Sika Ag, Vorm. Kaspar Winkler & Co.

Sika Ag, Vorm. Kaspar Winkler

Theodor A. Burge

Eugen Bodenmann

Theodor A Burge

Disclosed is a highly reactive hydraulic binder for the preparation of building, construction and raw materials which contains burned oil shale and at least one compound, selected from the group, consisting of

Highly reactive hydraulic binder for the preparation of building,

For the acceleration of the setting and of the hardening of a hydraulic binding agent such as cement, limestone, hydraulic limestone and gypsum as well as mortar and concrete prepared thereof, are added to the mixture, which contains said binding agent, from 0.5 to 10 percent by weight, referred to the weight of this binding agent, of an alkali-free setting- and hardening-accelerator, whereby this accelerator contains aluminum hydroxide.

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Zurich, Switzerland

Eugen Bodenmann