EP1153179B1 - Reinforcing mesh and its use for a cement mortar and/or concrete element, a cement mortar and/or concrete element and a method for the production of such an element - Google Patents

Reinforcing mesh and its use for a cement mortar and/or concrete element, a cement mortar and/or concrete element and a method for the production of such an element Download PDF

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Publication number
EP1153179B1
EP1153179B1 EP00966341A EP00966341A EP1153179B1 EP 1153179 B1 EP1153179 B1 EP 1153179B1 EP 00966341 A EP00966341 A EP 00966341A EP 00966341 A EP00966341 A EP 00966341A EP 1153179 B1 EP1153179 B1 EP 1153179B1
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Prior art keywords
fabric layers
layers
concrete
component
fabric
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EP00966341A
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German (de)
French (fr)
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EP1153179A1 (en
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Stephan Hauser
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Hauser Manfred
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Hauser Manfred
MEINERT Klaus
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0006—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects the reinforcement consisting of aligned, non-metal reinforcing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0081—Embedding aggregates to obtain particular properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Definitions

  • the invention relates to a reinforcing mat with at least two layers of im Spaced from each other, fabric layers formed by tissue strands with different mesh sizes to form components by infiltration of cement mortar and / or concrete and Betonzutschskömem different Size, wherein the fabric layers are designed and arranged such that There is a change in the mesh size over the reinforcement mat thickness.
  • the invention further relates to manufactured from such reinforcing mats Components and a method for producing such components and use such a reinforcement mat for the purposes mentioned.
  • fabric layer includes planar structures that z. B. from in longitudinal and Transversely extending, welded together tissue strands or consist of braided or woven metal or Kunsstoffgebuchen.
  • a cement mortar and / or concrete component according to WO-A-99/42678 a reinforcement with a plurality of spaced fabric layers, wherein at least one average fabric layer has a larger mesh size as the outer fabric layers.
  • the object of the invention is the rigidity of a cement mortar component and / or concrete to optimize.
  • the reinforcement mat of the above-described Art characterized in that by the arrangement and design of the fabric layers in the cement mortar or concrete infiltration a sieve effect causes is such that the aggregate granules are arranged according to their size over the component thickness can be fixed substantially in predetermined positions.
  • a component of cement mortar and / or concrete containing a reinforcing mat spaced at least two layers apart arranged fabric layers formed by fabric strands with different Mesh sizes and Betonkörpem different sizes, where the fabric layers are designed and arranged so that over the component thickness a
  • a mesh size characterized in that Design and arrangement of fabric layers in cement mortar or concrete infiltration a sieve effect is effected such that the aggregate grains after their Position ordered over the component thickness substantially in predetermined positions are fixed.
  • the component rigidity is increased by the large grains in the pressure zone and reduced in the tensile zone by small particle sizes.
  • the high rigidity in the pressure zone causes a load transfer and thus a better material utilization until reaching the elongation at break of the pressure-loaded material concrete.
  • the lower rigidity in the tension zone causes the concrete elongation to increase until the concrete tensile strength is exceeded, that is, the concrete remains un-torn longer at high tensile loads and the durability and tightness is improved.
  • the fine grain content in the tensile zone causes a denser concrete structure and an improvement in the composite properties with reinforcing steel.
  • the position assurance of aggregate grains both in the individual layer plane and over the entire Cross-section controlled By the position assurance in the individual levels and the even staggering across the cross-sectional height can match the component to the actual to be adapted to expected stresses, thereby over In addition, the usually large dispersion of the material behavior of concrete minimized becomes.
  • the reinforcement mat can between the individual fabric layers already before the concrete infiltration may be integrated additional displacement body whose size between the fabric layers on the mesh size of the individual fabric layers is set.
  • Due to the spatial effect of the aggregate grains caused by the screening effect and also the displacement body can be the rigidity of the component and thus the carrying capacity, the deformation behavior, the energy absorption and adjust the weight of the component.
  • the individual fabric layers can in the usual way of metal or plastic fabrics or welded or braided metal mesh or expanded metal consist.
  • the diameter of the fabric strands of the individual fabric layers is preferably 0.2 mm to 2.0 mm, from which the term "micro-tissue" derived leaves.
  • the inventive method for producing a component from cement mortar and / or concrete comprises the features of claim 18.
  • Figure 1 shows an exploded view of a plurality of fabric layers 2 existing reinforcing mat with a coarse mesh layer 2a, a a medium mesh fabric layer 2b and a fine mesh Fabric layer 2c.
  • the displacement body 1 may differ from the illustrated spherical shape arbitrarily different and according to the invention also designed as a hollow body be.
  • FIG. 3 shows the three-dimensional lacing by means of the individual Woven fabric layers connecting Verschnürungs instituten 3, 4 for Position securing and securing the shear resistance of the reinforcement mat with integrated displacement bodies 1.
  • the individual fabric layers are made of metal or plastic fabrics or of welded or braided metal mesh or of expanded metal, in a reinforcement mat and fabric layers of different structure summarized could be.
  • the diagram of Figure 4 shows schematically the strain distribution over the height of the bending-stressed component, namely the compressive strain 4d in Area of the pressure zone 4a, the tensile strain 4e in the region of the tensile zone 4c. Contrary to the theoretical principles are in practice at Bending stress the strains of the non-cracked and cracked Components 4b on the drawn component side always larger than the pressed Component side. The adaptation and optimization of the component to the realistic Expansion conditions is achieved by the stiffness regulation according to the invention due to location positioning of the aggregate grains.
  • Figure 5 shows again in cross section the fabric layer arrangement of the reinforcement mat with larger mesh sizes 5a at the top and lower Mesh sizes 5b in the lower area.
  • FIG. 5 shows the example of a thin, plate-like component Fabric layer arrangement of the reinforcing mat with larger mesh sizes 5a in upper area and smaller mesh sizes 5b in the lower area.
  • FIG. 6 shows the positional positioning of aggregate grains 1 as a result of Sieve effect of the reinforcement mat shown in Figure 5. This gives you a pressure zone 6a with a high component rigidity 6c and a tensile zone 6b with a lower component rigidity 6d.
  • Figure 7 shows the example of a high, beam-like component the Reinforcing mat with a large-mesh upper portion 7a
  • w 16 mm
  • a lower fabric layer portion 7c with small mesh size of for example w ⁇ 4mm.
  • FIG. 8 shows the positional positioning of the aggregate grains 1 with a corresponding grain size graduation as a result of the screening effect of the reinforcing mat shown in FIG.
  • E c > 50,000 N / mm 2 in the region 8a 30,000 ⁇ E c ⁇ 50,000 N / mm 2 in the range 8b

