EP2182139B1 - Method for attaching a reinforcement or cladding to an existing builing part and building part with attached reinforcement or cladding - Google Patents

Method for attaching a reinforcement or cladding to an existing builing part and building part with attached reinforcement or cladding Download PDF

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Publication number
EP2182139B1
EP2182139B1 EP09013653.2A EP09013653A EP2182139B1 EP 2182139 B1 EP2182139 B1 EP 2182139B1 EP 09013653 A EP09013653 A EP 09013653A EP 2182139 B1 EP2182139 B1 EP 2182139B1
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EP
European Patent Office
Prior art keywords
reinforcement
building component
formwork
cladding
reinforcement mat
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.)
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EP09013653.2A
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German (de)
French (fr)
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EP2182139A2 (en
EP2182139A3 (en
Inventor
Stephan Hauser
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Hauser Stephan
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Individual
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Priority to PL09013653T priority Critical patent/PL2182139T3/en
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Publication of EP2182139A3 publication Critical patent/EP2182139A3/en
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    • 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
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • 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
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements

Definitions

  • the invention relates to a method for attaching a reinforcing or cladding layer of hydraulically settable material of a cement mortar or concrete mixture to a component by attaching a multi-layer reinforcement mat on the component and provides a formwork and in the space between the formwork and the component pourable cement mortar or concrete mixture.
  • Prefabricated plate-shaped concrete elements with a reinforcing mat of several layers of fabric with wire thicknesses in the range of 0.5mm - 3.5mm and mesh sizes of 5mm - 60mm are known from the WO 2009/049571 A1 ,
  • the filling can preferably be carried out by pumping / injection or by pouring in the cement mortar or concrete mix. On the skin consisting of putty skin can then be applied in a conventional manner a plaster.
  • the inventive method makes it possible, in particular perpendicular, inclined or inclined components with an outer reinforcement or cladding layer of z. Micro-reinforced high performance concrete without the use of e.g. to provide a steel formwork. By attaching the reinforcement mat with the subsequent puttying and the subsequent filling of a cement mortar or concrete mixture is compared to the conventional scarfing a simplified method for attaching a reinforcement or cladding layer to an existing component created.
  • the reinforcing mat 3 is mounted at a distance from the component 1.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Anbringen einer Verstärkungs- bzw. Verkleidungsschicht aus hydraulisch abbindbarem Material aus einem Zementmörtel- oder Betongemisch an einem Bauteil, indem man an dem Bauteil eine mehrlagige Bewehrungsmatte anbringt und eine Schalung vorsieht und in den Raum zwischen Schalung und dem Bauteil ein fließfähiges Zementmörtel- oder Betongemisch einfüllt.The invention relates to a method for attaching a reinforcing or cladding layer of hydraulically settable material of a cement mortar or concrete mixture to a component by attaching a multi-layer reinforcement mat on the component and provides a formwork and in the space between the formwork and the component pourable cement mortar or concrete mixture.

In der Zeitschrift " Baumaschinendienst", Heft 11/2003, Seiten 26 - 28 und 30 - 36 , ist ein Verfahren beschrieben bei dem man

  • eine vorhandene Bauwerkstütze mit einem Gewebe aus hochfesten Stahldrähten ummantelt bzw. umwickelt,
  • anschließend die ummantelte Stütze mit einer Stahlschalung einschalt,
  • von unten eine selbst verdichtende Betonmischung mit einer Betonpumpe in die Stahlschalung einpresst, und
  • nach z. B. 24 Stunden die Stütze ausschalt und ggf. weiterbehandelt.
In the magazine " Baumaschinenendienst ", Issue 11/2003, pages 26 - 28 and 30 - 36 , a method is described in which one
  • encasing or wrapping an existing structural support with a web of high strength steel wires,
  • then switch on the jacketed column with steel formwork,
  • from below presses a self-compacting concrete mixture with a concrete pump into the steel formwork, and
  • after z. B. 24 hours off the support and, if necessary, further treated.

