WO2000066851A1 - Steel fibers for filling concrete - Google Patents
Steel fibers for filling concrete Download PDFInfo
- Publication number
- WO2000066851A1 WO2000066851A1 PCT/PL2000/000033 PL0000033W WO0066851A1 WO 2000066851 A1 WO2000066851 A1 WO 2000066851A1 PL 0000033 W PL0000033 W PL 0000033W WO 0066851 A1 WO0066851 A1 WO 0066851A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel
- concrete
- length
- fibers
- steel fibers
- Prior art date
Links
Classifications
-
- 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
- E04C5/012—Discrete reinforcing elements, e.g. fibres
Definitions
- the subject of the utility model is steel fiber, which is used to fill in the concrete used in all current construction methods.
- the known and generally used steel rods and wires for concrete reinforcement are characterized by different shapes and profiles.
- the production of steel bars that meet the aforementioned requirements requires a difficult and expensive technology.
- the known steel rods and wires are mixed unevenly during the filling of the concrete and protrude at their ends from the concrete surface, which leads to their corrosion and thus damage to the concrete surface.
- Synthetic fibers are also known as concrete fillings. Their use is limited, however, because after the concrete has solidified, they have only a slight influence on its physical properties and do not represent concrete reinforcement. The known synthetic fibers are not used on construction sites, where high temperatures occur and where on the Concrete has high mechanical properties.
- steel fibers for filling concrete with relatively small diameters and short lengths which only really fulfill their tasks when their shape and size permit wide use.
- the use of known steel fibers in the concrete filling process is limited because they make the correct mixing process and the correct distribution of steel fibers in the concrete mixture difficult because of the short sections, their geometry and shape, and above all because of the use in the concrete mixture, since they are difficult to mix Ball of steel fiber clumped to block pumps and pipes, which leads to uneven mixing.
- the aim of the utility model is to work out steel fiber for the filling of the concrete, which will have such properties of shape, size, as well as the possibility of assembly and transportation, which will eliminate the aforementioned disadvantages and allow them in general and industrial construction to a large extent and to produce components and thereby reduce the transport and storage costs.
- the steel fibers according to the utility model are made from highly qualified cold drawn carbon steel wire and have the shape of an elongated flat wire with alternately bent ends at 45 °.
- the length of the bent ends is 2 mm.
- the length of their elevation is 2 mm.
- the ratio of the entire fiber length to its strength, i.e. the so-called slenderness is 80.
- the individual steel fibers are glued together and have the shape of wide strips.
- the steel fiber construction according to the utility model its physical The properties, compressive strength, length, shape and length of the bent ends allow the steel fiber to be properly anchored in the concrete mass during the mixing process, and the ratio of the fiber length to its strength in particular ensures good quality of reinforced concrete.
- Steel fibers that are stuck together in strips according to utility models allow easy and quick mixing of the steel fibers in the concrete and their even distribution, thereby ensuring a high quality of reinforced concrete.
- the glue dissolves the fiber immediately. This ensures fast mixing and uniform distribution of the steel fiber in the concrete, which ensures optimal effectiveness of the reinforcement.
- the steel fibers are protected against corrosion in the alkaline concrete environment, which also increases the quality and durability of reinforced concrete.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to steel fibers used for filling a concrete mixture which are made of highly-suited, cold drawn carbon steel, and are characterized in that they have an elongated shape of a flattened wire whose ends are bent at a 45° angle in an alternate manner. The length of the bent ends equals 2.5 cm. The length of the elevations equals 2 cm, and the ratio of the entire steel fiber length to its thickness equals 80. The inventive steel fibers ensure the provision of a high quality steel-reinforced concrete. According to the invention, the fibers have the shape of wide strips that are glued to one another.
Description
Stahlfaser für die Betonausfüllung Steel fiber for concrete filling
Gegenstand des Gebrauchsmusters stellen Stahlfaser dar, die zum Ausfüllen des in allen gegenwärtigen Bauverfahren verwendeten Betons bestimmt werden .The subject of the utility model is steel fiber, which is used to fill in the concrete used in all current construction methods.
Die bekannten und allgemein verwendeten Stahlstäbe und -Drähte für Be- tonbewerung zeichnen sich durch unterschiedliche Formen und Profile aus. Damit die bekannten Stäbe den gestellten Anforderungen gerecht werden, die Metonmischung ordentlich ausfüllen, die entsprechende Heftigkeit aufweisen, muss eine entspreche Länge und Form vorhanden sein. Die Erzeugung von Stahlstäben, die den vorgenannten Anforderungen entsprechen, erfordert eine schwierige und kostbare Technologie. Die bekannten Stahlstäbe und -Drähte sind während der Betonausfüllung ungleichmäßig miteinander vermischt und ragen an ihren Enden aus der Betonoberfläche heraus, wodurch es zu deren Korrosion und somit einer Beschädigung der Betonberflache kommt.The known and generally used steel rods and wires for concrete reinforcement are characterized by different shapes and profiles. In order for the known rods to meet the requirements, to fill out the metal mixture properly, and to have the corresponding intensity, there must be an appropriate length and shape. The production of steel bars that meet the aforementioned requirements requires a difficult and expensive technology. The known steel rods and wires are mixed unevenly during the filling of the concrete and protrude at their ends from the concrete surface, which leads to their corrosion and thus damage to the concrete surface.
