EP1528172A1 - Polystyrene flooring slabs and their method of manufacture - Google Patents
Polystyrene flooring slabs and their method of manufacture Download PDFInfo
- Publication number
- EP1528172A1 EP1528172A1 EP04300749A EP04300749A EP1528172A1 EP 1528172 A1 EP1528172 A1 EP 1528172A1 EP 04300749 A EP04300749 A EP 04300749A EP 04300749 A EP04300749 A EP 04300749A EP 1528172 A1 EP1528172 A1 EP 1528172A1
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- European Patent Office
- Prior art keywords
- underside
- sides
- polystyrene
- sheet
- block
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
- E04B5/261—Monolithic filling members
- E04B5/263—Monolithic filling members with a flat lower surface
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
- E04B5/261—Monolithic filling members
- E04B5/265—Monolithic filling members with one or more hollow cores
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
- E04B5/266—Filling members covering the undersurface of the beams
Definitions
- the present invention relates to the general field of the building. It concerns more especially the expanded polystyrene (or interstitial) slabs used traditionally in the manufacture of crawl space floors or tops of basement.
- the invention also relates to the method of manufacturing this particular slab.
- Floors of crawl spaces or basements may have expanded polystyrene slabs, obtained by molding or cutting, which are interposed between prefabricated beams arranged parallel to each other other. These beams are generally made of prestressed concrete or lattice metallic. The slabs in question, suitably juxtaposed, provide the formwork and insulation of the floor slab; they are destined to stay at home after pouring the slab.
- the underside of these expanded polystyrene slabs is covered with an underface layer, which is made of a material intended to prevent the degradation of polystyrene by rodents, and also to improve the insulation characteristics (thermal and sound) of the floor.
- an underface layer which is made of a material intended to prevent the degradation of polystyrene by rodents, and also to improve the insulation characteristics (thermal and sound) of the floor.
- corresponding sub-faces consist of fibers mixed with a type binder cement.
- the present invention aims to remedy these drawbacks by proposing a the underside of which has a reduced thickness and mass, while providing interesting insulation characteristics; the sub-faces in question are very easy to join with the associated polystyrene block and they ensure effective protection against rodent attacks.
- the slab structure according to the invention consists of a block of polystyrene which is delimited by a lower face, an upper face, two sides of extremities and two lateral sides each provided with an upper longitudinal lug positioning on the receiving beams; and this hourdis is characterized in that it comprises an underside comprising at least one outer layer of metallized material, the thickness of which is between 5 and 100 ⁇ m.
- this outer layer of metallized material goes back at least partially on both sides of the polystyrene block, and also advantageously on both end sides of this block, so as to cover the less the lower part of said sides.
- This layer of metallized material reinforces the insulation of the polystyrene block; in particular, it forms a "vapor barrier" structure.
- This metallized layer is also particularly effective in the context of its anti-rodent function, particularly because of the partial overlap of the lower portions of the lateral sides and ends of the polystyrene block. This layer, very light, does not significantly increase the weight of the slab and it can easily be secured by gluing against the corresponding polystyrene faces.
- the underside comprises at least one layer of insulating material interposed at least between the underside of the polystyrene block and the outer layer of metallized material.
- said metal sheet is advantageously entirely coated on its inner face with at least one layer of insulating material.
- the layer (s) of insulating material used advantageously consist of polyethylene bubble film structures.
- the outer layer of metallized material is preferably made of aluminum (metal foil and possibly side adhesive strips).
- the slab structure complies with the invention is of the type devoid of a finishing tongue, and this structure comprises a underside that goes up on substantially half of the height under ears of the sides side.
- one of the lateral sides of the slab structure is provided with a finishing tongue delimited by a border formed longitudinal free to fit the opposite lateral side of a slab arranged in vis-à-vis, and this structure of hourdis has an underside that goes back at least partially on the longitudinal edge of said finishing tongue.
- the underside advantageously rises on said longitudinal edge, slightly beyond the angle of the dihedron.
- FIG. 1 schematically represents a slab made of polystyrene 1, type without finishing tongue, suitably positioned between two beams 2, here simply sketched (in a classical way, the section of the beams is very often T-shaped upside down).
- the corresponding beams 2 are generally made of concrete prestressed or wire mesh. They are arranged parallel to each other others, with a distance between them adapted for the positioning of the different juxtaposed slabs, to receive a bed of concrete to form including a crawl space floor or high basement.
- This slab 1 has a conventional general conformation; it consists of a block 1 'of expanded polystyrene, the particular contour is obtained by cutting or directly by molding.
- the polystyrene block 1 ' is delimited by a lower face 3, an upper face 4, two lateral sides 5 each intended to come opposite a beam 2, and two end sides 6 intended to come into contact with the same slabs. juxtaposed.