Abstract

This invention refers to the manufacturing of structural and impervious members by slurry-infiltration in a 3-dimensional mat system, which consists of single layers (2). The single layers are preferably meshes. The structural system is a composite material consisting of a 3-dimensional micro reinforcing and sieving mat system bonded in concrete. The aggregate (1) can be precisely positioned horizontally and vertically in the member by variation of the mesh width of the single layers (2). The sieving effect by the variation of the mesh width in vertical direction guarantees a positioning of aggregate by size. By this effect the load capacity, the stiffness and the crack propagation can be controlled and adjusted precisely.

Description

Die Erfindung betrifft eine Bewehrungsmatte mit mindestens zwei Lagen von im Abstand voneinander angeordneten, aus Gewebesträngen gebildeten Gewebelagen mit unterschiedlichen Maschenweiten zur Bildung von Bauteilen durch Infiltration von Zementmörtel und/oder Beton sowie von Betonzuschlagskömem unterschiedlicher Größe, wobei die Gewebelagen so gestaltet und angeordnet sind, dass über die Bewehrungsmattendicke eine Veränderung der Maschenweite vorliegt. Die Erfindung betrifft weiterhin aus derartigen Bewehrungsmatten hergestellte Bauteile sowie ein Verfahren zur Herstellung solcher Bauteile und die Verwendung einer derartigen Bewehrungsmatte für die genannten Zwecke. The invention relates to a reinforcing mat with at least two layers of im Spaced from each other, fabric layers formed by tissue strands with different mesh sizes to form components by infiltration of cement mortar and / or concrete and Betonzuschlagskömem different Size, wherein the fabric layers are designed and arranged such that There is a change in the mesh size over the reinforcement mat thickness. The invention further relates to manufactured from such reinforcing mats Components and a method for producing such components and use such a reinforcement mat for the purposes mentioned.

Der Begriff "Gewebelage" beinhaltet flächenhafte Gebilde, die z. B. aus in Längsund Querrichtung verlaufenden, miteinander verschweißten Gewebesträngen oder aus geflochtenen oder gewebten Metall- oder Kunsstoffgebilden bestehen.The term "fabric layer" includes planar structures that z. B. from in longitudinal and Transversely extending, welded together tissue strands or consist of braided or woven metal or Kunsstoffgebilden.