Auch Kunstfaser sind als Betonausfüllung bekannt. Ihre Anwendung ist allerdings begrenzt, weil sie nach der Betonerstarrung nur einen geringen Einfluß auf seine physikalischen Eigenschaften haben, und keine Betonarmierung darstellen. Die bekannten Kunstfaser finden keine An- wendung auf Baustellen, wo hohe Temperaturen auftreten und wo an den
Beton hohe mechanische Eigenschaften gestellt werden.Synthetic fibers are also known as concrete fillings. Their use is limited, however, because after the concrete has solidified, they have only a slight influence on its physical properties and do not represent concrete reinforcement. The known synthetic fibers are not used on construction sites, where high temperatures occur and where on the Concrete has high mechanical properties.
Bekannt sind ebenfalls Stahlfaser zur Betonausfüllung mit verhältnismäßig kleinen Durchmessern und kurzen Längen, die ihre Aufgaben erst dann richtig erfüllen, wenn ihre Form und Größe eine breite Anwendung erlaubt. Die Anwendung von bekannten Stahlfasern im Betonausfύllungs- verfahren ist beschränkt, weil sie wegen von kurzen Abschnitten, ihrer Geometrie und Form und vor allem wegen der Anwendung im losen Zustand den richtigen Mischvorgang und die richtige Verteilung von Stahlfasern in der Betonmischung erschweren, da die in eine Kugel zusammengeball- ten Stahlfaser zum Pumpen- und Leitungssperren führen, was zu einer ungleichmäßigen Vermischung führt.Also known are steel fibers for filling concrete with relatively small diameters and short lengths, which only really fulfill their tasks when their shape and size permit wide use. The use of known steel fibers in the concrete filling process is limited because they make the correct mixing process and the correct distribution of steel fibers in the concrete mixture difficult because of the short sections, their geometry and shape, and above all because of the use in the concrete mixture, since they are difficult to mix Ball of steel fiber clumped to block pumps and pipes, which leads to uneven mixing.
Das Ziel des Gebrauchsmusters ist es, Stahlfaser zum Ausfüllen des Betons auszuarbeiten, die über solche Eigenschaften der Form, Gröf*e sowie die Möglichkeiten der Konfektionierung und des Transports ver- fügen wird, die vorgenannten Nachteile beseitigen und erlauben, sie im allgemeinen und industriellen Bauwesen weitgehend anzuwenden und Bauteilen zu erzeugen und dadurch die Transport- und Lagerkosten herabsetzen .The aim of the utility model is to work out steel fiber for the filling of the concrete, which will have such properties of shape, size, as well as the possibility of assembly and transportation, which will eliminate the aforementioned disadvantages and allow them in general and industrial construction to a large extent and to produce components and thereby reduce the transport and storage costs.
Die Stahlfaser gemäp» dem Gebrauchsmuster werden aus hochqualifiziertem kaltgezogenen Kohlenstahldraht hergestellt und haben die Form eines verlängerten, Flachdrahts mit abwechselnd abgebogenen Enden unter 45°.The steel fibers according to the utility model are made from highly qualified cold drawn carbon steel wire and have the shape of an elongated flat wire with alternately bent ends at 45 °.
Die Lange der abgebogenen Enden betragt 2 mm., und die Länge deren Überhöhung 2 mm. Das Verhältnis der ganzen Faserlänge zu ihrer Stärke, d.h. die sog. Schlangheit beträgt 80. Die einzelnen Stahlfaser werden zusammengeklebt und haben die Form von breiten Streifen.The length of the bent ends is 2 mm., And the length of their elevation is 2 mm. The ratio of the entire fiber length to its strength, i.e. the so-called slenderness is 80. The individual steel fibers are glued together and have the shape of wide strips.
Die Stahlfaserkonstruktion nach dem Gebrauchsmuster, ihre physikalis-
chen Eigenschaften, Druckfeistigkeit, Länge, Form und Länge der abgebogenen Enden erlauben eine richtige Verankerung der Stahlfaser in der Betonmasse während des Mischvorgangs und das Verhältnis der Faserlänge zu seiner Stärke sorgt insbesondere für eine gute Qualität von Stahl- beton. Stahlfaser die gemäfS Gebrauchsmuster in Streifen zusammengeklebten sind, erlauben ein einfaches und schnelles Mischen der Stahlfaser im Beton sowie deren gleichmäßige Verteilung, wodurch eine hohe Qualität von Stahlbeton gesichert wird.The steel fiber construction according to the utility model, its physical The properties, compressive strength, length, shape and length of the bent ends allow the steel fiber to be properly anchored in the concrete mass during the mixing process, and the ratio of the fiber length to its strength in particular ensures good quality of reinforced concrete. Steel fibers that are stuck together in strips according to utility models allow easy and quick mixing of the steel fibers in the concrete and their even distribution, thereby ensuring a high quality of reinforced concrete.
