasta brandhardiga limskikten byggelementet 10 en totaltjocklek om gtminstone 150 mm f6r anvandning som ett bjalklagselement. In a second particularly advantageous embodiment of the invention, the first 11 roof layer, the intermediate comb material 12, 13, 14, 15, 16, the second roof layer 19 and the intermediate shear-resistant refractory adhesive layers give the building element 10 a total thickness of at least 150 mm for use as a joist element.

I en sarskilt fOredragen utforingsform av byggelementet enligt uppfinningen bestgr bade det fOrsta 11 och andra tackskiktet 19 av dubbla fiberarmerade gipsskivor 11', 11"; 19', 19". Det fOrsta kammaterialet tillhandahglls i form av ribbor 12, 13, 14, 15, 16 av ett PET-skum, medan det andra karnmaterialet tillhandahglls i form av mineralullsskivor 17, 18. De fiberarmerade gipsskivoma 11', 11"; 19', 19" och ribborna 12, 13, 14, 15, 16 av PET-skum är hoplimmade med ett brandhardigt polyuretanlim som innehgller minst 30 vikt-% krita. Eft sgdant byggelement har en sandwichkonstruktion som kan tillverkas genom en enkel tillverkningsprocess med agra f processteg. I sift enklaste utforande kan processen exempelvis innefatta tillskaming av tackskikt och stycken av karnmaterial utg8ende frgn kommersiellt tillgangliga skivmaterial respektive skummaterial, utlaggning av fOrsta tackskikt, applicering av brandhardigt him, utplacering av stycken av fOrsta respektive andra kammaterial i 6nskat mans- ter, limapplicering, pAforande av andra thckskikt, torkning/hardning av det brandhardiga limmet, samt eventuellt renskarning eller annan slutbehandling av byggelementet. Processtegen kan vara vasentligen manuella eller automatiserade i Onskad grad. Sandwichkonstruktionen enligt uppfinningen best& av iattillgangliga material som sammantaget betingar en fOrh8llandevis 18g total kostnad, men ger and byggelementet en tillracklig Killfasthet och lastbarande formgga for aft anvandas i barande bjalklag eller vaggar och kan dar tillhandahglla mycket god ljudisoleringsfOrmgga och liten risk for fortplantning av stomljud, hog varmeisoleringsfOrmgga och god brandhardighet. In a particularly preferred embodiment of the building element according to the invention, both the first 11 and the second roof layer 19 consist of double fiber-reinforced gypsum boards 11 ', 11 "; 19', 19". The first comb material is provided in the form of ribs 12, 13, 14, 15, 16 of one PET foam, while the other core material provided in the form of mineral wool sheets 17, 18. The fiber-reinforced gypsum boards 11 ', 11 "; 19', 19" and the ribs 12, 13, 14, 15, 16 of PET foam are glued together with a refractory polyurethane adhesive containing at least 30% by weight. % chalk. Eft sgdant building element has a sandwich construction that can be manufactured through a simple manufacturing process with agra f process steps. In sift simplest execution The process may include, for example, scaling of roofing layers and pieces of core material based on commercially available board materials and foam materials, laying out first roofing layers, application of refractory film, placement of pieces of first and second comb materials in the desired man-made material. ter, glue application, application of other coatings, drying / hardening of it fireproof glue, as well as any cleaning or other finishing of the building element. The process steps can be essentially manual or automated to the desired degree. The sandwich construction according to the invention consists of available materials which together require a relatively 18g total cost, but gives the building element a sufficient cooling strength and load-bearing The design is often used in load-bearing joists or cradles and can provide very good sound insulation and a low risk of reproduction of frame noise, high thermal insulation and good fire resistance.

