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ES2331035A1 - FORGED WITH PROTECTION FOR THE CASTONES OF THEIR LIGHTED PARTS. - Google Patents

FORGED WITH PROTECTION FOR THE CASTONES OF THEIR LIGHTED PARTS. Download PDF

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Publication number
ES2331035A1
ES2331035A1 ES200701320A ES200701320A ES2331035A1 ES 2331035 A1 ES2331035 A1 ES 2331035A1 ES 200701320 A ES200701320 A ES 200701320A ES 200701320 A ES200701320 A ES 200701320A ES 2331035 A1 ES2331035 A1 ES 2331035A1
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ES
Spain
Prior art keywords
forged
reliefs
concrete
base plate
base plates
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES200701320A
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Spanish (es)
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ES2331035B1 (en
Inventor
Antonio Sanchez Zabala
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.)
Gestedi Sur S L
GESTEDI SUR SL
Original Assignee
Gestedi Sur S L
GESTEDI SUR SL
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Priority to ES200701320A priority Critical patent/ES2331035B1/en
Publication of ES2331035A1 publication Critical patent/ES2331035A1/en
Application granted granted Critical
Publication of ES2331035B1 publication Critical patent/ES2331035B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/21—Cross-ribbed floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
    • E04G11/46—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings of hat-like or trough-like shape encasing a rib or the section between two ribs or encasing one rib and its adjacent flat floor or ceiling section

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)
  • Building Environments (AREA)

Abstract

Forjado con protección para los casetones de sus partes aligeradas; forjado que comprende partes aligeradas a base de casetones de material hueco o ligero flanqueados por nervios, viguetas, jácenas armadas o nervios hormigonados in situ y con capa de compresión superior con malla de reparto; caracterizado porque incluye una pluralidad de placas base de material adecuadamente resistente al fuego, destinadas a quedar retenidas en las zonas aligeradas del forjado a fondo perdido soportando, tapando y protegiendo inferiormente los casetones.Forged with protection for the caissons of its lightened parts; Slab comprising lightened parts based on caissons of hollow or light material flanked by ribs, joists, reinforced girders or ribs concreted in situ and with an upper compression layer with distribution mesh; characterized in that it includes a plurality of base plates of suitably fire-resistant material, intended to be retained in the lightened areas of the deep-pitched floor supporting, covering and protecting the coffers from below.

Description

Forjado con protección para los casetones de sus partes aligeradas.Forged with protection for the cases of their lightened parts.

Objeto de la invenciónObject of the invention

La presente invención se refiere a un forjado con protección para los casetones de sus partes aligeradas.The present invention relates to a floor with protection for the cases of their lightened parts.

Antecedentes de la invenciónBackground of the invention

Los forjados reticulares y unidireccionales tienen ciertas partes aligeradas que se implementan mediante moldes recuperables (cubetas) o bovedillas a fondo perdido (bovedillas o casetones).Reticular and unidirectional slabs they have certain lightened parts that are implemented by molds  Recoverable (buckets) or vaults in depth (vaults or casetones).

Usualmente estas bovedillas (llamadas casetones en lo sucesivo) y moldes se colocan con un intereje de 70 cm, y van sueltas entre sí, lo que en primer lugar complica su replanteo y colocación perfectamente alineada.Usually these vaults (called casetones hereinafter) and molds are placed with a 70 cm gap, and go  loose from each other, which first complicates its staking and perfectly aligned placement.

Otro inconveniente consiste en que estos casetones suelen ser frágiles y/o huecos. Por esta razón, a la hora de hormigonar el forjado hay que tapar los huecos extremos de los casetones cuando se colocan menos de dos seguidos para evitar que el hormigón escape por ahí. Además una vez terminado el forjado, suelen aparecer piezas rotas que pueden originar desprendimiento de casetones y corte de nervios.Another drawback is that these Casetones are usually fragile and / or hollow. For this reason, at the time to concrete the slab must cover the extreme gaps of the casetones when placed less than two in a row to prevent The concrete escapes out there. Also once the floor is finished, broken pieces usually appear that can cause detachment of Casetones and nerve cutting.

En las estructuras de hormigón cada vez se viene utilizando más casetones de poliestireno expandido como elemento aligeramente, pero su uso está muy penalizado a la hora de dejarlos vistos por razones de resistencia al fuego del material. Por lo tanto hay que revestirlos con materiales ignífugos, especialmente en zonas comunes y sectorización de incendio, con los correspondientes costes.In concrete structures every time it comes  using more expanded polystyrene cases as an element lightly, but its use is very penalized when leaving them seen for reasons of fire resistance of the material. For the both must be coated with fireproof materials, especially in common areas and sectorization of fire, with the corresponding costs.

