EP2180112A2 - Mörtelplatte mit verringerter Dicke und Verfahren zur Herstellung besagter Mörtelplatte - Google Patents

Mörtelplatte mit verringerter Dicke und Verfahren zur Herstellung besagter Mörtelplatte Download PDF

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Publication number
EP2180112A2
EP2180112A2 EP09382195A EP09382195A EP2180112A2 EP 2180112 A2 EP2180112 A2 EP 2180112A2 EP 09382195 A EP09382195 A EP 09382195A EP 09382195 A EP09382195 A EP 09382195A EP 2180112 A2 EP2180112 A2 EP 2180112A2
Authority
EP
European Patent Office
Prior art keywords
panel
elements
tubular
filiform
tubular elements
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Withdrawn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
EP09382195A
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English (en)
French (fr)
Inventor
José David Calzon Trapiello
Joan Salvador Arnau
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.)
Tribologic SL
Original Assignee
Tribologic SL
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 Tribologic SL filed Critical Tribologic SL
Publication of EP2180112A2 publication Critical patent/EP2180112A2/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry

Definitions

  • the invention relates to a process for the manufacture of a lightweight panel of a resistant and settable material, with reduced thickness, as well as to the panel obtained by said process.
  • the lightweight panel is provided with reinforcing filiform elements embedded therein as well as with a plurality of anchoring elements for securing the panel, by its non-visible face, to a supporting structure, being suitable for the construction of outdoor (façades) and indoor enclosures, for the covering of walls, the formation of raised floors, of street furniture, etc.
  • United States patent US 6711866 describes a prestressed concrete panel with a thickness of approximately 1.5 inches.
  • the prestressed tendons extend in two perpendicular directions, like a grid, placed on each side of the mid-plane of the panel and spaced from said mid-plane so as to increase the strength of the panel and prevent its warping.
  • the panel is provided with anchors or connectors embedded in the panel and provided with an internally threaded hollow cylindrical body the open end of which is communicated with the outer surface of the non-visible face of the panel.
  • the securing of the panel to a structure of the building is carried out by interposing a metal strip between the surface of the non-visible face of the panel and the outer surface of said structure, said strip being bent like a bar, establishing a separation distance between both surfaces.
  • the bar is fixed at one end to the structure, by means of a fixing screw, and at the other end to the non-visible face of the panel, by means of a lock screw the outer thread of which is suitable for fitting in the inner thread of the cylindrical body embedded in the panel.
  • the cylindrical body is partially introduced traversing a plate two of the edges of which are inwardly bent to engage a pair of prestressed parallel tendons of the panel.
  • a mortar panel with reduced thickness is the one described in Spanish utility model ES 1065420U , biaxially reinforced by means of two bands of prestressed rods which orthogonally cross one another forming a grid, at the crossing points of which the rods of one band are not joined with those of the other band.
  • Said panel comprises securing means for its securing to the structure of the building which are occluded in the mortar mass and intercalated in the space of any of the squares of the grid.
  • Said securing means are made up of parts formed by a disc-shaped base, followed by a cylindrical segment internally provided with a threaded blind hole.
  • the base in the form of a flange acts as a retainer of the securing means in the settable mass, whereas the cylindrical segment acts as an anchor since it can attach the panel to the structure of the building when a correspondingly threaded fixing screw is inserted.
  • the parts in the form of a flange of the securing means centred in some of the squares of the reinforcement and to support said means by holding means through anchoring stems screwed in the holes, such that the free end of the cylindrical segment is flush with what will be the surface of the non-visible face of the panel.
  • the previously described securing means are manufactured in a material of the group comprising cement compounds and compounds used in ceramics.
  • the previously described securing means assure the reliability of the securing of the panel, they give rise to high costs in the manufacture thereof as well as costs derived from the process for manufacturing the panel since, in the case of metal securing means, a precise machining process is necessary, and in the case of ceramic securing means, the intervention of a machine holding said means in the centred position in the squares and at a certain distance from the base of the mould (visible face of the panel), before the pouring and during the material setting process, is necessary.
  • the panel object of the invention is made of a resistant and settable material, has a reduced thickness, and is provided with reinforcing filiform elements embedded therein and with a plurality of anchors intended to secure the panel, by its non-visible face, to a supporting structure.
  • each tubular element is integrally joined to respective first filiform elements.
