EP2218848A1 - Lost shuttering block and module for the assembly of such a block - Google Patents

Lost shuttering block and module for the assembly of such a block Download PDF

Info

Publication number
EP2218848A1
EP2218848A1 EP10153132A EP10153132A EP2218848A1 EP 2218848 A1 EP2218848 A1 EP 2218848A1 EP 10153132 A EP10153132 A EP 10153132A EP 10153132 A EP10153132 A EP 10153132A EP 2218848 A1 EP2218848 A1 EP 2218848A1
Authority
EP
European Patent Office
Prior art keywords
module
orifices
concrete
panel
rectangular panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10153132A
Other languages
German (de)
French (fr)
Inventor
Philippe Perrot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tout pour l'Eau - Prat
Original Assignee
Tout pour l'Eau - Prat
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 Tout pour l'Eau - Prat filed Critical Tout pour l'Eau - Prat
Publication of EP2218848A1 publication Critical patent/EP2218848A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/0075—Swimming or splash baths or pools made of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8623—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms

Definitions

  • the present invention relates to the technical field of masonry concrete pool walls and their finish and coating.
  • each block of lost formwork B by the assembly of two identical modules M of plastic.
  • Each module then comprises a rectangular panel P having a front face P1 and a reverse side P2 and a series of half-spacers e distributed on the back side of the panel extending perpendicularly to the panel.
  • each half-spacer comprises at its distal end a male and / or female interlocking element intended to engage in a complementary interlocking element of a half-spacer corresponding.
  • the irreversibility of the assembly is obtained by welding S of the two half-spacers at the interlocking elements.
  • Such a lost formwork block has the disadvantage of imposing a weld at each junction between the half-spacers, which is particularly expensive.
  • walls made using lost formwork blocks as described in the prior art can not, or difficultly, be tiled because it is excessively difficult to succeed in taking tiles, for example ceramic as it is regularly used in the field of swimming pools, on the plastic walls of modules making the formwork lost.
  • the proposed module is characterized in that the rectangular panel is perforated with orifices opening right through on each of the front and back sides of the rectangular panel and distributed uniformly over the entire surface of said panel.
  • the procuration of orifices opening through the rectangular panel of the module of the invention makes it possible, when the module is assembled by its assembly members to another module, to obtain a lost formwork block which on one of its faces allows during the casting of concrete to make a wall wall, for example pool, the passage of a small amount of concrete through the holes provided in the panel of the module of the invention, the concrete through allowing the realization of a classic tile on the plastic wall of the perforated panel of the shuttering block.
  • the flow of concrete through the orifices makes it possible to achieve a blocking effect of the module in the concrete, which reduces the thrust forces of the concrete on the panels of the formwork block.
  • the concrete blocks the wall of the block and thus avoids problems of expansion and a separation of the block and the concrete.
  • the orifices cover more than 50% of the total surface of the rectangular panel. So, a quantity of Sufficient concrete "transpires" through the orifices and allows proper smoothing of the concrete to achieve a good tiling.
  • the orifices have a substantially oblong shape.
  • the orifices have a width less than the thickness of the rectangular panel.
  • the flow of concrete during casting is very light and retained while being effective. This avoids waste of concrete.
  • the width of the orifices is variable over the thickness of the rectangular panel. According to this characteristic, the flow of the concrete through the orifices of the panel is even better controlled.
  • the width of the orifices is variable decreasingly and then increasing from the reverse side to the front face of the rectangular panel.
  • it controls on the one hand the flow of concrete in the orifices and the blocking effect of the module is promoted and reinforced in the concrete wall formed, the concrete making a hooking of the rectangular panel in the wall.
  • edges of the orifices are chamfered so as to further promote the blocking effect of the module in the concrete during the casting of concrete and after drying.
  • a module according to the invention can be made of any suitable material and preferably, in order to reduce its weight and its manufacturing cost, it will be made of injected plastic such as for example polypropylene or polyethylene.
  • the invention also relates to a lost formwork block obtained by assembling two lost formwork modules, at least one of which conforms to the module according to the invention.
  • a lost formwork block according to the invention as illustrated in FIG. figure 3 and designated as a whole by the reference 1 has a generally parallelepipedal general shape.
  • the lost formwork block 1 is intended to be associated with other identical blocks to define, for example, the formwork of a vertical wall of a swimming pool.
  • the lost formwork blocks 1 are then nested in each other vertically and laterally depending on the height and the desired wall length.
  • Each shuttering block 1 is obtained by assembling two modules 2, 3 of injected plastic material.
  • Each module 2, 3 comprises a rectangular panel 4 which has a front face 5 and a back face 6.
  • each panel 4 comprises a series of half-spacers 7 distributed on the back side 5 of each of the panels 4 extending perpendicularly to the panel 4.
  • Each half-spacer 7 has at its distal end, at the opposite the panel 3, a male and / or female interlocking element (not shown) intended to engage in a complementary interlocking element of a corresponding half-spacer 7 during the assembly of two modules 2, 3 .
  • the half-spacers 7 are arranged in four parallel rows on the upper edge of the panels 4 and the half-spacers of the same row alternately have at their distal ends a male configuration and a female configuration.
  • each half-spacer 7 preferably comprises, as proposed in the patent application no. FR 2,889,550 of the Applicant, a proximal bore 8 which is preferably intended to receive an assembly screw and which opens at the front face 5 of the panel 4.
  • the proximal bore 8 preferably does not extend over the entire length of the half-spacer 7 so that it is non-traversing.
  • each half-spacer 7 also has a not shown distal bore which is coaxial with the proximal bore 8 and which opens out at the distal end of each half-spacer 7. The distal bore does not open into the distal bore.
  • each assembly screw will furthermore have beyond its unthreaded portion a self-tapping thread.
  • the lost formwork block 1 After the installation of all the assembly screws, the lost formwork block 1 thus obtained has a mechanical strength. particularly important and is therefore perfectly adapted to undergo the internal pressure exerted by the concrete during casting.
  • a lost formwork block 1 For the realization of a lost formwork block 1 according to the present invention, it is necessary to implement two formwork modules 2, 3 as described above, and of which at least one, which in the example of FIGS. Fig. 3 to 6 is the module 3, is perforated to 9 concrete seepage orifices opening from side to side on each of the front faces 5 and back 6 of the rectangular panel 4 and distributed over the entire surface of said panel 4 of the module 3.
  • These holes 9 are intended to allow the concrete to flow or "seep" through the panel 4 of the formwork module 3 during the pouring of the concrete inside the formwork block 1 so as to allow the realization of a tile finish directly on the front face of the panel 4 of the module 3, as shown on the Fig. 6 .
  • Such a module 3 provided with orifices 9 is particularly advantageous for producing concrete pool walls whose internal lining of the basin is not made as often of a plastic film, generally called “liner” or painting, but a tile or mosaic. Indeed, the orifices 9 allow the passage, during casting of the concrete, a small proportion of liquid concrete through the panel 4 of the module 3, which can then be spread on the front face 5 of the module so as to allow the installation of tile or mosaic tiles.
  • the orifices 9 have a substantially oblong shape and cover a cumulative surface representing more than 50% of the total surface of the panel 4 of the module 3, and preferably between 50 and 75% of the surface of the panel 4.
  • the oblong shape of the orifices 9 may be straight but not necessarily.
  • the orifices 9 formed around the bores 8 for inserting the assembly screws into the half-spacers 7 may be, as shown in FIGS. Fig. 3 to 6 , in a circular arc, if necessary concentric with the bore 8.
  • the orifices 9 allow only a slight amount of concrete seepage or effusion through the panel 4 of the module 3 during casting, and not a pure and simple flow of concrete concrete through the panel 4.
  • the concept of oozing or effusion of concrete through the orifices 9 of the concept of flow is meant by oozing or effusion concrete that the concrete tends to cross the panel 4 of the module 3 through the orifices 9 during casting in the shuttering block 1 but fails to flow through these orifices, despite the pressure force during casting because of its viscosity and the small width of the orifices 9.
  • only concrete cords are formed through the orifices 9 thickened on the front face 5 of the panel 4 of the module 3.
  • the width I of the orifices 9 must be chosen to allow seepage without flow.
  • the width I is chosen to be smaller than the thickness e of the rectangular panel 4 of the module 3.
  • the width I of the orifices 9 is also advantageously variable over the thickness e of the rectangular panel 4.
  • This variable nature of the width I provides, in addition to better control of the seepage of the concrete through the orifices 9 during casting in the shuttering block, a locking effect of the module 3 in the concrete wall formed using the shuttering block 1 of the invention, this locking effect further reinforcing the assembly of the two modules 2, 3 of the block of shuttering 1 and the anchoring of the module 3 in the formed concrete wall.
  • the anchoring and blocking effect of the module 3 in the PB concrete wall formed is also improved when, as shown in detail in FIG. figure 5 , the width I of the orifices 9 is decreasingly variable and then increasing from the back side 6 to the front face 5 of the rectangular panel 4 and that, also preferably, the edges 10 of the orifices 9 are chamfered.
  • Such a conformation of the orifices 9 on the thickness of the panel 4 of the module 3 of the invention causes the creation during the seepage of concrete through the orifices 9 of a concrete tenon 11 at the front face 5 of the panel 4 .
  • This pin then exerts when the concrete has a tensile force against the concrete wall formed between the modules 2, 3 of the shuttering unit, while providing adequate support to said front face 5 to enable tiling with tiles C the latter as represented on the Fig. 6 .
  • the lost formwork block 1 as previously described and illustrated in FIG. Fig. 1 presents a straight form more particularly intended for the realization of straight wall.
  • the modules 2, 3 constituting this block can be used to produce a curved or curved lost formwork block.
  • the modules 2, 3 represented on the Fig. 3 to 6 are different and that the formwork block of the invention comprises only one perforated module 3 according to the invention, it is entirely possible to produce the formwork block 1 with two perforated modules 3 identical to the module 3 shown without leaving the of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The module (3) has a rectangular panel with a recto face and a reverse face, and assembling units for assembling the module with another module, where the module is made of plastic material. The assembling units are placed on the reverse face of the rectangular panel and complementary to assembly units of the latter module. The panel is vented with orifices (9) that respectively open on the recto face and the reverse face of the panel. The orifices are uniformly distributed on a surface of the panel.