- the two lateral sides 5 each comprise a longitudinal lug 7 arranged in their upper part; these ears 7 form a shoulder 8 adapted to rest on the heels of the beams 2 receiving.
- the lower face 3 of the slab 1 comprises an attached underside 9, of an original nature, constituted here - a complex formed of an outer sheet 10 of metallized material associated with an insulation layer 11, and - two adhesive strips 12.
- the outer sheet 10 is preferably an aluminum foil, the thickness of which is between 5 and 100 ⁇ m.
- the insulating layer 11 consists of a polyethylene bubble film. This insulating layer 11 may have a thickness of between 2 and 60 mm; she is made from a polyethylene sheet 20 to 300 ⁇ m thick.
- the protective complex 10, 11 of the underside 9 can advantageously be prepared in advance by joining the aluminum foil 10 with the bubble film 11; it may be packaged in roll for transport or storage.
- the protective complex 10, 11 is cut into suitable dimensions to completely cover the lower face 3 of the polystyrene block 1 '.
- the complex 10, 11 is cut in a rectangle whose width corresponds to the distance between the two end sides 6 of the block 1 ', as can be seen in Figure 3.
- This complex 10 , 11 is further cut so that its length is greater than the distance between the two lateral sides 5 of the polystyrene block (FIG. 2), so that said complex rises about half of the height under the ear 7 of said sides 5. returns 15 of the complex thus formed, as shown in detail in Figure 2, each face a side face of beam 2, and thus mask all the part of the lateral side 5 may be degraded by rodents.
- the lower protection of the polystyrene block 1 ' is finalized by the laying of the metallized adhesive strips 12, attached to the angles formed by the lower face 3 of the polystyrene block 1' and the end sides 6, as shown in the figures 1 and 3.
- the metallized strips 12 are fixed so as to extend partly on the end sides 6 and partly on the outer face of the metallized sheet 10. It can still be seen in FIG. 1 that the two ends 16 of the adhesive strips 12 extend at the two lateral sides 5, in order to optimize the masking of the lower part of the polystyrene block 1 '. These adhesive strips 12 thus constitute the return of the underside 9 for the two end sides 6.
- the adhesive strips 12 are advantageously made of aluminum and their thickness is between 5 and 100 ⁇ m.
- the use of the metallized outer sheet 10 and metallized adhesive strips 12 forms a protective layer which covers the lower face 3 of the polystyrene block, and also the lower parts of the lateral sides 5 and ends 6.
- This layer external metalized material 10, 12 prevents rodents from degrading the block of polystyrene; it also provides enhanced thermal insulation, in particular its thermoreflection and vapor barrier properties.
- the combination of the insulation layer 11 with the metallized sheet 10 increases the strength of this metallized sheet 10, and also improves the characteristics thermal insulation of the slabs equipped.
- the bubble film 11 allows on the other hand to absorb the pressures or shocks subjected to the metallized sheet 10, in particular where it is necessary to use underlying shoring structures for the casting of the concrete bed.
- the protective underside 9 negligibly modifies the thickness and the weight equipped hoard. These slab structures are therefore easily manipulable and, ultimately, significantly limit the dead weight of the floor.
- the various constituent elements of the soffit 9 can in addition very easily be secured to the underside and sides of the polystyrene block, by their nature and their flexibility characteristics.
- Figures 4 and 5 show a variant of expanded polystyrene slab 20, according to the invention, here of the type conventional finishing tab, that is to say comprising a lateral tongue 21 intended to be positioned under the beams in order to achieve aesthetic continuity and improve noticeable both thermal and sound insulation.
- FIGS. 4 and 5 show a conventional slab structure of an expanded polystyrene block 20 'delimited by a bottom face 3, a face of 4, two end sides 6 and two lateral sides 5. These two lateral sides 5 have longitudinal lugs 7, and one of them has the finishing tongue 21, mentioned above, in its lower part.
- the polystyrene block 20 ' is also provided with relief recesses classics 25.
- finishing tongue 21 has a longitudinal edge free 22 which is shaped dihedron, with an angle or edge marked 23 ( Figure 5).
- This longitudinal edge 22 is structured to match the opposite lateral side 5 of a identical hourdis positioned opposite.
- the protective complex 10, 11 is here cut so that its length is sufficient to form a return 15 at the free longitudinal edge 22 of the tongue 21, and also on the opposite lateral side 5. More specifically, the return 15 provided for in level of the tongue 21 has a length sufficient to go back at least slightly beyond the edge 23 of the longitudinal edge 22 dihedron.
- the protection is finalized, as in the previous embodiment, by the application of metallized adhesive strips 12 (preferably made of aluminum), on the length of the angles formed by the end sides 6 and the lower face 3 of the block polystyrene 20 '.
