EP0288459B1 - Procede pour la fabrication d'un panneau prefabrique, et panneau prefabrique etanche a la pluie - Google Patents

Procede pour la fabrication d'un panneau prefabrique, et panneau prefabrique etanche a la pluie Download PDF

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Publication number
EP0288459B1
EP0288459B1 EP86905735A EP86905735A EP0288459B1 EP 0288459 B1 EP0288459 B1 EP 0288459B1 EP 86905735 A EP86905735 A EP 86905735A EP 86905735 A EP86905735 A EP 86905735A EP 0288459 B1 EP0288459 B1 EP 0288459B1
Authority
EP
European Patent Office
Prior art keywords
concrete
layer
gas
front layer
barrier
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.)
Expired - Lifetime
Application number
EP86905735A
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German (de)
English (en)
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EP0288459A1 (fr
Inventor
Klaus Bartram
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.)
Fr Bartram & Co Kg GmbH
Original Assignee
Fr Bartram & Co Kg GmbH
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Filing date
Publication date
Application filed by Fr Bartram & Co Kg GmbH filed Critical Fr Bartram & Co Kg GmbH
Publication of EP0288459A1 publication Critical patent/EP0288459A1/fr
Application granted granted Critical
Publication of EP0288459B1 publication Critical patent/EP0288459B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/049—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating

