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EP2369075A1 - External wall system for a building - Google Patents

External wall system for a building Download PDF

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Publication number
EP2369075A1
EP2369075A1 EP11152608A EP11152608A EP2369075A1 EP 2369075 A1 EP2369075 A1 EP 2369075A1 EP 11152608 A EP11152608 A EP 11152608A EP 11152608 A EP11152608 A EP 11152608A EP 2369075 A1 EP2369075 A1 EP 2369075A1
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EP
European Patent Office
Prior art keywords
masonry
wall system
exterior wall
coating
thermal insulation
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Granted
Application number
EP11152608A
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German (de)
French (fr)
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EP2369075B1 (en
Inventor
Peter Dr. Langer
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Xella Technologie und Forschungs GmbH
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Xella Technologie und Forschungs GmbH
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Publication of EP2369075A1 publication Critical patent/EP2369075A1/en
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    • 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
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/562—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with fillings between the load-bearing elongated members

Definitions

  • the invention relates to a monolithic, heat-insulating exterior wall system of a building.
  • Another construction of an outer wall with a monolithic lining is from the DE 20 2008 008 807 Ul known.
  • This prior art is based on a skeleton frame with vertical skeleton frame whose free space is lined with at least one non-structural component.
  • the known liners should be heat-insulating and have low building wall thickness and only carry their own load and any acting on the outside of the device surfaces, wind loads while the building loads practicing the structural skeleton of the building to be included.
  • the components have a width of 0.1 to 4.5 m and a vertical length of 2.5 to 12.0 m.
  • connecting means between juxtaposed components are provided, for example in the form of mineral or non-mineral adhesive or positive or non-positive connection foils.
  • the connecting means can also be folded or groove connections, screw connections or adhesive connections.
  • the components may be made of cellular concrete, mineral foam, rigid foam, foam glass or sandwich elements, consisting of a highly effective sound and heat insulation material.
  • a weather-resistant outer layer can be applied to the components and, on the inside, an inner layer suitable for a living space can be applied. This construction is very complicated in terms of the construction of the components and the equipment for receiving wind loads.
  • the object of the invention is to provide a monolithic, heat-insulating exterior masonry system that can be made relatively thin with very good thermal insulation, especially from marketable, mineral stones, easy to assemble and adaptable to different wall dimensions and its material use is relatively low and inexpensive.
  • the invention provides in a building construction for the outer wall, a structure of horizontal and vertical support elements, such as pillars and beams before.
  • the structure takes on the building loads and tensile forces and can be created eg in a steel skeleton construction or from vertical reinforced concrete pillars and horizontal reinforced concrete beams, wherein the free between the support elements personallywandungsraum with a not bearing masonry from a variety of highly heat-insulating stones or moldings is lined.
  • the outside air-insulating exterior walls of a building e.g. Residential building, formed by a non-supporting, heat-insulating, monolithic exterior wall system, which is not formed from large, prefabricated wall elements, but from a infill of a vertical frame with non-sustainable, highly insulating, successive and juxtaposed mineral insulation stones as a core masonry, within a or is walled up immediately in front of or behind a vertical framework.
  • the outer wall system according to the invention can e.g. also be built as Ausfachungsmauer work in residential buildings, which are traditionally made in reinforced concrete skeleton construction, and here replace the commonly used traditional sustainable Ausfachungsmauerwerk, with the very good thermal insulation properties significant savings in both heating and cooling energy consumption.
  • the non-load-bearing outer walls of the invention which are monolithically designed by the purpose of the invention, primarily have a space-terminating and insulating, in particular heat-insulating, function. They are also able to carry their own weight and horizontal, eg wind generated forces and derive with appropriate transmission means in the static load-bearing construction. Without upgrading the core masonry is not able to suffer these forces due to low tensile strength of mineral Dämmsteine.
  • the connections of the monolithic outer wall to the static-carrying parts of the house construction is designed so that a power transmission is ensured, which the skilled artisan can easily and without further instructions.
  • the invention thus provides a completely new use of known solid Dämmsteinen with porous mineral structure, but so far have been used only for pure insulation purposes in addition to a masonry.
  • All vertical forces acting on and in a building are e.g. over the roof and ceiling construction, over static supporting, stiffening interior walls and over e.g. the steel columns in the outer wall are derived into a foundation. Accordingly, e.g. the steel supports where load-bearing interior walls can not perform this function, e.g. at the building corners.
  • An outer wall infill masonry 1 according to the invention is e.g. in a rectangular frame of supporting vertical columns and horizontal beams of a building (not shown).
  • the outer wall infill masonry 1 consists of a core masonry 4 and at least one upgrade coating 3.
  • the core masonry 4 is bricked up from each other and juxtaposed mineral dresseddämmsteinen 2, the upgrading coating 3 is arranged on the core masonry 4 over the entire surface on at least one outer surface or broad side surface of the core masonry 4 frictionally , resulting in the monolithic structure of the outer wall according to the invention.
  • the Dämmsteine 2 have, for example, the following dimensions: Length: 500 to 800 mm Width: 200 to 500 mm Height: 200 to 500 mm.
  • the insulating blocks 2 preferably consist of solidified mineral, porous structures, e.g. from a porosized calcium silicate hydrate structure of a calcium silicate hydrate scaffold 8 and pores 9.
  • the compressive strength of the Dämmsteine is for example between 0.20 and 0.80, in particular between 0.25 and 0.50 N / mm 2 and the tensile strength, for example between 0.04 and 0.16, in particular between 0.05 and 0.12 N / mm 2 .
  • the calculated value ⁇ of the thermal conductivity of the insulating stones is e.g. between 0.03 and 0.07, in particular between 0.04 and 0.05 W / mK.
  • the apparent density is, for example, between 80 and 150, in particular between 100 and 130 kg / m 3 .
  • a reinforced mineral lightweight adhesive mortar is preferably used as a work-hardening coating.
  • the mortar consists for example of at least one mineral hydraulic binder, for example of Portland cement and / or Baukalk and at least an aggregate with eg grain-graded grading curve to 2 mm.
  • the cured to a plaster 6 mortar has, for example, a compressive strength between 1.5 and 5.0 N / mm 2 .
  • the coating is e.g. 3 to 8 mm, in particular 4 to 6 mm thick.
  • the glass mesh fabric 5 has expediently alkali-resistant Glasfäden, wherein Glasgittermaschenweiten eg between 3 and 7 mm tear strengths eg between 1.9 kN / 5 cm and 2.7 kN / 5 cm and basis weights between 160 and 210 g / m 2 are used.
  • the coating 3 of the invention is flexible perpendicular to its plane, but can absorb tensile forces in the plane in all directions through the grid reinforcement.
  • the coating is tensile-resistant via a mineral composite and shear-resistant connected to the insulating blocks (non-positively).
  • the outer wall according to the invention is produced in the usual masonry technique from the mineral Dämmsteinen, wherein expediently the Dämmsteine are preferably glued only in the horizontal bearing joint.
  • the material of the bond 7 is expediently identical to the coating mortar material, wherein here only preferably a textile reinforcement, e.g. a mesh fabric is inserted.

