EP4311894A1 - Baustein mit schnittstellenzellen und mindestens einer mit einer holzfaserplatte gefüllten isolierkammer - Google Patents

Baustein mit schnittstellenzellen und mindestens einer mit einer holzfaserplatte gefüllten isolierkammer Download PDF

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Publication number
EP4311894A1
EP4311894A1 EP23187994.1A EP23187994A EP4311894A1 EP 4311894 A1 EP4311894 A1 EP 4311894A1 EP 23187994 A EP23187994 A EP 23187994A EP 4311894 A1 EP4311894 A1 EP 4311894A1
Authority
EP
European Patent Office
Prior art keywords
building block
concrete body
interface cells
insulation
wood fiber
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.)
Pending
Application number
EP23187994.1A
Other languages
English (en)
French (fr)
Inventor
Annabelle BRIZOU
Aurélie BOUCHIKHI-GERARDIN
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.)
Alkern Groupe
Original Assignee
Alkern Groupe
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 Alkern Groupe filed Critical Alkern Groupe
Publication of EP4311894A1 publication Critical patent/EP4311894A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
    • 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
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0256—Special features of building elements
    • E04B2002/0289—Building elements with holes filled with insulating material
    • E04B2002/0293—Building elements with holes filled with insulating material solid material

Definitions

  • the present invention relates to the field of building blocks, in particular, those incorporating a thermal insulation element.
  • building blocks are used in particular for the construction of homes with high energy performance.
  • an insulated building block 100 comprising a concrete body 101 extending longitudinally along a first axis X, laterally along a second axis Y and vertically along a third axis Z.
  • the concrete body 101 comprises a plurality of through cells 102 extending vertically.
  • the concrete body 101 comprises two rows Ra, Rb of through-cells 102 spaced laterally, each row comprising through-cells 102 aligned longitudinally, in particular three cells per row.
  • thermal insulation material M1 for example, an expanded polystyrene insert or cement foam.
  • a building block 100 has high thermal performance.
  • a “biosourced” insulation material that is to say, derived from biomass. and having a reduced carbon footprint storing atmospheric carbon and participating in the preservation of natural resources.
  • a “bio-sourced” M2 insulation material is sensitive to water, which can lead to the appearance of fungi within the M1 insulation material.
  • fungus is likely to appear in the housing, which presents a disadvantage to the durability of the wall formed with the building blocks.
  • An immediate solution is to add a fungicidal agent to the bio-based insulation material to reduce the appearance of fungus. Besides its high price, such fungicidal agent is not natural, which degrades the environmental performance of the building block.
  • a biosourced insulation material has a low pyrolysis temperature compared to a traditional insulation material such as an expanded polystyrene insert, which presents another disadvantage in the event of a fire.
  • the invention thus aims to eliminate at least some of these drawbacks.
  • the invention relates to a building block comprising a concrete body extending longitudinally along a first axis, laterally along a second axis and vertically along a third axis, the concrete body comprising a plurality of interface cells extending vertically and which are through, the concrete body comprising at least two rows of laterally spaced interface cells, each row comprising interface cells aligned longitudinally, the concrete body comprising at least one insulation cell, positioned laterally between said two rows, the insulation cell being filled with a wood fiber panel, the interface cells being empty.
  • a wood fiber panel as a “biosourced” insulation material between two rows of interface cells which remain empty.
  • the interface cells serve as a barrier against humidity and against flames, which prevents the development of fungi and the combustion of the wood fiber panel.
  • the interface cells protect the fiberboard on each side. It is thus possible to form a facade of a building with a building block having high thermal and environmental performance.
  • the wood fiber panel can thus fulfill its insulating function optimally, without risk of condensation in the facades of a building or propagation of fire through said facades.
  • the wood fiber panel has a thermal conductivity of between 0.035 and 0.040W/mK.
  • the insulation cell has a width of between 50mm and 100mm, preferably between 55mm and 65mm. Such parameters ensure efficient thermal insulation.
  • the wood fiber panel is obtained by the dry process.
  • the wood fiber panel has a density of between 105 and 115 kg/m3. Such a density makes it possible to increase the rigidity of the wood fiber panel to promote its insertion into the insulation cell in an industrial manner.
  • the building block has a thermal resistance greater than or equal to 1m2.K/W.
  • the insulation cell is spaced from the interface cells by a lateral distance of between 15 and 23mm. This helps to provide effective protection against water condensation and the spread of fire.
  • the interface cells have a lateral thickness of between 5mm and 40mm in order to form an efficient barrier.
  • the cumulative length of the interface cells of a row is greater than 80% of the length of the concrete body.
  • the cumulative length is less than 90%, which contributes to the holding of the building block. Thus, protection is ensured over the entire length.
  • the length of the insulation cell is greater than 80% of the length of the concrete body, preferably greater than 90%.
  • thermal insulation is ensured over the entire length.
  • the concrete body having slots at its longitudinal ends
  • the wood fiber panel has tongues mounted in the slots at its longitudinal ends. This advantageously makes it possible to avoid the formation of thermal bridges when several building blocks are associated longitudinally.
