DE873378C - Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like - Google Patents

Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like

Info

Publication number
DE873378C
DE873378C DEP6331A DEP0006331A DE873378C DE 873378 C DE873378 C DE 873378C DE P6331 A DEP6331 A DE P6331A DE P0006331 A DEP0006331 A DE P0006331A DE 873378 C DE873378 C DE 873378C
Authority
DE
Germany
Prior art keywords
concrete
dams
production
dense surface
surface concrete
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
DEP6331A
Other languages
German (de)
Inventor
Heinrich Dr-Ing Press
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEP6331A priority Critical patent/DE873378C/en
Application granted granted Critical
Publication of DE873378C publication Critical patent/DE873378C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Verfahren zur Herstellung eines dichten Oberflächenbetons, insbesondere für Wasserbauten, wie Talsperren u. dgl. Um einen an der Außenfläche dichten Beton zu erhalten, wird u. a. das bekannte Verfahren zum Entwässern des Betons durch Unterdruck, .die sogenannte Vakuumschalung, verwandt.Process for the production of a dense surface concrete, in particular for hydraulic structures such as dams and the like to obtain is, inter alia. the well-known method of draining concrete using negative pressure, .the so-called vacuum shuttering, related.

Durch das Verfahren gemäß der Erfindung soll auf anderem Wege die Entwässerung des Betons erreicht und; damit ein dichter Oberflächenbeton erzielt werden. Zu diesem Zweck werden die bekannten Elektro-Osmose-Vorgänge herangezogen. Wie umfangreiche bereits durchgeführte Versuche erwiesen haben, wird durch die neuartige Anwendung der Elektro-Osmose-Vorgänge auf den frischen Beton eine dichte, wetterfeste Betonaußenschicht erzielt, wie sie vor allem für Wasserhauten, besonders Talsperren, gefordert werden muß. Zur Erreichung dieser Elektro-Osmose-Vorgänge im Beton werden in einigem Abstand von der Betonaußenfläche Elektroden aus Stahl oder anderem Metall, eventuell gleichzeitig als Bewehrung sowieso erforderlich, einbetoniert bzw. in Hohlräumen angeordnet, « älirend die Außenschalung mit Kupferelektroden versehen wird. Durch das Anschließen der in dem frisch eingebrachten Beton eingebauten Elektroden an den elektrischen Strom erfolgt eine Entwässerung des in der Verdichtung stehenden frischen Betons nach außen zur Schalung, von wo das entzogene Wasser abgeführt wird. Mit der Entwässerung des frischen Betons werden für den dichteren Beton günstige chemische und mechanische Vorgänge verursacht und weitere Hohlräume geschaffen, die durch die Verdichtung des Betons mittels Rüttler, möglichst Hochfrequenzrüttler, geschlossen werden. Aber auch die mit dem Entzug des Wassers durch Verlagerung und Verschlämmung auftretende dichtende Wirkung, gleich der bei der Vakuumschalung, wirkt sich aus.By the method according to the invention in other ways Drainage of concrete achieved and; so that a dense surface concrete is achieved will. The known electro-osmosis processes are used for this purpose. As extensive tests that have already been carried out have shown, the new Application of the electro-osmosis processes to the fresh concrete a dense, weatherproof Concrete outer layer achieved, as it is especially for water structures, especially dams, must be required. In order to achieve these electro-osmosis processes in concrete At some distance from the outer surface of the concrete, electrodes made of steel or other metal, possibly required at the same time as reinforcement anyway, concreted in or in Arranged cavities, provided the outer formwork with copper electrodes will. By connecting the electrodes built into the freshly poured concrete to the electric current there is a drainage of what is in the process of compression fresh concrete to the outside to the formwork, from where the extracted water is drained. With the drainage of the fresh concrete become favorable for the denser concrete causes chemical and mechanical processes and creates additional cavities, caused by the compaction of the concrete by means of vibrators, if possible high-frequency vibrators, closed will. But also those with the withdrawal of water through displacement and silting up Occurring sealing effect, the same as with vacuum shuttering, has an effect.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines dichten Oberflächenbetons, insbesondere für Wasserbauten, wie Talsperren u. dgl.,- d'adurc'h gekennzeichnet, daß von im Beton einbetonierten oder in Hohlräumen des Betons angeordneten.Elektroden aus Stahl oder anderen Materialien zur besonders hergestellten, z. B. mit Kupferelektroden, versehenen Schalung elektrischer Strom durch den. Beton während seines Ver dichtens und. Abbindens geleitet wird, wodurch eine Entwässerung und eine dichte Außenbetonschicht erzeugt wird. Angezogene Druckschriften: Deutsche Patentschrift Nr. 655 557-PATENT CLAIM: Process for the production of a dense surface concrete, especially for water structures, such as dams and the like, - d'adurc'h marked, that of electrodes embedded in concrete or arranged in cavities in the concrete Made of steel or other materials for specially manufactured, e.g. B. with copper electrodes, provided formwork electrical current through the. Concrete during its compaction and. Setting is directed, creating a drainage and a dense outer concrete layer is produced. Attached publications: German patent specification No. 655 557-
DEP6331A 1951-10-13 1951-10-13 Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like Expired DE873378C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP6331A DE873378C (en) 1951-10-13 1951-10-13 Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP6331A DE873378C (en) 1951-10-13 1951-10-13 Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like

Publications (1)

Publication Number Publication Date
DE873378C true DE873378C (en) 1953-04-13

Family

ID=7360566

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP6331A Expired DE873378C (en) 1951-10-13 1951-10-13 Process for the production of a dense surface concrete, especially for hydraulic structures, such as dams and the like. like

Country Status (1)

Country Link
DE (1) DE873378C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE655557C (en) * 1935-10-05 1938-01-18 Karl Pauli Billner Device for increasing the strength of concrete through simultaneous use of suction and pressure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE655557C (en) * 1935-10-05 1938-01-18 Karl Pauli Billner Device for increasing the strength of concrete through simultaneous use of suction and pressure

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