In der JP 11 324 338 A von Okura Masatoshi aus dem Jahre 1999 ist ein gattungsgemäßes Verfahren zur Verstärkung eines Bauteils beschrieben. Dieses Verfahren besteht darin, dass man

  • mit Abstand von einem vorhandenen Bauteil mittels Befestigungsankern eine Verstärkungsplatte befestigt, die mit einer Vielzahl von Löchern versehen ist,
  • auf die Außenseite dieser Verstärkungsplatte eine aus FRP (fiber reinforced plastics) bestehende Hilfsplatte aufgeklebt,
  • in den Zwischenraum zwischen dem Bauwerk und der Verstärkungsplatte wird ein Füllmaterial eingefüllt, das man Aushärten lässt.
In the JP 11 324 338 A Okura Masatoshi from 1999 describes a generic method for reinforcing a component. This procedure is that one
  • fastened at a distance from an existing component by means of fastening anchors a reinforcing plate, which is provided with a plurality of holes,
  • glued to the outside of this reinforcing plate a FRP (fiber reinforced plastics) existing auxiliary plate
  • in the space between the building and the reinforcing plate, a filler is filled, which is allowed to cure.

Bei diesem bekannten wird in üblicher Weise eine Verstärkungsplatte als Schalungsplatte an dem Bauteil befestigt, um dann den Zwischenraum zwischen der Schalungsplatte und dem Bauwerk mit einem geeigneten aushärtbaren Material aufzufüllen.In this known, a reinforcing plate is attached as a formwork panel to the component in the usual manner, and then fill the gap between the formwork panel and the building with a suitable curable material.

Vorgefertigte plattenförmige Betonbauelemente mit einer Bewehrungsmatte aus mehreren Gewebelagen mit Drahtstärken im Bereich von 0,5mm - 3,5mm und Maschenweiten von 5mm - 60mm sind bekannt aus der WO 2009/049571 A1 .Prefabricated plate-shaped concrete elements with a reinforcing mat of several layers of fabric with wire thicknesses in the range of 0.5mm - 3.5mm and mesh sizes of 5mm - 60mm are known from the WO 2009/049571 A1 ,

Der Erfindung liegt die Aufgabe zugrunde, zum Anbringen einer Verstärkungs- bzw. Verkleidungsschicht auf einem insbesondere aus Beton bestehendem Bauteil auf eine solche Schalung verzichten zu können.The invention has for its object to be able to dispense with such a formwork for attaching a reinforcing or cladding layer on a particular existing concrete component.

Diese Aufgabe wird gelöst durch die Gegenstände des unabhängigen Anspruchs 1.This object is solved by the subject matters of independent claim 1.

Das Einfüllen kann vorzugsweise durch Pumpen/Injektion oder durch Einschütten des Zementmörtel- oder Betongemischs erfolgen. Auf die aus Spachtelmasse bestehende Außenhaut kann anschließend in üblicher Weise ein Putz aufgetragen werden.The filling can preferably be carried out by pumping / injection or by pouring in the cement mortar or concrete mix. On the skin consisting of putty skin can then be applied in a conventional manner a plaster.

Die Erfindung wird im Folgenden an Hand der Figuren 1 bis 5 beschrieben, die verschiedene Verstärkungs- bzw. Verkleidungsstrukturen zeigen.The invention will be described below with reference to the FIGS. 1 to 5 described which show various reinforcement or lining structures.

In einem ersten Schritt wird gemäß Figur 1 gegen das bestehende Bauteil 4 eine Bewehrungsmatte 3, die mehrere mindestens drei, vorzugsweise fünf und bis zu zwanzig oder mehr Gewebelagen mit Drahtstärken im Bereich von 0,5 bis 3,5 mm und Maschenweiten im Bereich von 2 mm bis 60 mm aufweist, entweder

  • flächig zur Anlage gebracht, oder
  • mit Abstand von dem Bauteil 4 an diesem befestigt, vorzugsweise mittels mechanischer Verankerungsmittel.
In a first step, according to FIG. 1 against the existing component 4, a reinforcing mat 3, which has a plurality of at least three, preferably five and up to twenty or more layers of fabric with wire thicknesses in the range of 0.5 to 3.5 mm and mesh sizes in the range of 2 mm to 60 mm, either
  • flat to the plant, or
  • at a distance from the component 4 attached thereto, preferably by means of mechanical anchoring means.