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

Abstract

The system has a monolithic outer wall bracing brickwork (1) as a core element comprising a non-supporting core brickwork (4) of mineral, porous thermal insulation stones (2). A retrofitting coating (3) is completely applied on broad side surfaces of the core brickwork in a force-fit manner. The retrofitting coating has a plaster with a reinforcement element with a bending resistance of the retrofitting coating. A derivation part derives horizontal forces from the brickwork and is provided between a structural skeleton frame and the monolithic brickwork. The thermal insulation stones consist of foam concrete, aerated concrete or foam glass.

Description

Die Erfindung betrifft ein monolithisches, wärmedämmendes Außenwandsystem eines Gebäudes.The invention relates to a monolithic, heat-insulating exterior wall system of a building.

Stand der Technik ist, ein tragendes, nicht wärmedämmendes Mauerwerk wärmedämmend auszugestalten, indem ein wärmeisolierendes Wandsystem außenseitig vorgeordnet wird ( DE 690 00 969 T2 ). Diese Technologie ist aufwendig bezüglich Material- und Arbeitseinsatz.The state of the art is to provide a load-bearing, non-thermal insulating masonry thermal insulation by a heat-insulating wall system is arranged on the outside ( DE 690 00 969 T2 ). This technology is expensive in terms of materials and labor.

Stand der Technik sind zudem hoch wärmedämmende, monolithische, tragende Außenwände, die aber außerordentlich dick sein müssen. Dadurch geht Wohnraum verloren, die Fensterdurchgänge bekommen Schießschartencharakter und der Materialeinsatz ist sehr groß und teuer.State of the art are also highly insulating, monolithic, supporting outer walls, but must be extremely thick. As a result, housing is lost, the window passages get loopholes and the use of materials is very large and expensive.

