EP2218848A1 - Block für eine verlorene Schalung und Modul für den Bau einer solchen Schalung - Google Patents

Block für eine verlorene Schalung und Modul für den Bau einer solchen Schalung Download PDF

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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Withdrawn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
English (en)
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/de
Withdrawn legal-status Critical Current

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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.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP10153132A 2009-02-13 2010-02-10 Block für eine verlorene Schalung und Modul für den Bau einer solchen Schalung Withdrawn EP2218848A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0950948A FR2942258B1 (fr) 2009-02-13 2009-02-13 Bloc de coffrage perdu et module pour la realisation d'un tel bloc

Publications (1)

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

Family

ID=41057001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153132A Withdrawn EP2218848A1 (de) 2009-02-13 2010-02-10 Block für eine verlorene Schalung und Modul für den Bau einer solchen Schalung

Country Status (2)

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EP (1) EP2218848A1 (de)
FR (1) FR2942258B1 (de)

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 (ja) * 1991-11-11 1993-05-28 Tadashi Harada ラス型枠パネルと該パネルを用いた型枠
FR2790777A1 (fr) 1999-03-11 2000-09-15 Abriblue Ensemble a bancher, notamment pour la construction des piscines
WO2001073240A1 (en) * 2000-03-29 2001-10-04 Francesco Piccone Apertured wall element
FR2889550A1 (fr) 2005-08-04 2007-02-09 Tout Pour L Eau Prat Sa Element de coffrage perdu et module pour la realisation d'un tel element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05133028A (ja) * 1991-11-11 1993-05-28 Tadashi Harada ラス型枠パネルと該パネルを用いた型枠
FR2790777A1 (fr) 1999-03-11 2000-09-15 Abriblue Ensemble a bancher, notamment pour la construction des piscines
WO2001073240A1 (en) * 2000-03-29 2001-10-04 Francesco Piccone Apertured wall element
FR2889550A1 (fr) 2005-08-04 2007-02-09 Tout Pour L Eau Prat Sa Element de coffrage perdu et module pour la realisation d'un tel element

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 (fr) 2011-04-15
FR2942258A1 (fr) 2010-08-20

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