Ein Bauteil aus Zementmörtel und/oder Beton gemäß WO-A-99/42678 enthält eine Bewehrung mit mehreren im Abstand voneinander angeordnete Gewebelagen, wobei mindestens eine mittlere Gewebelage eine größere Maschenweite hat als die außenliegende Gewebelagen. Daraus resultiert nach der Betoninfiltraton, wie auch bei üblichen Betonkonstruktionen, hinsichtlich der Zuschlagskörner über die Bauteildicke ein im wesentlichen konstantes Kömungsband. Der Versuch, ein Bauteil mit einer Lagepositionierung der Zuschlagskörner in einzelnen Ebenen herzustellen, scheitert beim obligatorischen Verdichten des Betons. Durch die Rüttelenergie vermischen sich mehrlagig eingebrachte Betonmischungen über die Bauteildicke zu einem Beton mit konstantem Kömungsband. Dies führt zu einer zufälligen Verteilung der Korngrößen und somit zu einer starken Streuung im Materialverhalten des Betons. Bei einer Standardzusammensetzung mit gleichbleibendem bzw. konstantem Körnungsband ist die Steifigkeit des Betonteils über die Bauteildicke ebenfalls konstant, so daß bei einem Betonteil mit einer Standardkörnung bereits bei einer geringen Dehnung die zulässige Zugfestigkeit überschritten wird und der Beton reißt.A cement mortar and / or concrete component according to WO-A-99/42678 a reinforcement with a plurality of spaced fabric layers, wherein at least one average fabric layer has a larger mesh size as the outer fabric layers. This results after the concrete infiltration, as well as with conventional concrete constructions, regarding the aggregate grains over the component thickness is a substantially constant Kömungsband. The attempt, one Component with a positional positioning of aggregate grains in individual planes fails due to compulsory compacting of the concrete. By the Rüttelenergie mix in several layers introduced concrete mixtures on the Component thickness to a concrete with constant Kömungsband. This leads to a random distribution of grain sizes and thus to a strong dispersion in the Material behavior of the concrete. In a standard composition with constant or constant Körnungsband is the stiffness of the concrete part over The component thickness also constant, so that in a concrete part with a Standard grain size already at a low elongation the allowable tensile strength is exceeded and the concrete ruptures.

Aufgabe der Erfindung ist es, die Steifigkeit eines Bauteils aus Zementmörtel und/oder Beton zu optimieren.The object of the invention is the rigidity of a cement mortar component and / or concrete to optimize.

Zur Lösung dieser Aufgabe ist die Bewehrungmatte der eingangs beschriebenen Art, dadurch gekennzeichnet, daß durch die Anordnung und Gestaltung der Gewebelagen bei der Zementmörtel- oder Betoninfiltration ein Siebeffekt bewirktbar ist, derart, daß die Zuschlagskörner nach ihrer Größe ordnetbar über die Bauteildicke im wesentlichen in vorgegebenen Lagen fixierbar sind.To solve this problem, the reinforcement mat of the above-described Art, characterized in that by the arrangement and design of the fabric layers in the cement mortar or concrete infiltration a sieve effect causes is such that the aggregate granules are arranged according to their size over the component thickness can be fixed substantially in predetermined positions.

Dementsprechend ist ein Bauteil aus Zementmörtel und/oder Beton, enthaltend, eine Bewehrungsmatte aus mindestens in zwei Lagen von im Abstand voneinander angeordneten, aus Gewebesträngen gebildeten Gewebelagen mit unterschiedlichen Maschenweiten sowie Betonkörpem unterschiedlicher Größe, wobei die Gewebelagen so gestaltet und angeordnet sind, daß über die Bauteildicke eine Veränderung der Maschenweite vorliegt, dadurch gekennzeichnet, daß durch die Gestaltung und Anordnung der Gewebelagen bei der Zementmörtel- oder Betoninfiltration ein Siebeffekt bewirkbar ist derart, daß die Zuschlagskörner nach ihrer Lage geordnet über die Bauteildicke im wesentlichen in vorgegebenen Lagen fixiert sind. Accordingly, a component of cement mortar and / or concrete containing a reinforcing mat spaced at least two layers apart arranged fabric layers formed by fabric strands with different Mesh sizes and Betonkörpem different sizes, where the fabric layers are designed and arranged so that over the component thickness a There is a change in the mesh size, characterized in that Design and arrangement of fabric layers in cement mortar or concrete infiltration a sieve effect is effected such that the aggregate grains after their Position ordered over the component thickness substantially in predetermined positions are fixed.

Aufgrund des erfindungsgemäß auftretenden Siebeffektes wird die Bauteilsteifigkeit durch die großen Körner in der Druckzone erhöht und in der Zugzone durch kleine Korngrößen reduziert. Bei einem Beton gleicher Festigkeit, zum Beispiel einem hochfesten Beton B 100, erstreckt sich die Betonsteifigkeit von E = 20.000 N/mm2 (Größtkorn = 2 mm) bis E = 50.000 N/mm2 (Größtkorn = 32 mm). Die hohe Steifigkeit in der Druckzone bewirkt eine Lastumlagerung und somit eine bessere Materialausnutzung bis zum Erreichen der Bruchdehnung des auf Druck beanspruchten Werkstoffes Beton. Die geringere Steifigkeit in der Zugzone bewirkt eine Vergrößerung der Betondehnung bis die Betonzugfestigkeit überschritten wird, das heißt, der Beton bleibt bei hohen Zugbelastungen länger ungerissen und die Dauerhaftigkeit und Dichtheit wird verbessert. Zudem bewirkt der Feinkornanteil in der Zugzone ein dichteres Betongefüge und eine Verbesserung der Verbundeigenschaften mit Betonstahl.Due to the screening effect occurring according to the invention, the component rigidity is increased by the large grains in the pressure zone and reduced in the tensile zone by small particle sizes. For a concrete of equal strength, for example a high-strength concrete B 100, the concrete stiffness ranges from E = 20,000 N / mm 2 (largest grain = 2 mm) to E = 50,000 N / mm 2 (largest grain = 32 mm). The high rigidity in the pressure zone causes a load transfer and thus a better material utilization until reaching the elongation at break of the pressure-loaded material concrete. The lower rigidity in the tension zone causes the concrete elongation to increase until the concrete tensile strength is exceeded, that is, the concrete remains un-torn longer at high tensile loads and the durability and tightness is improved. In addition, the fine grain content in the tensile zone causes a denser concrete structure and an improvement in the composite properties with reinforcing steel.