Foreliggande uppfinning har i det ovanstSende beskrivits med hjalp av ett antal olika utfOringsformer och med hanvisning till de bilagda ritningarna. Det rdste dock inses att uppfinningen inte är begthnsad till de beskrivna utforingsformer- na och till vad som visas pg ritningarna, utan att man Sven kan thnka sig andra utforingsformer inom ramen for uppfinningen som den definieras av de efterfOljande patentkraven. 11 The present invention has been described above with the aid of a number of different embodiments and with reference to the accompanying drawings. It will be appreciated, however, that the invention is not limited to the embodiments described. na and to what is shown in the drawings, without Sven being able to imagine others embodiments within the scope of the invention as defined by the appended claims. 11

Claims (20)

PATENTKRAVPATENT REQUIREMENTS 1. Byggelement (10), innefattande Atminstone ett forsta ffickskikt (11) och ett andra ffickskikt (19) som är forbundna med motstSende sidor av en mellanlig- gande kama bestSende av Stminstone ett fOrsta karnmaterial (12, 13, 14, 15, 16) och ett andra karnmaterial (17, 18), kannetecknat av att det fOrsta (11) och/eller det andra tackskiktet (19) innefattar ett eller flera forstyvningsskikt (111, 11"; 19'; 19") med en tjocklek som ar Stminstone mm och en elasticitetsmodul som är h6gre an 3000 MPa och hogre an elasticitetsmodulerna hos namnda karnmaterial (12, 13, 14, 15, 16; 17, 18), att det fOrsta kammaterialet (12, 13, 14, 15, 16) har en hogre elasticitetsmodul an elasticitetsmodulen hos det andra karnmaterialet (17, 18), vilket har en elasticitetsmodul som ar lagre an 10 MPa, aft den mellanliggande karnan ar uppbyggd av ett eller flera kantstycken (12, 13, 15, 16) av det fOrsta Iffirnmaterialet som omger ett eller flera mellanliggande stycken (17, 18) av det andra karnmaterialet, varvid namnda ett eller flera mellanliggande stycken (17, 18) av det andra kammaterialet tacker St- minstone 60 % av den area som begransas av namnda ett eller flera kant- stycken (12, 13, 15, 16) av det forsta karnmaterialet, att det fOrsta (11) respektive det andra ffickskiktet (19) uppvisar yttre kantomffiden (20, 21, 22, 23; 24, 25, 26, 27) som ar skjuvfast forbundna med motsffiende sidor av namnda ett eller flera kantstycken (12, 13, 15, 16) av det forsta karnmaterialet med hjalp av eft brandhardigt him, samt att namnda brandhardiga lim tacker Stminstone 5 % av arean hos respektive tackskikts (11, 19) inStvanda yta (20, 21, 22, 23; 24, 25, 26, 27) for aft tillhandahSlla en skjuvfast fOrbindning dar det forsta (11) och andra tackskiktet (19) ar flxerade p ett avstSnd frSn varandra som ar Stminstone 70 mm via det mellanliggande forsta kammaterialet (12, 13, 15, 16) som fungerar som di- stansg iva re.Building element (10), comprising at least a first pocket layer (11) and a second pocket layer (19) connected to opposite sides of an intermediate core consisting of at least one first core material (12, 13, 14, 15, 16). ) and a second core material (17, 18), characterized in that the first (11) and / or the second roof layer (19) comprises one or more stiffening layers (111, 11 "; 19 '; 19") with a thickness which is At least mm and a modulus of elasticity greater than 3000 MPa and higher than the modulus of elasticity of said core material (12, 13, 14, 15, 16; 17, 18), that the first comb material (12, 13, 14, 15, 16) has a higher modulus of elasticity than the modulus of elasticity of the second core material (17, 18), which has a modulus of elasticity lower than 10 MPa, since the intermediate core is made up of one or more edge pieces (12, 13, 15, 16) of the first core material. surrounding one or more intermediate pieces (17, 18) of the second core material, turns in said one or more intermediate pieces (17, 18) of the second comb material, St at least 60% of the area bounded by said one or more edge pieces (12, 13, 15, 16) of the first core material, that the first (11) and the second pocket layer (19), respectively, have the outer edge circumference (20, 21, 22, 23; 24, 25, 26, 27) which are obliquely connected to opposite sides of said one or more edge pieces (12, 13, 15, 16) of the first core material by means of a refractory membrane, and that said refractory adhesive thanks at least 5% of the area of the inner surface (20, 21, 22, 23; 24, 25, 26, 27) of the respective roof layer (11, 19) to provide a shear-resistant connection where the first (11) and second roof layers (19) are flexed on a distance of at least 70 mm from each other via the intermediate first cam material (12, 13, 15, 16) which acts as a spacer. 