EP1790792A2 - Artefakt für den Bau - Google Patents

Artefakt für den Bau Download PDF

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Publication number
EP1790792A2
EP1790792A2 EP06124764A EP06124764A EP1790792A2 EP 1790792 A2 EP1790792 A2 EP 1790792A2 EP 06124764 A EP06124764 A EP 06124764A EP 06124764 A EP06124764 A EP 06124764A EP 1790792 A2 EP1790792 A2 EP 1790792A2
Authority
EP
European Patent Office
Prior art keywords
artefact
segments
fibres
artefact according
fibre
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06124764A
Other languages
English (en)
French (fr)
Other versions
EP1790792A3 (de
Inventor
Paola Fabri
Lorena Gamberini
Andra Nobili
Mariano Salvadore
Angelo Marcello Tarantino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fili & Forme Srl
Original Assignee
Fili & Forme Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fili & Forme Srl filed Critical Fili & Forme Srl
Publication of EP1790792A2 publication Critical patent/EP1790792A2/de
Publication of EP1790792A3 publication Critical patent/EP1790792A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced

Definitions

  • the present invention relates to a building artefact.
  • building artefacts are formed by a mixture of inert materials and bonding material, such as for example concrete. It is also known that in order to increase tensile strength, a structure defined by bars or rods formally formed by iron or an iron-based alloy is positioned within the aforesaid mixture. If on one hand an increase of the tensile strength is obtained by reinforcing the artefact with an iron structure, on the other hand some problems or drawbacks are introduced. A first drawback is due to the considerable costs of iron procurement and of complex structure assembly, by specialised personnel.
  • a second drawback is due to the fact that concrete is a porous material and therefore water, salinity or other atmospheric elements which attack the artefact may extend within the latter and attack the iron structure with all the disadvantages which derive therefrom on the mechanical strength of the artefact itself. Furthermore, the iron structure is inserted within the artefact in well-defined positions and this determines a lack of homogeneity of the mechanical features of the artefact between the zones in which the reinforcement is present and the zones from which the reinforcement is absent, the latter zones being subject to crumbling. In order to avoid the aggression of the iron structure and the crumbling it is used to fill the pores of the artefact with resins which however in turn introduce other drawbacks, such as manufacturing costs and the toxicity of such resins.
  • a building artefact is made of the type comprising a mixture of inert material and of bonding material and a plurality of plastic material fibres embedded in said mixture, characterised in that said fibres present at least two subsequent segments which converge in a convergence point.
  • Artefact 1 consists of a mixture 2 of inert materials and of bonding material, such as for example concrete.
  • a plurality of fibres 3 formed by plastic material is introduced.
  • Fibres 3 preferably present an elliptical section and a rough surface.
  • Fibres 3 are constituted by a sequence of straight segments in which each single segment converges with the previous and next segment in a corresponding convergence point 4 forming a sharp edge to the greatest possible extent.
  • fibre 3 presents a plurality of segments 5 alternated with segments 6. Segments 5 present a longer length than that of next and previous segment 6 and define with these an acute angle.
  • all segments 5 are reciprocally parallel, and all segments 6 are reciprocally parallel.
  • a building artefact is made within which a plurality of fibres formed by plastic material is present whose design is appropriately made for the purpose of significantly increasing the grip with the concrete matrix and consequently obtaining the maximum mechanical benefit from the property of the fibres.
  • the action of the latter determines a significant reduction of cracking, an increase of ductility and tensile strength.
  • Most of these benefits are ascribed to the convergence angles between the fibre segments, which determine the meshing of the mixture with the fibres. Indeed, the filling of the subintended zones by the matrix occurs at such convergence points between adjacent segments.
  • the action of a sharp edge is known to induce a concentration of the stresses in the matrix, which favours the penetration of the fibre therein and inhibits slipping off.
  • the section of fibre 3 may differ from that described, and specifically such section may be polygonal. Furthermore, between reciprocally adjacent pairs of segments 5 and 6 there may be introduced a third joining segment with a different angle with respect to segments 5 and 6. It must be underlined that fibres 3 or at least a certain number of the latter may be reciprocally braided or however a connection between such fibres 3 may be contemplated so as to determine a well-defined position of at least a plurality of fibres 3 at a zone of artefact 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Nonwoven Fabrics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Reinforced Plastic Materials (AREA)
EP06124764A 2005-11-28 2006-11-24 Artefakt für den Bau Withdrawn EP1790792A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20050074 ITBO20050074U1 (it) 2005-11-28 2005-11-28 Manufatto per l'edilizia

Publications (2)

Publication Number Publication Date
EP1790792A2 true EP1790792A2 (de) 2007-05-30
EP1790792A3 EP1790792A3 (de) 2007-10-24