Durch die erfindungsgemäße Bewehrungsmatte wird die Lagesicherung der Zuschlagkörner sowohl in der einzelnen Schichtebene als auch über den gesamten Querschnitt gesteuert. Durch die Lagesicherung in den einzelnen Ebenen und die gleichmäßige Staffelung über die Querschnittshöhe kann das Bauteil an die tatsächliche zu erwartenden Beanspruchungen angepaßt werden, wodurch darüber hinaus die üblicherweise große Streuung des Materialverhaltens von Beton minimiert wird.By the reinforcement mat according to the invention, the position assurance of aggregate grains both in the individual layer plane and over the entire Cross-section controlled. By the position assurance in the individual levels and the even staggering across the cross-sectional height can match the component to the actual to be adapted to expected stresses, thereby over In addition, the usually large dispersion of the material behavior of concrete minimized becomes.

In die Bewehrungsmatte können zwischen den einzelnen Gewebelagen bereits vor der Betoninfiltration zusätzliche Verdrängungskörper integriert sein, deren Größe zwischen den Gewebelagen auf die Maschenweite der einzelnen Gewebelagen eingestellt ist.In the reinforcement mat can between the individual fabric layers already before the concrete infiltration may be integrated additional displacement body whose size between the fabric layers on the mesh size of the individual fabric layers is set.

Durch die infolge des Siebeffektes bewirkte räumliche Verteilung der Zuschlagskörner und auch der Verdrängungskörper läßt sich die Steifigkeit des Bauteils und damit die Tragfähigkeit, das Verformungsverhalten, die Energieabsorption und das Gewicht des Bauteils anpassen.Due to the spatial effect of the aggregate grains caused by the screening effect and also the displacement body can be the rigidity of the component and thus the carrying capacity, the deformation behavior, the energy absorption and adjust the weight of the component.

Die einzelnen Gewebelagen können in üblicher Weise aus Metall- oder Kunststoffgeweben oder geschweißten oder geflochtenen Metallgittern oder Streckmetall bestehen.The individual fabric layers can in the usual way of metal or plastic fabrics or welded or braided metal mesh or expanded metal consist.

Der Durchmesser der Gewebestränge der einzelnen Gewebelagen beträgt vorzugsweise 0,2 mm bis 2,0 mm, woraus sich der Begriff "Mikrogewebe" ableiten läßt. The diameter of the fabric strands of the individual fabric layers is preferably 0.2 mm to 2.0 mm, from which the term "micro-tissue" derived leaves.

Das erfindungsgemäße Verfahren zur Herstellung eines Bauteils aus Zementmörtel und/oder Beton umfaßt die Merkmale des Anspruchs 18.The inventive method for producing a component from cement mortar and / or concrete comprises the features of claim 18.

Die Erfindung wird im folgenden anhand der Zeichnung näher beschrieben:

Figur 1
zeigt in perspektivischer, auseinandergezogener Darstellung ausschnittsweise eine aus mehreren Gewebelagen bestehende Bewehrungsmatte;
Figur 2
zeigt eine Bewehrungsmatte entsprechend Figur 1 mit zwischen die Gewebelagen eingelagerten Verdrängungskörpern unterschiedlicher Größe;
Figur 3
zeigt ausschnittsweise in schematischer Darstellung einen Querschnitt einer Bewehrungsmatte mit eingelagerten Verdrängungskörpem;
Figur 4
ist ein Diagramm der Dehnungsverhältnisse eines biegebeanspruchten Bauteils, teilweise als Schnittdarstellung;
Figur 5
zeigt ausschnittsweise in schematisierter Darstellung eine Schnittansicht einer Bewehrungsmatte für ein plattenförmiges Bauteil;
Figur 6
zeigt schematisch die Anordnung der Zuschlagskömer eines plattenartigen Bauteils, wobei die in das Bauteil integrierte Bewehrungsmatte gemäß Figur 5 nicht dargestellt ist;
Figur 7
zeigt in ausschnittsweiser Schnittdarstellung ein Beispiel einer Bewehrungsmatte für ein balkenartiges Bauteil
Figur 8
zeigt schematisch die Anordnung der Zuschlagskömer eines balkenartigen Bauteils, wobie die in das Bauteil integrierte Bewehrungsmatte gemäß Figur 7 nicht dargestellt ist.
The invention is described in more detail below with reference to the drawing:
FIG. 1
shows in perspective, exploded view fragmentary one consisting of several layers of fabric reinforcement mat;
FIG. 2
shows a reinforcing mat according to Figure 1 with interposed between the tissue layers displacement bodies of different sizes;
FIG. 3
shows a fragmentary schematic representation of a cross section of a reinforcing mat with embedded displacement bodies;
FIG. 4
is a diagram of the expansion ratios of a bending-stressed component, partly as a sectional view;
FIG. 5
shows a fragmentary schematic representation of a sectional view of a reinforcing mat for a plate-shaped component;
FIG. 6
shows schematically the arrangement of Zuschlagskömer a plate-like member, wherein the integrated in the component reinforcing mat according to Figure 5 is not shown;
FIG. 7
shows a sectional view of an example of a reinforcement mat for a beam-like component
FIG. 8
schematically shows the arrangement of Zuschlagskömer a beam-like component, wherein the integrated in the component reinforcement mat according to Figure 7 is not shown.