Description

La présente invention concerne le domaine technique de la maçonnerie de parois de piscines en béton et de leur finition et revêtement.The present invention relates to the technical field of masonry concrete pool walls and their finish and coating.

Il est connu de réaliser des parois de piscines en béton armé en utilisant des blocs de coffrage perdu tels que décrits dans la demande de brevet FR 2 790 777 . Ainsi, il est proposé de réaliser, comme représenté sur les fig. 1 et 2 , chaque bloc de coffrage perdu B par l'assemblage de deux modules M identiques en matière plastique. Chaque module comprend alors un panneau rectangulaire P présentant une face recto P1 et une face verso P2 et une série de demi-entretoises e réparties sur la face verso du panneau en s'étendant perpendiculairement au panneau. Afin de permettre un assemblage des deux modules entre eux, chaque demi-entretoise comprend au niveau de son extrémité distale un élément d'emboîtement mâle et/ou femelle destiné à s'engager dans un élément d'emboîtement complémentaire d'une demi-entretoise correspondante. Enfin, l'irréversibilité de l'assemblage est obtenue par soudure S des deux demi-entretoises au niveau des éléments d'emboîtement.It is known to produce reinforced concrete pool walls using lost formwork blocks as described in the patent application. FR 2,790,777 . Thus, it is proposed to carry out, as shown on the Fig. 1 and 2 , each block of lost formwork B by the assembly of two identical modules M of plastic. Each module then comprises a rectangular panel P having a front face P1 and a reverse side P2 and a series of half-spacers e distributed on the back side of the panel extending perpendicularly to the panel. In order to allow an assembly of the two modules together, each half-spacer comprises at its distal end a male and / or female interlocking element intended to engage in a complementary interlocking element of a half-spacer corresponding. Finally, the irreversibility of the assembly is obtained by welding S of the two half-spacers at the interlocking elements.