- metallized adhesive strips 12 preferably made of aluminum
- This slatted tongue structure 21, thus equipped, is particularly well protected against rodent-related damage and has reinforced thermal and sound insulation.
- Such slabs 20 are on the other hand very easily manipulated due to the still negligible influence of the underside 9 on their thickness and weight.
- the underside of protection 9 can fully include an insulating structure consisting of a superposition of several bubble films.
- the insulation layer may be removed, the protective underside then being made of only one sheet of metallized material secured to the underside 3 of the polystyrene block equipped, possibly associated with peripheral extensions, for example in the form of metallic adhesive strips, to cover the lower part of the sides side and end of this block.
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- Architecture (AREA)
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
Description
La présente invention a trait au domaine général du bâtiment. Elle concerne plus particulièrement les hourdis (ou entrevous) en polystyrène expansé, utilisés traditionnellement dans la fabrication des planchers de vides sanitaires ou de hauts de sous-sol. L'invention concerne encore le procédé de fabrication de ce hourdis particulier.The present invention relates to the general field of the building. It concerns more especially the expanded polystyrene (or interstitial) slabs used traditionally in the manufacture of crawl space floors or tops of basement. The invention also relates to the method of manufacturing this particular slab.
Les planchers de vides sanitaires ou de hauts de sous-sol peuvent comporter des hourdis en polystyrène expansé, obtenus par moulage ou par découpage, qui sont intercalés entre des poutrelles préfabriquées disposées parallèlement les unes aux autres. Ces poutrelles sont généralement réalisées en béton précontraint ou en treillis métallique. Les hourdis en question, convenablement juxtaposés, assurent le coffrage et l'isolation de la dalle de compression du plancher ; ils sont destinés à rester à demeure après le coulage de la dalle.Floors of crawl spaces or basements may have expanded polystyrene slabs, obtained by molding or cutting, which are interposed between prefabricated beams arranged parallel to each other other. These beams are generally made of prestressed concrete or lattice metallic. The slabs in question, suitably juxtaposed, provide the formwork and insulation of the floor slab; they are destined to stay at home after pouring the slab.
Ces planchers à hourdis ou entrevous sont particulièrement intéressants en terme d'isolation thermique ; en outre, ils présentent un poids mort très faible.These floors with slabs or interjoists are particularly interesting in term thermal insulation; in addition, they have a very low dead weight.
De manière courante, tel que décrit dans les documents FR-A-2 352 125 et FR-A-2 432 578, la face inférieure de ces hourdis en polystyrène expansé est recouverte d'une couche rapportée formant sous-face, qui est réalisée dans un matériau visant à éviter la dégradation du polystyrène par les rongeurs, et aussi visant à améliorer les caractéristiques d'isolation (thermique et phonique) du plancher. En règle générale, les sous-faces correspondantes sont constituées de fibres mélangées avec un liant de type ciment.Commonly, as described in FR-A-2 352 125 and FR-A-2 432 578, the underside of these expanded polystyrene slabs is covered with an underface layer, which is made of a material intended to prevent the degradation of polystyrene by rodents, and also to improve the insulation characteristics (thermal and sound) of the floor. As a general rule, corresponding sub-faces consist of fibers mixed with a type binder cement.
Cependant, les sous-faces en question sont bien souvent épaisses et lourdes, ce qui limite la maniabilité des hourdis. De plus, ces sous-faces ne sont pas faciles à coller sur le polystyrène et leur pouvoir isolant n'est pas toujours optimum.However, the sub-faces in question are often thick and heavy, which limits the workability of the slabs. Moreover, these sub-faces are not easy to stick on polystyrene and their insulating power is not always optimal.
La présente invention vise à remédier à ces inconvénients en proposant un hourdis dont la sous-face présente une épaisseur et une masse réduites, tout en apportant des caractéristiques d'isolation intéressantes ; les sous-faces en question sont très faciles à solidariser avec le bloc de polystyrène associé et elles assurent une protection efficace contre les attaques de rongeurs.The present invention aims to remedy these drawbacks by proposing a the underside of which has a reduced thickness and mass, while providing interesting insulation characteristics; the sub-faces in question are very easy to join with the associated polystyrene block and they ensure effective protection against rodent attacks.
La structure de hourdis conforme à l'invention est constituée d'un bloc de polystyrène qui est délimité par une face inférieure, une face supérieure, deux côtés d'extrémités et deux côtés latéraux munis chacun d'une oreille longitudinale supérieure assurant le positionnement sur les poutrelles de réception ; et ce hourdis se caractérise par le fait qu'il comporte une sous-face comprenant au moins une couche externe de matière métallisée, dont l'épaisseur est comprise entre 5 et 100 µm.The slab structure according to the invention consists of a block of polystyrene which is delimited by a lower face, an upper face, two sides of extremities and two lateral sides each provided with an upper longitudinal lug positioning on the receiving beams; and this hourdis is characterized in that it comprises an underside comprising at least one outer layer of metallized material, the thickness of which is between 5 and 100 μm.