Definitions

  • the invention relates to a method for producing a rainproof wall element according to the preamble of claim 1 as well as a rainproof wall element according to the preamble of claim 4.
  • the US 2 038 967 shows a wall structure with two prefabricated elements, namely a receiving shell made of lightweight concrete and a concrete element inserted into a recess of this lightweight concrete element, which are connected to one another by an adhesive connection.
  • This type of connection requires a precise adjustment of the parts to be placed one inside the other as well as a full-surface filling of the space between the two parts by the adhesive, since otherwise a firm connection between the parts is not guaranteed and there is no absolute tightness against weather conditions. It is also not possible to use prefabricated universal gas concrete elements.
  • the coating known from US 38 70 553 consists of a mixture of concrete and a binder, the grain sizes of the concrete used being less than 30 mesh (about 4 mm).
  • the limit values given in this document for the grain sizes of the sand used are specified as critical (column 3, lines 13-18), otherwise the desired result should not be achievable.
  • the mixture to be applied is applied to the gas concrete elements, for example by spraying or trowel plastering.
  • the thickness is 1/16 to 1/4 inch (1.5 to 6 mm).
  • Such thin coatings tend to crack and can therefore only be used to a limited extent in areas with strong temperature changes.
  • the component known from DE-OS 2 337 728 is produced by first forming a concrete mixture with a synthetic resin admixture and in that an air-entrained concrete is poured over this layer in layers before the first concrete layer has set. Conversely, air-entrained concrete can first be poured and the facing layer applied to it, e.g. in road construction. The application of this process requires the joint production of both layers. Since it is a fresh-in-fresh process, it is not possible to transport partially manufactured elements. This method can therefore not be used for prefabricated elements.
  • DE-OS 2 334 489 discloses a composite construction element for walls or roofs, in which a base body consisting of gas concrete is provided with a cover body.
  • the cover body consists of a mixture of 85 to 92% mineral aggregate or fillers and 8 to 15% plastic binders.
  • the grain size distribution of the filler should be selected such that the aggregates or fillers of larger grain are arranged substantially in the vicinity of the boundary layer to the base body and the plastic is preferably in the vicinity of the outside facing away from the base body, so that the cover body is built unevenly.
  • Anchoring bars are also available. Due to the complicated structure of the cover body and the reinforcing bars used, such a wall element can in no way be produced inexpensively.
  • DE-OS 1 959 038 shows a surface treatment of gas concrete elements in which the surface of the gas concrete elements is profiled and this is covered with a liquid to paste-like protective layer 0.1 to 10 mm thick while filling the depressions . Reinforcement steel wires are inserted into the profiles to increase strength.
  • the invention has for its object to provide a method for sheet or pallet-wise manufacture of a rainproof wall element with which a concrete facing layer can be applied to a prefabricated gas concrete element, and which is easy and inexpensive to carry out in particular in series production.
  • the invention is further based on the object of specifying a rainproof wall element which is formed from a prefabricated gas concrete element with a concrete facing layer applied thereon, which is inexpensive, conveys an optically appealing appearance and is completely weatherproof.
  • the invention enables the construction of a wall element, the main component of which consists of gas concrete, which, however, imparts rainproofness and an attractive appearance due to the layer of concrete in front, in particular washed concrete.
  • the non-reinforced facing layer is applied by means of an adhesive and barrier layer which prevents water from penetrating and which provides good adhesion between the facing layer and the gas concrete element.
  • a gas concrete element 1 is provided with a facing concrete layer by connecting the facing layer to the gas concrete element by means of an adhesive and barrier layer, preferably an adhesive emulsion based on polyvinyl acetate.
  • a polycondensed heterocycle-modified cement-bound adhesive bridge is preferably used, which, for. B. available under the name "Addiment Haftmaschine 1" from Addiment is.
  • This barrier layer can first be applied in viscous form directly to the gas concrete layer in such a way that the pores of the gas concrete are sealed. Then the concrete facing layer is applied or placed on, the pores of the gas concrete are further sealed and an intimate bond between the gas concrete and the facing layer results.
  • the barrier layer can also first be applied to the concrete facing layer, to which the gas concrete layer is then applied.
  • Fig. 1 shows a cross section through a wall element according to the invention. Only a thin barrier layer 3 with a thickness of 5-20 mm is applied to the gas concrete element 1, to which the facing element 2 is applied. A wash concrete layer is primarily used as the facing concrete layer. This layer is neither reinforced nor provided with composite anchors. Because reinforcement does not prevent hairline cracks caused by shrinkage or temperature fluctuations.
  • Gas concrete has a compressive strength of less than 15 N / mm2 and a bending tensile strength of approximately 1 N / mm2. In contrast, the compressive strength of the concrete used is more than 35 N / mm2 and the bending tensile strength is more than 5 N / mm2. This leads to a substantial increase in the resilience and resistance of the outward-facing layer than is possible with plasters whose compressive strength is below 2.5 N / mm2.
  • the concrete layer is preferably reinforced, so that the gas concrete is encircled by the concrete layer. 1 shows, with the numbers 4 and 5, the engagement behind a shoulder of the gas concrete layer 1.
  • FIG. 2 shows two adjoining gas concrete layers, each of which is provided with a wash concrete facing layer.
  • the two washed concrete layers each engage behind the gas concrete layer with the projections 6 and 7.
  • a seal 8 is inserted between two wall elements, which is preferably inserted between the opposite edges of the two facing layers of the gas concrete elements 9 and 10. This means that rainwater cannot reach the gas concrete layer at any point.
  • the individual wall elements are preferably connected to one another with the aid of an adhesive mortar 11.
  • Wall elements according to the invention are preferably produced on a web paver or in a pallet production facility. It is possible that the washed concrete is applied to an underlying gas concrete layer (positive process), and that the washed concrete is located below (negative process). In the case of web production using a rail-based paver, the application of the barrier layer, if this is applied separately, the feeding, wiping and shaking of the concrete, as well as the shaping by means of sliding formwork, can be carried out immediately by the paver after the gas concrete wall elements were inserted below. The elements can also be washed out with a rail-mounted, mobile washing system.
  • the web production process is particularly suitable for economical production
  • a pallet production is also conceivable, in which the gas concrete elements are placed in a formwork, for which purpose two side formworks are removed in each case.
  • the barrier layer is then introduced in a further station, if this is applied separately, and the application of the concrete is then expediently carried out in a further station, which is followed by the vibrating station.
  • test wall was alternately subjected to such a frost / thaw change fifty times by blowing cold air at -20 ° C and sprinkling with water at + 20 ° C. Before the start of the test, the test specimen was sprinkled with water for about 8 hours. After the test wall had been divided, no change could be found on the visible side or at the joint between the facing concrete and gas concrete.
  • the method can also be carried out by mixing the concrete layer with a water-impermeable substance, preferably a polymer agent, and then applying it to the gas concrete element in one operation without reinforcement.
  • a water-impermeable substance preferably a polymer agent
  • a suitable agent is e.g. B. Addiment BV 3 from Addiment.
  • a correspondingly created wall element is characterized in particular by the simplicity of manufacture and good rain-repellent properties.
  • Another way to achieve rainproofness is to apply a concrete layer of a certain thickness, e.g. 5 cm, with an adhesive tensile and compressive strength to the gas concrete element that is at least twice as high, preferably more than three times as high as the corresponding values of the Gas concrete element, with no addition required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Finishing Walls (AREA)