Un tel bloc de coffrage perdu présente l'inconvénient d'imposer une soudure au niveau de chaque jonction entre les demi-entretoises, ce qui est particulièrement coûteux.Such a lost formwork block has the disadvantage of imposing a weld at each junction between the half-spacers, which is particularly expensive.

Pour palier ce problème, la demande de brevet FR 2 889 550 au nom de la Demanderesse a proposé un mode de jonction des modules de coffrage par vissage.To overcome this problem, the patent application FR 2,889,550 on behalf of the Applicant has proposed a method of joining the formwork modules by screwing.

Cependant, les parois fabriquées à l'aide de blocs de coffrage perdu tels que décrit dans l'art antérieur ne peuvent pas, ou bien difficilement, être carrelées car il est excessivement difficile de réussir la prise de carreaux, par exemple de céramique comme il est régulièrement utilisé dans le domaine des piscines, sur les parois de plastique des modules réalisant le coffrage perdu.However, walls made using lost formwork blocks as described in the prior art can not, or difficultly, be tiled because it is excessively difficult to succeed in taking tiles, for example ceramic as it is regularly used in the field of swimming pools, on the plastic walls of modules making the formwork lost.

Ainsi, il est apparu le besoin d'un nouveau type de module pour la réalisation d'un bloc de coffrage dont la mise en oeuvre garantisse l'opportunité d'un carrelage aisé d'au moins la paroi interne d'une piscine en béton dont les murs sont formés à l'aide de tels blocs de coffrage perdu.Thus, it appeared the need for a new type of module for the realization of a formwork block whose implementation guarantees the opportunity for easy tiling of at least the inner wall of a concrete pool whose walls are formed using such lost formwork blocks.

Afin d'atteindre cet objectif, l'invention concerne un module destiné à être assemblé avec un autre module pour former un bloc de coffrage perdu pour la réalisation d'une paroi de piscine en béton, module comprenant :

  • ■ un panneau rectangulaire présentant une face recto et une face verso,
  • ■ des organes d'assemblage à un autre dit module, disposés sur la face verso du panneau rectangulaire et étant complémentaires d'organes d'assemblage de l'autre dit module.
In order to achieve this objective, the invention relates to a module intended to be assembled with another module to form a lost formwork block for the realization of a concrete pool wall, module comprising:
  • ■ a rectangular panel with a front face and a back side,
  • ■ assembly members to another said module, arranged on the reverse side of the rectangular panel and being complementary to assembly members of the other said module.

Conformément à la présente invention, le module proposé se caractérise par le fait que le panneau rectangulaire est ajouré d'orifices débouchant de part en part sur chacune des faces recto et verso du panneau rectangulaire et répartis de façon uniforme sur toute la surface dudit panneau.According to the present invention, the proposed module is characterized in that the rectangular panel is perforated with orifices opening right through on each of the front and back sides of the rectangular panel and distributed uniformly over the entire surface of said panel.

La procuration d'orifices débouchant au travers du panneau rectangulaire du module de l'invention permet d'obtenir, lorsque le module est assemblé par ses organes d'assemblage à un autre module, un bloc de coffrage perdu qui sur une de ses faces permet lors de la coulée de béton pour réaliser une paroi murale, par exemple de piscine, la traversée d'une légère quantité de béton au travers des orifices procurés dans le panneau du module de l'invention, ce béton traversant permettant la réalisation d'un carrelage classique sur la paroi plastique du panneau perforé du bloc de coffrage.The procuration of orifices opening through the rectangular panel of the module of the invention makes it possible, when the module is assembled by its assembly members to another module, to obtain a lost formwork block which on one of its faces allows during the casting of concrete to make a wall wall, for example pool, the passage of a small amount of concrete through the holes provided in the panel of the module of the invention, the concrete through allowing the realization of a classic tile on the plastic wall of the perforated panel of the shuttering block.

De plus, l'écoulement de béton au travers des orifices permet de réaliser un effet de blocage du module dans le béton, ce qui allège les efforts de poussée du béton sur les panneaux du bloc de coffrage. Le béton bloque la paroi du bloc et évite ainsi des problèmes de dilatation et une désolidarisation du bloc et du béton.In addition, the flow of concrete through the orifices makes it possible to achieve a blocking effect of the module in the concrete, which reduces the thrust forces of the concrete on the panels of the formwork block. The concrete blocks the wall of the block and thus avoids problems of expansion and a separation of the block and the concrete.

Selon une caractéristique de l'invention, les orifices couvrent plus de 50 % de la surface totale du panneau rectangulaire. Ainsi, une quantité de béton suffisante "transpire" au travers des orifices et permet un lissage approprié du béton pour réaliser un carrelage de bonne facture.According to one characteristic of the invention, the orifices cover more than 50% of the total surface of the rectangular panel. So, a quantity of Sufficient concrete "transpires" through the orifices and allows proper smoothing of the concrete to achieve a good tiling.

Selon une autre caractéristique de l'invention, les orifices présentent une forme sensiblement oblongue.According to another characteristic of the invention, the orifices have a substantially oblong shape.

De manière préférée, les orifices présentent une largeur inférieure à l'épaisseur du panneau rectangulaire. Ainsi, l'écoulement du béton lors de la coulée est très léger et retenu tout en étant effectif. On évite ainsi les gaspillages de béton.Preferably, the orifices have a width less than the thickness of the rectangular panel. Thus, the flow of concrete during casting is very light and retained while being effective. This avoids waste of concrete.

