Sulzer Brothers Limited

Sika Technology Ag

Alexander Stücheli

Christian Bürge

Urs Mäder

Alexander Bleibler

Ralf Beissel

Beat Schnider

Martin Schaub

The invention relates to a method for producing a coated basic material for a hydraulic composition () comprising a basic material () and water (). According to the invention, the basic material can consist of several sub-groups () and at least one hydraulic binding agent () and to produce the hydraulic composition the basic material () and the water () are mixed in a mixer (). Prior to the mixing of the hydraulic composition, the basic material () is at least partially coated with an additive (). The invention also relates to a coated basic material to be used in concrete production, to an additive for concrete production and to a method for producing a hydraulic composition.

Method for producing a coated basic material for a hydraulic composition, coated basic material for a hydraulic composition, additive for a hydraulic composition and method for producing a hydraulic composition

A quantity of tritium of less than 1 mol per hour is continuously withdrawn from the vaporization chamber of a low-temperature rectifying column by means of a withdrawal system. The withdrawal system consists basically of two parallel-connected vacuum tanks which are alternately connected to the vaporization chamber via a withdrawal line containing a control valve. During operation, one of the vacuum tanks is connected to the low-temperature rectifying column and filled with tritium. As soon as one of the vacuum tanks has been filled with tritium, emptying of the tank starts while the second vacuum tank is connected to the vaporization chamber and similarly filled and then emptied.

Method and apparatus for withdrawing a bottom product from a

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Winterthur, Switzerland

Alexander Stücheli