Aus der DE 195 25 508 A1 ist ein Verfahren bekannt zur nachträglichen Verbesserung von Bauteilen aus Stahlbeton oder Mauerwerk in Bezug auf Tragfähigkeit, Gebrauchstauglichkeit und Dauerhaftigkeit (nachträgliche Ertüchtigung), bei dem eine besondere Laminatbeschichtung auf die Oberfläche der Bauteile aufgebracht wird in Form einer Zementmörtelschicht, in die ein Maschen aufweisendes textiles Halbzeug aus Fasern eingebracht wird.From the DE 195 25 508 A1 A method is known for the subsequent improvement of reinforced concrete or masonry components in terms of carrying capacity, serviceability and durability (subsequent improvement), in which a special laminate coating is applied to the surface of the components in the form of a cement mortar layer, in the stitched textile semifinished product is introduced from fibers.

Eine weitere Bauweise einer Außenwand mit einer monolithischen Auskleidung ist aus der DE 20 2008 008 807 Ul bekannt. Dieser Stand der Technik geht von einem Tragwerk-Skelett mit vertikalen Skelettrahmen aus, deren Freiraum mit mindestens einem nicht tragenden Bauelement ausgekleidet ist. Die bekannten Auskleidungen sollen wärmedämmend sein und geringe Gebäudewandungsstärke aufweisen und lediglich ihre eigene Last und etwaige, von außen auf die Bauelementflächen wirkende, Windlasten tragen, während die Gebäudelasten üben das Tragwerk-Skelett des Gebäudes aufgenommen werden. Die Bauelemente weisen eine Breite von 0,1 bis 4,5 m und eine vertikale Länge von 2,5 bis 12,0 m auf. Zur Aufnahme von Windlasten sind Verbindungsmittel zwischen aneinander gefügten Bauelementen vorgesehen, z.B. in Form von mineralischem oder nichtmineralischem Klebstoff oder form- oder kraftschlüssigen Verbindungsfolien. Die Verbindungsmittel können auch Falz- oder Nutverbindungen, Schraubverbindungen oder Klebeverbindungen sein. Die Bauelemente können aus Porenbeton, Mineralschaum, Hartschaum, Schaumglas oder aus Sandwichelementen, bestehend aus einem hoch wirksamen Schall- und Wärmedämmstoff, hergestellt sein. Wandaußenseitig kann auf die Bauelemente eine witterungsbeständige Außenschicht und innenseitig eine für einen Wohnraum geeignete Innenschicht aufgebracht sein. Diese Bauweise ist sehr aufwendig bezüglich der Erstellung der Bauelemente und der Ausrüstungsmittel für die Aufnahme von Windlasten.Another construction of an outer wall with a monolithic lining is from the DE 20 2008 008 807 Ul known. This prior art is based on a skeleton frame with vertical skeleton frame whose free space is lined with at least one non-structural component. The known liners should be heat-insulating and have low building wall thickness and only carry their own load and any acting on the outside of the device surfaces, wind loads while the building loads practicing the structural skeleton of the building to be included. The components have a width of 0.1 to 4.5 m and a vertical length of 2.5 to 12.0 m. For receiving wind loads connecting means between juxtaposed components are provided, for example in the form of mineral or non-mineral adhesive or positive or non-positive connection foils. The connecting means can also be folded or groove connections, screw connections or adhesive connections. The components may be made of cellular concrete, mineral foam, rigid foam, foam glass or sandwich elements, consisting of a highly effective sound and heat insulation material. On the outside of the wall, a weather-resistant outer layer can be applied to the components and, on the inside, an inner layer suitable for a living space can be applied. This construction is very complicated in terms of the construction of the components and the equipment for receiving wind loads.

Aufgabe der Erfindung ist, ein monolithisches, wärmedämmendes Außenmauerwerksystem zu schaffen, das bei sehr guter Wärmedämmung relativ dünn ausgestaltet werden kann, insbesondere aus marktgängigen, mineralischen Steinen, einfach aufbaubar und an unterschiedliche Mauerabmessungen anpassbar und dessen Materialeinsatz relativ gering und preiswert ist.The object of the invention is to provide a monolithic, heat-insulating exterior masonry system that can be made relatively thin with very good thermal insulation, especially from marketable, mineral stones, easy to assemble and adaptable to different wall dimensions and its material use is relatively low and inexpensive.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung werden in den von diesem Anspruch abhängigen Unteransprüchen gekennzeichnet.This object is solved by the features of claim 1. Advantageous developments of the invention are characterized in dependent on this claim subclaims.