De préférence, cette couche externe de matière métallisée remonte au moins partiellement sur les deux côtés latéraux du bloc de polystyrène, et aussi avantageusement sur les deux côtés d'extrémités de ce bloc, de sorte à recouvrir au moins la partie inférieure desdits côtés.Preferably, this outer layer of metallized material goes back at least partially on both sides of the polystyrene block, and also advantageously on both end sides of this block, so as to cover the less the lower part of said sides.
Cette couche de matière métallisée renforce l'isolation du bloc de polystyrène ; elle
forme en particulier une structure « pare-vapeur ». Cette couche métallisée est d'autre
part particulièrement efficace dans le cadre de sa fonction anti-rongeurs, notamment du
fait du recouvrement partiel des parties inférieures des côtés latéraux et d'extrémités du
bloc de polystyrène.
Cette couche, très légère, n'augmente pas sensiblement le poids du hourdis et elle peut
très facilement être solidarisée par collage contre les faces correspondantes de
polystyrène.This layer of metallized material reinforces the insulation of the polystyrene block; in particular, it forms a "vapor barrier" structure. This metallized layer is also particularly effective in the context of its anti-rodent function, particularly because of the partial overlap of the lower portions of the lateral sides and ends of the polystyrene block.
This layer, very light, does not significantly increase the weight of the slab and it can easily be secured by gluing against the corresponding polystyrene faces.
Selon une forme préférée de réalisation, la sous-face du hourdis comprend :
- une feuille externe de matière métallisée dont les extrémités remontent au moins partiellement sur deux côtés du bloc de polystyrène, et dont les bordures latérales longent les deux autres côtés de ce bloc, et
- deux bandes adhésives de matière métallisée, placées à cheval sur les deux angles formés par la face inférieure du bloc de polystyrène et les côtés de ce bloc longés par les bordures latérales de la feuille précitée. De préférence, les bandes adhésives de matière métallique viennent se coller, d'une part directement contre les parties inférieures des côtés du bloc de polystyrène, et d'autre part sur les bordures latérales de la feuille métallisée.
- an outer sheet of metallized material whose ends extend at least partially on two sides of the polystyrene block, and whose side edges run along the other two sides of this block, and
- two adhesive strips of metallized material, straddling the two corners formed by the underside of the polystyrene block and the sides of this block along the side edges of the aforementioned sheet. Preferably, the adhesive strips of metallic material are bonded, on the one hand directly against the lower parts of the sides of the polystyrene block, and on the other hand on the lateral edges of the metallized sheet.
Selon une autre caractéristique, la sous-face comporte au moins une couche de matière isolante interposée au moins entre la face inférieure du bloc de polystyrène et la couche externe de matière métallisée.According to another characteristic, the underside comprises at least one layer of insulating material interposed at least between the underside of the polystyrene block and the outer layer of metallized material.
Dans le cadre d'une sous-face comprenant une feuille de matière métallisée associée à des bandes adhésives latérales, ladite feuille métallique est avantageusement entièrement revêtue sur sa face interne d'au moins une couche de matière isolante.In the context of an underside comprising a sheet of metallized material associated with side adhesive strips, said metal sheet is advantageously entirely coated on its inner face with at least one layer of insulating material.
La ou les couches de matière isolante utilisées consistent avantageusement en des structures de film à bulles en polyéthylène.The layer (s) of insulating material used advantageously consist of polyethylene bubble film structures.
D'autre part, la couche externe de matière métallisée est de préférence réalisée en aluminium (feuille métallique et éventuellement bandes adhésives latérales).On the other hand, the outer layer of metallized material is preferably made of aluminum (metal foil and possibly side adhesive strips).
Selon une première forme de réalisation, la structure de hourdis conforme à l'invention est du type dépourvue de languette de finition, et cette structure comporte une sous-face qui remonte sur sensiblement la moitié de la hauteur sous oreilles des côtés latéraux.According to a first embodiment, the slab structure complies with the invention is of the type devoid of a finishing tongue, and this structure comprises a underside that goes up on substantially half of the height under ears of the sides side.