Además, al tratarse el poliestireno de un material de propiedades diferentes a los que lo rodean o recubren (viguetas, nervios in situ, vigas, zunchos, bovedillas, etc.) propicia la aparición de fisuras, humedades, etcétera. También obliga a la utilización de fijaciones especiales para soportar cargas en el techo.In addition, when polystyrene is treated with a material with different properties than those that surround or cover it (joists, nerves in situ , beams, rails, vaults, etc.), it promotes the appearance of fissures, dampness, etc. It also requires the use of special fixings to support roof loads.

Por otro lado, el encofrado tradicional a base de planchas o tablones recuperables soportados por sopandas, puntales etcétera requiere un tiempo de desmontaje.On the other hand, the traditional formwork based of plates or recoverable boards supported by sopandas, struts and so on requires disassembly time.

Descripción de la invenciónDescription of the invention

El forjado de la invención tiene una constitución que protege sus partes aligeradas y aporta otras ventajas como una mayor rapidez de alineación o replanteo, y en determinadas variantes de realización también coopera an agilizar el desencofrado.The floor of the invention has a constitution that protects its lightened parts and provides other advantages such as faster alignment or stakeout, and in certain embodiments also cooperate to expedite the formwork.

El forjado tiene partes aligeradas entre nervios hormigonados in situ, jácenas o viguetas de hormigón armado, y superiormente dispone de capa de compresión de hormigón con malla de reparto.The slab has lightened parts between concrete concreted in situ , jácenas or joists of reinforced concrete, and superiorly it has a compression layer of concrete with cast mesh.

El forjado de la invención incluye una pluralidad de placas base de material resistente al fuego, según las normativas que sean exigibles, destinadas a colocarse durante el replanteo en sus zonas aligeradas, quedando integradas en el forjado terminado a fondo perdido.The floor of the invention includes a plurality of fire resistant material base plates, according to the regulations that are enforceable, intended to be placed during the staking in its lightened areas, being integrated into the Forged finished thoroughly lost.

Estas placas base tienen como finalidad soportar los casetones de material ligero y/o ahuecado que materializan dichas zonas aligeradas, tapando y protegiendo además su parte inferior al quedarse embebidas en el forjado a fondo perdido.These motherboards are intended to support the light and / or hollowed material cases that materialize said lightened areas, also covering and protecting their part inferior when remaining embedded in the forged fund.

Además pueden funcionar como parte activa del encofrado del forjado si se constituyen con la resistencia adecuada (placas base autoportantes), eliminando los desencofrados completos del forjado y agilizando por tanto la obra.They can also function as an active part of the slab formwork if constituted with adequate strength  (self-supporting motherboards), eliminating formwork complete of the floor and thus speeding up the work.

En dichas placas base preferentemente se prevén unos relieves de encaje con los casetones, otros relieves diferentes de soporte en la masa de hormigón terminado, así como otros relieves inferiores que favorezcan el agarre de enlucidos, etc.In said motherboards preferably they are provided some reliefs of lace with the cases, other reliefs different support in the finished concrete mass, as well as other lower reliefs that favor the grip of plasters, etc.

En correspondencia con lo anterior, en los casetones preferentemente también se implementarán unos relieves complementarios con los de las placas base que favorezcan el encaje con las mismas.In correspondence with the above, in the casetones preferably reliefs will also be implemented complementary to those of the base plates that favor the fit with them.

Breve descripción de los dibujosBrief description of the drawings

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:

La figura 1 muestra una vista en planta inferior y sección del forjado de la invención.Figure 1 shows a bottom plan view and section of the floor of the invention.

La figura 2 muestra una vista de una placa base del forjado de la invención.Figure 2 shows a view of a motherboard of the floor of the invention.

La figura 3 muestra sendas vistas lateral, en planta inferior y alzado de la citada placa base.Figure 3 shows two side views, in lower floor and elevation of said base plate.

Descripción de una realización práctica de la invenciónDescription of a practical embodiment of the invention

El forjado (1) de la invención comprende jácenas, viguetas y nervios (2) armados, entre los que se disponen las partes aligeradas (3), con una capa de compresión (4) superior con malla de reparto, no representada.The floor (1) of the invention comprises jácenas, joists and nerves (2) armed, among which are arranged lightened parts (3), with a compression layer (4) upper with cast mesh, not shown.

