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WO2002031284A1 - Method for production of reinforced concrete floors with a heat and/or sound insulation - Google Patents

Method for production of reinforced concrete floors with a heat and/or sound insulation Download PDF

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Publication number
WO2002031284A1
WO2002031284A1 PCT/AT2001/000316 AT0100316W WO0231284A1 WO 2002031284 A1 WO2002031284 A1 WO 2002031284A1 AT 0100316 W AT0100316 W AT 0100316W WO 0231284 A1 WO0231284 A1 WO 0231284A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulation
reinforced concrete
concrete
production
heat
Prior art date
Application number
PCT/AT2001/000316
Other languages
German (de)
French (fr)
Inventor
Peter Goess
Original Assignee
Pp Prottelith Produktionsgesellschaft Mbh
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 Pp Prottelith Produktionsgesellschaft Mbh filed Critical Pp Prottelith Produktionsgesellschaft Mbh
Priority to PL01356881A priority Critical patent/PL356881A1/en
Priority to EP01971464A priority patent/EP1328692A1/en
Priority to HU0204077A priority patent/HUP0204077A2/en
Priority to AU2001291464A priority patent/AU2001291464A1/en
Priority to SK970-2002A priority patent/SK9702002A3/en
Priority to JP2002534640A priority patent/JP2004510904A/en
Publication of WO2002031284A1 publication Critical patent/WO2002031284A1/en

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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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor

Definitions

  • the invention relates to a method for producing reinforced concrete ceilings equipped with thermal and / or acoustic insulation, in which an insulation board, reinforcing steel mats and concrete are applied to a formwork.
  • thermal insulation panels as are known for facades and are generally defined subsequently using slatted frames, represent a water-resistant and largely moisture-resistant open-pore structure in which the polystyrene foam waste is homogeneously embedded.
  • Such plates can be easily machined and shaped using conventional tools.
  • the invention now aims to provide a method of the type mentioned for the manufacture of reinforced concrete ceilings provided with reinforcing steel mats, in which the introduction of thermal and / or acoustic insulation can be done without the aid of anchors, so that a reinforced concrete ceiling is created in a single operation on which an insulation board is fixed with high strength without the interposition of glue or anchors.
  • the method according to the invention essentially consists in that a plate made of cement paste-bonded expanded polystyrene particles is used as the insulation board.
  • a board made of cement paste-bonded expanded polystyrene particles known per se for facade boards is used as the insulation board can surprisingly be dispensed with the use of anchors.
  • anchors For the production of such a reinforced concrete ceiling, it is sufficient to apply the corresponding reinforcing steel mats to the insulation board and to pour in-situ concrete.
  • the reinforced concrete ceiling according to the invention is therefore preferably constructed so that the insulation boards are used as lost formwork.
  • a particularly high level of adhesion and integration of the insulation board in the boundary layer to the concrete is advantageously achieved if the procedure is followed such that the cement paste of the insulation boards is not fully hydrated before the in-situ concrete is applied.
  • the procedure can advantageously be such that the reinforcing steel mats are placed directly on the insulation panels without there being a risk that the usually used anchors may be bent or destroyed when Introducing the reinforcing steel mesh will become ineffective.
  • the design according to the invention results in problem-free laying of the reinforcement without damaging the panels, and in many cases, in particular in the area of upstands, such insulating panels can be used as lost formwork.
  • precise work can also be carried out on existing buildings.
  • a good visual appearance, low waste and rapid and uncomplicated processing are also achieved. Due to the cement paste bond, a high degree of moisture resistance is achieved at the same time.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a method for production of steel-reinforced concrete floors with a heat and/or sound insulation, whereby an insulating sheet, reinforcing steel grids and concrete are applied on shuttering. The insulating sheet is in the form of expanded polystyrene particles bonded with cement paste.