Figur 1 zeigt in auseinandergezogener Darstellung eine aus mehreren Gewebelagen 2 bestehenden Bewehrungsmatte mit einer grobmaschigen Gewebelage 2a, einer eine mittlere Maschenweite aufweisenden Gewebelage 2b und einer feinmaschigen Gewebelage 2c. Figure 1 shows an exploded view of a plurality of fabric layers 2 existing reinforcing mat with a coarse mesh layer 2a, a a medium mesh fabric layer 2b and a fine mesh Fabric layer 2c.

Gemäß Figur 2 sind zwischen die einzelnen Gewebelagen Verdrängungskörper 1 als integrierende Bestandteile der Bewehrungsmatte vor der Betoninfiltration eingelagert. Die Verdrängungskörper 1 können abweichend von der dargestellten Kugelform beliebig anders und erfindungsgemäß auch als Hohlkörper ausgestaltet sein.According to Figure 2 are between the individual layers of tissue displacement body. 1 incorporated as integral components of the reinforcement mat before the concrete infiltration. The displacement body 1 may differ from the illustrated spherical shape arbitrarily different and according to the invention also designed as a hollow body be.

Figur 3 zeigt die dreidimensionale Verschnürung mittels die einzelnen Gewebelagenebenen verbindenden Verschnürungselementen 3, 4 zur Lagesicherung und Sicherung der Schubtragfähigkeit der Bewehrungsmatte mit integrierten Verdrängungskörpern 1. Die Höhe h der Gewebematte ist in Abhängigkeit von den später an das fertige Bauteil gestellte Anforderungen beliebig einstellbar, vorzugsweise h = 10 -100 mm.FIG. 3 shows the three-dimensional lacing by means of the individual Woven fabric layers connecting Verschnürungselementen 3, 4 for Position securing and securing the shear resistance of the reinforcement mat with integrated displacement bodies 1. The height h of the fabric mat is in Dependence on the requirements later made on the finished component arbitrarily adjustable, preferably h = 10 -100 mm.

Die einzelnen Gewebelagen bestehen aus Metall- oder Kunststoffgeweben oder aus geschweißten oder geflochtenen Metallgittern oder aus Streckmetall, wobei in einer Bewehrungsmatte auch Gewebelagen unterschiedlicher Struktur zusammengefaßt sein können.The individual fabric layers are made of metal or plastic fabrics or of welded or braided metal mesh or of expanded metal, in a reinforcement mat and fabric layers of different structure summarized could be.

Das Diagramm gemäß Figur 4 zeigt schematisiert die Dehnungsverteilung über die Höhe des biegebeanspruchten Bauteiles, nämlich die Druckdehnung 4d im Bereich der Druckzone 4a, die Zugdehnung 4e im Bereich der Zugzone 4c. Entgegen der theoretischen Grundlagen sind in der Praxis bei Biegebeanspruchung die Dehnungen von ungerissenen und auch von gerissenen Bauteilen 4b an der gezogenen Bauteilseite stets größer als an der gedrückten Bauteilseite. Die Anpassung und Optimierung des Bauteils an die realistischen Dehnungsverhältnisse erfolgt durch die erfindungsgemäße Steifigkeitsregulierung infolge Lagepositionierung der Zuschlagskörner.The diagram of Figure 4 shows schematically the strain distribution over the height of the bending-stressed component, namely the compressive strain 4d in Area of the pressure zone 4a, the tensile strain 4e in the region of the tensile zone 4c. Contrary to the theoretical principles are in practice at Bending stress the strains of the non-cracked and cracked Components 4b on the drawn component side always larger than the pressed Component side. The adaptation and optimization of the component to the realistic Expansion conditions is achieved by the stiffness regulation according to the invention due to location positioning of the aggregate grains.

Figur 5 zeigt nochmals im Querschnitt die Gewebelagenanordnung der Bewehrungsmatte mit größeren Maschenweiten 5a im oberen Bereich und geringeren Maschenweiten 5b im unteren Bereich. Figure 5 shows again in cross section the fabric layer arrangement of the reinforcement mat with larger mesh sizes 5a at the top and lower Mesh sizes 5b in the lower area.

