DE959626C - Process for the production of prestressed concrete parts with a very low W / C factor - Google Patents

Process for the production of prestressed concrete parts with a very low W / C factor

Info

Publication number
DE959626C
DE959626C DER14615A DER0014615A DE959626C DE 959626 C DE959626 C DE 959626C DE R14615 A DER14615 A DE R14615A DE R0014615 A DER0014615 A DE R0014615A DE 959626 C DE959626 C DE 959626C
Authority
DE
Germany
Prior art keywords
low
forth
compaction
production
factor
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.)
Expired
Application number
DER14615A
Other languages
German (de)
Inventor
Friedrich Haarmann
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.)
REEH AG J
Original Assignee
REEH AG J
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
Priority to DER8685A priority Critical patent/DE952236C/en
Application filed by REEH AG J filed Critical REEH AG J
Priority to DER14615A priority patent/DE959626C/en
Application granted granted Critical
Publication of DE959626C publication Critical patent/DE959626C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • 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
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated articles
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

In -dem Patent 952 236 ist ein - Verfahren zur Herstellung von Spannbetonbauteilen mit sehr niedrigem W/Z-Faktor mittels einer über der vorgespannten Bewehrung verfahrbaren, ein-oder mehrläufigen, durch Schwingungserzeuger erregten Schalungseinrichtung beschrieben,, dessen wesentliches Merkmal darin besteht, daß die Verdichtung des Füllguts durch. unabhängig voneinander über die Seitenschalungen wirkende und gerichtete Schwingungen erzeugende Erreger hoher Leistung und durch den mittels der gegeneinander verschiebbar angeordneten Seitenschalungen erzeugten Preßdruck erfolgt.In -the patent 952 236 is a - method for the production of prestressed concrete components with a very low W / C factor by means of a movable over the prestressed reinforcement, single- or multi-barrel formwork device excited by vibration generators described, its essential feature is that the compression of the product through. Vibrations acting and directed independently of one another via the side formwork high-performance exciters and can be displaced against each other by means of the arranged side formwork generated pressure takes place.

Mit diesem Verfahren, ist eine zuverlässige Verdichtung bei der Herstellung von< Formlingen, insbesondere Spannbetonteilen aus wasserarmen Betonmischungen, gegeben.. Hierbei ist von besonderer Bedeutung, da.B eine möglichst vollständige Entlüftung erreicht wird, was bei zäher Betonkonsistenz Schwierigkeiten bereitet.With this method, a reliable compaction is possible during the production of <bricks, in particular prestressed concrete parts made from low-water concrete mixes, given .. Here it is of particular importance that B is as complete as possible Ventilation is achieved, which causes difficulties in the case of tough concrete consistency.

Erfindungsgemäß werden nun zum Zwecke einer praktisch vollkommenen Entlüftung wasserarmer Betonmischungen verschiebbare Verdichtungselemente in der jeweiligen Verdichtungsrichtung während des Verdichtungsvorganges im Wechsellspiel hin und her bewegt, wodurch ein zusätzliches starkes Durchkneten der Betonmischung erreicht wird.According to the invention are now for the purpose of a practically perfect Ventilation of low-water concrete mixes displaceable compaction elements in the respective compression direction during the compression process in alternating play moved back and forth, causing an additional strong kneading of the concrete mixture is achieved.

In der Zeichnung sind zwei Ausführungsbeispiele zur Durchführung des erfindungsgemäßen Verfahrens in Fig. i und 2 schematisch dargestellt. Auf der Bodenplatte i ruhen Seitenschalungen 2 und 3, auf welche die Erreger 4 und 5 einwirken. Diese Schalungen sind, z. B. beide, verschiebbar angeordnet und werden erfindungsgemäß während des Verdichtungsvorganges nicht kontinuierlich, sondern im Wechselspiel gegeneinander hin und her verschoben, so daß gleichzeitig mit der Vibrationsverdichtung der Betonmischung ein Durchkneten der Füllmasse erfolgt, wodurch in erhöhtem Maße eine Entlüftung und Plastifizierung der wasserarmen Betonmischung erreicht wird.The drawing shows two exemplary embodiments for carrying out the The method according to the invention is shown schematically in FIGS. On the bottom plate i side formworks 2 and 3 are resting on which the pathogens 4 and 5 act. These Formworks are, for. B. both, arranged displaceably and are according to the invention not continuously during the compression process, but in an interplay shifted back and forth against each other, so that simultaneously with the vibration compression the concrete mixture is kneaded through the filling compound, thereby increasing the extent a deaeration and plasticization of the water-poor concrete mix is achieved.

