EP3102751B1 - Construction element with at least two blocks - Google Patents

Construction element with at least two blocks Download PDF

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Publication number
EP3102751B1
EP3102751B1 EP15702678.2A EP15702678A EP3102751B1 EP 3102751 B1 EP3102751 B1 EP 3102751B1 EP 15702678 A EP15702678 A EP 15702678A EP 3102751 B1 EP3102751 B1 EP 3102751B1
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EP
European Patent Office
Prior art keywords
holes
block
blocks
element according
face
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EP15702678.2A
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German (de)
French (fr)
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EP3102751A1 (en
Inventor
Dominique Rossi
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Individual
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Individual
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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
    • E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • E04C1/395—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for claustra, fences, planting walls, e.g. sound-absorbing
    • 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
    • E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/16—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
    • E04B2/18—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
    • 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
    • E04B2002/0202—Details of connections
    • E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
    • E04B2002/0213—Non-undercut connections, e.g. tongue and groove connections of round shape
    • 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
    • E04B2002/026—Splittable building elements

Definitions

  • the present invention relates in particular to a building block as well as to a construction element comprising several blocks and an assembly allowing the composition of a wall wall using the blocks in question.
  • a preferred application relates to the building and public works industry, in particular for the production of low walls, retaining walls, anti-noise walls or the like.
  • Patent publication DE202011110256U1 describes a plastic block with holes.
  • Patent publication CH154737A discloses a block of adjustable length by break lines at which holes and grooves are present to weaken the block.
  • EP2546427A1 shows modular building blocks with each of the male and female assembly means, and a central hole.
  • FR2275600A1 and DE19903287A1 describes a block comprising holes with part of a portion flared from its mouth on one side.
  • the present invention falls within this framework and provides for this purpose a concrete construction element according to claim 1.
  • the essentially parallelepipedal conformation of the blocks makes them compact and resistant so that, contrary to the prejudices of the state of the art, the invention proposes to make holes within the blocks.
  • These holes can be formed from the start, for example during molding. Furthermore, the holes are distributed so that the resumption of the mechanical effects is distributed and too high stress concentrations are avoided. In addition to the weight gain resulting from the holes, their original distribution makes it possible to create gripping zones distributed over the face of the block.
  • the handling capacity is important because these are blocks that must be able to move, cut, and generally assemble by hand;
  • the invention further relates to a building element comprising at least two blocks, said blocks being aligned along a depth dimension of the block.
  • the invention also relates to a composition assembly of a wall wall comprising at least three blocks, the three blocks comprising a first block, a second block superimposed on the first block and a third block juxtaposed with the first block.
  • the element of the invention is made from concrete, for example by molding.
  • It can also have a substantially rectangular parallelepiped configuration.
  • a building element in a single coherent element called a building element is made in a plurality of building blocks.
  • the whole is coherent because the blocks 1, 2, 3, 4 are assembled in alignment by one of their faces.
  • the figure 1 illustrates this cooperation.
  • the cohesion between blocks can be removed by applying a force at the level of rupture zones located at the border between two adjacent blocks.
  • the rupture zones 14 are here formed of notches formed on the one hand on a first face 5 of the construction element and on the other hand on a second face 6 located opposite the first face 5.
  • the rupture zones 14 are advantageously parallel grooves oriented along a wide dimension marked "l" in the figure 3a of the construction element, perpendicular to the alignment orientation of the blocks 1, 2, 3, 4 hereinafter referred to as depth "p".
  • the rupture zones 14 have a notch profile that is higher than it is wide.
  • their height is 13 millimeters and the width is 10 millimeters for blocks 1, 2, 3, 4 that are 87 millimeters high.
  • a construction element comprises 4 blocks 1, 2, 3, 4 aligned but this embodiment is not limiting and more or less blocks 1, 2, 3, 4 could be associated to form an element.
  • each block 1, 2, 3, 4 comprises at least one groove 11 forming a relief entering towards the inside of the block 1, 2, 3, 4.
  • the height of the groove is less than 15% of that of the block.
  • a semi-circular profile groove with a diameter of 22 millimeters may be suitable, ie a height of 11 millimeters.
  • the grooves 11 are advantageously identical for each of the blocks.
  • the blocks 1, 2, 3, 4 are preferably of identical or similar configuration.
  • each block 1, 2, 3, 4 comprises at least one tongue 10 projecting outwardly.
  • Each groove 11 is opposite (that is to say parallel on an opposite face) with a tongue 10 so that it is easily understood that the association of a tongue of a block with a groove of another block allows their cooperation in superposition.
  • a dimension and a shape are provided for the tongue 10 able to cooperate with a groove 11 to form a male / female system.
  • the tongue 10 may have a semi-circular profile with a diameter slightly smaller than that of the groove 11, for example a diameter of 18 millimeters corresponding to a height of the tongue 10 of 9 millimeters.
  • the tongues 10 are advantageously formed in a parallel and similar manner for each block 1, 2, 3, 4 and are advantageously parallel to the width “l” of the blocks 1, 2, 3, 4.
  • the blocks 1, 2, 3, 4 each have a rectangular section in a plane along the depth of the block.
  • a depth to height ratio of each block 1, 2, 3, 4 of between 1 and 2 is satisfactory.
  • the section can be square.
  • the invention forms holes 16, the advantageous configurations of which are given below and which are at least 3 in number, the holes not all being aligned.
  • each block 1, 2, 3, 4 has six holes 16, organized in two series of three holes; preferably these series are directed along lines 17, 18 parallel to the depth "p" of the block 1, 2, 3, 4 recalled in figure 3b .
  • the holes 16 also form three columns according to the height of the blocks given under the reference "h” in figure 3b . This case is not limiting and the holes can be arranged other than in columns, as is the case with figures 5a and 5b .
  • the holes 16 of each series are equally spaced from each other and the end holes 16 of each series are equidistant from their respective edges of the block 1, 2, 3, 4.
  • some or all of the holes 16 may have a flared portion, for example conical 19, at the level of the face 7 on which they open out.
  • a portion 19 extends from a zone in depth of the hole 16, towards the mouth of the hole 16 at the level of the face 7.
  • This face 7 is a side face of the block 1, 2, 3, 4, c ' that is to say extending in the direction in depth and definitively with a fourth face 12 opposite, the width "l" of the block 1, 2, 3, 4.
  • the hole 16 comprises a central portion 20 of constant section.
  • the portion 19 may have a depth less than 25% of the length of the block.
  • the hole 16 in question may be blind but the embodiment of the figures 2a and 2b the shows opening onto the fourth face 12.
  • a flared portion similar to that indicated above is formed on the hole 16 towards its mouth on the fourth face 12.
  • the figures 3a and 3b which do not belong to the invention, show a possibility according to which the holes 16 opening onto the third face 7 are blind. Only some of the holes could be blind, the others being through.
  • the depth of the blind holes 16 is less than half of the width "l" of the block 1, 2, 3, 4.
  • additional holes 16 are formed from the fourth face 12 so here symmetrical. A middle zone of the block is also advantageously maintained where the holes 16 are absent.
  • the figures 4a and 4b which do not belong to the invention, show holes 16 having different sizes.
  • the holes 16 are circular.
  • we trained figures 4a and 4b holes of different diameters with for example a doubling of diameter for at least one hole 16.
  • the holes 16 are of the same section but are organized in two rows with an offset along the depth dimension.
  • none of the holes 16 is located opposite another hole 16 in the direction in height.
  • the figures 1 to 5b give examples of various possible but non-limiting aspects of blocks 1, 2, 3, 4. These aspects can be implemented in combination according to any association even if they are not illustrated or described previously in association.
  • the holes 16 may have a diameter of 20 to 30 mm, preferably 25 mm, for block dimensions corresponding to the numbered example given above.
  • a building element has been split into two parts each comprising two blocks 1, 2 and 3, 4.
  • the two pairs of blocks are superimposed so that block 1 is located above block 3 and block 2 is located on the top. above the block 4. Thanks to this configuration, we alternate lines with the appearance of exploded stone from the faces 9 obtained at the dissociation of the block 1, 2, 3, 4 and smooth lines corresponding to the front 15 of the block 1 or 4, depending on the height of the structure. The same method is reproduced to again superimpose blocks 3, 4 and blocks 1,2.
  • the modularity of the invention thus makes it possible to mount structures such as low walls, retaining walls, anti-noise walls or others. In some cases, it is advantageous to strengthen the consistency of the structure and the volume of soil it supports.
  • the element may comprise, on at least one of the blocks 1, 2, 3, a notch produced in a hollow on one and / or the other of the first face 5 and the second face 6.
  • the notch is a groove parallel to the tongues 10 on the first face 5.
  • the depth of the notch is for example between 10 and 30% of the height “h” of the equipped block.
  • the latter is preferably at least one of the end blocks of the element, from block 1 and block 4.
  • the notch is advantageously made more towards the front face of the end block 1, 4 than towards the ends.
  • tabs 10. This allows the notch to cooperate with a stabilization sheet, in particular a grid of the cone called a geogrid. It is thus a mesh surface, preferably made of a metallic material or polymers such as polyester or rigid polypropylene. It is advantageously sufficiently rigid to have a planar shape at rest.
  • the grid is such that it has an at least partially rectilinear border so as to allow insertion into the notch of the block 1, 4 considered. This border, folded into the notch, retains the rest of the grid which optionally also applies to the surface of the face 5 of the block located between the notch and the front face of the block.
  • the figure 6 shows such an embodiment with two grids.
  • the superposition of two blocks makes it possible to embed the grid in an interstitial space, with two supports generated by the blocks.
  • the grid is thus retained in the notch and by the blocks. Its border cannot come out of the notch.
  • the surface portion of the face equipped with the notch, located between the assembly means of the front face of the block is advantageously along a plane slightly set back relative to a base plane where the assembly means such as the tabs are located.
  • the height of the block is a little less, preferably by a value corresponding to the thickness of the grid. This height shift is, for example, visible to figures 2b and 3b , and 4a and 5a .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Revetment (AREA)
  • Fencing (AREA)