Description

Verfahren zur Herstellung von mit einer Wärme- und/oder SchalIschutzdärπmunα ausgestatteten Stahlbetondecken Process for the production of reinforced concrete ceilings equipped with a heat and / or soundproofing insulation
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von mit einer Wärme- und/oder Schallschutzdämmung ausgestatteten Stahlbetondecken, bei welchem auf eine Schalung eine Dämmplatte, Bewehrungsstahlmatten und Beton aufgebracht werden.The invention relates to a method for producing reinforced concrete ceilings equipped with thermal and / or acoustic insulation, in which an insulation board, reinforcing steel mats and concrete are applied to a formwork.
Bei der Herstellung von Stahlbetondecken, welche mit einer Wärme- und/oder Schallschutzdämmung ausgestattet werden sollen, ist es üblich an derartige Stahlbetondecken entsprechende Dämmplatten mit Dübeln zu befestigen. Ähnlich wie bei der nachträglichen Wärmedämmung von Fassaden werden hiebei zumeist Glasfaser- oder Steinwollematten eingesetzt, welche nachträglich an der erhärteten Decke festgelegt werden können. Wenn derartige Glasfaser- oder Steinwollematten oder auch andere bekannte Dämmplatten in einem Arbeitsgang unmittelbar bei der Herstellung der Stahlbetondecke bereits eingebracht werden sollen, müssen in aller Regel entsprechende Anker vorgesehen sein, welche nachträglich mit Ortbeton umspült werden, sodaß sie im Beton verankert sind. Derartige Anker behindern aber die Einbringung von Bewehrungsstahlmatten und es besteht beim Einbringen von Bewehrungsstahlmatten immer die Gefahr, daß derartige Anker zur Festlegung von Dämmplatten abgebogen oder abgebrochen werden, sodaß der erforderliche Halt der Dämmplatten unter ihrem Eigengewicht nicht gewährleistet ist. Glasfaser- oder Steinwollematten haben darüberhinaus die Tendenz Feuchtigkeit aufzunehmen, wodurch sie ein relativ hohes Flächengewrcht aufweisen können, was wiederum hohe An- forderungen an die Verankerung stellt.In the manufacture of reinforced concrete ceilings, which are to be equipped with thermal and / or acoustic insulation, it is customary to fasten corresponding insulating boards with dowels to such reinforced concrete ceilings. Similar to the subsequent thermal insulation of facades, glass fiber or rock wool mats are mostly used, which can be subsequently attached to the hardened ceiling. If such glass fiber or rock wool mats or other known insulation boards are to be introduced directly in one step during the manufacture of the reinforced concrete ceiling, appropriate anchors must generally be provided, which are subsequently washed with in-situ concrete so that they are anchored in the concrete. However, such anchors hinder the introduction of reinforcing steel mats and there is always the risk that such anchors will be bent or broken off to fix insulation panels when inserting reinforcement steel mats, so that the required hold of the insulation panels under their own weight is not guaranteed. Glass fiber or rock wool mats also have a tendency to absorb moisture, which means that they can have a relatively large surface area, which in turn places high demands on the anchoring.
Für Wärmedämmungen an Fassaden sind Polystyrolhartschaumplatten oder extrudierte Schaumplatten bekanntgeworden, welche an Fassaden geklebt und dann beschichtet werden. Aus der EP 672 216 Bl ist schließlich eine derartige Fassadendämm- platte aus Polystyrolschaumstoff-Leichtbeton bekanntgeworden, welche eine Rohdichte zwischen 0,2 und 0,35 kg/1 aufweist und mit welchen bei Materialstärken von 16 bis 18 cm K-Werte von ca. 0,4 W/m^ K erzielt werden können. Derartige bekannte Dämmplatten enthalten zementleimgebundene zerkleinerte Polystyrolschaumabfälle, deren Korngröße zwischen 2 und 15 mm betragen, um die geforderte Rohdichte zu erzielen. Im Ergebnis stellen derartige Wärmedämmplatten, wie sie für Fassaden bekannt sind und in der Regel nachträglich unter Verwendung von Lattenrosten festgelegt werden, eine wasserbeständige und gegen Feuchtigkeitsaufnahme weitgehend resistente offenporige Struk- tur dar, in welcher die Polystyrolschaumabfälle homogen eingebettet sind. Derartige Platten lassen sich leicht bearbeiten und mit üblichen Werkzeugen formgebend bearbeiten.Polystyrene hard foam sheets or extruded foam sheets have become known for thermal insulation on facades, which are glued to facades and then coated. Finally, such a facade insulation board made of polystyrene foam lightweight concrete has become known from EP 672 216 B1, which has a bulk density between 0.2 and 0.35 kg / l and with which K values of approx. 