Die Erfindung sieht in einer Gebäudekonstruktion für die Außenwand ein Tragwerk aus horizontalen und vertikalen Tragelementen, z.B. aus Pfeilern und Balken, vor. Das Tragwerk nimmt die Gebäudelasten und Zugkräfte auf und kann z.B. in einer Stahlskelettbauweise oder aus vertikalen Stahlbetonpfeilern und horizontalen Stahlbetonbalken erstellt sein, wobei der zwischen den Tragelementen freie Außenwandungsraum mit einem nicht tragenden Mauerwerk aus einer Vielzahl hoch wärmedämmender Steine bzw. Formkörper ausgekleidet wird.The invention provides in a building construction for the outer wall, a structure of horizontal and vertical support elements, such as pillars and beams before. The structure takes on the building loads and tensile forces and can be created eg in a steel skeleton construction or from vertical reinforced concrete pillars and horizontal reinforced concrete beams, wherein the free between the support elements Außenwandungsraum with a not bearing masonry from a variety of highly heat-insulating stones or moldings is lined.

Durch die Verwendung von wärmedämmenden und vorzugsweise auch schalldämmenden Elementen in üblichen Steinformaten mit sehr geringer Festigkeit ist die Gestaltung eines Kernmauerwerks der Außenwand durch einfache Ausfachung unkompliziert. Unkompliziert ist auch die erfindungsgemäße Ertüchtigung des Kernmauerwerks mit einem relativ einfach ausgebildeten Armierungssystem, das senkrecht zur Mauerebene durch z.B. Winddruck oder Windsog bewirkte Zugkräfte aufnehmen kann.Through the use of heat-insulating and preferably also sound-insulating elements in conventional stone formats with very low strength, the design of a core masonry of the outer wall by simple infill is straightforward. The invention of the core masonry with a relatively simple reinforcing system which is perpendicular to the wall plane by means of e.g. Wind pressure or wind suction can absorb tensile forces.

Bei der Erfindung werden die gegen das Außenklima dämmenden Außenwände eines Gebäudes, z.B. Wohngebäudes, durch ein nicht tragendes, wärmedämmendes, monolithisches Außenwandsystem gebildet, das nicht aus großdimensionierten, vorgefertigten Wandelementen, sondern aus einer Ausfachung eines vertikalen Tragwerkrahmens mit nicht tragfähigen, hoch wärmedämmenden, aufeinander und gegeneinander gesetzten mineralischen Dämmstoffsteinen als Kernmauerwerk ausgebildet ist, das innerhalb eines oder unmittelbar vor oder hinter einem vertikalen Tragwerkrahmens hochgemauert ist.In the invention, the outside air-insulating exterior walls of a building, e.g. Residential building, formed by a non-supporting, heat-insulating, monolithic exterior wall system, which is not formed from large, prefabricated wall elements, but from a infill of a vertical frame with non-sustainable, highly insulating, successive and juxtaposed mineral insulation stones as a core masonry, within a or is walled up immediately in front of or behind a vertical framework.

Das erfindungsgemäße Außenwandsystem kann z.B. auch als Ausfachungsmauerwerk in Wohngebäuden, die traditionell in Stahlbeton-Skelett-Bauweise erstellt werden, eingebaut werden und hier das üblicherweise verwendete traditionelle tragfähige Ausfachungsmauerwerk ersetzen, wobei durch die sehr guten Wärmedämmeigenschaften erhebliche Einsparungen sowohl bei Heizals auch bei Kühlenergieverbrauch ermöglicht werden.The outer wall system according to the invention can e.g. also be built as Ausfachungsmauer work in residential buildings, which are traditionally made in reinforced concrete skeleton construction, and here replace the commonly used traditional sustainable Ausfachungsmauerwerk, with the very good thermal insulation properties significant savings in both heating and cooling energy consumption.

Die erfindungsgemäßen, nicht tragenden, durch die Ertüchtigung monolithisch ausgebildeten Außenwände haben primär eine Raum abschließende und dämmende, insbesondere wärmedämmende Funktion. Sie sind zudem in der Lage, ihr Eigengewicht zu tragen und horizontale, z.B. durch Wind erzeugte Kräfte aufzunehmen und mit entsprechenden Übertragungsmitteln in die statisch tragende Konstruktion abzuleiten. Ohne Ertüchtigung ist das Kernmauerwerk nicht in der Lage, diese Kräfte zu erleiden wegen zu geringer Zugkraftfestigkeit der mineralischen Dämmsteine. Die Anschlüsse der monolithischen Außenwandung an die statisch tragenden Teile der Hauskonstruktion wird so ausgebildet, dass eine Kraftübertragung gewährleistet wird, was der Fachmann ohne weiteres und ohne weiter gehende Anleitungen ausführen kann.The non-load-bearing outer walls of the invention, which are monolithically designed by the purpose of the invention, primarily have a space-terminating and insulating, in particular heat-insulating, function. They are also able to carry their own weight and horizontal, eg wind generated forces and derive with appropriate transmission means in the static load-bearing construction. Without upgrading the core masonry is not able to suffer these forces due to low tensile strength of mineral Dämmsteine. The connections of the monolithic outer wall to the static-carrying parts of the house construction is designed so that a power transmission is ensured, which the skilled artisan can easily and without further instructions.