Abstract

Le panneau préfabriqué décrit permet la liaison, par l'intermédiaire d'une couche isolante étanche à la pluie, d'un panneau en béton cellulaire et d'une couche de garde en béton, notamment en béton lavé. Est également décrit un panneau préfabriqué réalisé de cette manière.

Claims (8)

  1. Procédé de fabrication sur voie ou en palette d'un élément de paroi étanche à la pluie comportant un élément en béton-gaz préfabriqué qui est pourvu d'une couche de parement en béton, caractérisé en ce qu'une couche isolante et adhérente (3) étanche à la pluie est appliquée sur l'élément en béton-gaz et sur la couche isolante et adhérente est appliquée une couche de parement en béton non armée, formée essentiellement de béton lavé, ou une couche isolante et adhérente (3) étanche à la pluie est appliquée sur une couche de parement en béton non armée formée essentiellement de béton lavé et l'élément en béton-gaz est appliqué sur la couche de parement en béton comportant la couche isolante et adhérente.
  2. Procédé selon la revendication 1, caractérisé en ce que l'application de la couche de parement en béton, respectivement de l'élément en béton-gaz se fait immédiatement après celle de la couche isolante et adhérente sur l'élément en béton-gaz, respectivement sur la couche de parement en béton.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche isolante et adhérente est constituée à partir d'une base de polyvinylacétate.
  4. Elément de paroi étanche à la pluie, composé d'un élément en béton-gaz pourvu d'une couche de parement en béton, caractérisé en ce que la couche de parement en béton est formée essentiellement de béton lavé, en ce qu'il est prévu, entre l'élément en béton-gaz (1) et la couche de parement en béton (2), une couche isolante et adhérente étanche à la pluie, et en ce que la couche de parement est réalisée non armée.
  5. Elément de paroi étanche à la pluie selon la revendication 4, caractérisé en ce que la couche isolante et adhérente est une émulsion à base de polyvinylacétate.
  6. Elément de paroi étanche à la pluie selon les revendications 5 ou 6, caractérisé en ce que la couche de parement en béton (2) recouvre au moins en partie les bords de l'élément en bétongaz.
  7. Elément de paroi étanche à la pluie selon l'une des revendications 4 ou 4, caractérisé en ce que la couche de parement en béton (2) est en prise par derrière avec des parties de l'élément en béton-gaz (1) faisant saillie latéralement.
  8. Elément de paroi étanche à la pluie selon l'une au moins des revendications 4 à 7, caractérisé en ce qu'il est prévu, entre des éléments de paroi voisins, un joint (8) étanche à l'eau qui se trouve entre les bords latéraux dirigés l'un vers l'autre de la couche de parement en béton (6, 7).
EP86905735A 1985-04-12 1986-10-06 Procede pour la fabrication d'un panneau prefabrique, et panneau prefabrique etanche a la pluie Expired - Lifetime EP0288459B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3513711 1985-04-12
PCT/DE1986/000404 WO1988002303A1 (fr) 1985-04-12 1986-10-06 Procede pour la fabrication d'un panneau prefabrique, et panneau prefabrique etanche a la pluie

Publications (2)

Publication Number Publication Date
EP0288459A1 EP0288459A1 (fr) 1988-11-02
EP0288459B1 true EP0288459B1 (fr) 1992-04-15