0.4 W / m ^ K can be achieved with material thicknesses of 16 to 18 cm. Known insulation boards of this type contain shredded polystyrene foam waste bound to cement paste, the grain size of which is between 2 and 15 mm in order to achieve the required bulk density. As a result, such thermal insulation panels, as are known for facades and are generally defined subsequently using slatted frames, represent a water-resistant and largely moisture-resistant open-pore structure in which the polystyrene foam waste is homogeneously embedded. Such plates can be easily machined and shaped using conventional tools.
Die Erfindung zielt nun darauf ab, ein Verfahren der eingangs genannten Art zur Herstellung von mit Bewehrungsstahlmatten versehenen Stahlbetondecken zu schaffen, bei welcher die Einbringung einer Wärme- und/oder Schallschutzdämmung ohne Zuhilfenahme von Ankern erfolgen kann, sodaß in einem einzigen Arbeitsgang unmittelbar eine Stahlbetondecke geschaffen wird, an welcher eine Dämmplatte ohne Zwischenschaltung von Klebern oder Ankern hochfest festgelegt ist.The invention now aims to provide a method of the type mentioned for the manufacture of reinforced concrete ceilings provided with reinforcing steel mats, in which the introduction of thermal and / or acoustic insulation can be done without the aid of anchors, so that a reinforced concrete ceiling is created in a single operation on which an insulation board is fixed with high strength without the interposition of glue or anchors.
Zur Lösung dieser Aufgabe besteht das erfindungsgemäße Verfahren im wesentlichen darin, daß als Dämmplatte eine Platte aus zementleimgebundenen expandierten Polystyrolteilchen eingesetzt wird. Dadurch, daß als Dämmplatte eine für Fassadenplatten an sich bekannte Platte aus zementleimgebundenen expandierten Polystyrolteilchen eingesetzt wird, kann nun überraschenderweise auf die Verwendung von Ankern verzichtet werden. Für die Herstellung einer derartigen Stahlbetondecke genügt es, auf die Dämmplatte die entsprechenden Bewehrungsstahlmatten aufzubringen und unmittelbar Ortsbeton aufzugießen. Aufgrund der offenporigen Struktur und der Zementleimbindung der Polystyrolteilchen der Platten dringt Wasser und Beton teilweise in die dem Beton benachbarte Grenzfläche der Dämmplatten ein, wobei mit Zementresten und dem Ortsbeton eine hochfeste sichere Verankerung gelingt, welche auch hohen Scherbeanspruchungen und Zugbeanspruchungen standhält. Entsprechende Versuche haben ein hohes Maß an Feuchtigkeitsun- empfindlichkeit und bei Versuchen einer mechanischen Ablösung ergeben, daß Bruchstellen, wie sie durch Einwirkung von Werk- zeugen erzielt werden können, lediglich in der Dämmmaterialschicht, nicht aber in der Grenzschicht, zum Beton auftreten, sodaß auch eine hohe Scherbeanspruchung gewährleistet ist. Eine zusätzliche Verklebung kann ebenso entfallen, wie in den meisten Fällen auch auf eine Schalung verzichtet werden kann, da derartige Dämmplatten selbst als verlorene Schalung verwendbar sind. Bevorzugt wird daher die erfindungsgemäße Stahlbetondecke so aufgebaut, daß die Dämmplatten als verlorene Schalung eingesetzt werden.To achieve this object, the method according to the invention essentially consists in that a plate made of cement paste-bonded expanded polystyrene particles is used as the insulation board. The fact that a board made of cement paste-bonded expanded polystyrene particles known per se for facade boards is used as the insulation board can surprisingly be dispensed with the use of anchors. For the production of such a reinforced concrete ceiling, it is sufficient to apply the corresponding