Die Erfindung sieht somit eine völlig neue Verwendung von an sich bekannten massiven Dämmsteinen mit poröser mineralischer Struktur vor, die aber bisher nur für reine Dämmzwecke zusätzlich zu einem Mauerwerk verwendet worden sind.The invention thus provides a completely new use of known solid Dämmsteinen with porous mineral structure, but so far have been used only for pure insulation purposes in addition to a masonry.

Alle senkrechten Kräfte, die an und in einem Bauwerk wirken, werden z.B. über die Dach- und Deckenkonstruktion, über statisch tragende, aussteifende Innenwände und über z.B. die Stahlstützen in der Außenwand in ein Fundament abgeleitet. Dementsprechend stehen z.B. die Stahlstützen dort, wo tragende Innenwände diese Funktion nicht wahrnehmen können, z.B. an den Gebäudeecken.All vertical forces acting on and in a building are e.g. over the roof and ceiling construction, over static supporting, stiffening interior walls and over e.g. the steel columns in the outer wall are derived into a foundation. Accordingly, e.g. the steel supports where load-bearing interior walls can not perform this function, e.g. at the building corners.

Demgemäß ist bei der vorliegenden Erfindung neu, dass an sich bekannte quaderförmige Mineraldämmplatten bzw. Mineraldämmsteine, z.B. aus hoch wärmedämmendem, porosiertem Kalziumsilikathydratmaterial wie Mauerwerk verarbeitet werden, um eine Wand herzustellen. Diese Wand kann keine vertikalen Gebäudelasten aufnehmen und ist demzufolge für diese Beanspruchung als "nicht tragend" zu bezeichnen. Neu ist auch, diese aus "Dämmstoff" hergestellte Wand mit einem mit z.B. einem Glasgittergewebe bewerten Putz auf beiden Oberflächen so zu ertüchtigen, dass die Wand den Biegebeanspruchungen aus Wind mit ausreichender Sicherheit widersteht. Die aus der Windbeanspruchung resultierenden Horizontal- oder Querkräfte werden an den Auflagern der ertüchtigten Dämmstoffwand in die tragende Gebäudestruktur eingeleitet. Vorteilhaft ist, wenn diese durch Querkräfte beanspruchten Auflagerungen der Dämmstoffwand mit einem mineralischen, eine Gewebeeinlage aufweisenden Mörtel sowie zweckmäßigerweise auch durch konstruktive Ausbildung so ertüchtigt werden, dass die Auflagerungen diese Beanspruchungen aufnehmen können.Accordingly, in the present invention, it is new that cuboidal mineral insulating panels or mineral insulating stones known per se, for example made of highly heat-insulating, porous calcium silicate hydrate material such as masonry, are processed to produce a wall. This wall can not accommodate vertical building keys and is therefore to be considered as "non-load bearing" for this stress. It is also new to make this wall, made of "insulating material", with a plaster that is rated with, for example, a glass mesh fabric on both surfaces so that the wall withstands the bending stresses from wind with sufficient certainty. The resulting from the wind stress horizontal or lateral forces are applied to the Laying the upgraded insulation wall initiated in the load-bearing building structure. It is advantageous if these claimed by lateral forces deposits of the insulating wall with a mineral, a fabric insert mortar and expediently also by constructive training so ertüchtigt that the supports can absorb these stresses.

Anhang der Zeichnung wird die Erfindung im Folgenden beispielhaft näher erläutert. Es zeigen:

Fig. 1
perspektivisch einen Teilbereich eines erfindungsgemäßen Außenwandungsausfachungsmauerwerks mit einem Kernmauerwerk und einer Ertüchtigungsbeschichtung;
Fig. 2
schematisch einen Querschnitt durch einen Teilbereich eines erfindungsgemäßen Außenwandungsausfachungsmauerwerks;
Appendix of the drawing, the invention is explained in more detail below by way of example. Show it:
Fig. 1
in perspective, a portion of a Außenwandungsauswachsungsmauerwerks invention with a core masonry and a work-up coating;
Fig. 2
schematically a cross section through a portion of an outer wall Ausfachungsmauerwerks invention;

Ein erfindungsgemäßes Außenwandungsausfachungsmauerwerk 1 befindet sich z.B. in einem rechteckigen Rahmen aus tragenden vertikalen Stützen und horizontalen Balken eines Gebäudes (nicht dargestellt).An outer wall infill masonry 1 according to the invention is e.g. in a rectangular frame of supporting vertical columns and horizontal beams of a building (not shown).

