EP1584767A1 - Elément de construction formé en plaque et méthode de fabrication - Google Patents

Elément de construction formé en plaque et méthode de fabrication Download PDF

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Publication number
EP1584767A1
EP1584767A1 EP05007510A EP05007510A EP1584767A1 EP 1584767 A1 EP1584767 A1 EP 1584767A1 EP 05007510 A EP05007510 A EP 05007510A EP 05007510 A EP05007510 A EP 05007510A EP 1584767 A1 EP1584767 A1 EP 1584767A1
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EP
European Patent Office
Prior art keywords
layer
component
elements
cellulosic
component according
Prior art date
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Granted
Application number
EP05007510A
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German (de)
English (en)
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EP1584767B1 (fr
Inventor
Wolfgang Dipl.-Ing. Fennen
Manfred Dr.-Ing. Mahler
Helmut Prof. Dr. Pasch
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Individual
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Individual
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Priority to PL05007510T priority Critical patent/PL1584767T3/pl
Publication of EP1584767A1 publication Critical patent/EP1584767A1/fr
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Publication of EP1584767B1 publication Critical patent/EP1584767B1/fr
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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
    • E04C2/10—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 wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—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 wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like

Definitions

  • the invention first relates to a component according to the preamble of claim 1 Such a device is described in DE 25 48 210 B2 described.
  • Fiber or chip mixture For the preparation of the known device one uses one Fiber or chip mixture. This will after cutting in at least two fractions, namely in fine material with a chip size of 2-8 mm and normal with a chip size of 8-20 mm - of which at least 80% larger than 12 mm - split and each of the fractions by itself with binder cement mixed.
  • the fines fraction is added much more cement than the normal fraction.
  • the two fractions mixed with the binder cement are sprinkled by air classification on a base, with the Sprinkle at least three gradually merging, in relation to Fiber or chips to cement ratio different layers are generated.
  • the main fraction (64%) consists mainly of one Spangemisch of 5-12 mm in length, which is a reinforcement of the plate-like component and, associated with it, also the corresponding strengths should ensure.
  • the structure made the known plate-like component so that a gradual Transition from the outer uniform fine layers to the inner ones Coarse layer occurs.
  • From DE 34 06 895 A1 discloses a method for producing cement-bound Wood fiber molded body known in which to mix with a content of Portland cement, water and wood shavings or wood wool, and optionally with customary additives deformed and under pressure and optionally cured with heating to dimensional stability.
  • amorphous silica for mineralization the wood components (beech chips) to use is also known.
  • a composite plate which consists of at least two layers, with a layer of concrete and a further consists of an insulating material, which consists of a mixture of Water mixed pulp and cement is formed.
  • the known composite panel on an entirely made of concrete outer wall, which is a supporting element. Inside is the plate with the pulp and cement prepared insulation board provided.
  • the composite plate according to DE 198 26 190 C1 is considered disadvantageous because of the supporting function the composite panel securing concrete area virtually no contribution to thermal insulation the composite plate makes.
  • plate-like components are made of monostructured Aerated concrete known.
  • Such an aerated concrete plate meets both a thermal insulation function as well as a support function.
  • thermal insulation function as well as a support function.
  • support function on the other each not perceived as optimal.
  • the invention is based on the object, a universal To provide applicable device, which is relatively easy to manufacture and which as integrated component different functions, in particular the support function on the one hand and the thermal insulation function on the other hand, optimally fulfilled.
  • each layer substantially over the entire layer thickness of a mixture of cellulose elements or cellulosic elements of all fractions of the same sieve line is that the cement is evenly distributed over the layer thickness that is the other facing adjacent layers with their interfaces firmly together are connected and that adjacent layers depending on Cement content and / or different depending on the degree of compaction Have crude densities.
  • an essential advantage of the device according to the invention that the particle size distribution of the cellulose elements or the cellulosic Elements beyond the thickness of a layer are not complicated Way individually along a gradient, but that each layer essentially over the entire layer thickness away from cellulosic elements or cellulosic elements of all fractions of the same grading curve.
  • This feature of the invention is essential for easy manufacturing handling and for the highest level of manufacturing identity as a prerequisite for consistent Material properties.
  • Another feature of the invention is that the facing each other adjacent layers with their interfaces firmly connected are.
  • a gap-free homogeneous compound is preferred, which For example, by bonding the facing surfaces adjacent layers can take place.
  • each other facing adjacent layers by means of their interfaces arises integrated component.
  • Such a composite component has, on the one hand due to the Layer with the relatively low cement content, accompanied by a lower Density, a very good thermal insulation value and on the other hand because of the layer with the relatively large proportion of cement, accompanying with a greater bulk density, over a very good support function.