  • the integral joint between the tubular elements and the first filiform elements is a joint by welding. This considerably simplifies the manufacturing method of the panel, since it allows positioning the anchors for the securing to the actual reinforcement without having to use auxiliary machinery keeping them in position during the pouring of the settable material of the panel and its setting process.
  • the two layers forming the reinforcing filiform elements are integral at their crossing points, forming an electrowelded mesh.
  • the tubular elements have a cavity at least partially occupied by a plastic foam material.
  • the panel thus constructed allows being stacked one on top of the other before the fixing to the anchors of the sheet metal strip by means of the sheet metal screw, saving space in the transport of several units of panels, since there is no element projecting from the non-visible face.
  • the placement of the mentioned sheet strip can be carried out subsequently, even on-site.
  • Said sheet metal or self-tapping screws are furthermore self-drilling screws, which facilitates the placement of the sheet metal strip and its fixing to the supporting structure.
  • a process for the manufacture of the panel object of the invention described above is disclosed, which is essentially characterized in that it comprises the following steps:
  • the mentioned process allows a quick and clean manufacture of the panel object of the invention without needing to use complex machinery. Furthermore, the injection under pressure of the settable material favours the compactability of the panel and prevents small unfilled spaces from remaining inside it, overcoming the structural problems that this would involve.
  • the anchoring tubular elements are partially filled with a plastic foam material, before or after they are attached by welding to the filiform elements of the mesh, leaving the areas close to the open ends of the tubular elements unfilled so that the resistant material injected in step c) penetrates through said open ends in the tubular elements.
  • step d) is carried out in a setting chamber at a temperature comprised between 40 o C and 60 o C.
  • sheet metal strips are attached to the outer bases of some tubular elements by means of respective sheet metal or self-tapping (and optionally, self-drilling) screws, which sheet metal strips are provided with a step, such that between the sheet strips and the mentioned outer bases there is a space suitable for receiving the end of a profile of the supporting structure from which the panel will be suspended in its placement and fixing.
  • Figs. 1 and 2 show the high-strength mortar panel 1 with reduced thickness, comprised between 12 and 25 mm from the visible face 4 to the non-visible face 5 of said panel 1.
  • the depicted panel 1 measures 2400 x 1200 mm, with a thickness of 20 mm. Due to its technical features, which will be described below, said panel 1 is indicated for the covering of outdoor (facades) and indoor enclosures, as shown in Figs. 5 to 7 , of walls, for the formation of raised floors, of street furniture, etc.
  • the configurations of the panel 1 are varied according to the use and location thereof.
  • the panel 1 depicted in Fig. 17 corresponds to a corner panel, therefore it has a curved shape.
  • the panel 1 of Fig. 1 has been depicted with the bottom left corner lacking the settable material, high-strength mortar, for the purpose of being able to see the reinforcement of said panel 1.
  • the panel 1 is reinforced with a plurality of first filiform elements 2, arranged parallel to the shortest side of the panel 1, and by a plurality of second filiform elements 3 perpendicular to the first ones, forming a grid of two layers which are integrally joined at the crossing points of the filiform elements 2 and 3.
  • the mentioned filiform elements 2 and 3 are made of stainless steel and form an electrowelded mesh, preventing corrosion problems and saving labour costs in the manufacturing process, since there is no prestressed or post-stressed reinforcement which usually increases the cost of the end product due to the operations and control that it involves.
  • Fig. 1 shows the distribution of a plurality of anchors, separated every 300 mm, intended to secure the panel 1 by its non-visible face 5 to a supporting structure 16 (see Figs. 5 to 7 ).
  • These anchors comprise metal tubular elements 6 made of stainless steel, with open ends and an essentially rectangular cross-section, as can be seen in Fig. 4 .
  • Each of said tubular elements 6 has two opposite rectangular bases, in which the outer base 7 is flush with the non-visible face 5 of the panel 1, whereas the inner base 8 is oriented towards the visible face 4 of the panel 1 ( Fig. 2 ).
  • Each of the side faces 9 of the tubular element 6 is integrally attached, by means of welding, to a respective first filiform element 2, whereby the position of the tubular element 6 is assured with respect to the mesh of the reinforcement of the panel 1.
  • Both Fig. 3 and Fig. 4 show that the separations between the reinforcing bars forming the mesh have been adjusted so that each tubular element 6 is framed by two first filiform elements 2 (welded to the side faces 9) and by two second filiform elements 3.
  • the mentioned pair of second filiform elements 3 is arranged flanking the two open ends of the tubular element 6 and, optionally, can be attached to said ends by means of spot welds in those segments of contact.
  • tubular elements 6 are also made of steel, with a rectangular cross-section, and have their outer bases 7 flush with the non-visible face 5 of the panel 1, has been contemplated in Fig. 16 .