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

La présente invention est relative notamment à un bloc de construction ainsi qu'à un élément de construction comportant plusieurs blocs et un ensemble permettant la composition d'une paroi murale utilisant les blocs en question.The present invention relates in particular to a building block as well as to a construction element comprising several blocks and an assembly allowing the composition of a wall wall using the blocks in question.

Une application préférée concerne l'industrie du bâtiment et des travaux publics en particulier pour la réalisation de murets, de murs de soutènement, de murs anti-bruit ou autres.A preferred application relates to the building and public works industry, in particular for the production of low walls, retaining walls, anti-noise walls or the like.

ETAT DE LA TECHNIQUESTATE OF THE ART

Dans ce dernier domaine, on connaît de la publication WO A 9622427 un élément de construction pour monter à sec des murs de soutènement à inclinaison variable. Suivant cette antériorité, des éléments sont réalisés avec des parties fragmentables de sorte à en tirer une pluralité de blocs individuels. On peut ainsi faire varier la composition murale, le système étant modulable. Par ailleurs, les blocs suivant l'antériorité comportent des moyens de fixation relative par des systèmes tenon et mortaise permettant le blocage de blocs en superposition. Malgré la flexibilité d'emploi de tels éléments, les techniques actuelles souffrent de limitation. Ces éléments sont normalement à monter à la main mais s'avèrent peu pratiques à manipuler.In this last area, we know from the publication WO A 9622427 a construction element for dry erection of retaining walls with variable inclination. According to this prior art, elements are made with fragmentable parts so as to derive therefrom a plurality of individual blocks. The wall composition can thus be varied, the system being modular. Furthermore, the blocks according to the prior art include relative fixing means by tenon and mortise systems allowing the blocking of blocks in superposition. Despite the flexibility of use of such elements, current techniques suffer from limitation. These elements are normally to be assembled by hand but prove to be impractical to handle.