Im Ausführungsbeispiel ist noch ein, senkrecht wirkendes Erregerelement 6 gezeigt, das so gesteuert wird, daß es eine auf und ab gerichtete Bewegung während des Verdichtungsvorganges ausführt. Dadurch wird in Verbindung mit der Hin: undherbewegung der Seitenschalungen der Knetvorgang noch weiter verstärkt.In the exemplary embodiment there is also a vertically acting exciter element 6, which is controlled so that there is an up and down movement during of the compression process. This works in conjunction with the to and fro movement the side formwork intensifies the kneading process even further.

In Fig.2 ist eine andere Art des Knetens während des Verdichtungsvorganges dargestellt. 7 ist die Form, in welcher sich die zu verdichtende Füllmasse befindet. Mit 8 und 9 sind Erregerelemente schematisch veranschaulicht, welche, wie das Element 6 in der Ausführungsform nach Fig. i, in der Senkrechten und in derselben Verdichtungsrichtung wirken. Sie werden wechselweise in Gruppen auf und ab bewegt. Wenn die Gruppe 8 in die Füllmasse eindringt, läuft die Gruppe 9 nach oben, wodurch wiederum ein zusätzlicher Knetvorgang erreicht wird.In Fig.2 there is another type of kneading during the compaction process shown. 7 is the shape in which the filling compound to be compacted is located. With 8 and 9 exciter elements are schematically illustrated which, like the element 6 in the embodiment according to FIG. I, in the vertical and in the same compression direction works. They are moved up and down alternately in groups. If the group is 8 penetrates into the filling compound, the group 9 runs upwards, which in turn creates an additional Kneading process is achieved.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zum Herstellen von Spannbetonbauteilen mit sehr niedrigem W/Z-Faktor nach Patent 952 236, dadurch gekennzeichnet, daß verschiebbare Verdichtungselemente in der jeweiligen Verdichtungsrichtung während des Verdichtungsvorganges im Wechselspiel hin und her bewegt werden zu dem Zweck, durch zusätzliches Kneten der Füllmasse die Entlüftung der wasserarmen Betonmischung zu fördern. PATENT CLAIMS: i. Process for the production of prestressed concrete components with a very low W / C factor according to patent 952 236, characterized in that displaceable compression elements are moved back and forth in the respective compression direction during the compression process for the purpose of venting the to promote low-water concrete mix. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, da.ß waagerecht hin und her verschiebbare Verdichtungselemente (2/4, 3/5) zusammen mit einem in der Senkrechten. auf und ab verschiebbaren Verdichtungselement (6) auf die Betonmischung einwirken. 2. Procedure according to claim i, characterized in that they are horizontally displaceable back and forth Compaction elements (2/4, 3/5) together with one in the vertical. back and forth displaceable compaction element (6) act on the concrete mix. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß mehrere in derselben Verdichtungsrichtung parallel zueinander hin und her verschiebbare Verdichtungselemente (8, 9) wechselweise auf die Betonmischung einwirken. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 570 725; USA.-Patentschriften Nr. 2 256 361, 2 2649483. The method according to claim i, characterized in that a plurality of compaction elements (8, 9) which can be displaced back and forth parallel to one another in the same compaction direction act alternately on the concrete mix. Documents considered: German Patent No. 570 725; U.S. Patent Nos. 2,256,361, 2,264,948
DER14615A 1952-03-29 1954-07-15 Process for the production of prestressed concrete parts with a very low W / C factor Expired DE959626C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DER8685A DE952236C (en) 1952-03-29 1952-03-29 Process for the continuous production of profiled beams with a very low W / C factor and other prestressed concrete components
DER14615A DE959626C (en) 1952-03-29 1954-07-15 Process for the production of prestressed concrete parts with a very low W / C factor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER8685A DE952236C (en) 1952-03-29 1952-03-29 Process for the continuous production of profiled beams with a very low W / C factor and other prestressed concrete components
DER14615A DE959626C (en) 1952-03-29 1954-07-15 Process for the production of prestressed concrete parts with a very low W / C factor

Publications (1)

Publication Number Publication Date
DE959626C true DE959626C (en) 1957-03-07

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DER8685A Expired DE952236C (en) 1952-03-29 1952-03-29 Process for the continuous production of profiled beams with a very low W / C factor and other prestressed concrete components
DER14615A Expired DE959626C (en) 1952-03-29 1954-07-15 Process for the production of prestressed concrete parts with a very low W / C factor

Family Applications Before (1)