2. Byggelement (10) enligt patentkrav 1, ka n neteckn a t a v att namnda byggelement (10) dessutom innefattar Stminstone ett, i fOrhSllande till namnda kantstycke(n) (12, 13, 15, 16) och namnda ffickskikt (11, 19), inre stycke (14) av det forsta kammaterialet som ar anordnat mellan Stminstone tv'S av namnda mellanstycken (17, 18) av det andra Iffirnmaterialet, samt att namnda forsta (11) respektive namnda andra 12 thckskikt (19) dessutom uppvisar, i fOrhAllande till namnda yttre kantomdden (20, 21, 22, 23; 24, 25, 26, 27), inre omrAden (28; 29) som är skjuvfast fürbundna med motsdende sidor av namnda Stminstone ena mellanstycke (14) av det forsta Ithrnmaterialet med hjalp av namnda brandhardiga urn.Building element (10) according to claim 1, characterized in that said building element (10) further comprises at least one, in relation to said edge piece (n) (12, 13, 15, 16) and said pocket layer (11, 19) , inner piece (14) of the first comb material arranged between at least two of said intermediate pieces (17, 18) of the second lining material, and that said first (11) and said second 12 thick layers (19) furthermore have, in relation to said outer edge circumference (20, 21, 22, 23; 24, 25, 26, 27), inner areas (28; 29) which are shearably connected to opposite sides of said at least one intermediate piece (14) of the first inner material by means of named fiery urn. 3. Byggelement (10) enligt patentkrav 1 eller 2, nneteckn a t a v aft Atminstone den i byggelementet (10) udtvanda sidan av det ena eller b8da tackskikten (11, 19) uppvisar ett brandhardigt skikt (11', 19') som har battre brandhardighet An &riga materialskikt i namnda tackskikt och/eller bAttre brandhardighet an tminstone det ena av namnda ithrnmaterial (12, 13, 14, 15, 16).Building element (10) according to claim 1 or 2, characterized in that at least the side of one or both roof layers (11, 19) extruded into the building element (10) has a fire-resistant layer (11 ', 19') which has better fire resistance. Other layers of material in said roofing layer and / or better fire resistance than at least one of said elements (12, 13, 14, 15, 16). 4. Byggelement (10) enligt nAgot av de foreggende patentkraven, n n eteckn a t a v aft det forsta (11) och/eller andra thckskiktet (19) besdr av flera med varandra skjuvfast hoplimmade skivor (11', 11"; 19', 19") av likadana eller olika skivmaterial.Building element (10) according to any one of the preceding claims, characterized in that the first (11) and / or the second cover layer (19) consists of several discs (11 ', 11 "; 19', 19" shear-glued together). ) of the same or different disc materials. 5. Byggelement (10) enligt agot av de faregSende patentkraven, ka nneteckn a t a v aft den i byggelementet (10) udtvanda sidan (11'; 19') av det forsta (11) och/eller andra thckskiktet (19) bestAr av ett skivmate- rial vett fr8n gruppen besdende av gipsskivor, fiberarmerade gipsskivor, och fibercementskivor.Building element (10) according to one of the preceding claims, characterized in that the side (11 '; 19') of the first (11) and / or second cover layer (19) extruded in the building element (10) consists of a sheet mat - rial sense from the group possessing gypsum boards, fiber-reinforced gypsum boards, and fiber-cement boards. 6. Byggelement (10) enligt agot av de foreaende patentkraven, k a n n eteckn a t a v aft den i byggelementet (10) udtvanda sidan (11'; 19') av det forsta (11) och/eller andra thckskiktet (19) besdr av ett skivmaterial som enbart innehAller oorganiskt material.Building element (10) according to one of the preceding claims, characterized in that the side (11 '; 19') of the first (11) and / or the second thick layer (19) extruded in the building element (10) consists of a sheet material which contains only inorganic material. 7.7. Byggelement (10) enligt agot av de foregSende patentkraven, k a n n eteckn a t a v aft den i byggelementet (10) inAtvanda sidan (11"; 19") av det fOrsta (11) och/eller andra tackskiktet (19) besdr av ett skivmaterial valt frAn gruppen besdende av gipsskivor, fiberarmerade gipsskivor, fibercementskivor, trafiberskivor eller plywood.Building element (10) according to one of the preceding claims, may be characterized in that the side (11 "; 19") of the first (11) and / or second roof layer (19) used in the building element (10) consists of a sheet material selected from the group possessed of gypsum boards, fiber-reinforced gypsum boards, fiber cement boards, fiberboard or plywood. 