La publication brevet DE202011110256U1 décrit un bloc en matière plastique avec des trous. La publication brevet CH154737A divulgue un bloc de longueur réglable par des lignes de rupture au niveau desquelles des trous et des rainures sont présents pour affaiblir le bloc. EP2546427A1 montre quant à lui des blocs de construction modulables avec chacun des moyens d'assemblage mâle et femelle, et un trou central. FR2275600A1 et DE19903287A1 décrit un bloc comprenant des trous avec une part de portion évasée à partir de son embouchure sur une face.Patent publication DE202011110256U1 describes a plastic block with holes. Patent publication CH154737A discloses a block of adjustable length by break lines at which holes and grooves are present to weaken the block. EP2546427A1 shows modular building blocks with each of the male and female assembly means, and a central hole. FR2275600A1 and DE19903287A1 describes a block comprising holes with part of a portion flared from its mouth on one side.

Il existe un besoin de proposer un bloc amélioré dans lequel la manipulation des éléments est améliorée.There is a need to provide an improved block in which the handling of the elements is improved.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention s'inscrit en ce cadre et propose à cet effet un élément de construction en béton selon la revendication 1.The present invention falls within this framework and provides for this purpose a concrete construction element according to claim 1.

Ainsi, sur l'ensemble des trous, au moins certains d'entre eux ne sont pas alignés.Thus, on all the holes, at least some of them are not aligned.

La conformation essentiellement parallélépipédique des blocs les rend compacts et résistants si bien que, à l'opposé des préjugés de l'état de la technique, l'invention propose de réaliser des trous au sein des blocs. Ces trous peuvent être formés dès l'origine, par exemple lors d'un moulage. Par ailleurs, les trous sont répartis si bien que la reprise des effets mécaniques est répartie et de trop fortes concentrations de contraintes sont évitées. Outre le gain de poids issu des trous, leur répartition originale permet de créer des zones de préhension réparties sur la face du bloc.The essentially parallelepipedal conformation of the blocks makes them compact and resistant so that, contrary to the prejudices of the state of the art, the invention proposes to make holes within the blocks. These holes can be formed from the start, for example during molding. Furthermore, the holes are distributed so that the resumption of the mechanical effects is distributed and too high stress concentrations are avoided. In addition to the weight gain resulting from the holes, their original distribution makes it possible to create gripping zones distributed over the face of the block.

La capacité de manipulation est importante car il s'agit ici de blocs qu'il faut pouvoir déplacer, couper, monter généralement à la main ; L'invention concerne en outre un élément de construction comportant au moins deux blocs, lesdits blocs étant alignés suivant une dimension en profondeur du bloc.The handling capacity is important because these are blocks that must be able to move, cut, and generally assemble by hand; The invention further relates to a building element comprising at least two blocks, said blocks being aligned along a depth dimension of the block.

L'invention concerne par ailleurs un ensemble de composition d'une paroi murale comportant au moins trois blocs, les trois blocs comprenant un premier bloc, un deuxième bloc superposé au premier bloc et un troisième bloc juxtaposé au premier bloc.The invention also relates to a composition assembly of a wall wall comprising at least three blocks, the three blocks comprising a first block, a second block superimposed on the first block and a third block juxtaposed with the first block.

BREVE INTRODUCTION DES DESSINSBRIEF INTRODUCTION TO THE DRAWINGS

D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui suit, et en regard des dessins annexés donnés à titre d'exemples non limitatifs et sur lesquels :

  • la figure 1 présente un ensemble de quatre blocs ruptables ;
  • les figures 2a et 2b montrent respectivement en coupe transversale horizontale et de profil, un mode de réalisation conforme à l'invention ;
  • les figures 3a et 3b montrent respectivement en coupe transversale horizontale et de profil, un autre mode de réalisation qui n'est pas conforme à l'invention ;
  • les figures 4a et 4b présentent respectivement de profil et en coupe transversale verticale d'autres possibilités qui n'est pas conforme à l'invention, tout comme les figures 5a et 5b ;
  • la figure 6 présente un ensemble de soutènement réalisable avec l'invention.
Other characteristics, aims and advantages of the present invention will emerge on reading the detailed description which follows, and with regard to the appended drawings given by way of non-limiting examples and in which:
  • the figure 1 presents a set of four breakable blocks;
  • the figures 2a and 2b show respectively in horizontal cross section and in profile, an embodiment according to the invention;
  • the figures 3a and 3b show respectively in horizontal cross section and in profile, another embodiment which is not in accordance with the invention;
  • the figures 4a and 4b present respectively in profile and in vertical cross section other possibilities which are not in accordance with the invention, just like the figures 5a and 5b ;
  • the figure 6 presents a support assembly achievable with the invention.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

Avant d'entrer dans le détail de modes de réalisation notamment en référence aux dessins, on énonce ci-après des options que l'invention peut présenter.