  • the invention relates to a building block B comprising a concrete body 1 extending longitudinally along a first axis , a lower horizontal face and four vertical faces.
  • the concrete body 1 has a length of between 490mm and 600mm, a width of between 180mm and 300mm and a height of between 150mm and 300mm.
  • the concrete body 1 has a length of 495mm, a width of 200mm and a height of 252mm.
  • the concrete body 1 can be made from different types of concrete, in particular, with common aggregates or light aggregates known to those skilled in the art.
  • the concrete body 1 comprises a plurality of interface cells 2 which pass through and which extend vertically. By crossing, we mean that the interface cell 2 opens onto the upper horizontal face and the lower horizontal face.
  • the concrete body 1 comprises at least two rows Ra, Rb of interface cells 2 spaced laterally along the second axis Y, each row Ra, Rb comprising interface cells 2 which are through and aligned longitudinally along the first axis X.
  • the two rows Ra, Rb are spaced laterally according to a lateral distance L1 of between 10cm and 15cm.
  • the interface cells 2 are empty of air, that is to say, free of thermal insulation material.
  • each interface cell 2 has a rectangular or oblong section.
  • the concrete body 1 has only two rows Ra, Rb which are located at the lateral ends.
  • Each row Ra, Rb has three interface cells 2.
  • each interface cell 2 has a width defined along the Y axis of between 5mm and 40mm, preferably between 20mm and 40mm, and a length defined along the X axis of between 130mm and 150mm.
  • the interface cells 2 occupy, cumulatively, at least 80% of the length of the concrete body 1. This makes it possible to form a high-performance barrier over the entire length of the building block B.
  • the cumulative length of the interface cells 2 is less than 90% of the length of the concrete body 1, which provides good mechanical strength of the concrete body 1.
  • the concrete body 1 comprises at least one insulation cell 3, which is through and positioned laterally between said two rows Ra, Rb.
  • the concrete body 1 has a single insulation cell 3 but it could include several, in particular, two separated by a vertical wall.
  • a single insulation cell 3 is nevertheless preferred because it makes it possible to improve thermal performance.
  • the insulation cell 3 has a width defined along the Y axis of between 50mm and 100mm, preferably between 55mm and 65mm, and a length defined along the X axis of between 400mm and 480mm, preferably between 450mm and 470mm .
  • the interface cell 3 occupies at least 80% of the length of the concrete body 1, more preferably, at least 90%. This makes it possible to form an efficient thermal barrier over the entire length of the building block B.
  • the insulation cell 3 is spaced from the interface cells 2 by a lateral distance of between 15 and 23 mm in order to avoid the transmission of humidity and the transmission of flames.
  • the insulation cell 3 is filled with a “bio-sourced” wood fiber panel 4, that is to say, storing atmospheric carbon and participating in the preservation of natural resources.
  • the wood fiber panel 4 is made more than 90% with resinous woods, in particular, by dry process. This advantageously reduces the risk of condensation and the appearance of fungus.
  • the insulation material 4 has a thermal conductivity (W/mK) of between 0.035 and 0.040.
  • the wood fiber panel 4 has a density of between 105 and 115 kg/m 3 .
  • the wood fiber panel 4 can thus be in the form of an insert which can be manipulated by hand or using a machine.
  • the wood fiber board 4 does not need to be treated with a fungicidal agent.
  • the wood fiber panel 4 may include a fungicidal agent.
  • the thermal insulation material 4 To install the thermal insulation material 4, it is moved along the Z axis from the upper horizontal face towards the lower horizontal face of the concrete body 1 in the insulation cell 3.
  • a building block B whose thermal resistance is at least equal to 1m2.K /W and which stores atmospheric carbon to contribute to the preservation of natural resources.
  • the building block B can be glued in a manner similar to a building block according to the prior art.
  • the presence of interface cells 2, on either side of the insulation cell 3 in which the wood fiber panel 4 is mounted makes it possible to protect the wood fibers against humidity, which protects the wood fiber panel 4 against the development of fungi.
  • the interface cells 2 also make it possible to protect the wood fibers against fire by limiting the propagation of flames.
  • Building block B thus complies with regulatory requirements on fire resistance and the propagation of fire through building facades.
  • the building block B according to the invention offers improved thermal resistance and optimal mechanical strength while being simple to manufacture and implement.
  • the concrete body 1 has slots 1a, 1b at its longitudinal ends.
  • the slots 1a, 1b extend vertically from the upper horizontal surface of the building block B.
  • the wood fiber panel 4 has at its longitudinal ends tongues 4a, 4b mounted in the slots 1a, 1b.
  • tongues 4a, 4b make it possible to ensure continuity of thermal insulation when several building blocks B are associated longitudinally with each other. Thermal bridges are thus reduced.
  • the presence of tabs 4a, 4b also makes it possible to guide the insertion of the wood fiber panel 4 into the insulation cell 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)
  • Building Environments (AREA)
EP23187994.1A 2022-07-29 2023-07-27 Baustein mit schnittstellenzellen und mindestens einer mit einer holzfaserplatte gefüllten isolierkammer Pending EP4311894A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2207869A FR3138456A1 (fr) 2022-07-29 2022-07-29 Bloc de construction comprenant des alvéoles d’interface et au moins une alvéole d’isolation remplie d’un panneau en fibres de bois

