EP0442010A1 - Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0442010A1
EP0442010A1 EP90102931A EP90102931A EP0442010A1 EP 0442010 A1 EP0442010 A1 EP 0442010A1 EP 90102931 A EP90102931 A EP 90102931A EP 90102931 A EP90102931 A EP 90102931A EP 0442010 A1 EP0442010 A1 EP 0442010A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
corrosion
gas concrete
pressed
steel
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.)
Granted
Application number
EP90102931A
Other languages
German (de)
English (en)
Other versions
EP0442010B1 (fr
Inventor
Gerhard Schultz
Anton Hartl
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.)
Hebel Stulln & Co Te Stulln Bondsrepubliek GmbH
Original Assignee
VAW FLUSSSPAT CHEMIE GmbH
VAW FLUSSSPAT-CHEMIE GmbH
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 VAW FLUSSSPAT CHEMIE GmbH, VAW FLUSSSPAT-CHEMIE GmbH filed Critical VAW FLUSSSPAT CHEMIE GmbH
Priority to DE90102931T priority Critical patent/DE59002656D1/de
Priority to ES90102931T priority patent/ES2052989T3/es
Priority to AT90102931T priority patent/ATE94247T1/de
Priority to EP90102931A priority patent/EP0442010B1/fr
Publication of EP0442010A1 publication Critical patent/EP0442010A1/fr
Application granted granted Critical
Publication of EP0442010B1 publication Critical patent/EP0442010B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings

Definitions

  • the invention relates to a method for corrosion protection of steel cut surfaces of reinforced gas concrete components and a device for carrying out the method, which enables permanent corrosion protection of steel cut surfaces of reinforced gas concrete components with the aid of a molded part.
  • the object of the present invention is to achieve or even exceed the advantages of the conventional methods mentioned by means of a completely new method, without having to accept the accompanying disadvantages of the conventional methods. This object is achieved by the features specified in the patent claims.
  • a deep-drawn part was produced from a cylindrical, smooth sheet metal sleeve - closed on one side.
  • a wall plate A with exposed steel cut surfaces and a wall plate B which was protected against corrosion according to the invention were subjected to an outdoor weathering test. After a year, it was found that wall plate A had strong signs of corrosion on the steel cut surfaces, while wall plate B according to the invention remained without any signs of corrosion.
  • the coating had a particularly protective effect against corrosion under the following conditions: application amount at least 1800 g / m 2 in two layers, the first layer with approx. 20% and the second layer with max. Is diluted 5%.
  • application amount at least 1800 g / m 2 in two layers
  • the first layer with approx. 20%
  • the second layer with max. Is diluted 5%.
  • temperatures must not fall below + 5 °. Under these conditions, it was found that even a one-year tightened corrosion test showed no flaking and no signs of corrosion.
  • the corrosion-protected aerated concrete component produced according to the invention can be provided with a later coat of paint, a smooth outer surface being achieved.
  • Stainless steel is preferably used as the material for the sleeve according to the invention, because the rigidity with a small material thickness is particularly large.
  • the low material thickness is necessary in order to avoid even the smallest unevenness on the surface after the gas concrete coating.
  • the sleeve dimensions were determined in accordance with the invention in such a way that firm anchoring in the gas concrete is ensured even with a smooth outer surface of the sleeve. With short sleeves there is a risk that the minimum penetration depth is not guaranteed for firm anchoring, while with longer sleeves the first reinforcement crossbar of a reinforcement mat can be hit by the sleeve. Then it is no longer possible to press in cleanly, but there are squashes and bumps on the cutting surface.
  • the limits for the sleeve diameter are determined by the fact that, on the one hand, it must be possible to glide smoothly over the reinforcing steel in the gas concrete and, on the other hand, there is no tilting due to excessive play on the reinforcing steel. With sleeve diameters over 50 mm there is a risk that when pressed in the sleeve protrudes over the gas concrete component and damages its edge.
  • the wall thickness of the sleeve should be as small as possible so that no noticeable elevations are obtained on the gas concrete coating.
  • the following dimensions of the sleeve have proven to be particularly advantageous: wall thickness 0.27 mm, sleeve diameter 15 mm, sleeve length 10 mm.
  • the gas concrete section is denoted by 1, the reinforcement by 2 and the reinforcement section by 3.
  • the molded part 4 consisting of a sleeve is pressed into the gas concrete component via the reinforcement cut surface 3.
  • the corrosion protection lacquer applied to the reinforcement cut surface 3 before the sleeve 4 is pressed in has the reference number 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Laminated Bodies (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Building Environments (AREA)
EP90102931A 1990-02-15 1990-02-15 Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé Expired - Lifetime EP0442010B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE90102931T DE59002656D1 (de) 1990-02-15 1990-02-15 Vefahren zum Korrosionsschutz an Schnittflächen von bewehrten Gasbeton-Bauteilen und Vorrichtung zur Durchführung des Verfahrens.
ES90102931T ES2052989T3 (es) 1990-02-15 1990-02-15 Procedimiento para la proteccion anticorrosiva de superficies de corte en elementos de construccion de hormigon armado y dispositivo para la realizacion de dicho procedimiento.
AT90102931T ATE94247T1 (de) 1990-02-15 1990-02-15 Vefahren zum korrosionsschutz an schnittflaechen von bewehrten gasbeton-bauteilen und vorrichtung zur durchfuehrung des verfahrens.
EP90102931A EP0442010B1 (fr) 1990-02-15 1990-02-15 Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90102931A EP0442010B1 (fr) 1990-02-15 1990-02-15 Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé

Publications (2)

Publication Number Publication Date
EP0442010A1 true EP0442010A1 (fr) 1991-08-21
EP0442010B1 EP0442010B1 (fr) 1993-09-08

Family

ID=8203653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102931A Expired - Lifetime EP0442010B1 (fr) 1990-02-15 1990-02-15 Procédé pour la protection contre la corrosion de surfaces de section d'éléments en béton léger armé et dispositif pour la mise en oeuvre du procédé

Country Status (4)

Country Link
EP (1) EP0442010B1 (fr)
AT (1) ATE94247T1 (fr)
DE (1) DE59002656D1 (fr)
ES (1) ES2052989T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170326B1 (en) 1998-06-29 2001-01-09 Veri-Tek Inc. Signal processing system for energy transfer arrangement under test
US6523422B1 (en) 1998-06-29 2003-02-25 Veri-Tek Inc. Isolation arrangement for system under test
US9956602B2 (en) 2012-09-28 2018-05-01 Antonios Anagnostopoulos Products, systems, and methods for placement of covers on metallic spacers of concrete reinforcement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1491395A (fr) * 1966-06-27 1967-08-11 Mode de protection des armatures
DE1296773B (de) * 1965-03-03 1969-06-04 Badische Stahlwerke Schubsicherungsbuegel fuer Stahlbetonbauteile
DE3446006A1 (de) * 1984-12-17 1986-07-03 Wayss & Freytag Ag, 6000 Frankfurt Korrosionsgeschuetzter bewehrungsstab zur ueberbrueckung planmaessiger bauwerksfugen
US4644726A (en) * 1986-03-03 1987-02-24 Wheeler Charles F Steel placement assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296773B (de) * 1965-03-03 1969-06-04 Badische Stahlwerke Schubsicherungsbuegel fuer Stahlbetonbauteile
FR1491395A (fr) * 1966-06-27 1967-08-11 Mode de protection des armatures
DE3446006A1 (de) * 1984-12-17 1986-07-03 Wayss & Freytag Ag, 6000 Frankfurt Korrosionsgeschuetzter bewehrungsstab zur ueberbrueckung planmaessiger bauwerksfugen
US4644726A (en) * 1986-03-03 1987-02-24 Wheeler Charles F Steel placement assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170326B1 (en) 1998-06-29 2001-01-09 Veri-Tek Inc. Signal processing system for energy transfer arrangement under test
US6523422B1 (en) 1998-06-29 2003-02-25 Veri-Tek Inc. Isolation arrangement for system under test
US9956602B2 (en) 2012-09-28 2018-05-01 Antonios Anagnostopoulos Products, systems, and methods for placement of covers on metallic spacers of concrete reinforcement

Also Published As

Publication number Publication date
EP0442010B1 (fr) 1993-09-08
ES2052989T3 (es) 1994-07-16
DE59002656D1 (de) 1993-10-14
ATE94247T1 (de) 1993-09-15

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