9. Byggelement (10) enligt agot av de foregSende patentkraven, ka n n eteckn a t a v aft det forsta karnmaterialet (12, 13, 14, 15, 16) ar ett skummaterial med hog brandhardighet. 13Building element (10) according to one of the preceding claims, characterized in that the first core material (12, 13, 14, 15, 16) is a foam material with high fire resistance. 13 10. Byggelement (10) enligt nAgot av de foregSende patentkraven, kannetecknat a v att det forsta karnmaterialet (12, 13, 14, 15, 16) best& av ett eller flera material valda frSn gruppen bestSende av PET-skum, PVC-skum och glasskum.Building element (10) according to one of the preceding claims, characterized in that the first core material (12, 13, 14, 15, 16) consists of one or more materials selected from the group consisting of PET foam, PVC foam and glass foam. . 11. Byggelement (10) enligt nSgot av de fOregSende patentkraven, ka n n eteck n a t a v aft det andra karnmaterialet (17, 18) best& av ett eller flera porosa material av losa eller lOst sammanbundna organiska och/eller oorganiska fibrer.A building element (10) according to any one of the preceding claims, which may comprise the second core material (17, 18) consisting of one or more porous materials of loose or loosely bonded organic and / or inorganic fibers. 12. Byggelement (10) enligt nAgot av de foregSende patentkraven, ka n neteckn a t a v aft det andra karnmaterialet (17, 18) bestSr av ett eller flera brandhardiga eller brandhammande material valda frSn gruppen bestende av glasull, stenull, eller cellulosaull behandlad med flamhammande medel.Building element (10) according to any one of the preceding claims, characterized in that the second core material (17, 18) consists of one or more refractory or fire-retardant materials selected from the group consisting of glass wool, rock wool, or cellulose wool treated with flame retardants. . 13. Byggelement (10) enligt nAgot av de foregSende patentkraven, ka n n eteck n a t a v aft det brandhardiga limmet som tillhandahSlIer den skjuvfasta forbindningen mellan tackskikten (11; 19) och karnmaterialet (12, 13, 14, 15, 16) och/eller mellan skivor (11', 11"; 19', 19") som ingAr i tackskikten Sr ett brandhardigt lim med en skjuvhSlIfasthet som Sr 8tminstone 5 MPa vid 110 °C.A building element (10) according to any one of the preceding claims, which may be characterized by the refractory adhesive which provides the shear-resistant connection between the roof layers (11; 19) and the core material (12, 13, 14, 15, 16) and / or between Sheets (11 ', 11 "; 19', 19") included in the roof layers are a refractory adhesive with a shear strength of at least 5 MPa at 110 ° C. 14. Byggelement (10) enligt agot av de foregSende patentkraven, ka n neteckn a t a v aft det brandhardiga limmet som tillhandahSlIer den skjuvfasta forbindningen mellan tackskikten (11, 19) och karnmaterialet (12, 13, 14, 15, 16) och/eller mellan skivor (11', 11"; 19', 19") som ingAr i tackskikten Ar ett brandhardigt lirn som behSlIer en skjuvhSlIfasthet om Stminstone 2 MPa upp till Stminstone 130 °C.Building element (10) according to one of the preceding claims, characterized in that the refractory adhesive which provides the shear-resistant connection between the roof layers (11, 19) and the core material (12, 13, 14, 15, 16) and / or between Discs (11 ', 11 "; 19', 19") included in the thank-you layers are a refractory line having a shear strength of at least 2 MPa up to at least 130 ° C. 15. Byggelement (10) enligt agot av de foregSende patentkraven, kö nneteckn at a v aft det brandhardiga limmet som tillhandahSlIer den skjuvfasta forbindningen mellan tackskikten (11, 19) och karnmaterialet (12, 13, 14, 15, 16) och/eller mellan skivor (11', 11"; 19', 19") som ingSr i tackskikten Sr ett brandhardigt lim valt frSn gruppen bestSende av polyuretan- lim med flamhammande fyllmedel och cementbaserat lim. 14Building element (10) according to one of the preceding claims, characterized in that the fire-resistant adhesive which provides the shear-resistant connection between the roof layers (11, 19) and the core material (12, 13, 14, 15, 16) and / or between boards (11 ', 11 "; 19', 19") that are part of the roof layers If a fire-resistant adhesive is selected from the group consisting of polyurethane adhesives with flame-retardant fillers and cement-based adhesives. 