La invención propone la inclusión en el forjado de una pluralidad de placas base (5) a base de porciones rectangulares o cuadrangulares de hormigón, yeso, escayola, cerámica o mezclas de los anteriores, o en general de cualquier material de características adecuadas de resistencia al fuego y analogía de propiedades con los descritos.The invention proposes inclusion in the floor of a plurality of base plates (5) based on portions rectangular or quadrangular concrete, plaster, plaster, ceramic or mixtures of the above, or in general of any material of suitable fire resistance characteristics and analogy of properties with those described.

Estas placas base se colocan durante el replanteo de las zonas aligeradas (3) antes del vertido del hormigón, y quedan retenidas en el forjado terminado a fondo perdido, sujetando y soportando los correspondientes casetones (6), que igualmente pueden ser de diferentes materiales (cerámica, poliestireno expandido, etc). El espacio ocupado por el conjunto de placa base (5) y casetón (6) es igual al ocupado por cualquier bovedilla o casetón tradicional, según el cálculo estructural correspondiente.These motherboards are placed during the stakeout of lightened areas (3) before the discharge of concrete, and are retained in the floor finished finished lost, holding and supporting the corresponding cases (6), which can also be of different materials (ceramic, expanded polystyrene, etc). The space occupied by the set of motherboard (5) and caseton (6) is equal to that occupied by any traditional vault or caseton, according to the structural calculation correspondent.

Las placas base (5) pueden ser portantes o no. En el primer caso reducen los requerimientos del encofrado (puntales, sopandas y tablones o planchas), ya que ellas mismas actúan como placas de encofrado. Para conseguir que las placas base (5) sean portantes se les puede añadir el conveniente refuerzo, no representado, por ejemplo armaduras, fibra de vidrio, etc.The base plates (5) can be supportive or not. In the first case they reduce the formwork requirements (props, sopandas and planks or plates), since they themselves They act as formwork plates. To get the motherboards (5) be supporters you can add the convenient reinforcement, not represented, for example reinforcements, fiberglass, etc.

Las placas base (5) sirven para el replanteo exacto de las zonas aligeradas (3) del forjado (1) mediante la utilización de unos separadores (7) que apoyan en sus caras laterales, consiguiendo cuadriculas o alineaciones perfectas, según se trate de forjados reticulares o unidireccionales.The base plates (5) are used for staking Exactly of lightened areas (3) of the slab (1) by means of use of separators (7) that rest on their faces lateral, getting perfect grids or alignments, according to they are reticular or unidirectional slabs.

Está prevista, según la invención, una perfecta fijación de los casetones (6) a la placa base (5) merced a la implementación de unos encajes, en este ejemplo materializados por pestañas laterales (8) paralelas emergentes superiormente de la placa base (5) y correspondientes con unos rebajes laterales (9) implementados en los casetones (6).It is provided, according to the invention, a perfect fixing the cassettes (6) to the base plate (5) thanks to the implementation of some laces, in this example materialized by parallel side tabs (8) emerging above the base plate (5) and corresponding with side recesses (9) implemented in the cases (6).

También está previsto según la invención la implementación de unos relieves en las placas base (5) que mejoren su agarre al hormigón (10) fraguado. En este ejemplo se materializan mediante colas de milano (11) implementadas en las pestañas laterales (8).It is also provided according to the invention the implementation of reliefs on the base plates (5) that improve its grip on the concrete (10) set. In this example, materialize by dovetails (11) implemented in the side tabs (8).

Igualmente se ha previsto que la cara inferior (12) de la placa base (5) esté dotada de unos relieves (13) favorecedores del agarre de enlucidos o tratamientos similares. Como las placas base (5) son del mismo o similar material que los nervios (2), jácenas o viguetas que la flanquean, con semejantes propiedades físicas, de absorción de agua, adherencia, dilatación, etc, se pueden aplicar directamente estos tratamientos sin necesidad de realizar falsos techos de escayola, cartón yeso o similares.It is also planned that the lower face (12) of the base plate (5) is provided with reliefs (13) favoring the grip of plasters or similar treatments. As the base plates (5) are of the same or similar material as the nerves (2), jácenas or joists that flank it, with similar physical properties, water absorption, adhesion, dilation, etc., these treatments can be applied directly without need to make false plaster ceilings, plasterboard or Similar.