  • both adjacent layers of the invention Component with their interfaces firmly connected be.
  • an essential feature of the invention is that the layer with the respective lower bulk density, the thermal insulation function and the layer with the respective greater bulk density, the supporting function of the device Fulfills.
  • the bulk density is due to variation of cellulosic elements or the cellulosic elements in addition to determine or vary. This is done according to the invention in that the bulk density additionally by the density of the cellulosic elements or the cellulosic elements determinable is.
  • hardwoods, especially hard tropical woods have a larger one Density on as softwoods.
  • the bulk density for the modification of particular building physics Properties e.g. for changing sound transmission properties, additionally be varied by making the mixture independent from the cement portion, mineral admixtures, e.g. a specific one particularly heavy admixture in the form of barium sulfate, admits.
  • mineral admixtures e.g. a specific one particularly heavy admixture in the form of barium sulfate
  • the invention provides the bulk density of a layer to vary depending on the degree of compaction. This can be done accordingly Further features of the invention happen that the degree of compaction can be determined by mechanical action, in particular by vibration.
  • Pore formers can be made from a reaction mixture made of lime, water and metal powder.
  • metal powder For example, aluminum powder or zinc powder is preferred.
  • Pore forming agent produces hydrogen, with the effect that the layer is in front of it Solidification similar to a batter, forming pores, "rises".
  • the invention provides that the cellulosic elements or cellulosic elements are mineralized Have surface.
  • such mineralization can be done by that the surface of the cellulosic elements or the cellulosic elements is mineralized by means of water glass.
  • Another variant of the invention exists in that the surface of the cellulosic elements or the cellulosic Elements is mineralized by means of amorphous silicon dioxide.
  • the invention provides in this context that the surface the cellulose elements or the cellulosic elements by means of lime milk or cemented milk is mineralized.
  • a thin cement coating provided with shavings according to the DE 195 31 481 C1 as mineralized cellulose elements for the production according to the invention Components are used advantageously.
  • the invention provides that at least one layer, in particular the supporting function of the component compliant layer, with reinforcing elements, e.g. with elongated and / or grid-like reinforcing elements made of metal, plastic, Fiberglass or carbon is provided.
  • the invention provides that as part of a broadest possible Prefabrication of components at least one layer of line elements for Containment of fluids and / or electricity.
  • External electrical influences can be correspondingly shield the invention in that at least one layer of graphite elements, especially graphite powder.
  • the invention provides at least one layer of heat balance elements to add, which are able due to the Phase change, e.g. during sun exposure to absorb heat and give off heat when the sun's radiation ceases.
  • Such elements which consist mainly of paraffin, are under the name "PCM” (Phase Change Material) have become known and become, for example from RUBITHERM GmbH, Worthdamm 13-27, 20457 Hamburg.
  • an inventive Component contain more than two layers, of which, however always two adjacent to each other.
  • the invention further relates to a method as according to the Features of the preamble of claim 18 by DE 25 48 210 B2 has become known.
  • this method of manufacture becomes significant simplifies that for producing a first layer the cellulosic elements and / or the cellulosic elements with all fractions of a particular one first grading that the cellulosic elements or the cellulosic Elements mixed with cement and water to a mixture be poured into the mold so that the mixture to the Increase in the degree of compaction shaken or subjected to vibration whereupon the second layer is made as a mixture, which is the grading curve cellulose elements corresponding to the first layer or another grading curve or contains cellulosic elements, as well as cement and water, and that the second layer is applied to the first layer.
  • a molding box 11 On a vibrating table 10, a molding box 11 is placed, which form side walls 12 and a mold bottom 13 has.
  • the vibrating table 10 is in a conventional manner with a vibrator or connected to another unbalance exciter, which in Fig. 1 by the with R designated two arrows symbolized.
  • both Layers A and B each one a layer of lightweight wood concrete, below "HLB", each have a mixture in the present case with the same recipe.
  • the mixture consists of about 12 percent by weight Wood shavings consisting of approx. 45% cement by weight and approx. 43 Weight percent water.
  • the molding box 11 is first a first mixture for the production filled a first layer A and pulled smooth. Then the vibrating table 10 is activated, so that the layer A is compressed. After a detail determining setting time, by prior addition of a setting accelerator, e.g. Water glass, the mixture can be shortened, the second layer B after an initial solidification of the layer A to the latter refilled.
  • the layer B is no or only a short-term shaking movement subjected, so not compacted, so that after curing both Layers A and B, the layer A has a greater bulk density than the Layer B.
  • the layer B facing the surface of the layer A is denoted by FA and the layer A facing interface of the layer B is denoted by FB. Meanwhile, after pouring the flowable mixture, the layer B has become in the area of the interfaces FA and FAB one with a dashed wavy line indicated mixing zone M formed, which the two layers A and B positively and materially interconnects.