  • au moins un des trous 16 comporte une portion évasée à partir de son embouchure sur la troisième face 7, avec une section décroissante vers l'intérieur du bloc ; cela permet une meilleure prise en main et le caractère progressif de la variation de section offre une très faible diminution de résistance mécanique.
  • la portion évasée est une portion conique 19 ;
  • la portion évasée s'étend depuis la troisième face jusqu'à la quatrième face avec une décroissance de section de la troisième face vers la quatrième face, la variation de section peut être de 2mm au diamètre entre les deux faces.
  • au moins un des trous 16 est débouchant sur une quatrième face 12 du bloc 1, 2, 3, 4, ladite quatrième face 12 étant opposée à la troisième face 7 ;
  • au moins un des trous 16 comporte une portion évasée à partir de son embouchure sur la troisième face 7 suivie d'une portion de section constante elle-même suivie d'une portion évasée de section croissante vers une embouchure sur la quatrième face 12 ;
  • au moins deux trous 16 présentent des sections de tailles différentes ;
  • les trous 16 ont une section circulaire ;
  • l'élément selon l'invention comporte deux séries de trous 16 alignés suivant deux lignes 17, 18 ;
  • les deux lignes 17, 18 sont parallèles à la dimension en profondeur ;
  • chaque série de trous 16 comporte trois trous ;
  • chacun des trois trous 16 d'une série est aligné, suivant une dimension en hauteur du bloc, avec un des trois trous 16 de l'autre série ;
  • les trous 16 d'une des séries sont décalés des trous 16 de l'autre série suivant la dimension en profondeur ;
  • la surface de l'embouchure des trous 16 sur la troisième face 7 est inférieure à 20% de la surface de la troisième face 7 ;
  • au moins un des trous 16 est borgne.
  • la profondeur du au moins un trou borgne est comprise entre 20 et 45% de la largeur du bloc 1, 2, 3, 4 ;
  • l'élément comporte au moins trois trous 16 additionnels formés à partir d'une quatrième face 12 du bloc 1, 2, 3, 4 opposée à la troisième face 7, les au moins trois trous 16 étant non alignés ;
  • les trous 16 additionnels sont symétriques des trous 16 débouchant sur la troisième face 7 relativement à un plan médian du bloc 1, 2, 3, 4 suivant la dimension en profondeur.
Before going into the details of embodiments, in particular with reference to the drawings, options that the invention may present are listed below.
  • at least one of the holes 16 comprises a portion flared from its mouth on the third face 7, with a section decreasing towards the interior of the block; this allows better handling and the progressive nature of the variation in section offers a very small reduction in mechanical resistance.
  • the flared portion is a conical portion 19;
  • the flared portion extends from the third face to the fourth face with a decrease in section from the third face to the fourth face, the variation in section may be 2mm in diameter between the two faces.
  • at least one of the holes 16 opens onto a fourth face 12 of the block 1, 2, 3, 4, said fourth face 12 being opposite to the third face 7;
  • at least one of the holes 16 comprises a portion flared from its mouth on the third face 7 followed by a portion of constant section itself followed by a flared portion of section increasing towards a mouth on the fourth face 12;
  • at least two holes 16 have sections of different sizes;
  • the holes 16 have a circular section;
  • the element according to the invention comprises two series of holes 16 aligned along two lines 17, 18;
  • the two lines 17, 18 are parallel to the dimension in depth;
  • each series of holes 16 has three holes;
  • each of the three holes 16 of a series is aligned, along a dimension in height of the block, with one of the three holes 16 of the other series;
  • the holes 16 of one of the series are offset from the holes 16 of the other series according to the depth dimension;
  • the area of the mouth of the holes 16 on the third face 7 is less than 20% of the area of the third face 7;
  • at least one of the holes 16 is blind.
  • the depth of the at least one blind hole is between 20 and 45% of the width of the block 1, 2, 3, 4;
  • the element comprises at least three additional holes 16 formed from a fourth face 12 of the block 1, 2, 3, 4 opposite to the third face 7, the at least three holes 16 being not aligned;
  • the additional holes 16 are symmetrical to the holes 16 opening onto the third face 7 relative to a median plane of the block 1, 2, 3, 4 along the depth dimension.

L'élément de l'invention est réalisé à partir de béton, par exemple par moulage.The element of the invention is made from concrete, for example by molding.

Il peut par ailleurs présenter une configuration sensiblement parallélépipédique rectangle.It can also have a substantially rectangular parallelepiped configuration.

Suivant l'invention, en un seul élément cohérent appelé élément de construction est réalisée en une pluralité de blocs de construction. L'ensemble est cohérent car les blocs 1, 2, 3, 4 sont assemblés en alignement par l'une de leurs faces. La figure 1 illustre cette coopération. Pour autant, la cohésion entre blocs peut être supprimée en appliquant un effort au niveau de zones de rupture situées à la frontière entre deux blocs adjacents. Tel que représenté, les zones de rupture 14 sont ici formées d'entailles formées d'une part sur une première face 5 de l'élément de construction et d'autre part sur une deuxième face 6 située en vis-à-vis de la première face 5. Les zones de rupture 14 sont avantageusement des rainures parallèles et orientées suivant une dimension large repérée « l » dans la figure 3a de l'élément de construction, perpendiculaire à l'orientation d'alignement des blocs 1, 2, 3, 4 ci-après dénommée profondeur « p ».According to the invention, in a single coherent element called a building element is made in a plurality of building blocks. The whole is coherent because the blocks 1, 2, 3, 4 are assembled in alignment by one of their faces. The figure 1 illustrates this cooperation. However, the cohesion between blocks can be removed by applying a force at the level of rupture zones located at the border between two adjacent blocks. As shown, the rupture zones 14 are here formed of notches formed on the one hand on a first face 5 of the construction element and on the other hand on a second face 6 located opposite the first face 5. The rupture zones 14 are advantageously parallel grooves oriented along a wide dimension marked "l" in the figure 3a of the construction element, perpendicular to the alignment orientation of the blocks 1, 2, 3, 4 hereinafter referred to as depth "p".

A titre préféré, les zones de rupture 14 ont un profil en entaille plus haut que large. Par exemple, leur hauteur est de 13 millimètres et la largeur de 10 millimètres pour des blocs 1, 2, 3, 4 de 87 millimètres de haut.Preferably, the rupture zones 14 have a notch profile that is higher than it is wide. For example, their height is 13 millimeters and the width is 10 millimeters for blocks 1, 2, 3, 4 that are 87 millimeters high.