Das Außenwandungsausfachungsmauerwerk 1 besteht aus einem Kernmauerwerk 4 und mindestens einer Ertüchtigungsbeschichtung 3. Das Kernmauerwerk 4 ist aus aufeinander und nebeneinander angeordneten mineralischen Wärmedämmsteinen 2 aufgemauert, wobei die Ertüchtigungsbeschichtung 3 auf dem Kernmauerwerk 4 vollflächig auf mindestens einer Außenfläche bzw. Breitseitenoberfläche des Kernmauerwerks 4 kraftschlüssig angeordnet ist, woraus der monolithische Aufbau der erfindungsgemäßen Außenwand resultiert.The outer wall infill masonry 1 consists of a core masonry 4 and at least one upgrade coating 3. The core masonry 4 is bricked up from each other and juxtaposed mineral Wärmedämmsteinen 2, the upgrading coating 3 is arranged on the core masonry 4 over the entire surface on at least one outer surface or broad side surface of the core masonry 4 frictionally , resulting in the monolithic structure of the outer wall according to the invention.

Die Dämmsteine 2 weisen z.B. folgende Abmessungen auf: Länge: 500 bis 800 mm Breite: 200 bis 500 mm Höhe: 200 bis 500 mm. The Dämmsteine 2 have, for example, the following dimensions: Length: 500 to 800 mm Width: 200 to 500 mm Height: 200 to 500 mm.

Die Dämmsteine 2 bestehen vorzugsweise aus verfestigten mineralischen, porösen Strukturen, z.B. aus einer porosierten Kalziumsilikathydratstruktur aus einem Kalziumsilikathydratsteggerüst 8 und Poren 9.The insulating blocks 2 preferably consist of solidified mineral, porous structures, e.g. from a porosized calcium silicate hydrate structure of a calcium silicate hydrate scaffold 8 and pores 9.

Die Druckfestigkeit der Dämmsteine liegt z.B. zwischen 0,20 und 0,80, insbesondere zwischen 0,25 und 0,50 N/mm2 und die Zugfestigkeit z.B. zwischen 0,04 und 0,16, insbesondere zwischen 0,05 und 0,12 N/mm2.The compressive strength of the Dämmsteine is for example between 0.20 and 0.80, in particular between 0.25 and 0.50 N / mm 2 and the tensile strength, for example between 0.04 and 0.16, in particular between 0.05 and 0.12 N / mm 2 .

Der Rechenwert λ der Wärmeleitfähigkeit der Dämmsteine liegt z.B. zwischen 0,03 und 0,07, insbesondere zwischen 0,04 und 0,05 W/mK.The calculated value λ of the thermal conductivity of the insulating stones is e.g. between 0.03 and 0.07, in particular between 0.04 and 0.05 W / mK.

Die Rohdichte liegt z.B. zwischen 80 und 150, insbesondere zwischen 100 und 130 kg/m3.The apparent density is, for example, between 80 and 150, in particular between 100 and 130 kg / m 3 .

Als Ertüchtigungsbeschichtung wird vorzugsweise ein bewehrter mineralischer Leichtklebemörtel verwendet. Der Mörtel besteht z.B. aus mindestens einem mineralischen hydraulischen Bindemittel, z.B. aus Portlandzement und/oder Baukalk und indestens einem Zuschlagstoff mit z.B. kornabgestufter Sieblinie bis 2 mm. Der zu einem Putz 6 ausgehärtete Mörtel weist z.B. eine Druckfestigkeit zwischen 1,5 und 5,0 N/mm2 auf.As a work-hardening coating, a reinforced mineral lightweight adhesive mortar is preferably used. The mortar consists for example of at least one mineral hydraulic binder, for example of Portland cement and / or Baukalk and at least an aggregate with eg grain-graded grading curve to 2 mm. The cured to a plaster 6 mortar has, for example, a compressive strength between 1.5 and 5.0 N / mm 2 .

Die Beschichtung ist z.B. 3 bis 8 mm, insbesondere 4 bis 6 mm dick.The coating is e.g. 3 to 8 mm, in particular 4 to 6 mm thick.