In die äußeren Gewebelagen der Bewehrungsmatte 3 wird in einem zweiten Schritt gemäß Figur 2 eine Spachtelmasse, vorzugsweise ein Spachtelmörtel, aus hydraulisch abbindbarem Material aus einem Zementmörtel- oder Betongemisch durch Eindrücken oder vorzugsweise Infiltration mittels eines Schlauchs eingebracht. Diese Spachtelmasse lässt man zur Bildung einer starren Außenhaut aushärten, wodurch eine Schalung 1 entsteht. In den Zwischenraum zwischen dieser Schalung 1 und dem Bauteil 4 wird anschließend gemäß Figur 3 ein vorzugsweise Betonzuschlags-körper enthaltendes Zementmörtel- oder Betongemisch 2 durch Pumpen/Injektion oder durch Einschütten eingebracht. Die Außenhaut kann anschließend,In the outer fabric layers of the reinforcing mat 3 is in a second step according to FIG. 2 a putty, preferably a filler mortar, introduced from hydraulically settable material of a cement mortar or concrete mixture by impressions or preferably infiltration by means of a hose. This filler is allowed to harden to form a rigid outer skin, whereby a formwork 1 is formed. In the space between this formwork 1 and the component 4 is then according to FIG. 3 a cement mortar or concrete mixture 2 containing preferably a concrete additive body introduced by pumping / injection or by pouring. The outer skin can then,

falls erwünscht, verputzt werden. Die in die Außenhaut integrierten Gewebelagen haben vorzugsweise geringere Drahtstärken und Maschenweiten als die innenliegenden Gewebelagen.if desired, plastered. The fabric layers integrated in the outer skin preferably have lower wire thicknesses and mesh sizes than the inner fabric layers.

Das erfindungsgemäße Verfahren ermöglicht es, insbesondere senkrecht, schräg oder geneigt stehende Bauteile mit einer äußeren Verstärkungs- oder Verkleidungsschicht aus z. B. mikrobewehrtem Hochleistungsbeton ohne die Verwendung z.B. einer Stahlschalung zu versehen. Durch das Anbringen der Bewehrungsmatte mit dem anschließenden Spachtelvorgang und dem anschließenden Einfüllen eines Zementmörtel- oder Betongemischs wird im Vergleich zum herkömmlichen Schalverfahren ein vereinfachtes Verfahren zum Anbringen einer Verstärkungs- oder Verkleidungsschicht an einem bestehendem Bauteil geschaffen.The inventive method makes it possible, in particular perpendicular, inclined or inclined components with an outer reinforcement or cladding layer of z. Micro-reinforced high performance concrete without the use of e.g. to provide a steel formwork. By attaching the reinforcement mat with the subsequent puttying and the subsequent filling of a cement mortar or concrete mixture is compared to the conventional scarfing a simplified method for attaching a reinforcement or cladding layer to an existing component created.

Die erfindungsgemäß verwendete, im wesentlichen steife Spachtelmasse unterscheidet sich von dem im wesentlichen fließfähigen, zwischen die Außenhaut bzw. Schalung und das bestehende Bauteil eingefüllte hydraulisch abbindbare Material durch seine Konsistenz, die definiert ist durch das sogenannte "Ausbreitmaß" als Kennzeichen für die Fließfähigkeit. Erfindungsgemäß wird vorzugsweise eine Spachtelmasse eingesetzt, deren Ausbreitmaß im Bereich von ca. 50 % des Ausbreitmaßes des zwischen die in situ gebildete Schalung und dem Bauteil eingefüllten fließfähigen Materials liegt.The substantially rigid putty used in the invention differs from the substantially flowable, between the outer skin or formwork and the existing component filled hydraulically settable material by its consistency, which is defined by the so-called "slump" as a mark of fluidity. According to the invention, a putty is preferably used whose slump is in the range of about 50% of the slump of the flowable material filled between the formwork formed in situ and the component.

Durch Verwendung einer Spachtelmasse, die als Füllstoff Fasern, insbesondere Kunststofffasern, enthält, wird die Verarbeitbarkeit der Spachtelmasse verbessert, wodurch auch ein zusätzlicher positiver Effekt durch die Erhöhung der Brandschutzeigenschaften der Außenhaut eintritt.By using a putty which contains as a filler fibers, especially plastic fibers, the workability of the filler is improved, whereby an additional positive effect by increasing the fire protection properties of the outer skin occurs.

Als Füllstoff kann grundsätzlich auch jedes andere Material verwendet werden, um den unterschiedlichsten Anforderungen Genüge zu leisten.In principle, any other material can also be used as a filler in order to satisfy a wide variety of requirements.

Die Bewehrungsmatte 3 wird vorzugsweise mittels mechanischer Verankerungselemente 5 an dem Bauteil 4 befestigt.The reinforcement mat 3 is preferably fastened to the component 4 by means of mechanical anchoring elements 5.

Die Bewehrungsmatte 3 kann gemäß Figur 4 vorzugsweise auch aus Gewebelagen 3a, 3b mit unterschiedlichen Drahtstärken und Maschenweiten bestehen.The reinforcing mat 3 can according to FIG. 4 preferably also consist of fabric layers 3a, 3b with different wire sizes and mesh sizes.