Selon une caractéristique de l'invention, la largeur des orifices est variable sur l'épaisseur du panneau rectangulaire. Selon cette caractéristique, on maîtrise encore mieux l'écoulement du béton au travers des orifices du panneauAccording to a characteristic of the invention, the width of the orifices is variable over the thickness of the rectangular panel. According to this characteristic, the flow of the concrete through the orifices of the panel is even better controlled.

De façon préférée, la largeur des orifices est variable de façon décroissante puis croissante depuis la face verso vers la face recto du panneau rectangulaire. Ainsi, on maîtrise d'une part l'écoulement du béton dans les orifices et l'on favorise et renforce l'effet de blocage du module dans la paroi de béton formée, le béton réalisant un crochetage du panneau rectangulaire dans la paroi.Preferably, the width of the orifices is variable decreasingly and then increasing from the reverse side to the front face of the rectangular panel. Thus, it controls on the one hand the flow of concrete in the orifices and the blocking effect of the module is promoted and reinforced in the concrete wall formed, the concrete making a hooking of the rectangular panel in the wall.

De façon encore préférée, les bords des orifices sont chanfreinés de manière à favoriser encore l'effet de blocage du module dans le béton lors de la coulée de béton et après séchage.More preferably, the edges of the orifices are chamfered so as to further promote the blocking effect of the module in the concrete during the casting of concrete and after drying.

Un module selon l'invention peut être réalisé en tout matériau approprié et de manière préférée, afin de réduire son poids et son coût de fabrication, il sera réalisé en matière plastique injectée telle que par exemple en polypropylène ou polyéthylène.A module according to the invention can be made of any suitable material and preferably, in order to reduce its weight and its manufacturing cost, it will be made of injected plastic such as for example polypropylene or polyethylene.

Enfin, l'invention concerne également un bloc de coffrage perdu obtenu par l'assemblage de deux modules de coffrage perdu dont au moins un est conforme au module selon l'invention.Finally, the invention also relates to a lost formwork block obtained by assembling two lost formwork modules, at least one of which conforms to the module according to the invention.

Par ailleurs, diverses autres caractéristiques de l'invention ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemples non limitatifs, une forme de réalisation préférée d'un module de coffrage perdu selon l'invention et d'un bloc de coffrage comportant un tel module pour la réalisation de parois de piscines.

  • La fig. 1 est une coupe transversale d'un bloc de coffrage perdu connu de l'art antérieur ;
  • La fig. 2 est une vue en perspective du bloc de coffrage perdu illustré à la fig. 1 ;
  • La fig. 3 est une vue en perspective d'un bloc de coffrage conforme à la présente invention, comportant au moins un module de coffrage selon l'invention, muni d'orifices de suintement de béton ;
  • La fig. 4 est une vue en coupe transversale partielle d'un bloc de coffrage selon la présente invention rempli de béton ;
  • La fig. 5 est une vue de détail de la fig. 4 représentant une variante préférée de réalisation des orifices de suintement de béton d'un module de coffrage selon l'invention ;
  • La fig. 6 est une vue en perspective partielle d'une paroi murale de béton réalisée à l'aide d'un bloc de coffrage selon l'invention et carrelée directement sur la face externe du module de coffrage selon l'invention dudit bloc de coffrage.
Furthermore, various other features of the invention will emerge from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, a preferred embodiment a formwork module lost according to the invention and a formwork block comprising such a module for the realization of pool walls.
  • The Fig. 1 is a cross section of a lost formwork block known from the prior art;
  • The Fig. 2 is a perspective view of the lost formwork block shown at Fig. 1 ;
  • The Fig. 3 is a perspective view of a formwork block according to the present invention, comprising at least one formwork module according to the invention, provided with concrete seepage orifices;
  • The Fig. 4 is a partial cross-sectional view of a formwork block according to the present invention filled with concrete;
  • The Fig. 5 is a detail view of the Fig. 4 representing a preferred alternative embodiment of the concrete seepage orifices of a formwork module according to the invention;
  • The Fig. 6 is a partial perspective view of a concrete wall wall made using a formwork block according to the invention and tiled directly on the outer face of the formwork module according to the invention of said formwork block.

Un bloc de coffrage perdu selon l'invention, tel qu'illustré à la figure 3 et désigné dans son ensemble par la référence 1 présente une forme générale sensiblement parallélépipédique. Le bloc de coffrage perdu 1 est destiné à être associé avec d'autres blocs identiques pour définir par exemple le coffrage d'une paroi verticale de piscine. Les blocs de coffrage perdu 1 sont alors emboîtés les uns dans les autres verticalement et latéralement en fonction de la hauteur et de la longueur de paroi souhaitée.A lost formwork block according to the invention, as illustrated in FIG. figure 3 and designated as a whole by the reference 1 has a generally parallelepipedal general shape. The lost formwork block 1 is intended to be associated with other identical blocks to define, for example, the formwork of a vertical wall of a swimming pool. The lost formwork blocks 1 are then nested in each other vertically and laterally depending on the height and the desired wall length.

Chaque bloc de coffrage 1 est obtenu par l'assemblage de deux modules 2, 3 en matière plastique injectée. Chaque module 2, 3 comprend un panneau rectangulaire 4 qui possède une face recto 5 et une face verso 6. Each shuttering block 1 is obtained by assembling two modules 2, 3 of injected plastic material. Each module 2, 3 comprises a rectangular panel 4 which has a front face 5 and a back face 6.