La décohésion entre deux blocs 1, 2, 3, 4 peut être obtenue simplement par frappe de l'utilisateur de sorte à profiter de la fragilité de la zone de rupture 14. On peut ainsi libérer un ou plusieurs blocs ou encore former des sous-groupes de blocs 1, 2, 3, 4. On notera que lors de cette étape, la face 9 du bloc 1, 2, 3, 4 considérée après dissociation présente un aspect à relief susceptible d'imiter la pierre éclatée. On peut par conséquent profiter de la phase de fragmentation d'un élément de construction pour obtenir un ou plusieurs blocs dont l'une des faces présente un aspect non lisse de sorte à obtenir des variations dans la composition murale. Dans l'exemple illustré particulièrement visible en figure 1, un élément de construction comporte 4 blocs 1, 2, 3, 4 alignés mais ce mode de réalisation n'est pas limitatif et on pourrait associer plus ou moins de blocs 1, 2, 3, 4 pour former un élément.The decohesion between two blocks 1, 2, 3, 4 can be obtained simply by striking the user so as to take advantage of the fragility of the rupture zone 14. It is thus possible to free one or more blocks or to form sub- groups of blocks 1, 2, 3, 4. It will be noted that during this step, the face 9 of the block 1, 2, 3, 4 considered after dissociation has a raised appearance capable of imitating the exploded stone. It is therefore possible to take advantage of the fragmentation phase of a construction element to obtain one or more blocks, one of the faces of which has a non-smooth appearance so as to obtain variations in the wall composition. In the example illustrated particularly visible in figure 1 , a construction element comprises 4 blocks 1, 2, 3, 4 aligned but this embodiment is not limiting and more or less blocks 1, 2, 3, 4 could be associated to form an element.

Au niveau d'une face supérieure ici dénommée première face 5, chaque bloc 1, 2, 3, 4 comporte au moins une rainure 11 formant un relief rentrant vers l'intérieur du bloc 1, 2, 3, 4. A titre préféré, la hauteur de la rainure est inférieure à 15% de celle du bloc. Par exemple, pour un bloc de hauteur h de 87 millimètres, une rainure de profil semi-circulaire de diamètre 22 millimètres pourra convenir, soit une hauteur de 11 millimètres. Les rainures 11 sont avantageusement identiques pour chacun des blocs. D'ailleurs, les blocs 1, 2, 3, 4 sont préférentiellement de configuration identique ou similaire.At the level of an upper face here called the first face 5, each block 1, 2, 3, 4 comprises at least one groove 11 forming a relief entering towards the inside of the block 1, 2, 3, 4. Preferably, the height of the groove is less than 15% of that of the block. For example, for a block of height h of 87 millimeters, a semi-circular profile groove with a diameter of 22 millimeters may be suitable, ie a height of 11 millimeters. The grooves 11 are advantageously identical for each of the blocks. Moreover, the blocks 1, 2, 3, 4 are preferably of identical or similar configuration.

Au niveau d'une face inférieure ci-après deuxième face 6, chaque bloc 1, 2, 3, 4 comporte au moins une languette 10 faisant saillie vers l'extérieur. Chaque rainure 11 est en vis-à-vis (c'est-à-dire parallèles sur une face opposée) d'une languette 10 si bien que l'on comprend aisément que l'association d'une languette d'un bloc avec une rainure d'un autre bloc permet leur mise en coopération en superposition. On prévoit une dimension et une forme pour la languette 10 apte à coopérer avec une rainure 11 pour former un système mâle/femelle. Ainsi, la languette 10 peut comporter un profil semi circulaire d'un diamètre légèrement inférieur à celui de la rainure 11, par exemple un diamètre de 18 millimètres correspondant à une hauteur de languette 10 de 9 millimètres.At a lower face, hereinafter second face 6, each block 1, 2, 3, 4 comprises at least one tongue 10 projecting outwardly. Each groove 11 is opposite (that is to say parallel on an opposite face) with a tongue 10 so that it is easily understood that the association of a tongue of a block with a groove of another block allows their cooperation in superposition. A dimension and a shape are provided for the tongue 10 able to cooperate with a groove 11 to form a male / female system. Thus, the tongue 10 may have a semi-circular profile with a diameter slightly smaller than that of the groove 11, for example a diameter of 18 millimeters corresponding to a height of the tongue 10 of 9 millimeters.

Bien entendu le placement de la languette 10 et de la rainure 11 pourrait être inverse.Of course the placement of the tongue 10 and the groove 11 could be reversed.

Comme précédemment, les languettes 10 sont avantageusement formées de manière parallèle et similaire pour chaque bloc 1, 2, 3, 4 et sont avantageusement parallèles à la largeur « l » des blocs 1, 2, 3, 4.As before, the tongues 10 are advantageously formed in a parallel and similar manner for each block 1, 2, 3, 4 and are advantageously parallel to the width “l” of the blocks 1, 2, 3, 4.

Toujours à titre préféré, les blocs 1, 2, 3, 4 ont chacun une coupe rectangulaire dans un plan suivant la profondeur du bloc. Par exemple, un ratio profondeur sur hauteur de chaque bloc 1, 2, 3, 4 compris entre 1 et 2 donne satisfaction. La section peut être carrée.Still preferably, the blocks 1, 2, 3, 4 each have a rectangular section in a plane along the depth of the block. For example, a depth to height ratio of each block 1, 2, 3, 4 of between 1 and 2 is satisfactory. The section can be square.

En revenant à l'exemple précédemment évoqué, on peut obtenir les paramètres dimensionnels suivants :

  • profondeur de chaque bloc : 250 millimètres (soit profondeur d'un élément de construction doté de 4 blocs : 1000 millimètres)
  • hauteur h de chaque bloc : 87 millimètres
  • largeur de chaque bloc : 130 millimètres
  • hauteur de rainure 11 : 11 millimètres
  • hauteur de languette 10 : 9 millimètres
  • hauteur de zone de rupture 14 : 13 millimètres
Returning to the example previously mentioned, the following dimensional parameters can be obtained:
  • depth of each block: 250 millimeters (i.e. depth of a construction element with 4 blocks: 1000 millimeters)
  • height h of each block: 87 millimeters
  • width of each block: 130 mm
  • groove height 11: 11 millimeters
  • tongue height 10: 9 millimeters
  • height of breakage zone 14: 13 millimeters

On a constaté qu'avec ces paramètres, la résistance mécanique était optimisée tout en permettant trois zones de fixation sur chaque bloc.It was found that with these parameters, the mechanical strength was optimized while allowing three fixing zones on each block.

Cependant, avec ces seuls paramètres, les éléments s'avèrent fort denses et particulièrement difficiles à manipuler, lorsqu'ils sont en béton.However, with these parameters alone, the elements turn out to be very dense and particularly difficult to handle, when they are made of concrete.

