C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 7/02 (2006.01) C04B 7/00 (2006.01) C04B 28/04 (2006.01)
Patent
CA 2118029
A cement composition consisting essentially of: a) from 50 % to 97 % by weight (calculated on the total composition) of a Portland cement clinker, the sulfur content of which is in the range of 0.5-10 % by weight expressed as SO3, and the fluorine content of which is in the range of 0.13-1.00 % by weight expressed as F-; and b) from 3 % to 50 % by weight (calculated on the total composition) of an extender containing a carbonate selected from calcium carbonate, magnesium carbonate and calcium magnesium carbonate, and mixtures thereof, as its main constituent and having a median particle size (d50) of below 14 µm.
Borgholm Hans E.
Damtoft Jesper S.
Aalborg Portland A/s
Blue Circle Industries Plc
Ridout & Maybee Llp
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