Rapid binder compositions containing a calcium salt for concrete components and structures
AssigneesChryso, Lafarge
InventorsSerge Sabio, Bruno Pellerin, Christophe Levy, Serge Ghilardi
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Abstract
The invention concerns a fast binder comprising; cement; at least one superplasticizer; calcium nitrite; and at least one formic derivative. The invention also concerns concrete mixtures obtained from said binder and methods for making same.
Claims26
A rapid binder comprising:
- cement;
- at least one superplasticizer;
- calcium nitrite;
- and
- at least one compound selected from the group consisting of sodium formaldehyde bisulfite and sodium formaldehyde sulfoxylate.
An accelerator comprising at least one superplasticizer, calcium nitrite and at least one compound selected from the group consisting of sodium formaldehyde bisulfite and sodium formaldehyde sulfoxylate.
A wet mortar or concrete composition comprising a rapid binder comprising cement, at least one superplasticizer, calcium nitrite, and at least one compound selected from the group consisting of sodium formaldehyde bisulfite and sodium formaldehyde sulfoxylate.
A method of preparing mortar or concrete by mixing i) a rapid binder comprising cement, at least one superplasticizer, calcium nitrite, and at least compound selected from the group consisting of sodium formaldehyde bisulfite and sodium formaldehyde sulfoxylate and ii) aggregates with iii) water.
A method of producing mortar or concrete objects with formwork struck twice in one day, the formwork being struck twice at a temperature of 10° C. or below.
Dependencies are inferred from the claim text.