De manière surprenante, il a été constaté que la formation d'une pluralité de trous 16 dans les blocs 1, 2, 3, 4 ne nuisait pas fondamentalement à la résistance mécanique qui reste convenable. Pour parvenir à ce résultat, l'invention forme des trous 16 dont les configurations avantageuses sont données ci-après et qui sont au nombre de 3 au moins, les trous n'étant pas tous alignés.Surprisingly, it has been found that the formation of a plurality of holes 16 in the blocks 1, 2, 3, 4 does not fundamentally affect the mechanical strength which remains suitable. To achieve this result, the invention forms holes 16, the advantageous configurations of which are given below and which are at least 3 in number, the holes not all being aligned.

Dans le cas de la figure 1, chaque bloc 1, 2, 3, 4 comporte six trous 16, organisés en deux séries de trois trous ; préférentiellement ces séries sont dirigées suivant des lignes 17, 18 parallèles à la profondeur « p » du bloc 1, 2, 3, 4 rappelée en figure 3b. En figure 1, les trous 16 forment en outre trois colonnes suivant la hauteur des blocs donnée sous le repère « h » en figure 3b. Ce cas n'est pas limitatif et les trous peuvent être arrangés autrement qu'en colonnes, comme c'est le cas aux figures 5a et 5b.In the case of figure 1 , each block 1, 2, 3, 4 has six holes 16, organized in two series of three holes; preferably these series are directed along lines 17, 18 parallel to the depth "p" of the block 1, 2, 3, 4 recalled in figure 3b . In figure 1 , the holes 16 also form three columns according to the height of the blocks given under the reference "h" in figure 3b . This case is not limiting and the holes can be arranged other than in columns, as is the case with figures 5a and 5b .

Avantageusement, les trous 16 de chaque série sont également espacés entre eux et les trous 16 d'extrémité de chaque série sont à égale distance de leur bord respectif du bloc 1, 2, 3, 4.Advantageously, the holes 16 of each series are equally spaced from each other and the end holes 16 of each series are equidistant from their respective edges of the block 1, 2, 3, 4.

Pour préserver une résistance centrale plus élevée tout en allégeant efficacement le bloc, certains ou tous les trous 16 peuvent avoir une portion évasée, par exemple conique 19, au niveau de la face 7 sur lesquels ils débouchent. Ainsi, dans le cas des figures 2a et 2b, une portion 19 s'étend depuis une zone en profondeur du trou 16, vers l'embouchure du trou 16 au niveau de la face 7. Cette face 7 est une face de flanc du bloc 1, 2, 3, 4, c'est-à-dire s'étendant suivant la direction en profondeur et définitivement avec une quatrième face 12 opposée, la largeur « l » du bloc 1, 2, 3, 4. Après la portion 19, le trou 16 comporte une portion centrale 20 de section constante. La portion 19 peut avoir une profondeur inférieure à 25% de la longueur du bloc. Le trou 16 en question peut être borgne mais le mode de réalisation des figures 2a et 2b le montre débouchant sur la quatrième face 12. Préférentiellement, une portion évasée similaire à celle indiquée précédemment est formée sur le trou 16 vers son embouchure sur la quatrième face 12.To preserve a higher central resistance while effectively lightening the block, some or all of the holes 16 may have a flared portion, for example conical 19, at the level of the face 7 on which they open out. Thus, in the case of figures 2a and 2b , a portion 19 extends from a zone in depth of the hole 16, towards the mouth of the hole 16 at the level of the face 7. This face 7 is a side face of the block 1, 2, 3, 4, c ' that is to say extending in the direction in depth and definitively with a fourth face 12 opposite, the width "l" of the block 1, 2, 3, 4. After the portion 19, the hole 16 comprises a central portion 20 of constant section. The portion 19 may have a depth less than 25% of the length of the block. The hole 16 in question may be blind but the embodiment of the figures 2a and 2b the shows opening onto the fourth face 12. Preferably, a flared portion similar to that indicated above is formed on the hole 16 towards its mouth on the fourth face 12.

Les figures 3a et 3b qui n'appartiennent pas à l'invention, montrent une possibilité selon laquelle les trous 16 débouchant sur la troisième face 7 sont borgnes. Seuls certains des trous pourraient être borgnes, les autres étant débouchant. Dans ces figures, la profondeur des trous 16 borgnes est inférieure à la moitié de la largeur « l » du bloc 1, 2, 3, 4. En outre, des trous 16 additionnels sont formés à partir de la quatrième face 12 de façon ici symétrique. On maintient aussi avantageusement une zone médiane du bloc où les trous 16 sont absents.The figures 3a and 3b which do not belong to the invention, show a possibility according to which the holes 16 opening onto the third face 7 are blind. Only some of the holes could be blind, the others being through. In these figures, the depth of the blind holes 16 is less than half of the width "l" of the block 1, 2, 3, 4. Further, additional holes 16 are formed from the fourth face 12 so here symmetrical. A middle zone of the block is also advantageously maintained where the holes 16 are absent.

Suivant d'autres caractéristiques possibles, les figures 4a et 4b qui n'appartiennent pas à l'invention, montrent des trous 16 ayant des tailles différentes. D'une manière générale, mais non limitative, les trous 16 sont circulaires. Dans ce cadre, on a formé des figures 4a et 4b des trous de diamètres différents avec par exemple un doublement de diamètre pour au moins un trou 16.Depending on other possible characteristics, the figures 4a and 4b which do not belong to the invention, show holes 16 having different sizes. In general, but not limited to, the holes 16 are circular. In this context, we trained figures 4a and 4b holes of different diameters with for example a doubling of diameter for at least one hole 16.

Dans le mode de réalisation des figures 5a et 5b, qui n'appartiennent pas à l'invention, les trous 16 sont de même section mais sont organisés en deux rangées avec un décalage suivant la dimension en profondeur. Avantageusement, aucun des trous 16 n'est situé en vis-à-vis d'un autre trou 16 suivant la direction en hauteur.In the embodiment of figures 5a and 5b , which do not belong to the invention, the holes 16 are of the same section but are organized in two rows with an offset along the depth dimension. Advantageously, none of the holes 16 is located opposite another hole 16 in the direction in height.