  • the inner base 8 of each tubular element 6 is integrally attached to a first filiform element 2, in a segment close to the crossing of the latter with a second filiform element 3, and one of the side faces 9 of said tubular element 6 is integrally attached by welding to a second filiform element 3 (see detail F).
  • tubular elements 6 is occupied by a plastic foam material 10, for example expanded polystyrene, whereas the ends of said tubular elements 6 are occupied by the resistant and settable material of the panel 1, in this case, a high-strength mortar with a minimum strength value of 50 N/mm 2 .
  • a high-strength mortar with a minimum strength value of 50 N/mm 2 .
  • the anchors of the panel 1 also comprise suspending means formed by a sheet metal strip 11 provided with a step.
  • Each strip 11 is supported on the outer base 7 of a tubular element 6 and is fixedly attached to said tubular element 6 by means of two sheet metal or self-tapping screws 12, preferably self-drilling ones, which, traversing the outer base 7, are introduced in the plastic foam material 10 of the inside of the cavity of the tubular element 6. Said assembly is observed in detail in Figs. 8, 9 , in detail E of Fig. 14 and in Fig.
  • the stepped shape of the strip 11 creates a space between the outer base 7 of the tubular element 6 and said strip 11 that is suitable for receiving the end of a profile 13 of the supporting structure 16 from which the panel 1 is suspended, with the interposition of an adjustment portion 14 manufactured in an elastomeric material which, in addition to adjusting the assembly, prevents the transmission of vibrations and favours the electric insulation between the parts involved.
  • Fig. 8 corresponding to detail B of Fig. 6 , shows how two panels 1 are secured at the lower and upper part.
  • a panel 1 such as those depicted in Figs. 1, 2 and 5 to 7
  • strips 11 fixed with sheet metal screws 12 in the outer bases 7 of some of the tubular elements 6 of a lower horizontal alignment of the panel 1 will be placed.
  • the strips 11 will be placed, for example, every two tubular elements 6.
  • respective "omega" profiles 13 of a small depth see Figs. 8 , 10 , 11 , 14 and 15 ) will be fixed in the corresponding vertical posts 17.
  • the panel 1 For the placement and fixing of the panel 1 to the profiles 13 of the supporting structure 16, the panel 1 must simply be raised, such that the alignments of strips 11 are above the upper ends of the profiles 13, as shown Fig. 15 , and subsequently be lowered such that said ends occupy the space existing between the steps of the strips 11 (free ends surrounded by the adjustment portions 14) and the outer bases 7 of the tubular elements 6, until it abuts (see detail E of Fig. 14 ).
  • the pair of upper sheet metal screws 19 of Fig. 13 correspond to those fixing the profile 18 to a post 17, whereas the pair of lower sheet metal screws 19 correspond to those fixing said profile 18 to the outer base 7 of a tubular element 6 of the panel 1, as observed in detail D of Fig. 14 .
  • the upper fixing (detail D of Fig. 14 ) of the panel 1 assures that the latter will not be able to turn over with respect to the lower fixing (detail E of Fig. 14 ).
  • the inside of the cavity of the anchoring tubular elements 6 is filled with a plastic foam material 10, such that the only segments of the tubular elements 6 without filling are those of the areas close to their open ends.
  • each tubular element 6 there is distinguished an outer base 7, which will be flush with the non-visible face 5 of the panel 1, and at least one of the side faces 9 of the tubular element 6 which will be integrally attached to a first filiform element 2.
  • the panel 1 has all its tubular elements 6 framed by two first filiform elements 2, to which they are welded, and by two second filiform elements 3 in a perpendicular direction.
  • the electrowelded mesh forms the reinforcement of the panel 1 since it must take into account the separations between the first filiform elements 2 and the second filiform elements 3 so that the tubular elements 6 can be fixed by welding in some of the grids thereof, welding the side faces 9 to the first filiform elements 2 of said grids.
  • cement mortar with a minimum strength of 50 N/mm 2
  • said material is injected under pressure through one or more inlet openings provided in the mould, the injection ending when the entire inner space between the two half-moulds is completely full.
  • the injection favours that the panel 1 with reduced thickness is very compact, reducing to a minimum the possibilities of any small hollow remaining unfilled inside any segment of the panel 1.
  • said panel 1 After demoulding the panel 1 by decoupling it from the two half-moulds, said panel 1 can be stored on top of other panels 1, since there is no element projecting from the surface thereof which hinders stacking.
  • the panels 1 are suspended from the upper ends of the profiles 13, since they are inserted within the spaces left between the sheet metal strips 11 attached by means of corresponding sheet metal or self-tapping screws 12 to the outer bases 7 of some tubular elements 6 and their corresponding fillings of plastic foam material 10.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Panels For Use In Building Construction (AREA)
EP09382195A 2008-10-22 2009-10-05 Mörtelplatte mit verringerter Dicke und Verfahren zur Herstellung besagter Mörtelplatte Withdrawn EP2180112A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200802972A ES2320306B1 (es) 2008-10-22 2008-10-22 Panel de mortero de reducido espesor y procedimiento de fabricacion del mismo.