Gemäß Figur 5 ist die Bewehrungsmatte 3 im Abstand von dem Bauteil 1 angebracht.According to FIG. 5 the reinforcing mat 3 is mounted at a distance from the component 1.

Das erfindungsgemäße Verfahren eignet sich vorzugsweise zur nachträglichen Verstärkung von bestehenden Bauteilen in Form von Stützen bzw. Pfeilern, Wänden, Behältern, Decken, insbesondere Deckenunterseiten.The inventive method is preferably suitable for the subsequent reinforcement of existing components in the form of columns or pillars, walls, containers, ceilings, in particular ceiling undersides.

Claims (6)

  1. Method for attaching a reinforcing and/or cover layer, respectively, consisting of a hydraulically setting material of a cement mortar - or concrete mixture, respectively, to a building component by applying to the building component a formwork and by filling into the space between the formwork and the building component a flowable cement mortar or concrete mixture, respectively, characterized in that a multi-layer reinforcement mat (3) is attached to the building component and in that for establishing the formwork a knifing filler consisting of a hydraulically setting material is placed into the fabric layers of the reinforcement mat and in that the knifing filler is left to harden before the cement mortar or concrete mixture, respectively, is filled in.
  2. Method according to claim 1, characterized in that the reinforcement mat (3) is flatly fastened directly to the building component (4).
  3. Method according to claim 1, characterized in that the reinforcement mat (3) is fastened at a distance of the building component (4).
  4. Method according to one of the claims 1 to 3, characterized in that a reinforcement mat (3) is used consisting of at least three layers with wire sizes between 0,5 mm to 3,5 mm and mesh sizes between 2 mm to 60 mm, and in that the reinforcement mat (3) contains layers (3a or 3b, respectively) with different wire sizes and mesh sizes.
  5. Method according to one of the claims 1 to 4, characterized in that a knifing filler is used, containing fibers, preferably plastic fibers.
  6. Method according to one of the claims 1 to 5, characterized in that a knifing filler is used having a slump, which corresponds to 40 % to 60 %, preferably about 50 %, of the slump of the cement mortar or concrete mixture, respectively, filled into the space between the formwork and the building component.
EP09013653.2A 2008-10-30 2009-10-30 Method for attaching a reinforcement or cladding to an existing builing part and building part with attached reinforcement or cladding Active EP2182139B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09013653T PL2182139T3 (en) 2008-10-30 2009-10-30 Method for attaching a reinforcement or cladding to an existing builing part and building part with attached reinforcement or cladding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008053978A DE102008053978B4 (en) 2008-10-30 2008-10-30 A method of attaching a reinforcement or cladding to an existing component as well as a component with a reinforcement or cladding layer attached thereto

Publications (3)

Publication Number Publication Date
EP2182139A2 EP2182139A2 (en) 2010-05-05
EP2182139A3 EP2182139A3 (en) 2012-05-30
EP2182139B1 true EP2182139B1 (en) 2016-09-28

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EP09013653.2A Active EP2182139B1 (en) 2008-10-30 2009-10-30 Method for attaching a reinforcement or cladding to an existing builing part and building part with attached reinforcement or cladding

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US (1) US8397457B2 (en)
EP (1) EP2182139B1 (en)
DE (1) DE102008053978B4 (en)
ES (1) ES2608634T3 (en)
PL (1) PL2182139T3 (en)

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US20160222660A1 (en) * 2015-02-04 2016-08-04 Rodney I. Smith Prefabricated building panel
JP6478834B2 (en) * 2015-06-25 2019-03-06 有限会社マサクリーン How to prevent flaking of concrete pieces
JP2018003418A (en) * 2016-06-30 2018-01-11 リノ・ハピア株式会社 Outer wall reinforcement method
KR101994852B1 (en) * 2017-11-21 2019-07-01 한국건설기술연구원 Concrete structure using reinforcing member reinforced by embedded grid, and repairing and strengthening method for the same

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Also Published As

Publication number Publication date
EP2182139A2 (en) 2010-05-05
ES2608634T3 (en) 2017-04-12
US20100107537A1 (en) 2010-05-06
EP2182139A3 (en) 2012-05-30
DE102008053978B4 (en) 2012-01-05
PL2182139T3 (en) 2017-06-30
US8397457B2 (en) 2013-03-19
DE102008053978A1 (en) 2010-06-10

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