Selon une autre forme de réalisation possible, l'un des côtés latéraux de la structure de hourdis est muni d'une languette de finition délimitée par une bordure longitudinale libre conformée pour épouser le côté latéral opposé d'un hourdis disposé en vis-à-vis, et cette structure de hourdis comporte une sous-face qui remonte au moins partiellement sur la bordure longitudinale de ladite languette de finition. Dans le cadre d'une languette de finition dont la bordure longitudinale est en forme de dièdre, la sous-face remonte avantageusement sur ladite bordure longitudinale, légèrement au-delà de l'angle du dièdre.According to another possible embodiment, one of the lateral sides of the slab structure is provided with a finishing tongue delimited by a border formed longitudinal free to fit the opposite lateral side of a slab arranged in vis-à-vis, and this structure of hourdis has an underside that goes back at least partially on the longitudinal edge of said finishing tongue. In the context of a finishing tongue whose longitudinal edge is in the form of dihedron, the underside advantageously rises on said longitudinal edge, slightly beyond the angle of the dihedron.
L'invention concerne également un procédé original de fabrication d'une structure de hourdis telle que définie ci-avant. Ce procédé consiste :
- à préparer un bloc de polystyrène en forme générale de hourdis, délimité par une face inférieure, une face supérieure, deux côtés d'extrémités et deux côtés latéraux munis chacun d'une oreille longitudinale supérieure,
- à préparer une feuille de matière métallisée, genre aluminium par exemple, dont la face interne est éventuellement revêtue d'au moins une couche de matière isolante, genre film de polyéthylène à bulles par exemple, la largeur de ladite feuille métallisée ou du complexe feuille métallisée/couche isolante correspondant à la largeur dudit bloc de polystyrène entre les deux côtés d'extrémités, et la longueur de ladite feuille métallisée ou dudit complexe feuille métallisée/couche isolante étant supérieure à la longueur dudit bloc de polystyrène entre les deux côtés latéraux,
- à solidariser par collage la face interne de la feuille métallisée ou du complexe feuille métallisée/couche isolante avec la face inférieure et les parties inférieures des côtés latéraux du bloc de polystyrène, les bordures latérales de ladite feuille métallisée ou dudit complexe feuille métallisée/couche isolante longeant les bordures d'extrémités dudit bloc de polystyrène, et les extrémités libres de ladite feuille métallisée ou dudit complexe feuille métallisée/couche isolante étant rabattues contre les parties inférieures des côtés latéraux dudit bloc de polystyrène, et
- à coller des bandes adhésives de matière métallisée, par exemple en aluminium, à cheval sur les deux angles formés par la face inférieure du bloc de polystyrène et ses côtés d'extrémités.
- preparing a block of polystyrene in the general form of slabs, delimited by a lower face, an upper face, two end faces and two lateral sides each provided with an upper longitudinal lug,
- to prepare a sheet of metallized material, eg aluminum, whose inner face is optionally coated with at least one layer of insulating material, eg polyethylene bubble film, the width of said metallized sheet or foil complex metallized insulating layer corresponding to the width of said polystyrene block between the two end sides, and the length of said metallized sheet or said metallized sheet / insulating layer complex being greater than the length of said polystyrene block between the two lateral sides,
- bonding by bonding the internal face of the metallized foil or the metallized foil / insulating layer complex with the lower face and the lower portions of the lateral sides of the polystyrene block, the lateral edges of said foil or metallized foil / insulating layer complex along the end edges of said polystyrene block, and the free ends of said metallized sheet or said metallized sheet / insulating layer complex being folded against the lower portions of the lateral sides of said polystyrene block, and
- to stick adhesive strips of metallized material, for example aluminum, straddling the two corners formed by the underside of the polystyrene block and its end sides.
Mais l'invention sera encore illustrée, sans être aucunement limitée, par la description suivante de deux formes particulières de réalisation conformes à l'invention, données uniquement à titre d'exemples, et représentées sur les dessins annexés suivants dans lesquels :
- la figure 1 est une vue schématique, en perspective, d'un hourdis en polystyrène conforme à l'invention, du type sans languette de finition, représenté ici positionné entre deux poutrelles de réception ;
- la figure 2 est une vue en coupe transversale selon 2-2 de la figure 1, détaillant la constitution de la sous-face du hourdis ;
- la figure 3 est une vue en coupe selon 3-3 du hourdis de la figure 1, détaillant l'agencement des bandes adhésives métallisées ;
- la figure 4 est une vue en perspective d'une variante de réalisation d'un hourdis en polystyrène conforme à l'invention, du type avec languette de finition ;
- la figure 5 est une vue en coupe transversale selon 5-5 de la figure 4.
- Figure 1 is a schematic perspective view of a polystyrene slab according to the invention, the type without finishing tab, shown here positioned between two receiving beams;
- Figure 2 is a cross-sectional view along 2-2 of Figure 1, detailing the constitution of the underside of the slab;
- Figure 3 is a sectional view along 3-3 of the slab of Figure 1, detailing the arrangement of metallized adhesive strips;
- Figure 4 is a perspective view of an alternative embodiment of a polystyrene slab according to the invention, of the type with finishing tab;
- Figure 5 is a cross-sectional view along 5-5 of Figure 4.