Publications (1)

Publication Number Publication Date
EP4311894A1 true EP4311894A1 (de) 2024-01-31

Family

ID=83439213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23187994.1A Pending EP4311894A1 (de) 2022-07-29 2023-07-27 Baustein mit schnittstellenzellen und mindestens einer mit einer holzfaserplatte gefüllten isolierkammer

Country Status (2)

Country Link
EP (1) EP4311894A1 (de)
FR (1) FR3138456A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4357547A1 (de) * 2022-10-21 2024-04-24 Ceramix AG Bauprodukt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200335136Y1 (ko) * 2003-06-28 2003-12-03 오경희 조립식 기능성 조적용 건축자재
FR3023859A1 (fr) 2014-07-15 2016-01-22 Perin Et Cie Ets Element de construction isolant, procede de fabrication et materiau isolant correspondants
FR3032735A1 (fr) 2015-02-12 2016-08-19 Alkern Bloc de construction comportant un element isolant s'etendant sur toute sa longueur
CN113006328A (zh) * 2021-02-06 2021-06-22 马银河 一种混凝土保温墙体及其制备工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200335136Y1 (ko) * 2003-06-28 2003-12-03 오경희 조립식 기능성 조적용 건축자재
FR3023859A1 (fr) 2014-07-15 2016-01-22 Perin Et Cie Ets Element de construction isolant, procede de fabrication et materiau isolant correspondants
FR3032735A1 (fr) 2015-02-12 2016-08-19 Alkern Bloc de construction comportant un element isolant s'etendant sur toute sa longueur
CN113006328A (zh) * 2021-02-06 2021-06-22 马银河 一种混凝土保温墙体及其制备工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4357547A1 (de) * 2022-10-21 2024-04-24 Ceramix AG Bauprodukt

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Publication number Publication date
FR3138456A1 (fr) 2024-02-02

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