Stahlfaser, die gemä(_> dem Gebrauchsmuster in Streifen zusammengekleb- ten sind, gewährleisten ihre einfache Konfektionierung; Transport und Lagerung.Steel fibers, which are glued together in strips according to the utility model, ensure that they are easy to assemble ; transport and storage.
Stahlfaser gemäfS dem Gebrauchsmuster werden auf def Abbildung dargestellt, wo die Figur 1 - die Stahlfaserform, die Figur 2 - die zu einen Streifen zusammengeklebten Stahlfaser in der Perspektive darstellen.Steel fiber according to the utility model are shown in the illustration, where Figure 1 - the steel fiber shape, Figure 2 - represent the steel fiber glued together into a strip in perspective.
Nachdem Stahlfaser, die gemäß dem Gebrauchsmuster zu Streifen zusammengeklebten sind, in den Beton hineingelegt werden, erfolgt durch die Leimauflδsung eine sofortige Trennung der Faser voneinander. Dadurch wird ein schnelles Vermischen und gleichartiges Verteilen der Stahlfaser im Beton gesichert, was eine optimale Effektivität der Be- wehrung gewährleistet. Die Stahlfaser werden in dem alkalischen Betonumfeld korrosionsgeschützt, was auch Qualität und Beständigkeit von Stahlbeton zusätzlich erhöht.
After steel fiber, which is glued into strips according to the utility model, is placed in the concrete, the glue dissolves the fiber immediately. This ensures fast mixing and uniform distribution of the steel fiber in the concrete, which ensures optimal effectiveness of the reinforcement. The steel fibers are protected against corrosion in the alkaline concrete environment, which also increases the quality and durability of reinforced concrete.
Claims
Schutzanspruch Protection claim
Stahlfaser die zum Ausfüllen von Betonmischung bestimmten werden aus hochqualifiziertem, kaltgezogenen Kohlenstahl hergestellt und zeichnen, dadurch gekennzeichnet, dap sie eine verlängerte Form eines Flachr drahts haben, das am Ende abwechselnd unter 45° abgebogen wird, wobei die Länge der abgebogenen Enden 2,5 mm, die-.Lange der Überhöhungen 2 mm und das Verhältnis der ganzen Stahlfaserlange zu ihrer Stärke 80 betragen, darüber hinaus haben die Stahlfaser die Form von breiten Streifen, die aus den einzelnen Fasern zusammengeklebt werden.
Steel fibers intended for filling concrete mix are made from high quality, cold drawn carbon steel and are characterized by the fact that they have an elongated shape of a flat wire, which at the end is alternately bent at 45 °, the length of the bent ends being 2.5 mm , the. -Length of the peaks 2 mm and the ratio of the entire length of the steel fiber to their thickness is 80, in addition, the steel fibers are in the form of wide strips which are glued together from the individual fibers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PLW.109570 | 1999-04-30 | ||
| PL10957099 | 1999-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000066851A1 true WO2000066851A1 (en) | 2000-11-09 |
Family
ID=19946662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/PL2000/000033 WO2000066851A1 (en) | 1999-04-30 | 2000-04-28 | Steel fibers for filling concrete |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2000066851A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261542A (en) * | 2010-12-15 | 2013-08-21 | 贝卡尔特公司 | Steel fibre for reinforcing concrete or mortar having an anchorage end with at least two bent sections |
| WO2022231547A1 (en) * | 2021-04-27 | 2022-11-03 | Kemerli Metal Sanayi Ve Ticaret Anonim Sirketi | A fiber structure for use in concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2225392A1 (en) * | 1973-04-16 | 1974-11-08 | Bekaert Sa Nv | |
| US3942955A (en) * | 1969-09-12 | 1976-03-09 | N. V. Bekaert S. A. | Reinforcing wire element |
| WO1997011239A1 (en) * | 1995-09-19 | 1997-03-27 | N.V. Bekaert S.A. | Steel wire element for mixing into subsequently hardening materials |
| DE19724192A1 (en) * | 1997-06-02 | 1998-12-10 | Mannesmann Ag | Steel fibre for reinforcing concrete and other hardening materials |
-
2000
- 2000-04-28 WO PCT/PL2000/000033 patent/WO2000066851A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942955A (en) * | 1969-09-12 | 1976-03-09 | N. V. Bekaert S. A. | Reinforcing wire element |
| FR2225392A1 (en) * | 1973-04-16 | 1974-11-08 | Bekaert Sa Nv | |
| WO1997011239A1 (en) * | 1995-09-19 | 1997-03-27 | N.V. Bekaert S.A. | Steel wire element for mixing into subsequently hardening materials |
| DE19724192A1 (en) * | 1997-06-02 | 1998-12-10 | Mannesmann Ag | Steel fibre for reinforcing concrete and other hardening materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261542A (en) * | 2010-12-15 | 2013-08-21 | 贝卡尔特公司 | Steel fibre for reinforcing concrete or mortar having an anchorage end with at least two bent sections |
| WO2022231547A1 (en) * | 2021-04-27 | 2022-11-03 | Kemerli Metal Sanayi Ve Ticaret Anonim Sirketi | A fiber structure for use in concrete |
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