Afin de maintenir à distance les panneaux 4 des modules 2, 3 constitutifs du bloc de coffrage perdu 1 pour définir le volume de réception du béton, chaque panneau 4 comprend une série de demi-entretoises 7 réparties sur la face verso 5 de chacun des panneaux 4 en s'étendant perpendiculairement au panneau 4. Chaque demi-entretoise 7 possède au niveau de son extrémité distale, à l'opposé du panneau 3, un élément d'emboîtement mâle et/ou femelle (non représenté) destiné à s'engager dans un élément d'emboîtement complémentaire d'une demi-entretoise 7 correspondante lors de l'assemblage de deux modules 2, 3. Selon l'exemple illustré, les demi-entretoises 7 sont disposées en quatre rangs parallèles au bord supérieur des panneaux 4 et les demi-entretoises d'un même rang présentent alternativement au niveau de leurs extrémités distales une conformation mâle et une conformation femelle.In order to keep at a distance the panels 4 of the modules 2, 3 constituting the lost formwork block 1 to define the reception volume concrete, each panel 4 comprises a series of half-spacers 7 distributed on the back side 5 of each of the panels 4 extending perpendicularly to the panel 4. Each half-spacer 7 has at its distal end, at the opposite the panel 3, a male and / or female interlocking element (not shown) intended to engage in a complementary interlocking element of a corresponding half-spacer 7 during the assembly of two modules 2, 3 . in the example shown, the half-spacers 7 are arranged in four parallel rows on the upper edge of the panels 4 and the half-spacers of the same row alternately have at their distal ends a male configuration and a female configuration.

Afin de permettre un assemblage des modules 2, 3 entre eux, chaque demi-entretoise 7 comprend de préférence, comme proposé dans la demande de brevet n° FR 2 889 550 de la Demanderesse, un alésage proximal 8 qui est, de préférence destiné à recevoir une vis d'assemblage et qui débouche au niveau de la face recto 5 du panneau 4. L'alésage proximal 8 ne s'étend pas de préférence sur toute la longueur de la demi-entretoise 7 de sorte qu'il est non traversant. De manière préférée, chaque demi-entretoise 7 possède également un alésage distal non représenté qui est coaxial avec l'alésage proximal 8 et qui débouche au niveau de l'extrémité distale de chaque demi-entretoise 7. L'alésage distal ne débouche pas dans l'alésage proximal 7 de sorte que les deux alésages proximal et distal sont séparés par une zone pleine. Les demi-entretoises 7 des deux modules 2, 3 sont emboîtées les unes dans les autres au niveau de leur extrémité distale puis il est engagé une vis d'assemblage au niveau de chacun des alésages proximaux 8 de la face recto 5 du module 3. De préférence, chaque vis d'assemblage présentera de plus au-delà de sa partie non filetée un filet autotaraudeur.In order to allow the modules 2, 3 to be assembled together, each half-spacer 7 preferably comprises, as proposed in the patent application no. FR 2,889,550 of the Applicant, a proximal bore 8 which is preferably intended to receive an assembly screw and which opens at the front face 5 of the panel 4. The proximal bore 8 preferably does not extend over the entire length of the half-spacer 7 so that it is non-traversing. Preferably, each half-spacer 7 also has a not shown distal bore which is coaxial with the proximal bore 8 and which opens out at the distal end of each half-spacer 7. The distal bore does not open into the distal bore. the proximal bore 7 so that the two proximal and distal bores are separated by a solid zone. The half-spacers 7 of the two modules 2, 3 are nested one inside the other at their distal end, then an assembly screw is engaged at each of the proximal bores 8 of the front face 5 of the module 3. Preferably, each assembly screw will furthermore have beyond its unthreaded portion a self-tapping thread.

Après la mise en place de toutes les vis d'assemblage, le bloc de coffrage perdu 1 ainsi obtenu présente une résistance mécanique particulièrement importante et se trouve donc parfaitement adapté pour subir la pression interne exercée par le béton en cours de coulée.After the installation of all the assembly screws, the lost formwork block 1 thus obtained has a mechanical strength. particularly important and is therefore perfectly adapted to undergo the internal pressure exerted by the concrete during casting.

Pour la réalisation d'un bloc de coffrage perdu 1 conforme à la présente invention, il convient de mettre en oeuvre deux modules de coffrage 2, 3 tels que décrits précédemment, et dont au moins un, qui dans l'exemple des fig. 3 à 6 est le module 3, est ajouré d'orifices 9 de suintement de béton débouchant de part en part sur chacune des faces recto 5 et verso 6 du panneau rectangulaire 4 et répartis sur toute la surface dudit panneau 4 du module 3. Ces orifices 9 sont destinés à laisser s'écouler ou "suinter" le béton au travers du panneau 4 du module de coffrage 3 lors de la coulée du béton à l'intérieur du bloc de coffrage 1 de manière à permettre la réalisation d'une finition de carrelage directement sur la face recto du panneau 4 du module 3, comme représenté sur la fig. 6 . For the realization of a lost formwork block 1 according to the present invention, it is necessary to implement two formwork modules 2, 3 as described above, and of which at least one, which in the example of FIGS. Fig. 3 to 6 is the module 3, is perforated to 9 concrete seepage orifices opening from side to side on each of the front faces 5 and back 6 of the rectangular panel 4 and distributed over the entire surface of said panel 4 of the module 3. These holes 9 are intended to allow the concrete to flow or "seep" through the panel 4 of the formwork module 3 during the pouring of the concrete inside the formwork block 1 so as to allow the realization of a tile finish directly on the front face of the panel 4 of the module 3, as shown on the Fig. 6 .