Family

ID=43431800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86905735A Expired - Lifetime EP0288459B1 (fr) 1985-04-12 1986-10-06 Procede pour la fabrication d'un panneau prefabrique, et panneau prefabrique etanche a la pluie

Country Status (4)

Country Link
EP (1) EP0288459B1 (fr)
DE (2) DE3611835A1 (fr)
DK (1) DK305988D0 (fr)
WO (1) WO1988002303A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611835A1 (de) * 1985-04-12 1986-10-30 Dipl.-Ing. Fr. Bartram GmbH & Co KG, 2354 Hohenwestedt Verfahren zur herstellung eines wandelementes sowie regendichtes wandelement
NO890861D0 (no) * 1989-03-01 1989-03-01 Mindor Sunde Grunnmurselement.
DE4415316C2 (de) * 1994-05-02 1998-03-12 Kleinewefers Gmbh Rollenwickelmaschine
DE19860993C2 (de) * 1998-02-17 2002-01-17 Rockwool Mineralwolle Dämmstoffelement
BE1012028A3 (nl) * 1998-06-09 2000-04-04 Swenters Ivo Theodoor Prefab-wandelement en werkwijze voor het vervaardigen van zulk prefab-wandelelement.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038967A (en) * 1934-05-25 1936-04-28 Pierce John B Foundation Composite building unit
DE1175855B (de) * 1961-12-06 1964-08-13 Dyckerhoff & Widmann Ag Grossformatige Verbundbautafel
DE1609635A1 (de) * 1966-01-07 1970-12-23 Fliszar Bela I Bauplatte aus Gasbeton
DE1684030A1 (de) * 1967-06-30 1971-03-04 Wiemers Hans Juergen Verfahren zur Herstellung von Verkleidungsplatten
FI48005C (fi) * 1968-01-11 1974-05-10 Innovationsteknik Inst Ab Menetelmä levymäisen tai laattamaisen rakennuselementin valmistamiseks i
DE1959038A1 (de) * 1969-11-25 1971-05-27 Lechler Bautenschutzchemie Kg Verfahren und Masse zur Oberflaechenverguetung von poroesen Leichtbaustoffen
DE2023609A1 (de) * 1970-05-14 1971-12-02 Robert Bosch Gmbh, 7000 Stuttgart Vorgefertigte mehrschichtige Bauplatte, insbesondere Fassadenplatte und Verfahren zu ihrer Herstellung
US3870553A (en) * 1970-07-08 1975-03-11 Domtar Ltd Cellular concrete unit coated with air permeable, water repellent concrete coating
DE2224874A1 (de) * 1972-05-20 1973-12-13 Bosch & Wuestenrot Strukturbau Vorfabriziertes mehrschichtiges bauelement und verfahren zu seiner herstellung
DE2241886A1 (de) * 1972-08-25 1974-03-07 Hebel Gasbetonwerk Gmbh Grossformatige verbundwandplatte
DE2334489C3 (de) * 1973-07-06 1979-01-11 Kleinsteuber & Co Fabrikation Synthetischer Drahtseile, 8433 Parsberg Verbundbauelement für Wände, Dächer etc. und Verfahren zu dessen Herstellung
DE2337728A1 (de) * 1973-07-25 1975-02-06 Kurt Glass Chem Fabrik Bauelement aus beton od. dgl
DE2854228C2 (de) * 1978-12-15 1983-11-24 Ytong AG, 8000 München Mehrschichtenplatte aus Gasbeton sowie Verfahren zu ihrer Herstellung
DE3611835A1 (de) * 1985-04-12 1986-10-30 Dipl.-Ing. Fr. Bartram GmbH & Co KG, 2354 Hohenwestedt Verfahren zur herstellung eines wandelementes sowie regendichtes wandelement

Also Published As

Publication number Publication date
EP0288459A1 (fr) 1988-11-02
DK305988A (da) 1988-06-06
DK305988D0 (da) 1988-06-06
WO1988002303A1 (fr) 1988-04-07
DE3611835A1 (de) 1986-10-30
DE3684928D1 (de) 1992-05-21

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