La figure 1 représente de manière schématique un hourdis en polystyrène 1, de
type sans languette de finition, convenablement positionné entre deux poutrelles 2, ici
simplement esquissées (de manière classique, la section des poutrelles est bien souvent
en forme de Té à l'envers).FIG. 1 schematically represents a slab made of
Les poutrelles 2 correspondantes sont très généralement réalisées en béton
précontraint ou en treillis métallique. Elles sont agencées parallèlement les unes aux
autres, avec un entraxe adapté pour le positionnement des différents hourdis juxtaposés,
en vue de recevoir un lit de béton pour former notamment un plancher de vide sanitaire
ou de haut de sous-sol.The
Ce hourdis 1 a une conformation générale classique ; il est constitué d'un bloc 1'
de polystyrène expansé, dont le contour particulier est obtenu par découpe ou
directement par moulage.
Le bloc de polystyrène 1' est délimité par une face inférieure 3, une face supérieure 4,
deux côtés latéraux 5 destinés chacun à venir en regard d'une poutrelle 2, et deux côtés
d'extrémités 6 destinés à venir au contact de hourdis identiques juxtaposés.
Les deux côtés latéraux 5 comportent chacun une oreille longitudinale 7 aménagée dans
leur partie supérieure ; ces oreilles 7 forment un épaulement 8 apte à venir reposer sur les
talons des poutrelles 2 de réception.This
The polystyrene block 1 'is delimited by a
The two
Tel qu'on peut le voir en détail sur les figures 2 et 3, la face inférieure 3 du hourdis
1 comporte une sous-face rapportée 9, de nature originale, constituée ici - d'un complexe
formé d'une feuille externe 10 de matière métallisée associée à une couche d'isolation 11,
et - de deux bandes adhésives 12.As can be seen in detail in FIGS. 2 and 3, the
La feuille externe 10 est de préférence une feuille d'aluminium, dont l'épaisseur est
comprise entre 5 et 100 µm.The
La couche isolante 11 est constituée d'un film à bulles en polyéthylène. Cette
couche isolante 11 peut présenter une épaisseur comprise entre 2 et 60 mm ; elle est
réalisée à partir d'une feuille de polyéthylène de 20 à 300 µm d'épaisseur.The
Le complexe de protection 10, 11 de la sous-face 9 peut avantageusement être
préparé à l'avance par solidarisation de la feuille d'aluminium 10 avec le film à bulles 11 ;
il peut être conditionné en rouleau en vue de son transport ou de son stockage.The
Pour sa pose, le complexe protecteur 10, 11 est découpé selon des dimensions
adaptées pour recouvrir entièrement la face inférieure 3 du bloc de polystyrène 1'.
A cet effet, le complexe 10, 11 est découpé selon un rectangle dont la largeur correspond
à la distance entre les deux côtés d'extrémités 6 du bloc 1', tel qu'on peut l'observer sur la
figure 3. Ce complexe 10, 11 est encore découpé de sorte que sa longueur soit
supérieure à la distance entre les deux côtés latéraux 5 du bloc de polystyrène (figure 2),
pour que ledit complexe remonte sur environ la moitié de la hauteur sous oreille 7 desdits
côtés 5. Les retours 15 du complexe ainsi formé, tel que représenté en détail sur la figure
2, viennent chacun en regard d'une face latérale de poutrelle 2, et masquent ainsi toute la
partie du côté latéral 5 susceptible d'être dégradée par les rongeurs.For its installation, the
For this purpose, the complex 10, 11 is cut in a rectangle whose width corresponds to the distance between the two
La protection inférieure du bloc de polystyrène 1' est finalisée par la pose des
bandes adhésives métallisées 12, rapportées sur les angles formés par la face inférieure
3 du bloc de polystyrène 1' et les côtés d'extrémités 6, tel que représenté sur les figures 1
et 3.
Les bandes métallisées 12 sont fixées de manière à s'étendre pour partie sur les côtés
d'extrémités 6 et pour partie sur la face externe de la feuille métallisée 10.
On remarque encore sur la figure 1 que les deux extrémités 16 des bandes adhésives 12
se prolongent au niveau des deux côtés latéraux 5, pour optimiser le masquage de la
partie inférieure du bloc de polystyrène 1'.
Ces bandes adhésives 12 constituent ainsi le retour de la sous-face 9 pour les deux côtés
d'extrémités 6.The lower protection of the polystyrene block 1 'is finalized by the laying of the metallized
The metallized strips 12 are fixed so as to extend partly on the
It can still be seen in FIG. 1 that the two ends 16 of the
These
Les bandes adhésives 12 sont avantageusement réalisées en aluminium et leur épaisseur est comprise entre 5 et 100 µm.The adhesive strips 12 are advantageously made of aluminum and their thickness is between 5 and 100 μm.