De este modo el forjado queda perfectamente rematado inferiormente, quedando protegidos los casetones contra el fuego en cumplimiento de las normativas exigibles, cuestión de especial importancia en el caso de casetones de poliestireno expandido, y facilitando el encofrado y desencofrado en el caso de placas base portantes.In this way the floor is perfectly topped off, the cases being protected against the  fire in compliance with the required regulations, a matter of especially important in the case of polystyrene cases expanded, and facilitating formwork and formwork in the case of carrier base plates.

Claims (12)

1. Forjado con protección para los casetones de sus partes aligeradas; forjado (1) que comprende partes aligeradas (3) a base de casetones (6) de material hueco 0 ligero flanqueados por nervios (2), viguetas, jácenas armadas o nervios hormigonados in situ y con capa de compresión superior con malla de reparto; caracterizado porque incluye una pluralidad de placas base (5) de material adecuadamente resistente al fuego, destinadas a quedar retenidas en las zonas aligeradas (3) del forjado (1) a fondo perdido soportando, tapando y protegiendo inferiormente los casetones (4).1. Forged with protection for the cases of their lightened parts; forged (1) comprising lightened parts (3) based on cassettes (6) of hollow or light material flanked by ribs (2), joists, reinforced jácenas or concreted nerves in situ and with upper compression layer with distribution mesh; characterized in that it includes a plurality of base plates (5) of material adequately resistant to fire, intended to be retained in the lightened areas (3) of the floor (1) in a completely lost way, supporting, covering and protecting the bottom cases (4). 2. Forjado según reivindicación 1 caracterizado porque las placas base (5) se materializan en un material seleccionado entre hormigón, yeso escayola, cerámica o mezclas de los anteriores.2. Forged according to claim 1 characterized in that the base plates (5) are materialized in a material selected from concrete, plaster, ceramic or mixtures of the above. 3. Forjado según reivindicación 1 caracterizado porque las placas base (5) son portantes en orden a funcionar como parte del encofrado durante la formación del forjado (1).3. Forging according to claim 1 characterized in that the base plates (5) are supporting in order to function as part of the formwork during the formation of the floor (1). 4. Forjado según reivindicaciones 2 o 3 caracterizado porque las placas base (5) portantes integran un refuerzo.4. Forged according to claims 2 or 3 characterized in that the supporting base plates (5) integrate a reinforcement. 5. Forjado según reivindicación 1 caracterizado porque se han previsto unos separadores (7) destinados apoyar en las caras laterales de las placas base (5) en orden a conseguir la perfecta colocación en hileras o cuadrículas de dichas placas base (5).5. Forged according to claim 1 characterized in that separators (7) are provided for supporting on the side faces of the base plates (5) in order to achieve the perfect placement in rows or grids of said base plates (5). 6. Forjado según reivindicación 1 caracterizado porque se han previsto unos relieves de encaje entre la placa base (5) y el casetón (6) correspondiente.6. Forged according to claim 1 characterized in that there are provided reliefs of fit between the base plate (5) and the corresponding cassette (6). 7. Forjado según reivindicación 6 caracterizado porque dichos relieves de encaje comprenden unas pestañas laterales (8) paralelas emergentes superiormente de la placa base (5) destinadas a encajar en unos correspondientes rebajes (9) laterales inferiores del casetón (6).7. Forged according to claim 6 characterized in that said lace reliefs comprise parallel side flanges (8) emerging superiorly from the base plate (5) intended to fit into corresponding lower side recesses (9) of the cassette (6). 8. Forjado según reivindicación 1 caracterizado porque se han previsto en la placa base (5) unos medios de agarre al hormigón (10) del forjado (1).8. Forging according to claim 1 characterized in that means for gripping concrete (10) of the slab (1) are provided on the base plate (5). 9. Forjado según reivindicaciones 7 y 8 caracterizado porque los medios de agarre de la placa base (5) al hormigón (10) del forjado (1) consisten en unas colas de milano (11) materializadas en las pestañas laterales (8) emergentes de la placa base (5).9. Forged according to claims 7 and 8 characterized in that the gripping means of the base plate (5) to the concrete (10) of the slab (1) consist of dovetails (11) materialized in the emerging side flanges (8) of the motherboard (5). 10. Forjado según reivindicación 1 caracterizado porque se han previsto en las caras inferiores (12) de las pacas base (5) unos relieves (13) destinados a favorecer el agarre de enlucidos o tratamientos similares.10. Forged according to claim 1 characterized in that reliefs (13) intended to favor the grip of plasters or similar treatments are provided on the lower faces (12) of the base bales (5). 11. Placa base para forjado con protección de sus partes aligeradas caracterizada porque comprende una porción cuadrangular o rectangular de hormigón, yeso, escayola, cerámica o mezclas de los anteriores, provista de unos relieves de encaje para un casetón aligerante del forjado; de otros relieves de agarre en el hormigón en masa del forjado; y de otros relieves inferiores de agarre de enlucidos o recubrimientos.11. Base plate for flooring with protection of its lightened parts characterized in that it comprises a quadrangular or rectangular portion of concrete, plaster, plaster, ceramics or mixtures of the above, provided with some reliefs of lace for a lightening case of the floor; of other grip reliefs in the concrete mass of the floor; and of other lower reliefs of plaster or coatings. 12. Casetón para forjado con protección de sus partes aligeradas caracterizado porque implementa unos relieves destinados al encaje de una placa base inferior de protección.12. Cassette for forged with protection of its lightened parts characterized in that it implements reliefs intended for the fitting of a lower base plate of protection.
ES200701320A 2007-05-16 2007-05-16 FORGED WITH PROTECTION FOR THE CASTONES OF THEIR LIGHTED PARTS. Expired - Fee Related ES2331035B1 (en)

