Additives for cement

Details Additives for cement Additives for cement

2011-08-16

2011-08-16

Green, Anthony (Department: 1731)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S693000, C106S695000, C106S696000, C106S808000

Reexamination Certificate

active

07998267

ABSTRACT:
A belite-calcium sulphoaluminate-ferrite (BCSAF) cement composition including: a BCSAF clinker which clinker has the following mineralogical composition, based on the total weight of the clinker: 5 to 25%, preferably 10 to 20%, of a calcium aluminoferrite phase having the general formula C2AxF(1−X), wherein X is from 0.2 to 0.8; 15 to 35% of a calcium sulphoaluminate phase; 40 to 75% of belite (C2S); from 0.01 to 10% in total of one or more minor phases selected from calcium sulphates, alkali metal sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase and/or a vitreous phase; and an alkanolamine.

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