Figur 5 zeigt am Beispiel eines dünnen, plattenartigen Bauteils die Gewebelagenanordnung der Bewehrungsmatte mit größeren Maschenweiten 5a im oberen Bereich und geringeren Maschenweiten 5b im unteren Bereich.FIG. 5 shows the example of a thin, plate-like component Fabric layer arrangement of the reinforcing mat with larger mesh sizes 5a in upper area and smaller mesh sizes 5b in the lower area.

Figur 6 zeigt die Lagepositionierung der Zuschlagkörner 1 infolge des Siebeffektes der in Figur 5 dargestellten Bewehrungsmatte. Daraus erhält man eine Druckzone 6a mit einer hohen Bauteilsteifigkeit 6c sowie eine Zugzone 6b mit einer geringeren Bauteilsteifigkeit 6d.FIG. 6 shows the positional positioning of aggregate grains 1 as a result of Sieve effect of the reinforcement mat shown in Figure 5. This gives you a pressure zone 6a with a high component rigidity 6c and a tensile zone 6b with a lower component rigidity 6d.

Figur 7 zeigt am Beispiel eines hohen, balkenartigen Bauteiles die Bewehrungsmatte mit einem oberen Abschnitt 7a mit großer Maschenweite von zum Beispiel w = 16 mm, einem mittleren Abschnitt 7b mit einer Maschenweite von zum Beispiel w = 8 mm und einem unteren Gewebelagenabschnitt 7c mit geringer Maschenweite von zum Beispiel w<4mm.Figure 7 shows the example of a high, beam-like component the Reinforcing mat with a large-mesh upper portion 7a For example, w = 16 mm, a middle section 7b with a mesh size of, for example, w = 8 mm and a lower fabric layer portion 7c with small mesh size of for example w <4mm.

Figur 8 zeigt die Lagepositionierung der Zuschlagskörner 1 mit einer entsprechenden Korngrößenstaffelung infolge des Siebeffektes der in Figur 7 dargestellten Bewehrungsmatte. Daraus erhält man im oberen Bauteilbereich eine hohe Betonsteifigkeit 8a, im mittleren Bauteilbereich eine mittlere Betonsteifigkeit 8b und im unteren Bauteilbereich eine geringere Betonsteifigkeit 8c mit Werten von zum Beispiel
   Ec >50.000 N/mm2 im Bereich 8a.
   30.000 < Ec < 50.000 N/mm2 im Bereich 8b
   Ec ≤ 30.000 N/mm2 im Bereich 8c.FIG. 8 shows the positional positioning of the aggregate grains 1 with a corresponding grain size graduation as a result of the screening effect of the reinforcing mat shown in FIG. This results in a high concrete rigidity 8a in the upper component area, a medium concrete rigidity 8b in the middle component area and a lower concrete rigidity 8c in the lower component area with values of, for example
E c > 50,000 N / mm 2 in the region 8a.
30,000 <E c <50,000 N / mm 2 in the range 8b
E c ≤ 30,000 N / mm 2 in the range 8c.

Claims (20)