Quermittig im Beschichtungs-Putz 6 ist ein flächiges, z.B. textiles Bewehrungselement 5, z.B. ein Glasgittergewebe 5. Das Glasgittergewebe 5 weist zweckmäßigerweise alkaliresistente Glasfäden auf, wobei Glasgittermaschenweiten z.B. zwischen 3 und 7 mm Reißfestigkeiten z.B. zwischen 1,9 kN/5 cm und 2,7 kN/5 cm und Flächengewichte zwischen 160 und 210 g/m2 verwendet werden.Transversely in the coating plaster 6 is a planar, eg textile reinforcing element 5, for example a glass mesh fabric 5. The glass mesh fabric 5 has expediently alkali-resistant Glasfäden, wherein Glasgittermaschenweiten eg between 3 and 7 mm tear strengths eg between 1.9 kN / 5 cm and 2.7 kN / 5 cm and basis weights between 160 and 210 g / m 2 are used.

Die erfindungsgemäße Beschichtung 3 ist senkrecht zu ihrer Ebene flexibel, kann aber in der Ebene nach allen Richtungen durch die Gitterbewehrung Zugkräfte aufnehmen. Die Beschichtung ist über einen mineralischen Verbund zugfest und scherfest mit den Dämmsteinen verbunden (kraftschlüssig).The coating 3 of the invention is flexible perpendicular to its plane, but can absorb tensile forces in the plane in all directions through the grid reinforcement. The coating is tensile-resistant via a mineral composite and shear-resistant connected to the insulating blocks (non-positively).

Die erfindungsgemäße Außenwand wird in üblicher Mauerwerktechnik aus den mineralischen Dämmsteinen hergestellt, wobei zweckmäßigerweise die Dämmsteine vorzugsweise nur in der horizontalen Lagerfuge verklebt werden. Das Material der Verklebung 7 ist zweckmäßigerweise identisch mit dem Beschichtungsmörtelmaterial, wobei hier nur vorzugsweise eine textile Bewehrung, z.B. ein Gittergewebe, eingelegt wird.The outer wall according to the invention is produced in the usual masonry technique from the mineral Dämmsteinen, wherein expediently the Dämmsteine are preferably glued only in the horizontal bearing joint. The material of the bond 7 is expediently identical to the coating mortar material, wherein here only preferably a textile reinforcement, e.g. a mesh fabric is inserted.

Claims (7)