Un tel module 3 muni d'orifices 9 s'avère tout particulièrement avantageux pour la réalisation de parois de piscines en béton dont le revêtement interne du bassin n'est pas constitué comme fréquemment d'un film plastique, généralement appelé "liner" ou de peinture, mais d'un carrelage ou de mosaïque. En effet, les orifices 9 permettent le passage, lors de la coulée du béton, d'une petite proportion de béton liquide au travers du panneau 4 du module 3, qu'il est ensuite possible d'étaler sur la face recto 5 du module de manière à autoriser la pose de carreaux de carrelage ou de mosaïque.Such a module 3 provided with orifices 9 is particularly advantageous for producing concrete pool walls whose internal lining of the basin is not made as often of a plastic film, generally called "liner" or painting, but a tile or mosaic. Indeed, the orifices 9 allow the passage, during casting of the concrete, a small proportion of liquid concrete through the panel 4 of the module 3, which can then be spread on the front face 5 of the module so as to allow the installation of tile or mosaic tiles.

De façon préférée selon l'invention et comme représenté sur les fig. 3 à 6 , les orifices 9 présentent une forme sensiblement oblongue et couvrent une surface cumulée représentant plus de 50 % de la surface totale du panneau 4 du module 3, et de préférence entre 50 et 75 % de la surface du panneau 4. In a preferred manner according to the invention and as represented on the Fig. 3 to 6 , the orifices 9 have a substantially oblong shape and cover a cumulative surface representing more than 50% of the total surface of the panel 4 of the module 3, and preferably between 50 and 75% of the surface of the panel 4.

Il est en effet important que le béton qui traverse toute la surface du panneau 4 du module 3 lors de la coulée soit réparti de manière sensiblement uniforme sur toute la face recto 5 du module, de manière à former une couche de béton en surépaisseur sur ladite face qui soit uniforme. Ceci évite le besoin d'un étalement trop important de ladite couche de béton pour couvrir l'ensemble du panneau 4 sur sa face recto 5, et ainsi favorise une bonne prise du carrelage lors de sa pose ultérieure.It is indeed important that the concrete which crosses the entire surface of the panel 4 of the module 3 during casting is distributed substantially uniformly over the entire front face 5 of the module, so as to form a thickened concrete layer on said face that is uniform. This avoids the need for excessive spreading of said concrete layer to cover the entire panel 4 on its front face 5, and thus promotes a good grip of the tile during its subsequent laying.

La forme oblongue des orifices 9 peut être droite mais pas nécessairement. En particulier, les orifices 9 formés autour des alésages 8 d'insertion des vis d'assemblages dans les demi-entretoises 7 peuvent être, comme représenté sur les fig. 3 à 6 , en arc de cercle, le cas échéant concentriques de l'alésage 8. The oblong shape of the orifices 9 may be straight but not necessarily. In particular, the orifices 9 formed around the bores 8 for inserting the assembly screws into the half-spacers 7 may be, as shown in FIGS. Fig. 3 to 6 , in a circular arc, if necessary concentric with the bore 8.

Selon l'invention, il est important mais non essentiel cependant que les orifices 9 permettent uniquement un suintement ou épanchement d'une légère quantité de béton au travers du panneau 4 du module 3 lors de la coulée, et non un écoulement pur et simple du béton au travers du panneau 4. On distingue en effet dans le cadre de l'invention la notion de suintement ou épanchement de béton par les orifices 9 de la notion d'écoulement. Ainsi, on entend ici par suintement ou épanchement de béton que le béton tend à traverser le panneau 4 du module 3 par les orifices 9 lors de la coulée dans le bloc de coffrage 1 mais ne parvient pas à couler par ces orifices, malgré l'effort de pression lors de la coulée du fait de sa viscosité et de la faible largeur des orifices 9. Ainsi seuls des cordons de béton se forment au travers des orifices 9 en surépaisseur de la face recto 5 du panneau 4 du module 3. According to the invention, it is important but not essential that the orifices 9 allow only a slight amount of concrete seepage or effusion through the panel 4 of the module 3 during casting, and not a pure and simple flow of concrete concrete through the panel 4. There is indeed in the context of the invention the concept of oozing or effusion of concrete through the orifices 9 of the concept of flow. Thus, here is meant by oozing or effusion concrete that the concrete tends to cross the panel 4 of the module 3 through the orifices 9 during casting in the shuttering block 1 but fails to flow through these orifices, despite the pressure force during casting because of its viscosity and the small width of the orifices 9. Thus only concrete cords are formed through the orifices 9 thickened on the front face 5 of the panel 4 of the module 3.

A cet effet, la largeur I des orifices 9 doit être choisie pour autoriser le suintement sans écoulement. De façon préférée, la largeur I est choisie inférieure à l'épaisseur e du panneau rectangulaire 4 du module 3. For this purpose, the width I of the orifices 9 must be chosen to allow seepage without flow. Preferably, the width I is chosen to be smaller than the thickness e of the rectangular panel 4 of the module 3.

En outre, la largeur I des orifices 9 est également avantageusement variable sur l'épaisseur e du panneau rectangulaire 4. Ce caractère variable de la largeur I procure, outre un meilleur contrôle du suintement du béton au travers des orifices 9 lors de la coulée dans le bloc de coffrage, un effet de blocage du module 3 dans la paroi de béton formée à l'aide du bloc de coffrage 1 de l'invention, cet effet de blocage renforçant encore l'assemblage des deux modules 2, 3 du bloc de coffrage 1 et l'ancrage du module 3 dans la paroi de béton formée.In addition, the width I of the orifices 9 is also advantageously variable over the thickness e of the rectangular panel 4. This variable nature of the width I provides, in addition to better control of the seepage of the concrete through the orifices 9 during casting in the shuttering block, a locking effect of the module 3 in the concrete wall formed using the shuttering block 1 of the invention, this locking effect further reinforcing the assembly of the two modules 2, 3 of the block of shuttering 1 and the anchoring of the module 3 in the formed concrete wall.