  1. Reinforcement mat with at least two layers of fabric layers (2) with different mesh sizes, created from fabric ropes and disposed at a distance from each other, to create components through the infiltration of cement mortar and/or concrete and also concrete aggregate particles of different sizes, the fabric layers (2) being designed and disposed so that a change in the mesh size of the fabric layers (2) occurs over the thickness of the reinforcement mat, characterised in that through the arrangement and design of the fabric layers (2), a sieve effect can be brought about with the cement mortar or concrete infiltration so that the aggregate particles, which can be disposed over the thickness of the reinforcement mat according to their size, can be essentially fixed in predetermined layers.
  2. Reinforcement mat according to claim 1, characterised in that penetration bodies (1') which, apart from controlling the rigidity corresponding to their size, also act as spacers, are positioned exactly and specifically between neighbouring layers of fabric layers (2).
  3. Reinforcement mat according to claim 1 or 2, characterised in that the fabric layer (2) consists of metal or plastic fabrics.
  4. Reinforcement mat according to claim 1 or 2, characterised in that the individual fabric layers (2) consist of welded or woven metal grids or expanded metal.
  5. Reinforcement mat according to claim 1, characterised in that the mesh or hole size of the individual fabric layer (2) varies between 3 mm and 50 mm.
  6. Reinforcement mat according to claim 4, characterised in that it has three fabric layers (2), of which a bottom layer has a mesh or hole size of < 4 mm, a middle layer, a mesh or hole size of 8 mm and the top layer, a mesh or hole size of 16 mm.
  7. Reinforcement mat according to claim 4, characterised in that the weight of the component with a pre-determined volume can be controlled by choosing the size and bulk density of the penetration bodies (1) positioned between the individual fabric layers (2),
  8. Reinforcement mat according to claim 1, characterised in that the diameter of the fabric ropes of the fabric layers (2) is 0.2 mm to 2.0 mm.
  9. Reinforcement mat according to claim 1, characterised in that the individual fabric layers (2) are tied to each other.
  10. Component of cement mortar and/or concrete, containing a reinforcement mat consisting of at least two layers of fabric layers (2) with different mesh sizes created from fabric ropes and disposed at a distance from each other and also concrete aggregate particles (1) of different sizes, the fabric layers (2) being designed and disposed in such a way that a change in mesh size occurs over the thickness of the component, characterised in that through the design and arrangement of the fabric layers (2), a sieve effect can be brought about with the cement mortar or concrete infiltration so that the aggregate particles, arranged over the component thickness according to their size, are essentially fixed in pre-determined layers.
  11. Component according to claim 10, characterised in that it contains additional penetration bodies (1') between neighbouring fabric layers (2).
  12. Component according to claim 10 or 11, characterised in that the fabric layers (2) consist of metal or plastic fabrics.
  13. Component according to claim 11 or 12, characterised in that the individual fabric layers (2) consist of welded or woven metal grids or expanded metal.
  14. Component according to claim 10 or 11, characterised in that the mesh size of the fabric layers (2) varies between 3 mm and 50 mm.
  15. Component according to one of claims 10 - 14, characterised in that the reinforcement mat has at least three fabric layers (2), of which a bottom layer has a mesh size of < 4 mm, a middle layer, a mesh size of 8 mm and the top layer, a mesh size of 16 mm.
  16. Component according to one of claims 11 - 15, characterised in that the weight of the component with pre-determined volume can be controlled exactly by choosing the size and raw density of the penetration bodies (1') positioned between the individual reinforcement mat layers.
  17. Component according to claim 12, characterised in that the diameter of the fabric ropes of the individual layers (2) is 0.2 mm to 2.0 mm.
  18. Method for making a component from cement mortar and/or concrete with at least two layers of fabric layers (2) with different mesh sizes embedded in the component at a distance from each other, the fabric layers (2) being disposed one above the other and with their spatial allocation fixed in relation to each other and these fabric layers then being encapsulated in cement mortar and/or concrete mixture mixed with concrete aggregate particles of different sizes, characterised in that the individual fabric layers are disposed one above the other so that the mesh size of the individual fabric layers has increasing values in one direction so that through the sieve effect of the fabric layers, the concrete aggregate particles (1), essentially arranged over the component thickness according to their size, are positioned exactly in predetermined layers.
  19. Method according to claim 18, characterised in that penetration bodies (1') of a defined size and/or defined density, are disposed between the individual fabric layers (2) before the cement mortar and/or concrete mixture is poured.
  20. Use of a reinforcement mat according to one of claims 1 to 8 as a reinforcement insert of components of cement mortar and/or concrete mixed with aggregate particles of different sizes.
EP00966341A 1999-09-27 2000-09-27 Reinforcing mesh and its use for a cement mortar and/or concrete element, a cement mortar and/or concrete element and a method for the production of such an element Expired - Lifetime EP1153179B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH178899 1999-09-27
CH01788/99A CH692157A9 (en) 1999-09-27 1999-09-27 Spatially set Matt arrangement for graduation, position fixing and varying the surcharge grain of cementitious components.
PCT/IB2000/001369 WO2001023685A1 (en) 1999-09-27 2000-09-27 Mesh used as a spatial micro-reinforcement for graduation, positioning and variation of additional graining of cement-bound components

Publications (2)

Publication Number Publication Date
EP1153179A1 EP1153179A1 (en) 2001-11-14
EP1153179B1 true EP1153179B1 (en) 2005-11-23

Family

ID=4218622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00966341A Expired - Lifetime EP1153179B1 (en) 1999-09-27 2000-09-27 Reinforcing mesh and its use for a cement mortar and/or concrete element, a cement mortar and/or concrete element and a method for the production of such an element

Country Status (10)

Country Link
US (1) US6868645B2 (en)
EP (1) EP1153179B1 (en)
AT (1) ATE310862T1 (en)
AU (1) AU7677900A (en)
CH (1) CH692157A9 (en)
DE (1) DE50006748D1 (en)
DK (1) DK1153179T3 (en)
ES (1) ES2253258T3 (en)
PT (1) PT1153179E (en)
WO (1) WO2001023685A1 (en)

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WO2008003276A2 (en) * 2006-07-07 2008-01-10 Ducostone Gmbh Plate-shaped structural component
DE202007005497U1 (en) 2007-04-13 2008-08-14 Ducostone Gmbh Plate-shaped component
DE202007005496U1 (en) 2006-07-07 2008-08-21 Ducostone Gmbh Plate-shaped component
DE102012009284A1 (en) * 2012-05-11 2013-11-14 Goldschmidt Thermit Railservice Gmbh Method for remediating a solid ballast track constructed in e.g. railway station, involves forming filling openings along long side of threshold region before filling the filling material into cavity
DE202014104905U1 (en) 2014-10-15 2014-10-30 Johann Dirscherl screw foundation