Les figures 1 à 5b donnent des exemples de différents aspects possibles mais non limitatifs de blocs 1, 2, 3, 4. Ces aspects peuvent être mis en oeuvre en combinaison suivant toute association même s'ils ne sont pas illustrés ou décrits précédemment en association.The figures 1 to 5b give examples of various possible but non-limiting aspects of blocks 1, 2, 3, 4. These aspects can be implemented in combination according to any association even if they are not illustrated or described previously in association.

A titre d'exemple, et notamment dans le cas de la figure1, les trous 16 peuvent avoir un diamètre de 20 à 30 mm, préférentiellement à 25mm, pour des dimensions de blocs correspondant à l'exemple chiffré donné précédemment.By way of example, and in particular in the case of figure 1 , the holes 16 may have a diameter of 20 to 30 mm, preferably 25 mm, for block dimensions corresponding to the numbered example given above.

Dans le cas de la figure 6, un élément de construction a été fragmenté en deux parties comportant chacune deux blocs 1, 2 et 3, 4. Les deux paires de blocs sont superposées de sorte que le bloc 1 soit situé au-dessus du bloc 3 et le bloc 2 situé au-dessus du bloc 4. Grâce à cette configuration, on alterne des lignes à l'aspect de pierre éclatée issu des faces 9 obtenues à la dissociation du bloc 1, 2, 3, 4 et des lignes lisses correspondant au front 15 du bloc 1 ou 4, suivant la hauteur de l'ouvrage. La même méthode est reproduite pour superposer à nouveau des blocs 3, 4 et des blocs 1,2.In the case of figure 6 , a building element has been split into two parts each comprising two blocks 1, 2 and 3, 4. The two pairs of blocks are superimposed so that block 1 is located above block 3 and block 2 is located on the top. above the block 4. Thanks to this configuration, we alternate lines with the appearance of exploded stone from the faces 9 obtained at the dissociation of the block 1, 2, 3, 4 and smooth lines corresponding to the front 15 of the block 1 or 4, depending on the height of the structure. The same method is reproduced to again superimpose blocks 3, 4 and blocks 1,2.

La modularité de l'invention permet ainsi de monter des ouvrages tels que murets, des murs de soutènement, des murs anti-bruit ou autres. Dans certains cas, il est avantageux de renforcer la cohérence de l'ouvrage et du volume de terre qu'il soutient. A cet effet, l'élément peut comporter, sur au moins l'un des blocs 1, 2, 3, une encoche réalisée en creux sur l'une et/ou l'autre parmi la première face 5 et la deuxième face 6. Dans le cas des figures, l'encoche est une rainure parallèle aux languettes 10 sur la première face 5. La profondeur de l'encoche est par exemple comprise entre 10 et 30% de la hauteur « h » du bloc équipé. Ce dernier est préférentiellement l'un au moins des blocs d'extrémité de l'élément, parmi le bloc 1 et le bloc 4. L'encoche est avantageusement réalisée plus vers la face frontale du bloc 1, 4 d'extrémité que vers les languettes 10. Cela permet à l'encoche de coopérer avec une nappe de stabilisation notamment une grille du cône dénommée géogrille. Il s'agit ainsi d'une surface à mailles, de préférence en un matériau métallique ou polymères tels que polyester ou polypropylène rigide. Elle est avantageusement suffisamment rigide pour disposer au repos d'une forme plane. La grille est telle qu'elle comporte une bordure au moins partiellement rectiligne de sorte à autoriser une insertion dans l'encoche du bloc 1, 4 considéré. Cette bordure, repliée dans l'encoche, retient le reste de la grille qui s'applique optionnellement en outre sur la surface de la face 5 du bloc située entre l'encoche et la face frontale du bloc. La figure 6 montre une telle réalisation avec deux grilles. On notera que la superposition de deux blocs permet d'encastrer la grille dans un espace interstitiel, avec deux appuis générés par les blocs. La grille est ainsi retenue dans l'encoche et par les blocs. Sa bordure ne peut s'extraire de l'encoche. Pour éviter que l'épaisseur de la grille ne produise un défaut d'insertion des languettes dans les rainures, la portion de surface de la face équipée de l'encoche, située entre les moyens d'assemblage de la face frontale du bloc, est avantageusement suivant un plan en léger retrait relativement à un plan de base où se situe les moyens d'assemblage tels que les languettes. Ainsi, à ce niveau, la hauteur du bloc est un peu moindre, de préférence d'une valeur correspondant à l'épaisseur de la grille. Ce décalage en hauteur est, par exemple, visible aux figures 2b et 3b, et 4a et 5a.The modularity of the invention thus makes it possible to mount structures such as low walls, retaining walls, anti-noise walls or others. In some cases, it is advantageous to strengthen the consistency of the structure and the volume of soil it supports. To this end, the element may comprise, on at least one of the blocks 1, 2, 3, a notch produced in a hollow on one and / or the other of the first face 5 and the second face 6. In the case of the figures, the notch is a groove parallel to the tongues 10 on the first face 5. The depth of the notch is for example between 10 and 30% of the height “h” of the equipped block. The latter is preferably at least one of the end blocks of the element, from block 1 and block 4. The notch is advantageously made more towards the front face of the end block 1, 4 than towards the ends. tabs 10. This allows the notch to cooperate with a stabilization sheet, in particular a grid of the cone called a geogrid. It is thus a mesh surface, preferably made of a metallic material or polymers such as polyester or rigid polypropylene. It is advantageously sufficiently rigid to have a planar shape at rest. The grid is such that it has an at least partially rectilinear border so as to allow insertion into the notch of the block 1, 4 considered. This border, folded into the notch, retains the rest of the grid which optionally also applies to the surface of the face 5 of the block located between the notch and the front face of the block. The figure 6 shows such an embodiment with two grids. It will be noted that the superposition of two blocks makes it possible to embed the grid in an interstitial space, with two supports generated by the blocks. The grid is thus retained in the notch and by the blocks. Its border cannot come out of the notch. To prevent the thickness of the grid from producing a fault in inserting the tongues into the grooves, the surface portion of the face equipped with the notch, located between the assembly means of the front face of the block, is advantageously along a plane slightly set back relative to a base plane where the assembly means such as the tabs are located. Thus, at this level, the height of the block is a little less, preferably by a value corresponding to the thickness of the grid. This height shift is, for example, visible to figures 2b and 3b , and 4a and 5a .