L'effet d'ancrage et de blocage du module 3 dans la paroi de béton PB formé est par ailleurs amélioré lorsque, comme représenté en détail sur la figure 5 , la largeur I des orifices 9 est variable de façon décroissante puis croissante depuis la face verso 6 vers la face recto 5 du panneau rectangulaire 4 et que, de façon préférée également, les bords 10 des orifices 9 sont chanfreinés. Une telle conformation des orifices 9 sur l'épaisseur du panneau 4 du module 3 de l'invention provoque la création lors du suintement de béton au travers des orifices 9 d'un tenon de béton 11 au niveau de la face recto 5 du panneau 4. Ce tenon exerce alors lors de la prise du béton un effort de traction contre la paroi de béton formée entre les modules 2, 3 du bloc de coffrage, tout en procurant un support adéquat sur ladite face recto 5 pour permettre de carreler avec des carreaux C cette dernière comme représenté sur la fig. 6 . The anchoring and blocking effect of the module 3 in the PB concrete wall formed is also improved when, as shown in detail in FIG. figure 5 , the width I of the orifices 9 is decreasingly variable and then increasing from the back side 6 to the front face 5 of the rectangular panel 4 and that, also preferably, the edges 10 of the orifices 9 are chamfered. Such a conformation of the orifices 9 on the thickness of the panel 4 of the module 3 of the invention causes the creation during the seepage of concrete through the orifices 9 of a concrete tenon 11 at the front face 5 of the panel 4 . This pin then exerts when the concrete has a tensile force against the concrete wall formed between the modules 2, 3 of the shuttering unit, while providing adequate support to said front face 5 to enable tiling with tiles C the latter as represented on the Fig. 6 .

Le bloc de coffrage perdu 1 tel que décrit précédemment et illustré à la fig. 1 présente une forme droite plus particulièrement destinée à la réalisation de mur droit. Cependant, les modules 2, 3 constituant ce bloc peuvent être utilisés pour réaliser un bloc de coffrage perdu incurvé ou courbe. Bien entendu, bien que les modules 2, 3 représentés sur les fig. 3 à 6 soient différents et que le bloc de coffrage de l'invention ne comporte qu'un seul module perforé 3 selon l'invention, il est entièrement possible de réaliser le bloc de coffrage 1 avec deux modules perforés 3 identiques au module 3 représenté sans sortir du cadre de la présente invention.The lost formwork block 1 as previously described and illustrated in FIG. Fig. 1 presents a straight form more particularly intended for the realization of straight wall. However, the modules 2, 3 constituting this block can be used to produce a curved or curved lost formwork block. Of course, although the modules 2, 3 represented on the Fig. 3 to 6 are different and that the formwork block of the invention comprises only one perforated module 3 according to the invention, it is entirely possible to produce the formwork block 1 with two perforated modules 3 identical to the module 3 shown without leaving the of the present invention.

Bien entendu également, diverses modifications peuvent être apportées au module 3 ou au bloc de coffrage perdu 1 selon l'invention sans sortir du cadre de cette dernière.Of course also, various modifications can be made to the module 3 or the lost formwork block 1 according to the invention without departing from the scope thereof.

Claims (9)

1. Module (3) destiné à être assemblé avec un autre module (2, 3) pour former un bloc de coffrage perdu (1) pour la réalisation d'une paroi de piscine en béton, module comprenant : ■ un panneau rectangulaire (4) présentant une face recto (5) et une face verso (6), ■ des organes (7) d'assemblage à un autre dit module, disposés sur la face verso (6) du panneau rectangulaire (4) et étant complémentaires d'organes d'assemblage (7) dudit autre module, caractérisé en ce que le panneau rectangulaire (4) est ajouré d'orifices (9) débouchant de part en part sur chacune des faces recto et verso du panneau rectangulaire et répartis de façon uniforme sur toute la surface dudit panneau. 1. Module (3) intended to be assembled with another module (2, 3) to form a permanent shuttering unit (1) for producing a concrete pool wall module comprising: A rectangular panel (4) having a front face (5) and a reverse face (6), ■ assembly members (7) to another said module, arranged on the reverse side (6) of the rectangular panel (4) and being complementary to assembly members (7) of said other module, characterized in that the rectangular panel (4) is perforated with orifices (9) opening out from one side to each of the front and back sides of the rectangular panel and distributed uniformly over the entire surface of said panel. 2. Module selon la revendication 1 caractérisé en ce que les orifices (9) couvrent plus de 50 % de la surface totale du panneau rectangulaire (4). 2. Module according to claim 1 characterized in that the orifices (9) cover more than 50% of the total surface of the rectangular panel (4). 3. Module selon la revendication 1 ou 2 caractérisé en que les orifices (9) présentent une forme sensiblement oblongue. 3. Module according to claim 1 or 2 characterized in that the orifices (9) have a substantially oblong shape. 4. Module selon l'une des revendications 1 à 3 caractérisé en ce que les orifices (9) présentent une largeur I inférieure à l'épaisseur (e) du panneau rectangulaire. 4. Module according to one of claims 1 to 3 characterized in that the orifices (9) have a width I less than the thickness (e) of the rectangular panel. 5. Module selon l'une des revendications 1 à 4, caractérisé en ce que la largeur des orifices (9) est variable sur l'épaisseur du panneau rectangulaire. 5. Module according to one of claims 1 to 4, characterized in that the width of the orifices (9) is variable over the thickness of the rectangular panel. 6. Module selon la revendication 5 caractérisé en ce que la largeur I des orifices (9) est variable de façon décroissante puis croissante depuis la face verso (6) vers la face recto (5) du panneau rectangulaire (4). 6. Module according to claim 5 characterized in that the width I of the orifices (9) is variable decreasingly and then increasing from the reverse side (6) to the front face (5) of the rectangular panel (4). 7. Module selon l'une des revendications 1 à 6 caractérisé en ce que les bords des orifices sont chanfreinés. 7. Module according to one of claims 1 to 6 characterized in that the edges of the orifices are chamfered. 8. Module selon l'une des revendications 1 à 7 caractérisé en ce qu'il est réalisé en matière plastique. 8. Module according to one of claims 1 to 7 characterized in that it is made of plastic. 9. Elément de coffrage perdu (1) pour la réalisation d'une paroi de piscine caractérisé en ce qu'il comprend deux modules (2,3) assemblables l'un à l'autre par des organes d'assemblage (7) complémentaires, l'un des deux modules au moins étant conforme à l'une des revendications 1 à 8. 9. Lost formwork element (1) for producing a pool wall, characterized in that it comprises two assemblable modules (2,3). to one another by complementary connecting members (7) , at least one of the two modules being according to one of claims 1 to 8.
EP10153132A 2009-02-13 2010-02-10 Lost shuttering block and module for the assembly of such a block Withdrawn EP2218848A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0950948A FR2942258B1 (en) 2009-02-13 2009-02-13 LOST FORMWORK BLOCK AND MODULE FOR CARRYING OUT SUCH A BLOC