L'utilisation de la feuille externe métallisée 10 et des bandes adhésives métallisées
12 forme une couche protectrice qui recouvre la face inférieure 3 du bloc de polystyrène,
et aussi les parties inférieures des côtés latéraux 5 et d'extrémités 6. Cette couche
externe de matière métallisée 10, 12 empêche les rongeurs de dégrader le bloc de
polystyrène ; elle assure également une isolation thermique renforcée, du fait notamment
de ses propriétés de thermoréflexion et d'effet pare-vapeur.The use of the metallized
La combinaison de la couche d'isolation 11 avec la feuille métallisée 10 augmente
la résistance de cette feuille métallisée 10, et améliore aussi les caractéristiques
d'isolation thermique des hourdis équipés. Le film à bulles 11 permet d'autre part
d'absorber les pressions ou les chocs soumis à la feuille métallisée 10, notamment
lorsqu'il est nécessaire d'utiliser des structures d'étayage sous-jacent pour le coulage du
lit de béton.The combination of the
La sous-face de protection 9 modifie de manière négligeable l'épaisseur et le poids
du hourdis équipé. Ces structures de hourdis sont en conséquence facilement
manipulables et, au final, limitent sensiblement le poids mort du plancher. The
Les différents éléments constitutifs de la sous-face 9 peuvent en outre très
facilement être solidarisés avec la face inférieure et les côtés du bloc de polystyrène, de
par leur nature et leurs caractéristiques de flexibilité.The various constituent elements of the
Les figures 4 et 5 montrent une variante de hourdis en polystyrène expansé 20,
conforme à l'invention, ici du type à languette de finition classique, c'est-à-dire
comprenant une languette latérale 21 destinée à venir se positionner sous les poutrelles
de réception de manière à réaliser une continuité esthétique et améliorer de manière
notable l'isolation tant thermique que phonique.Figures 4 and 5 show a variant of expanded
On retrouve sur les figures 4 et 5 une structure de hourdis classique, constituée
d'un bloc de polystyrène expansé 20' délimitée par une face de dessous 3, une face de
dessus 4, deux côtés d'extrémités 6 et deux côtés latéraux 5. Ces deux côtés latéraux 5
sont munis d'oreilles longitudinales 7, et l'un d'entre eux comporte la languette de finition
21, mentionnée ci-dessus, dans sa partie inférieure.FIGS. 4 and 5 show a conventional slab structure
of an expanded polystyrene block 20 'delimited by a
Le bloc de polystyrène 20' est également muni d'évidements d'allègement
classiques 25.The polystyrene block 20 'is also provided with
On remarque que la languette de finition 21 comporte une bordure longitudinale
libre 22 qui est conformée en dièdre, avec un angle ou une arête repérée 23 (figure 5).
Cette bordure longitudinale 22 est structurée pour épouser le côté latéral opposé 5 d'un
hourdis identique positionné en regard.Note that the finishing
Tel qu'on peut l'observer sur les figures 4 et 5, la face inférieure 3 du bloc de
polystyrène 20', et les parties inférieures des côtés latéraux 5 et d'extrémités 6 sont
recouvertes par une sous-face de protection 9 similaire à celle décrite précédemment en
relation avec les figures 1 à 3.As can be seen in FIGS. 4 and 5, the
Le complexe protecteur 10, 11 est ici découpé de sorte que sa longueur soit
suffisante pour former un retour 15 au niveau de la bordure longitudinale libre 22 de la
languette 21, et aussi sur le côté latéral opposé 5. Plus précisément, le retour 15 prévu au
niveau de la languette 21 présente une longueur suffisante pour remonter au moins
légèrement au-delà de l'arête 23 de la bordure longitudinale 22 en dièdre.The protective complex 10, 11 is here cut so that its length is
sufficient to form a
La protection est finalisée, tout comme dans le mode de réalisation précédent, par
l'application de bandes adhésives métallisées 12 (de préférence en aluminium), sur la
longueur des angles formés par les côtés d'extrémités 6 et par la face inférieure 3 du bloc
de polystyrène 20'.The protection is finalized, as in the previous embodiment, by
the application of metallized adhesive strips 12 (preferably made of aluminum), on the
length of the angles formed by the
Cette structure de hourdis 20 à languette 21, ainsi équipée, est particulièrement
bien protégée contre les dégradations liées aux rongeurs et présente des caractéristiques
d'isolation thermique et phonique renforcées. De tels hourdis 20 sont d'autre part très
facilement manipulables du fait de l'influence toujours négligeable de la sous-face 9 sur
leur épaisseur et leur poids. This
En fonction des caractéristiques d'isolation recherchées, la sous-face de protection