reinforcing steel mats to the insulation board and to pour in-situ concrete. Due to the open-pore structure and the cement paste bond of the polystyrene particles of the panels, water and concrete partially penetrate into the boundary surface of the insulation panels adjacent to the concrete, whereby cement residues and the in-situ concrete ensure a high-strength, secure anchoring, which is also high Withstands shear and tensile loads. Corresponding tests have shown a high degree of sensitivity to moisture and, in the case of attempts to mechanically detach them, have shown that fractures, as can be achieved by the action of tools, only occur in the insulation material layer, but not in the boundary layer, with the concrete, so that also a high shear stress is guaranteed. Additional gluing can also be dispensed with, as in most cases there is also no need for formwork, since insulation boards of this type can themselves be used as lost formwork. The reinforced concrete ceiling according to the invention is therefore preferably constructed so that the insulation boards are used as lost formwork.
Eine besonders hohe Haftfähigkeit und Integration der Dämmplatte in die Grenzschicht zum Beton gelingt mit Vorteil dann, wenn so vorgegangen wird, daß der Zementleim der Dämmplatten vor dem Aufbringen des Ortsbetons unvollständig hydratisiert ist .A particularly high level of adhesion and integration of the insulation board in the boundary layer to the concrete is advantageously achieved if the procedure is followed such that the cement paste of the insulation boards is not fully hydrated before the in-situ concrete is applied.
Da im Rahmen des erfindungsgemäßen Verfahrens auf Anker jed- welcher Art verzichtet werden kann, kann mit Vorteil so vorgegangen werden, daß die Bewehrungsstahlmatten unmittelbar auf die Dämmplatten aufgelegt werden, ohne daß hiebei die Gefahr besteht, daß die üblicherweise verwendeten Anker durch Verbiegen oder Zerstören beim Einbringen der Bewehrungsstahlmatten unwirksam werden.Since anchors of any kind can be dispensed with in the context of the method according to the invention, the procedure can advantageously be such that the reinforcing steel mats are placed directly on the insulation panels without there being a risk that the usually used anchors may be bent or destroyed when Introducing the reinforcing steel mesh will become ineffective.
Eine entsprechende Wärme- und/oder Schallschutzdämmung läßt sich in einfacher Weise dadurch erzielen, daß die Dämmplatten mit einer Stärke von 50 bis 250 mm eingesetzt werden.Appropriate thermal and / or acoustic insulation can be achieved in a simple manner by using the insulation boards with a thickness of 50 to 250 mm.
Insgesamt ergibt sich durch die erfindungsgemäße Ausbildung ein problemloses Verlegen der Bewehrung ohne Beschädigung der Platten, wobei in vielen Fällen insbesondere im Bereich von Aufkantungen derartige Dämmplatten als verlorene Schalung verwendet werden können. Neben einer leichten Ver- und Bearbei- tung mit üblichen Werkzeugen, wie z.B. Kreissägen, gelingt auch ein exaktes Anarbeiten an Baubestand. Neben dem eigenen geringen Gewicht der im Rahmen der Erfindung zum Einsatz gelangenden Dämmplatten wird auch ein gutes optisches Erscheinungsbild, geringer Verschnitt und eine rasche und unkomplizierte Verarbeitung erzielt. Aufgrund der Zementleimbindung wird gleichzeitig ein hohes Maß an Feuchtigkeitsunempfindlich- keit erzielt. Overall, the design according to the invention results in problem-free laying of the reinforcement without damaging the panels, and in many cases, in particular in the area of upstands, such insulating panels can be used as lost formwork. In addition to easy processing and With conventional tools, such as circular saws, precise work can also be carried out on existing buildings. In addition to the own low weight of the insulation boards used in the context of the invention, a good visual appearance, low waste and rapid and uncomplicated processing are also achieved. Due to the cement paste bond, a high degree of moisture resistance is achieved at the same time.