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DER8685A Expired DE952236C (en) 1952-03-29 1952-03-29 Process for the continuous production of profiled beams with a very low W / C factor and other prestressed concrete components

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075488B (en) * 1960-02-11
DE1084186B (en) * 1957-04-11 1960-06-23 Weiler G M B H Maschf Sliding formwork for the production of concrete girders with pre-tensioned steel wires
DE1290469B (en) * 1967-06-30 1969-03-06 Rheinbau Gmbh Form for the production of large-area concrete or reinforced concrete slabs
WO1983001593A1 (en) * 1981-11-10 1983-05-11 Paakkinen, Ilmari Method for continuous casting of objects out of a high-viscosity casting mix as well as a slide-casting mould for carrying out the method
WO1983001594A1 (en) * 1981-11-10 1983-05-11 Paakkinen, Ilmari Method for the casting of large-size objects out of a high-viscosity concrete mix as well as a mould for carrying out the method
EP0183681A2 (en) * 1984-11-29 1986-06-04 Rakennusvalmiste Oy Method of compacting concrete
EP0260249A1 (en) * 1986-09-11 1988-03-16 Simmering-Graz-Pauker Aktiengesellschaft High-pressure vessel with a compression device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045303B (en) * 1956-12-28 1958-11-27 Schlosser & Co G M B H Foldable shape
DE1111087B (en) * 1959-09-23 1961-07-13 Weiler Brauer K G Maschf Sliding formwork for the production of concrete girders with pre-tensioned steel wires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE570725C (en) * 1931-02-02 1933-02-18 Achille Knapen Method and device for the production of artificial hollow stones
US2256361A (en) * 1938-04-09 1941-09-16 Francis J Straub Block making apparatus and method of manufacture
US2264948A (en) * 1939-03-31 1941-12-02 Donald A Mckenzie Method and apparatus for making building blocks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE570725C (en) * 1931-02-02 1933-02-18 Achille Knapen Method and device for the production of artificial hollow stones
US2256361A (en) * 1938-04-09 1941-09-16 Francis J Straub Block making apparatus and method of manufacture
US2264948A (en) * 1939-03-31 1941-12-02 Donald A Mckenzie Method and apparatus for making building blocks

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075488B (en) * 1960-02-11
DE1084186B (en) * 1957-04-11 1960-06-23 Weiler G M B H Maschf Sliding formwork for the production of concrete girders with pre-tensioned steel wires
DE1290469B (en) * 1967-06-30 1969-03-06 Rheinbau Gmbh Form for the production of large-area concrete or reinforced concrete slabs
EP0079172A2 (en) * 1981-11-10 1983-05-18 Oy Partek Ab Method for the casting of objects from a high-viscosity mix, and a mould for carrying out the method
WO1983001594A1 (en) * 1981-11-10 1983-05-11 Paakkinen, Ilmari Method for the casting of large-size objects out of a high-viscosity concrete mix as well as a mould for carrying out the method
EP0079173A2 (en) * 1981-11-10 1983-05-18 Oy Partek Ab Method for continuous slide-casting of objects from a high-viscosity casting mix as well as a slide-casting mould for carrying out the method
WO1983001593A1 (en) * 1981-11-10 1983-05-11 Paakkinen, Ilmari Method for continuous casting of objects out of a high-viscosity casting mix as well as a slide-casting mould for carrying out the method
EP0079172A3 (en) * 1981-11-10 1984-08-29 Oy Partek Ab Method for the casting of large-size objects from a high-viscosity concrete mix, and a mould for carrying out the method
EP0079173A3 (en) * 1981-11-10 1984-08-29 Oy Partek Ab Method for continuous casting of objects from a high-viscosity casting mix as well as a slide-casting mould for carrying out the method
US4539165A (en) * 1981-11-10 1985-09-03 Oy Partek Ab Method for the casting of large-size objects out of a high-viscosity concrete mix
US4574064A (en) * 1981-11-10 1986-03-04 Oy Partek Ab Method for continuous casting of objects out of a high-viscosity casting mix
EP0183681A2 (en) * 1984-11-29 1986-06-04 Rakennusvalmiste Oy Method of compacting concrete
EP0183681A3 (en) * 1984-11-29 1988-09-07 Rakennusvalmiste Oy Method of compacting concrete
EP0260249A1 (en) * 1986-09-11 1988-03-16 Simmering-Graz-Pauker Aktiengesellschaft High-pressure vessel with a compression device

Also Published As

Publication number Publication date
DE952236C (en) 1956-12-06

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