Carl Rabitz

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Carl Rabitz (born December 22, 1823 in Halle (Saale) ; † April 10, 1891 in Berlin ) was a German master mason and building contractor who emerged as the inventor of the Rabitz plaster construction and as a pioneer in green flat roof construction .

Life

As a bricklayer journeyman with Albert Dietrich Schadow , he acquired the master craftsman's certificate in 1853 . Since 1854 he worked as a freelance master mason (building contractor). In 1864 he invented the technique of fire-proof ceiling plaster under wooden beams and received the additional patent for the Rabitz wall. This technique is known as a lightweight wall ( wire plaster wall ).

In his 1867 laid brochure Nature roofs of volcanic Cement he campaigned for green roofs as a garden roof and exhibited at the 1867 World Exhibition in Paris be greened flat roof before.

He was awarded the honorary title of a (royal Prussian) master mason .

Carl Rabitz was buried in the Invalidenfriedhof in Berlin.

precursor

Carrying plaster supports were reeds (wired), expanded metal ribs , brick wire and various fabrics made from metal wires. The substructure was plastered with mortar , especially gypsum and / or cement mortar. The trade is one of the work of the plasterer .

This technology is said to have been known since 1840 and imported and revised by Rabitz to Germany.

invention

A frame made of load-bearing round bars measuring five to eight millimeters lies below the overlay bars and is connected to one another with binding wire. A metal mesh approximately one millimeter thick is then wired to the construction. Then a gypsum or cement plaster is applied. Accordingly, it is plaster of paris ceilings and walls or cement rabitz ceilings and walls.

The fire protection requirements are met for a specific purpose . Ceilings could be pulled down, vaults , non-load-bearing stud walls , the sheathing of pillars and supports, the facing of installations and the construction of ventilation ducts.

Another advantage was that panels could be prefabricated lying (horizontally) on the construction site in shell shapes and then hung from the ceilings or set up as partition walls. This made them easier to access during production and could be produced more easily and by assistants. However, pre-production in prefabricated factories was not possible due to the lack of vehicles and roads for gentle transport of the fragile panels during the main period of use.

Norms

  • for large Rabitz blankets "Decree of the former Prussian Minister for People's Welfare " of December 15, 1930 II C 2494 and DIN 4121 of August 1951,
  • DIN 4103 for Rabitz walls
  • in Technical requirements for construction DIN 1964 B, paragraph 15, is with respect to this work (where wire lath ) comprises running: " wire mesh is to be attached properly with round or band iron, clamping screws, hooks, forged nails or iron loops and to stretch taut so that no cracks appear in the surfaces or at the connections. The required number and strength of hanging irons must be attached. Hair mortar is to be used for the plaster core . In addition, the provisions for wall and ceiling plaster apply accordingly. "

Today this trade is mainly used in monument preservation . This technology supports the possibility of free shaping of the surfaces. It is suitable for modern and innovative interior design in combination with stucco .

Projects

Fonts

  • Natural roofs made of volcanic cement or modern hanging gardens, more refractory, more excellent, more beautiful, more durable and cheaper than any other type of roofing. 1867.

literature

  • Paul Binder, Fritz Schaumann, Meinrad Haas, Karl Läpple: plasterer manual. The plaster fibula. 5th edition, Schäfer, Hannover 1996, p. 9 and p. 115-144. (Reprint of "Gipsfibel" - a guideline for vocational training and preparation for the journeyman's examination in plasterers (plasterers) and building contractors . 3rd edition, around 1955.)
  • Hans-Henning Zabel:  Rabitz, Johann Christoph Carl. In: New German Biography (NDB). Volume 21, Duncker & Humblot, Berlin 2003, ISBN 3-428-11202-4 , p. 73 ( digitized version ).

Web links

Individual evidence

  1. ↑ patented on July 19, 1878 under DRP 3789
  2. ↑ on August 6, 1878 - under the same patent number
  3. ↑ quoted from Werner Wirsing and Karl Albert Gollwitzer , 1962, p. 17.
personal data
SURNAME Rabitz, Carl
ALTERNATIVE NAMES Rabitz, Karl
BRIEF DESCRIPTION German master mason, building contractor and inventor, pioneer in green flat roof construction
DATE OF BIRTH December 22, 1823
PLACE OF BIRTH Halle (Saale)
DATE OF DEATH April 10, 1891
Place of death Berlin