Publications (1)

Publication Number Publication Date
EP2218848A1 true EP2218848A1 (en) 2010-08-18

Family

ID=41057001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153132A Withdrawn EP2218848A1 (en) 2009-02-13 2010-02-10 Lost shuttering block and module for the assembly of such a block

Country Status (2)

Country Link
EP (1) EP2218848A1 (en)
FR (1) FR2942258B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180347191A1 (en) * 2017-06-01 2018-12-06 9360-4742 Quebec Inc. Prefabricated concrete slab floor and method of fabricating the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05133028A (en) * 1991-11-11 1993-05-28 Tadashi Harada Lath form panel and form using this panel
FR2790777A1 (en) 1999-03-11 2000-09-15 Abriblue BANCHING ASSEMBLY, PARTICULARLY FOR THE CONSTRUCTION OF POOLS
WO2001073240A1 (en) * 2000-03-29 2001-10-04 Francesco Piccone Apertured wall element
FR2889550A1 (en) 2005-08-04 2007-02-09 Tout Pour L Eau Prat Sa Permanent formwork formation module for masonry field, has semi-cross-bars distributed on back side of rectangular panel, and with proximal bore receiving assembling screw and emerging out at level of front side of panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05133028A (en) * 1991-11-11 1993-05-28 Tadashi Harada Lath form panel and form using this panel
FR2790777A1 (en) 1999-03-11 2000-09-15 Abriblue BANCHING ASSEMBLY, PARTICULARLY FOR THE CONSTRUCTION OF POOLS
WO2001073240A1 (en) * 2000-03-29 2001-10-04 Francesco Piccone Apertured wall element
FR2889550A1 (en) 2005-08-04 2007-02-09 Tout Pour L Eau Prat Sa Permanent formwork formation module for masonry field, has semi-cross-bars distributed on back side of rectangular panel, and with proximal bore receiving assembling screw and emerging out at level of front side of panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180347191A1 (en) * 2017-06-01 2018-12-06 9360-4742 Quebec Inc. Prefabricated concrete slab floor and method of fabricating the same

Also Published As

Publication number Publication date
FR2942258B1 (en) 2011-04-15
FR2942258A1 (en) 2010-08-20

Similar Documents

Publication Publication Date Title
FR2905972A1 (en) ASSOCIATION USING A CONNECTOR, TWO EXTREMITS HOLLOWING SYNTHETIC PROFILES
FR2897378A1 (en) Casting concrete swimming pool walls uses formwork made up of rigid panels held together by rods which fit into anchoring heads and assembly heads
CA2295943C (en) Panels for constructing swimming pools
EP1749951B1 (en) Permanent formwork element and module for building such an element
EP1915495B1 (en) Board for building a swimming pool and a swimming pool built with said boards
EP2218848A1 (en) Lost shuttering block and module for the assembly of such a block
EP2907927B1 (en) Device for reserving pipe passages
EP1180185A1 (en) Ceiling slab
FR2813624A1 (en) Connecting/sealing extrusion for edge of sandwich panel used for wall facings or partitions has joint surface with tongue, groove and seals
FR2943701A1 (en) Prefabricated panel manufacturing method for forming insulating wall of building, involves hardening bonding material so as to connect posterior ends present in elongated grooves, and hardening concrete of concrete wall
EP2453067B1 (en) Permanent formwork panel and permanent formwork block comprising such a panel
FR2889550A1 (en) Permanent formwork formation module for masonry field, has semi-cross-bars distributed on back side of rectangular panel, and with proximal bore receiving assembling screw and emerging out at level of front side of panel
FR2991363A1 (en) Swimming pool, has floor, and four side panels that delimits interior space that is able to be filled with water, where side panels are tightened by set of rigid fixing units, and side panels form water-tight continuous barrier
FR2842555A1 (en) Concrete shuttering assembly, especially for swimming pools, comprises half-modules with male and female connections and couplings for modules
EP0675237A2 (en) Reinforced concrete gutter element and gutter
WO2002101175A1 (en) Device for assembling panels, laths or sheathings with load distribution
WO2011061414A1 (en) Support structure
WO2001029343A1 (en) Lost formwork elements for casting concrete
EP1171666A1 (en) Conduit element, method for making same and assembly component
WO2002022973A1 (en) Drain element comprising interlocking linking means
FR2905957A1 (en) Discharge spout for swimming pool, has hooking device that is positioned on wall and integrated with discharge device, where hooking and discharge devices are placed longitudinally and parallel to each other
EP1655426B1 (en) Formwork set, specially for the construction of swimming pools, and corresponding end pieces
EP0089887A2 (en) Building block
OA19772A (en) A method of manufacturing a floor, floor and associated integrated prop formwork element.
FR3056614A1 (en) PLASTIC SWIMMING POOL HULL PROVIDED WITH CONNECTING RODS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

17P Request for examination filed

Effective date: 20110125

17Q First examination report despatched

Effective date: 20111205

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151008