L'invention n'est pas limitée aux modes de réalisation précédemment décrits mais s'étend à tous modes de réalisation conformes aux revendications suivantes.The invention is not limited to the embodiments described above but extends to all embodiments in accordance with the following claims.

REFERENCESREFERENCES

1.1.
BlocBlock
2.2.
BlocBlock
3.3.
BlocBlock
4.4.
BlocBlock
5.5.
Première faceFirst side
6.6.
Deuxième faceSecond side
7.7.
Troisième faceThird side
8.8.
Face avantFront face
9.9.
Face après dissociationFace after dissociation
10.10.
LanguetteTongue
11.11.
RainureGroove
12.12.
Quatrième faceFourth side
14.14.
Zone de ruptureBreak zone
15.15.
FrontForehead
16.16.
TrouHole
17.17.
Première ligneFirst line
18.18.
Deuxième ligneSecond row
19.19.
Portion coniqueConical portion
20.20.
Portion centraleCentral portion
21.21.
FondBackground
h.h.
Hauteur d'un blocHeight of a block
p.p.
Profondeur d'un blocDepth of a block

Claims (14)

  1. Concrete construction element including at least two blocks (1, 2, 3, 4), said blocks (1, 2, 3, 4) being configured according to a depth dimension of the blocks (1, 2, 3, 4) and being rigidly connected to one another but separable at the breakable linking areas, at least one of the construction blocks (1, 2, 3, 4) is to engage with at least one other construction block, in a stacked fashion, each of the construction blocks (1, 2, 3, 4) comprising, on a first surface (5), male assembly means and, on a second surface (6) opposite the first surface (5), female assembly means complementary to the male assembly means, wherein each block (1, 2, 3, 4) includes at least three holes (16) formed from a third surface (7) of the block (1, 2, 3, 4), the third surface (7) being parallel to the depth dimension and perpendicular to the first and second surfaces (5, 6), the at least three holes (16) not all being aligned, and wherein at least one of the holes (16) includes on the one hand a flared portion (19) from its mouth on the third surface (7), with a decreasing section towards the inside of the block and on the other hand a central portion (20) with a constant section, and followed by a flared portion with an increasing section to a mouth on the fourth surface (12).
  2. Element according to the preceding claim wherein the flared portion is a conical portion (19).
  3. Element according to one of the preceding claims wherein at least one of the holes (16) opens onto a fourth surface (12) of the block (1, 2, 3, 4), said fourth surface (12) being opposite the third surface (7).
  4. Element according to one of the preceding claims wherein at least two holes (16) have sections of different sizes.
  5. Element according to one of the preceding claims including two series of holes (16) aligned according to two lines (17, 18).
  6. Element according to the preceding claim, wherein each series of holes (16) includes three holes.
  7. Element according to the preceding claim wherein each of the three holes (16) of a series is aligned, along a height dimension of the block, with one of the three holes (16) of the other series.
  8. Element according to claim 6 wherein the holes (16) of one of the series are offset from the holes (16) of the other series according to the depth dimension.
  9. Element according to one of the preceding claims wherein the surface of the mouth of the holes (16) on the third surface (7) is less than 20% of the surface of the third surface (7).
  10. Element according to one of the preceding claims wherein at least one of the holes (16) is blind.
  11. Element according to the preceding claim, wherein the depth of the at least one blind hole is comprised between 20 and 45% of the width of the block (1, 2, 3, 4).
  12. Element according to one of the two preceding claims including at least three additional holes (16) formed from a fourth surface (12) of the block (1, 2, 3, 4) opposite the third surface (7), the at least three holes (16) not all being aligned.
  13. Element according to the preceding claim wherein the additional holes (16) are symmetrical with the holes (16) opening onto the third surface (7) relative to a median plane of the block (1, 2, 3, 4) according to the depth dimension.
  14. Wall composition assembly including in a stacked fashion a plurality of blocks (1, 2, 3, 4) of a plurality of elements according to one of the preceding claims.
EP15702678.2A 2014-02-04 2015-01-21 Construction element with at least two blocks Active EP3102751B1 (en)

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FR1450861A FR3017142B1 (en) 2014-02-04 2014-02-04 CONSTRUCTION ELEMENT COMPRISING AT LEAST TWO BLOCKS
PCT/EP2015/051167 WO2015117827A1 (en) 2014-02-04 2015-01-21 Construction element comprising at least two blocks

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FR3078351B1 (en) 2018-02-27 2022-03-04 Dominique Rossi CONSTRUCTION ELEMENT
FR3096379B1 (en) 2019-05-21 2022-12-02 Dominique Rossi building element

Citations (1)

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DE19903287A1 (en) * 1998-02-11 1999-08-19 Degen Profiled hollow brick

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CH154737A (en) * 1930-11-13 1932-05-31 Bucher Johann Building block.
SE7506814L (en) * 1974-06-20 1975-12-22 Helmut Blank WALL CONSTRUCTION.
DE2639036A1 (en) * 1976-08-30 1978-03-09 Trasswerk Meurin Betriebs Gmbh Hollow chambered light concrete masonry block - has circular sectioned hollow spaces at suitable mutual and edge intervals
DE202011110256U1 (en) * 2010-07-20 2013-04-02 Björn Winkler Building block, in particular for the construction of buildings
FR2977904B1 (en) * 2011-07-13 2015-01-02 Dominique Rossi BUILDING BLOCK

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19903287A1 (en) * 1998-02-11 1999-08-19 Degen Profiled hollow brick

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