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US 12,673,897 B2Granted
Hydraulic binder composition
AssigneeBostik SA
InventorJérémy Becquet
Life of this patent
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Abstract
The present invention relates to a hydraulic binder composition comprising: at least one Portland cement; at least one amorphous calcium aluminate; calcium sulfate; at least one alkaline salt S chosen from K2CO3, Rb2CO3, Cs2CO3 and mixtures thereof; the composition being characterized in that the mass ratio of alkaline salt(s) S to amorphous calcium aluminate(s) ranges from 0.01 to 0.2.
Claims13
A dry mortar or concrete composition comprising:
- a hydraulic binder composition comprising:
- at least one Portland cement;
- at least one amorphous calcium aluminate, the at least one amorphous calcium aluminate comprising at least 60% of amorphous phase;
- calcium sulfate;
- at least one alkali metal salt selected from the group consisting of K2CO3, Rb2CO3, Cs2CO3 and mixtures thereof;
- wherein a weight ratio of the at least one alkali metal salt:the at least one amorphous calcium aluminate ranges from 0.01 to 0.2, and a total weight content of the at least one alkali metal salt in the dry mortar or concrete composition ranges from 0.05% to 0.30% by weight relative to a total weight of the dry mortar or concrete composition;
- at least one aggregate;
- and
- one or more polymers chosen from copolymers of vinyl acetate, copolymers of vinyl versatates, copolymers of ethylene, polyvinyl alcohols, styrene/butadiene aqueous dispersions, styrene/acrylic aqueous dispersions, styrene/acrylate aqueous dispersions, acrylic aqueous dispersions and vinyl acetate aqueous dispersions.
6 more elements
A wet mortar or wet concrete composition comprising:
- a dry mortar or concrete composition comprising
- a hydraulic binder composition comprising:
- at least one Portland cement;
- at least one amorphous calcium aluminate, the at least one amorphous calcium aluminate comprising at least 60% of amorphous phase;
- calcium sulfate;
- at least one alkali metal salt selected from the group consisting of K2CO3, Rb2CO3, Cs2CO3 and mixtures thereof;
- wherein a weight ratio of the at least one alkali metal salt:the at least one amorphous calcium aluminate ranges from 0.01 to 0.2, and a total weight content of the at least one alkali metal salt in the dry mortar or concrete composition ranges from 0.05% to 0.30% by weight relative to a total weight of the dry mortar or concrete composition;
- at least one aggregate;
- and
- one or more polymers chosen from copolymers of vinyl acetate, copolymers of vinyl versatates, copolymers of ethylene, polyvinyl alcohols, styrene/butadiene aqueous dispersions, styrene/acrylic aqueous dispersions, styrene/acrylate aqueous dispersions, acrylic aqueous dispersions and vinyl acetate aqueous dispersions;
- and
- water.
9 more elements
Dependencies are inferred from the claim text.