Ultra high-strength hydraulic cement compositions

Details Ultra high-strength hydraulic cement compositions Ultra high-strength hydraulic cement compositions

C - Chemistry, Metallurgy

04

B

C04B 24/24 (2006.01) C04B 24/16 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C04B 28/02 (2006.01)

Patent

CA 2107268

Ultra high-strength hydraulic cement compositions with extremely low water-to-cement ratio of 10-30% and having high fluidity and improved capability of preventing slump loss, from which high-quality ultra high-strength hardened concrete and mortar can be obtained with superior workability, contain a binder composed of cement or a mixture of cement and a microscopic powder admixture, aggregates, water and a cement dispersion agent composed of water-soluble vinyl copolymers obtained by aqueous solution radical polymerization of four or five specified kinds of monomers at a ratio within a specified range. The unit content of the binder is 400-1300kg/m3, the water-to-binder ratio is 10-30% and the content of cement dispersion agent is 0.1-2.0 weight parts for 100 weight parts of the binder.

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