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ES200701320A ES2331035B1 (en) 2007-05-16 2007-05-16 FORGED WITH PROTECTION FOR THE CASTONES OF THEIR LIGHTED PARTS.

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ES200701320A ES2331035B1 (en) 2007-05-16 2007-05-16 FORGED WITH PROTECTION FOR THE CASTONES OF THEIR LIGHTED PARTS.

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ES2331035A1 true ES2331035A1 (en) 2009-12-18
ES2331035B1 ES2331035B1 (en) 2010-09-17

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482170A1 (en) * 1980-05-06 1981-11-13 Agglomeres Sa Ste Noyalaise Applying cast fibrous-cement layer to profiled foam ceiling panel - to produce self-supporting fire-resistant panels to suit flanged rafters
US4831803A (en) * 1986-10-23 1989-05-23 Nicola Leonardis Foundation form work
ES2159464A1 (en) * 1999-03-31 2001-10-01 Poliglas Sa A caisson.
ES2168215A1 (en) * 2000-06-21 2002-06-01 Polisur 2000 S A Expanded polystyrene arches based wall ducts system includes a perimetral bonding strip for the duct arches and the reinforcement and in situ concrete
ES2219129A1 (en) * 2001-11-03 2004-11-16 Forjados Reticulares Ligeros, S.A. (Forel, S.A.) MODULAR POLIVALENT PROVISION FOR OBTAINING CONCRETE FORGED "IN SITU".
ES2272133A1 (en) * 2004-11-19 2007-04-16 Forjados Y Estructuras Ligeras Castilla Y Leon, S.A. Planking for use in construction of concrete structure, has adjacent prefabricated mortar boards, which support lower platform, covered at their points of contact with hollow casings
ES2324251A1 (en) * 2006-08-17 2009-08-03 Carlos Torres Del Rosario Mixed forged polystyrene and concrete. (Machine-translation by Google Translate, not legally binding)

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482170A1 (en) * 1980-05-06 1981-11-13 Agglomeres Sa Ste Noyalaise Applying cast fibrous-cement layer to profiled foam ceiling panel - to produce self-supporting fire-resistant panels to suit flanged rafters
US4831803A (en) * 1986-10-23 1989-05-23 Nicola Leonardis Foundation form work
ES2159464A1 (en) * 1999-03-31 2001-10-01 Poliglas Sa A caisson.
ES2168215A1 (en) * 2000-06-21 2002-06-01 Polisur 2000 S A Expanded polystyrene arches based wall ducts system includes a perimetral bonding strip for the duct arches and the reinforcement and in situ concrete
ES2219129A1 (en) * 2001-11-03 2004-11-16 Forjados Reticulares Ligeros, S.A. (Forel, S.A.) MODULAR POLIVALENT PROVISION FOR OBTAINING CONCRETE FORGED "IN SITU".
ES2272133A1 (en) * 2004-11-19 2007-04-16 Forjados Y Estructuras Ligeras Castilla Y Leon, S.A. Planking for use in construction of concrete structure, has adjacent prefabricated mortar boards, which support lower platform, covered at their points of contact with hollow casings
ES2324251A1 (en) * 2006-08-17 2009-08-03 Carlos Torres Del Rosario Mixed forged polystyrene and concrete. (Machine-translation by Google Translate, not legally binding)

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