US 9 073 784 B2

Calcium sulfoaluminate cement with ternesite

(22) 16.07.2012

(45) 07.07.2015

(57) The present invention relates to a ternesite calcium sulfoaluminate clinker as well as a ternesite clinker containing 20 to 100 % by weight of C5S2$ and less than 15 % by weight of C4A3$, as well as the use of ternesite as an additive to calcium sulfoaluminate (ferrite) (belite) (CSA(F)(B)) clinker, calcium sulfoaluminate (ferrite) (belite) cement, and calcium sulfoaluminate (ferrite) (belite) ­binder containing 10 to 90 % by weight of CSA(F)(B) and 90 to 10 % by weight of ternesite.

(73) HeidelbergCement AG, Heidelberg (DE)

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