Process for producing a hydraulic binder (i)

Details Process for producing a hydraulic binder (i) Process for producing a hydraulic binder (i)

C - Chemistry, Metallurgy

04

B

C04B 7/04 (2006.01) C04B 7/02 (2006.01) C04B 22/10 (2006.01) C04B 22/14 (2006.01) C04B 28/02 (2006.01) C04B 28/04 (2006.01)

Patent

CA 2076869

ABSTRACT In a hydraulic binder based on Portland cement clinker, care is taken that the maximum hemihydrate content does not exceed a certain maximum amount. A carbonate donor and at least one iron- complexing compound are utilized as additives for regulating the properties of the binder. By controlling the hemihydrate content, it is possible to set the properties (workability, setting time, early and long-term strength) in a reproducible fashion. The binders according to the invention are distinguished by low sensitivity of the proper- ties with respect to changes of the parameters (for example, water/cement ratio, processing tempera- ture).

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