14 16. Byggelement (10) enligt patentkrav 15, kannetecknat a v att det brandhardiga limmet är ett polyuretanlim som innehSlIer minst 30 vikt-% flamhammande fyllmedel.Building element (10) according to claim 15, characterized in that the refractory adhesive is a polyurethane adhesive which contains at least 30% by weight of flame retardant filler. 17. Byggelement (10) enligt patentkrav 15 eller 16, ka n neteckn a t a v aft det brandhardiga limmet är ett polyuretanlim som innehAller minst 50-vikt °A) flamhammande fyllmedel, foretradesvis i form av krita.Building element (10) according to claim 15 or 16, characterized in that the flammable adhesive is a polyurethane adhesive which contains at least 50% by weight (A) of flame retardant filler, preferably in the form of chalk. 18. Byggelement (10) enligt nggot av patentkraven 1-17, kannetecknat a v aft det forsta (11) tackskiktet, det mellanliggande karnmaterialet (12, 13, 14, 15, 16), det andra tackskiktet (19) och de mellanliggande skjuvfasta brandhardiga limskikten ger byggelementet (10) en totaltjocklek am Atminstone 100 mm for anvandning som eft vaggelement.Building element (10) according to any one of claims 1-17, characterized in that the first (11) roof layer, the intermediate core material (12, 13, 14, 15, 16), the second roof layer (19) and the intermediate shear-resistant refractory the adhesive layers give the building element (10) a total thickness of at least 100 mm for use as a cradle element. 19. Byggelement (10) enligt nggot av patentkraven 1-17, ka n n eteckn a t a v aft det forsta (11) tackskiktet, det mellanliggande karnmaterialet (12, 13, 14, 15, 16), det andra tackskiktet (19) och de mellanliggande skjuvfasta brandhardiga limskikten ger byggelementet (10) en total- tjocklek om Stminstone 150 mm for anvandning som ett bjalklagselement.Building element (10) according to any one of claims 1-17, characterized in that the first (11) roof layer, the intermediate core material (12, 13, 14, 15, 16), the second roof layer (19) and the intermediate shear-resistant fire-resistant adhesive layers give the building element (10) a total thickness of at least 150 mm for use as a joist element. 20. Byggelement (10) enligt nAgot av de foregSende patentkraven, kannetecknat av aft aft bAde det forsta (11) och andra tackskiktet (19) besdr av dubbla fiber- armerade gipsskivor (11', 11"; 19', 19"), aft det forsta karnmaterialet tillhandahAlls i form av ribbor (12, 13, 14, 15, 16) av ett PET-skum, aft det andra karnmaterialet tillhandahlls i form av mineralullsskivor (17, 18), samt aft de flberarmerade gipsskivoma (11', 11"; 19', 19") och ribborna (12, 13, 14, 15, 16) av PET-skum ãr hoplimmade med ett brandhardigt polyuretanlirn som innehglIer minst 30 vikt-% krita. 1/2 11 12 13 18Building element (10) according to any one of the preceding claims, characterized in that both the first (11) and the second roof layer (19) consist of double fiber-reinforced gypsum boards (11 ', 11 "; 19', 19"), the first core material is provided in the form of ribs (12, 13, 14, 15, 16) of a PET foam, the second core material is provided in the form of mineral wool boards (17, 18), and the fiber-reinforced gypsum boards (11 ', 11 "; 19 ', 19") and the ribs (12, 13, 14, 15, 16) of PET foam are glued together with a refractory polyurethane liner containing at least 30% by weight of chalk. 1/2 11 12 13 18
SE1300583A 2013-09-06 2013-09-06 Building elements with first and second cover layers and intermediate core SE537477C2 (en)

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SE1300583A SE537477C2 (en) 2013-09-06 2013-09-06 Building elements with first and second cover layers and intermediate core
PCT/SE2014/000109 WO2015034409A1 (en) 2013-09-06 2014-09-01 Building element with first and second cover layers and intermediate core
NO14841574A NO3042003T3 (en) 2013-09-06 2014-09-01
DK14841574.8T DK3042003T3 (en) 2013-09-06 2014-09-01 BUILDING ELEMENT WITH A FIRST AND SECOND COVERAGE AND AN INTERNAL CORE OF TWO DIFFERENT MATERIALS
EP14841574.8A EP3042003B1 (en) 2013-09-06 2014-09-01 Building element with first and second cover layers and intermediate core having two different materials

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NL2027647B1 (en) * 2021-02-25 2022-09-20 Van Mensvoort Beheer B V Insulation panel for acoustic and/or thermal insulation, assembly, and method
US20240102284A1 (en) * 2022-09-28 2024-03-28 Karlta Trading Inc. A Building Panel Assembly

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EP3042003B1 (en) 2018-02-07
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WO2015034409A1 (en) 2015-03-12
DK3042003T3 (en) 2018-05-22

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