EP2113352B1 - Procédé de fabrication d'un élément de construction en béton poreux - Google Patents

Procédé de fabrication d'un élément de construction en béton poreux Download PDF

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Publication number
EP2113352B1
EP2113352B1 EP08155437A EP08155437A EP2113352B1 EP 2113352 B1 EP2113352 B1 EP 2113352B1 EP 08155437 A EP08155437 A EP 08155437A EP 08155437 A EP08155437 A EP 08155437A EP 2113352 B1 EP2113352 B1 EP 2113352B1
Authority
EP
European Patent Office
Prior art keywords
layer
layers
porous concrete
properties
raw material
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.)
Not-in-force
Application number
EP08155437A
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German (de)
English (en)
Other versions
EP2113352A1 (fr
Inventor
Oliver Michel
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.)
H+H International AS
Original Assignee
H+H International AS
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 H+H International AS filed Critical H+H International AS
Priority to EP08155437A priority Critical patent/EP2113352B1/fr
Priority to UAA201014069A priority patent/UA103322C2/ru
Priority to PCT/EP2009/054835 priority patent/WO2009133008A1/fr
Priority to EA201001718A priority patent/EA020394B1/ru
Publication of EP2113352A1 publication Critical patent/EP2113352A1/fr
Application granted granted Critical
Publication of EP2113352B1 publication Critical patent/EP2113352B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete

Definitions

  • the invention relates to a method for producing a component made of cellular concrete.
  • Autoclaved aerated concrete is a material that has been known for many decades and, because of its favorable properties in the construction industry, is highly valued not only for the construction of external walls, but also for interior work.
  • Made of aerated concrete components can be made by the specific choice of formulations with different properties, in particular, for example, the porosity and thus the bulk density or compressive strength can be variably adjusted.
  • a low bulk density and thus a high proportion of pores due to the high degree of air inclusions a particularly good thermal insulation or thermal insulation, a lower porosity and thus higher bulk density gives the component a higher pressure resistance and thus stability. It is therefore particularly better suited to take loads, and has moreover, for example also compared to aerated concrete lower density better soundproofing properties.
  • Aerated concrete is nowadays often produced in processes in which initially the raw material for the concrete is introduced into a mold, ferment the aerated concrete blank in the mold to form the pores, which are formed by a corresponding pore-forming agent in the starting formulation is left and sets to obtain the so-called green strength, the so-called green cake formed, then cut into the components and finally these precut components are cured in the presence of hot water vapor and pressure.
  • components of cellular concrete with a homogeneous property that is continuous throughout the component are produced. a predetermined and adjustable due to the recipe compressive strength. It is also known to add property-modifying additives to aerated concrete, such as e.g. encapsulated phase change materials to alter the heat storage properties of the cellular concrete. Again, a uniform casting is made to a coherent green cake, so that the properties set for the entire component of cellular concrete are homogeneous.
  • aerated concrete components have due to the customary desired and desired wall depths often larger dimensions than would be required to form the actual support function.
  • a narrower aerated concrete component of the same compressive strength class often suffices for the construction of an outer masonry work that is as stable as it is capable of bearing, as the component actually used.
  • the inventors have the task of providing an improved method for the production of such a component made of cellular concrete, which component such as from GB 2 068 289 is known flexible in use and combines in one element several of the intrinsically favorable properties of the material or with corresponding additives to be achieved favorable properties in itself, specify.
  • a flexible component made of aerated concrete is produced by integrally forming it with at least two layers, each layer of which contains aerated concrete which has properties differing from the aerated concrete of the respective other layer.
  • the layers of a cellular concrete element may be designed with different bulk densities, e.g. when installing in an outer wall or other load-bearing wall on the one hand to find the good static properties and compressive strength of aerated concrete of high density, on the other hand, but also the good heat insulating properties of aerated concrete with lower density.
  • the strength of the integral connection between the layers is inventively by a corrugated or Jagged boundary line between the layers or a correspondingly structured interface improved.
  • a corrugated or Jagged boundary line between the layers or a correspondingly structured interface improved.
  • Such a configuration of the boundary lines or the interface increases the contact area between the layers and thus improves the one-piece and intimate connection.
  • the boundary region is designed to be jagged or wavy.
  • the surface of a first layer are "roughened", in particular in two different directions, before the further layer is applied.
  • the one-piece design of the component ensures that this does not have a weak point at the boundary between the layers and threatens to break apart here.
  • the process according to the invention is one in which the layers of cellular concrete of different properties are brought together in total before a final curing step in an autoclave.
  • the energy-intensive curing only has to be performed once and the overall production can be made more rapidly compared to a process, for example, in which a second layer is then applied to a previously hardened first layer and cured again.
  • aerated concrete in the layers, as an alternative to the different bulk density, can be used with properties that are set differently due to specific additives; this can also be done in combination with aerated concrete of different bulk densities.
  • Such property-determining additives are, for example, those already described above, encapsulated phase transition materials, but there are also other additives into consideration, which develop property-modifying effect.
  • the aerated concrete in at least one layer, a dye, e.g. in the form of color pigments or other distinguishing features.
  • a dye e.g. in the form of color pigments or other distinguishing features.
  • the aerated concrete for differentiation in different layers of different dyes or the like can be added.
  • an upper layer to be applied to an existing base layer can take place only after a first hardening of the lower layer, in particular only after reaching the green rigidity, on the other hand, the layer structure can be created by a "wet-on-wet" method, in which the further Layer is applied to a still liquid or viscous and not yet solidified to a green rigidity lower layer.
  • the second-mentioned method can contribute to a reduction of production times, since the waiting time to reach the green stiffness of a first layer before pouring a further layer is eliminated ,
  • the green-rigid porous concrete cake which contains at least two differently formed aerated concrete layers by the process according to the invention, is usually cut before autoclaving or another final curing process, care must be taken in this cutting that the boundary line between the layers in the finished component be in the desired direction runs. This will often be a transverse direction of the component, so its width, since the length is usually installed in the wall escape and different properties in a substantially vertical direction lying to the wall plane most likely to be required.
  • FIG. 1 an exemplary embodiment of a component 1 made of cellular concrete produced by the method according to the invention is shown in a highly simplified and schematic representation, each in a plan view.
  • both layers are made of cellular concrete, but with different properties.
  • the cellular concrete in the layer 2 is provided with different properties than the cellular concrete in the layer 3.
  • a high density concrete e.g. an aerated concrete material of the classification P6
  • the cellular concrete in the layer 3 is one of a lower density, e.g. one of the classification P2.
  • the layers may differ by addition of property-modifying additives in only one of the layers or in both layers, but in different concentrations, it can also in both layers additives, however, they may be different for different property changes.
  • Such aggregates may e.g. encapsulated chamfering materials for improving the heat storage properties or the like.
  • both in the layers 2, 3 both different densities of the respective aerated concrete material can be realized and also also, if necessary, different additives may be included. Also, one of the layers 2 and 3 may be colored, or it may be added to both layers different colors.
  • the layer 2 could serve as an outer layer of the stone and have a high bulk density and thus good static properties and structural strength.
  • the layer 3, which then lies on the inside of the wall, may be made of a porous concrete with a low bulk density in order to improve the thermal insulation properties of the stone as a whole.
  • the layer boundary 4 is structured, in particular corrugated. This formation of the layer boundary 4 brings an enlarged contact surface between the two layers 2, 3 and can thus contribute to an improved connection and adhesion or expression of the one-piece connection between the layers 2 and 3.
  • the component made of cellular concrete shown in the figure is produced by a manufacturing method according to the invention.
  • the layer 3 is applied to the layer 2 before curing, either in the process "wet-on-wet", ie on a still liquid or viscous layer 2, be it in a green stage of the layer 2.
  • the latter Variant offers a sharper interface and in particular allows a very good training of a selected layer boundary structure, but it lasts longer in the process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Laminated Bodies (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Claims (7)