  • the cellulose elements in the present case wood shavings, ensure a positive fit Composite within the mixing zone M.
  • the different densities of the layers A and B come in the present case not by a different recipe, but only due to the fact that the layer A by shaking or by vibration was mechanically compressed, while the layer B no mechanical or only a short-term compression subject.
  • the Bulk density e.g. the layer A by adding a larger proportion of cement increase.
  • both layers contain cellulose elements (in the present case wood shavings) corresponding to the same grading curve with all fractions of this grading curve.
  • a grading curve (sieve residue curve) was determined as follows: I II III lV V > 0 mm 0.46 g 0.46 g 1.44% 1.44% > 1 mm 1.14 g 1.60 g 3.56% 5.00% > 2 mm 9.39 g 10.99 g 29.36% 34.37% > 4 mm 19.74 g 30.73 g 61.73% 96.09% > 8 mm 1.25 g 31.98 g 3.91% 100.00%
  • the finished composite panel component P are removed from the mold box 11 and removed. It can Such a molding box in a conventional manner with of the mold bottom 13th removable mold walls 12 may be provided.
  • a vibrating table 10 is for the application of the invention Mixture not mandatory.
  • Mixture e.g.
  • Floor slabs in situ Layer by layer potted and the individual layers with mobile vibrators are compacted.
  • a weatherproof layer 14 on the outside, e.g. a plaster layer on which inside a layer B (thermal barrier coating) and in more follow a layer A (base layer) and connect a layer C.
  • this outer wall component E can, as in the embodiment according to Fig. 1, the same recipe for the layers A, B and C. be presupposed. Also, the production of the outer wall component E basically done in accordance with the type shown in Fig. 1. expedient Meanwhile, first, the layer C was poured, which is a radiation heating layer forms and flows through a heat exchange medium Embeds tubes 15.
  • the bulk density of the layer C of the bulk density of the following poured-on support layer A correspond. Both layers C and A are obtained Accordingly, the same degree of compaction, while the thermal barrier coating B no or only a slight compression is subjected and therefore compared to the layers C and A on the lower bulk density and therefore has the greater thermal insulation capacity.
  • Analogous to the composite panel component of FIG. 1 is also at the outer wall component E between the interfaces FA and FB and between the interfaces FA and FC one each with a dashed one Wavy line indicated mixing zone M present, in each of which between the individual layers B, A and C, a particularly intimate form and fabric bond consists.
  • Fig. 3 is a partial longitudinal section through a bottom plate component G shown.
  • the bottom plate component G has three layers A, B and C, wherein the bulk density of the layer A to the layer C of Layer by layer gradually decreases.
  • the points marked 16 within the layer A are to symbolize a reinforcement, which as Metal, pulp or Faserarmtechnik can be formed. While accordingly the layer A with the largest density and with the reinforcement 16 for the Strength of the bottom plate component G provides the layers B and C with the gradually lower density a good thermal insulation.
  • Also in the bottom plate component G according to FIG. 4 are in the area of the boundary surfaces FA and FB as well as FB and FC form and material connection effecting Mixing zones M available.
  • the ceiling component D shown in FIG. 4 and the according to FIG. 5 illustrated Dachplattenbauelement DP differ from the bottom plate component G according to FIG. 4 in principle not.
  • the density is the reinforcement 16 according to the individual static conditions designed differently than the corresponding reinforcement 16 of the structural panel component G ( Figure 4) and ceiling tile component DP ( Figure 5). Because the components D and DP otherwise the Bodenplattenbauelement G as far as possible further explanations can be dispensed with.
  • Figs. 6 and 7 are physical properties of the invention Material HLB (wood lightweight concrete) compared to other materials shown.
  • FIG. 6 shows the thermal conductivity of various materials as the ordinate lambda [W / mK] over the abscissa gross density [kg / m 3 ].
  • HLB are compared to Material lightweight concrete LB (concrete with air-enclosing elements, like styrofoam and expanded clay), light hollow bricks LHZ (lattice clay bricks), aerated concrete PB (concrete with pore-forming agents in the form of aluminum and / or zinc powder) and Poroton PT (hollow expanded clay roof tile).
  • Fig. 6 shows that it is possible with the material HLB according to the invention to achieve a very low thermal conductivity of about 0.05 W / mK.
  • the material according to the invention HLB still has a relatively low thermal conductivity of 0.38 W / mK.
  • the material according to the invention has a very high compressive strength of about 10.5 N at the mentioned bulk density of 1000 kg / m 3 , which is associated with a relatively low thermal conductivity of 0.38 W / mk. mm 2 features.
  • the material according to the invention HLB is characterized a significantly larger compared to the other aforementioned materials Bending and tensile strength.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Adornments (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Ceramic Capacitors (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP05007510A 2004-04-06 2005-04-06 Elément de construction formé en plaque et méthode de fabrication Active EP1584767B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05007510T PL1584767T3 (pl) 2004-04-06 2005-04-06 Element budowlany, zwłaszcza płytowy element budowlany i sposób wytwarzania elementu budowlanego, zwłaszcza płytowego elementu budowlanego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017325A DE102004017325A1 (de) 2004-04-06 2004-04-06 Bauelement, insbesondere plattenartiges Bauelement und Verfahren zur Herstellung eines Bauelement, insbesondere eines plattenartigen Bauelements
DE102004017325 2004-04-06