Claims

Patentansprüche : Claims:
1. Verfahren zur Herstellung von mit einer Wärme- und/oder Schallschutzdämmung ausgestatteten Stahlbetondecken, bei wel- chem auf eine Schalung eine Dämmplatte, Bewehrungsstahlmatten und Beton aufgebracht werden, dadurch gekennzeichnet, daß als Dämmplatte eine Platte aus zementleimgebundenen expandierten Polystyrolteilchen eingesetzt wird.1. A process for the production of reinforced concrete ceilings equipped with thermal and / or soundproofing insulation, in which an insulation board, reinforcing steel mats and concrete are applied to a formwork, characterized in that a board made of expanded cemented polystyrene particles is used as the insulation board.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Zementleim der Dämmplatten vor dem Aufbringen des Ortsbetons unvollständig hydratisiert ist.2. The method according to claim 1, characterized in that the cement paste of the insulation boards is incompletely hydrated before applying the in-situ concrete.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß- die Bewehrungsstahlmatten unmittelbar auf die Dämmplatten aufgelegt werden.3. The method according to claim 1 or 2, characterized in that the reinforcing steel mats are placed directly on the insulation panels.
4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Dämmplatten als verlorene Schalung eingesetzt werden.4. The method according to claim 1, 2 or 3, characterized in that the insulation panels are used as lost formwork.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Dämmplatten mit einer Stärke von 50 bis 250 mm eingesetzt werden. 5. The method according to any one of claims 1 to 4, characterized in that the insulation boards are used with a thickness of 50 to 250 mm.
PCT/AT2001/000316 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation WO2002031284A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PL01356881A PL356881A1 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation
EP01971464A EP1328692A1 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation
HU0204077A HUP0204077A2 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation
AU2001291464A AU2001291464A1 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation
SK970-2002A SK9702002A3 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation
JP2002534640A JP2004510904A (en) 2000-10-12 2001-10-04 Method of manufacturing reinforced concrete floor with heat and / or sound insulation means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0075700U AT5034U1 (en) 2000-10-12 2000-10-12 METHOD FOR THE PRODUCTION OF STEEL CONCRETE COVERS EQUIPPED WITH HEAT AND / OR SOUND INSULATION
ATGM757/2000 2000-10-12

Publications (1)

Publication Number Publication Date
WO2002031284A1 true WO2002031284A1 (en) 2002-04-18

Family

ID=3498978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2001/000316 WO2002031284A1 (en) 2000-10-12 2001-10-04 Method for production of reinforced concrete floors with a heat and/or sound insulation

Country Status (9)

Country Link
EP (1) EP1328692A1 (en)
JP (1) JP2004510904A (en)
AT (1) AT5034U1 (en)
CZ (1) CZ20022291A3 (en)
HU (1) HUP0204077A2 (en)
PL (1) PL356881A1 (en)
RU (1) RU2002127599A (en)
SK (1) SK9702002A3 (en)
WO (1) WO2002031284A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628457A1 (en) * 1976-06-25 1978-01-05 Werner Mitschrick Thin concrete panels for covering walls or ceilings - where panel has one layer of concrete reinforced by glass fibres
DE3332645A1 (en) * 1983-09-09 1985-04-04 Rastra AG, Pfäffikon, Freienbach Prefabricated ceiling element in slab form for buildings
US4811770A (en) * 1986-03-25 1989-03-14 Rapp Albert B Structural element for a building
EP0649948A2 (en) * 1993-10-23 1995-04-26 WEBER HAUS GmbH & Co. KG Building element for making concrete floors
GB2303862A (en) * 1995-08-01 1997-03-05 Pinchas Even A ceiling and a method of constructing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628457A1 (en) * 1976-06-25 1978-01-05 Werner Mitschrick Thin concrete panels for covering walls or ceilings - where panel has one layer of concrete reinforced by glass fibres
DE3332645A1 (en) * 1983-09-09 1985-04-04 Rastra AG, Pfäffikon, Freienbach Prefabricated ceiling element in slab form for buildings
US4811770A (en) * 1986-03-25 1989-03-14 Rapp Albert B Structural element for a building
EP0649948A2 (en) * 1993-10-23 1995-04-26 WEBER HAUS GmbH & Co. KG Building element for making concrete floors
GB2303862A (en) * 1995-08-01 1997-03-05 Pinchas Even A ceiling and a method of constructing the same

Also Published As

Publication number Publication date
EP1328692A1 (en) 2003-07-23
RU2002127599A (en) 2004-02-20
PL356881A1 (en) 2004-07-12
HUP0204077A2 (en) 2003-03-28
AT5034U1 (en) 2002-02-25
CZ20022291A3 (en) 2003-01-15
JP2004510904A (en) 2004-04-08
SK9702002A3 (en) 2003-10-07

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