Family

ID=38007559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124764A Withdrawn EP1790792A3 (de) 2005-11-28 2006-11-24 Artefakt für den Bau

Country Status (2)

Country Link
EP (1) EP1790792A3 (de)
IT (1) ITBO20050074U1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459833A (en) * 2008-04-29 2009-11-11 Ozgur Keskin Concrete ground beam containing plastic reinforcement fibres
WO2012080326A3 (en) * 2010-12-15 2012-11-15 Nv Bekaert Sa Steel fibre for reinforcing concrete or mortar having an anchorage end with at least two bent sections
US8871020B2 (en) 2009-06-12 2014-10-28 Nv Bekaert Sa High elongation fibres
US9045901B2 (en) 2009-06-12 2015-06-02 Nv Bekaert Sa High elongation fibre with good anchorage
US9435122B2 (en) 2010-12-15 2016-09-06 Nv Bekaert Sa Steel fibre for reinforcing concrete or mortar having an anchorage end with at least three straight sections

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942955A (en) * 1969-09-12 1976-03-09 N. V. Bekaert S. A. Reinforcing wire element
US3986885A (en) * 1971-07-06 1976-10-19 Battelle Development Corporation Flexural strength in fiber-containing concrete
US3994150A (en) * 1972-11-28 1976-11-30 Australian Wire Industries Proprietary Limited Method of making improved concrete reinforcing elements
DE4223804A1 (de) * 1992-07-20 1994-01-27 Gloerfeld Hermann Metallwaren Drahtfaser aus Metall zur Verwendung für die Verstärkung von insbesondere Beton
EP0582905A2 (de) * 1992-08-13 1994-02-16 VULKAN-HAREX STAHLFASERTECHNIK GmbH & Co. KG Faser zur Bewehrung von Beton oder dergleichen aus Draht oder Flachband und Einrichtung zum Herstellen solcher Fasern
DE29901676U1 (de) * 1999-02-01 1999-08-12 Vulkan-Harex Stahlfasertechnik GmbH & Co. KG, 44653 Herne Bewehrungsfaser zur Bewehrung von Stahlfaserbeton
WO2002048476A1 (en) * 2000-12-13 2002-06-20 N.V. Bekaert S.A. Reinforcement fiber bundle and production method of such reinforcement fiber bundle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942955A (en) * 1969-09-12 1976-03-09 N. V. Bekaert S. A. Reinforcing wire element
US3986885A (en) * 1971-07-06 1976-10-19 Battelle Development Corporation Flexural strength in fiber-containing concrete
US3994150A (en) * 1972-11-28 1976-11-30 Australian Wire Industries Proprietary Limited Method of making improved concrete reinforcing elements
DE4223804A1 (de) * 1992-07-20 1994-01-27 Gloerfeld Hermann Metallwaren Drahtfaser aus Metall zur Verwendung für die Verstärkung von insbesondere Beton
EP0582905A2 (de) * 1992-08-13 1994-02-16 VULKAN-HAREX STAHLFASERTECHNIK GmbH & Co. KG Faser zur Bewehrung von Beton oder dergleichen aus Draht oder Flachband und Einrichtung zum Herstellen solcher Fasern
DE29901676U1 (de) * 1999-02-01 1999-08-12 Vulkan-Harex Stahlfasertechnik GmbH & Co. KG, 44653 Herne Bewehrungsfaser zur Bewehrung von Stahlfaserbeton
WO2002048476A1 (en) * 2000-12-13 2002-06-20 N.V. Bekaert S.A. Reinforcement fiber bundle and production method of such reinforcement fiber bundle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459833A (en) * 2008-04-29 2009-11-11 Ozgur Keskin Concrete ground beam containing plastic reinforcement fibres
US8871020B2 (en) 2009-06-12 2014-10-28 Nv Bekaert Sa High elongation fibres
US9045901B2 (en) 2009-06-12 2015-06-02 Nv Bekaert Sa High elongation fibre with good anchorage
WO2012080326A3 (en) * 2010-12-15 2012-11-15 Nv Bekaert Sa Steel fibre for reinforcing concrete or mortar having an anchorage end with at least two bent sections
US8962150B2 (en) 2010-12-15 2015-02-24 Nv Bekaert Sa Steel fibre for reinforcing concrete or mortar having an anchorage end with at least two bent sections
US9435122B2 (en) 2010-12-15 2016-09-06 Nv Bekaert Sa Steel fibre for reinforcing concrete or mortar having an anchorage end with at least three straight sections
EA025712B1 (ru) * 2010-12-15 2017-01-30 Нв Бекаэрт Са Стальное волокно для армирования бетона или цементного раствора, имеющее анкерный конец по меньшей мере с двумя изогнутыми секциями

Also Published As

Publication number Publication date
ITBO20050074U1 (it) 2007-05-29
EP1790792A3 (de) 2007-10-24

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