Publications (2)

Publication Number Publication Date
EP1584767A1 true EP1584767A1 (fr) 2005-10-12
EP1584767B1 EP1584767B1 (fr) 2009-10-07

Family

ID=34895522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007510A Active EP1584767B1 (fr) 2004-04-06 2005-04-06 Elément de construction formé en plaque et méthode de fabrication

Country Status (5)

Country Link
EP (1) EP1584767B1 (fr)
AT (1) ATE445052T1 (fr)
DE (2) DE102004017325A1 (fr)
ES (1) ES2333874T3 (fr)
PL (1) PL1584767T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5548340B2 (ja) * 2008-03-31 2014-07-16 ニチハ株式会社 木質セメント板の製造方法
SE535033C2 (sv) * 2010-09-14 2012-03-20 Goesta Sundberg Ett byggnadsmaterial innefattande PCM och ett klimathölje

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164511A (en) * 1963-10-31 1965-01-05 Elmendorf Armin Oriented strand board
DE2548210B2 (de) 1974-10-30 1979-09-06 Durisol Ag, Fuer Leichtbaustoffe, Dietikon, Zuerich (Schweiz) Verfahren zur Herstellung einer Bauplatte mit mindestens drei Ineinander übergehenden Schichten
DE3115077A1 (de) * 1981-04-14 1982-11-04 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Platte und aufbereitungsverfahren zu deren herstellung
DE3049997A1 (de) * 1980-03-04 1983-07-21 Kober, Harald, Ing.(grad.), 4690 Herne Bauelement aus einem faserarmierten baustoff
DE3406895A1 (de) 1984-02-25 1985-09-05 Simatupang, Maruli H., Dr., 2057 Reinbek Verfahren zur herstellung zementgebundener holzfaser-formkoerper
DE19826109C1 (de) 1998-06-12 1999-10-07 Bock Hans Peter Verfahren zur Herstellung einer Verbundplatte
DE19531481C2 (de) 1995-08-25 2000-06-08 Manfred Mahler Wärmedämmaterial aus Hobelspänen
DE10143612C1 (de) * 2001-09-06 2003-01-16 Knauf Westdeutsche Gips Bauplatte auf der Basis von Gips und Verfahren zur Herstellung derselben
US20030089061A1 (en) * 2000-10-10 2003-05-15 Deford Harvey Dale Composite building material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222872C2 (de) * 1991-08-09 1996-01-25 Siempelkamp Gmbh & Co Dreischichtige Baustoffplatte auf Gipsbasis und Verfahren zur Herstellung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164511A (en) * 1963-10-31 1965-01-05 Elmendorf Armin Oriented strand board
DE2548210B2 (de) 1974-10-30 1979-09-06 Durisol Ag, Fuer Leichtbaustoffe, Dietikon, Zuerich (Schweiz) Verfahren zur Herstellung einer Bauplatte mit mindestens drei Ineinander übergehenden Schichten
DE3049997A1 (de) * 1980-03-04 1983-07-21 Kober, Harald, Ing.(grad.), 4690 Herne Bauelement aus einem faserarmierten baustoff
DE3115077A1 (de) * 1981-04-14 1982-11-04 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Platte und aufbereitungsverfahren zu deren herstellung
DE3406895A1 (de) 1984-02-25 1985-09-05 Simatupang, Maruli H., Dr., 2057 Reinbek Verfahren zur herstellung zementgebundener holzfaser-formkoerper
DE19531481C2 (de) 1995-08-25 2000-06-08 Manfred Mahler Wärmedämmaterial aus Hobelspänen
DE19826109C1 (de) 1998-06-12 1999-10-07 Bock Hans Peter Verfahren zur Herstellung einer Verbundplatte
US20030089061A1 (en) * 2000-10-10 2003-05-15 Deford Harvey Dale Composite building material
DE10143612C1 (de) * 2001-09-06 2003-01-16 Knauf Westdeutsche Gips Bauplatte auf der Basis von Gips und Verfahren zur Herstellung derselben

Also Published As

Publication number Publication date
DE102004017325A1 (de) 2005-10-27
PL1584767T3 (pl) 2010-05-31
DE502005008265D1 (de) 2009-11-19
EP1584767B1 (fr) 2009-10-07
ES2333874T3 (es) 2010-03-02
ATE445052T1 (de) 2009-10-15

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