Publications (1)

Publication Number Publication Date
EP2180112A2 true EP2180112A2 (de) 2010-04-28

Family

ID=40719045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09382195A Withdrawn EP2180112A2 (de) 2008-10-22 2009-10-05 Mörtelplatte mit verringerter Dicke und Verfahren zur Herstellung besagter Mörtelplatte

Country Status (2)

Country Link
EP (1) EP2180112A2 (de)
ES (1) ES2320306B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6711866B2 (en) 2000-10-06 2004-03-30 Brian M. Blount Thin prestressed concrete panel and apparatus for making the same
ES1065420U (es) 2007-05-14 2007-08-16 Carlos Fradera Pellicer Panel de mortero con armadura biaxial pretensada.
ES1066496U (es) 2007-10-11 2008-02-01 Carlos Fradera Pellicer "taco versatil para paneles prefabricados".

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1677372A (en) * 1927-05-13 1928-07-17 Bernard A Ruhling Sheet rubber
US3248836A (en) * 1963-06-17 1966-05-03 Structural Clay Products Inst External wall panel and wall formed therefrom
US4194333A (en) * 1978-05-24 1980-03-25 Butler Manufacturing Company Attachment for mounting concrete wall panels on a building
JPH0228652B2 (ja) * 1983-07-19 1990-06-26 Asahi Chemical Ind Umekomikanaguomaisetsushitakeiryokihokonkuriitopaneru
JP2624502B2 (ja) * 1988-03-14 1997-06-25 小野田エー・エル・シー株式会社 軽量気泡コンクリートパネル用補強マットの製造方法
CA2209664C (en) * 1995-01-06 2005-06-07 The Burke Group Concrete structure having load transferring insert and method for making same
JP2000006134A (ja) * 1998-06-26 2000-01-11 Onoda Autoclaved Light Weight Concrete Co Ltd アンカー用長尺プレート埋設ａｌｃパネルの製造方法及びそれにより得られるａｌｃパネル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6711866B2 (en) 2000-10-06 2004-03-30 Brian M. Blount Thin prestressed concrete panel and apparatus for making the same
ES1065420U (es) 2007-05-14 2007-08-16 Carlos Fradera Pellicer Panel de mortero con armadura biaxial pretensada.
ES1066496U (es) 2007-10-11 2008-02-01 Carlos Fradera Pellicer "taco versatil para paneles prefabricados".

Also Published As

Publication number Publication date
ES2320306B1 (es) 2010-07-07
ES2320306A1 (es) 2009-05-20

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