Wärmedämmendes Außenwandsystem eines Gebäudes, insbesondere eines Wohngebäudes, aufweisend einen vertikalen statisch tragenden Tragwerk-Skelettrahmen, dessen Freiraum ausgefacht ist mit einem monolithisch ausgebildeten, nicht tragenden Mauerwerk (1), wobei - das ausfachende Mauerwerk (1) als Kernelement ein nicht tragendes Kernmauerwerk (4) aus nebeneinander und aufeinander gesetzten, mineralischen, porösen Wärmedämmsteinen (2) aufweist - auf mindestens einer der beiden Breitseitenoberflächen des Kernmauerwerkes (4) vollflächig mindestens eine, die Wärmedämmsteine (2) übergreifende, die Aufnahme horizontaler Kräfte ermöglichende Ertüchtigungsbeschichtung (3) kraftschlüssig aufgebracht ist - die Ertüchtigungsbeschichtung (3) einen Putz (6) aufweist, der eine eine ausreichende Biegezugfestigkeit der Ertüchtigungsbeschichtung gewährleistende Bewehrung (5) enthält - zwischen dem Tragwerk-Skelettrahmen und dem monolithischen Mauerwerk (1) Mittel zur Ableitung von horizontalen, vom Mauerwerk (1) ausgehenden Kräften auf den Tragwerk-Skelettrahmen vorgesehen sind. Heat-insulating exterior wall system of a building, in particular a residential building, comprising a vertical structural skeleton frame carrying static, whose free space is filled with a monolithic, non-load-bearing masonry (1), wherein - The ausfachende masonry (1) as a core element has a non-supporting core masonry (4) of juxtaposed and successive, mineral, porous thermal insulation bricks (2) - On at least one of the two broad side surfaces of the core masonry (4) over the entire surface at least one, the thermal insulation bricks (2) cross, the horizontal forces enabling enabling coating (3) is frictionally applied - The screed coating (3) has a plaster (6), which contains a sufficient bending tensile strength of the screed coating ensuring reinforcement (5) - Between the frame skeleton frame and the monolithic masonry (1) means for dissipation of horizontal, from the masonry (1) outgoing forces are provided on the frame skeleton frame. Außenwandsystem nach Anspruch 1,
dadurch gekennzeichnet, dass die Wärmedämmsteine (2) folgende Abmessungen aufweisen: Länge: 500 bis 800 mm Breite: 200 bis 500 mm Höhe: 200 bis 500 mm.
Exterior wall system according to claim 1,
characterized in that the thermal insulation stones (2) have the following dimensions: Length: 500 to 800 mm Width: 200 to 500 mm Height: 200 to 500 mm.
Außenwandsystem nach Anspruch 1 und/oder 2,
dadurch gekennzeichnet, dass die Wärmedämmsteine (2) aus Schaumbeton oder Schaumglas oder Porenbeton bestehen.Exterior wall system according to claim 1 and / or 2,
characterized in that the thermal insulation bricks (2) consist of foam concrete or foam glass or aerated concrete. Außenwandsystem nach einem oder mehreren der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die Wärmedämmsteine (2) folgende Eigenschaften aufweisen: Druckfestigkeiten zwischen 0,20 und 0,80 N/mm2, insbesondere zwischen 0,25 und 0,50 N/mm2, Zugfestigkeiten zwischen 0,04 und 0,16 N/mm2, insbesondere zwischen 0,05 und 0,12 N/mm2, Wärmeleitfähigkeiten zwischen 0,03 und 0,07 W/mK, insbesondere zwischen 0,04 und 0,05 W/mK, Rohdichten zwischen 90 und 130 kg/m3, insbesondere zwischen 105 und 125 kg/m3.
Exterior wall system according to one or more of claims 1 to 3,
characterized in that the thermal insulation stones (2) have the following properties: compressive strength between 0.20 and 0.80 N / mm 2 , in particular between 0.25 and 0.50 N / mm 2 , tensile strengths between 0.04 and 0.16 N / mm 2 , in particular between 0.05 and 0.12 N / mm 2 , thermal conductivities between 0.03 and 0.07 W / mK, in particular between 0.04 and 0.05 W / mK, densities between 90 and 130 kg / m 3 , in particular between 105 and 125 kg / m 3 .
Außenwandsystem nach einem oder mehreren der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Ertüchtigungsbeschichtung (3) aus einem mineralischen Putz (6) besteht, der ein textiles Bewehrungselement (5), insbesondere in Form eines Glasgittergewebes aufweist.Exterior wall system according to one or more of claims 1 to 4,
characterized in that the upgrading coating (3) consists of a mineral plaster (6), which has a textile reinforcing element (5), in particular in the form of a glass mesh fabric. Außenwandsystem nach Anspruch 5,
dadurch gekennzeichnet, dass das Glasgittergewebe (5) aus alkaliresistenten Glasfäden besteht mit Reißfestigkeiten zwischen 1,9 und 2,7 KN/5 cm und Flächengewichten zwischen 160 und 210, insbesondere zwischen 160 und 210 g/cm2 aufweisen.Exterior wall system according to claim 5,
characterized in that the glass mesh fabric (5) consists of alkali-resistant glass fibers with tensile strengths between 1.9 and 2.7 KN / 5 cm and basis weights between 160 and 210, in particular between 160 and 210 g / cm 2 . Außenwandsystem nach Anspruch 5 und/oder 6,
dadurch gekennzeichnet, dass das Glasgittergewebe (5) Maschenweiten zwischen 3 und 7 mm aufweist.Exterior wall system according to claim 5 and / or 6,
characterized in that the glass mesh fabric (5) has mesh widths between 3 and 7 mm.
EP11152608.3A 2010-03-09 2011-01-28 External wall system for a building Active EP2369075B1 (en)

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CN108277895A (en) * 2018-03-21 2018-07-13 江苏省华建建设股份有限公司 A kind of composite heat preserving external wall system and construction method

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DE2451805A1 (en) * 1974-10-31 1976-05-06 Artur Muschaweck Composite, thermally insulating, wall coating (stucco) - comprises polyurethane foam, reinforced, mineral, stucco, and an optional acrylic binder
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EP2765251A1 (en) * 2013-02-12 2014-08-13 Daw Se Thermal insulation composite, in particular plate-shaped thermal insulation composite, and thermal insulation composite area in particular thermal insulation panel area, comprising composite thermal insulation or thermal insulation panels, and process for the preparation of thermal insulation composites, in particular thermal insulation panels, and use of thermal insulation composites, in particular thermal insulation panels, for the thermal insulation of buildings
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CN108277895A (en) * 2018-03-21 2018-07-13 江苏省华建建设股份有限公司 A kind of composite heat preserving external wall system and construction method

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DE102010010748A1 (en) 2011-09-15
EP2369075B1 (en) 2013-07-17

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