9 pourra tout-à-fait comprendre une structure isolante constituée d'une superposition de
plusieurs films à bulles.Depending on the desired insulation characteristics, the underside of
D'autre part, pour des applications particulières, la couche d'isolation pourra être
supprimée, la sous-face de protection étant alors constituée uniquement d'une feuille de
matière métallisée solidarisée avec la face inférieure 3 du bloc de polystyrène équipé,
associée éventuellement à des extensions périphériques, par exemple en forme de
bandes adhésives métallisées, permettant de recouvrir la partie inférieure des côtés
latéraux et d'extrémités de ce bloc.On the other hand, for particular applications, the insulation layer may be
removed, the protective underside then being made of only one sheet of
metallized material secured to the
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312821 | 2003-10-31 | ||
FR0312821A FR2861768B1 (en) | 2003-10-31 | 2003-10-31 | POLYSTYRENE HOURDIS AND PROCESS FOR PRODUCING THE SAME |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1528172A1 true EP1528172A1 (en) | 2005-05-04 |
EP1528172B1 EP1528172B1 (en) | 2006-07-26 |
Family
ID=34400896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04300749A Not-in-force EP1528172B1 (en) | 2003-10-31 | 2004-10-29 | Polystyrene flooring slabs and their method of manufacture |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1528172B1 (en) |
AT (1) | ATE334271T1 (en) |
DE (1) | DE602004001651D1 (en) |
FR (1) | FR2861768B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010922A1 (en) | 2007-03-05 | 2008-09-11 | Bautevent Gmbh | Concrete floor construction |
EP1997974A1 (en) | 2007-05-31 | 2008-12-03 | Ateliers et Materiaux de la Nive | Construction element such as a filling member |
GB2578087A (en) * | 2018-08-29 | 2020-04-22 | Expanding Solutions Ltd | Floor constructions, and insulating panels for floor constructions |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2352125A1 (en) * | 1976-05-17 | 1977-12-16 | Rech Etudes Tech | Rough casting for flooring - has superimposed layers alternately thin and thick resting on shoulders of beams |
FR2432578A2 (en) * | 1978-08-03 | 1980-02-29 | Rhinolith | Composite prefabricated floor panel - has concrete beam and slab formed with fire-resistant soffit board and cellular plastics void formers |
FR2606323A1 (en) * | 1986-07-08 | 1988-05-13 | Valeo | Component made of cellular plastic, especially a structural component such as a cavity-wall block, having improved flexural and tear strength and method for obtaining such a component |
GB2348850A (en) * | 1999-04-16 | 2000-10-18 | Airisol | Acoustic and thermal insulating material |
-
2003
- 2003-10-31 FR FR0312821A patent/FR2861768B1/en not_active Expired - Fee Related
-
2004
- 2004-10-29 DE DE602004001651T patent/DE602004001651D1/en active Active
- 2004-10-29 AT AT04300749T patent/ATE334271T1/en not_active IP Right Cessation
- 2004-10-29 EP EP04300749A patent/EP1528172B1/en not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2352125A1 (en) * | 1976-05-17 | 1977-12-16 | Rech Etudes Tech | Rough casting for flooring - has superimposed layers alternately thin and thick resting on shoulders of beams |
FR2432578A2 (en) * | 1978-08-03 | 1980-02-29 | Rhinolith | Composite prefabricated floor panel - has concrete beam and slab formed with fire-resistant soffit board and cellular plastics void formers |
FR2606323A1 (en) * | 1986-07-08 | 1988-05-13 | Valeo | Component made of cellular plastic, especially a structural component such as a cavity-wall block, having improved flexural and tear strength and method for obtaining such a component |
GB2348850A (en) * | 1999-04-16 | 2000-10-18 | Airisol | Acoustic and thermal insulating material |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010922A1 (en) | 2007-03-05 | 2008-09-11 | Bautevent Gmbh | Concrete floor construction |
EP1997974A1 (en) | 2007-05-31 | 2008-12-03 | Ateliers et Materiaux de la Nive | Construction element such as a filling member |
FR2916775A1 (en) * | 2007-05-31 | 2008-12-05 | Materiaux De La Nive Sa Atel | BUILDING ELEMENT SUCH AS AN HOURDIS |
GB2578087A (en) * | 2018-08-29 | 2020-04-22 | Expanding Solutions Ltd | Floor constructions, and insulating panels for floor constructions |
Also Published As
Publication number | Publication date |
---|---|
DE602004001651D1 (en) | 2006-09-07 |
FR2861768A1 (en) | 2005-05-06 |
EP1528172B1 (en) | 2006-07-26 |
ATE334271T1 (en) | 2006-08-15 |
FR2861768B1 (en) | 2006-02-03 |
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