Long-workability calcium aluminate cement with hardening promoted by a temperature increase, and related use
AssigneeKerneos
InventorsBruno Espinosa, Mark Winslow Fitzgerald, Charles Walter Alt, Philippe Thouilleux, Ratana Soth, Michael Lievin
Life of this patent
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Abstract
Disclosed is to a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides Al2O3 and/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.
Claims18
Calcium aluminate cement, comprising a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 comprising one calcium oxide CaO for two aluminium oxides Al2O3 and a second crystallised mineralogical phase of dicalcium alumina silicate C2AS comprising two calcium oxides CaO for one aluminium oxide Al2O3 and one silicon dioxide SiO2,
- wherein the mass fraction of all of said first and second mineralogical phases in said calcium aluminate is greater than or equal to 80%, and
- wherein said calcium aluminate further comprises an additional mineralogical phase of sulfocalcium aluminate C4A3$ comprising four calcium oxides CaO for three aluminium oxides Al2O3 and one sulphur oxide SO3.
Dependencies are inferred from the claim text.