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DE10348508A1 (en) * 2003-10-18 2005-06-09 Hauser, Stephan, Dr.-Ing. Mobile ammunition container
GB2408015A (en) * 2003-11-14 2005-05-18 Intelligent Engineering Structural sandwich plate members with forms
US7529418B2 (en) * 2004-05-20 2009-05-05 Hewlett-Packard Development Company, L.P. Geometry and view assisted transmission of graphics image streams
US20080118309A1 (en) * 2006-11-21 2008-05-22 Jan Erik Jansson Flexible grid and predominantly concrete mat employing same
DE202007014526U1 (en) 2007-10-17 2009-03-05 Ducon Gmbh Component, in particular plate-shaped component made of concrete and concrete aggregate material
WO2009049571A1 (en) * 2007-10-17 2009-04-23 Ducon Gmbh Structural element, particularly plate-shaped structural element made of concrete and concrete aggregate material
US7926407B1 (en) * 2007-11-16 2011-04-19 Gerald Hallissy Armor shielding
DE202008009564U1 (en) 2008-07-16 2009-12-03 Hauser, Stephan, Dr.-Ing. Concrete element and concrete aggregate
EP2236686A1 (en) * 2009-04-03 2010-10-06 F.J. Aschwanden AG Reinforcing element for absorbing forces in concrete slabs in the area of supporting elements
WO2010132900A1 (en) * 2009-05-15 2010-11-18 Duc Thang Do Steel reinforcement structure of bubbledeck slab elements and procedure of manufacturing bubbledeck slab elements
CN102108715B (en) * 2011-01-26 2012-09-26 河海大学 Orthogonal grid numerical reinforcement method for cylindrically structured buildings
GB201117162D0 (en) * 2011-10-05 2011-11-16 Univ Ulster Concrete panels
EP2666922B2 (en) 2012-05-23 2019-02-27 Groz-Beckert KG Textile-reinforced concrete element
DE102014000316B4 (en) * 2014-01-13 2016-04-07 Goldbeck Gmbh Composite component of precast concrete precast elements supported on steel girders
DE102014108761A1 (en) 2014-06-23 2015-12-24 Jörg Rathenow Process for refining materials
JP7352367B2 (en) * 2019-03-29 2023-09-28 ニチハ株式会社 Building material manufacturing equipment and building material manufacturing method

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GB8322645D0 (en) * 1983-08-23 1983-09-28 Lambeg Ind Research Assn Textile reinforced cement structure
GB2196660B (en) 1986-10-29 1991-06-26 Shimizu Construction Co Ltd Wire mesh truss used as building wall element
GB8900565D0 (en) * 1989-01-11 1989-03-08 Kubik Marian L Space frame
US5251414A (en) * 1992-03-16 1993-10-12 Duke Darryl A Energy absorbing composite and reinforcing core
DE19808078A1 (en) * 1998-02-21 1999-09-16 Holzmann Philipp Ag Mat consisting preferably of metal parts to form load-bearing and sealing concrete parts
DE19903304A1 (en) * 1999-01-28 2000-08-03 Hauser Manfred Micro-fabric mat, for production of slurry infiltrated mat concrete components, comprises micro-fabric layers spaced apart by displacement bodies precisely positioned by fabric mesh width selection

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003276A2 (en) * 2006-07-07 2008-01-10 Ducostone Gmbh Plate-shaped structural component
WO2008003276A3 (en) * 2006-07-07 2008-02-28 Ducostone Gmbh Plate-shaped structural component
DE202007005496U1 (en) 2006-07-07 2008-08-21 Ducostone Gmbh Plate-shaped component
DE202007005497U1 (en) 2007-04-13 2008-08-14 Ducostone Gmbh Plate-shaped component
DE102012009284A1 (en) * 2012-05-11 2013-11-14 Goldschmidt Thermit Railservice Gmbh Method for remediating a solid ballast track constructed in e.g. railway station, involves forming filling openings along long side of threshold region before filling the filling material into cavity
DE102012009284B4 (en) * 2012-05-11 2015-01-22 Goldschmidt Thermit Railservice Gmbh Process for the rehabilitation of a solid road / solidified gravel railway
DE202014104905U1 (en) 2014-10-15 2014-10-30 Johann Dirscherl screw foundation

Also Published As

Publication number Publication date
US6868645B2 (en) 2005-03-22
CH692157A5 (en) 2002-02-28
ES2253258T3 (en) 2006-06-01
AU7677900A (en) 2001-04-30
US20020062619A1 (en) 2002-05-30
WO2001023685A1 (en) 2001-04-05
DK1153179T3 (en) 2006-04-10
CH692157A9 (en) 2002-06-28
DE50006748D1 (en) 2004-07-15
EP1153179A1 (en) 2001-11-14
PT1153179E (en) 2006-06-30
ATE310862T1 (en) 2005-12-15

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