  1. Procédé de fabrication d'un élément de construction d'un seul tentant en béton poreux comprenant au moins deux couches présentant du béton poreux aux différentes propriétés, où l'on verse d'abord dans un moule une couche d'un premier mélange de matières premières, selon une première recette constituant du béton poreux avec des premières propriétés, ou l'on applique, avant un passage dans l'autoclave, au moins une seconde couche d'un second mélange de matières premières sur la première couche selon une seconde recette constituant du béton poreux aux secondes propriétés s'écartant des premières propriétés, et l'on soumet la masse de départ complètement revêtue à une réduction de durcissement pour atteindre la solidité finale dans un autoclave, caractérisé en ce qu'avant l'application de la deuxième couche ou d'une couche supplémentaire, la surface de la couche injectée au préalable dans le moule est pourvue de structures en forme de vagues ou de dents.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on applique la seconde couche sur la première couche, une fois que cette dernière a atteint une certaine solidité de base, en particulier une résistance en vert grâce à un premier procédé de solidification.
  3. Procédé selon la revendication 1, caractérisé en ce que l'on applique la seconde couche sur la première couche, tandis que ladite seconde couche est encore liquide ou visqueuse.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on laisse fermenter ou maturer la masse crue revêtue pour obtenir une résistance en vert dans toutes les couches, que l'on retire la masse crue du moule puis que l'on coupe cette masse, avant de la faire durcir en particulier dans un autoclave, tandis que l'on découpe la masse crue de telle sorte que les éléments de construction résultants contiennent respectivement les diverses couches dans une extension transversale.
  5. Procédé selon l'une quiconque des revendications précédentes, caractérisé en ce que l'on choisit la recette du premier et du second mélanges de matières premières de telle sorte que l'on obtient respectivement du béton poreux aux densités brutes diverses.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on ajoute au premier mélange de matières premières des additifs déterminant ou modifiant la propriété du béton poreux ainsi obtenu, additifs que l'on n'ajoute pas ou bien dans une autre concentration au second mélange de matières premières.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on ajoute des pigments de couleur ou des caractéristiques de différenciation comparables au moins à l'un des premier et second mélanges de matières premières pour distinguer les couches de l'élément de construction terminé.
EP08155437A 2008-04-30 2008-04-30 Procédé de fabrication d'un élément de construction en béton poreux Not-in-force EP2113352B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08155437A EP2113352B1 (fr) 2008-04-30 2008-04-30 Procédé de fabrication d'un élément de construction en béton poreux
UAA201014069A UA103322C2 (ru) 2008-04-30 2009-04-22 Способ изготовления монолитного строительного элемента из пористого бетона
PCT/EP2009/054835 WO2009133008A1 (fr) 2008-04-30 2009-04-22 Élément de construction en béton poreux et son procédé de fabrication
EA201001718A EA020394B1 (ru) 2008-04-30 2009-04-22 Способ изготовления строительного элемента из пористого бетона

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08155437A EP2113352B1 (fr) 2008-04-30 2008-04-30 Procédé de fabrication d'un élément de construction en béton poreux

Publications (2)

Publication Number Publication Date
EP2113352A1 EP2113352A1 (fr) 2009-11-04
EP2113352B1 true EP2113352B1 (fr) 2013-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08155437A Not-in-force EP2113352B1 (fr) 2008-04-30 2008-04-30 Procédé de fabrication d'un élément de construction en béton poreux

Country Status (4)

Country Link
EP (1) EP2113352B1 (fr)
EA (1) EA020394B1 (fr)
UA (1) UA103322C2 (fr)
WO (1) WO2009133008A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3663270B1 (fr) * 2018-12-03 2021-06-16 Horst Puckelwaldt Plaque stratifiée pourvue d'isolation thermique, son utilisation et procédé de manufacture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068289A (en) * 1980-01-31 1981-08-12 Ytong International Ab Method for the production of building elements of the lightweight concrete type
JPH08208345A (ja) * 1995-02-06 1996-08-13 Asahi Chem Ind Co Ltd 軽量気泡コンクリート板とその製造方法
AT509244A1 (de) * 2010-01-13 2011-07-15 Geolyth Mineral Technologie Gmbh Mineralische mehrschichtplatte und verfahren zur herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR928378A (fr) * 1946-05-22 1947-11-26 Perfectionnement dans la fabrication des matériaux cellulaires d'isolation thermique et phonique à base de ciment, chaux, plâtre, etc.
SE513581C2 (sv) * 1997-11-24 2000-10-02 Goeran Mellstroem Förfarande för att framställa en formsatt färgad betongkonstruktion samt betongkonstruktion framställd enligt sagda förfarande
DE102006034969A1 (de) * 2006-07-28 2008-02-21 Heide, Michael, Dipl.-Ing. (FH) Verfahren zur Herstellung von mehrfarbigen, hochfesten Betonprodukten mit konturenscharfen Farbübergängen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068289A (en) * 1980-01-31 1981-08-12 Ytong International Ab Method for the production of building elements of the lightweight concrete type
JPH08208345A (ja) * 1995-02-06 1996-08-13 Asahi Chem Ind Co Ltd 軽量気泡コンクリート板とその製造方法
AT509244A1 (de) * 2010-01-13 2011-07-15 Geolyth Mineral Technologie Gmbh Mineralische mehrschichtplatte und verfahren zur herstellung

Also Published As

Publication number Publication date
EP2113352A1 (fr) 2009-11-04
EA020394B1 (ru) 2014-10-30
WO2009133008A1 (fr) 2009-11-05
UA103322C2 (ru) 2013-10-10
EA201001718A1 (ru) 2011-06-30

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